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Makefile.inc: objcopy extracts a wrong section of cbfs_master_header 

Commit 75226bb879 ("Makefile.inc: Generate master header and pointer
as C structs") may cause objcopy to copy a wrong section of object file
resulting in miscompiled image with missing CBFS master header. This
makes the usage of secondary payloads impossible.

For example a wrong section for CONFIG_ANY_TOOLCHAIN +
objcopy 2.38-slack151 will copy ".note.gnu.property".

This patch constraints the sections to .data and .bss only.

Signed-off-by: Petr Cvek <petrcvekcz@gmail.com>
Change-Id: I1b9a73ece7067c9c5100cb294775078f838e263b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65808
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This commit is contained in:
Petr Cvek 2022-07-13 05:23:15 +02:00 committed by Felix Held
parent 97b0cf774d
commit 552c052a94
1 changed files with 1 additions and 1 deletions
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2
Makefile.inc
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@ -343,7 +343,7 @@ cbfs-files-processor-struct= \
$(eval $(2): $(1) $(obj)/build.h $(obj)/fmap_config.h $(KCONFIG_AUTOHEADER); \
printf " CC+STRIP $(1)\n"; \
$(CC_ramstage) -MMD $(CPPFLAGS_ramstage) $(CFLAGS_ramstage) --param asan-globals=0 $$(ramstage-c-ccopts) -include $(KCONFIG_AUTOHEADER) -MT $(2) -o $(2).tmp -c $(1) && \
$(OBJCOPY_ramstage) -O binary --set-section-flags .bss*=alloc,contents,load $(2).tmp $(2); \
$(OBJCOPY_ramstage) -O binary --only-section='.data*' --only-section='.bss*' --set-section-flags .bss*=alloc,contents,load $(2).tmp $(2); \
rm -f $(2).tmp) \
$(eval DEPENDENCIES += $(2).d)