Sol Boucher (solb@chromium.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/9942
-gerrit
commit 085509ac1b856208374ff0f7e4e91583877f01d4 Author: Sol Boucher solb@chromium.org Date: Thu Feb 26 11:47:19 2015 -0800
fmaptool: Introduce the fmd ("flashmap descriptor") language and compiler
This adds a compiler for a language whose textual representation of flashmap regions will be used to describe the layout of flash chips that contain more than just a single CBFS. Direct integration with cbfstool (via a new command-line switch for the create action) is forthcoming but will be added separately.
BUG=chromium:461875 TEST=Use Chromium OS's cros_bundle_firmware script on the fmap.dts file for panther. Using the latter file as a reference, write a corresponding fmap.fmd file and feed it through fmaptool. Run both binary output files though the flashmap project's own flashmap_decode utility. Observe only the expected differences. BRANCH=None
Change-Id: I06b32d138dbef0a4e5ed43c81bd31c796fd5d669 Signed-off-by: Sol Boucher solb@chromium.org Original-Commit-Id: 005ab67eb594e21489cf31036aedaea87e0c7142 Original-Change-Id: Ia08f28688efdbbfc70c255916b8eb7eb0eb07fb2 Original-Signed-off-by: Sol Boucher solb@chromium.org Original-Reviewed-on: https://chromium-review.googlesource.com/255031 Original-Reviewed-by: Julius Werner jwerner@chromium.org Original-Reviewed-by: Stefan Reinauer reinauer@chromium.org --- .gitignore | 1 + Makefile.inc | 6 +- src/Kconfig | 14 +- util/cbfstool/Makefile | 42 +- util/cbfstool/Makefile.inc | 45 +- util/cbfstool/README.fmaptool | 67 ++ util/cbfstool/common.h | 1 + util/cbfstool/flashmap/fmap.c | 141 +-- util/cbfstool/flashmap/fmap.h | 24 +- util/cbfstool/flashmap/kv_pair.c | 23 +- util/cbfstool/flashmap/kv_pair.h | 2 +- util/cbfstool/flashmap/valstr.c | 1 + util/cbfstool/flashmap_tests.c | 37 + util/cbfstool/fmap_from_fmd.c | 83 ++ util/cbfstool/fmap_from_fmd.h | 33 + util/cbfstool/fmaptool.c | 119 +++ util/cbfstool/fmd.c | 401 +++++++++ util/cbfstool/fmd.h | 143 +++ util/cbfstool/fmd_parser.c | 1647 +++++++++++++++++++++++++++++++++ util/cbfstool/fmd_parser.h | 109 +++ util/cbfstool/fmd_parser.y | 190 ++++ util/cbfstool/fmd_scanner.c | 1852 ++++++++++++++++++++++++++++++++++++++ util/cbfstool/fmd_scanner.h | 333 +++++++ util/cbfstool/fmd_scanner.l | 78 ++ util/cbfstool/option.h | 29 + 25 files changed, 5258 insertions(+), 163 deletions(-)
diff --git a/.gitignore b/.gitignore index 678982d..0398b15 100644 --- a/.gitignore +++ b/.gitignore @@ -60,6 +60,7 @@ util/*/.dependencies util/*/.test util/board_status/board-status util/cbfstool/cbfstool +util/cbfstool/fmaptool util/cbfstool/rmodtool util/cbmem/.dependencies util/cbmem/cbmem diff --git a/Makefile.inc b/Makefile.inc index 06c3302..ebad6c7 100644 --- a/Makefile.inc +++ b/Makefile.inc @@ -285,11 +285,15 @@ build-dirs: ####################################################################### # Build the tools CBFSTOOL:=$(objutil)/cbfstool/cbfstool +FMAPTOOL:=$(objutil)/cbfstool/fmaptool RMODTOOL:=$(objutil)/cbfstool/rmodtool
$(obj)/cbfstool: $(CBFSTOOL) cp $< $@
+$(obj)/fmaptool: $(FMAPTOOL) + cp $< $@ + $(obj)/rmodtool: $(RMODTOOL) cp $< $@
@@ -544,7 +548,7 @@ prebuild-files = \ $(cbfs-add-cmd) $(if $(call extract_nth,5,$(file)),-b $(call extract_nth,5,$(file))) &&)) prebuilt-files = $(foreach file,$(cbfs-files), $(call extract_nth,1,$(file)))
-$(obj)/coreboot.pre1: $(objcbfs)/bootblock.bin $$(prebuilt-files) $(CBFSTOOL) $$(cpu_ucode_cbfs_file) +$(obj)/coreboot.pre1: $(objcbfs)/bootblock.bin $$(prebuilt-files) $(FMAPTOOL) $(CBFSTOOL) $$(cpu_ucode_cbfs_file) $(CBFSTOOL) $@.tmp create \ -B $(objcbfs)/bootblock.bin -a 64 \ $(CBFSTOOL_PRE1_OPTS) diff --git a/src/Kconfig b/src/Kconfig index df4e320..480b8e9 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -108,15 +108,25 @@ config CCACHE
For details see https://ccache.samba.org.
+config FMD_GENPARSER + bool "Generate flashmap descriptor parser using flex and bison" + default n + depends on EXPERT + help + Enable this option if you are working on the flashmap descriptor + parser and made changes to fmd_scanner.l or fmd_parser.y. + + Otherwise, say N to use the provided pregenerated scanner/parser. + config SCONFIG_GENPARSER bool "Generate SCONFIG parser using flex and bison" default n depends on EXPERT help Enable this option if you are working on the sconfig device tree - parser and made changes to sconfig.l and sconfig.y. + parser and made changes to sconfig.l or sconfig.y.
- Otherwise, say N. + Otherwise, say N to use the provided pregenerated scanner/parser.
config USE_OPTION_TABLE bool "Use CMOS for configuration values" diff --git a/util/cbfstool/Makefile b/util/cbfstool/Makefile index 86338db..2c63e05 100644 --- a/util/cbfstool/Makefile +++ b/util/cbfstool/Makefile @@ -6,7 +6,9 @@ CFLAGS += -g3 CFLAGS += -std=c99 -Werror -Wall -Wextra CFLAGS += -Wcast-qual -Wmissing-prototypes -Wredundant-decls -Wshadow CFLAGS += -Wstrict-prototypes -Wwrite-strings +CPPFLAGS += -D_DEFAULT_SOURCE # memccpy() from string.h CPPFLAGS += -D_POSIX_C_SOURCE=200809L # strdup() from string.h +CPPFLAGS += -Iflashmap LDFLAGS += -g3
CBFSTOOL_BINARY:=$(obj)/cbfstool @@ -19,14 +21,28 @@ CBFSTOOL_COMMON+=lzma/C/LzFind.o lzma/C/LzmaDec.o lzma/C/LzmaEnc.o
CBFSTOOL_COMMON:=$(addprefix $(obj)/,$(CBFSTOOL_COMMON))
+FMAPTOOL_BINARY:=$(obj)/fmaptool +FMAPTOOL_COMMON:=fmap_from_fmd.o fmd.o fmd_parser.o fmd_scanner.o +# FMAP +FMAPTOOL_COMMON+=flashmap/fmap.o +FMAPTOOL_COMMON+=flashmap/kv_pair.o flashmap/valstr.o + +FMAPTOOL_COMMON:=$(addprefix $(obj)/,$(FMAPTOOL_COMMON))
RMODTOOL_BINARY:=$(obj)/rmodtool RMODTOOL_COMMON:=rmodule.o common.o elfheaders.o xdr.o
RMODTOOL_COMMON:=$(addprefix $(obj)/,$(RMODTOOL_COMMON))
+FMAPTESTS_BINARY:=$(obj)/flashmap_tests +FMAPTESTS_COMMON:=flashmap/fmap.o flashmap/valstr.o flashmap/kv_pair.o + +FMAPTESTS_COMMON:=$(addprefix $(obj)/,$(FMAPTESTS_COMMON)) + +GENERATED:=fmd_parser.c fmd_parser.h fmd_scanner.c fmd_scanner.h + .PHONY: all -all: .dependencies $(CBFSTOOL_BINARY) $(RMODTOOL_BINARY) +all: .dependencies $(CBFSTOOL_BINARY) $(FMAPTOOL_BINARY) $(RMODTOOL_BINARY)
$(obj)/%: $(obj)/%.o mkdir -p $(dir $@) @@ -34,27 +50,47 @@ $(obj)/%: $(obj)/%.o $(obj)/%.o: %.c mkdir -p $(dir $@) $(HOSTCC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $< +%.c %.h: %.l + $(LEX) $(LFLAGS) -t --header-file=$*.h $< >$*.c +%.c %.h: %.y + $(YACC) $(YFLAGS) -d $< + mv -f y.tab.c $*.c + mv -f y.tab.h $*.h
.PHONY: clean clean: $(RM) $(CBFSTOOL_COMMON) $(CBFSTOOL_BINARY).o $(CBFSTOOL_BINARY) + $(RM) $(FMAPTOOL_COMMON) $(FMAPTOOL_BINARY).o $(FMAPTOOL_BINARY) $(RM) $(RMODTOOL_COMMON) $(RMODTOOL_BINARY).o $(RMODTOOL_BINARY) + $(RM) $(FMAPTESTS_COMMON) $(FMAPTESTS_BINARY).o $(FMAPTESTS_BINARY) .PHONY: distclean distclean: clean $(RM) .dependencies +.PHONY: maintainer-clean +maintainer-clean: distclean + $(RM) $(GENERATED)
-tags: +tags: $(GENERATED) ctags *.[ch]
-.dependencies: +.dependencies: $(GENERATED) @$(HOSTCC) $(CPPFLAGS) $(CFLAGS) -MM -MG *.c > $@ + @$(HOSTCC) $(CPPFLAGS) $(CFLAGS) -MM flashmap/*.c >> $@ @$(HOSTCC) $(CPPFLAGS) $(CFLAGS) -MM lzma/*.c >> $@ @$(HOSTCC) $(CPPFLAGS) $(CFLAGS) -MM lzma/C/*.c >> $@ @sed -i 's|.*:.*|$$(obj)/&|' $@
$(CBFSTOOL_BINARY): $(CBFSTOOL_COMMON) +$(FMAPTOOL_BINARY): $(FMAPTOOL_COMMON) $(RMODTOOL_BINARY): $(RMODTOOL_COMMON)
+# This target must be built manually +$(FMAPTESTS_BINARY): $(FMAPTESTS_COMMON) + +# Yacc source is superset of header +$(obj)/fmd_parser.o: CFLAGS += -Wno-redundant-decls +# Lex generates unneeded functions +$(obj)/fmd_scanner.o: CFLAGS += -Wno-unused-function # Tolerate lzma sdk warnings $(obj)/lzma/C/LzmaEnc.o: CFLAGS += -Wno-sign-compare -Wno-cast-qual
diff --git a/util/cbfstool/Makefile.inc b/util/cbfstool/Makefile.inc index 5bf0b70..7fba6be 100644 --- a/util/cbfstool/Makefile.inc +++ b/util/cbfstool/Makefile.inc @@ -17,6 +17,17 @@ cbfsobj += LzmaEnc.o cbfsobj += linux_trampoline.o cbfsobj += cbfs-payload-linux.o
+fmapobj := +fmapobj += fmaptool.o +fmapobj += fmap_from_fmd.o +fmapobj += fmd.o +fmapobj += fmd_parser.o +fmapobj += fmd_scanner.o +# FMAP +fmapobj += fmap.o +fmapobj += kv_pair.o +fmapobj += valstr.o + rmodobj := rmodobj += rmodtool.o rmodobj += rmodule.o @@ -27,7 +38,9 @@ rmodobj += xdr.o TOOLCFLAGS ?= -std=c99 -Werror -Wall -Wextra TOOLCFLAGS += -Wcast-qual -Wmissing-prototypes -Wredundant-decls -Wshadow TOOLCFLAGS += -Wstrict-prototypes -Wwrite-strings -TOOLCPPFLAGS ?= -D_POSIX_C_SOURCE=200809L # strdup() from string.h +TOOLCPPFLAGS ?= -D_DEFAULT_SOURCE # memccpy() from string.h +TOOLCPPFLAGS += -D_POSIX_C_SOURCE=200809L # strdup() from string.h +TOOLCPPFLAGS += -I$(top)/util/cbfstool/flashmap TOOLLDFLAGS ?=
ifeq ($(shell uname -s | cut -c-7 2>/dev/null), MINGW32) @@ -38,6 +51,10 @@ $(objutil)/cbfstool/%.o: $(top)/util/cbfstool/%.c printf " HOSTCC $(subst $(objutil)/,,$(@))\n" $(HOSTCC) $(TOOLCPPFLAGS) $(TOOLCFLAGS) $(HOSTCFLAGS) -c -o $@ $<
+$(objutil)/cbfstool/%.o: $(top)/util/cbfstool/flashmap/%.c + printf " HOSTCC $(subst $(objutil)/,,$(@))\n" + $(HOSTCC) $(TOOLCPPFLAGS) $(TOOLCFLAGS) $(HOSTCFLAGS) -c -o $@ $< + $(objutil)/cbfstool/%.o: $(top)/util/cbfstool/lzma/%.c printf " HOSTCC $(subst $(objutil)/,,$(@))\n" $(HOSTCC) $(TOOLCPPFLAGS) $(TOOLCFLAGS) $(HOSTCFLAGS) -c -o $@ $< @@ -50,9 +67,35 @@ $(objutil)/cbfstool/cbfstool: $(addprefix $(objutil)/cbfstool/,$(cbfsobj)) printf " HOSTCC $(subst $(objutil)/,,$(@)) (link)\n" $(HOSTCC) $(TOOLLDFLAGS) -o $@ $(addprefix $(objutil)/cbfstool/,$(cbfsobj))
+$(objutil)/cbfstool/fmaptool: $(addprefix $(objutil)/cbfstool/,$(fmapobj)) + printf " HOSTCC $(subst $(objutil)/,,$(@)) (link)\n" + $(HOSTCC) $(TOOLLDFLAGS) -o $@ $(addprefix $(objutil)/cbfstool/,$(fmapobj)) + $(objutil)/cbfstool/rmodtool: $(addprefix $(objutil)/cbfstool/,$(rmodobj)) printf " HOSTCC $(subst $(objutil)/,,$(@)) (link)\n" $(HOSTCC) $(TOOLLDFLAGS) -o $@ $(addprefix $(objutil)/cbfstool/,$(rmodobj))
+# Yacc source is superset of header +$(objutil)/cbfstool/fmd_parser.o: TOOLCFLAGS += -Wno-redundant-decls +# Lex generates unneeded functions +$(objutil)/cbfstool/fmd_scanner.o: TOOLCFLAGS += -Wno-unused-function # Tolerate lzma sdk warnings $(objutil)/cbfstool/LzmaEnc.o: TOOLCFLAGS += -Wno-sign-compare -Wno-cast-qual + +ifeq ($(CONFIG_FMD_GENPARSER),y) +TOOLLEX := lex +TOOLYACC := yacc + +$(objutil)/cbfstool/fmd.o: $(top)/util/cbfstool/fmd_parser.c +$(objutil)/cbfstool/fmd.o: $(top)/util/cbfstool/fmd_scanner.c +$(objutil)/cbfstool/fmd_parser.o: $(objutil)/cbfstool/fmd.o +$(objutil)/cbfstool/fmd_scanner.o: $(objutil)/cbfstool/fmd.o +$(top)/util/cbfstool/fmd_scanner.c $(top)/util/cbfstool/fmd_scanner.h: $(top)/util/cbfstool/fmd_scanner.l + echo " LEX util/cbfstool/fmd_scanner.[ch]" + $(TOOLLEX) -t --header-file=$(top)/util/cbfstool/fmd_scanner.h $< >$(top)/util/cbfstool/fmd_scanner.c +$(top)/util/cbfstool/fmd_parser.c $(top)/util/cbfstool/fmd_parser.h: $(top)/util/cbfstool/fmd_parser.y + echo " YACC util/cbfstool/fmd_parser.[ch]" + $(TOOLYACC) -d $< + mv -f y.tab.c $(top)/util/cbfstool/fmd_parser.c + mv -f y.tab.h $(top)/util/cbfstool/fmd_parser.h +endif diff --git a/util/cbfstool/README.fmaptool b/util/cbfstool/README.fmaptool new file mode 100644 index 0000000..f806c43 --- /dev/null +++ b/util/cbfstool/README.fmaptool @@ -0,0 +1,67 @@ +Flashmap descriptors in coreboot +================================ +Flashmap (https://code.google.com/p/flashmap) is a binary format for representing the layout of +flash chips. Since coreboot is starting to use a "partition" of this format to describe the flash +chip layout---both at runtime and when flashing a new image onto a chip---, the project needed a +reasonably expressive plaintext format for representing such sections in the source tree. Our +solution is the fmd ("flashmap descriptor") language, and the files in this directory contain a +scanner, parser, semantic analyser, and flashmap converter. Here's an informal language description: + +# <line comment> +<image name>[@<memory-mapped address>] <image size> { + <section name>[@<offset from start of image>] [<section size>] [{ + <subsection name>[@<offset from start of parent section>] [<subsection size>] [{ + # Sections can be nested as deeply as desired + <subsubsection name>[(CBFS)][@...] [...] [{...}] + }] + [<subsection name>[(CBFS)][@...] [...] [{...}]] + # There can be many subsections at each level of nesting: they will be inserted + # sequentially, and although gaps are allowed, any provided offsets are always + # relative to the closest parent node's and must be strictly increasing with neither + # overlapping nor degenerate-size sections. + }] +} + +Note that the above example contains a few symbols that are actually metasyntax, and therefore have +neither meaning nor place in a real file. The <.*> s indicate placeholders for parameters: + - The names are strings, which are provided as single-word---no whitespace---groups of + syntactically unimportant symbols (i.e. everything except @, {, and }): they are not surrounded + by quotes or any other form of delimiter. + - The other fields are nonnegative integers, which may be given as decimal or hexadecimal; in + either case, a K, M, or G may be appended---without intermediate whitespace---as a multiplier. + - Comments consist of anything one manages to enter, provided it doesn't start a new line. +The [.*] s indicate that a portion of the file could be omitted altogether: + - Just because something is noted as optional doesn't mean it is in every case: the answer might + actually depend on which other information is---or isn't---provided. + - In particular, it is only legal to place a (CBFS) annotation on a leaf section; that is, choosing + to add child sections excludes the possibility of putting a CBFS in their parent. Such + annotations are only used to decide where CBFS empty file headers should be created, and do not + result in the storage of any additional metadata in the resulting FMAP section. +Additionally, it's important to note these properties of the overall file and its values: + - Other than within would-be strings and numbers, whitespace is ignored. It goes without saying + that such power comes with responsibility, which is why this sentence is here. + - Although the .*section names must be globally unique, one of them may---but is not required to--- + match the image name. + - It is a syntax error to supply a number---besides 0---that begins with the character 0, as there + is no intention of adding octals to the mix. + - The image's memory address should be present on---and only on---layouts for memory-mapped chips. + - Although it may be evident from above, all .*section offsets are relative only to the immediate + parent. There is no way to include an absolute offset (i.e. from the beginning of flash), which + means that it is "safe" to reorder the .*section s within a particular level of nesting, as long + as the change doesn't cause their positions and sizes to necessitate overlap or zero sizes. + - A .*section with omitted offset is assumed to start at as low a position as possible---with no + consideration of alignment---and one with omitted size is assumed to fill the remaining space + until the next sibling or before the end of its parent. + - It's fine to omit any .*section 's offset, size, or both, provided its position and size are + still unambiguous in the context of its *sibling* sections and its parent's *size*. In + particular, knowledge of one .*section 's children or the .*section s' common parent's siblings + will not be used for this purpose. + - Although .*section s are not required to have children, the flash chip as a whole must have at + least one. + - Though the braces after .*section s may be omitted for those that have no children, if they are + present, they must contain at least one child. + +PL people and sympathizers may wish to examine the formal abstract syntax and context-free grammar, +which are located in fmd_scanner.l and fmd_scanner.y, respectively. Those interested in the +algorithm used to infer omitted values will feel at home in fmd.c, particularly near the definition +of validate_and_complete_info(). diff --git a/util/cbfstool/common.h b/util/cbfstool/common.h index 80d5789..f364ea1 100644 --- a/util/cbfstool/common.h +++ b/util/cbfstool/common.h @@ -20,6 +20,7 @@ #ifndef __CBFSTOOL_COMMON_H #define __CBFSTOOL_COMMON_H
+#include <stddef.h> #include <stdint.h> #include <assert.h>
diff --git a/util/cbfstool/flashmap/fmap.c b/util/cbfstool/flashmap/fmap.c index 68c7d83..4a8e534 100644 --- a/util/cbfstool/flashmap/fmap.c +++ b/util/cbfstool/flashmap/fmap.c @@ -1,4 +1,4 @@ -/* Copyright 2010, Google Inc. +/* Copyright 2015, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -49,7 +49,6 @@ #include <valstr.h>
#include "kv_pair.h" -#include "mincrypt/sha.h"
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
@@ -60,7 +59,7 @@ const struct valstr flag_lut[] = { };
/* returns size of fmap data structure if successful, <0 to indicate error */ -int fmap_size(struct fmap *fmap) +int fmap_size(const struct fmap *fmap) { if (!fmap) return -1; @@ -71,7 +70,7 @@ int fmap_size(struct fmap *fmap) /* brute force linear search */ static long int fmap_lsearch(const uint8_t *image, size_t len) { - long int offset; + unsigned long int offset; int fmap_found = 0;
for (offset = 0; offset < len - strlen(FMAP_SIGNATURE); offset++) { @@ -86,7 +85,7 @@ static long int fmap_lsearch(const uint8_t *image, size_t len) if (!fmap_found) return -1;
- if (offset + fmap_size((struct fmap *)&image[offset]) > len) + if (offset + fmap_size((const struct fmap *)&image[offset]) > len) return -1;
return offset; @@ -95,7 +94,7 @@ static long int fmap_lsearch(const uint8_t *image, size_t len) /* if image length is a power of 2, use binary search */ static long int fmap_bsearch(const uint8_t *image, size_t len) { - long int offset = -1; + unsigned long int offset = -1; int fmap_found = 0, stride;
/* @@ -125,7 +124,7 @@ static long int fmap_bsearch(const uint8_t *image, size_t len) if (!fmap_found) return -1;
- if (offset + fmap_size((struct fmap *)&image[offset]) > len) + if (offset + fmap_size((const struct fmap *)&image[offset]) > len) return -1;
return offset; @@ -183,86 +182,42 @@ int fmap_print(const struct fmap *fmap) kv_pair_free(kv);
for (i = 0; i < fmap->nareas; i++) { - struct kv_pair *kv; + struct kv_pair *pair; uint16_t flags; char *str;
- kv = kv_pair_new(); - if (!kv) + pair = kv_pair_new(); + if (!pair) return -1;
- kv_pair_fmt(kv, "area_offset", "0x%08x", + kv_pair_fmt(pair, "area_offset", "0x%08x", fmap->areas[i].offset); - kv_pair_fmt(kv, "area_size", "0x%08x", + kv_pair_fmt(pair, "area_size", "0x%08x", fmap->areas[i].size); - kv_pair_fmt(kv, "area_name", "%s", + kv_pair_fmt(pair, "area_name", "%s", fmap->areas[i].name); - kv_pair_fmt(kv, "area_flags_raw", "0x%02x", + kv_pair_fmt(pair, "area_flags_raw", "0x%02x", fmap->areas[i].flags);
/* Print descriptive strings for flags rather than the field */ flags = fmap->areas[i].flags; if ((str = fmap_flags_to_string(flags)) == NULL) return -1; - kv_pair_fmt(kv, "area_flags", "%s", str ); + kv_pair_fmt(pair, "area_flags", "%s", str); free(str);
- kv_pair_print(kv); - kv_pair_free(kv); + kv_pair_print(pair); + kv_pair_free(pair); }
return 0; }
