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-rw-r--r--contrib/llvm/lib/DebugInfo/DWARFDebugInfoEntry.cpp147
1 files changed, 123 insertions, 24 deletions
diff --git a/contrib/llvm/lib/DebugInfo/DWARFDebugInfoEntry.cpp b/contrib/llvm/lib/DebugInfo/DWARFDebugInfoEntry.cpp
index 2e7a54a..01ff52f 100644
--- a/contrib/llvm/lib/DebugInfo/DWARFDebugInfoEntry.cpp
+++ b/contrib/llvm/lib/DebugInfo/DWARFDebugInfoEntry.cpp
@@ -7,20 +7,33 @@
//
//===----------------------------------------------------------------------===//
-#include "DWARFDebugInfoEntry.h"
-#include "DWARFCompileUnit.h"
-#include "DWARFContext.h"
-#include "DWARFDebugAbbrev.h"
+#include "SyntaxHighlighting.h"
+#include "llvm/DebugInfo/DWARFCompileUnit.h"
+#include "llvm/DebugInfo/DWARFContext.h"
+#include "llvm/DebugInfo/DWARFDebugAbbrev.h"
+#include "llvm/DebugInfo/DWARFDebugInfoEntry.h"
#include "llvm/DebugInfo/DWARFFormValue.h"
+#include "llvm/Support/DataTypes.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
using namespace dwarf;
-typedef DILineInfoSpecifier::FunctionNameKind FunctionNameKind;
+using namespace syntax;
+
+// Small helper to extract a DIE pointed by a reference
+// attribute. It looks up the Unit containing the DIE and calls
+// DIE.extractFast with the right unit. Returns new unit on success,
+// nullptr otherwise.
+static const DWARFUnit *findUnitAndExtractFast(DWARFDebugInfoEntryMinimal &DIE,
+ const DWARFUnit *Unit,
+ uint32_t *Offset) {
+ Unit = Unit->getUnitSection().getUnitForOffset(*Offset);
+ return (Unit && DIE.extractFast(Unit, Offset)) ? Unit : nullptr;
+}
-void DWARFDebugInfoEntryMinimal::dump(raw_ostream &OS, const DWARFUnit *u,
+void DWARFDebugInfoEntryMinimal::dump(raw_ostream &OS, DWARFUnit *u,
unsigned recurseDepth,
unsigned indent) const {
DataExtractor debug_info_data = u->getDebugInfoExtractor();
@@ -28,15 +41,17 @@ void DWARFDebugInfoEntryMinimal::dump(raw_ostream &OS, const DWARFUnit *u,
if (debug_info_data.isValidOffset(offset)) {
uint32_t abbrCode = debug_info_data.getULEB128(&offset);
+ WithColor(OS, syntax::Address).get() << format("\n0x%8.8x: ", Offset);
- OS << format("\n0x%8.8x: ", Offset);
if (abbrCode) {
if (AbbrevDecl) {
- const char *tagString = TagString(getTag());
- if (tagString)
- OS.indent(indent) << tagString;
- else
- OS.indent(indent) << format("DW_TAG_Unknown_%x", getTag());
+ const char *tagString = TagString(getTag());
+ if (tagString)
+ WithColor(OS, syntax::Tag).get().indent(indent) << tagString;
+ else
+ WithColor(OS, syntax::Tag).get().indent(indent) <<
+ format("DW_TAG_Unknown_%x", getTag());
+
OS << format(" [%u] %c\n", abbrCode,
AbbrevDecl->hasChildren() ? '*' : ' ');
@@ -62,18 +77,51 @@ void DWARFDebugInfoEntryMinimal::dump(raw_ostream &OS, const DWARFUnit *u,
}
}
+static void dumpApplePropertyAttribute(raw_ostream &OS, uint64_t Val) {
+ OS << " (";
+ do {
+ uint64_t Shift = countTrailingZeros(Val);
+ assert(Shift < 64 && "undefined behavior");
+ uint64_t Bit = 1ULL << Shift;
+ if (const char *PropName = ApplePropertyString(Bit))
+ OS << PropName;
+ else
+ OS << format("DW_APPLE_PROPERTY_0x%" PRIx64, Bit);
+ if (!(Val ^= Bit))
+ break;
+ OS << ", ";
+ } while (true);
+ OS << ")";
+}
+
+static void dumpRanges(raw_ostream &OS, const DWARFAddressRangesVector& Ranges,
+ unsigned AddressSize, unsigned Indent) {
+ if (Ranges.empty())
+ return;
+
+ for (const auto &Range: Ranges) {
+ OS << '\n';
+ OS.indent(Indent);
+ OS << format("[0x%0*" PRIx64 " - 0x%0*" PRIx64 ")",
+ AddressSize*2, Range.first,
+ AddressSize*2, Range.second);
+ }
+}
+
void DWARFDebugInfoEntryMinimal::dumpAttribute(raw_ostream &OS,
- const DWARFUnit *u,
+ DWARFUnit *u,
uint32_t *offset_ptr,
uint16_t attr, uint16_t form,
unsigned indent) const {
- OS << " ";
+ const char BaseIndent[] = " ";
+ OS << BaseIndent;
OS.indent(indent+2);
const char *attrString = AttributeString(attr);
if (attrString)
- OS << attrString;
