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Initial .cfi_offset implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122611 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -191,6 +191,13 @@ bool MCStreamer::EmitCFIDefCfaRegister(int64_t Register) {
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bool MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
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bool MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
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EnsureValidFrame();
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EnsureValidFrame();
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MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
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MCSymbol *Label = getContext().CreateTempSymbol();
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EmitLabel(Label);
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MachineLocation Dest(Register, Offset);
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MachineLocation Source(Register, Offset);
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MCCFIInstruction Instruction(Label, Dest, Source);
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CurFrame->Instructions.push_back(Instruction);
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return false;
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return false;
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}
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}
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42
test/MC/ELF/cfi-offset.s
Normal file
42
test/MC/ELF/cfi-offset.s
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@ -0,0 +1,42 @@
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// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | elf-dump --dump-section-data | FileCheck %s
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f:
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.cfi_startproc
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nop
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.cfi_offset 6, -16
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nop
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.cfi_endproc
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// CHECK: (('sh_name', 0x00000012) # '.eh_frame'
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// CHECK-NEXT: ('sh_type', 0x00000001)
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// CHECK-NEXT: ('sh_flags', 0x00000002)
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// CHECK-NEXT: ('sh_addr', 0x00000000)
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// CHECK-NEXT: ('sh_offset', 0x00000048)
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// CHECK-NEXT: ('sh_size', 0x00000030)
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// CHECK-NEXT: ('sh_link', 0x00000000)
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// CHECK-NEXT: ('sh_info', 0x00000000)
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// CHECK-NEXT: ('sh_addralign', 0x00000008)
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// CHECK-NEXT: ('sh_entsize', 0x00000000)
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// CHECK-NEXT: ('_section_data', '14000000 00000000 017a5200 01781001 1b0c0708 90010000 14000000 1c000000 00000000 02000000 00418602 00000000')
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// CHECK-NEXT: ),
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// CHECK: (('sh_name', 0x00000036) # '.rela.eh_frame'
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// CHECK-NEXT: ('sh_type', 0x00000004)
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// CHECK-NEXT: ('sh_flags', 0x00000000)
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// CHECK-NEXT: ('sh_addr', 0x00000000)
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// CHECK-NEXT: ('sh_offset', 0x00000158)
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// CHECK-NEXT: ('sh_size', 0x00000018)
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// CHECK-NEXT: ('sh_link', 0x00000006)
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// CHECK-NEXT: ('sh_info', 0x00000004)
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// CHECK-NEXT: ('sh_addralign', 0x00000008)
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// CHECK-NEXT: ('sh_entsize', 0x00000018)
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// CHECK-NEXT: ('_relocations', [
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// CHECK-NEXT: # Relocation 0x00000000
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// CHECK-NEXT: (('r_offset', 0x00000020)
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// CHECK-NEXT: ('r_sym', 0x00000002)
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// CHECK-NEXT: ('r_type', 0x00000002)
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// CHECK-NEXT: ('r_addend', 0x00000000)
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// CHECK-NEXT: ),
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// CHECK-NEXT: ])
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// CHECK-NEXT: ),
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