llvm-readobj: add support to dump (COFF) directives

PE/COFF has a special section (.drectve) which can be used to pass options to
the linker (similar to LC_LINKER_OPTION).  Add support to llvm-readobj to print
the contents of the section for tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219228 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Saleem Abdulrasool 2014-10-07 19:37:52 +00:00
parent b3a0758832
commit db02fa5a11
3 changed files with 27 additions and 0 deletions

View File

@ -56,6 +56,7 @@ public:
void printDynamicSymbols() override; void printDynamicSymbols() override;
void printUnwindInfo() override; void printUnwindInfo() override;
void printCOFFImports() override; void printCOFFImports() override;
void printCOFFDirectives() override;
private: private:
void printSymbol(const SymbolRef &Sym); void printSymbol(const SymbolRef &Sym);
@ -932,3 +933,21 @@ void COFFDumper::printCOFFImports() {
printImportedSymbols(I->imported_symbol_begin(), I->imported_symbol_end()); printImportedSymbols(I->imported_symbol_begin(), I->imported_symbol_end());
} }
} }
void COFFDumper::printCOFFDirectives() {
for (const SectionRef &Section : Obj->sections()) {
StringRef Contents;
StringRef Name;
if (error(Section.getName(Name)))
continue;
if (Name != ".drectve")
continue;
if (error(Section.getContents(Contents)))
return;
W.printString("Directive(s)", Contents);
}
}

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@ -45,6 +45,7 @@ public:
// Only implemented for PE/COFF. // Only implemented for PE/COFF.
virtual void printCOFFImports() { } virtual void printCOFFImports() { }
virtual void printCOFFDirectives() { }
protected: protected:
StreamWriter& W; StreamWriter& W;

View File

@ -145,6 +145,11 @@ namespace opts {
// -coff-imports // -coff-imports
cl::opt<bool> cl::opt<bool>
COFFImports("coff-imports", cl::desc("Display the PE/COFF import table")); COFFImports("coff-imports", cl::desc("Display the PE/COFF import table"));
// -coff-directives
cl::opt<bool>
COFFDirectives("coff-directives",
cl::desc("Display the contents PE/COFF .drectve section"));
} // namespace opts } // namespace opts
static int ReturnValue = EXIT_SUCCESS; static int ReturnValue = EXIT_SUCCESS;
@ -272,6 +277,8 @@ static void dumpObject(const ObjectFile *Obj) {
Dumper->printMipsPLTGOT(); Dumper->printMipsPLTGOT();
if (opts::COFFImports) if (opts::COFFImports)
Dumper->printCOFFImports(); Dumper->printCOFFImports();
if (opts::COFFDirectives)
Dumper->printCOFFDirectives();
} }