Add the options, -dylibs-used and -dylib-id to llvm-objdump used with -macho
to print the Mach-O dynamic shared libraries used by a linked image or the
library id of a shared library.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232406 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-objdump/MachODump.cpp b/tools/llvm-objdump/MachODump.cpp
index 0e917e9..625820f 100644
--- a/tools/llvm-objdump/MachODump.cpp
+++ b/tools/llvm-objdump/MachODump.cpp
@@ -102,6 +102,16 @@
"Mach-O objects (requires -macho)"));
cl::opt<bool>
+ llvm::DylibsUsed("dylibs-used",
+ cl::desc("Print the shared libraries used for linked "
+ "Mach-O files (requires -macho)"));
+
+cl::opt<bool>
+ llvm::DylibId("dylib-id",
+ cl::desc("Print the shared library's id for the dylib Mach-O "
+ "file (requires -macho)"));
+
+cl::opt<bool>
llvm::NonVerbose("non-verbose",
cl::desc("Print the info for Mach-O objects in "
"non-verbose or numeric form (requires -macho)"));
@@ -516,6 +526,59 @@
}
}
+static void PrintDylibs(MachOObjectFile *O, bool JustId) {
+ uint32_t LoadCommandCount = O->getHeader().ncmds;
+ MachOObjectFile::LoadCommandInfo Load = O->getFirstLoadCommandInfo();
+ for (unsigned I = 0;; ++I) {
+ if ((JustId && Load.C.cmd == MachO::LC_ID_DYLIB) ||
+ (!JustId && (Load.C.cmd == MachO::LC_ID_DYLIB ||
+ Load.C.cmd == MachO::LC_LOAD_DYLIB ||
+ Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB ||
+ Load.C.cmd == MachO::LC_REEXPORT_DYLIB ||
+ Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB ||
+ Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB))) {
+ MachO::dylib_command dl = O->getDylibIDLoadCommand(Load);
+ if (dl.dylib.name < dl.cmdsize) {
+ const char *p = (const char *)(Load.Ptr) + dl.dylib.name;
+ if (JustId)
+ outs() << p << "\n";
+ else {
+ outs() << "\t" << p;
+ outs() << " (compatibility version "
+ << ((dl.dylib.compatibility_version >> 16) & 0xffff) << "."
+ << ((dl.dylib.compatibility_version >> 8) & 0xff) << "."
+ << (dl.dylib.compatibility_version & 0xff) << ",";
+ outs() << " current version "
+ << ((dl.dylib.current_version >> 16) & 0xffff) << "."
+ << ((dl.dylib.current_version >> 8) & 0xff) << "."
+ << (dl.dylib.current_version & 0xff) << ")\n";
+ }
+ } else {
+ outs() << "\tBad offset (" << dl.dylib.name << ") for name of ";
+ if (Load.C.cmd == MachO::LC_ID_DYLIB)
+ outs() << "LC_ID_DYLIB ";
+ else if (Load.C.cmd == MachO::LC_LOAD_DYLIB)
+ outs() << "LC_LOAD_DYLIB ";
+ else if (Load.C.cmd == MachO::LC_LOAD_WEAK_DYLIB)
+ outs() << "LC_LOAD_WEAK_DYLIB ";
+ else if (Load.C.cmd == MachO::LC_LAZY_LOAD_DYLIB)
+ outs() << "LC_LAZY_LOAD_DYLIB ";
+ else if (Load.C.cmd == MachO::LC_REEXPORT_DYLIB)
+ outs() << "LC_REEXPORT_DYLIB ";
+ else if (Load.C.cmd == MachO::LC_LOAD_UPWARD_DYLIB)
+ outs() << "LC_LOAD_UPWARD_DYLIB ";
+ else
+ outs() << "LC_??? ";
+ outs() << "command " << I << "\n";
+ }
+ }
+ if (I == LoadCommandCount - 1)
+ break;
+ else
+ Load = O->getNextLoadCommandInfo(Load);
+ }
+}
+
typedef DenseMap<uint64_t, StringRef> SymbolAddressMap;
static void CreateSymbolAddressMap(MachOObjectFile *O,
@@ -1106,7 +1169,7 @@
// UniversalHeaders or ArchiveHeaders.
if (Disassemble || PrivateHeaders || ExportsTrie || Rebase || Bind ||
LazyBind || WeakBind || IndirectSymbols || DataInCode || LinkOptHints ||
- DumpSections.size() != 0) {
+ DylibsUsed || DylibId || DumpSections.size() != 0) {
outs() << Filename;
if (!ArchiveMemberName.empty())
outs() << '(' << ArchiveMemberName << ')';
@@ -1133,6 +1196,10 @@
DumpSectionContents(Filename, MachOOF, !NonVerbose);
if (InfoPlist)
DumpInfoPlistSectionContents(Filename, MachOOF);
+ if (DylibsUsed)
+ PrintDylibs(MachOOF, false);
+ if (DylibId)
+ PrintDylibs(MachOOF, true);
if (SymbolTable)
PrintSymbolTable(MachOOF);
if (UnwindInfo)
diff --git a/tools/llvm-objdump/llvm-objdump.cpp b/tools/llvm-objdump/llvm-objdump.cpp
index 4bae053..9e51c19 100644
--- a/tools/llvm-objdump/llvm-objdump.cpp
+++ b/tools/llvm-objdump/llvm-objdump.cpp
@@ -908,6 +908,8 @@
&& !(DataInCode && MachOOpt)
&& !(LinkOptHints && MachOOpt)
&& !(InfoPlist && MachOOpt)
+ && !(DylibsUsed && MachOOpt)
+ && !(DylibId && MachOOpt)
&& !(DumpSections.size() != 0 && MachOOpt)) {
cl::PrintHelpMessage();
return 2;
diff --git a/tools/llvm-objdump/llvm-objdump.h b/tools/llvm-objdump/llvm-objdump.h
index 434a10e..68cb437 100644
--- a/tools/llvm-objdump/llvm-objdump.h
+++ b/tools/llvm-objdump/llvm-objdump.h
@@ -41,6 +41,8 @@
extern cl::opt<bool> DataInCode;
extern cl::opt<bool> LinkOptHints;
extern cl::opt<bool> InfoPlist;
+extern cl::opt<bool> DylibsUsed;
+extern cl::opt<bool> DylibId;
extern cl::opt<bool> NonVerbose;
extern cl::opt<bool> Relocations;
extern cl::opt<bool> SectionHeaders;
