Aaron Durbin (adurbin@chromium.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/11521
-gerrit
commit bdaffefe0ddf3a7bae7cb7fd4ebadac03c53a8f3 Author: Aaron Durbin adurbin@chromium.org Date: Sat Sep 5 13:31:14 2015 -0500
x86: link romstage and ramstage with 1 file
To reduce file clutter merge romstage.ld and ramstage.ld into a single memlayout.ld. The naming is consistent with other architectures and chipsets for their linker script names. The cache-as-ram linking rules are put into a separate file such that other rules can be applied for future verstage support.
BUG=chrome-os-partner:44827 BRANCH=None TEST=Built rambi and dmp/vortex86ex.
Change-Id: I1e8982a6a28027566ddd42a71b7e24e2397e68d2 Signed-off-by: Aaron Durbin adubin@chromium.org --- src/arch/x86/Makefile.inc | 10 ++++---- src/arch/x86/car.ld | 50 +++++++++++++++++++++++++++++++++++++++ src/arch/x86/memlayout.ld | 42 +++++++++++++++++++++++++++++++++ src/arch/x86/ramstage.ld | 7 ------ src/arch/x86/romstage.ld | 59 ----------------------------------------------- 5 files changed, 97 insertions(+), 71 deletions(-)
diff --git a/src/arch/x86/Makefile.inc b/src/arch/x86/Makefile.inc index 4c88a27..bbbe273 100644 --- a/src/arch/x86/Makefile.inc +++ b/src/arch/x86/Makefile.inc @@ -113,7 +113,7 @@ endif # CONFIG_ARCH_BOOTBLOCK_X86_32 / CONFIG_ARCH_BOOTBLOCK_X86_64
ifeq ($(CONFIG_ARCH_ROMSTAGE_X86_32)$(CONFIG_ARCH_ROMSTAGE_X86_64),y)
-romstage-y += romstage.ld +romstage-y += memlayout.ld
# Chipset specific assembly stubs in the romstage program flow. Certain # boards have more than one assembly stub so collect those and put them @@ -192,7 +192,7 @@ $(objcbfs)/romstage.debug: $$(romstage-objs) $(objgenerated)/romstage.ld $$(roms @printf " LINK $(subst $(obj)/,,$(@))\n" $(LD_romstage) --gc-sections -nostdlib -nostartfiles -static -o $@ -L$(obj) $(COMPILER_RT_FLAGS_romstage) --whole-archive --start-group $(filter-out %.ld,$(romstage-objs)) $(romstage-libs) --no-whole-archive $(COMPILER_RT_romstage) --end-group -T $(objgenerated)/romstage.ld --oformat $(romstage-oformat)
-$(objgenerated)/romstage_null.ld: $(obj)/arch/x86/romstage.romstage.ld +$(objgenerated)/romstage_null.ld: $(obj)/arch/x86/memlayout.romstage.ld @printf " GEN $(subst $(obj)/,,$(@))\n" rm -f $@ printf "ROMSTAGE_BASE = 0x0;\n" > $@.tmp @@ -288,11 +288,11 @@ $(objcbfs)/ramstage.elf: $(objcbfs)/ramstage.debug.rmod
else
-ramstage-y += ramstage.ld +ramstage-y += memlayout.ld
-$(objcbfs)/ramstage.debug: $(objgenerated)/ramstage.o $(obj)/arch/x86/ramstage.ramstage.ld +$(objcbfs)/ramstage.debug: $(objgenerated)/ramstage.o $(obj)/arch/x86/memlayout.ramstage.ld @printf " CC $(subst $(obj)/,,$(@))\n" - $(LD_ramstage) $(CPPFLAGS) --gc-sections -o $@ -L$(obj) $< -T $(obj)/arch/x86/ramstage.ramstage.ld + $(LD_ramstage) $(CPPFLAGS) --gc-sections -o $@ -L$(obj) $< -T $(obj)/arch/x86/memlayout.ramstage.ld
endif
diff --git a/src/arch/x86/car.ld b/src/arch/x86/car.ld new file mode 100644 index 0000000..1724a73 --- /dev/null +++ b/src/arch/x86/car.ld @@ -0,0 +1,50 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2006 Advanced Micro Devices, Inc. + * Copyright (C) 2008-2010 coresystems GmbH + * Copyright 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. + */ + + . = CONFIG_DCACHE_RAM_BASE; + .car.data . (NOLOAD) : { + SYMBOL_CURRENT_LOC(car_data_start) +#if IS_ENABLED(CONFIG_HAS_PRECBMEM_TIMESTAMP_REGION) + TIMESTAMP(., 0x100) +#endif + *(.car.global_data); + POINTER_ALIGN + SYMBOL_CURRENT_LOC(car_data_end) + + PRERAM_CBMEM_CONSOLE(., (CONFIG_LATE_CBMEM_INIT ? 