On 13/11/15 19:31, Greg Clayton wrote:
Currently you can't disassemble a section, nor would you probably want to since
there are padding bytes in between functions.
The easiest way is to get all SBSymbol objects and ask each one for the
instructions if they are code:
(lldb) script
Python Interactive Interpreter. To exit, type 'quit()', 'exit()' or Ctrl-D.
module = lldb.target.module['a.out']
num_symbols = module.GetNumSymbols()
for i in range(num_symbols):
... symbol = module.GetSymbolAtIndex(i)
... if symbol.GetType() == lldb.eSymbolTypeCode:
... print symbol
... instructions = symbol.GetInstructions(lldb.target)
... for inst in instructions:
... print inst
...
id = {0x00000004}, range = [0x0000000100000f00-0x0000000100000f20), name="foo(float)",
mangled="_Z3foof"
a.out[0x100000f00]: pushq %rbp
a.out[0x100000f01]: movq %rsp, %rbp
a.out[0x100000f04]: movss %xmm0, -0x4(%rbp)
a.out[0x100000f09]: cvttss2si -0x4(%rbp), %eax
a.out[0x100000f0e]: shll $0x1, %eax
a.out[0x100000f11]: popq %rbp
a.out[0x100000f12]: retq
a.out[0x100000f13]: nopw %cs:(%rax,%rax)
id = {0x00000008}, range = [0x0000000100000f20-0x0000000100000f40), name="foo(int)",
mangled="_Z3fooi"
a.out[0x100000f20]: pushq %rbp
a.out[0x100000f21]: movq %rsp, %rbp
a.out[0x100000f24]: movl %edi, -0x4(%rbp)
a.out[0x100000f27]: movl -0x4(%rbp), %edi
a.out[0x100000f2a]: shll $0x2, %edi
a.out[0x100000f2d]: movl %edi, %eax
a.out[0x100000f2f]: popq %rbp
a.out[0x100000f30]: retq
a.out[0x100000f31]: nopw %cs:(%rax,%rax)
id = {0x0000000c}, range = [0x0000000100000f40-0x0000000100000f90), name="main"
a.out[0x100000f40]: pushq %rbp
a.out[0x100000f41]: movq %rsp, %rbp
a.out[0x100000f44]: subq $0x30, %rsp
a.out[0x100000f48]: movss 0x40(%rip), %xmm0
a.out[0x100000f50]: movl $0x0, -0x4(%rbp)
a.out[0x100000f57]: movl %edi, -0x8(%rbp)
a.out[0x100000f5a]: movq %rsi, -0x10(%rbp)
a.out[0x100000f5e]: movq %rdx, -0x18(%rbp)
a.out[0x100000f62]: movss %xmm0, -0x1c(%rbp)
a.out[0x100000f67]: movl $0x4d2, -0x20(%rbp)
a.out[0x100000f6e]: movss -0x1c(%rbp), %xmm0
a.out[0x100000f73]: callq 0x100000f00
a.out[0x100000f78]: movl -0x20(%rbp), %edi
a.out[0x100000f7b]: movl %eax, -0x24(%rbp)
a.out[0x100000f7e]: callq 0x100000f20
a.out[0x100000f83]: movl -0x24(%rbp), %edi
a.out[0x100000f86]: addl %eax, %edi
a.out[0x100000f88]: movl %edi, %eax
a.out[0x100000f8a]: addq $0x30, %rsp
a.out[0x100000f8e]: popq %rbp
a.out[0x100000f8f]: retq
If you want the symbols only from a specific section you can get the section
from the symbol's start address and compare that to a given name:
section_name = ".text"
for i in range(num_symbols):
symbol = module.GetSymbolAtIndex(i)
if symbol.GetType() == lldb.eSymbolTypeCode:
symbol_section = symbol.GetStartAddress().GetSection()
if symbol_section.GetName() == section_name:
print symbol
instructions = symbol.GetInstructions(lldb.target)
for inst in instructions:
print inst
On Nov 12, 2015, at 2:13 PM, kwadwo amankwa via lldb-dev
<lldb-dev@lists.llvm.org> wrote:
Hi
I'm writing a small script and need to disassemble a whole section , what would
be the correct way to go about it ?
Cheers Que,
_______________________________________________
lldb-dev mailing list
lldb-dev@lists.llvm.org
http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev
_______________________________________________
lldb-dev mailing list
lldb-dev@lists.llvm.org
http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev
