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45 lines
1.4 KiB
Python
Executable File
45 lines
1.4 KiB
Python
Executable File
#!/usr/bin/python3
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##
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## license:BSD-3-Clause
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## copyright-holders:Vas Crabb
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import re
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import subprocess
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import sys
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# identify .text section
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sec_pattern = re.compile(' *(0|[1-9][0-9]*) +\\.text +[0-9a-f]+ +[0-9a-f]+ +[^ ].+')
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sections = []
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with subprocess.Popen(('objdump', '--section-headers', sys.argv[1]), stdout=subprocess.PIPE) as proc:
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for line in proc.stdout:
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text = line.decode('utf-8')
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match = sec_pattern.match(text)
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if match:
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sections.append(int(match.group(1)) + 1)
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proc.wait()
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if proc.returncode != 0:
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sys.exit(proc.returncode)
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sections = frozenset(sections)
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# filter symbols from other sections
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sym_pattern = re.compile('^\\[ *(0|[1-9][0-9]*)\\]\\(sec +(-?[1-9][0-9]*)\\).+')
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aux_pattern = re.compile('^[A-Z]+ +.+')
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with subprocess.Popen(('objdump', '--syms', '--demangle', sys.argv[1]), stdout=subprocess.PIPE) as proc:
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ignored_section = False
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for line in proc.stdout:
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text = line.decode('utf-8')
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match = sym_pattern.match(text)
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if match:
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if int(match.group(2)) in sections:
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ignored_section = False
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sys.stdout.write(text)
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else:
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ignored_section = True
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else:
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match = aux_pattern.match(text)
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if (not match) or (not ignored_section):
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sys.stdout.write(text)
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if proc.returncode != 0:
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sys.exit(proc.returncode)
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