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-rw-r--r--utils/sym_check/sym_check/extract.py10
-rw-r--r--utils/sym_check/sym_check/util.py169
-rwxr-xr-xutils/sym_check/sym_diff.py13
-rwxr-xr-xutils/sym_check/sym_extract.py5
4 files changed, 194 insertions, 3 deletions
diff --git a/utils/sym_check/sym_check/extract.py b/utils/sym_check/sym_check/extract.py
index 7bafd8ec4c549..d132e22822bb8 100644
--- a/utils/sym_check/sym_check/extract.py
+++ b/utils/sym_check/sym_check/extract.py
@@ -12,9 +12,11 @@ extract - A set of function that extract symbol lists from shared libraries.
"""
import distutils.spawn
import sys
+import re
from sym_check import util
+extract_ignore_names = ['_init', '_fini']
class NMExtractor(object):
"""
@@ -65,7 +67,8 @@ class NMExtractor(object):
return None
new_sym = {
'name': bits[0],
- 'type': bits[1]
+ 'type': bits[1],
+ 'is_defined': (bits[1].lower() != 'u')
}
new_sym['name'] = new_sym['name'].replace('@@', '@')
new_sym = self._transform_sym_type(new_sym)
@@ -81,6 +84,8 @@ class NMExtractor(object):
"""
if sym is None or len(sym) < 2:
return False
+ if sym['name'] in extract_ignore_names:
+ return False
bad_types = ['t', 'b', 'r', 'd', 'w']
return (sym['type'] not in bad_types
and sym['name'] not in ['__bss_start', '_end', '_edata'])
@@ -148,8 +153,11 @@ class ReadElfExtractor(object):
'name': parts[7],
'size': int(parts[2]),
'type': parts[3],
+ 'is_defined': (parts[6] != 'UND')
}
assert new_sym['type'] in ['OBJECT', 'FUNC', 'NOTYPE']
+ if new_sym['name'] in extract_ignore_names:
+ continue
if new_sym['type'] == 'NOTYPE':
continue
if new_sym['type'] == 'FUNC':
diff --git a/utils/sym_check/sym_check/util.py b/utils/sym_check/sym_check/util.py
index 6ae71b01080ae..9543984673cc7 100644
--- a/utils/sym_check/sym_check/util.py
+++ b/utils/sym_check/sym_check/util.py
@@ -12,7 +12,7 @@ import distutils.spawn
import signal
import subprocess
import sys
-
+import re
def execute_command(cmd, input_str=None):
"""
@@ -79,9 +79,9 @@ def write_syms(sym_list, out=None, names_only=False):
"""
out_str = ''
out_list = sym_list
+ out_list.sort(key=lambda x: x['name'])
if names_only:
out_list = [sym['name'] for sym in sym_list]
- out_list.sort()
for sym in out_list:
out_str += '%s\n' % sym
if out is None:
@@ -135,3 +135,168 @@ def extract_or_load(filename):
if is_library_file(filename):
