[llvm] r179363 - Teach llvm-readobj to print ELF program headers
Nico Rieck
nico.rieck at gmail.com
Thu Apr 11 21:07:40 PDT 2013
Author: nrieck
Date: Thu Apr 11 23:07:39 2013
New Revision: 179363
URL: http://llvm.org/viewvc/llvm-project?rev=179363&view=rev
Log:
Teach llvm-readobj to print ELF program headers
Added:
llvm/trunk/test/tools/llvm-readobj/program-headers.test
Modified:
llvm/trunk/docs/CommandGuide/llvm-readobj.rst
llvm/trunk/tools/llvm-readobj/ELFDumper.cpp
llvm/trunk/tools/llvm-readobj/ObjDumper.h
llvm/trunk/tools/llvm-readobj/llvm-readobj.cpp
Modified: llvm/trunk/docs/CommandGuide/llvm-readobj.rst
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/CommandGuide/llvm-readobj.rst?rev=179363&r1=179362&r2=179363&view=diff
==============================================================================
--- llvm/trunk/docs/CommandGuide/llvm-readobj.rst (original)
+++ llvm/trunk/docs/CommandGuide/llvm-readobj.rst Thu Apr 11 23:07:39 2013
@@ -76,6 +76,10 @@ input. Otherwise, it will read from the
Display the needed libraries (only for ELF object files).
+.. option:: -program-headers
+
+ Display the ELF program headers (only for ELF object files).
+
EXIT STATUS
-----------
Added: llvm/trunk/test/tools/llvm-readobj/program-headers.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-readobj/program-headers.test?rev=179363&view=auto
==============================================================================
--- llvm/trunk/test/tools/llvm-readobj/program-headers.test (added)
+++ llvm/trunk/test/tools/llvm-readobj/program-headers.test Thu Apr 11 23:07:39 2013
@@ -0,0 +1,74 @@
+RUN: llvm-readobj -program-headers %p/../../Object/Inputs/program-headers.elf-i386 \
+RUN: | FileCheck %s -check-prefix ELF-I386
+RUN: llvm-readobj -program-headers %p/../../Object/Inputs/program-headers.elf-x86-64 \
+RUN: | FileCheck %s -check-prefix ELF-X86-64
+
+ELF-I386: ProgramHeaders [
+ELF-I386-NEXT: ProgramHeader {
+ELF-I386-NEXT: Type: PT_LOAD (0x1)
+ELF-I386-NEXT: Offset: 0x0
+ELF-I386-NEXT: VirtualAddress: 0x8048000
+ELF-I386-NEXT: PhysicalAddress: 0x8048000
+ELF-I386-NEXT: FileSize: 308
+ELF-I386-NEXT: MemSize: 308
+ELF-I386-NEXT: Flags [ (0x5)
+ELF-I386-NEXT: PF_R (0x4)
+ELF-I386-NEXT: PF_X (0x1)
+ELF-I386-NEXT: ]
+ELF-I386-NEXT: Alignment: 4096
+ELF-I386-NEXT: }
+ELF-I386-NEXT: ProgramHeader {
+ELF-I386-NEXT: Type: PT_GNU_STACK (0x6474E551)
+ELF-I386-NEXT: Offset: 0x0
+ELF-I386-NEXT: VirtualAddress: 0x0
+ELF-I386-NEXT: PhysicalAddress: 0x0
+ELF-I386-NEXT: FileSize: 0
+ELF-I386-NEXT: MemSize: 0
+ELF-I386-NEXT: Flags [ (0x6)
+ELF-I386-NEXT: PF_R (0x4)
+ELF-I386-NEXT: PF_W (0x2)
+ELF-I386-NEXT: ]
+ELF-I386-NEXT: Alignment: 4
+ELF-I386-NEXT: }
+ELF-I386-NEXT: ]
+
+ELF-X86-64: ProgramHeaders [
+ELF-X86-64-NEXT: ProgramHeader {
+ELF-X86-64-NEXT: Type: PT_LOAD (0x1)
+ELF-X86-64-NEXT: Offset: 0x0
+ELF-X86-64-NEXT: VirtualAddress: 0x400000
