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-rw-r--r--tools/llvm-cxxdump/llvm-cxxdump.cpp104
1 files changed, 36 insertions, 68 deletions
diff --git a/tools/llvm-cxxdump/llvm-cxxdump.cpp b/tools/llvm-cxxdump/llvm-cxxdump.cpp
index 4e06be9e78b9..3dda69266a2d 100644
--- a/tools/llvm-cxxdump/llvm-cxxdump.cpp
+++ b/tools/llvm-cxxdump/llvm-cxxdump.cpp
@@ -40,18 +40,14 @@ cl::list<std::string> InputFilenames(cl::Positional,
cl::ZeroOrMore);
} // namespace opts
-static int ReturnValue = EXIT_SUCCESS;
-
namespace llvm {
-static bool error(std::error_code EC) {
+static void error(std::error_code EC) {
if (!EC)
- return false;
-
- ReturnValue = EXIT_FAILURE;
+ return;
outs() << "\nError reading file: " << EC.message() << ".\n";
outs().flush();
- return true;
+ exit(1);
}
} // namespace llvm
@@ -59,38 +55,24 @@ static bool error(std::error_code EC) {
static void reportError(StringRef Input, StringRef Message) {
if (Input == "-")
Input = "<stdin>";
-
errs() << Input << ": " << Message << "\n";
errs().flush();
- ReturnValue = EXIT_FAILURE;
+ exit(1);
}
static void reportError(StringRef Input, std::error_code EC) {
reportError(Input, EC.message());
}
-static SmallVectorImpl<SectionRef> &getRelocSections(const ObjectFile *Obj,
- const SectionRef &Sec) {
- static bool MappingDone = false;
- static std::map<SectionRef, SmallVector<SectionRef, 1>> SectionRelocMap;
- if (!MappingDone) {
- for (const SectionRef &Section : Obj->sections()) {
- section_iterator Sec2 = Section.getRelocatedSection();
- if (Sec2 != Obj->section_end())
- SectionRelocMap[*Sec2].push_back(Section);
- }
- MappingDone = true;
- }
- return SectionRelocMap[Sec];
-}
+static std::map<SectionRef, SmallVector<SectionRef, 1>> SectionRelocMap;
-static bool collectRelocatedSymbols(const ObjectFile *Obj,
+static void collectRelocatedSymbols(const ObjectFile *Obj,
const SectionRef &Sec, uint64_t SecAddress,
uint64_t SymAddress, uint64_t SymSize,
StringRef *I, StringRef *E) {
uint64_t SymOffset = SymAddress - SecAddress;
uint64_t SymEnd = SymOffset + SymSize;
- for (const SectionRef &SR : getRelocSections(Obj, Sec)) {
+ for (const SectionRef &SR : SectionRelocMap[Sec]) {
for (const object::RelocationRef &Reloc : SR.relocations()) {
if (I == E)
break;
@@ -98,8 +80,7 @@ static bool collectRelocatedSymbols(const ObjectFile *Obj,
if (RelocSymI == Obj->symbol_end())
continue;
ErrorOr<StringRef> RelocSymName = RelocSymI->getName();
- if (error(RelocSymName.getError()))
- return true;
+ error(RelocSymName.getError());
uint64_t Offset = Reloc.getOffset();
if (Offset >= SymOffset && Offset < SymEnd) {
*I = *RelocSymName;
@@ -107,29 +88,26 @@ static bool collectRelocatedSymbols(const ObjectFile *Obj,
}
}
}
- return false;
}
-static bool collectRelocationOffsets(
+static void collectRelocationOffsets(
const ObjectFile *Obj, const SectionRef &Sec, uint64_t SecAddress,
uint64_t SymAddress, uint64_t SymSize, StringRef SymName,
std::map<std::pair<StringRef, uint64_t>, StringRef> &Collection) {
uint64_t SymOffset = SymAddress - SecAddress;
uint64_t SymEnd = SymOffset + SymSize;
- for (const SectionRef &SR : getRelocSections(Obj, Sec)) {
+ for (const SectionRef &SR : SectionRelocMap[Sec]) {
for (const object::RelocationRef &Reloc : SR.relocations()) {
const object::symbol_iterator RelocSymI = Reloc.getSymbol();
if (RelocSymI == Obj->symbol_end())
continue;
ErrorOr<StringRef> RelocSymName = RelocSymI->getName();
- if (error(RelocSymName.getError()))
- return true;
+ error(RelocSymName.getError());
uint64_t Offset = Reloc.getOffset();
if (Offset >= SymOffset && Offset < SymEnd)
Collection[std::make_pair(SymName, Offset - SymOffset)] = *RelocSymName;
}
}
- return false;
}
static void dumpCXXData(const ObjectFile *Obj) {
@@ -182,6 +160,13 @@ static void dumpCXXData(const ObjectFile *Obj) {
std::map<std::pair<StringRef, uint64_t>, StringRef> VTTEntries;
std::map<StringRef, StringRef> TINames;
+ SectionRelocMap.clear();
+ for (const SectionRef &Section : Obj->sections()) {
+ section_iterator Sec2 = Section.getRelocatedSection();
+ if (Sec2 != Obj->section_end())
+ SectionRelocMap[*Sec2].push_back(Section);
+ }
+
uint8_t BytesInAddress = Obj->getBytesInAddress();
std::vector<std::pair<SymbolRef, uint64_t>> SymAddr =
@@ -191,12 +176,11 @@ static void dumpCXXData(const ObjectFile *Obj) {
object::SymbolRef Sym = P.first;
uint64_t SymSize = P.second;
ErrorOr<StringRef> SymNameOrErr = Sym.getName();
- if (error(SymNameOrErr.getError()))
- return;
+ error(SymNameOrErr.getError());
StringRef SymName = *SymNameOrErr;
- object::section_iterator SecI(Obj->section_begin());
- if (error(Sym.getSection(SecI)))
- return;
+ ErrorOr<object::section_iterator> SecIOrErr = Sym.getSection();
+ error(SecIOrErr.getError());
+ object::section_iterator SecI = *SecIOrErr;
// Skip external symbols.
