forked from OSchip/llvm-project
[Sparc] Add support for parsing DW_CFA_GNU_window_save.
llvm-svn: 200127
This commit is contained in:
Venkatraman Govindaraju
parent
046cda538c
commit
a302d29f1d
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@ -123,6 +123,27 @@ public:
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HasError = true;
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return RelocToApply();
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}
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} else if (FileFormat == "ELF32-sparc") {
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switch (RelocType) {
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case llvm::ELF::R_SPARC_32:
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case llvm::ELF::R_SPARC_UA32:
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return visitELF_SPARC_32(R, Value);
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default:
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HasError = true;
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return RelocToApply();
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}
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} else if (FileFormat == "ELF64-sparc") {
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switch (RelocType) {
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case llvm::ELF::R_SPARC_32:
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case llvm::ELF::R_SPARC_UA32:
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return visitELF_SPARCV9_32(R, Value);
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case llvm::ELF::R_SPARC_64:
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case llvm::ELF::R_SPARC_UA64:
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return visitELF_SPARCV9_64(R, Value);
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default:
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HasError = true;
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return RelocToApply();
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}
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}
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HasError = true;
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return RelocToApply();
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@ -272,6 +293,22 @@ private:
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int64_t Addend = getAddend64BE(R);
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return RelocToApply(Value + Addend, 8);
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}
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RelocToApply visitELF_SPARC_32(RelocationRef R, uint32_t Value) {
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int32_t Addend = getAddend32BE(R);
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return RelocToApply(Value + Addend, 4);
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}
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RelocToApply visitELF_SPARCV9_32(RelocationRef R, uint64_t Value) {
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int32_t Addend = getAddend64BE(R);
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return RelocToApply(Value + Addend, 4);
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}
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RelocToApply visitELF_SPARCV9_64(RelocationRef R, uint64_t Value) {
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int64_t Addend = getAddend64BE(R);
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return RelocToApply(Value + Addend, 8);
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}
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};
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}
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@ -125,6 +125,7 @@ void FrameEntry::parseInstructions(uint32_t *Offset, uint32_t EndOffset) {
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case DW_CFA_nop:
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case DW_CFA_remember_state:
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case DW_CFA_restore_state:
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case DW_CFA_GNU_window_save:
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// No operands
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addInstruction(Opcode);
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break;
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@ -0,0 +1,71 @@
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; RUN: llc -filetype=obj -O0 < %s -mtriple sparc64-unknown-linux-gnu | llvm-dwarfdump - | FileCheck %s --check-prefix=SPARC64
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; RUN: llc -filetype=obj -O0 < %s -mtriple sparc-unknown-linux-gnu | llvm-dwarfdump - | FileCheck %s --check-prefix=SPARC32
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; Check for DW_CFA_GNU_Window_save in debug_frame. Also, Ensure that relocations
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; are performed correctly in debug_info.
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; SPARC64: file format ELF64-sparc
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; SPARC64: .debug_info
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; SPARC64: DW_TAG_compile_unit
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; SPARC64: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9,A-F,a-f]+}}] = "hello.c")
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; SPARC64: DW_TAG_subprogram
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; SPARC64: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9,A-F,a-f]+}}] = "main")
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; SPARC64: DW_TAG_base_type
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; SPARC64: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9,A-F,a-f]+}}] = "int")
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; SPARC64: .debug_frame
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; SPARC64: DW_CFA_def_cfa_register
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; SPARC64-NEXT: DW_CFA_GNU_window_save
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; SPARC64-NEXT: DW_CFA_register
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; SPARC32: file format ELF32-sparc
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; SPARC32: .debug_info
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; SPARC32: DW_TAG_compile_unit
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; SPARC32: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9,A-F,a-f]+}}] = "hello.c")
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; SPARC32: DW_TAG_subprogram
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; SPARC32: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9,A-F,a-f]+}}] = "main")
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; SPARC32: DW_TAG_base_type
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; SPARC32: DW_AT_name [DW_FORM_strp] ( .debug_str[0x{{[0-9,A-F,a-f]+}}] = "int")
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; SPARC32: .debug_frame
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; SPARC32: DW_CFA_def_cfa_register
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; SPARC32-NEXT: DW_CFA_GNU_window_save
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; SPARC32-NEXT: DW_CFA_register
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@.str = private unnamed_addr constant [14 x i8] c"hello, world\0A\00", align 1
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; Function Attrs: nounwind
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define signext i32 @main() #0 {
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entry:
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%retval = alloca i32, align 4
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store i32 0, i32* %retval
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%call = call signext i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([14 x i8]* @.str, i32 0, i32 0)), !dbg !12
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ret i32 0, !dbg !13
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}
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declare signext i32 @printf(i8*, ...) #1
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attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!9, !10}
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!llvm.ident = !{!11}
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!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.5 (http://llvm.org/git/clang.git 6a0714fee07fb7c4e32d3972b4fe2ce2f5678cf4) (llvm/ 672e88e934757f76d5c5e5258be41e7615094844)", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [/home/venkatra/work/benchmarks/test/hello/hello.c] [DW_LANG_C99]
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!1 = metadata !{metadata !"hello.c", metadata !"/home/venkatra/work/benchmarks/test/hello"}
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!2 = metadata !{i32 0}
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!3 = metadata !{metadata !4}
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!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 3, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @main, null, null, metadata !2, i32 4} ; [ DW_TAG_subprogram ] [line 3] [def] [scope 4] [main]
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!5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/home/venkatra/work/benchmarks/test/hello/hello.c]
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!6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
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!7 = metadata !{metadata !8}
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!8 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
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!9 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
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!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
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!11 = metadata !{metadata !"clang version 3.5 (http://llvm.org/git/clang.git 6a0714fee07fb7c4e32d3972b4fe2ce2f5678cf4) (llvm/ 672e88e934757f76d5c5e5258be41e7615094844)"}
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!12 = metadata !{i32 5, i32 0, metadata !4, null}
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!13 = metadata !{i32 6, i32 0, metadata !4, null}
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@ -0,0 +1,3 @@
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targets = set(config.root.targets_to_build.split())
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if not 'Sparc' in targets:
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config.unsupported = True
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