如何获取gdb来分解整个函数？

Question

When I write things in assembly that involve jumps, I do something along the lines of:

fucntion: 
  cmp $1, %rax
  je cond
  mov $0 %rdi
  jmp end
cond:
  mov $1, %rdi
end:
  mov $60, %rax
  syscall

The problem is that when I use gdb and type disas function I will only see function up until cond . However, if I were to write a similar c program, jump statements in the disassembled program would look like jmp ADDRESS <function+xx> and typing disas function will show me every line of the function.

How can I get gdb to behave similarly with my assembly programs? Is there a flag with the assembler or linker that would make the program's jumps look more like the c program? Or would I have to change the way I write assembly? Basically I just want to be able to type disas function and get the entire function outputted.

Answer 1

The proper way is to specify the extent of your function. Append

.size function, . - function

at the end.