openlang
Tools and maintenance

Can gdb set a breakpoint for an assembly instruction using its address?

The conversation continues 2 ↓
0x0000000000400558 <main+0>:    push   %rbp
0x0000000000400559 <main+1>:    mov    %rsp,%rbp
0x000000000040055c <main+4>:    mov    $0x7,%eax
0x0000000000400561 <main+9>:    leaveq
0x0000000000400562 <main+10>:   retq

My attempt:

breaki 0x0000000000400558

apparently this command does not exist, though.

Can gdb do something like this?

The conversation continues 2

Follow the reasoning

  2. An alternative:

    break *main+4

    A breakpoint gets placed at 0x000000000040055c

    To me, that beats typing out the entire address!

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