maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/lld/test/ELF/copy-rel-version.s

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

16 lines
485 B
ArmAsm
Raw Normal View History

[ELF] Fix copy relocation when two symbols share the same Symbol instance. In glibc libc.so.6, the multiple versions of sys_errlist share the same Symbol instance. When sys_errlist is copy relocated, we would replace SharedSymbol with Defined in the first iteration of the following loop: for (SharedSymbol *Sym : getSymbolsAt<ELFT>(SS)) Then in the second iteration, we think the symbol (which has been changed to Defined) is still SharedSymbol and screw up (the address ends up in the `Size` field). llvm-svn: 334432
2018-06-12 03:42:57 +08:00
// REQUIRES: x86
// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/copy-rel-version.s -o %t1.o
// RUN: echo "v1 {}; v2 {};" > %t.ver
// RUN: ld.lld %t1.o -shared -soname t1.so --version-script=%t.ver -o %t1.so
// RUN: ld.lld %t.o %t1.so -o %t
[test] Change llvm-readobj -long-option to --long-option or well-known short options. NFC Also change some options that have different semantics (cause confusion) in llvm-readelf mode: -s => -S -t => --symbols -sd => --section-data llvm-svn: 359651
2019-05-01 13:49:01 +08:00
// RUN: llvm-readobj --symbols %t | FileCheck %s
[ELF] Fix copy relocation when two symbols share the same Symbol instance. In glibc libc.so.6, the multiple versions of sys_errlist share the same Symbol instance. When sys_errlist is copy relocated, we would replace SharedSymbol with Defined in the first iteration of the following loop: for (SharedSymbol *Sym : getSymbolsAt<ELFT>(SS)) Then in the second iteration, we think the symbol (which has been changed to Defined) is still SharedSymbol and screw up (the address ends up in the `Size` field). llvm-svn: 334432
2018-06-12 03:42:57 +08:00
.global _start
_start:
leaq foo, %rax
// CHECK: Name: foo (
// CHECK-NEXT: Value:
// CHECK-NEXT: Size: 8