在 2022/7/29 上午11:18, Xi Ruoyao 写道:
On Fri, 2022-07-29 at 10:43 +0800, Lulu Cheng wrote:
.eh_frame DW_EH_PE_pcrel encoding format is not supported by gas <= 2.39.
Check if the assembler support DW_EH_PE_PCREL encoding and define .eh_frame
encoding type.
gcc/ChangeLog:
* config.in: Regenerate.
* config/loongarch/loongarch.h (ASM_PREFERRED_EH_DATA_FORMAT):
Select the value of the macro definition according to whether
HAVE_AS_EH_FRAME_PCREL_ENCODING_SUPPORT is defined.
* configure: Regenerate.
* configure.ac: Reinstate HAVE_AS_EH_FRAME_PCREL_ENCODING_SUPPORT test.
To me it looks a little strange to list regenerated config.in &
configure before configure.ac. But maybe I'm wrong here if a
lexicographical order is preferred...
This information is generated by me through the git gcc-commit-mklog
command, then I didn't move the sequence.
/* snip */
+ gcc_GAS_CHECK_FEATURE([eh_frame pcrel encoding support],
+ gcc_cv_as_loongarch_eh_frame_pcrel_encoding_support,,
+ [.LFB1780 = .
+ .cfi_startproc
+ .cfi_personality 0x9b,DW.ref.__gxx_personality_v0
+ .cfi_lsda 0x1b,.LLSDA1780
+ .cfi_endproc],,
I think the conftest content can be simplified to:
.cfi_startproc
.cfi_personality 0x9b,a
.cfi_lsda 0x1b,b
.cfi_endproc
This one looks more concise, I'll change it
