[Bug gprofng/30834] New: improve disassembly output for call and branch instructions

[vladimir.mezentsev at oracle dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=30834

            Bug ID: 30834
           Summary: improve disassembly output for call and branch
                    instructions
           Product: binutils
           Version: 2.42 (HEAD)
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gprofng
          Assignee: vladimir.mezentsev at oracle dot com
          Reporter: vladimir.mezentsev at oracle dot com
  Target Milestone: ---

gprofng only displays the hexadecimal address in call and jump instructions:
% gprofng  display src -dis main ./a.out | egrep 'call|jmp'
        [23]   401eca:  call   0x1f68
        [24]   401ee6:  call   0xfffffffffffffafa
        [26]   401ef9:  jmp    0x13f
        [28]   401f0d:  call   0x3a2f
        [29]   401f27:  call   0xfffffffffffffab9

Need to display the function name in the calling instruction, and the absolute
and relative address in the branch instruction.

For example, the output of gdb and er_src is:
% gdb -batch -ex 'file a.out' -ex 'disassemble main' 2>&1 | egrep 'call|jmp'
   0x0000000000401eca <+8>:     call   0x403e32 <bfd_init>
   0x0000000000401ee6 <+36>:    call   0x4019e0 <printf@plt>
   0x0000000000401ef9 <+55>:    jmp    0x402038 <main+374>
   0x0000000000401f0d <+75>:    call   0x40593c <bfd_openr>
   0x0000000000401f27 <+101>:   call   0x4019e0 <printf@plt>


% er_src -dis main a.out | egrep 'call|jmp'
        [23]   401eca:  call    bfd_init [ 0x403e32, .+0x1f68 ]
        [24]   401ee6:  call    .-0x506 [ 0x4019e0 ]
        [26]   401ef9:  jmp     .+0x13f [ 0x402038 ]
        [28]   401f0d:  call    bfd_openr [ 0x40593c, .+0x3a2f ]
        [29]   401f27:  call    .-0x547 [ 0x4019e0 ]

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