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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2010-12-29 00:26:06 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2010-12-29 00:26:06 +0000 |
| commit | b4601bd2ffdde372f1323f6b6ec98acd433501ce (patch) | |
| tree | b5e454392bb552150d9b4d19da833ae5bc21174e | |
| parent | b790a17efba26f4365b5ffb847dd53fde063c48d (diff) | |
| download | external_llvm-b4601bd2ffdde372f1323f6b6ec98acd433501ce.zip external_llvm-b4601bd2ffdde372f1323f6b6ec98acd433501ce.tar.gz external_llvm-b4601bd2ffdde372f1323f6b6ec98acd433501ce.tar.bz2 | |
Implement cfi_def_cfa_register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122612 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/MC/MCStreamer.cpp | 8 | ||||
| -rw-r--r-- | test/MC/ELF/cfi-def-cfa-register.s | 41 |
2 files changed, 49 insertions, 0 deletions
diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp index f5e0d20..4d7d486 100644 --- a/lib/MC/MCStreamer.cpp +++ b/lib/MC/MCStreamer.cpp @@ -186,6 +186,14 @@ bool MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) { bool MCStreamer::EmitCFIDefCfaRegister(int64_t Register) { EnsureValidFrame(); + MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); + MCSymbol *Label = getContext().CreateTempSymbol(); + EmitLabel(Label); + MachineLocation Dest(Register); + MachineLocation Source(MachineLocation::VirtualFP); + MCCFIInstruction Instruction(Label, Dest, Source); + CurFrame->Instructions.push_back(Instruction); + return false; return false; } diff --git a/test/MC/ELF/cfi-def-cfa-register.s b/test/MC/ELF/cfi-def-cfa-register.s new file mode 100644 index 0000000..3df2021 --- /dev/null +++ b/test/MC/ELF/cfi-def-cfa-register.s @@ -0,0 +1,41 @@ +// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | elf-dump --dump-section-data | FileCheck %s + +f: + .cfi_startproc + nop + .cfi_def_cfa_register 6 + nop + .cfi_endproc + +// CHECK: (('sh_name', 0x00000012) # '.eh_frame' +// CHECK-NEXT: ('sh_type', 0x00000001) +// CHECK-NEXT: ('sh_flags', 0x00000002) +// CHECK-NEXT: ('sh_addr', 0x00000000) +// CHECK-NEXT: ('sh_offset', 0x00000048) +// CHECK-NEXT: ('sh_size', 0x00000030) +// CHECK-NEXT: ('sh_link', 0x00000000) +// CHECK-NEXT: ('sh_info', 0x00000000) +// CHECK-NEXT: ('sh_addralign', 0x00000008) +// CHECK-NEXT: ('sh_entsize', 0x00000000) +// CHECK-NEXT: ('_section_data', '14000000 00000000 017a5200 01781001 1b0c0708 90010000 14000000 1c000000 00000000 02000000 00410d06 00000000') +// CHECK-NEXT: ), + +// CHECK: (('sh_name', 0x00000036) # '.rela.eh_frame' +// CHECK-NEXT: ('sh_type', 0x00000004) +// CHECK-NEXT: ('sh_flags', 0x00000000) +// CHECK-NEXT: ('sh_addr', 0x00000000) +// CHECK-NEXT: ('sh_offset', 0x00000158) +// CHECK-NEXT: ('sh_size', 0x00000018) +// CHECK-NEXT: ('sh_link', 0x00000006) +// CHECK-NEXT: ('sh_info', 0x00000004) +// CHECK-NEXT: ('sh_addralign', 0x00000008) +// CHECK-NEXT: ('sh_entsize', 0x00000018) +// CHECK-NEXT: ('_relocations', [ +// CHECK-NEXT: # Relocation 0x00000000 +// CHECK-NEXT: (('r_offset', 0x00000020) +// CHECK-NEXT: ('r_sym', 0x00000002) +// CHECK-NEXT: ('r_type', 0x00000002) +// CHECK-NEXT: ('r_addend', 0x00000000) +// CHECK-NEXT: ), +// CHECK-NEXT: ]) +// CHECK-NEXT: ), |