uabelho added a comment.
Hi,
I noticed that on one of our downstream (not public) buildbots the
clang/test/Driver/femit-dwarf-unwind.s
test seems to fail rather randomly.
So if I run
clang -target x86_64-apple-macos11.0 -c
../clang/test/Driver/femit-dwarf-unwind.s -o foo.o
llvm-objdump --macho --dwarf=frames foo.o
a couple of times I sometimes get
.debug_frame contents:
.eh_frame contents:
and sometimes I get
.debug_frame contents:
.eh_frame contents:
00000000 00000014 00000000 CIE
Format: DWARF32
Version: 1
Augmentation: "zR"
Code alignment factor: 1
Data alignment factor: -8
Return address column: 16
Augmentation data: 10
DW_CFA_def_cfa: reg7 +8
DW_CFA_offset: reg16 -8
DW_CFA_nop:
DW_CFA_nop:
CFA=reg7+8: reg16=[CFA-8]
00000018 0000001c 0000001c FDE cie=00000000 pc=00000000...00000001
Format: DWARF32
DW_CFA_def_cfa_offset: +8
DW_CFA_nop:
DW_CFA_nop:
DW_CFA_nop:
DW_CFA_nop:
DW_CFA_nop:
0x0: CFA=reg7+8: reg16=[CFA-8]
On another machine I don't seem to get that problem though, even if I compile
in the same way so I really don't know what the difference is or why it is
happening at all.
Any ideas? Anything anyone else is seeing?
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D122258/new/
https://reviews.llvm.org/D122258
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