[llvm-objdump/mac] Add new function starts print mode

This updates the `--function-starts` argument to now accept 3 different
modes, `addrs` for just printing the addresses of the function starts
(previous behavior), `names` for just printing the names of the function
starts, and `both` to print them both side by side.

In general if you're debugging function starts issues it's useful to see
the symbol name alongside the address. This also mirrors Apple's
`dyldinfo -function_starts` command which prints both.

Differential Revision: https://reviews.llvm.org/D119050

1 files changed, 6 insertions, 0 deletions

diff --git a/llvm/tools/llvm-objdump/llvm-objdump.h b/llvm/tools/llvm-objdump/llvm-objdump.h
index c64c042d..efb4451 100644
--- a/llvm/tools/llvm-objdump/llvm-objdump.h
+++ b/llvm/tools/llvm-objdump/llvm-objdump.h
@@ -20,6 +20,10 @@ namespace llvm {
 class StringRef;
 class Twine;
 
+namespace opt {
+class Arg;
+} // namespace opt
+
 namespace object {
 class RelocationRef;
 struct VersionEntry;
@@ -146,6 +150,8 @@ T unwrapOrError(Expected<T> EO, Ts &&... Args) {
   reportError(EO.takeError(), std::forward<Ts>(Args)...);
 }
 
+void invalidArgValue(const opt::Arg *A);
+
 std::string getFileNameForError(const object::Archive::Child &C,
                                 unsigned Index);
 SymbolInfoTy createSymbolInfo(const object::ObjectFile &Obj,