-/* get SHA1 sum of all static regions described by the flashmap and copy into - *digest (which will be allocated and must be freed by the caller), */ -int fmap_get_csum(const uint8_t *image, unsigned int image_len, uint8_t **digest) -{ - int i; - struct fmap *fmap; - int fmap_offset; - SHA_CTX ctx; - - if ((image == NULL)) - return -1; - - if ((fmap_offset = fmap_find(image, image_len)) < 0) - return -1; - fmap = (struct fmap *)(image + fmap_offset); - - SHA_init(&ctx); - - /* Iterate through flash map and calculate the checksum piece-wise. */ - for (i = 0; i < fmap->nareas; i++) { - /* skip non-static areas */ - if (!(fmap->areas[i].flags & FMAP_AREA_STATIC)) - continue; - - /* sanity check the offset */ - if (fmap->areas[i].size + fmap->areas[i].offset > image_len) { - fprintf(stderr, - "(%s) invalid parameter detected in area %d\n", - __func__, i); - return -1; - } - - SHA_update(&ctx, - image + fmap->areas[i].offset, - fmap->areas[i].size); - } - - SHA_final(&ctx); - *digest = malloc(SHA_DIGEST_SIZE); - memcpy(*digest, ctx.buf, SHA_DIGEST_SIZE); - - return SHA_DIGEST_SIZE; -} - /* convert raw flags field to user-friendly string */ char *fmap_flags_to_string(uint16_t flags) { char *str = NULL; - int i, total_size; + unsigned int i, total_size;
str = malloc(1); str[0] = '\0'; @@ -302,8 +257,8 @@ struct fmap *fmap_create(uint64_t base, uint32_t size, uint8_t *name)
memset(fmap, 0, sizeof(*fmap)); memcpy(&fmap->signature, FMAP_SIGNATURE, strlen(FMAP_SIGNATURE)); - fmap->ver_major = VERSION_MAJOR; - fmap->ver_minor = VERSION_MINOR; + fmap->ver_major = FMAP_VER_MAJOR; + fmap->ver_minor = FMAP_VER_MINOR; fmap->base = base; fmap->size = size; memccpy(&fmap->name, name, '\0', FMAP_STRLEN); @@ -390,8 +345,8 @@ static struct fmap *fmap_create_test(void) goto fmap_create_test_exit; }
- if ((fmap->ver_major != VERSION_MAJOR) || - (fmap->ver_minor != VERSION_MINOR)) { + if ((fmap->ver_major != FMAP_VER_MAJOR) || + (fmap->ver_minor != FMAP_VER_MINOR)) { printf("FAILURE: version is incorrect\n"); goto fmap_create_test_exit; } @@ -431,44 +386,7 @@ static int fmap_print_test(struct fmap *fmap) return fmap_print(fmap); }
-static int fmap_get_csum_test(struct fmap *fmap) -{ - uint8_t *digest = NULL, *image = NULL; - /* assume 0x100-0x10100 is marked "static" and is filled with 0x00 */ - int image_size = 0x20000; - uint8_t csum[SHA_DIGEST_SIZE] = { - 0x1a, 0xdc, 0x95, 0xbe, 0xbe, 0x9e, 0xea, 0x8c, - 0x11, 0x2d, 0x40, 0xcd, 0x04, 0xab, 0x7a, 0x8d, - 0x75, 0xc4, 0xf9, 0x61 }; - - status = fail; - - if ((fmap_get_csum(NULL, image_size, &digest) >= 0) || - (fmap_get_csum(image, image_size, NULL) >= 0)) { - printf("failed to abort on NULL pointer input\n"); - goto fmap_get_csum_test_exit; - } - - image = calloc(image_size, 1); - memcpy(image, fmap, fmap_size(fmap)); - - if (fmap_get_csum(image, image_size, &digest) != SHA_DIGEST_SIZE) { - printf("FAILURE: failed to calculate checksum\n"); - goto fmap_get_csum_test_exit; - } - if (memcmp(digest, csum, SHA_DIGEST_SIZE)) { - printf("FAILURE: checksum is incorrect\n"); - goto fmap_get_csum_test_exit; - } - - status = pass; -fmap_get_csum_test_exit: - free(image); - free(digest); - return status; -} - -static int fmap_size_test(struct fmap *fmap) +static int fmap_size_test(void) { status = fail;
@@ -553,10 +471,10 @@ fmap_find_area_test_exit: return status; }
-static int fmap_flags_to_string_test() +static int fmap_flags_to_string_test(void) { char *str, *my_str; - int i; + unsigned int i; uint16_t flags;
status = fail; @@ -646,11 +564,11 @@ static int fmap_find_test(struct fmap *fmap) offset = (total_size / 2) + 1; memcpy(&buf[offset], fmap, fmap_size(fmap));
- if (fmap_find(buf, total_size - 1) != offset) { + if ((unsigned)fmap_find(buf, total_size - 1) != offset) { printf("FAILURE: lsearch failed to find fmap\n"); goto fmap_find_test_exit; } - if (fmap_find(buf, total_size) != offset) { + if ((unsigned)fmap_find(buf, total_size) != offset) { printf("FAILURE: bsearch failed to find fmap\n"); goto fmap_find_test_exit; } @@ -659,7 +577,7 @@ static int fmap_find_test(struct fmap *fmap) offset = 0; memset(buf, 0, total_size); memcpy(buf, fmap, fmap_size(fmap)); - if (fmap_find(buf, total_size) != offset) { + if ((unsigned)fmap_find(buf, total_size) != offset) { printf("FAILURE: bsearch failed to find fmap at offset 0\n"); goto fmap_find_test_exit; } @@ -684,7 +602,7 @@ fmap_find_test_exit: return status; }
-int fmap_test() +int fmap_test(void) { int rc = EXIT_SUCCESS; struct fmap *my_fmap; @@ -713,8 +631,7 @@ int fmap_test() }
rc |= fmap_find_area_test(my_fmap); - rc |= fmap_get_csum_test(my_fmap); - rc |= fmap_size_test(my_fmap); + rc |= fmap_size_test(); rc |= fmap_flags_to_string_test(); rc |= fmap_print_test(my_fmap);
diff --git a/util/cbfstool/flashmap/fmap.h b/util/cbfstool/flashmap/fmap.h index 677576a..22accf3 100644 --- a/util/cbfstool/flashmap/fmap.h +++ b/util/cbfstool/flashmap/fmap.h @@ -1,5 +1,5 @@ /* - * Copyright 2010, Google Inc. + * Copyright 2015, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -97,24 +97,6 @@ extern long int fmap_find(const uint8_t *image, unsigned int len); extern int fmap_print(const struct fmap *map);
/* - * fmap_get_csum - get the checksum of static regions of an image - * - * @image: image to checksum - * @len: length of image - * @digest: double-pointer to store location of first byte of digest - * - * fmap_get_csum() will reset, write, and finalize the digest. - * The location of the final digest will start at the location pointed to - * by digest, which will be allocated and must be freed by the caller. - * - * returns digest length if successful - * returns <0 to indicate error - */ -extern int fmap_get_csum(const uint8_t *image, - unsigned int image_len, uint8_t **digest); - - -/* * fmap_flags_to_string - convert raw flags field into user-friendly string * * @flags: raw flags @@ -157,7 +139,7 @@ extern void fmap_destroy(struct fmap *fmap); * returns size of fmap structure if successful * returns <0 to indicate failure */ -extern int fmap_size(struct fmap *fmap); +extern int fmap_size(const struct fmap *fmap);
/* * fmap_append_area - realloc an existing flashmap and append an area @@ -187,6 +169,6 @@ extern int fmap_append_area(struct fmap **fmap, extern struct fmap_area *fmap_find_area(struct fmap *fmap, const char *name);
/* unit testing stuff */ -extern int fmap_test(); +extern int fmap_test(void);
#endif /* FLASHMAP_LIB_FMAP_H__*/ diff --git a/util/cbfstool/flashmap/kv_pair.c b/util/cbfstool/flashmap/kv_pair.c index f163c13..95e5034 100644 --- a/util/cbfstool/flashmap/kv_pair.c +++ b/util/cbfstool/flashmap/kv_pair.c @@ -47,7 +47,7 @@ void kv_pair_set_style(enum kv_pair_style style) _style = style; }
-enum kv_pair_style kv_pair_get_style() +enum kv_pair_style kv_pair_get_style(void) { return _style; } @@ -63,18 +63,6 @@ struct kv_pair *kv_pair_new(void) return kv; }
-struct kv_pair **kv_pair_new_array(size_t size) -{ - struct kv_pair **kv; - size_t i; - - kv = (struct kv_pair **) calloc(0, sizeof(kv) * size); - for (i = 0; i < size; ++i) { - kv[i] = kv_pair_new(); - } - return kv; -} - struct kv_pair *kv_pair_add(struct kv_pair *kv_list, const char *key, const char *value) { @@ -163,15 +151,6 @@ void kv_pair_free(struct kv_pair *kv_list) } }
-void kv_pair_free_array(struct kv_pair **kv_array, size_t size) -{ - size_t i; - for (i = 0; i < size; ++i) { - kv_pair_free(kv_array[i]); - } - free(kv_array); -} - void kv_pair_print_to_file(FILE* fp, struct kv_pair *kv_list, enum kv_pair_style style) { diff --git a/util/cbfstool/flashmap/kv_pair.h b/util/cbfstool/flashmap/kv_pair.h index 9257a26..7024dd3 100644 --- a/util/cbfstool/flashmap/kv_pair.h +++ b/util/cbfstool/flashmap/kv_pair.h @@ -56,7 +56,7 @@ struct kv_pair { struct kv_pair *next; };
-extern enum kv_pair_style kv_pair_get_style(); +extern enum kv_pair_style kv_pair_get_style(void);
extern void kv_pair_set_style(enum kv_pair_style style);
diff --git a/util/cbfstool/flashmap/valstr.c b/util/cbfstool/flashmap/valstr.c index 8155c94..4843962 100644 --- a/util/cbfstool/flashmap/valstr.c +++ b/util/cbfstool/flashmap/valstr.c @@ -31,6 +31,7 @@
#include <inttypes.h> #include <string.h> +#include <strings.h>
#include <valstr.h>
diff --git a/util/cbfstool/flashmap_tests.c b/util/cbfstool/flashmap_tests.c new file mode 100644 index 0000000..c545285 --- /dev/null +++ b/util/cbfstool/flashmap_tests.c @@ -0,0 +1,37 @@ +/* + * fmap_from_fmd.c, simple launcher for fmap library unit test suite + * + * Copyright (C) 2015 Google, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ + +#include "flashmap/fmap.h" + +#include <stdio.h> + +int main(void) +{ + int result = fmap_test(); + + puts(""); + puts("==="); + puts(""); + if (!result) + puts("RESULT: All unit tests PASSED."); + else + puts("RESULT: One or more tests FAILED!"); + + return result; +} diff --git a/util/cbfstool/fmap_from_fmd.c b/util/cbfstool/fmap_from_fmd.c new file mode 100644 index 0000000..fa1024b --- /dev/null +++ b/util/cbfstool/fmap_from_fmd.c @@ -0,0 +1,83 @@ +/* + * fmap_from_fmd.c, tool to distill flashmap descriptors into raw FMAP sections + * + * Copyright (C) 2015 Google, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ + +#include "fmap_from_fmd.h" + +#include "common.h" + +#include <assert.h> +#include <string.h> + +static bool fmap_append_fmd_node(struct fmap **flashmap, + const struct flashmap_descriptor *section, + unsigned absolute_watermark) { + if (strlen(section->name) >= FMAP_STRLEN) { + fprintf(stderr, + "ERROR: Section name ('%s') exceeds %d character FMAP format limit\n", + section->name, FMAP_STRLEN - 1); + return false; + } + + absolute_watermark += section->offset; + + if (fmap_append_area(flashmap, absolute_watermark, section->size, + (uint8_t *)section->name, 0) < 0) { + fprintf(stderr, + "ERROR: Failed to insert section '%s' into FMAP\n", + section->name); + return false; + } + + fmd_foreach_child(subsection, section) { + if (!fmap_append_fmd_node(flashmap, subsection, + absolute_watermark)) + return false; + } + + return true; +} + +struct fmap *fmap_from_fmd(const struct flashmap_descriptor *desc) +{ + assert(desc); + assert(desc->size_known); + + if (strlen(desc->name) >= FMAP_STRLEN) { + fprintf(stderr, + "ERROR: Image name ('%s') exceeds %d character FMAP header limit\n", + desc->name, FMAP_STRLEN - 1); + return NULL; + } + + struct fmap *fmap = fmap_create(desc->offset_known ? desc->offset : 0, + desc->size, (uint8_t *)desc->name); + if (!fmap) { + fputs("ERROR: Failed to allocate FMAP header\n", stderr); + return fmap; + } + + fmd_foreach_child(real_section, desc) { + if (!fmap_append_fmd_node(&fmap, real_section, 0)) { + fmap_destroy(fmap); + return NULL; + } + } + + return fmap; +} diff --git a/util/cbfstool/fmap_from_fmd.h b/util/cbfstool/fmap_from_fmd.h new file mode 100644 index 0000000..689c859 --- /dev/null +++ b/util/cbfstool/fmap_from_fmd.h @@ -0,0 +1,33 @@ +/* + * fmap_from_fmd.h, tool to distill flashmap descriptors into raw FMAP sections + * + * Copyright (C) 2015 Google, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ + +#ifndef FMAP_FROM_FMD_H_ +#define FMAP_FROM_FMD_H_ + +#include "flashmap/fmap.h" +#include "fmd.h" + +/** + * @param desc The descriptor tree serving as a data source + * @return The FMAP section, which is also owned by the caller and must + * later be released with a call to fmap_destroy() + */ +struct fmap *fmap_from_fmd(const struct flashmap_descriptor *desc); + +#endif diff --git a/util/cbfstool/fmaptool.c b/util/cbfstool/fmaptool.c new file mode 100644 index 0000000..961e9dc --- /dev/null +++ b/util/cbfstool/fmaptool.c @@ -0,0 +1,119 @@ +/* + * fmaptool, CLI utility for converting plaintext fmd files into fmap blobs + * + * Copyright (C) 2015 Google, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ + +#include "common.h" +#include "fmap_from_fmd.h" + +#include <stdio.h> +#include <string.h> + +#define STDIN_FILENAME_SENTINEL "-" + +enum fmaptool_return { + FMAPTOOL_EXIT_SUCCESS = 0, + FMAPTOOL_EXIT_BAD_ARGS, + FMAPTOOL_EXIT_BAD_INPUT_PATH, + FMAPTOOL_EXIT_BAD_OUTPUT_PATH, + FMAPTOOL_EXIT_FAILED_DESCRIPTOR, + FMAPTOOL_EXIT_FAILED_FMAP_CONVERSION, + FMAPTOOL_EXIT_UNKNOWN_FMAP_SIZE, + FMAPTOOL_EXIT_FAILED_WRITING_FILE, +}; + +bool fmd_process_annotation_impl(unused const struct flashmap_descriptor *node, + unused const char *annotation) +{ + // We always accept annotations, but never act on them. + return true; +} + +int main(int argc, char **argv) +{ + if (argc != 3) { + fputs("Convert a human-readable flashmap descriptor (fmd) file into the binary FMAP format for use in firmware images\n", + stderr); + fprintf(stderr, + "USAGE: %s <fmd input file> <binary output file>\n", + argv[0]); + fprintf(stderr, + "To read from standard input, provide '%s' as the input filename.\n", + STDIN_FILENAME_SENTINEL); + return FMAPTOOL_EXIT_BAD_ARGS; + } + const char *fmd_filename = argv[1]; + const char *fmap_filename = argv[2]; + + FILE *fmd_file = stdin; + if (strcmp(fmd_filename, STDIN_FILENAME_SENTINEL) != 0) { + fmd_file = fopen(fmd_filename, "r"); + if (!fmd_file) { + fprintf(stderr, "FATAL: Unable to open file '%s'\n", + fmd_filename); + return FMAPTOOL_EXIT_BAD_INPUT_PATH; + } + } + + struct flashmap_descriptor *descriptor = fmd_create(fmd_file); + fclose(fmd_file); + if (!descriptor) { + fputs("FATAL: Failed while processing provided descriptor\n", + stderr); + return FMAPTOOL_EXIT_FAILED_DESCRIPTOR; + } + + struct fmap *flashmap = fmap_from_fmd(descriptor); + if (!flashmap) { + fputs("FATAL: Failed while constructing FMAP section\n", + stderr); + fmd_cleanup(descriptor); + return FMAPTOOL_EXIT_FAILED_FMAP_CONVERSION; + } + + int size = fmap_size(flashmap); + if (size < 0) { + fputs("FATAL: Failed to determine FMAP section size\n", + stderr); + fmap_destroy(flashmap); + fmd_cleanup(descriptor); + return FMAPTOOL_EXIT_UNKNOWN_FMAP_SIZE; + } + + FILE *fmap_file = fopen(fmap_filename, "wb"); + if (!fmap_file) { + fprintf(stderr, "FATAL: Unable to open file '%s' for writing\n", + fmap_filename); + fmap_destroy(flashmap); + fmd_cleanup(descriptor); + return FMAPTOOL_EXIT_BAD_OUTPUT_PATH; + } + + if (!fwrite(flashmap, size, 1, fmap_file)) { + fputs("FATAL: Failed to write final FMAP to file\n", stderr); + fclose(fmap_file); + fmap_destroy(flashmap); + fmd_cleanup(descriptor); + return FMAPTOOL_EXIT_FAILED_WRITING_FILE; + } + fclose(fmap_file); + printf("SUCCESS: Wrote %d bytes to file '%s'\n", size, fmap_filename); + + fmap_destroy(flashmap); + fmd_cleanup(descriptor); + return FMAPTOOL_EXIT_SUCCESS; +} diff --git a/util/cbfstool/fmd.c b/util/cbfstool/fmd.c new file mode 100644 index 0000000..bfce049 --- /dev/null +++ b/util/cbfstool/fmd.c @@ -0,0 +1,401 @@ +/* + * fmd.c, parser frontend and utility functions for flashmap descriptor language + * + * Copyright (C) 2015 Google, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ + +#include "fmd.h" + +#include "fmd_parser.h" +#include "fmd_scanner.h" +#include "option.h" + +#include <assert.h> +#include <search.h> +#include <string.h> + +/* + * Validate the given flashmap descriptor node's properties. In particular: + * - Ensure its name is globally unique. + * - Ensure its offset, if known, isn't located before the end of the previous + * section, if this can be determined. + * - Ensure its offset, if known, isn't located after the beginning of the next + * section or off the end of its parent section, if this can be determined. + * - Ensure its size is nonzero. + * - Ensure that the combination of its size and offset, if they are both + * known, doesn't place its end after the beginning of the next section or + * off the end of its parent section, if this can be determined. + * In the case of a validation error, the particular problem is reported to + * standard error and this function returns false. It should be noted that this + * function makes no claim that the members of the node's child list are valid: + * under no circumstances is any recursive validation performed. + * + * @param node The flashmap descriptor node to be validated + * @param start Optional minimum permissible base of the section to be + * validated, to be provided if known + * @param end Optional maximum permissible offset to the end of the section to + * be validated, to be provided if known + * @return Whether the node is valid + */ +static bool validate_descriptor_node(const struct flashmap_descriptor *node, + struct unsigned_option start, struct unsigned_option end) { + assert(node); + + ENTRY search_key = {node->name, NULL}; + if (hsearch(search_key, FIND)) { + fprintf(stderr, "ERROR: Multiple sections with name '%s'\n", + node->name); + return false; + } + if (!hsearch(search_key, ENTER)) + assert(false); + + if (node->offset_known) { + if (start.val_known && node->offset < start.val) { + fprintf(stderr, "ERROR: Section '%s' starts too low\n", + node->name); + return false; + } else if (end.val_known && node->offset > end.val) { + fprintf(stderr, "ERROR: Section '%s' starts too high\n", + node->name); + return false; + } + } + + if (node->size_known) { + if (node->size == 0) { + fprintf(stderr, "ERROR: Section '%s' given no space\n", + node->name); + return false; + } else if (node->offset_known) { + unsigned node_end = node->offset + node->size; + if (end.val_known && node_end > end.val) { + fprintf(stderr, "ERROR: Section '%s' too big\n", + node->name); + return false; + } + } + } + + return true; +} + +/* + * Performs reverse lateral processing of sibling nodes, as described by the + * documentation of its caller, validate_and_complete_info(). If it encounters + * a node that is invalid in a way that couldn't have been discovered earlier, + * it explains the problem to standard output and returns false. + * + * @param first_incomplete_it First node whose offset or size couldn't be + * determined during forward processing + * @param cur_incomplete_it Last node whose offset or size is unknown + * @param end_watermark Offset to the end of the unresolved region + * @return Whether all completed nodes were still valid + */ +static bool complete_missing_info_backward( + flashmap_descriptor_iterator_t first_incomplete_it, + flashmap_descriptor_iterator_t cur_incomplete_it, + unsigned end_watermark) +{ + assert(first_incomplete_it); + assert(cur_incomplete_it); + assert(cur_incomplete_it >= first_incomplete_it); + + do { + struct flashmap_descriptor *cur = *cur_incomplete_it; + + assert(cur->offset_known || cur->size_known); + if (!cur->offset_known) { + if (cur->size > end_watermark) { + fprintf(stderr, "ERROR: Section '%s' too big\n", + cur->name); + return false; + } + cur->offset_known = true; + cur->offset = end_watermark -= cur->size; + } else if (!cur->size_known) { + if (cur->offset > end_watermark) { + fprintf(stderr, + "ERROR: Section '%s' starts too high\n", + cur->name); + return false; + } + cur->size_known = true; + cur->size = end_watermark - cur->offset; + end_watermark = cur->offset; + } + } while (--cur_incomplete_it >= first_incomplete_it); + + return true; +} + +/* + * Recursively examine each descendant of the provided flashmap descriptor node + * to ensure its position and size are known, attempt to infer them otherwise, + * and validate their values once they've been populated. + * This processes nodes according to the following algorithm: + * - At each level of the tree, it moves laterally between siblings, keeping + * a watermark of its current offset relative to the previous section, which + * it uses to fill in any unknown offsets it encounters along the way. + * - The first time it encounters a sibling with unknown size, it loses track + * of the watermark, and is therefore unable to complete further offsets; + * instead, if the watermark was known before, it marks the current node as + * the first that couldn't be completed in the initial pass. + * - If the current watermark is unknown (i.e. a node has been marked as the + * first incomplete one) and one with a fixed offset is encountered, a + * reverse lateral traversal is dispatched that uses that provided offset as + * a reverse watermark to complete all unknown fields until it finishes with + * the node marked as the first incomplete one: at this point, that flag is + * cleared, the watermark is updated, and forward processing resumes from + * where it left off. + * - If the watermark is unknown (i.e. node(s) are incomplete) after traversing + * all children of a particular parent node, reverse processing is employed + * as described above, except that the reverse watermark is initialized to + * the parent node's size instead of the (nonexistent) next node's offset. + * - Once all of a node's children have been processed, the algorithm applies + * itself recursively to each of the child nodes; thus, lower levels of the + * tree are processed only after their containing levels are finished. + * This approach can fail in two possible ways (in which case the problem is + * reported to standard output and this function returns false): + * - Processing reveals that some node's provided value is invalid in some way. + * - Processing determines that one or more provided values require an omitted + * field to take a nonsensical value. + * - Processing determines that it is impossible to determine a group of + * omitted values. This state is detected when a node whose offset *and* + * value are omitted is encountered during forward processing and while the + * current watermark is unknown: in such a case, neither can be known without + * being provided with either the other or more context. + * The function notably performs neither validation nor completion on the parent + * node it is passed; thus, it is important to ensure that that node is valid. + * (At the very least, it must have a valid size field in order for the + * algorithm to work on its children.) + * + * @param cur_level Parent node, which must minimally already have a valid size + * @return Whether completing and validating the children succeeded + */ +static bool validate_and_complete_info(struct flashmap_descriptor *cur_level) +{ + assert(cur_level); + assert(cur_level->size_known); + + // Our watermark is only known when first_incomplete_it is NULL. + flashmap_descriptor_iterator_t first_incomplete_it = NULL; + unsigned watermark = 0; + + fmd_foreach_child_iterator(cur_it, cur_level) { + struct flashmap_descriptor *cur_section = *cur_it; + + if (first_incomplete_it) { + if (cur_section->offset_known) { + if (complete_missing_info_backward( + first_incomplete_it, cur_it - 1, + cur_section->offset)) { + first_incomplete_it = NULL; + watermark = cur_section->offset; + } else { + return false; + } + } + // Otherwise, we can't go back until a provided offset. + } else if (!cur_section->offset_known) { + cur_section->offset_known = true; + cur_section->offset = watermark; + } + + assert(cur_level->size_known); + struct unsigned_option max_endpoint = {true, cur_level->size}; + if (cur_it != cur_level->list + cur_level->list_len - 1) { + struct flashmap_descriptor *next_section = cur_it[1]; + max_endpoint.val_known = next_section->offset_known; + max_endpoint.val = next_section->offset; + } + if (!validate_descriptor_node(cur_section, + (struct unsigned_option) + {!first_incomplete_it, watermark}, + max_endpoint)) + return false; + + if (!cur_section->size_known) { + if (!cur_section->offset_known) { + fprintf(stderr, + "ERROR: Cannot determine either offset or size of section '%s'\n", + cur_section->name); + return false; + } else if (!first_incomplete_it) { + first_incomplete_it = cur_it; + } else { + // We shouldn't find an unknown size within an + // incomplete region because the backward + // traversal at the beginning of this node's + // processing should have concluded said region. + assert(!first_incomplete_it); + } + } else if (!first_incomplete_it) { + watermark = cur_section->offset + cur_section->size; + } + } + + if (first_incomplete_it && + !complete_missing_info_backward(first_incomplete_it, + cur_level->list + cur_level->list_len - 1, + cur_level->size)) + return false; + + fmd_foreach_child(cur_section, cur_level) { + assert(cur_section->offset_known); + assert(cur_section->size_known); + + if (!validate_and_complete_info(cur_section)) + return false; + } + + return true; +} + +static void print_with_prefix(const struct flashmap_descriptor *tree, + const char *pre) +{ + assert(tree); + assert(pre); + + printf("%ssection '%s' has ", pre, tree->name); + + if (tree->offset_known) + printf("offset %uB, ", tree->offset); + else + fputs("unknown offset, ", stdout); + + if (tree->size_known) + printf("size %uB, ", tree->size); + else + fputs("unknown size, ", stdout); + + printf("and %zu subsections", tree->list_len); + if (tree->list_len) { + puts(":"); + + char child_prefix[strlen(pre) + 1]; + strcpy(child_prefix, pre); + strcat(child_prefix, "\t"); + fmd_foreach_child(each, tree) + print_with_prefix(each, child_prefix); + } else { + puts(""); + } +} + +struct flashmap_descriptor *fmd_create(FILE *stream) +{ + assert(stream); + + yyin = stream; + + struct flashmap_descriptor *ret = NULL; + if (yyparse() == 0) + ret = res; + + yylex_destroy(); + yyin = NULL; + res = NULL; + + if (ret) { + // This hash table is used to store the declared name of each + // section and ensure that each is globally unique. + if (!hcreate(fmd_count_nodes(ret))) { + perror("ERROR: While initializing hashtable"); + fmd_cleanup(ret); + return NULL; + } + + // Even though we haven't checked that the root node (ret) has + // a size field as required by this function, the parser + // warrants that it does because the grammar requires it. + if (!validate_and_complete_info(ret)) { + hdestroy(); + fmd_cleanup(ret); + return NULL; + } + + hdestroy(); + } + + return ret; +} + +void fmd_cleanup(struct flashmap_descriptor *victim) +{ + if (!victim) + return; + + free(victim->name); + for (unsigned idx = 0; idx < victim->list_len; ++idx) + fmd_cleanup(victim->list[idx]); + free(victim->list); + free(victim); +} + +size_t fmd_count_nodes(const struct flashmap_descriptor *tree) +{ + assert(tree); + + if (!tree->list_len) + return 1; + + unsigned count = 1; + fmd_foreach_child(lower, tree) + count += fmd_count_nodes(lower); + return count; +} + +const struct flashmap_descriptor *fmd_find_node( + const struct flashmap_descriptor *root, const char *name) +{ + assert(root); + assert(name); + + if (strcmp(root->name, name) == 0) + return root; + + fmd_foreach_child(descendant, root) { + const struct flashmap_descriptor *match = + fmd_find_node(descendant, name); + if (match) + return match; + } + return NULL; +} + +unsigned fmd_calc_absolute_offset(const struct flashmap_descriptor *root, + const char *name) +{ + assert(root); + assert(name); + + if (strcmp(root->name, name) == 0) + return 0; + + fmd_foreach_child(descendant, root) { + unsigned subtotal = fmd_calc_absolute_offset(descendant, name); + if (subtotal != FMD_NOTFOUND) + return descendant->offset + subtotal; + } + return FMD_NOTFOUND; +} + +void fmd_print(const struct flashmap_descriptor *tree) +{ + print_with_prefix(tree, ""); +} diff --git a/util/cbfstool/fmd.h b/util/cbfstool/fmd.h new file mode 100644 index 0000000..ff54cbf --- /dev/null +++ b/util/cbfstool/fmd.h @@ -0,0 +1,143 @@ +/* + * fmd.h, parser frontend and utility functions for flashmap descriptor language + * + * Copyright (C) 2015 Google, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ + +#ifndef FMD_H_ +#define FMD_H_ + +#include <limits.h> +#include <stdbool.h> +#include <stddef.h> +#include <stdio.h> + +#define FMD_NOTFOUND UINT_MAX + +struct flashmap_descriptor { + char *name; + bool offset_known; + /** + * Offset relative to that of the parent node. + * Exception: for the root node in the descriptor tree, it is optional. + * In this case, if absent, it indicates that the flash chip will not be + * memory mapped at runtime; otherwise, its value indicates the base + * address of the flash chip in the virtual address space rather than + * representing an offset into the flash image itself. + * It is an error to read this field unless offset_known is set. + */ + unsigned offset; + bool size_known; + /** It is an error to read this field unless size_known is set. */ + unsigned size; + size_t list_len; + /** It is an error to dereference this array if list_len is 0. */ + struct flashmap_descriptor **list; +}; + +/** + * **Client-defined** callback. + * This call is used to notify client code that the user has annotated the given + * section node by accompanying it with a string enclosed in parentheses. It is + * only invoked for nodes that have annotations, and then only once per node. + * The annotations' syntactic validity and semantic meaning are not determined + * by the compiler; rather, implementations of this function should use their + * return type to tell the compiler whether the annotation was valid syntax, as + * well as perform whatever actions are necessary given the particular + * annotation. It's worth reiterating that this is only called on section nodes, + * and will never be called with the final, complete flashmap_descriptor because + * it is impossible to annotate the image as a whole. Note that, although the + * node received by this function will be preserved in memory as part of the + * ultimate flashmap_descriptor, the annotation string will only persist during + * this function call: if the implementation needs it longer, it must copy it. + * + * @param flashmap_descriptor The section node carrying the annotation + * @param annotation What the user wrote (only valid during callback) + * @return Whether this annotation represented valid syntax + */ +bool fmd_process_annotation_impl(const struct flashmap_descriptor *node, + const char *annotation); + +/** + * Parse and validate a flashmap descriptor from the specified stream. + * As part of this process, any fields that were omitted in the input are + * inferred from whatever information is known, if possible. The result is a + * tree with all its offset and size fields filled, except possibly the former + * part of the root node in the case of non--memory mapped flash. If a syntax + * error causes the parser to fail, or if there is not enough information given + * in the input file to determine any single missing value, the specific error + * is reported to standard error and this function returns NULL. + * + * @param stream File from which to read the (partial) flashmap descriptor + * @return Populated flashmap descriptor tree, or NULL on failure + */ +struct flashmap_descriptor *fmd_create(FILE *stream); + +/** @param victim Valid descriptor tree to be cleaned up, or NULL for no-op */ +void fmd_cleanup(struct flashmap_descriptor *victim); + +/** + * @param tree Must be non-NULL + * @return The number of nodes in the tree, including the root + */ +size_t fmd_count_nodes(const struct flashmap_descriptor *tree); + +/** + * @param root The flashmap descriptor to search + * @param name The name of the sought-after section + * @return The desired section node, or NULL if none was found + */ +const struct flashmap_descriptor *fmd_find_node( + const struct flashmap_descriptor *root, const char *name); + +/** + * @param root Parent node to whose start the "absolute" offset will be relative + * @param name The name of the node whose offset to determine + * @return The "absolute" offset, or FMD_NOTFOUND if the node wasn't found + */ +unsigned fmd_calc_absolute_offset(const struct flashmap_descriptor *root, + const char *name); + +/** @param tree Must be non-NULL */ +void fmd_print(const struct flashmap_descriptor *tree); + +typedef struct flashmap_descriptor **flashmap_descriptor_iterator_t; + +/* + * Run the subsequent statement once on each descendant of the specified node. + * + * @param iterator A flashmap_descriptor_iterator_t (automatically declared) + * @param parent The parent node of those over which the loop should iterate + */ +#define fmd_foreach_child_iterator(iterator, parent) \ + for (flashmap_descriptor_iterator_t iterator = parent->list; \ + iterator < parent->list + parent->list_len; ++iterator) + +/* + * Run the subsequent statement once on each descendant of the specified node. + * + * @param child A struct flashmap_descriptor * (automatically declared) + * @param parent The parent node of those over which the loop should iterate + */ +#define fmd_foreach_child(child, parent) \ + for (struct flashmap_descriptor **fmd_foreach_child_iterator_ = \ + parent->list, *child = NULL; \ + fmd_foreach_child_iterator_ < \ + parent->list + parent->list_len && \ + (child = *fmd_foreach_child_iterator_); \ + ++fmd_foreach_child_iterator_) + +#endif diff --git a/util/cbfstool/fmd_parser.c b/util/cbfstool/fmd_parser.c new file mode 100644 index 0000000..d97e743 --- /dev/null +++ b/util/cbfstool/fmd_parser.c @@ -0,0 +1,1647 @@ +/* A Bison parser, made by GNU Bison 3.0.2. */ + +/* Bison implementation for Yacc-like parsers in C + + Copyright (C) 1984, 1989-1990, 2000-2013 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see http://www.gnu.org/licenses/. */ + +/* As a special exception, you may create a larger work that contains + part or all of the Bison parser skeleton and distribute that work + under terms of your choice, so long as that work isn't itself a + parser generator using the skeleton or a modified version thereof + as a parser skeleton. Alternatively, if you modify or redistribute + the parser skeleton itself, you may (at your option) remove this + special exception, which will cause the skeleton and the resulting + Bison output files to be licensed under the GNU General Public + License without this special exception. + + This special exception was added by the Free Software Foundation in + version 2.2 of Bison. */ + +/* C LALR(1) parser skeleton written by Richard Stallman, by + simplifying the original so-called "semantic" parser. */ + +/* All symbols defined below should begin with yy or YY, to avoid + infringing on user name space. This should be done even for local + variables, as they might otherwise be expanded by user macros. + There are some unavoidable exceptions within include files to + define necessary library symbols; they are noted "INFRINGES ON + USER NAME SPACE" below. */ + +/* Identify Bison output. */ +#define YYBISON 1 + +/* Bison version. */ +#define YYBISON_VERSION "3.0.2" + +/* Skeleton name. */ +#define YYSKELETON_NAME "yacc.c" + +/* Pure parsers. */ +#define YYPURE 0 + +/* Push parsers. */ +#define YYPUSH 0 + +/* Pull parsers. */ +#define YYPULL 1 + + + + +/* Copy the first part of user declarations. */ +#line 20 "fmd_parser.y" /* yacc.c:339 */ + +#include "fmd_scanner.h" + +#include <stdlib.h> + +struct flashmap_descriptor *res = NULL; + +#line 74 "y.tab.c" /* yacc.c:339 */ + +# ifndef YY_NULLPTR +# if defined __cplusplus && 201103L <= __cplusplus +# define YY_NULLPTR nullptr +# else +# define YY_NULLPTR 0 +# endif +# endif + +/* Enabling verbose error messages. */ +#ifdef YYERROR_VERBOSE +# undef YYERROR_VERBOSE +# define YYERROR_VERBOSE 1 +#else +# define YYERROR_VERBOSE 0 +#endif + +/* In a future release of Bison, this section will be replaced + by #include "y.tab.h". */ +#ifndef YY_YY_Y_TAB_H_INCLUDED +# define YY_YY_Y_TAB_H_INCLUDED +/* Debug traces. */ +#ifndef YYDEBUG +# define YYDEBUG 0 +#endif +#if YYDEBUG +extern int yydebug; +#endif +/* "%code requires" blocks. */ +#line 36 "fmd_parser.y" /* yacc.c:355 */ + +#include "fmd.h" +#include "option.h" + +#include <stdbool.h> + +struct descriptor_node { + struct flashmap_descriptor *val; + struct descriptor_node *next; +}; + +struct descriptor_list { + size_t len; + struct descriptor_node *head; + struct descriptor_node *tail; +}; + +extern struct flashmap_descriptor *res; + +struct flashmap_descriptor *parse_descriptor(char *name, + struct unsigned_option offset, struct unsigned_option size, + struct descriptor_list children); +void yyerror(const char *s); + +#line 129 "y.tab.c" /* yacc.c:355 */ + +/* Token type. */ +#ifndef YYTOKENTYPE +# define YYTOKENTYPE + enum yytokentype + { + INTEGER = 258, + OCTAL = 259, + STRING = 260 + }; +#endif +/* Tokens. */ +#define INTEGER 258 +#define OCTAL 259 +#define STRING 260 + +/* Value type. */ +#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED +typedef union YYSTYPE YYSTYPE; +union YYSTYPE +{ +#line 28 "fmd_parser.y" /* yacc.c:355 */ + + unsigned intval; + char *strval; + struct unsigned_option maybe_intval; + struct flashmap_descriptor *region_ptr; + struct descriptor_list region_listhdr; + +#line 159 "y.tab.c" /* yacc.c:355 */ +}; +# define YYSTYPE_IS_TRIVIAL 1 +# define YYSTYPE_IS_DECLARED 1 +#endif + + +extern YYSTYPE yylval; + +int yyparse (void); + +#endif /* !YY_YY_Y_TAB_H_INCLUDED */ + +/* Copy the second part of user declarations. */ + +#line 174 "y.tab.c" /* yacc.c:358 */ + +#ifdef short +# undef short +#endif + +#ifdef YYTYPE_UINT8 +typedef YYTYPE_UINT8 yytype_uint8; +#else +typedef unsigned char yytype_uint8; +#endif + +#ifdef YYTYPE_INT8 +typedef YYTYPE_INT8 yytype_int8; +#else +typedef signed char yytype_int8; +#endif + +#ifdef YYTYPE_UINT16 +typedef YYTYPE_UINT16 yytype_uint16; +#else +typedef unsigned short int yytype_uint16; +#endif + +#ifdef YYTYPE_INT16 +typedef YYTYPE_INT16 yytype_int16; +#else +typedef short int yytype_int16; +#endif + +#ifndef YYSIZE_T +# ifdef __SIZE_TYPE__ +# define YYSIZE_T __SIZE_TYPE__ +# elif defined size_t +# define YYSIZE_T size_t +# elif ! defined YYSIZE_T +# include <stddef.h> /* INFRINGES ON USER NAME SPACE */ +# define YYSIZE_T size_t +# else +# define YYSIZE_T unsigned int +# endif +#endif + +#define YYSIZE_MAXIMUM ((YYSIZE_T) -1) + +#ifndef YY_ +# if defined YYENABLE_NLS && YYENABLE_NLS +# if ENABLE_NLS +# include <libintl.h> /* INFRINGES ON USER NAME SPACE */ +# define YY_(Msgid) dgettext ("bison-runtime", Msgid) +# endif +# endif +# ifndef YY_ +# define YY_(Msgid) Msgid +# endif +#endif + +#ifndef YY_ATTRIBUTE +# if (defined __GNUC__ \ + && (2 < __GNUC__ || (__GNUC__ == 2 && 96 <= __GNUC_MINOR__))) \ + || defined __SUNPRO_C && 0x5110 <= __SUNPRO_C +# define YY_ATTRIBUTE(Spec) __attribute__(Spec) +# else +# define YY_ATTRIBUTE(Spec) /* empty */ +# endif +#endif + +#ifndef YY_ATTRIBUTE_PURE +# define YY_ATTRIBUTE_PURE YY_ATTRIBUTE ((__pure__)) +#endif + +#ifndef YY_ATTRIBUTE_UNUSED +# define YY_ATTRIBUTE_UNUSED YY_ATTRIBUTE ((__unused__)) +#endif + +#if !defined _Noreturn \ + && (!defined __STDC_VERSION__ || __STDC_VERSION__ < 201112) +# if defined _MSC_VER && 1200 <= _MSC_VER +# define _Noreturn __declspec (noreturn) +# else +# define _Noreturn YY_ATTRIBUTE ((__noreturn__)) +# endif +#endif + +/* Suppress unused-variable warnings by "using" E. */ +#if ! defined lint || defined __GNUC__ +# define YYUSE(E) ((void) (E)) +#else +# define YYUSE(E) /* empty */ +#endif + +#if defined __GNUC__ && 407 <= __GNUC__ * 100 + __GNUC_MINOR__ +/* Suppress an incorrect diagnostic about yylval being uninitialized. */ +# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN \ + _Pragma ("GCC diagnostic