0 : 0xc00)) + } + + /* Global variables are not allowed in romstage + * This section is checked during stage creation to ensure + * that there are no global variables present + */ + + . = 0xffffff00; + .illegal_globals . : { + *(EXCLUDE_FILE ("*/libagesa.*.a:" "*/buildOpts.romstage.o" "*/agesawrapper.romstage.o" "*/vendorcode/amd/agesa/*" "*/vendorcode/amd/cimx/*") .data) + *(EXCLUDE_FILE ("*/libagesa.*.a:" "*/buildOpts.romstage.o" "*/agesawrapper.romstage.o" "*/vendorcode/amd/agesa/*" "*/vendorcode/amd/cimx/*") .data.*) + *(.bss) + *(.bss.*) + *(.sbss) + *(.sbss.*) + } + + _bogus = ASSERT((CONFIG_DCACHE_RAM_SIZE == 0) || (SIZEOF(.car.data) + 0xc00 <= CONFIG_DCACHE_RAM_SIZE), "Cache as RAM area is too full"); diff --git a/src/arch/x86/memlayout.ld b/src/arch/x86/memlayout.ld new file mode 100644 index 0000000..43c5229 --- /dev/null +++ b/src/arch/x86/memlayout.ld @@ -0,0 +1,42 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 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. + */ + +#include <memlayout.h> +#include <arch/header.ld> + +SECTIONS +{ + /* + * It would be good to lay down RAMSTAGE, ROMSTAGE, etc consecutively + * like other architectures/chipsets it's not possible because of + * the linking games played during romstage creation by trying + * to find the final landing place in CBFS for XIP. Therefore, + * conditionalize with macros. + */ +#if ENV_RAMSTAGE + RAMSTAGE(CONFIG_RAMBASE, CONFIG_RAMTOP - CONFIG_RAMBASE) + +#elif ENV_ROMSTAGE + /* The 1M size is not allocated. It's just for basic size checking. */ + ROMSTAGE(ROMSTAGE_BASE, 1M) + + /* Pull in the cache-as-ram rules. */ + #include "car.ld" +#endif +} diff --git a/src/arch/x86/ramstage.ld b/src/arch/x86/ramstage.ld deleted file mode 100644 index 0d329db..0000000 --- a/src/arch/x86/ramstage.ld +++ /dev/null @@ -1,7 +0,0 @@ -#include <memlayout.h> -#include <arch/header.ld> - -SECTIONS -{ - RAMSTAGE(CONFIG_RAMBASE, CONFIG_RAMTOP - CONFIG_RAMBASE) -} diff --git a/src/arch/x86/romstage.ld b/src/arch/x86/romstage.ld deleted file mode 100644 index 9c44b13..0000000 --- a/src/arch/x86/romstage.ld +++ /dev/null @@ -1,59 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2006 Advanced Micro Devices, Inc. - * Copyright (C) 2008-2010 coresystems GmbH - * Copyright 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. - */ - -#include <memlayout.h> -#include <arch/header.ld> - -SECTIONS -{ - /* The 1M size is not allocated. It's just for basic size checking. */ - ROMSTAGE(ROMSTAGE_BASE, 1M) - - . = CONFIG_DCACHE_RAM_BASE; - .car.data . (NOLOAD) : { - SYMBOL_CURRENT_LOC(car_data_start) -#if IS_ENABLED(CONFIG_HAS_PRECBMEM_TIMESTAMP_REGION) - TIMESTAMP(., 0x100) -#endif - *(.car.global_data); - POINTER_ALIGN - SYMBOL_CURRENT_LOC(car_data_end) - - PRERAM_CBMEM_CONSOLE(., (CONFIG_LATE_CBMEM_INIT ? 0 : 0xc00)) - } - - /* Global variables are not allowed in romstage - * This section is checked during stage creation to ensure - * that there are no global variables present - */ - - . = 0xffffff00; - .illegal_globals . : { - *(EXCLUDE_FILE ("*/libagesa.*.a:" "*/buildOpts.romstage.o" "*/agesawrapper.romstage.o" "*/vendorcode/amd/agesa/*" "*/vendorcode/amd/cimx/*") .data) - *(EXCLUDE_FILE ("*/libagesa.*.a:" "*/buildOpts.romstage.o" "*/agesawrapper.romstage.o" "*/vendorcode/amd/agesa/*" "*/vendorcode/amd/cimx/*") .data.*) - *(.bss) - *(.bss.*) - *(.sbss) - *(.sbss.*) - } - - _bogus = ASSERT((CONFIG_DCACHE_RAM_SIZE == 0) || (SIZEOF(.car.data) + 0xc00 <= CONFIG_DCACHE_RAM_SIZE), "Cache as RAM area is too full"); -}