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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2010-10-03 00:46:57 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2010-10-03 00:46:57 +0000 |
| commit | 9d8b7555cde8b9722dd6f8dc77c627bae0718c67 (patch) | |
| tree | 23ff50f123272db9a40efb7f0f9fb298572a4fe3 | |
| parent | 11bfe3e5bf5a7c37a9f665ba5e825e00a8837f2c (diff) | |
Implement a very basic PIC case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115454 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/MC/ELFObjectWriter.cpp | 7 | ||||
| -rw-r--r-- | test/MC/ELF/pic-diff.s | 25 |
2 files changed, 32 insertions, 0 deletions
diff --git a/lib/MC/ELFObjectWriter.cpp b/lib/MC/ELFObjectWriter.cpp index 1890da72e0..614e396713 100644 --- a/lib/MC/ELFObjectWriter.cpp +++ b/lib/MC/ELFObjectWriter.cpp @@ -535,6 +535,13 @@ void ELFObjectWriterImpl::RecordRelocation(const MCAssembler &Asm, MCSymbolData &SD = Asm.getSymbolData(*Symbol); MCFragment *F = SD.getFragment(); + if (const MCSymbolRefExpr *RefB = Target.getSymB()) { + const MCSymbol &SymbolB = RefB->getSymbol(); + MCSymbolData &SDB = Asm.getSymbolData(SymbolB); + IsPCRel = true; + Value += Fixup.getOffset() - Layout.getSymbolAddress(&SDB); + } + // Check that this case has already been fully resolved before we get // here. if (Symbol->isDefined() && !SD.isExternal() && diff --git a/test/MC/ELF/pic-diff.s b/test/MC/ELF/pic-diff.s new file mode 100644 index 0000000000..155754717a --- /dev/null +++ b/test/MC/ELF/pic-diff.s @@ -0,0 +1,25 @@ +// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | elf-dump | FileCheck %s + +// CHECK: # Symbol 5 +// CHECK-NEXT: (('st_name', 5) # 'baz' +// CHECK-NEXT: ('st_bind', 1) +// CHECK-NEXT: ('st_type', 0) +// CHECK-NEXT: ('st_other', 0) +// CHECK-NEXT: ('st_shndx', 0) +// CHECK-NEXT: ('st_value', 0) +// CHECK-NEXT: ('st_size', 0) +// CHECK-NEXT: ), + +// CHECK: ('_relocations', [ +// CHECK-NEXT: # Relocation 0 +// CHECK-NEXT: (('r_offset', 12) +// CHECK-NEXT: ('r_sym', 5) +// CHECK-NEXT: ('r_type', 2) +// CHECK-NEXT: ('r_addend', 8) +// CHECK-NEXT: ), +// CHECK-NEXT: ]) + +.zero 4 +foo: +.zero 8 +.long baz - foo |