if (SecI == Obj->section_end())
continue;
@@ -205,11 +189,9 @@ static void dumpCXXData(const ObjectFile *Obj) {
if (Sec.isBSS() || Sec.isVirtual())
continue;
StringRef SecContents;
- if (error(Sec.getContents(SecContents)))
- return;
+ error(Sec.getContents(SecContents));
ErrorOr<uint64_t> SymAddressOrErr = Sym.getAddress();
- if (error(SymAddressOrErr.getError()))
- return;
+ error(SymAddressOrErr.getError());
uint64_t SymAddress = *SymAddressOrErr;
uint64_t SecAddress = Sec.getAddress();
uint64_t SecSize = Sec.getSize();
@@ -236,23 +218,19 @@ static void dumpCXXData(const ObjectFile *Obj) {
// Complete object locators in the MS-ABI start with '??_R4'
else if (SymName.startswith("??_R4")) {
CompleteObjectLocator COL;
- COL.Data = ArrayRef<little32_t>(
+ COL.Data = makeArrayRef(
reinterpret_cast<const little32_t *>(SymContents.data()), 3);
StringRef *I = std::begin(COL.Symbols), *E = std::end(COL.Symbols);
- if (collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I,
- E))
- return;
+ collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I, E);
COLs[SymName] = COL;
}
// Class hierarchy descriptors in the MS-ABI start with '??_R3'
else if (SymName.startswith("??_R3")) {
ClassHierarchyDescriptor CHD;
- CHD.Data = ArrayRef<little32_t>(
+ CHD.Data = makeArrayRef(
reinterpret_cast<const little32_t *>(SymContents.data()), 3);
StringRef *I = std::begin(CHD.Symbols), *E = std::end(CHD.Symbols);
- if (collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I,
- E))
- return;
+ collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I, E);
CHDs[SymName] = CHD;
}
// Class hierarchy descriptors in the MS-ABI start with '??_R2'
@@ -265,12 +243,10 @@ static void dumpCXXData(const ObjectFile *Obj) {
// Base class descriptors in the MS-ABI start with '??_R1'
else if (SymName.startswith("??_R1")) {
BaseClassDescriptor BCD;
- BCD.Data = ArrayRef<little32_t>(
+ BCD.Data = makeArrayRef(
reinterpret_cast<const little32_t *>(SymContents.data()) + 1, 5);
StringRef *I = std::begin(BCD.Symbols), *E = std::end(BCD.Symbols);
- if (collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I,
- E))
- return;
+ collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I, E);
BCDs[SymName] = BCD;
}
// Type descriptors in the MS-ABI start with '??_R0'
@@ -283,9 +259,7 @@ static void dumpCXXData(const ObjectFile *Obj) {
TD.AlwaysZero = *reinterpret_cast<const little32_t *>(DataPtr);
TD.MangledName = SymContents.drop_front(BytesInAddress * 2);
StringRef *I = std::begin(TD.Symbols), *E = std::end(TD.Symbols);
- if (collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I,
- E))
- return;
+ collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I, E);
TDs[SymName] = TD;
}
// Throw descriptors in the MS-ABI start with '_TI'
@@ -316,9 +290,7 @@ static void dumpCXXData(const ObjectFile *Obj) {
CT.VirtualBaseAdjustmentOffset = DataPtr[4];
CT.Size = DataPtr[5];
StringRef *I = std::begin(CT.Symbols), *E = std::end(CT.Symbols);
- if (collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I,
- E))
- return;
+ collectRelocatedSymbols(Obj, Sec, SecAddress, SymAddress, SymSize, I, E);
CTs[SymName] = CT;
}
// Construction vtables in the Itanium ABI start with '_ZTT' or '__ZTT'.
@@ -510,7 +482,9 @@ static void dumpCXXData(const ObjectFile *Obj) {
}
static void dumpArchive(const Archive *Arc) {
- for (const Archive::Child &ArcC : Arc->children()) {
+ for (auto &ErrorOrChild : Arc->children()) {
+ error(ErrorOrChild.getError());
+ const Archive::Child &ArcC = *ErrorOrChild;
ErrorOr<std::unique_ptr<Binary>> ChildOrErr = ArcC.getAsBinary();
if (std::error_code EC = ChildOrErr.getError()) {
// Ignore non-object files.
@@ -527,12 +501,6 @@ static void dumpArchive(const Archive *Arc) {
}
static void dumpInput(StringRef File) {
- // If file isn't stdin, check that it exists.
- if (File != "-" && !sys::fs::exists(File)) {
- reportError(File, cxxdump_error::file_not_found);
- return;
- }
-
// Attempt to open the binary.
ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(File);
if (std::error_code EC = BinaryOrErr.getError()) {
@@ -569,5 +537,5 @@ int main(int argc, const char *argv[]) {
std::for_each(opts::InputFilenames.begin(), opts::InputFilenames.end(),
dumpInput);
- return ReturnValue;
+ return EXIT_SUCCESS;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 07:40:08 +0000