push") \ + _Pragma ("GCC diagnostic ignored "-Wuninitialized"")\ + _Pragma ("GCC diagnostic ignored "-Wmaybe-uninitialized"") +# define YY_IGNORE_MAYBE_UNINITIALIZED_END \ + _Pragma ("GCC diagnostic pop") +#else +# define YY_INITIAL_VALUE(Value) Value +#endif +#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN +# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN +# define YY_IGNORE_MAYBE_UNINITIALIZED_END +#endif +#ifndef YY_INITIAL_VALUE +# define YY_INITIAL_VALUE(Value) /* Nothing. */ +#endif + + +#if ! defined yyoverflow || YYERROR_VERBOSE + +/* The parser invokes alloca or malloc; define the necessary symbols. */ + +# ifdef YYSTACK_USE_ALLOCA +# if YYSTACK_USE_ALLOCA +# ifdef __GNUC__ +# define YYSTACK_ALLOC __builtin_alloca +# elif defined __BUILTIN_VA_ARG_INCR +# include <alloca.h> /* INFRINGES ON USER NAME SPACE */ +# elif defined _AIX +# define YYSTACK_ALLOC __alloca +# elif defined _MSC_VER +# include <malloc.h> /* INFRINGES ON USER NAME SPACE */ +# define alloca _alloca +# else +# define YYSTACK_ALLOC alloca +# if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS +# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */ + /* Use EXIT_SUCCESS as a witness for stdlib.h. */ +# ifndef EXIT_SUCCESS +# define EXIT_SUCCESS 0 +# endif +# endif +# endif +# endif +# endif + +# ifdef YYSTACK_ALLOC + /* Pacify GCC's 'empty if-body' warning. */ +# define YYSTACK_FREE(Ptr) do { /* empty */; } while (0) +# ifndef YYSTACK_ALLOC_MAXIMUM + /* The OS might guarantee only one guard page at the bottom of the stack, + and a page size can be as small as 4096 bytes. So we cannot safely + invoke alloca (N) if N exceeds 4096. Use a slightly smaller number + to allow for a few compiler-allocated temporary stack slots. */ +# define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */ +# endif +# else +# define YYSTACK_ALLOC YYMALLOC +# define YYSTACK_FREE YYFREE +# ifndef YYSTACK_ALLOC_MAXIMUM +# define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM +# endif +# if (defined __cplusplus && ! defined EXIT_SUCCESS \ + && ! ((defined YYMALLOC || defined malloc) \ + && (defined YYFREE || defined free))) +# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */ +# ifndef EXIT_SUCCESS +# define EXIT_SUCCESS 0 +# endif +# endif +# ifndef YYMALLOC +# define YYMALLOC malloc +# if ! defined malloc && ! defined EXIT_SUCCESS +void *malloc (YYSIZE_T); /* INFRINGES ON USER NAME SPACE */ +# endif +# endif +# ifndef YYFREE +# define YYFREE free +# if ! defined free && ! defined EXIT_SUCCESS +void free (void *); /* INFRINGES ON USER NAME SPACE */ +# endif +# endif +# endif +#endif /* ! defined yyoverflow || YYERROR_VERBOSE */ + + +#if (! defined yyoverflow \ + && (! defined __cplusplus \ + || (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL))) + +/* A type that is properly aligned for any stack member. */ +union yyalloc +{ + yytype_int16 yyss_alloc; + YYSTYPE yyvs_alloc; +}; + +/* The size of the maximum gap between one aligned stack and the next. */ +# define YYSTACK_GAP_MAXIMUM (sizeof (union yyalloc) - 1) + +/* The size of an array large to enough to hold all stacks, each with + N elements. */ +# define YYSTACK_BYTES(N) \ + ((N) * (sizeof (yytype_int16) + sizeof (YYSTYPE)) \ + + YYSTACK_GAP_MAXIMUM) + +# define YYCOPY_NEEDED 1 + +/* Relocate STACK from its old location to the new one. The + local variables YYSIZE and YYSTACKSIZE give the old and new number of + elements in the stack, and YYPTR gives the new location of the + stack. Advance YYPTR to a properly aligned location for the next + stack. */ +# define YYSTACK_RELOCATE(Stack_alloc, Stack) \ + do \ + { \ + YYSIZE_T yynewbytes; \ + YYCOPY (&yyptr->Stack_alloc, Stack, yysize); \ + Stack = &yyptr->Stack_alloc; \ + yynewbytes = yystacksize * sizeof (*Stack) + YYSTACK_GAP_MAXIMUM; \ + yyptr += yynewbytes / sizeof (*yyptr); \ + } \ + while (0) + +#endif + +#if defined YYCOPY_NEEDED && YYCOPY_NEEDED +/* Copy COUNT objects from SRC to DST. The source and destination do + not overlap. */ +# ifndef YYCOPY +# if defined __GNUC__ && 1 < __GNUC__ +# define YYCOPY(Dst, Src, Count) \ + __builtin_memcpy (Dst, Src, (Count) * sizeof (*(Src))) +# else +# define YYCOPY(Dst, Src, Count) \ + do \ + { \ + YYSIZE_T yyi; \ + for (yyi = 0; yyi < (Count); yyi++) \ + (Dst)[yyi] = (Src)[yyi]; \ + } \ + while (0) +# endif +# endif +#endif /* !YYCOPY_NEEDED */ + +/* YYFINAL -- State number of the termination state. */ +#define YYFINAL 4 +/* YYLAST -- Last index in YYTABLE. */ +#define YYLAST 17 + +/* YYNTOKENS -- Number of terminals. */ +#define YYNTOKENS 11 +/* YYNNTS -- Number of nonterminals. */ +#define YYNNTS 13 +/* YYNRULES -- Number of rules. */ +#define YYNRULES 18 +/* YYNSTATES -- Number of states. */ +#define YYNSTATES 28 + +/* YYTRANSLATE[YYX] -- Symbol number corresponding to YYX as returned + by yylex, with out-of-bounds checking. */ +#define YYUNDEFTOK 2 +#define YYMAXUTOK 260 + +#define YYTRANSLATE(YYX) \ + ((unsigned int) (YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK) + +/* YYTRANSLATE[TOKEN-NUM] -- Symbol number corresponding to TOKEN-NUM + as returned by yylex, without out-of-bounds checking. */ +static const yytype_uint8 yytranslate[] = +{ + 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 6, 7, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 8, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 9, 2, 10, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 1, 2, 3, 4, + 5 +}; + +#if YYDEBUG + /* YYRLINE[YYN] -- Source line where rule number YYN was defined. */ +static const yytype_uint8 yyrline[] = +{ + 0, 79, 79, 84, 101, 108, 109, 110, 111, 112, + 113, 114, 115, 116, 118, 122, 123, 124, 135 +}; +#endif + +#if YYDEBUG || YYERROR_VERBOSE || 0 +/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. + First, the terminals, then, starting at YYNTOKENS, nonterminals. */ +static const char *const yytname[] = +{ + "$end", "error", "$undefined", "INTEGER", "OCTAL", "STRING", "'('", + "')'", "'@'", "'{'", "'}'", "$accept", "flash_chip", "flash_region", + "region_name", "region_annotation_opt", "region_annotation", + "region_offset_opt", "region_offset", "region_size_opt", "region_size", + "region_list_opt", "region_list", "region_list_entries", YY_NULLPTR +}; +#endif + +# ifdef YYPRINT +/* YYTOKNUM[NUM] -- (External) token number corresponding to the + (internal) symbol number NUM (which must be that of a token). */ +static const yytype_uint16 yytoknum[] = +{ + 0, 256, 257, 258, 259, 260, 40, 41, 64, 123, + 125 +}; +# endif + +#define YYPACT_NINF -10 + +#define yypact_value_is_default(Yystate) \ + (!!((Yystate) == (-10))) + +#define YYTABLE_NINF -1 + +#define yytable_value_is_error(Yytable_value) \ + 0 + + /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing + STATE-NUM. */ +static const yytype_int8 yypact[] = +{ + -4, -10, 2, -2, -10, 0, 1, -10, -10, -10, + -1, -4, -10, -10, 3, -5, 5, -2, -10, -10, + -10, 4, 1, -10, -1, -10, -10, -10 +}; + + /* YYDEFACT[STATE-NUM] -- Default reduction number in state STATE-NUM. + Performed when YYTABLE does not specify something else to do. Zero + means the default is an error. */ +static const yytype_uint8 yydefact[] = +{ + 0, 4, 0, 8, 1, 0, 0, 9, 10, 13, + 0, 0, 2, 17, 5, 0, 0, 8, 6, 16, + 18, 0, 11, 7, 14, 12, 3, 15 +}; + + /* YYPGOTO[NTERM-NUM]. */ +static const yytype_int8 yypgoto[] = +{ + -10, -10, -8, 12, -10, -10, -3, -10, -10, -9, + -10, -7, -10 +}; + + /* YYDEFGOTO[NTERM-NUM]. */ +static const yytype_int8 yydefgoto[] = +{ + -1, 2, 13, 14, 17, 18, 6, 7, 24, 10, + 26, 12, 15 +}; + + /* YYTABLE[YYPACT[STATE-NUM]] -- What to do in state STATE-NUM. If + positive, shift that token. If negative, reduce the rule whose + number is the opposite. If YYTABLE_NINF, syntax error. */ +static const yytype_uint8 yytable[] = +{ + 1, 1, 4, 8, 9, 19, 5, 20, 11, 16, + 21, 23, 3, 25, 22, 0, 0, 27 +}; + +static const yytype_int8 yycheck[] = +{ + 5, 5, 0, 3, 3, 10, 8, 15, 9, 6, + 5, 7, 0, 22, 17, -1, -1, 24 +}; + + /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing + symbol of state STATE-NUM. */ +static const yytype_uint8 yystos[] = +{ + 0, 5, 12, 14, 0, 8, 17, 18, 3, 3, + 20, 9, 22, 13, 14, 23, 6, 15, 16, 10, + 13, 5, 17, 7, 19, 20, 21, 22 +}; + + /* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ +static const yytype_uint8 yyr1[] = +{ + 0, 11, 12, 13, 14, 15, 15, 16, 17, 17, + 18, 19, 19, 20, 21, 21, 22, 23, 23 +}; + + /* YYR2[YYN] -- Number of symbols on the right hand side of rule YYN. */ +static const yytype_uint8 yyr2[] = +{ + 0, 2, 4, 5, 1, 0, 1, 3, 0, 1, + 2, 0, 1, 1, 0, 1, 3, 1, 2 +}; + + +#define yyerrok (yyerrstatus = 0) +#define yyclearin (yychar = YYEMPTY) +#define YYEMPTY (-2) +#define YYEOF 0 + +#define YYACCEPT goto yyacceptlab +#define YYABORT goto yyabortlab +#define YYERROR goto yyerrorlab + + +#define YYRECOVERING() (!!yyerrstatus) + +#define YYBACKUP(Token, Value) \ +do \ + if (yychar == YYEMPTY) \ + { \ + yychar = (Token); \ + yylval = (Value); \ + YYPOPSTACK (yylen); \ + yystate = *yyssp; \ + goto yybackup; \ + } \ + else \ + { \ + yyerror (YY_("syntax error: cannot back up")); \ + YYERROR; \ + } \ +while (0) + +/* Error token number */ +#define YYTERROR 1 +#define YYERRCODE 256 + + + +/* Enable debugging if requested. */ +#if YYDEBUG + +# ifndef YYFPRINTF +# include <stdio.h> /* INFRINGES ON USER NAME SPACE */ +# define YYFPRINTF fprintf +# endif + +# define YYDPRINTF(Args) \ +do { \ + if (yydebug) \ + YYFPRINTF Args; \ +} while (0) + +/* This macro is provided for backward compatibility. */ +#ifndef YY_LOCATION_PRINT +# define YY_LOCATION_PRINT(File, Loc) ((void) 0) +#endif + + +# define YY_SYMBOL_PRINT(Title, Type, Value, Location) \ +do { \ + if (yydebug) \ + { \ + YYFPRINTF (stderr, "%s ", Title); \ + yy_symbol_print (stderr, \ + Type, Value); \ + YYFPRINTF (stderr, "\n"); \ + } \ +} while (0) + + +/*----------------------------------------. +| Print this symbol's value on YYOUTPUT. | +`----------------------------------------*/ + +static void +yy_symbol_value_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep) +{ + FILE *yyo = yyoutput; + YYUSE (yyo); + if (!yyvaluep) + return; +# ifdef YYPRINT + if (yytype < YYNTOKENS) + YYPRINT (yyoutput, yytoknum[yytype], *yyvaluep); +# endif + YYUSE (yytype); +} + + +/*--------------------------------. +| Print this symbol on YYOUTPUT. | +`--------------------------------*/ + +static void +yy_symbol_print (FILE *yyoutput, int yytype, YYSTYPE const * const yyvaluep) +{ + YYFPRINTF (yyoutput, "%s %s (", + yytype < YYNTOKENS ? "token" : "nterm", yytname[yytype]); + + yy_symbol_value_print (yyoutput, yytype, yyvaluep); + YYFPRINTF (yyoutput, ")"); +} + +/*------------------------------------------------------------------. +| yy_stack_print -- Print the state stack from its BOTTOM up to its | +| TOP (included). | +`------------------------------------------------------------------*/ + +static void +yy_stack_print (yytype_int16 *yybottom, yytype_int16 *yytop) +{ + YYFPRINTF (stderr, "Stack now"); + for (; yybottom <= yytop; yybottom++) + { + int yybot = *yybottom; + YYFPRINTF (stderr, " %d", yybot); + } + YYFPRINTF (stderr, "\n"); +} + +# define YY_STACK_PRINT(Bottom, Top) \ +do { \ + if (yydebug) \ + yy_stack_print ((Bottom), (Top)); \ +} while (0) + + +/*------------------------------------------------. +| Report that the YYRULE is going to be reduced. | +`------------------------------------------------*/ + +static void +yy_reduce_print (yytype_int16 *yyssp, YYSTYPE *yyvsp, int yyrule) +{ + unsigned long int yylno = yyrline[yyrule]; + int yynrhs = yyr2[yyrule]; + int yyi; + YYFPRINTF (stderr, "Reducing stack by rule %d (line %lu):\n", + yyrule - 1, yylno); + /* The symbols being reduced. */ + for (yyi = 0; yyi < yynrhs; yyi++) + { + YYFPRINTF (stderr, " $%d = ", yyi + 1); + yy_symbol_print (stderr, + yystos[yyssp[yyi + 1 - yynrhs]], + &(yyvsp[(yyi + 1) - (yynrhs)]) + ); + YYFPRINTF (stderr, "\n"); + } +} + +# define YY_REDUCE_PRINT(Rule) \ +do { \ + if (yydebug) \ + yy_reduce_print (yyssp, yyvsp, Rule); \ +} while (0) + +/* Nonzero means print parse trace. It is left uninitialized so that + multiple parsers can coexist. */ +int yydebug; +#else /* !YYDEBUG */ +# define YYDPRINTF(Args) +# define YY_SYMBOL_PRINT(Title, Type, Value, Location) +# define YY_STACK_PRINT(Bottom, Top) +# define YY_REDUCE_PRINT(Rule) +#endif /* !YYDEBUG */ + + +/* YYINITDEPTH -- initial size of the parser's stacks. */ +#ifndef YYINITDEPTH +# define YYINITDEPTH 200 +#endif + +/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only + if the built-in stack extension method is used). + + Do not make this value too large; the results are undefined if + YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH) + evaluated with infinite-precision integer arithmetic. */ + +#ifndef YYMAXDEPTH +# define YYMAXDEPTH 10000 +#endif + + +#if YYERROR_VERBOSE + +# ifndef yystrlen +# if defined __GLIBC__ && defined _STRING_H +# define yystrlen strlen +# else +/* Return the length of YYSTR. */ +static YYSIZE_T +yystrlen (const char *yystr) +{ + YYSIZE_T yylen; + for (yylen = 0; yystr[yylen]; yylen++) + continue; + return yylen; +} +# endif +# endif + +# ifndef yystpcpy +# if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE +# define yystpcpy stpcpy +# else +/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in + YYDEST. */ +static char * +yystpcpy (char *yydest, const char *yysrc) +{ + char *yyd = yydest; + const char *yys = yysrc; + + while ((*yyd++ = *yys++) != '\0') + continue; + + return yyd - 1; +} +# endif +# endif + +# ifndef yytnamerr +/* Copy to YYRES the contents of YYSTR after stripping away unnecessary + quotes and backslashes, so that it's suitable for yyerror. The + heuristic is that double-quoting is unnecessary unless the string + contains an apostrophe, a comma, or backslash (other than + backslash-backslash). YYSTR is taken from yytname. If YYRES is + null, do not copy; instead, return the length of what the result + would have been. */ +static YYSIZE_T +yytnamerr (char *yyres, const char *yystr) +{ + if (*yystr == '"') + { + YYSIZE_T yyn = 0; + char const *yyp = yystr; + + for (;;) + switch (*++yyp) + { + case ''': + case ',': + goto do_not_strip_quotes; + + case '\': + if (*++yyp != '\') + goto do_not_strip_quotes; + /* Fall through. */ + default: + if (yyres) + yyres[yyn] = *yyp; + yyn++; + break; + + case '"': + if (yyres) + yyres[yyn] = '\0'; + return yyn; + } + do_not_strip_quotes: ; + } + + if (! yyres) + return yystrlen (yystr); + + return yystpcpy (yyres, yystr) - yyres; +} +# endif + +/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message + about the unexpected token YYTOKEN for the state stack whose top is + YYSSP. + + Return 0 if *YYMSG was successfully written. Return 1 if *YYMSG is + not large enough to hold the message. In that case, also set + *YYMSG_ALLOC to the required number of bytes. Return 2 if the + required number of bytes is too large to store. */ +static int +yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg, + yytype_int16 *yyssp, int yytoken) +{ + YYSIZE_T yysize0 = yytnamerr (YY_NULLPTR, yytname[yytoken]); + YYSIZE_T yysize = yysize0; + enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 }; + /* Internationalized format string. */ + const char *yyformat = YY_NULLPTR; + /* Arguments of yyformat. */ + char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM]; + /* Number of reported tokens (one for the "unexpected", one per + "expected"). */ + int yycount = 0; + + /* There are many possibilities here to consider: + - If this state is a consistent state with a default action, then + the only way this function was invoked is if the default action + is an error action. In that case, don't check for expected + tokens because there are none. + - The only way there can be no lookahead present (in yychar) is if + this state is a consistent state with a default action. Thus, + detecting the absence of a lookahead is sufficient to determine + that there is no unexpected or expected token to report. In that + case, just report a simple "syntax error". + - Don't assume there isn't a lookahead just because this state is a + consistent state with a default action. There might have been a + previous inconsistent state, consistent state with a non-default + action, or user semantic action that manipulated yychar. + - Of course, the expected token list depends on states to have + correct lookahead information, and it depends on the parser not + to perform extra reductions after fetching a lookahead from the + scanner and before detecting a syntax error. Thus, state merging + (from LALR or IELR) and default reductions corrupt the expected + token list. However, the list is correct for canonical LR with + one exception: it will still contain any token that will not be + accepted due to an error action in a later state. + */ + if (yytoken != YYEMPTY) + { + int yyn = yypact[*yyssp]; + yyarg[yycount++] = yytname[yytoken]; + if (!yypact_value_is_default (yyn)) + { + /* Start YYX at -YYN if negative to avoid negative indexes in + YYCHECK. In other words, skip the first -YYN actions for + this state because they are default actions. */ + int yyxbegin = yyn < 0 ? -yyn : 0; + /* Stay within bounds of both yycheck and yytname. */ + int yychecklim = YYLAST - yyn + 1; + int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS; + int yyx; + + for (yyx = yyxbegin; yyx < yyxend; ++yyx) + if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR + && !yytable_value_is_error (yytable[yyx + yyn])) + { + if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM) + { + yycount = 1; + yysize = yysize0; + break; + } + yyarg[yycount++] = yytname[yyx]; + { + YYSIZE_T yysize1 = yysize + yytnamerr (YY_NULLPTR, yytname[yyx]); + if (! (yysize <= yysize1 + && yysize1 <= YYSTACK_ALLOC_MAXIMUM)) + return 2; + yysize = yysize1; + } + } + } + } + + switch (yycount) + { +# define YYCASE_(N, S) \ + case N: \ + yyformat = S; \ + break + YYCASE_(0, YY_("syntax error")); + YYCASE_(1, YY_("syntax error, unexpected %s")); + YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s")); + YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s")); + YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s")); + YYCASE_(5, YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s")); +# undef YYCASE_ + } + + { + YYSIZE_T yysize1 = yysize + yystrlen (yyformat); + if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM)) + return 2; + yysize = yysize1; + } + + if (*yymsg_alloc < yysize) + { + *yymsg_alloc = 2 * yysize; + if (! (yysize <= *yymsg_alloc + && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM)) + *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM; + return 1; + } + + /* Avoid sprintf, as that infringes on the user's name space. + Don't have undefined behavior even if the translation + produced a string with the wrong number of "%s"s. */ + { + char *yyp = *yymsg; + int yyi = 0; + while ((*yyp = *yyformat) != '\0') + if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount) + { + yyp += yytnamerr (yyp, yyarg[yyi++]); + yyformat += 2; + } + else + { + yyp++; + yyformat++; + } + } + return 0; +} +#endif /* YYERROR_VERBOSE */ + +/*-----------------------------------------------. +| Release the memory associated to this symbol. | +`-----------------------------------------------*/ + +static void +yydestruct (const char *yymsg, int yytype, YYSTYPE *yyvaluep) +{ + YYUSE (yyvaluep); + if (!yymsg) + yymsg = "Deleting"; + YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp); + + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + YYUSE (yytype); + YY_IGNORE_MAYBE_UNINITIALIZED_END +} + + + + +/* The lookahead symbol. */ +int yychar; + +/* The semantic value of the lookahead symbol. */ +YYSTYPE yylval; +/* Number of syntax errors so far. */ +int yynerrs; + + +/*----------. +| yyparse. | +`----------*/ + +int +yyparse (void) +{ + int yystate; + /* Number of tokens to shift before error messages enabled. */ + int yyerrstatus; + + /* The stacks and their tools: + 'yyss': related to states. + 'yyvs': related to semantic values. + + Refer to the stacks through separate pointers, to allow yyoverflow + to reallocate them elsewhere. */ + + /* The state stack. */ + yytype_int16 yyssa[YYINITDEPTH]; + yytype_int16 *yyss; + yytype_int16 *yyssp; + + /* The semantic value stack. */ + YYSTYPE yyvsa[YYINITDEPTH]; + YYSTYPE *yyvs; + YYSTYPE *yyvsp; + + YYSIZE_T yystacksize; + + int yyn; + int yyresult; + /* Lookahead token as an internal (translated) token number. */ + int yytoken = 0; + /* The variables used to return semantic value and location from the + action routines. */ + YYSTYPE yyval; + +#if YYERROR_VERBOSE + /* Buffer for error messages, and its allocated size. */ + char yymsgbuf[128]; + char *yymsg = yymsgbuf; + YYSIZE_T yymsg_alloc = sizeof yymsgbuf; +#endif + +#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N)) + + /* The number of symbols on the RHS of the reduced rule. + Keep to zero when no symbol should be popped. */ + int yylen = 0; + + yyssp = yyss = yyssa; + yyvsp = yyvs = yyvsa; + yystacksize = YYINITDEPTH; + + YYDPRINTF ((stderr, "Starting parse\n")); + + yystate = 0; + yyerrstatus = 0; + yynerrs = 0; + yychar = YYEMPTY; /* Cause a token to be read. */ + goto yysetstate; + +/*------------------------------------------------------------. +| yynewstate -- Push a new state, which is found in yystate. | +`------------------------------------------------------------*/ + yynewstate: + /* In all cases, when you get here, the value and location stacks + have just been pushed. So pushing a state here evens the stacks. */ + yyssp++; + + yysetstate: + *yyssp = yystate; + + if (yyss + yystacksize - 1 <= yyssp) + { + /* Get the current used size of the three stacks, in elements. */ + YYSIZE_T yysize = yyssp - yyss + 1; + +#ifdef yyoverflow + { + /* Give user a chance to reallocate the stack. Use copies of + these so that the &'s don't force the real ones into + memory. */ + YYSTYPE *yyvs1 = yyvs; + yytype_int16 *yyss1 = yyss; + + /* Each stack pointer address is followed by the size of the + data in use in that stack, in bytes. This used to be a + conditional around just the two extra args, but that might + be undefined if yyoverflow is a macro. */ + yyoverflow (YY_("memory exhausted"), + &yyss1, yysize * sizeof (*yyssp), + &yyvs1, yysize * sizeof (*yyvsp), + &yystacksize); + + yyss = yyss1; + yyvs = yyvs1; + } +#else /* no yyoverflow */ +# ifndef YYSTACK_RELOCATE + goto yyexhaustedlab; +# else + /* Extend the stack our own way. */ + if (YYMAXDEPTH <= yystacksize) + goto yyexhaustedlab; + yystacksize *= 2; + if (YYMAXDEPTH < yystacksize) + yystacksize = YYMAXDEPTH; + + { + yytype_int16 *yyss1 = yyss; + union yyalloc *yyptr = + (union yyalloc *) YYSTACK_ALLOC (YYSTACK_BYTES (yystacksize)); + if (! yyptr) + goto yyexhaustedlab; + YYSTACK_RELOCATE (yyss_alloc, yyss); + YYSTACK_RELOCATE (yyvs_alloc, yyvs); +# undef YYSTACK_RELOCATE + if (yyss1 != yyssa) + YYSTACK_FREE (yyss1); + } +# endif +#endif /* no yyoverflow */ + + yyssp = yyss + yysize - 1; + yyvsp = yyvs + yysize - 1; + + YYDPRINTF ((stderr, "Stack size increased to %lu\n", + (unsigned long int) yystacksize)); + + if (yyss + yystacksize - 1 <= yyssp) + YYABORT; + } + + YYDPRINTF ((stderr, "Entering state %d\n", yystate)); + + if (yystate == YYFINAL) + YYACCEPT; + + goto yybackup; + +/*-----------. +| yybackup. | +`-----------*/ +yybackup: + + /* Do appropriate processing given the current state. Read a + lookahead token if we need one and don't already have one. */ + + /* First try to decide what to do without reference to lookahead token. */ + yyn = yypact[yystate]; + if (yypact_value_is_default (yyn)) + goto yydefault; + + /* Not known => get a lookahead token if don't already have one. */ + + /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */ + if (yychar == YYEMPTY) + { + YYDPRINTF ((stderr, "Reading a token: ")); + yychar = yylex (); + } + + if (yychar <= YYEOF) + { + yychar = yytoken = YYEOF; + YYDPRINTF ((stderr, "Now at end of input.\n")); + } + else + { + yytoken = YYTRANSLATE (yychar); + YY_SYMBOL_PRINT ("Next token is", yytoken, &yylval, &yylloc); + } + + /* If the proper action on seeing token YYTOKEN is to reduce or to + detect an error, take that action. */ + yyn += yytoken; + if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) + goto yydefault; + yyn = yytable[yyn]; + if (yyn <= 0) + { + if (yytable_value_is_error (yyn)) + goto yyerrlab; + yyn = -yyn; + goto yyreduce; + } + + /* Count tokens shifted since error; after three, turn off error + status. */ + if (yyerrstatus) + yyerrstatus--; + + /* Shift the lookahead token. */ + YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc); + + /* Discard the shifted token. */ + yychar = YYEMPTY; + + yystate = yyn; + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + *++yyvsp = yylval; + YY_IGNORE_MAYBE_UNINITIALIZED_END + + goto yynewstate; + + +/*-----------------------------------------------------------. +| yydefault -- do the default action for the current state. | +`-----------------------------------------------------------*/ +yydefault: + yyn = yydefact[yystate]; + if (yyn == 0) + goto yyerrlab; + goto yyreduce; + + +/*-----------------------------. +| yyreduce -- Do a reduction. | +`-----------------------------*/ +yyreduce: + /* yyn is the number of a rule to reduce with. */ + yylen = yyr2[yyn]; + + /* If YYLEN is nonzero, implement the default value of the action: + '$$ = $1'. + + Otherwise, the following line sets YYVAL to garbage. + This behavior is undocumented and Bison + users should not rely upon it. Assigning to YYVAL + unconditionally makes the parser a bit smaller, and it avoids a + GCC warning that YYVAL may be used uninitialized. */ + yyval = yyvsp[1-yylen]; + + + YY_REDUCE_PRINT (yyn); + switch (yyn) + { + case 2: +#line 80 "fmd_parser.y" /* yacc.c:1646 */ + { + if (!(res = parse_descriptor((yyvsp[-3].strval), (yyvsp[-2].maybe_intval), (yyvsp[-1].maybe_intval), (yyvsp[0].region_listhdr)))) + YYABORT; +} +#line 1260 "y.tab.c" /* yacc.c:1646 */ + break; + + case 3: +#line 86 "fmd_parser.y" /* yacc.c:1646 */ + { + struct flashmap_descriptor *node = parse_descriptor((yyvsp[-4].strval), (yyvsp[-2].maybe_intval), (yyvsp[-1].maybe_intval), (yyvsp[0].region_listhdr)); + if (!node) + YYABORT; + + char *annotation = (yyvsp[-3].strval); + if (annotation && !fmd_process_annotation_impl(node, annotation)) { + fprintf(stderr, "ERROR: Section '%s' has unexpected annotation '(%s)'\n", + node->name, annotation); + YYABORT; + } + free(annotation); + + (yyval.region_ptr) = node; +} +#line 1280 "y.tab.c" /* yacc.c:1646 */ + break; + + case 4: +#line 102 "fmd_parser.y" /* yacc.c:1646 */ + { + if (!(yyvsp[0].strval)) { + perror("ERROR: While allocating section name"); + YYABORT; + } +} +#line 1291 "y.tab.c" /* yacc.c:1646 */ + break; + + case 5: +#line 108 "fmd_parser.y" /* yacc.c:1646 */ + { (yyval.strval) = NULL; } +#line 1297 "y.tab.c" /* yacc.c:1646 */ + break; + + case 7: +#line 110 "fmd_parser.y" /* yacc.c:1646 */ + { (yyval.strval) = (yyvsp[-1].strval); } +#line 1303 "y.tab.c" /* yacc.c:1646 */ + break; + + case 8: +#line 111 "fmd_parser.y" /* yacc.c:1646 */ + { (yyval.maybe_intval) = (struct unsigned_option){false, 0}; } +#line 1309 "y.tab.c" /* yacc.c:1646 */ + break; + + case 10: +#line 113 "fmd_parser.y" /* yacc.c:1646 */ + { (yyval.maybe_intval) = (struct unsigned_option){true, (yyvsp[0].intval)}; } +#line 1315 "y.tab.c" /* yacc.c:1646 */ + break; + + case 11: +#line 114 "fmd_parser.y" /* yacc.c:1646 */ + { (yyval.maybe_intval) = (struct unsigned_option){false, 0}; } +#line 1321 "y.tab.c" /* yacc.c:1646 */ + break; + + case 13: +#line 116 "fmd_parser.y" /* yacc.c:1646 */ + { (yyval.maybe_intval) = (struct unsigned_option){true, (yyvsp[0].intval)}; } +#line 1327 "y.tab.c" /* yacc.c:1646 */ + break; + + case 14: +#line 118 "fmd_parser.y" /* yacc.c:1646 */ + { + (yyval.region_listhdr) = (struct descriptor_list) + {.len = 0, .head = NULL, .tail = NULL}; +} +#line 1336 "y.tab.c" /* yacc.c:1646 */ + break; + + case 16: +#line 123 "fmd_parser.y" /* yacc.c:1646 */ + { (yyval.region_listhdr) = (yyvsp[-1].region_listhdr); } +#line 1342 "y.tab.c" /* yacc.c:1646 */ + break; + + case 17: +#line 125 "fmd_parser.y" /* yacc.c:1646 */ + { + struct descriptor_node *node = malloc(sizeof(*node)); + if (!node) { + perror("ERROR: While allocating linked list node"); + YYABORT; + } + node->val = (yyvsp[0].region_ptr); + node->next = NULL; + (yyval.region_listhdr) = (struct descriptor_list){.len = 1, .head = node, .tail = node}; +} +#line 1357 "y.tab.c" /* yacc.c:1646 */ + break; + + case 18: +#line 136 "fmd_parser.y" /* yacc.c:1646 */ + { + struct descriptor_node *node = malloc(sizeof(*node)); + if (!node) { + perror("ERROR: While allocating linked list node"); + YYABORT; + } + node->val = (yyvsp[0].region_ptr); + node->next = NULL; + + (yyvsp[-1].region_listhdr).tail->next = node; + (yyval.region_listhdr) = (struct descriptor_list) + {.len = (yyvsp[-1].region_listhdr).len + 1, .head = (yyvsp[-1].region_listhdr).head, .tail = node}; +} +#line 1375 "y.tab.c" /* yacc.c:1646 */ + break; + + +#line 1379 "y.tab.c" /* yacc.c:1646 */ + default: break; + } + /* User semantic actions sometimes alter yychar, and that requires + that yytoken be updated with the new translation. We take the + approach of translating immediately before every use of yytoken. + One alternative is translating here after every semantic action, + but that translation would be missed if the semantic action invokes + YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or + if it invokes YYBACKUP. In the case of YYABORT or YYACCEPT, an + incorrect destructor might then be invoked immediately. In the + case of YYERROR or YYBACKUP, subsequent parser actions might lead + to an incorrect destructor call or verbose syntax error message + before the lookahead is translated. */ + YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc); + + YYPOPSTACK (yylen); + yylen = 0; + YY_STACK_PRINT (yyss, yyssp); + + *++yyvsp = yyval; + + /* Now 'shift' the result of the reduction. Determine what state + that goes to, based on the state we popped back to and the rule + number reduced by. */ + + yyn = yyr1[yyn]; + + yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; + if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp) + yystate = yytable[yystate]; + else + yystate = yydefgoto[yyn - YYNTOKENS]; + + goto yynewstate; + + +/*--------------------------------------. +| yyerrlab -- here on detecting error. | +`--------------------------------------*/ +yyerrlab: + /* Make sure we have latest lookahead translation. See comments at + user semantic actions for why this is necessary. */ + yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE (yychar); + + /* If not already recovering from an error, report this error. */ + if (!yyerrstatus) + { + ++yynerrs; +#if ! YYERROR_VERBOSE + yyerror (YY_("syntax error")); +#else +# define YYSYNTAX_ERROR yysyntax_error (&yymsg_alloc, &yymsg, \ + yyssp, yytoken) + { + char const *yymsgp = YY_("syntax error"); + int yysyntax_error_status; + yysyntax_error_status = YYSYNTAX_ERROR; + if (yysyntax_error_status == 0) + yymsgp = yymsg; + else if (yysyntax_error_status == 1) + { + if (yymsg != yymsgbuf) + YYSTACK_FREE (yymsg); + yymsg = (char *) YYSTACK_ALLOC (yymsg_alloc); + if (!yymsg) + { + yymsg = yymsgbuf; + yymsg_alloc = sizeof yymsgbuf; + yysyntax_error_status = 2; + } + else + { + yysyntax_error_status = YYSYNTAX_ERROR; + yymsgp = yymsg; + } + } + yyerror (yymsgp); + if (yysyntax_error_status == 2) + goto yyexhaustedlab; + } +# undef YYSYNTAX_ERROR +#endif + } + + + + if (yyerrstatus == 3) + { + /* If just tried and failed to reuse lookahead token after an + error, discard it. */ + + if (yychar <= YYEOF) + { + /* Return failure if at end of input. */ + if (yychar == YYEOF) + YYABORT; + } + else + { + yydestruct ("Error: discarding", + yytoken, &yylval); + yychar = YYEMPTY; + } + } + + /* Else will try to reuse lookahead token after shifting the error + token. */ + goto yyerrlab1; + + +/*---------------------------------------------------. +| yyerrorlab -- error raised explicitly by YYERROR. | +`---------------------------------------------------*/ +yyerrorlab: + + /* Pacify compilers like GCC when the user code never invokes + YYERROR and the label yyerrorlab therefore never appears in user + code. */ + if (/*CONSTCOND*/ 0) + goto yyerrorlab; + + /* Do not reclaim the symbols of the rule whose action triggered + this YYERROR. */ + YYPOPSTACK (yylen); + yylen = 0; + YY_STACK_PRINT (yyss, yyssp); + yystate = *yyssp; + goto yyerrlab1; + + +/*-------------------------------------------------------------. +| yyerrlab1 -- common code for both syntax error and YYERROR. | +`-------------------------------------------------------------*/ +yyerrlab1: + yyerrstatus = 3; /* Each real token shifted decrements this. */ + + for (;;) + { + yyn = yypact[yystate]; + if (!yypact_value_is_default (yyn)) + { + yyn += YYTERROR; + if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) + { + yyn = yytable[yyn]; + if (0 < yyn) + break; + } + } + + /* Pop the current state because it cannot handle the error token. */ + if (yyssp == yyss) + YYABORT; + + + yydestruct ("Error: popping", + yystos[yystate], yyvsp); + YYPOPSTACK (1); + yystate = *yyssp; + YY_STACK_PRINT (yyss, yyssp); + } + + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + *++yyvsp = yylval; + YY_IGNORE_MAYBE_UNINITIALIZED_END + + + /* Shift the error token. */ + YY_SYMBOL_PRINT ("Shifting", yystos[yyn], yyvsp, yylsp); + + yystate = yyn; + goto yynewstate; + + +/*-------------------------------------. +| yyacceptlab -- YYACCEPT comes here. | +`-------------------------------------*/ +yyacceptlab: + yyresult = 0; + goto yyreturn; + +/*-----------------------------------. +| yyabortlab -- YYABORT comes here. | +`-----------------------------------*/ +yyabortlab: + yyresult = 1; + goto yyreturn; + +#if !defined yyoverflow || YYERROR_VERBOSE +/*-------------------------------------------------. +| yyexhaustedlab -- memory exhaustion comes here. | +`-------------------------------------------------*/ +yyexhaustedlab: + yyerror (YY_("memory exhausted")); + yyresult = 2; + /* Fall through. */ +#endif + +yyreturn: + if (yychar != YYEMPTY) + { + /* Make sure we have latest lookahead translation. See comments at + user semantic actions for why this is necessary. */ + yytoken = YYTRANSLATE (yychar); + yydestruct ("Cleanup: discarding lookahead", + yytoken, &yylval); + } + /* Do not reclaim the symbols of the rule whose action triggered + this YYABORT or YYACCEPT. */ + YYPOPSTACK (yylen); + YY_STACK_PRINT (yyss, yyssp); + while (yyssp != yyss) + { + yydestruct ("Cleanup: popping", + yystos[*yyssp], yyvsp); + YYPOPSTACK (1); + } +#ifndef yyoverflow + if (yyss != yyssa) + YYSTACK_FREE (yyss); +#endif +#if YYERROR_VERBOSE + if (yymsg != yymsgbuf) + YYSTACK_FREE (yymsg); +#endif + return yyresult; +} +#line 150 "fmd_parser.y" /* yacc.c:1906 */ + + +struct flashmap_descriptor *parse_descriptor(char *name, + struct unsigned_option offset, struct unsigned_option size, + struct descriptor_list children) +{ + struct flashmap_descriptor *region = malloc(sizeof(*region)); + if (!region) { + perror("ERROR: While allocating descriptor section"); + return NULL; + } + region->name = name; + region->offset_known = offset.val_known; + region->offset = offset.val; + region->size_known = size.val_known; + region->size = size.val; + region->list_len = children.len; + if (region->list_len) { + region->list = malloc(region->list_len * sizeof(*region->list)); + if (!region->list) { + perror("ERROR: While allocating node children array"); + return NULL; + } + struct descriptor_node *cur_node = children.head; + for (unsigned idx = 0; idx < region->list_len; ++idx) { + region->list[idx] = cur_node->val; + + struct descriptor_node *next_node = cur_node->next; + free(cur_node); + cur_node = next_node; + } + } else { + region->list = NULL; + } + return region; +} + +void yyerror(const char *s) +{ + fprintf(stderr, "%s\n", s); +} diff --git a/util/cbfstool/fmd_parser.h b/util/cbfstool/fmd_parser.h new file mode 100644 index 0000000..393a8ff --- /dev/null +++ b/util/cbfstool/fmd_parser.h @@ -0,0 +1,109 @@ +/* A Bison parser, made by GNU Bison 3.0.2. */ + +/* Bison interface for Yacc-like parsers in C + + Copyright (C) 1984, 1989-1990, 2000-2013 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see http://www.gnu.org/licenses/. */ + +/* As a special exception, you may create a larger work that contains + part or all of the Bison parser skeleton and distribute that work + under terms of your choice, so long as that work isn't itself a + parser generator using the skeleton or a modified version thereof + as a parser skeleton. Alternatively, if you modify or redistribute + the parser skeleton itself, you may (at your option) remove this + special exception, which will cause the skeleton and the resulting + Bison output files to be licensed under the GNU General Public + License without this special exception. + + This special exception was added by the Free Software Foundation in + version 2.2 of Bison. */ + +#ifndef YY_YY_Y_TAB_H_INCLUDED +# define YY_YY_Y_TAB_H_INCLUDED +/* Debug traces. */ +#ifndef YYDEBUG +# define YYDEBUG 0 +#endif +#if YYDEBUG +extern int yydebug; +#endif +/* "%code requires" blocks. */ +#line 36 "fmd_parser.y" /* yacc.c:1909 */ + +#include "fmd.h" +#include "option.h" + +#include <stdbool.h> + +struct descriptor_node { + struct flashmap_descriptor *val; + struct descriptor_node *next; +}; + +struct descriptor_list { + size_t len; + struct descriptor_node *head; + struct descriptor_node *tail; +}; + +extern struct flashmap_descriptor *res; + +struct flashmap_descriptor *parse_descriptor(char *name, + struct unsigned_option offset, struct unsigned_option size, + struct descriptor_list children); +void yyerror(const char *s); + +#line 69 "y.tab.h" /* yacc.c:1909 */ + +/* Token type. */ +#ifndef YYTOKENTYPE +# define YYTOKENTYPE + enum yytokentype + { + INTEGER = 258, + OCTAL = 259, + STRING = 260 + }; +#endif +/* Tokens. */ +#define INTEGER 258 +#define OCTAL 259 +#define STRING 260 + +/* Value type. */ +#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED +typedef union YYSTYPE YYSTYPE; +union YYSTYPE +{ +#line 28 "fmd_parser.y" /* yacc.c:1909 */ + + unsigned intval; + char *strval; + struct unsigned_option maybe_intval; + struct flashmap_descriptor *region_ptr; + struct descriptor_list region_listhdr; + +#line 99 "y.tab.h" /* yacc.c:1909 */ +}; +# define YYSTYPE_IS_TRIVIAL 1 +# define YYSTYPE_IS_DECLARED 1 +#endif + + +extern YYSTYPE yylval; + +int yyparse (void); + +#endif /* !YY_YY_Y_TAB_H_INCLUDED */ diff --git a/util/cbfstool/fmd_parser.y b/util/cbfstool/fmd_parser.y new file mode 100644 index 0000000..292fba3 --- /dev/null +++ b/util/cbfstool/fmd_parser.y @@ -0,0 +1,190 @@ +/* + * fmd_parser.y, parser generator for flashmap descriptor language + * + * Copyright (C) 2015 Google, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ + +%{ +#include "fmd_scanner.h" + +#include <stdlib.h> + +struct flashmap_descriptor *res = NULL; +%} + +%union { + unsigned intval; + char *strval; + struct unsigned_option maybe_intval; + struct flashmap_descriptor *region_ptr; + struct descriptor_list region_listhdr; +} + +%code requires { +#include "fmd.h" +#include "option.h" + +#include <stdbool.h> + +struct descriptor_node { + struct flashmap_descriptor *val; + struct descriptor_node *next; +}; + +struct descriptor_list { + size_t len; + struct descriptor_node *head; + struct descriptor_node *tail; +}; + +extern struct flashmap_descriptor *res; + +struct flashmap_descriptor *parse_descriptor(char *name, + struct unsigned_option offset, struct unsigned_option size, + struct descriptor_list children); +void yyerror(const char *s); +} + +%token <intval> INTEGER +%token OCTAL +%token <strval> STRING + +%type <region_ptr> flash_region +%type <strval> region_name +%type <strval> region_annotation_opt +%type <strval> region_annotation +%type <maybe_intval> region_offset_opt +%type <maybe_intval> region_offset +%type <maybe_intval> region_size_opt +%type <maybe_intval> region_size +%type <region_listhdr> region_list_opt +%type <region_listhdr> region_list +%type <region_listhdr> region_list_entries + +%% + +flash_chip: region_name region_offset_opt region_size region_list +{ + if (!