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-rw-r--r--llvm/tools/llvm-objdump/ELFDump.cpp68
1 files changed, 42 insertions, 26 deletions
diff --git a/llvm/tools/llvm-objdump/ELFDump.cpp b/llvm/tools/llvm-objdump/ELFDump.cpp
index abfe08346bbd7..602bc63882527 100644
--- a/llvm/tools/llvm-objdump/ELFDump.cpp
+++ b/llvm/tools/llvm-objdump/ELFDump.cpp
@@ -11,6 +11,8 @@
///
//===----------------------------------------------------------------------===//
+#include "ELFDump.h"
+
#include "llvm-objdump.h"
#include "llvm/Demangle/Demangle.h"
#include "llvm/Object/ELFObjectFile.h"
@@ -18,9 +20,10 @@
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/raw_ostream.h"
+using namespace llvm;
using namespace llvm::object;
+using namespace llvm::objdump;
-namespace llvm {
template <class ELFT>
static Expected<StringRef> getDynamicStrTab(const ELFFile<ELFT> *Elf) {
auto DynamicEntriesOrError = Elf->dynamicEntries();
@@ -98,7 +101,7 @@ static Error getRelocationValueString(const ELFObjectFile<ELFT> *Obj,
if (!SymName)
return SymName.takeError();
if (Demangle)
- Fmt << demangle(*SymName);
+ Fmt << demangle(std::string(*SymName));
else
Fmt << *SymName;
}
@@ -116,9 +119,9 @@ static Error getRelocationValueString(const ELFObjectFile<ELFT> *Obj,
return Error::success();
}
-Error getELFRelocationValueString(const ELFObjectFileBase *Obj,
- const RelocationRef &Rel,
- SmallVectorImpl<char> &Result) {
+Error objdump::getELFRelocationValueString(const ELFObjectFileBase *Obj,
+ const RelocationRef &Rel,
+ SmallVectorImpl<char> &Result) {
if (auto *ELF32LE = dyn_cast<ELF32LEObjectFile>(Obj))
return getRelocationValueString(ELF32LE, Rel, Result);
if (auto *ELF64LE = dyn_cast<ELF64LEObjectFile>(Obj))
@@ -147,7 +150,7 @@ static uint64_t getSectionLMA(const ELFFile<ELFT> *Obj,
return Sec.getAddress();
}
-uint64_t getELFSectionLMA(const object::ELFSectionRef &Sec) {
+uint64_t objdump::getELFSectionLMA(const object::ELFSectionRef &Sec) {
if (const auto *ELFObj = dyn_cast<ELF32LEObjectFile>(Sec.getObject()))
return getSectionLMA(ELFObj->getELFFile(), Sec);
else if (const auto *ELFObj = dyn_cast<ELF32BEObjectFile>(Sec.getObject()))
@@ -159,16 +162,23 @@ uint64_t getELFSectionLMA(const object::ELFSectionRef &Sec) {
}
template <class ELFT>
-void printDynamicSection(const ELFFile<ELFT> *Elf, StringRef Filename) {
+static void printDynamicSection(const ELFFile<ELFT> *Elf, StringRef Filename) {
ArrayRef<typename ELFT::Dyn> DynamicEntries =
unwrapOrError(Elf->dynamicEntries(), Filename);
+
+ // Find the maximum tag name length to format the value column properly.
