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[ELF][test] Test identical CIE content with different personality 

If we change
CieRecord *&rec = cieMap[{cie.data(), personality}];
to
CieRecord *&rec = cieMap[{cie.data(), nullptr}];

The new test can catch the failure.
This commit is contained in:
Fangrui Song 2022-07-31 13:43:07 -07:00
parent 17df74214c
commit a9c5d09c5e
1 changed files with 47 additions and 10 deletions
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57
lld/test/ELF/eh-frame-multilpe-cie.s
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@ -1,13 +1,50 @@
// REQUIRES: x86
// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=x86_64-pc-linux
// RUN: ld.lld --eh-frame-hdr %t.o -o /dev/null -shared
// We would fail to parse multiple cies in the same file.
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64 %s -o %t.o
# RUN: ld.lld --eh-frame-hdr -shared %t.o -o %t.so
# RUN: llvm-dwarfdump --eh-frame %t.so | FileCheck %s
.cfi_startproc
.cfi_personality 0x9b, foo
.cfi_endproc
# CHECK: 00000000 00000014 00000000 CIE
# CHECK: Augmentation:
# CHECK-SAME: "zR"
.cfi_startproc
.cfi_endproc
# CHECK: 00000018 00000014 0000001c FDE cie=00000000 {{.*}}
foo:
# CHECK: 00000030 0000001c 00000000 CIE
# CHECK: Augmentation:
# CHECK-SAME: "zPR"
# CHECK: Personality Address:
# CHECK: 00000050 00000014 00000024 FDE cie=00000030 {{.*}}
# CHECK: 00000068 0000001c 00000000 CIE
# CHECK: Augmentation:
# CHECK-SAME: "zPR"
# CHECK: Personality Address:
# CHECK: 00000088 00000014 00000024 FDE cie=00000068 {{.*}}
foo0:
.cfi_startproc
.cfi_personality 0x9b, personality0
ret
.cfi_endproc
## This CIE cannot be merged into the previous one because the Personality is different.
foo1:
.cfi_startproc
.cfi_personality 0x9b, personality1
ret
.cfi_endproc
bar:
.cfi_startproc
ret
.cfi_endproc
.globl personality0, personality1
.hidden personality0, personality1
personality0:
ret
personality1:
ret