(res = parse_descriptor($1, $2, $3, $4))) + YYABORT; +}; +flash_region: region_name region_annotation_opt region_offset_opt + region_size_opt region_list_opt +{ + struct flashmap_descriptor *node = parse_descriptor($1, $3, $4, $5); + if (!node) + YYABORT; + + char *annotation = $2; + if (annotation && !fmd_process_annotation_impl(node, annotation)) { + fprintf(stderr, "ERROR: Section '%s' has unexpected annotation '(%s)'\n", + node->name, annotation); + YYABORT; + } + free(annotation); + + $$ = node; +}; +region_name: STRING +{ + if (!$1) { + perror("ERROR: While allocating section name"); + YYABORT; + } +}; +region_annotation_opt: { $$ = NULL; } + | region_annotation; +region_annotation: '(' STRING ')' { $$ = $2; }; +region_offset_opt: { $$ = (struct unsigned_option){false, 0}; } + | region_offset; +region_offset: '@' INTEGER { $$ = (struct unsigned_option){true, $2}; }; +region_size_opt: { $$ = (struct unsigned_option){false, 0}; } + | region_size; +region_size: INTEGER { $$ = (struct unsigned_option){true, $1}; }; +region_list_opt: +{ + $$ = (struct descriptor_list) + {.len = 0, .head = NULL, .tail = NULL}; +} + | region_list; +region_list: '{' region_list_entries '}' { $$ = $2; }; +region_list_entries: flash_region +{ + struct descriptor_node *node = malloc(sizeof(*node)); + if (!node) { + perror("ERROR: While allocating linked list node"); + YYABORT; + } + node->val = $1; + node->next = NULL; + $$ = (struct descriptor_list){.len = 1, .head = node, .tail = node}; +} + | region_list_entries flash_region +{ + struct descriptor_node *node = malloc(sizeof(*node)); + if (!node) { + perror("ERROR: While allocating linked list node"); + YYABORT; + } + node->val = $2; + node->next = NULL; + + $1.tail->next = node; + $$ = (struct descriptor_list) + {.len = $1.len + 1, .head = $1.head, .tail = node}; +}; + +%% + +struct flashmap_descriptor *parse_descriptor(char *name, + struct unsigned_option offset, struct unsigned_option size, + struct descriptor_list children) +{ + struct flashmap_descriptor *region = malloc(sizeof(*region)); + if (!region) { + perror("ERROR: While allocating descriptor section"); + return NULL; + } + region->name = name; + region->offset_known = offset.val_known; + region->offset = offset.val; + region->size_known = size.val_known; + region->size = size.val; + region->list_len = children.len; + if (region->list_len) { + region->list = malloc(region->list_len * sizeof(*region->list)); + if (!region->list) { + perror("ERROR: While allocating node children array"); + return NULL; + } + struct descriptor_node *cur_node = children.head; + for (unsigned idx = 0; idx < region->list_len; ++idx) { + region->list[idx] = cur_node->val; + + struct descriptor_node *next_node = cur_node->next; + free(cur_node); + cur_node = next_node; + } + } else { + region->list = NULL; + } + return region; +} + +void yyerror(const char *s) +{ + fprintf(stderr, "%s\n", s); +} diff --git a/util/cbfstool/fmd_scanner.c b/util/cbfstool/fmd_scanner.c new file mode 100644 index 0000000..d0d93d3 --- /dev/null +++ b/util/cbfstool/fmd_scanner.c @@ -0,0 +1,1852 @@ + +#line 3 "<stdout>" + +#define YY_INT_ALIGNED short int + +/* A lexical scanner generated by flex */ + +#define FLEX_SCANNER +#define YY_FLEX_MAJOR_VERSION 2 +#define YY_FLEX_MINOR_VERSION 5 +#define YY_FLEX_SUBMINOR_VERSION 39 +#if YY_FLEX_SUBMINOR_VERSION > 0 +#define FLEX_BETA +#endif + +/* First, we deal with platform-specific or compiler-specific issues. */ + +/* begin standard C headers. */ +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <stdlib.h> + +/* end standard C headers. */ + +/* flex integer type definitions */ + +#ifndef FLEXINT_H +#define FLEXINT_H + +/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */ + +#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L + +/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h, + * if you want the limit (max/min) macros for int types. + */ +#ifndef __STDC_LIMIT_MACROS +#define __STDC_LIMIT_MACROS 1 +#endif + +#include <inttypes.h> +typedef int8_t flex_int8_t; +typedef uint8_t flex_uint8_t; +typedef int16_t flex_int16_t; +typedef uint16_t flex_uint16_t; +typedef int32_t flex_int32_t; +typedef uint32_t flex_uint32_t; +#else +typedef signed char flex_int8_t; +typedef short int flex_int16_t; +typedef int flex_int32_t; +typedef unsigned char flex_uint8_t; +typedef unsigned short int flex_uint16_t; +typedef unsigned int flex_uint32_t; + +/* Limits of integral types. */ +#ifndef INT8_MIN +#define INT8_MIN (-128) +#endif +#ifndef INT16_MIN +#define INT16_MIN (-32767-1) +#endif +#ifndef INT32_MIN +#define INT32_MIN (-2147483647-1) +#endif +#ifndef INT8_MAX +#define INT8_MAX (127) +#endif +#ifndef INT16_MAX +#define INT16_MAX (32767) +#endif +#ifndef INT32_MAX +#define INT32_MAX (2147483647) +#endif +#ifndef UINT8_MAX +#define UINT8_MAX (255U) +#endif +#ifndef UINT16_MAX +#define UINT16_MAX (65535U) +#endif +#ifndef UINT32_MAX +#define UINT32_MAX (4294967295U) +#endif + +#endif /* ! C99 */ + +#endif /* ! FLEXINT_H */ + +#ifdef __cplusplus + +/* The "const" storage-class-modifier is valid. */ +#define YY_USE_CONST + +#else /* ! __cplusplus */ + +/* C99 requires __STDC__ to be defined as 1. */ +#if defined (__STDC__) + +#define YY_USE_CONST + +#endif /* defined (__STDC__) */ +#endif /* ! __cplusplus */ + +#ifdef YY_USE_CONST +#define yyconst const +#else +#define yyconst +#endif + +/* Returned upon end-of-file. */ +#define YY_NULL 0 + +/* Promotes a possibly negative, possibly signed char to an unsigned + * integer for use as an array index. If the signed char is negative, + * we want to instead treat it as an 8-bit unsigned char, hence the + * double cast. + */ +#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c) + +/* Enter a start condition. This macro really ought to take a parameter, + * but we do it the disgusting crufty way forced on us by the ()-less + * definition of BEGIN. + */ +#define BEGIN (yy_start) = 1 + 2 * + +/* Translate the current start state into a value that can be later handed + * to BEGIN to return to the state. The YYSTATE alias is for lex + * compatibility. + */ +#define YY_START (((yy_start) - 1) / 2) +#define YYSTATE YY_START + +/* Action number for EOF rule of a given start state. */ +#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1) + +/* Special action meaning "start processing a new file". */ +#define YY_NEW_FILE yyrestart(yyin ) + +#define YY_END_OF_BUFFER_CHAR 0 + +/* Size of default input buffer. */ +#ifndef YY_BUF_SIZE +#ifdef __ia64__ +/* On IA-64, the buffer size is 16k, not 8k. + * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case. + * Ditto for the __ia64__ case accordingly. + */ +#define YY_BUF_SIZE 32768 +#else +#define YY_BUF_SIZE 16384 +#endif /* __ia64__ */ +#endif + +/* The state buf must be large enough to hold one state per character in the main buffer. + */ +#define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type)) + +#ifndef YY_TYPEDEF_YY_BUFFER_STATE +#define YY_TYPEDEF_YY_BUFFER_STATE +typedef struct yy_buffer_state *YY_BUFFER_STATE; +#endif + +#ifndef YY_TYPEDEF_YY_SIZE_T +#define YY_TYPEDEF_YY_SIZE_T +typedef size_t yy_size_t; +#endif + +extern yy_size_t yyleng; + +extern FILE *yyin, *yyout; + +#define EOB_ACT_CONTINUE_SCAN 0 +#define EOB_ACT_END_OF_FILE 1 +#define EOB_ACT_LAST_MATCH 2 + + #define YY_LESS_LINENO(n) + #define YY_LINENO_REWIND_TO(ptr) + +/* Return all but the first "n" matched characters back to the input stream. */ +#define yyless(n) \ + do \ + { \ + /* Undo effects of setting up yytext. */ \ + int yyless_macro_arg = (n); \ + YY_LESS_LINENO(yyless_macro_arg);\ + *yy_cp = (yy_hold_char); \ + YY_RESTORE_YY_MORE_OFFSET \ + (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \ + YY_DO_BEFORE_ACTION; /* set up yytext again */ \ + } \ + while ( 0 ) + +#define unput(c) yyunput( c, (yytext_ptr) ) + +#ifndef YY_STRUCT_YY_BUFFER_STATE +#define YY_STRUCT_YY_BUFFER_STATE +struct yy_buffer_state + { + FILE *yy_input_file; + + char *yy_ch_buf; /* input buffer */ + char *yy_buf_pos; /* current position in input buffer */ + + /* Size of input buffer in bytes, not including room for EOB + * characters. + */ + yy_size_t yy_buf_size; + + /* Number of characters read into yy_ch_buf, not including EOB + * characters. + */ + yy_size_t yy_n_chars; + + /* Whether we "own" the buffer - i.e., we know we created it, + * and can realloc() it to grow it, and should free() it to + * delete it. + */ + int yy_is_our_buffer; + + /* Whether this is an "interactive" input source; if so, and + * if we're using stdio for input, then we want to use getc() + * instead of fread(), to make sure we stop fetching input after + * each newline. + */ + int yy_is_interactive; + + /* Whether we're considered to be at the beginning of a line. + * If so, '^' rules will be active on the next match, otherwise + * not. + */ + int yy_at_bol; + + int yy_bs_lineno; /**< The line count. */ + int yy_bs_column; /**< The column count. */ + + /* Whether to try to fill the input buffer when we reach the + * end of it. + */ + int yy_fill_buffer; + + int yy_buffer_status; + +#define YY_BUFFER_NEW 0 +#define YY_BUFFER_NORMAL 1 + /* When an EOF's been seen but there's still some text to process + * then we mark the buffer as YY_EOF_PENDING, to indicate that we + * shouldn't try reading from the input source any more. We might + * still have a bunch of tokens to match, though, because of + * possible backing-up. + * + * When we actually see the EOF, we change the status to "new" + * (via yyrestart()), so that the user can continue scanning by + * just pointing yyin at a new input file. + */ +#define YY_BUFFER_EOF_PENDING 2 + + }; +#endif /* !YY_STRUCT_YY_BUFFER_STATE */ + +/* Stack of input buffers. */ +static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */ +static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */ +static YY_BUFFER_STATE * yy_buffer_stack = 0; /**< Stack as an array. */ + +/* We provide macros for accessing buffer states in case in the + * future we want to put the buffer states in a more general + * "scanner state". + * + * Returns the top of the stack, or NULL. + */ +#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \ + ? (yy_buffer_stack)[(yy_buffer_stack_top)] \ + : NULL) + +/* Same as previous macro, but useful when we know that the buffer stack is not + * NULL or when we need an lvalue. For internal use only. + */ +#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)] + +/* yy_hold_char holds the character lost when yytext is formed. */ +static char yy_hold_char; +static yy_size_t yy_n_chars; /* number of characters read into yy_ch_buf */ +yy_size_t yyleng; + +/* Points to current character in buffer. */ +static char *yy_c_buf_p = (char *) 0; +static int yy_init = 0; /* whether we need to initialize */ +static int yy_start = 0; /* start state number */ + +/* Flag which is used to allow yywrap()'s to do buffer switches + * instead of setting up a fresh yyin. A bit of a hack ... + */ +static int yy_did_buffer_switch_on_eof; + +void yyrestart (FILE *input_file ); +void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ); +YY_BUFFER_STATE yy_create_buffer (FILE *file,int size ); +void yy_delete_buffer (YY_BUFFER_STATE b ); +void yy_flush_buffer (YY_BUFFER_STATE b ); +void yypush_buffer_state (YY_BUFFER_STATE new_buffer ); +void yypop_buffer_state (void ); + +static void yyensure_buffer_stack (void ); +static void yy_load_buffer_state (void ); +static void yy_init_buffer (YY_BUFFER_STATE b,FILE *file ); + +#define YY_FLUSH_BUFFER yy_flush_buffer(YY_CURRENT_BUFFER ) + +YY_BUFFER_STATE yy_scan_buffer (char *base,yy_size_t size ); +YY_BUFFER_STATE yy_scan_string (yyconst char *yy_str ); +YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,yy_size_t len ); + +void *yyalloc (yy_size_t ); +void *yyrealloc (void *,yy_size_t ); +void yyfree (void * ); + +#define yy_new_buffer yy_create_buffer + +#define yy_set_interactive(is_interactive) \ + { \ + if ( ! YY_CURRENT_BUFFER ){ \ + yyensure_buffer_stack (); \ + YY_CURRENT_BUFFER_LVALUE = \ + yy_create_buffer(yyin,YY_BUF_SIZE ); \ + } \ + YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \ + } + +#define yy_set_bol(at_bol) \ + { \ + if ( ! YY_CURRENT_BUFFER ){\ + yyensure_buffer_stack (); \ + YY_CURRENT_BUFFER_LVALUE = \ + yy_create_buffer(yyin,YY_BUF_SIZE ); \ + } \ + YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \ + } + +#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol) + +/* Begin user sect3 */ + +#define yywrap() 1 +#define YY_SKIP_YYWRAP + +typedef unsigned char YY_CHAR; + +FILE *yyin = (FILE *) 0, *yyout = (FILE *) 0; + +typedef int yy_state_type; + +extern int yylineno; + +int yylineno = 1; + +extern char *yytext; +#define yytext_ptr yytext + +static yy_state_type yy_get_previous_state (void ); +static yy_state_type yy_try_NUL_trans (yy_state_type current_state ); +static int yy_get_next_buffer (void ); +static void yy_fatal_error (yyconst char msg[] ); + +/* Done after the current pattern has been matched and before the + * corresponding action - sets up yytext. + */ +#define YY_DO_BEFORE_ACTION \ + (yytext_ptr) = yy_bp; \ + yyleng = (size_t) (yy_cp - yy_bp); \ + (yy_hold_char) = *yy_cp; \ + *yy_cp = '\0'; \ + (yy_c_buf_p) = yy_cp; + +#define YY_NUM_RULES 9 +#define YY_END_OF_BUFFER 10 +/* This struct is not used in this scanner, + but its presence is necessary. */ +struct yy_trans_info + { + flex_int32_t yy_verify; + flex_int32_t yy_nxt; + }; +static yyconst flex_int16_t yy_accept[24] = + { 0, + 7, 7, 10, 7, 1, 1, 8, 8, 3, 4, + 7, 1, 0, 2, 5, 3, 7, 4, 4, 5, + 6, 6, 0 + } ; + +static yyconst flex_int32_t yy_ec[256] = + { 0, + 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, + 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 2, 1, 1, 4, 1, 1, 1, 1, 5, + 5, 1, 1, 1, 1, 1, 1, 6, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, + 1, 1, 1, 5, 1, 1, 1, 1, 1, 1, + 8, 1, 1, 1, 8, 1, 8, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 9, 1, 1, + 1, 1, 1, 1, 1, 1, 10, 10, 10, 10, + + 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, + 1, 1, 5, 1, 5, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1 + } ; + +static yyconst flex_int32_t yy_meta[11] = + { 0, + 1, 2, 2, 3, 3, 1, 1, 1, 1, 1 + } ; + +static yyconst flex_int16_t yy_base[27] = + { 0, + 0, 0, 29, 0, 0, 0, 25, 34, 10, 15, + 0, 0, 12, 34, 16, 0, 20, 0, 0, 0, + 6, 0, 34, 12, 10, 30 + } ; + +static yyconst flex_int16_t yy_def[27] = + { 0, + 23, 1, 23, 24, 25, 25, 26, 23, 23, 24, + 24, 25, 26, 23, 9, 24, 24, 10, 24, 24, + 17, 24, 0, 23, 23, 23 + } ; + +static yyconst flex_int16_t yy_nxt[45] = + { 0, + 4, 5, 6, 7, 8, 9, 10, 4, 4, 4, + 11, 12, 11, 22, 14, 15, 15, 16, 17, 11, + 18, 18, 19, 20, 11, 21, 21, 14, 23, 21, + 13, 13, 13, 3, 23, 23, 23, 23, 23, 23, + 23, 23, 23, 23 + } ; + +static yyconst flex_int16_t yy_chk[45] = + { 0, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 9, 25, 24, 21, 13, 9, 9, 9, 9, 9, + 10, 10, 10, 15, 15, 17, 17, 7, 3, 17, + 26, 26, 26, 23, 23, 23, 23, 23, 23, 23, + 23, 23, 23, 23 + } ; + +static yy_state_type yy_last_accepting_state; +static char *yy_last_accepting_cpos; + +extern int yy_flex_debug; +int yy_flex_debug = 0; + +/* The intent behind this definition is that it'll catch + * any uses of REJECT which flex missed. + */ +#define REJECT reject_used_but_not_detected +#define yymore() yymore_used_but_not_detected +#define YY_MORE_ADJ 0 +#define YY_RESTORE_YY_MORE_OFFSET +char *yytext; +#line 1 "fmd_scanner.l" +/* + * fmd_scanner.l, scanner generator for flashmap descriptor language + * + * Copyright (C) 2015 Google, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ +#line 21 "fmd_scanner.l" +#include "fmd_parser.h" + +#include <assert.h> +#include <string.h> + +int parse_integer(char *input, int base); +int copy_string(const char *input); +#line 502 "<stdout>" + +#define INITIAL 0 + +#ifndef YY_NO_UNISTD_H +/* Special case for "unistd.h", since it is non-ANSI. We include it way + * down here because we want the user's section 1 to have been scanned first. + * The user has a chance to override it with an option. + */ +#include <unistd.h> +#endif + +#ifndef YY_EXTRA_TYPE +#define YY_EXTRA_TYPE void * +#endif + +static int yy_init_globals (void ); + +/* Accessor methods to globals. + These are made visible to non-reentrant scanners for convenience. */ + +int yylex_destroy (void ); + +int yyget_debug (void ); + +void yyset_debug (int debug_flag ); + +YY_EXTRA_TYPE yyget_extra (void ); + +void yyset_extra (YY_EXTRA_TYPE user_defined ); + +FILE *yyget_in (void ); + +void yyset_in (FILE * in_str ); + +FILE *yyget_out (void ); + +void yyset_out (FILE * out_str ); + +yy_size_t yyget_leng (void ); + +char *yyget_text (void ); + +int yyget_lineno (void ); + +void yyset_lineno (int line_number ); + +/* Macros after this point can all be overridden by user definitions in + * section 1. + */ + +#ifndef YY_SKIP_YYWRAP +#ifdef __cplusplus +extern "C" int yywrap (void ); +#else +extern int yywrap (void ); +#endif +#endif + + static void yyunput (int c,char *buf_ptr ); + +#ifndef yytext_ptr +static void yy_flex_strncpy (char *,yyconst char *,int ); +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen (yyconst char * ); +#endif + +#ifndef YY_NO_INPUT + +#ifdef __cplusplus +static int yyinput (void ); +#else +static int input (void ); +#endif + +#endif + +/* Amount of stuff to slurp up with each read. */ +#ifndef YY_READ_BUF_SIZE +#ifdef __ia64__ +/* On IA-64, the buffer size is 16k, not 8k */ +#define YY_READ_BUF_SIZE 16384 +#else +#define YY_READ_BUF_SIZE 8192 +#endif /* __ia64__ */ +#endif + +/* Copy whatever the last rule matched to the standard output. */ +#ifndef ECHO +/* This used to be an fputs(), but since the string might contain NUL's, + * we now use fwrite(). + */ +#define ECHO do { if (fwrite( yytext, yyleng, 1, yyout )) {} } while (0) +#endif + +/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL, + * is returned in "result". + */ +#ifndef YY_INPUT +#define YY_INPUT(buf,result,max_size) \ + if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \ + { \ + int c = '*'; \ + size_t n; \ + for ( n = 0; n < max_size && \ + (c = getc( yyin )) != EOF && c != '\n'; ++n ) \ + buf[n] = (char) c; \ + if ( c == '\n' ) \ + buf[n++] = (char) c; \ + if ( c == EOF && ferror( yyin ) ) \ + YY_FATAL_ERROR( "input in flex scanner failed" ); \ + result = n; \ + } \ + else \ + { \ + errno=0; \ + while ( (result = fread(buf, 1, max_size, yyin))==0 && ferror(yyin)) \ + { \ + if( errno != EINTR) \ + { \ + YY_FATAL_ERROR( "input in flex scanner failed" ); \ + break; \ + } \ + errno=0; \ + clearerr(yyin); \ + } \ + }\ +\ + +#endif + +/* No semi-colon after return; correct usage is to write "yyterminate();" - + * we don't want an extra ';' after the "return" because that will cause + * some compilers to complain about unreachable statements. + */ +#ifndef yyterminate +#define yyterminate() return YY_NULL +#endif + +/* Number of entries by which start-condition stack grows. */ +#ifndef YY_START_STACK_INCR +#define YY_START_STACK_INCR 25 +#endif + +/* Report a fatal error. */ +#ifndef YY_FATAL_ERROR +#define YY_FATAL_ERROR(msg) yy_fatal_error( msg ) +#endif + +/* end tables serialization structures and prototypes */ + +/* Default declaration of generated scanner - a define so the user can + * easily add parameters. + */ +#ifndef YY_DECL +#define YY_DECL_IS_OURS 1 + +extern int yylex (void); + +#define YY_DECL int yylex (void) +#endif /* !YY_DECL */ + +/* Code executed at the beginning of each rule, after yytext and yyleng + * have been set up. + */ +#ifndef YY_USER_ACTION +#define YY_USER_ACTION +#endif + +/* Code executed at the end of each rule. */ +#ifndef YY_BREAK +#define YY_BREAK break; +#endif + +#define YY_RULE_SETUP \ + YY_USER_ACTION + +/** The main scanner function which does all the work. + */ +YY_DECL +{ + register yy_state_type yy_current_state; + register char *yy_cp, *yy_bp; + register int yy_act; + + if ( !