+ELF-X86-64-NEXT: PhysicalAddress: 0x400000
+ELF-X86-64-NEXT: FileSize: 312
+ELF-X86-64-NEXT: MemSize: 312
+ELF-X86-64-NEXT: Flags [ (0x5)
+ELF-X86-64-NEXT: PF_R (0x4)
+ELF-X86-64-NEXT: PF_X (0x1)
+ELF-X86-64-NEXT: ]
+ELF-X86-64-NEXT: Alignment: 2097152
+ELF-X86-64-NEXT: }
+ELF-X86-64-NEXT: ProgramHeader {
+ELF-X86-64-NEXT: Type: PT_GNU_EH_FRAME (0x6474E550)
+ELF-X86-64-NEXT: Offset: 0xF4
+ELF-X86-64-NEXT: VirtualAddress: 0x4000F4
+ELF-X86-64-NEXT: PhysicalAddress: 0x4000F4
+ELF-X86-64-NEXT: FileSize: 20
+ELF-X86-64-NEXT: MemSize: 20
+ELF-X86-64-NEXT: Flags [ (0x4)
+ELF-X86-64-NEXT: PF_R (0x4)
+ELF-X86-64-NEXT: ]
+ELF-X86-64-NEXT: Alignment: 4
+ELF-X86-64-NEXT: }
+ELF-X86-64-NEXT: ProgramHeader {
+ELF-X86-64-NEXT: Type: PT_GNU_STACK (0x6474E551)
+ELF-X86-64-NEXT: Offset: 0x0
+ELF-X86-64-NEXT: VirtualAddress: 0x0
+ELF-X86-64-NEXT: PhysicalAddress: 0x0
+ELF-X86-64-NEXT: FileSize: 0
+ELF-X86-64-NEXT: MemSize: 0
+ELF-X86-64-NEXT: Flags [ (0x6)
+ELF-X86-64-NEXT: PF_R (0x4)
+ELF-X86-64-NEXT: PF_W (0x2)
+ELF-X86-64-NEXT: ]
+ELF-X86-64-NEXT: Alignment: 8
+ELF-X86-64-NEXT: }
+ELF-X86-64-NEXT: ]
Modified: llvm/trunk/tools/llvm-readobj/ELFDumper.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-readobj/ELFDumper.cpp?rev=179363&r1=179362&r2=179363&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-readobj/ELFDumper.cpp (original)
+++ llvm/trunk/tools/llvm-readobj/ELFDumper.cpp Thu Apr 11 23:07:39 2013
@@ -50,16 +50,18 @@ public:
virtual void printDynamicTable() LLVM_OVERRIDE;
virtual void printNeededLibraries() LLVM_OVERRIDE;
+ virtual void printProgramHeaders() LLVM_OVERRIDE;
private:
- typedef typename ELFObjectFile<ELFT>::Elf_Shdr Elf_Shdr;
- typedef typename ELFObjectFile<ELFT>::Elf_Sym Elf_Sym;
+ typedef ELFObjectFile<ELFT> ELFO;
+ typedef typename ELFO::Elf_Shdr Elf_Shdr;
+ typedef typename ELFO::Elf_Sym Elf_Sym;
void printSymbol(symbol_iterator SymI, bool IsDynamic = false);
void printRelocation(section_iterator SecI, relocation_iterator RelI);
- const ELFObjectFile<ELFT> *Obj;
+ const ELFO *Obj;
};
} // namespace
@@ -399,11 +401,37 @@ static const EnumEntry<unsigned> ElfSect
LLVM_READOBJ_ENUM_ENT(ELF, SHF_MIPS_NOSTRIP )
};
+static const EnumEntry<unsigned> ElfSegmentTypes[] = {
+ LLVM_READOBJ_ENUM_ENT(ELF, PT_NULL ),
+ LLVM_READOBJ_ENUM_ENT(ELF, PT_LOAD ),
+ LLVM_READOBJ_ENUM_ENT(ELF, PT_DYNAMIC),
+ LLVM_READOBJ_ENUM_ENT(ELF, PT_INTERP ),
+ LLVM_READOBJ_ENUM_ENT(ELF, PT_NOTE ),
+ LLVM_READOBJ_ENUM_ENT(ELF, PT_SHLIB ),
+ LLVM_READOBJ_ENUM_ENT(ELF, PT_PHDR ),
+ LLVM_READOBJ_ENUM_ENT(ELF, PT_TLS ),
+
+ LLVM_READOBJ_ENUM_ENT(ELF, PT_GNU_EH_FRAME),
+ LLVM_READOBJ_ENUM_ENT(ELF, PT_SUNW_EH_FRAME),
+ LLVM_READOBJ_ENUM_ENT(ELF, PT_SUNW_UNWIND),
+
+ LLVM_READOBJ_ENUM_ENT(ELF, PT_GNU_STACK),
+ LLVM_READOBJ_ENUM_ENT(ELF, PT_GNU_RELRO),
+
+ LLVM_READOBJ_ENUM_ENT(ELF, PT_ARM_EXIDX),
+ LLVM_READOBJ_ENUM_ENT(ELF, PT_ARM_UNWIND)
+};
+
