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llvm-project/lld/test/ELF/linkerscript/emit-reloc.s

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Ignore relocation sections in linker scripts. Unfortunately, the common way of writing linker scripts seems to be to get the output of ld.bfd --verbose and edit it a bit. Also unfortunately, the bfd default script contains things like .rela.dyn : { *(... .rela.data ...) } but bfd actually ignores that for -emit-relocs, so we have to do the same. llvm-svn: 295324
2017-02-16 22:36:09 +08:00
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
# RUN: echo "SECTIONS { .rela.dyn : { *(.rela.data) } }" > %t.script
[ELF] - Do --hash-style=both by default. Its PR34712, GNU linkers recently changed default values to "both" of "sysv". Patch do the same for all targets except MIPS, where .gnu.hash section is not yet supported. Code suggested by Rui Ueyama. Differential revision: https://reviews.llvm.org/D38407 llvm-svn: 315051
2017-10-06 17:37:44 +08:00
# RUN: ld.lld --hash-style=sysv -T %t.script --emit-relocs %t.o -o %t.so -shared
Ignore relocation sections in linker scripts. Unfortunately, the common way of writing linker scripts seems to be to get the output of ld.bfd --verbose and edit it a bit. Also unfortunately, the bfd default script contains things like .rela.dyn : { *(... .rela.data ...) } but bfd actually ignores that for -emit-relocs, so we have to do the same. llvm-svn: 295324
2017-02-16 22:36:09 +08:00
# RUN: llvm-readobj -r %t.so | FileCheck %s
.data
.quad .foo
# CHECK: Relocations [
# CHECK-NEXT: Section ({{.*}}) .rela.dyn {
[lld] Mitigate relocation overflow [part 1 of 2]. This CL places .dynsym and .dynstr at the beginning of SHF_ALLOC sections. We do this to mitigate the possibility that huge .dynsym and .dynstr sections placed between ro-data and text sections cause relocation overflow. Differential Revision: https://reviews.llvm.org/D45788 llvm-svn: 332374
2018-05-16 01:02:35 +08:00
# CHECK-NEXT: 0x68 R_X86_64_64 .foo 0x0
Ignore relocation sections in linker scripts. Unfortunately, the common way of writing linker scripts seems to be to get the output of ld.bfd --verbose and edit it a bit. Also unfortunately, the bfd default script contains things like .rela.dyn : { *(... .rela.data ...) } but bfd actually ignores that for -emit-relocs, so we have to do the same. llvm-svn: 295324
2017-02-16 22:36:09 +08:00
# CHECK-NEXT: }
# CHECK-NEXT: Section ({{.*}}) .rela.data {
[lld] Mitigate relocation overflow [part 1 of 2]. This CL places .dynsym and .dynstr at the beginning of SHF_ALLOC sections. We do this to mitigate the possibility that huge .dynsym and .dynstr sections placed between ro-data and text sections cause relocation overflow. Differential Revision: https://reviews.llvm.org/D45788 llvm-svn: 332374
2018-05-16 01:02:35 +08:00
# CHECK-NEXT: 0x68 R_X86_64_64 .foo 0x0
Ignore relocation sections in linker scripts. Unfortunately, the common way of writing linker scripts seems to be to get the output of ld.bfd --verbose and edit it a bit. Also unfortunately, the bfd default script contains things like .rela.dyn : { *(... .rela.data ...) } but bfd actually ignores that for -emit-relocs, so we have to do the same. llvm-svn: 295324
2017-02-16 22:36:09 +08:00
# CHECK-NEXT: }
# CHECK-NEXT: ]