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| author | Aaron Durbin <adurbin@chromium.org> | 2015-05-15 15:23:39 -0500 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-05-19 10:36:48 +0200 |
| commit | 58d5e21851ced6b475a87e3a4114b2c7e1125921 (patch) | |
| tree | e40e3600e246bfd5d0639184ed6470d478a6b5c8 /src | |
| parent | e645bcae7ccf1d7e4e75aa7d9149df5dae1d19c4 (diff) | |
| download | coreboot-58d5e21851ced6b475a87e3a4114b2c7e1125921.tar.xz | |
x86: garbage collect SMM programs
The non-module SMM programs were not being garbage collected
during linking. Do this so that one doesn't have to add dependencies
for unused functions in SMM.
TEST=Interrogated readelf -e smm.elf on both builds as well as diffed
the symbol table. Runtime testing was not done.
Change-Id: I31991496d92191e540df6340c587eec09c7022b3
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/10219
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/cpu/x86/smm/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/cpu/x86/smm/smm.ld | 2 | ||||
| -rw-r--r-- | src/cpu/x86/smm/smm_tseg.ld | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/src/cpu/x86/smm/Makefile.inc b/src/cpu/x86/smm/Makefile.inc index 5164970441..a02be49ef4 100644 --- a/src/cpu/x86/smm/Makefile.inc +++ b/src/cpu/x86/smm/Makefile.inc @@ -82,7 +82,7 @@ endif else # CONFIG_SMM_MODULES $(obj)/cpu/x86/smm/smm_wrap: $(obj)/cpu/x86/smm/smm.o $(src)/cpu/x86/smm/$(SMM_LDSCRIPT) - $(LD_smm) $(SMM_LDFLAGS) -nostdlib -nostartfiles -static -o $(obj)/cpu/x86/smm/smm.elf -T $(src)/cpu/x86/smm/$(SMM_LDSCRIPT) $(obj)/cpu/x86/smm/smm.o + $(LD_smm) $(SMM_LDFLAGS) -nostdlib -nostartfiles --gc-sections -static -o $(obj)/cpu/x86/smm/smm.elf -T $(src)/cpu/x86/smm/$(SMM_LDSCRIPT) $(obj)/cpu/x86/smm/smm.o $(NM_smm) -n $(obj)/cpu/x86/smm/smm.elf | sort > $(obj)/cpu/x86/smm/smm.map $(OBJCOPY_smm) -O binary $(obj)/cpu/x86/smm/smm.elf $(obj)/cpu/x86/smm/smm diff --git a/src/cpu/x86/smm/smm.ld b/src/cpu/x86/smm/smm.ld index 6d33fbe984..3fde36e978 100644 --- a/src/cpu/x86/smm/smm.ld +++ b/src/cpu/x86/smm/smm.ld @@ -48,7 +48,7 @@ SECTIONS */ . = 0xa8000 - (( CPUS - 1) * 0x400); .jumptable : { - *(.jumptable) + KEEP(*(.jumptable)); } /DISCARD/ : { diff --git a/src/cpu/x86/smm/smm_tseg.ld b/src/cpu/x86/smm/smm_tseg.ld index 4dedd2c436..49c1a326f7 100644 --- a/src/cpu/x86/smm/smm_tseg.ld +++ b/src/cpu/x86/smm/smm_tseg.ld @@ -19,7 +19,7 @@ SECTIONS */ . = 0x8000 - (( CPUS - 1) * 0x400); .jumptable : { - *(.jumptable) + KEEP(*(.jumptable)); } /* Data used in early SMM TSEG handler. */ |