(yy_init) ) + { + (yy_init) = 1; + +#ifdef YY_USER_INIT + YY_USER_INIT; +#endif + + if ( ! (yy_start) ) + (yy_start) = 1; /* first start state */ + + if ( ! yyin ) + yyin = stdin; + + if ( ! yyout ) + yyout = stdout; + + if ( ! YY_CURRENT_BUFFER ) { + yyensure_buffer_stack (); + YY_CURRENT_BUFFER_LVALUE = + yy_create_buffer(yyin,YY_BUF_SIZE ); + } + + yy_load_buffer_state( ); + } + + { +#line 34 "fmd_scanner.l" + + +#line 719 "<stdout>" + + while ( 1 ) /* loops until end-of-file is reached */ + { + yy_cp = (yy_c_buf_p); + + /* Support of yytext. */ + *yy_cp = (yy_hold_char); + + /* yy_bp points to the position in yy_ch_buf of the start of + * the current run. + */ + yy_bp = yy_cp; + + yy_current_state = (yy_start); +yy_match: + do + { + register YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)] ; + if ( yy_accept[yy_current_state] ) + { + (yy_last_accepting_state) = yy_current_state; + (yy_last_accepting_cpos) = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 24 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; + ++yy_cp; + } + while ( yy_base[yy_current_state] != 34 ); + +yy_find_action: + yy_act = yy_accept[yy_current_state]; + if ( yy_act == 0 ) + { /* have to back up */ + yy_cp = (yy_last_accepting_cpos); + yy_current_state = (yy_last_accepting_state); + yy_act = yy_accept[yy_current_state]; + } + + YY_DO_BEFORE_ACTION; + +do_action: /* This label is used only to access EOF actions. */ + + switch ( yy_act ) + { /* beginning of action switch */ + case 0: /* must back up */ + /* undo the effects of YY_DO_BEFORE_ACTION */ + *yy_cp = (yy_hold_char); + yy_cp = (yy_last_accepting_cpos); + yy_current_state = (yy_last_accepting_state); + goto yy_find_action; + +case 1: +/* rule 1 can match eol */ +YY_RULE_SETUP +#line 36 "fmd_scanner.l" +/* Eat whitespace. */ + YY_BREAK +case 2: +*yy_cp = (yy_hold_char); /* undo effects of setting up yytext */ +(yy_c_buf_p) = yy_cp -= 1; +YY_DO_BEFORE_ACTION; /* set up yytext again */ +YY_RULE_SETUP +#line 37 "fmd_scanner.l" +/* Eat comments. */ + YY_BREAK +case 3: +#line 39 "fmd_scanner.l" +case 4: +YY_RULE_SETUP +#line 39 "fmd_scanner.l" +return parse_integer(yytext, 10); + YY_BREAK +case 5: +YY_RULE_SETUP +#line 40 "fmd_scanner.l" +return OCTAL; + YY_BREAK +case 6: +YY_RULE_SETUP +#line 41 "fmd_scanner.l" +return parse_integer(yytext + 2, 16); + YY_BREAK +case 7: +YY_RULE_SETUP +#line 42 "fmd_scanner.l" +return copy_string(yytext); + YY_BREAK +case 8: +YY_RULE_SETUP +#line 43 "fmd_scanner.l" +return *yytext; + YY_BREAK +case 9: +YY_RULE_SETUP +#line 45 "fmd_scanner.l" +ECHO; + YY_BREAK +#line 822 "<stdout>" +case YY_STATE_EOF(INITIAL): + yyterminate(); + + case YY_END_OF_BUFFER: + { + /* Amount of text matched not including the EOB char. */ + int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1; + + /* Undo the effects of YY_DO_BEFORE_ACTION. */ + *yy_cp = (yy_hold_char); + YY_RESTORE_YY_MORE_OFFSET + + if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW ) + { + /* We're scanning a new file or input source. It's + * possible that this happened because the user + * just pointed yyin at a new source and called + * yylex(). If so, then we have to assure + * consistency between YY_CURRENT_BUFFER and our + * globals. Here is the right place to do so, because + * this is the first action (other than possibly a + * back-up) that will match for the new input source. + */ + (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; + YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin; + YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL; + } + + /* Note that here we test for yy_c_buf_p "<=" to the position + * of the first EOB in the buffer, since yy_c_buf_p will + * already have been incremented past the NUL character + * (since all states make transitions on EOB to the + * end-of-buffer state). Contrast this with the test + * in input(). + */ + if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) + { /* This was really a NUL. */ + yy_state_type yy_next_state; + + (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text; + + yy_current_state = yy_get_previous_state( ); + + /* Okay, we're now positioned to make the NUL + * transition. We couldn't have + * yy_get_previous_state() go ahead and do it + * for us because it doesn't know how to deal + * with the possibility of jamming (and we don't + * want to build jamming into it because then it + * will run more slowly). + */ + + yy_next_state = yy_try_NUL_trans( yy_current_state ); + + yy_bp = (yytext_ptr) + YY_MORE_ADJ; + + if ( yy_next_state ) + { + /* Consume the NUL. */ + yy_cp = ++(yy_c_buf_p); + yy_current_state = yy_next_state; + goto yy_match; + } + + else + { + yy_cp = (yy_c_buf_p); + goto yy_find_action; + } + } + + else switch ( yy_get_next_buffer( ) ) + { + case EOB_ACT_END_OF_FILE: + { + (yy_did_buffer_switch_on_eof) = 0; + + if ( yywrap( ) ) + { + /* Note: because we've taken care in + * yy_get_next_buffer() to have set up + * yytext, we can now set up + * yy_c_buf_p so that if some total + * hoser (like flex itself) wants to + * call the scanner after we return the + * YY_NULL, it'll still work - another + * YY_NULL will get returned. + */ + (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ; + + yy_act = YY_STATE_EOF(YY_START); + goto do_action; + } + + else + { + if ( ! (yy_did_buffer_switch_on_eof) ) + YY_NEW_FILE; + } + break; + } + + case EOB_ACT_CONTINUE_SCAN: + (yy_c_buf_p) = + (yytext_ptr) + yy_amount_of_matched_text; + + yy_current_state = yy_get_previous_state( ); + + yy_cp = (yy_c_buf_p); + yy_bp = (yytext_ptr) + YY_MORE_ADJ; + goto yy_match; + + case EOB_ACT_LAST_MATCH: + (yy_c_buf_p) = + &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)]; + + yy_current_state = yy_get_previous_state( ); + + yy_cp = (yy_c_buf_p); + yy_bp = (yytext_ptr) + YY_MORE_ADJ; + goto yy_find_action; + } + break; + } + + default: + YY_FATAL_ERROR( + "fatal flex scanner internal error--no action found" ); + } /* end of action switch */ + } /* end of scanning one token */ + } /* end of user's declarations */ +} /* end of yylex */ + +/* yy_get_next_buffer - try to read in a new buffer + * + * Returns a code representing an action: + * EOB_ACT_LAST_MATCH - + * EOB_ACT_CONTINUE_SCAN - continue scanning from current position + * EOB_ACT_END_OF_FILE - end of file + */ +static int yy_get_next_buffer (void) +{ + register char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; + register char *source = (yytext_ptr); + register int number_to_move, i; + int ret_val; + + if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] ) + YY_FATAL_ERROR( + "fatal flex scanner internal error--end of buffer missed" ); + + if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 ) + { /* Don't try to fill the buffer, so this is an EOF. */ + if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 ) + { + /* We matched a single character, the EOB, so + * treat this as a final EOF. + */ + return EOB_ACT_END_OF_FILE; + } + + else + { + /* We matched some text prior to the EOB, first + * process it. + */ + return EOB_ACT_LAST_MATCH; + } + } + + /* Try to read more data. */ + + /* First move last chars to start of buffer. */ + number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr)) - 1; + + for ( i = 0; i < number_to_move; ++i ) + *(dest++) = *(source++); + + if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING ) + /* don't do the read, it's not guaranteed to return an EOF, + * just force an EOF + */ + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0; + + else + { + yy_size_t num_to_read = + YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; + + while ( num_to_read <= 0 ) + { /* Not enough room in the buffer - grow it. */ + + /* just a shorter name for the current buffer */ + YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE; + + int yy_c_buf_p_offset = + (int) ((yy_c_buf_p) - b->yy_ch_buf); + + if ( b->yy_is_our_buffer ) + { + yy_size_t new_size = b->yy_buf_size * 2; + + if ( new_size <= 0 ) + b->yy_buf_size += b->yy_buf_size / 8; + else + b->yy_buf_size *= 2; + + b->yy_ch_buf = (char *) + /* Include room in for 2 EOB chars. */ + yyrealloc((void *) b->yy_ch_buf,b->yy_buf_size + 2 ); + } + else + /* Can't grow it, we don't own it. */ + b->yy_ch_buf = 0; + + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( + "fatal error - scanner input buffer overflow" ); + + (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset]; + + num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size - + number_to_move - 1; + + } + + if ( num_to_read > YY_READ_BUF_SIZE ) + num_to_read = YY_READ_BUF_SIZE; + + /* Read in more data. */ + YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]), + (yy_n_chars), num_to_read ); + + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); + } + + if ( (yy_n_chars) == 0 ) + { + if ( number_to_move == YY_MORE_ADJ ) + { + ret_val = EOB_ACT_END_OF_FILE; + yyrestart(yyin ); + } + + else + { + ret_val = EOB_ACT_LAST_MATCH; + YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = + YY_BUFFER_EOF_PENDING; + } + } + + else + ret_val = EOB_ACT_CONTINUE_SCAN; + + if ((yy_size_t) ((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) { + /* Extend the array by 50%, plus the number we really need. */ + yy_size_t new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1); + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,new_size ); + if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" ); + } + + (yy_n_chars) += number_to_move; + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR; + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR; + + (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0]; + + return ret_val; +} + +/* yy_get_previous_state - get the state just before the EOB char was reached */ + + static yy_state_type yy_get_previous_state (void) +{ + register yy_state_type yy_current_state; + register char *yy_cp; + + yy_current_state = (yy_start); + + for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp ) + { + register YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1); + if ( yy_accept[yy_current_state] ) + { + (yy_last_accepting_state) = yy_current_state; + (yy_last_accepting_cpos) = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 24 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; + } + + return yy_current_state; +} + +/* yy_try_NUL_trans - try to make a transition on the NUL character + * + * synopsis + * next_state = yy_try_NUL_trans( current_state ); + */ + static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state ) +{ + register int yy_is_jam; + register char *yy_cp = (yy_c_buf_p); + + register YY_CHAR yy_c = 1; + if ( yy_accept[yy_current_state] ) + { + (yy_last_accepting_state) = yy_current_state; + (yy_last_accepting_cpos) = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 24 ) + yy_c = yy_meta[(unsigned int) yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + (unsigned int) yy_c]; + yy_is_jam = (yy_current_state == 23); + + return yy_is_jam ? 0 : yy_current_state; +} + + static void yyunput (int c, register char * yy_bp ) +{ + register char *yy_cp; + + yy_cp = (yy_c_buf_p); + + /* undo effects of setting up yytext */ + *yy_cp = (yy_hold_char); + + if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 ) + { /* need to shift things up to make room */ + /* +2 for EOB chars. */ + register yy_size_t number_to_move = (yy_n_chars) + 2; + register char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[ + YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2]; + register char *source = + &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]; + + while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) + *--dest = *--source; + + yy_cp += (int) (dest - source); + yy_bp += (int) (dest - source); + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = + (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_buf_size; + + if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 ) + YY_FATAL_ERROR( "flex scanner push-back overflow" ); + } + + *--yy_cp = (char) c; + + (yytext_ptr) = yy_bp; + (yy_hold_char) = *yy_cp; + (yy_c_buf_p) = yy_cp; +} + +#ifndef YY_NO_INPUT +#ifdef __cplusplus + static int yyinput (void) +#else + static int input (void) +#endif + +{ + int c; + + *(yy_c_buf_p) = (yy_hold_char); + + if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR ) + { + /* yy_c_buf_p now points to the character we want to return. + * If this occurs *before* the EOB characters, then it's a + * valid NUL; if not, then we've hit the end of the buffer. + */ + if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) + /* This was really a NUL. */ + *(yy_c_buf_p) = '\0'; + + else + { /* need more input */ + yy_size_t offset = (yy_c_buf_p) - (yytext_ptr); + ++(yy_c_buf_p); + + switch ( yy_get_next_buffer( ) ) + { + case EOB_ACT_LAST_MATCH: + /* This happens because yy_g_n_b() + * sees that we've accumulated a + * token and flags that we need to + * try matching the token before + * proceeding. But for input(), + * there's no matching to consider. + * So convert the EOB_ACT_LAST_MATCH + * to EOB_ACT_END_OF_FILE. + */ + + /* Reset buffer status. */ + yyrestart(yyin ); + + /*FALLTHROUGH*/ + + case EOB_ACT_END_OF_FILE: + { + if ( yywrap( ) ) + return EOF; + + if ( ! (yy_did_buffer_switch_on_eof) ) + YY_NEW_FILE; +#ifdef __cplusplus + return yyinput(); +#else + return input(); +#endif + } + + case EOB_ACT_CONTINUE_SCAN: + (yy_c_buf_p) = (yytext_ptr) + offset; + break; + } + } + } + + c = *(unsigned char *) (yy_c_buf_p); /* cast for 8-bit char's */ + *(yy_c_buf_p) = '\0'; /* preserve yytext */ + (yy_hold_char) = *++(yy_c_buf_p); + + return c; +} +#endif /* ifndef YY_NO_INPUT */ + +/** Immediately switch to a different input stream. + * @param input_file A readable stream. + * + * @note This function does not reset the start condition to @c INITIAL . + */ + void yyrestart (FILE * input_file ) +{ + + if ( ! YY_CURRENT_BUFFER ){ + yyensure_buffer_stack (); + YY_CURRENT_BUFFER_LVALUE = + yy_create_buffer(yyin,YY_BUF_SIZE ); + } + + yy_init_buffer(YY_CURRENT_BUFFER,input_file ); + yy_load_buffer_state( ); +} + +/** Switch to a different input buffer. + * @param new_buffer The new input buffer. + * + */ + void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ) +{ + + /* TODO. We should be able to replace this entire function body + * with + * yypop_buffer_state(); + * yypush_buffer_state(new_buffer); + */ + yyensure_buffer_stack (); + if ( YY_CURRENT_BUFFER == new_buffer ) + return; + + if ( YY_CURRENT_BUFFER ) + { + /* Flush out information for old buffer. */ + *(yy_c_buf_p) = (yy_hold_char); + YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); + } + + YY_CURRENT_BUFFER_LVALUE = new_buffer; + yy_load_buffer_state( ); + + /* We don't actually know whether we did this switch during + * EOF (yywrap()) processing, but the only time this flag + * is looked at is after yywrap() is called, so it's safe + * to go ahead and always set it. + */ + (yy_did_buffer_switch_on_eof) = 1; +} + +static void yy_load_buffer_state (void) +{ + (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; + (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos; + yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file; + (yy_hold_char) = *(yy_c_buf_p); +} + +/** Allocate and initialize an input buffer state. + * @param file A readable stream. + * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE. + * + * @return the allocated buffer state. + */ + YY_BUFFER_STATE yy_create_buffer (FILE * file, int size ) +{ + YY_BUFFER_STATE b; + + b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); + + b->yy_buf_size = size; + + /* yy_ch_buf has to be 2 characters longer than the size given because + * we need to put in 2 end-of-buffer characters. + */ + b->yy_ch_buf = (char *) yyalloc(b->yy_buf_size + 2 ); + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); + + b->yy_is_our_buffer = 1; + + yy_init_buffer(b,file ); + + return b; +} + +/** Destroy the buffer. + * @param b a buffer created with yy_create_buffer() + * + */ + void yy_delete_buffer (YY_BUFFER_STATE b ) +{ + + if ( ! b ) + return; + + if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */ + YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0; + + if ( b->yy_is_our_buffer ) + yyfree((void *) b->yy_ch_buf ); + + yyfree((void *) b ); +} + +/* Initializes or reinitializes a buffer. + * This function is sometimes called more than once on the same buffer, + * such as during a yyrestart() or at EOF. + */ + static void yy_init_buffer (YY_BUFFER_STATE b, FILE * file ) + +{ + int oerrno = errno; + + yy_flush_buffer(b ); + + b->yy_input_file = file; + b->yy_fill_buffer = 1; + + /* If b is the current buffer, then yy_init_buffer was _probably_ + * called from yyrestart() or through yy_get_next_buffer. + * In that case, we don't want to reset the lineno or column. + */ + if (b != YY_CURRENT_BUFFER){ + b->yy_bs_lineno = 1; + b->yy_bs_column = 0; + } + + b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0; + + errno = oerrno; +} + +/** Discard all buffered characters. On the next scan, YY_INPUT will be called. + * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER. + * + */ + void yy_flush_buffer (YY_BUFFER_STATE b ) +{ + if ( ! b ) + return; + + b->yy_n_chars = 0; + + /* We always need two end-of-buffer characters. The first causes + * a transition to the end-of-buffer state. The second causes + * a jam in that state. + */ + b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR; + b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR; + + b->yy_buf_pos = &b->yy_ch_buf[0]; + + b->yy_at_bol = 1; + b->yy_buffer_status = YY_BUFFER_NEW; + + if ( b == YY_CURRENT_BUFFER ) + yy_load_buffer_state( ); +} + +/** Pushes the new state onto the stack. The new state becomes + * the current state. This function will allocate the stack + * if necessary. + * @param new_buffer The new state. + * + */ +void yypush_buffer_state (YY_BUFFER_STATE new_buffer ) +{ + if (new_buffer == NULL) + return; + + yyensure_buffer_stack(); + + /* This block is copied from yy_switch_to_buffer. */ + if ( YY_CURRENT_BUFFER ) + { + /* Flush out information for old buffer. */ + *(yy_c_buf_p) = (yy_hold_char); + YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); + } + + /* Only push if top exists. Otherwise, replace top. */ + if (YY_CURRENT_BUFFER) + (yy_buffer_stack_top)++; + YY_CURRENT_BUFFER_LVALUE = new_buffer; + + /* copied from yy_switch_to_buffer. */ + yy_load_buffer_state( ); + (yy_did_buffer_switch_on_eof) = 1; +} + +/** Removes and deletes the top of the stack, if present. + * The next element becomes the new top. + * + */ +void yypop_buffer_state (void) +{ + if (!YY_CURRENT_BUFFER) + return; + + yy_delete_buffer(YY_CURRENT_BUFFER ); + YY_CURRENT_BUFFER_LVALUE = NULL; + if ((yy_buffer_stack_top) > 0) + --(yy_buffer_stack_top); + + if (YY_CURRENT_BUFFER) { + yy_load_buffer_state( ); + (yy_did_buffer_switch_on_eof) = 1; + } +} + +/* Allocates the stack if it does not exist. + * Guarantees space for at least one push. + */ +static void yyensure_buffer_stack (void) +{ + yy_size_t num_to_alloc; + + if (!