1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
#!/usr/bin/python3
##
## license:BSD-3-Clause
## copyright-holders:Vas Crabb
import re
import subprocess
import sys
# identify .text section
sec_pattern = re.compile(' *(0|[1-9][0-9]*) +\\.text +[0-9a-f]+ +[0-9a-f]+ +[^ ].+')
sections = []
with subprocess.Popen(('objdump', '--section-headers', sys.argv[1]), stdout=subprocess.PIPE) as proc:
for line in proc.stdout:
text = line.decode('utf-8')
match = sec_pattern.match(text)
if match:
sections.append(int(match.group(1)) + 1)
proc.wait()
if proc.returncode != 0:
sys.exit(proc.returncode)
sections = frozenset(sections)
# filter symbols from other sections
sym_pattern = re.compile('^\\[ *(0|[1-9][0-9]*)\\]\\(sec +(-?[1-9][0-9]*)\\).+')
aux_pattern = re.compile('^[A-Z]+ +.+')
with subprocess.Popen(('objdump', '--syms', '--demangle', sys.argv[1]), stdout=subprocess.PIPE) as proc:
ignored_section = False
for line in proc.stdout:
text = line.decode('utf-8')
match = sym_pattern.match(text)
if match:
if int(match.group(2)) in sections:
ignored_section = False
sys.stdout.write(text)
else:
ignored_section = True
else:
match = aux_pattern.match(text)
if (not match) or (not ignored_section):
sys.stdout.write(text)
if proc.returncode != 0:
sys.exit(proc.returncode)
|