+static const EnumEntry<unsigned> ElfSegmentFlags[] = {
+ LLVM_READOBJ_ENUM_ENT(ELF, PF_X),
+ LLVM_READOBJ_ENUM_ENT(ELF, PF_W),
+ LLVM_READOBJ_ENUM_ENT(ELF, PF_R)
+};
+
template<class ELFT>
void ELFDumper<ELFT>::printFileHeaders() {
error_code EC;
- typedef ELFObjectFile<ELFT> ELFO;
const typename ELFO::Elf_Ehdr *Header = Obj->getElfHeader();
@@ -745,7 +773,6 @@ void ELFDumper<ELFT>::printUnwindInfo()
template<class ELFT>
void ELFDumper<ELFT>::printDynamicTable() {
- typedef ELFObjectFile<ELFT> ELFO;
typedef typename ELFO::Elf_Dyn_iterator EDI;
EDI Start = Obj->begin_dynamic_table(),
End = Obj->end_dynamic_table(true);
@@ -808,3 +835,22 @@ void ELFDumper<ELFT>::printNeededLibrari
outs() << " " << Path << "\n";
}
}
+
+template<class ELFT>
+void ELFDumper<ELFT>::printProgramHeaders() {
+ ListScope L(W, "ProgramHeaders");
+
+ for (typename ELFO::Elf_Phdr_Iter PI = Obj->begin_program_headers(),
+ PE = Obj->end_program_headers();
+ PI != PE; ++PI) {
+ DictScope P(W, "ProgramHeader");
+ W.printEnum ("Type", PI->p_type, makeArrayRef(ElfSegmentTypes));
+ W.printHex ("Offset", PI->p_offset);
+ W.printHex ("VirtualAddress", PI->p_vaddr);
+ W.printHex ("PhysicalAddress", PI->p_paddr);
+ W.printNumber("FileSize", PI->p_filesz);
+ W.printNumber("MemSize", PI->p_memsz);
+ W.printFlags ("Flags", PI->p_flags, makeArrayRef(ElfSegmentFlags));
+ W.printNumber("Alignment", PI->p_align);
+ }
+}
Modified: llvm/trunk/tools/llvm-readobj/ObjDumper.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-readobj/ObjDumper.h?rev=179363&r1=179362&r2=179363&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-readobj/ObjDumper.h (original)
+++ llvm/trunk/tools/llvm-readobj/ObjDumper.h Thu Apr 11 23:07:39 2013
@@ -38,6 +38,7 @@ public:
// Only implemented for ELF at this time.
virtual void printDynamicTable() { }
virtual void printNeededLibraries() { }
+ virtual void printProgramHeaders() { }
protected:
StreamWriter& W;
Modified: llvm/trunk/tools/llvm-readobj/llvm-readobj.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-readobj/llvm-readobj.cpp?rev=179363&r1=179362&r2=179363&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-readobj/llvm-readobj.cpp (original)
+++ llvm/trunk/tools/llvm-readobj/llvm-readobj.cpp Thu Apr 11 23:07:39 2013
@@ -121,6 +121,10 @@ namespace opts {
cl::opt<bool> NeededLibraries("needed-libs",
cl::desc("Display the needed libraries"));
+ // -program-headers
+ cl::opt<bool> ProgramHeaders("program-headers",
+ cl::desc("Display ELF program headers"));
+
// -expand-relocs
cl::opt<bool> ExpandRelocs("expand-relocs",
cl::desc("Expand each shown relocation to multiple lines"));
@@ -215,6 +219,8 @@ static void dumpObject(const ObjectFile
Dumper->printDynamicTable();
if (opts::NeededLibraries)
Dumper->printNeededLibraries();
+ if (opts::ProgramHeaders)
+ Dumper->printProgramHeaders();
}
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