diff options
| author | dim <dim@FreeBSD.org> | 2015-12-30 13:13:10 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2015-12-30 13:13:10 +0000 |
| commit | 9b5bf5c4f53d65d6a48722d7410ed7cb15f5ba3a (patch) | |
| tree | b466a4817f79516eb1df8eae92bccf62ecc84003 /contrib/llvm/lib/DebugInfo/DWARF/DWARFDebugMacro.cpp | |
| parent | f09a28d1de99fda4f5517fb12670fc36552f4927 (diff) | |
| parent | e194cd6d03d91631334d9d5e55b506036f423cc8 (diff) | |
| download | FreeBSD-src-9b5bf5c4f53d65d6a48722d7410ed7cb15f5ba3a.zip FreeBSD-src-9b5bf5c4f53d65d6a48722d7410ed7cb15f5ba3a.tar.gz | |
Update llvm to trunk r256633.
Diffstat (limited to 'contrib/llvm/lib/DebugInfo/DWARF/DWARFDebugMacro.cpp')
| -rw-r--r-- | contrib/llvm/lib/DebugInfo/DWARF/DWARFDebugMacro.cpp | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/contrib/llvm/lib/DebugInfo/DWARF/DWARFDebugMacro.cpp b/contrib/llvm/lib/DebugInfo/DWARF/DWARFDebugMacro.cpp new file mode 100644 index 0000000..b6555fa --- /dev/null +++ b/contrib/llvm/lib/DebugInfo/DWARF/DWARFDebugMacro.cpp @@ -0,0 +1,103 @@ +//===-- DWARFDebugMacro.cpp -----------------------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "SyntaxHighlighting.h"
+#include "llvm/DebugInfo/DWARF/DWARFDebugMacro.h"
+#include "llvm/Support/Compiler.h"
+#include "llvm/Support/Dwarf.h"
+#include "llvm/Support/Format.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+using namespace dwarf;
+using namespace syntax;
+
+void DWARFDebugMacro::dump(raw_ostream &OS) const {
+ unsigned IndLevel = 0;
+ for (const Entry &E : Macros) {
+ // There should not be DW_MACINFO_end_file when IndLevel is Zero. However,
+ // this check handles the case of corrupted ".debug_macinfo" section.
+ if (IndLevel > 0)
+ IndLevel -= (E.Type == DW_MACINFO_end_file);
+ // Print indentation.
+ for (unsigned I = 0; I < IndLevel; I++)
+ OS << " ";
+ IndLevel += (E.Type == DW_MACINFO_start_file);
+
+ WithColor(OS, syntax::Macro).get() << MacinfoString(E.Type);
+ switch (E.Type) {
+ default:
+ // Got a corrupted ".debug_macinfo" section (invalid macinfo type).
+ break;
+ case DW_MACINFO_define:
+ case DW_MACINFO_undef:
+ OS << " - lineno: " << E.Line;
+ OS << " macro: " << E.MacroStr;
+ break;
+ case DW_MACINFO_start_file:
+ OS << " - lineno: " << E.Line;
+ OS << " filenum: " << E.File;
+ break;
+ case DW_MACINFO_end_file:
+ break;
+ case DW_MACINFO_vendor_ext:
+ OS << " - constant: " << E.ExtConstant;
+ OS << " string: " << E.ExtStr;
+ break;
+ }
+ OS << "\n";
+ }
+}
+
+void DWARFDebugMacro::parse(DataExtractor data) {
+ uint32_t Offset = 0;
+ while (data.isValidOffset(Offset)) {
+ // A macro list entry consists of:
+ Entry E;
+ // 1. Macinfo type
+ E.Type = data.getULEB128(&Offset);
+
+ if (E.Type == 0) {
+ // Reached end of ".debug_macinfo" section.
+ return;
+ }
+
+ switch (E.Type) {
+ default:
+ // Got a corrupted ".debug_macinfo" section (invalid macinfo type).
+ // Push the corrupted entry to the list and halt parsing.
+ E.Type = DW_MACINFO_invalid;
+ Macros.push_back(E);
+ return;
+ case DW_MACINFO_define:
+ case DW_MACINFO_undef:
+ // 2. Source line
+ E.Line = data.getULEB128(&Offset);
+ // 3. Macro string
+ E.MacroStr = data.getCStr(&Offset);
+ break;
+ case DW_MACINFO_start_file:
+ // 2. Source line
+ E.Line = data.getULEB128(&Offset);
+ // 3. Source file id
+ E.File = data.getULEB128(&Offset);
+ break;
+ case DW_MACINFO_end_file:
+ break;
+ case DW_MACINFO_vendor_ext:
+ // 2. Vendor extension constant
+ E.ExtConstant = data.getULEB128(&Offset);
+ // 3. Vendor extension string
+ E.ExtStr = data.getCStr(&Offset);
+ break;
+ }
+
+ Macros.push_back(E);
+ }
+}
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