+ WithColor(OS, syntax::Attribute) << attrString;
else
- OS << format("DW_AT_Unknown_%x", attr);
+ WithColor(OS, syntax::Attribute).get() << format("DW_AT_Unknown_%x", attr);
+
const char *formString = FormEncodingString(form);
if (formString)
OS << " [" << formString << ']';
@@ -86,7 +134,49 @@ void DWARFDebugInfoEntryMinimal::dumpAttribute(raw_ostream &OS,
return;
OS << "\t(";
- formValue.dump(OS, u);
+
+ const char *Name = nullptr;
+ std::string File;
+ auto Color = syntax::Enumerator;
+ if (attr == DW_AT_decl_file || attr == DW_AT_call_file) {
+ Color = syntax::String;
+ if (const auto *LT = u->getContext().getLineTableForUnit(u))
+ if (LT->getFileNameByIndex(
+ formValue.getAsUnsignedConstant().getValue(),
+ u->getCompilationDir(),
+ DILineInfoSpecifier::FileLineInfoKind::AbsoluteFilePath, File)) {
+ File = '"' + File + '"';
+ Name = File.c_str();
+ }
+ } else if (Optional<uint64_t> Val = formValue.getAsUnsignedConstant())
+ Name = AttributeValueString(attr, *Val);
+
+ if (Name)
+ WithColor(OS, Color) << Name;
+ else if (attr == DW_AT_decl_line || attr == DW_AT_call_line)
+ OS << *formValue.getAsUnsignedConstant();
+ else
+ formValue.dump(OS, u);
+
+ // We have dumped the attribute raw value. For some attributes
+ // having both the raw value and the pretty-printed value is
+ // interesting. These attributes are handled below.
+ if ((attr == DW_AT_specification || attr == DW_AT_abstract_origin) &&
+ // The signature references aren't handled.
+ formValue.getForm() != DW_FORM_ref_sig8) {
+ uint32_t Ref = formValue.getAsReference(u).getValue();
+ DWARFDebugInfoEntryMinimal DIE;
+ if (const DWARFUnit *RefU = findUnitAndExtractFast(DIE, u, &Ref))
+ if (const char *Ref = DIE.getName(RefU, DINameKind::LinkageName))
+ OS << " \"" << Ref << '\"';
+ } else if (attr == DW_AT_APPLE_property_attribute) {
+ if (Optional<uint64_t> OptVal = formValue.getAsUnsignedConstant())
+ dumpApplePropertyAttribute(OS, *OptVal);
+ } else if (attr == DW_AT_ranges) {
+ dumpRanges(OS, getAddressRanges(u), u->getAddressByteSize(),
+ sizeof(BaseIndent)+indent+4);
+ }
+
OS << ")\n";
}
@@ -284,11 +374,19 @@ bool DWARFDebugInfoEntryMinimal::addressRangeContainsAddress(
const char *
DWARFDebugInfoEntryMinimal::getSubroutineName(const DWARFUnit *U,
- FunctionNameKind Kind) const {
- if (!isSubroutineDIE() || Kind == FunctionNameKind::None)
+ DINameKind Kind) const {
+ if (!isSubroutineDIE())
+ return nullptr;
+ return getName(U, Kind);
+}
+
+const char *
+DWARFDebugInfoEntryMinimal::getName(const DWARFUnit *U,
+ DINameKind Kind) const {
+ if (Kind == DINameKind::None)
return nullptr;
// Try to get mangled name only if it was asked for.
- if (Kind == FunctionNameKind::LinkageName) {
+ if (Kind == DINameKind::LinkageName) {
if (const char *name =
getAttributeValueAsString(U, DW_AT_MIPS_linkage_name, nullptr))
return name;
@@ -303,8 +401,8 @@ DWARFDebugInfoEntryMinimal::getSubroutineName(const DWARFUnit *U,
getAttributeValueAsReference(U, DW_AT_specification, -1U);
if (spec_ref != -1U) {
DWARFDebugInfoEntryMinimal spec_die;
- if (spec_die.extractFast(U, &spec_ref)) {
- if (const char *name = spec_die.getSubroutineName(U, Kind))
+ if (const DWARFUnit *RefU = findUnitAndExtractFast(spec_die, U, &spec_ref)) {
+ if (const char *name = spec_die.getName(RefU, Kind))
return name;
}
}
@@ -313,8 +411,9 @@ DWARFDebugInfoEntryMinimal::getSubroutineName(const DWARFUnit *U,
getAttributeValueAsReference(U, DW_AT_abstract_origin, -1U);
if (abs_origin_ref != -1U) {
DWARFDebugInfoEntryMinimal abs_origin_die;
- if (abs_origin_die.extractFast(U, &abs_origin_ref)) {
- if (const char *name = abs_origin_die.getSubroutineName(U, Kind))
+ if (const DWARFUnit *RefU = findUnitAndExtractFast(abs_origin_die, U,
+ &abs_origin_ref)) {
+ if (const char *name = abs_origin_die.getName(RefU, Kind))
return name;
}
}
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