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llvm-project/llvm/test/MC/ELF/merge.s

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Replace coff-/elf-dump with llvm-readobj llvm-svn: 179361
2013-04-12 12:06:46 +08:00
// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | llvm-readobj -r | FileCheck %s
Move ELF to HasReliableSymbolDifference=true. Also take the opportunity to put symbols defined in merge sections in independent atoms. llvm-svn: 114786
2010-09-25 13:42:19 +08:00
Completely rewrite ELFObjectWriter::RecordRelocation. I started trying to fix a small issue, but this code has seen a small fix too many. The old code was fairly convoluted. Some of the issues it had: * It failed to check if a symbol difference was in the some section when converting a relocation to pcrel. * It failed to check if the relocation was already pcrel. * The pcrel value computation was wrong in some cases (relocation-pc.s) * It was missing quiet a few cases where it should not convert symbol relocations to section relocations, leaving the backends to patch it up. * It would not propagate the fact that it had changed a relocation to pcrel, requiring a quiet nasty work around in ARM. * It was missing comments. llvm-svn: 205076
2014-03-29 14:26:49 +08:00
// Test that relocations with local symbols in a mergeable section are done
// with a reference to the symbol if the offset is non zero.
Tests that now pass. llvm-svn: 115622
2010-10-05 23:43:32 +08:00
movsd .Lfoo(%rip), %xmm1
movl $.Lfoo, %edi
movl $.Lfoo+2, %edi
Use a relocation against the symbol if it is a PLT and the symbol is in another section. Common because of linkonce sections. llvm-svn: 115718
2010-10-06 07:57:26 +08:00
jmp foo@PLT
Correctly handle GOTPCREL relocations. llvm-svn: 115793
2010-10-07 00:23:36 +08:00
movq foo@GOTPCREL, %rax
If a symbol is global, reloc against it even if it is in a mergeable section. llvm-svn: 115817
2010-10-07 03:27:21 +08:00
movq zed, %rax
Completely rewrite ELFObjectWriter::RecordRelocation. I started trying to fix a small issue, but this code has seen a small fix too many. The old code was fairly convoluted. Some of the issues it had: * It failed to check if a symbol difference was in the some section when converting a relocation to pcrel. * It failed to check if the relocation was already pcrel. * The pcrel value computation was wrong in some cases (relocation-pc.s) * It was missing quiet a few cases where it should not convert symbol relocations to section relocations, leaving the backends to patch it up. * It would not propagate the fact that it had changed a relocation to pcrel, requiring a quiet nasty work around in ARM. * It was missing comments. llvm-svn: 205076
2014-03-29 14:26:49 +08:00
movsd .Lfoo+4(%rip), %xmm1
Tests that now pass. llvm-svn: 115622
2010-10-05 23:43:32 +08:00
Move ELF to HasReliableSymbolDifference=true. Also take the opportunity to put symbols defined in merge sections in independent atoms. llvm-svn: 114786
2010-09-25 13:42:19 +08:00
.section .sec1,"aM",@progbits,16
.Lfoo:
If a symbol is global, reloc against it even if it is in a mergeable section. llvm-svn: 115817
2010-10-07 03:27:21 +08:00
zed:
.global zed
Move ELF to HasReliableSymbolDifference=true. Also take the opportunity to put symbols defined in merge sections in independent atoms. llvm-svn: 114786
2010-09-25 13:42:19 +08:00
Use a relocation against the symbol if it is a PLT and the symbol is in another section. Common because of linkonce sections. llvm-svn: 115718
2010-10-06 07:57:26 +08:00
.section bar,"ax",@progbits
foo:
Replace coff-/elf-dump with llvm-readobj llvm-svn: 179361
2013-04-12 12:06:46 +08:00
// CHECK: Relocations [
Update tests to not be as dependent on section numbers. Many of these predate llvm-readobj. With elf-dump we had to match a relocation to symbol number and symbol number to symbol name or section number. llvm-svn: 235015
2015-04-15 23:59:37 +08:00
// CHECK-NEXT: Section {{.*}} .rela.text {
Revert r240302 ("Bring r240130 back."). This causes errors like: ld: error: blah.o: requires dynamic R_X86_64_PC32 reloc against '' which may overflow at runtime; recompile with -fPIC blah.cc:function f(): error: undefined reference to '' blah.o:g(): error: undefined reference to '' I have not yet come up with an appropriate reproduction. llvm-svn: 240394
2015-06-23 19:31:32 +08:00
// CHECK-NEXT: 0x{{[^ ]+}} R_X86_64_PC32 .Lfoo 0x{{[^ ]+}}
Replace coff-/elf-dump with llvm-readobj llvm-svn: 179361
2013-04-12 12:06:46 +08:00
// CHECK-NEXT: 0x{{[^ ]+}} R_X86_64_32 .sec1 0x{{[^ ]+}}
Revert r240302 ("Bring r240130 back."). This causes errors like: ld: error: blah.o: requires dynamic R_X86_64_PC32 reloc against '' which may overflow at runtime; recompile with -fPIC blah.cc:function f(): error: undefined reference to '' blah.o:g(): error: undefined reference to '' I have not yet come up with an appropriate reproduction. llvm-svn: 240394
2015-06-23 19:31:32 +08:00
// CHECK-NEXT: 0x{{[^ ]+}} R_X86_64_32 .Lfoo 0x{{[^ ]+}}
Replace coff-/elf-dump with llvm-readobj llvm-svn: 179361
2013-04-12 12:06:46 +08:00
// CHECK-NEXT: 0x{{[^ ]+}} R_X86_64_PLT32 foo 0x{{[^ ]+}}
// CHECK-NEXT: 0x{{[^ ]+}} R_X86_64_GOTPCREL foo 0x{{[^ ]+}}
// CHECK-NEXT: 0x{{[^ ]+}} R_X86_64_32S zed 0x{{[^ ]+}}
Completely rewrite ELFObjectWriter::RecordRelocation. I started trying to fix a small issue, but this code has seen a small fix too many. The old code was fairly convoluted. Some of the issues it had: * It failed to check if a symbol difference was in the some section when converting a relocation to pcrel. * It failed to check if the relocation was already pcrel. * The pcrel value computation was wrong in some cases (relocation-pc.s) * It was missing quiet a few cases where it should not convert symbol relocations to section relocations, leaving the backends to patch it up. * It would not propagate the fact that it had changed a relocation to pcrel, requiring a quiet nasty work around in ARM. * It was missing comments. llvm-svn: 205076
2014-03-29 14:26:49 +08:00
// CHECK-NEXT: 0x{{[^ ]+}} R_X86_64_PC32 .sec1 0x{{[^ ]+}}
Replace coff-/elf-dump with llvm-readobj llvm-svn: 179361
2013-04-12 12:06:46 +08:00
// CHECK-NEXT: }
// CHECK-NEXT: ]