[commit] r5077 - in trunk: src/arch/i386 util/cbfstool

[repository service]

Author: oxygene
Date: Wed Feb  3 18:56:37 2010
New Revision: 5077
URL: http://tracker.coreboot.org/trac/coreboot/changeset/5077

Log:
Guards against errors that are hard to track down:
- if crt0s is empty (eg. because crt0-y is still used),
  break the build, and say where that behaviour changed
- if a stage is unusable for cbfstool because it's placed
  outside the ROM space (linked to 0 is somewhat notorious),
  warn about it, give some hints and exit instead of crashing.

Signed-off-by: Patrick Georgi 
Acked-by: Stefan Reinauer

Modified:
   trunk/src/arch/i386/Makefile.inc
   trunk/util/cbfstool/cbfs-mkstage.c

Modified: trunk/src/arch/i386/Makefile.inc
==============================================================================
--- trunk/src/arch/i386/Makefile.inc	Wed Feb  3 18:25:34 2010	(r5076)
+++ trunk/src/arch/i386/Makefile.inc	Wed Feb  3 18:56:37 2010	(r5077)
@@ -62,6 +62,10 @@
 #######################################################################
 # done

+# crt0s should be set by now
+ifeq ($(crt0s),)
+$(error crt0s are empty. If your board still uses crt0-y and ldscript-y: It shouldn't, we moved away from that in r5065)
+endif
 endif

ifeq ($(CONFIG_TINY_BOOTBLOCK),y)

Modified: trunk/util/cbfstool/cbfs-mkstage.c
==============================================================================
--- trunk/util/cbfstool/cbfs-mkstage.c	Wed Feb  3 18:25:34 2010	(r5076)
+++ trunk/util/cbfstool/cbfs-mkstage.c	Wed Feb  3 18:56:37 2010	(r5077)
@@ -126,6 +126,11 @@
    	data_start = *location;
    }

+	if (data_end <= data_start) {
+		fprintf(stderr, "E: data ends before it starts. Make sure the ELF file is correct and resides in ROM space.\n");
+		exit(1);
+	}
+
    /* allocate an intermediate buffer for the data */
    buffer = calloc(data_end - data_start, 1);