[LLVMbugs] [Bug 12729] New: llvm-objdump -version does not print available targets

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=12729

             Bug #: 12729
           Summary: llvm-objdump -version does not print available targets
           Product: tools
           Version: trunk
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: llvm-dis
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: jcarter at mips.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


I couldn't find a bugzilla component for llvm-objdump so I hooked this to the
closest thing.

If I type llvm-objdump -help it states among other things:

OPTIONS:
  -arch=<string>                   - Target arch to disassemble for, see
-version for available targets
   -triple=<string>                 - Target triple to disassemble for, see
-version for available targets

but when I try it I get:

% llvm-objdump -version
LLVM (http://llvm.org/):
  LLVM version 3.2svn
  DEBUG build with assertions.
  Built Apr 30 2012 (13:51:53).
  Default target: x86_64-unknown-linux-gnu
  Host CPU: corei7

The default is stated, not all the available targets.

llvm/lib/Support/CommandLine.cpp:class VersionPrinter seems to be printing out
the default version. I am assuming that the routine for llvm-objdump will have
to be local instance of VersionPrinter or a pure virtual class for supported
triples for the specific tool.

-triple=mipsel-unknown-linux is supported, but I had to dig for it and from the
help message it wasn't supported.

Cheers

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