(yy_buffer_stack)) { + + /* First allocation is just for 2 elements, since we don't know if this + * scanner will even need a stack. We use 2 instead of 1 to avoid an + * immediate realloc on the next call. + */ + num_to_alloc = 1; + (yy_buffer_stack) = (struct yy_buffer_state**)yyalloc + (num_to_alloc * sizeof(struct yy_buffer_state*) + ); + if ( ! (yy_buffer_stack) ) + YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); + + memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*)); + + (yy_buffer_stack_max) = num_to_alloc; + (yy_buffer_stack_top) = 0; + return; + } + + if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){ + + /* Increase the buffer to prepare for a possible push. */ + int grow_size = 8 /* arbitrary grow size */; + + num_to_alloc = (yy_buffer_stack_max) + grow_size; + (yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc + ((yy_buffer_stack), + num_to_alloc * sizeof(struct yy_buffer_state*) + ); + if ( ! (yy_buffer_stack) ) + YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); + + /* zero only the new slots.*/ + memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*)); + (yy_buffer_stack_max) = num_to_alloc; + } +} + +/** Setup the input buffer state to scan directly from a user-specified character buffer. + * @param base the character buffer + * @param size the size in bytes of the character buffer + * + * @return the newly allocated buffer state object. + */ +YY_BUFFER_STATE yy_scan_buffer (char * base, yy_size_t size ) +{ + YY_BUFFER_STATE b; + + if ( size < 2 || + base[size-2] != YY_END_OF_BUFFER_CHAR || + base[size-1] != YY_END_OF_BUFFER_CHAR ) + /* They forgot to leave room for the EOB's. */ + return 0; + + b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state ) ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" ); + + b->yy_buf_size = size - 2; /* "- 2" to take care of EOB's */ + b->yy_buf_pos = b->yy_ch_buf = base; + b->yy_is_our_buffer = 0; + b->yy_input_file = 0; + b->yy_n_chars = b->yy_buf_size; + b->yy_is_interactive = 0; + b->yy_at_bol = 1; + b->yy_fill_buffer = 0; + b->yy_buffer_status = YY_BUFFER_NEW; + + yy_switch_to_buffer(b ); + + return b; +} + +/** Setup the input buffer state to scan a string. The next call to yylex() will + * scan from a @e copy of @a str. + * @param yystr a NUL-terminated string to scan + * + * @return the newly allocated buffer state object. + * @note If you want to scan bytes that may contain NUL values, then use + * yy_scan_bytes() instead. + */ +YY_BUFFER_STATE yy_scan_string (yyconst char * yystr ) +{ + + return yy_scan_bytes(yystr,strlen(yystr) ); +} + +/** Setup the input buffer state to scan the given bytes. The next call to yylex() will + * scan from a @e copy of @a bytes. + * @param yybytes the byte buffer to scan + * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes. + * + * @return the newly allocated buffer state object. + */ +YY_BUFFER_STATE yy_scan_bytes (yyconst char * yybytes, yy_size_t _yybytes_len ) +{ + YY_BUFFER_STATE b; + char *buf; + yy_size_t n; + yy_size_t i; + + /* Get memory for full buffer, including space for trailing EOB's. */ + n = _yybytes_len + 2; + buf = (char *) yyalloc(n ); + if ( ! buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" ); + + for ( i = 0; i < _yybytes_len; ++i ) + buf[i] = yybytes[i]; + + buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR; + + b = yy_scan_buffer(buf,n ); + if ( ! b ) + YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" ); + + /* It's okay to grow etc. this buffer, and we should throw it + * away when we're done. + */ + b->yy_is_our_buffer = 1; + + return b; +} + +#ifndef YY_EXIT_FAILURE +#define YY_EXIT_FAILURE 2 +#endif + +static void yy_fatal_error (yyconst char* msg ) +{ + (void) fprintf( stderr, "%s\n", msg ); + exit( YY_EXIT_FAILURE ); +} + +/* Redefine yyless() so it works in section 3 code. */ + +#undef yyless +#define yyless(n) \ + do \ + { \ + /* Undo effects of setting up yytext. */ \ + int yyless_macro_arg = (n); \ + YY_LESS_LINENO(yyless_macro_arg);\ + yytext[yyleng] = (yy_hold_char); \ + (yy_c_buf_p) = yytext + yyless_macro_arg; \ + (yy_hold_char) = *(yy_c_buf_p); \ + *(yy_c_buf_p) = '\0'; \ + yyleng = yyless_macro_arg; \ + } \ + while ( 0 ) + +/* Accessor methods (get/set functions) to struct members. */ + +/** Get the current line number. + * + */ +int yyget_lineno (void) +{ + + return yylineno; +} + +/** Get the input stream. + * + */ +FILE *yyget_in (void) +{ + return yyin; +} + +/** Get the output stream. + * + */ +FILE *yyget_out (void) +{ + return yyout; +} + +/** Get the length of the current token. + * + */ +yy_size_t yyget_leng (void) +{ + return yyleng; +} + +/** Get the current token. + * + */ + +char *yyget_text (void) +{ + return yytext; +} + +/** Set the current line number. + * @param line_number + * + */ +void yyset_lineno (int line_number ) +{ + + yylineno = line_number; +} + +/** Set the input stream. This does not discard the current + * input buffer. + * @param in_str A readable stream. + * + * @see yy_switch_to_buffer + */ +void yyset_in (FILE * in_str ) +{ + yyin = in_str ; +} + +void yyset_out (FILE * out_str ) +{ + yyout = out_str ; +} + +int yyget_debug (void) +{ + return yy_flex_debug; +} + +void yyset_debug (int bdebug ) +{ + yy_flex_debug = bdebug ; +} + +static int yy_init_globals (void) +{ + /* Initialization is the same as for the non-reentrant scanner. + * This function is called from yylex_destroy(), so don't allocate here. + */ + + (yy_buffer_stack) = 0; + (yy_buffer_stack_top) = 0; + (yy_buffer_stack_max) = 0; + (yy_c_buf_p) = (char *) 0; + (yy_init) = 0; + (yy_start) = 0; + +/* Defined in main.c */ +#ifdef YY_STDINIT + yyin = stdin; + yyout = stdout; +#else + yyin = (FILE *) 0; + yyout = (FILE *) 0; +#endif + + /* For future reference: Set errno on error, since we are called by + * yylex_init() + */ + return 0; +} + +/* yylex_destroy is for both reentrant and non-reentrant scanners. */ +int yylex_destroy (void) +{ + + /* Pop the buffer stack, destroying each element. */ + while(YY_CURRENT_BUFFER){ + yy_delete_buffer(YY_CURRENT_BUFFER ); + YY_CURRENT_BUFFER_LVALUE = NULL; + yypop_buffer_state(); + } + + /* Destroy the stack itself. */ + yyfree((yy_buffer_stack) ); + (yy_buffer_stack) = NULL; + + /* Reset the globals. This is important in a non-reentrant scanner so the next time + * yylex() is called, initialization will occur. */ + yy_init_globals( ); + + return 0; +} + +/* + * Internal utility routines. + */ + +#ifndef yytext_ptr +static void yy_flex_strncpy (char* s1, yyconst char * s2, int n ) +{ + register int i; + for ( i = 0; i < n; ++i ) + s1[i] = s2[i]; +} +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen (yyconst char * s ) +{ + register int n; + for ( n = 0; s[n]; ++n ) + ; + + return n; +} +#endif + +void *yyalloc (yy_size_t size ) +{ + return (void *) malloc( size ); +} + +void *yyrealloc (void * ptr, yy_size_t size ) +{ + /* The cast to (char *) in the following accommodates both + * implementations that use char* generic pointers, and those + * that use void* generic pointers. It works with the latter + * because both ANSI C and C++ allow castless assignment from + * any pointer type to void*, and deal with argument conversions + * as though doing an assignment. + */ + return (void *) realloc( (char *) ptr, size ); +} + +void yyfree (void * ptr ) +{ + free( (char *) ptr ); /* see yyrealloc() for (char *) cast */ +} + +#define YYTABLES_NAME "yytables" + +#line 44 "fmd_scanner.l" + + + +int parse_integer(char *input, int base) +{ + char *multiplier = NULL; + unsigned val = strtoul(input, &multiplier, base); + + if (*multiplier) { + switch(*multiplier) { + case 'K': + val *= 1024; + break; + case 'M': + val *= 1024*1024; + break; + case 'G': + val *= 1024*1024*1024; + break; + default: + // If we ever get here, the MULTIPLIER regex is allowing + // multiplier suffixes not handled by this code. + assert(false); + } + } + + yylval.intval = val; + return INTEGER; +} + +int copy_string(const char *input) +{ + yylval.strval = strdup(input); + return STRING; +} + diff --git a/util/cbfstool/fmd_scanner.h b/util/cbfstool/fmd_scanner.h new file mode 100644 index 0000000..595b530 --- /dev/null +++ b/util/cbfstool/fmd_scanner.h @@ -0,0 +1,333 @@ +#ifndef yyHEADER_H +#define yyHEADER_H 1 +#define yyIN_HEADER 1 + +#line 6 "fmd_scanner.h" + +#define YY_INT_ALIGNED short int + +/* A lexical scanner generated by flex */ + +#define FLEX_SCANNER +#define YY_FLEX_MAJOR_VERSION 2 +#define YY_FLEX_MINOR_VERSION 5 +#define YY_FLEX_SUBMINOR_VERSION 39 +#if YY_FLEX_SUBMINOR_VERSION > 0 +#define FLEX_BETA +#endif + +/* First, we deal with platform-specific or compiler-specific issues. */ + +/* begin standard C headers. */ +#include <stdio.h> +#include <string.h> +#include <errno.h> +#include <stdlib.h> + +/* end standard C headers. */ + +/* flex integer type definitions */ + +#ifndef FLEXINT_H +#define FLEXINT_H + +/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */ + +#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L + +/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h, + * if you want the limit (max/min) macros for int types. + */ +#ifndef __STDC_LIMIT_MACROS +#define __STDC_LIMIT_MACROS 1 +#endif + +#include <inttypes.h> +typedef int8_t flex_int8_t; +typedef uint8_t flex_uint8_t; +typedef int16_t flex_int16_t; +typedef uint16_t flex_uint16_t; +typedef int32_t flex_int32_t; +typedef uint32_t flex_uint32_t; +#else +typedef signed char flex_int8_t; +typedef short int flex_int16_t; +typedef int flex_int32_t; +typedef unsigned char flex_uint8_t; +typedef unsigned short int flex_uint16_t; +typedef unsigned int flex_uint32_t; + +/* Limits of integral types. */ +#ifndef INT8_MIN +#define INT8_MIN (-128) +#endif +#ifndef INT16_MIN +#define INT16_MIN (-32767-1) +#endif +#ifndef INT32_MIN +#define INT32_MIN (-2147483647-1) +#endif +#ifndef INT8_MAX +#define INT8_MAX (127) +#endif +#ifndef INT16_MAX +#define INT16_MAX (32767) +#endif +#ifndef INT32_MAX +#define INT32_MAX (2147483647) +#endif +#ifndef UINT8_MAX +#define UINT8_MAX (255U) +#endif +#ifndef UINT16_MAX +#define UINT16_MAX (65535U) +#endif +#ifndef UINT32_MAX +#define UINT32_MAX (4294967295U) +#endif + +#endif /* ! C99 */ + +#endif /* ! FLEXINT_H */ + +#ifdef __cplusplus + +/* The "const" storage-class-modifier is valid. */ +#define YY_USE_CONST + +#else /* ! __cplusplus */ + +/* C99 requires __STDC__ to be defined as 1. */ +#if defined (__STDC__) + +#define YY_USE_CONST + +#endif /* defined (__STDC__) */ +#endif /* ! __cplusplus */ + +#ifdef YY_USE_CONST +#define yyconst const +#else +#define yyconst +#endif + +/* Size of default input buffer. */ +#ifndef YY_BUF_SIZE +#ifdef __ia64__ +/* On IA-64, the buffer size is 16k, not 8k. + * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case. + * Ditto for the __ia64__ case accordingly. + */ +#define YY_BUF_SIZE 32768 +#else +#define YY_BUF_SIZE 16384 +#endif /* __ia64__ */ +#endif + +#ifndef YY_TYPEDEF_YY_BUFFER_STATE +#define YY_TYPEDEF_YY_BUFFER_STATE +typedef struct yy_buffer_state *YY_BUFFER_STATE; +#endif + +#ifndef YY_TYPEDEF_YY_SIZE_T +#define YY_TYPEDEF_YY_SIZE_T +typedef size_t yy_size_t; +#endif + +extern yy_size_t yyleng; + +extern FILE *yyin, *yyout; + +#ifndef YY_STRUCT_YY_BUFFER_STATE +#define YY_STRUCT_YY_BUFFER_STATE +struct yy_buffer_state + { + FILE *yy_input_file; + + char *yy_ch_buf; /* input buffer */ + char *yy_buf_pos; /* current position in input buffer */ + + /* Size of input buffer in bytes, not including room for EOB + * characters. + */ + yy_size_t yy_buf_size; + + /* Number of characters read into yy_ch_buf, not including EOB + * characters. + */ + yy_size_t yy_n_chars; + + /* Whether we "own" the buffer - i.e., we know we created it, + * and can realloc() it to grow it, and should free() it to + * delete it. + */ + int yy_is_our_buffer; + + /* Whether this is an "interactive" input source; if so, and + * if we're using stdio for input, then we want to use getc() + * instead of fread(), to make sure we stop fetching input after + * each newline. + */ + int yy_is_interactive; + + /* Whether we're considered to be at the beginning of a line. + * If so, '^' rules will be active on the next match, otherwise + * not. + */ + int yy_at_bol; + + int yy_bs_lineno; /**< The line count. */ + int yy_bs_column; /**< The column count. */ + + /* Whether to try to fill the input buffer when we reach the + * end of it. + */ + int yy_fill_buffer; + + int yy_buffer_status; + + }; +#endif /* !YY_STRUCT_YY_BUFFER_STATE */ + +void yyrestart (FILE *input_file ); +void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ); +YY_BUFFER_STATE yy_create_buffer (FILE *file,int size ); +void yy_delete_buffer (YY_BUFFER_STATE b ); +void yy_flush_buffer (YY_BUFFER_STATE b ); +void yypush_buffer_state (YY_BUFFER_STATE new_buffer ); +void yypop_buffer_state (void ); + +YY_BUFFER_STATE yy_scan_buffer (char *base,yy_size_t size ); +YY_BUFFER_STATE yy_scan_string (yyconst char *yy_str ); +YY_BUFFER_STATE yy_scan_bytes (yyconst char *bytes,yy_size_t len ); + +void *yyalloc (yy_size_t ); +void *yyrealloc (void *,yy_size_t ); +void yyfree (void * ); + +/* Begin user sect3 */ + +#define yywrap() 1 +#define YY_SKIP_YYWRAP + +extern int yylineno; + +extern char *yytext; +#define yytext_ptr yytext + +#ifdef YY_HEADER_EXPORT_START_CONDITIONS +#define INITIAL 0 + +#endif + +#ifndef YY_NO_UNISTD_H +/* Special case for "unistd.h", since it is non-ANSI. We include it way + * down here because we want the user's section 1 to have been scanned first. + * The user has a chance to override it with an option. + */ +#include <unistd.h> +#endif + +#ifndef YY_EXTRA_TYPE +#define YY_EXTRA_TYPE void * +#endif + +/* Accessor methods to globals. + These are made visible to non-reentrant scanners for convenience. */ + +int yylex_destroy (void ); + +int yyget_debug (void ); + +void yyset_debug (int debug_flag ); + +YY_EXTRA_TYPE yyget_extra (void ); + +void yyset_extra (YY_EXTRA_TYPE user_defined ); + +FILE *yyget_in (void ); + +void yyset_in (FILE * in_str ); + +FILE *yyget_out (void ); + +void yyset_out (FILE * out_str ); + +yy_size_t yyget_leng (void ); + +char *yyget_text (void ); + +int yyget_lineno (void ); + +void yyset_lineno (int line_number ); + +/* Macros after this point can all be overridden by user definitions in + * section 1. + */ + +#ifndef YY_SKIP_YYWRAP +#ifdef __cplusplus +extern "C" int yywrap (void ); +#else +extern int yywrap (void ); +#endif +#endif + +#ifndef yytext_ptr +static void yy_flex_strncpy (char *,yyconst char *,int ); +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen (yyconst char * ); +#endif + +#ifndef YY_NO_INPUT + +#endif + +/* Amount of stuff to slurp up with each read. */ +#ifndef YY_READ_BUF_SIZE +#ifdef __ia64__ +/* On IA-64, the buffer size is 16k, not 8k */ +#define YY_READ_BUF_SIZE 16384 +#else +#define YY_READ_BUF_SIZE 8192 +#endif /* __ia64__ */ +#endif + +/* Number of entries by which start-condition stack grows. */ +#ifndef YY_START_STACK_INCR +#define YY_START_STACK_INCR 25 +#endif + +/* Default declaration of generated scanner - a define so the user can + * easily add parameters. + */ +#ifndef YY_DECL +#define YY_DECL_IS_OURS 1 + +extern int yylex (void); + +#define YY_DECL int yylex (void) +#endif /* !YY_DECL */ + +/* yy_get_previous_state - get the state just before the EOB char was reached */ + +#undef YY_NEW_FILE +#undef YY_FLUSH_BUFFER +#undef yy_set_bol +#undef yy_new_buffer +#undef yy_set_interactive +#undef YY_DO_BEFORE_ACTION + +#ifdef YY_DECL_IS_OURS +#undef YY_DECL_IS_OURS +#undef YY_DECL +#endif + +#line 44 "fmd_scanner.l" + + +#line 332 "fmd_scanner.h" +#undef yyIN_HEADER +#endif /* yyHEADER_H */ diff --git a/util/cbfstool/fmd_scanner.l b/util/cbfstool/fmd_scanner.l new file mode 100644 index 0000000..d2cc43d --- /dev/null +++ b/util/cbfstool/fmd_scanner.l @@ -0,0 +1,78 @@ +/* + * fmd_scanner.l, scanner generator for flashmap descriptor language + * + * Copyright (C) 2015 Google, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ + +%{ +#include "fmd_parser.h" + +#include <assert.h> +#include <string.h> + +int parse_integer(char *input, int base); +int copy_string(const char *input); +%} + +%option noyywrap + +MULTIPLIER [KMG] + +%% + +[[:space:]]+ /* Eat whitespace. */ +#.*$ /* Eat comments. */ +0{MULTIPLIER}? | +[1-9][0-9]*{MULTIPLIER}? return parse_integer(yytext, 10); +0[0-9]+{MULTIPLIER}? return OCTAL; +0[xX][0-9a-f]+{MULTIPLIER}? return parse_integer(yytext + 2, 16); +[^#@{}()[:space:]]* return copy_string(yytext); +. return *yytext; + +%% + +int parse_integer(char *input, int base) +{ + char *multiplier = NULL; + unsigned val = strtoul(input, &multiplier, base); + + if (*multiplier) { + switch(*multiplier) { + case 'K': + val *= 1024; + break; + case 'M': + val *= 1024*1024; + break; + case 'G': + val *= 1024*1024*1024; + break; + default: + // If we ever get here, the MULTIPLIER regex is allowing + // multiplier suffixes not handled by this code. + assert(false); + } + } + + yylval.intval = val; + return INTEGER; +} + +int copy_string(const char *input) +{ + yylval.strval = strdup(input); + return STRING; +} diff --git a/util/cbfstool/option.h b/util/cbfstool/option.h new file mode 100644 index 0000000..70777f8 --- /dev/null +++ b/util/cbfstool/option.h @@ -0,0 +1,29 @@ +/* + * option.h, unsigned OPTION type + * + * Copyright (C) 2015 Google, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ + +#ifndef OPTION_H_ +#define OPTION_H_ + +struct unsigned_option { + bool val_known; + /** It is an error to read this field unless val_known is set. */ + unsigned val; +}; + +#endif