+ size_t MaxLen = 0;
+ for (const typename ELFT::Dyn &Dyn : DynamicEntries)
+ MaxLen = std::max(MaxLen, Elf->getDynamicTagAsString(Dyn.d_tag).size());
+ std::string TagFmt = " %-" + std::to_string(MaxLen) + "s ";
+
outs() << "Dynamic Section:\n";
for (const typename ELFT::Dyn &Dyn : DynamicEntries) {
if (Dyn.d_tag == ELF::DT_NULL)
continue;
std::string Str = Elf->getDynamicTagAsString(Dyn.d_tag);
- outs() << format(" %-21s", Str.c_str());
+ outs() << format(TagFmt.c_str(), Str.c_str());
const char *Fmt =
ELFT::Is64Bits ? "0x%016" PRIx64 "\n" : "0x%08" PRIx64 "\n";
@@ -188,11 +198,17 @@ void printDynamicSection(const ELFFile<ELFT> *Elf, StringRef Filename) {
}
}
-template <class ELFT> void printProgramHeaders(const ELFFile<ELFT> *o) {
+template <class ELFT>
+static void printProgramHeaders(const ELFFile<ELFT> *Obj, StringRef FileName) {
outs() << "Program Header:\n";
- auto ProgramHeaderOrError = o->program_headers();
- if (!ProgramHeaderOrError)
- report_fatal_error(toString(ProgramHeaderOrError.takeError()));
+ auto ProgramHeaderOrError = Obj->program_headers();
+ if (!ProgramHeaderOrError) {
+ reportWarning("unable to read program headers: " +
+ toString(ProgramHeaderOrError.takeError()),
+ FileName);
+ return;
+ }
+
for (const typename ELFT::Phdr &Phdr : *ProgramHeaderOrError) {
switch (Phdr.p_type) {
case ELF::PT_DYNAMIC:
@@ -255,8 +271,8 @@ template <class ELFT> void printProgramHeaders(const ELFFile<ELFT> *o) {
}
template <class ELFT>
-void printSymbolVersionDependency(ArrayRef<uint8_t> Contents,
- StringRef StrTab) {
+static void printSymbolVersionDependency(ArrayRef<uint8_t> Contents,
+ StringRef StrTab) {
outs() << "Version References:\n";
const uint8_t *Buf = Contents.data();
@@ -280,9 +296,9 @@ void printSymbolVersionDependency(ArrayRef<uint8_t> Contents,
}
template <class ELFT>
-void printSymbolVersionDefinition(const typename ELFT::Shdr &Shdr,
- ArrayRef<uint8_t> Contents,
- StringRef StrTab) {
+static void printSymbolVersionDefinition(const typename ELFT::Shdr &Shdr,
+ ArrayRef<uint8_t> Contents,
+ StringRef StrTab) {
outs() << "Version definitions:\n";
const uint8_t *Buf = Contents.data();
@@ -312,7 +328,8 @@ void printSymbolVersionDefinition(const typename ELFT::Shdr &Shdr,
}
template <class ELFT>
-void printSymbolVersionInfo(const ELFFile<ELFT> *Elf, StringRef FileName) {
+static void printSymbolVersionInfo(const ELFFile<ELFT> *Elf,
+ StringRef FileName) {
ArrayRef<typename ELFT::Shdr> Sections =
unwrapOrError(Elf->sections(), FileName);
for (const typename ELFT::Shdr &Shdr : Sections) {
@@ -333,18 +350,18 @@ void printSymbolVersionInfo(const ELFFile<ELFT> *Elf, StringRef FileName) {
}
}
-void printELFFileHeader(const object::ObjectFile *Obj) {
+void objdump::printELFFileHeader(const object::ObjectFile *Obj) {
if (const auto *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
- printProgramHeaders(ELFObj->getELFFile());
+ printProgramHeaders(ELFObj->getELFFile(), Obj->getFileName());
else if (const auto *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
- printProgramHeaders(ELFObj->getELFFile());
+ printProgramHeaders(ELFObj->getELFFile(), Obj->getFileName());
else if (const auto *ELFObj = dyn_cast<ELF64LEObjectFile>(Obj))
- printProgramHeaders(ELFObj->getELFFile());
+ printProgramHeaders(ELFObj->getELFFile(), Obj->getFileName());
else if (const auto *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
- printProgramHeaders(ELFObj->getELFFile());
+ printProgramHeaders(ELFObj->getELFFile(), Obj->getFileName());
}
-void printELFDynamicSection(const object::ObjectFile *Obj) {
+void objdump::printELFDynamicSection(const object::ObjectFile *Obj) {
if (const auto *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
printDynamicSection(ELFObj->getELFFile(), Obj->getFileName());
else if (const auto *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
@@ -355,7 +372,7 @@ void printELFDynamicSection(const object::ObjectFile *Obj) {
printDynamicSection(ELFObj->getELFFile(), Obj->getFileName());
}
-void printELFSymbolVersionInfo(const object::ObjectFile *Obj) {
+void objdump::printELFSymbolVersionInfo(const object::ObjectFile *Obj) {
if (const auto *ELFObj = dyn_cast<ELF32LEObjectFile>(Obj))
printSymbolVersionInfo(ELFObj->getELFFile(), Obj->getFileName());
else if (const auto *ELFObj = dyn_cast<ELF32BEObjectFile>(Obj))
@@ -365,4 +382,3 @@ void printELFSymbolVersionInfo(const object::ObjectFile *Obj) {
else if (const auto *ELFObj = dyn_cast<ELF64BEObjectFile>(Obj))
printSymbolVersionInfo(ELFObj->getELFFile(), Obj->getFileName());
}
-} // namespace llvm
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-03 22:17:51 +0000