diff options
| author | Roland McGrath <roland@redhat.com> | 2010-05-13 21:43:03 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-05-13 22:15:18 -0700 |
| commit | 9e565292270a2d55524be38835104c564ac8f795 (patch) | |
| tree | a4a2c6e5b2013e142b866b1f4dcca44a8f7384a4 /arch/x86/Makefile | |
| parent | 5967ed87ade85a421ef814296c3c7f182b08c225 (diff) | |
x86: Use .cfi_sections for assembly code
The newer assemblers support the .cfi_sections directive so we can put
the CFI from .S files into the .debug_frame section that is preserved
in unstripped vmlinux and in separate debuginfo, rather than the
.eh_frame section that is now discarded by vmlinux.lds.S.
Signed-off-by: Roland McGrath <roland@redhat.com>
LKML-Reference: <20100514044303.A6FE7400BE@magilla.sf.frob.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/Makefile')
| -rw-r--r-- | arch/x86/Makefile | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 0a43dc515e4c..8aa1b59b9074 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -95,8 +95,9 @@ sp-$(CONFIG_X86_64) := rsp cfi := $(call as-instr,.cfi_startproc\n.cfi_rel_offset $(sp-y)$(comma)0\n.cfi_endproc,-DCONFIG_AS_CFI=1) # is .cfi_signal_frame supported too? cfi-sigframe := $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1) -KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) -KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) +cfi-sections := $(call as-instr,.cfi_sections .debug_frame,-DCONFIG_AS_CFI_SECTIONS=1) +KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) +KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) LDFLAGS := -m elf_$(UTS_MACHINE) |