return sym_check.extract.extract_symbols(filename)
return read_syms_from_file(filename)
+
+def adjust_mangled_name(name):
+ if not name.startswith('__Z'):
+ return name
+ return name[1:]
+
+new_delete_std_symbols = [
+ '_Znam',
+ '_Znwm',
+ '_ZdaPv',
+ '_ZdaPvm',
+ '_ZdlPv',
+ '_ZdlPvm'
+]
+
+cxxabi_symbols = [
+ '___dynamic_cast',
+ '___gxx_personality_v0',
+ '_ZTIDi',
+ '_ZTIDn',
+ '_ZTIDs',
+ '_ZTIPDi',
+ '_ZTIPDn',
+ '_ZTIPDs',
+ '_ZTIPKDi',
+ '_ZTIPKDn',
+ '_ZTIPKDs',
+ '_ZTIPKa',
+ '_ZTIPKb',
+ '_ZTIPKc',
+ '_ZTIPKd',
+ '_ZTIPKe',
+ '_ZTIPKf',
+ '_ZTIPKh',
+ '_ZTIPKi',
+ '_ZTIPKj',
+ '_ZTIPKl',
+ '_ZTIPKm',
+ '_ZTIPKs',
+ '_ZTIPKt',
+ '_ZTIPKv',
+ '_ZTIPKw',
+ '_ZTIPKx',
+ '_ZTIPKy',
+ '_ZTIPa',
+ '_ZTIPb',
+ '_ZTIPc',
+ '_ZTIPd',
+ '_ZTIPe',
+ '_ZTIPf',
+ '_ZTIPh',
+ '_ZTIPi',
+ '_ZTIPj',
+ '_ZTIPl',
+ '_ZTIPm',
+ '_ZTIPs',
+ '_ZTIPt',
+ '_ZTIPv',
+ '_ZTIPw',
+ '_ZTIPx',
+ '_ZTIPy',
+ '_ZTIa',
+ '_ZTIb',
+ '_ZTIc',
+ '_ZTId',
+ '_ZTIe',
+ '_ZTIf',
+ '_ZTIh',
+ '_ZTIi',
+ '_ZTIj',
+ '_ZTIl',
+ '_ZTIm',
+ '_ZTIs',
+ '_ZTIt',
+ '_ZTIv',
+ '_ZTIw',
+ '_ZTIx',
+ '_ZTIy',
+ '_ZTSDi',
+ '_ZTSDn',
+ '_ZTSDs',
+ '_ZTSPDi',
+ '_ZTSPDn',
+ '_ZTSPDs',
+ '_ZTSPKDi',
+ '_ZTSPKDn',
+ '_ZTSPKDs',
+ '_ZTSPKa',
+ '_ZTSPKb',
+ '_ZTSPKc',
+ '_ZTSPKd',
+ '_ZTSPKe',
+ '_ZTSPKf',
+ '_ZTSPKh',
+ '_ZTSPKi',
+ '_ZTSPKj',
+ '_ZTSPKl',
+ '_ZTSPKm',
+ '_ZTSPKs',
+ '_ZTSPKt',
+ '_ZTSPKv',
+ '_ZTSPKw',
+ '_ZTSPKx',
+ '_ZTSPKy',
+ '_ZTSPa',
+ '_ZTSPb',
+ '_ZTSPc',
+ '_ZTSPd',
+ '_ZTSPe',
+ '_ZTSPf',
+ '_ZTSPh',
+ '_ZTSPi',
+ '_ZTSPj',
+ '_ZTSPl',
+ '_ZTSPm',
+ '_ZTSPs',
+ '_ZTSPt',
+ '_ZTSPv',
+ '_ZTSPw',
+ '_ZTSPx',
+ '_ZTSPy',
+ '_ZTSa',
+ '_ZTSb',
+ '_ZTSc',
+ '_ZTSd',
+ '_ZTSe',
+ '_ZTSf',
+ '_ZTSh',
+ '_ZTSi',
+ '_ZTSj',
+ '_ZTSl',
+ '_ZTSm',
+ '_ZTSs',
+ '_ZTSt',
+ '_ZTSv',
+ '_ZTSw',
+ '_ZTSx',
+ '_ZTSy'
+]
+
+def is_stdlib_symbol_name(name):
+ name = adjust_mangled_name(name)
+ if re.search("@GLIBC|@GCC", name):
+ return False
+ if re.search('(St[0-9])|(__cxa)|(__cxxabi)', name):
+ return True
+ if name in new_delete_std_symbols:
+ return True
+ if name in cxxabi_symbols:
+ return True
+ if name.startswith('_Z'):
+ return True
+ return False
+
+def filter_stdlib_symbols(syms):
+ stdlib_symbols = []
+ other_symbols = []
+ for s in syms:
+ canon_name = adjust_mangled_name(s['name'])
+ if not is_stdlib_symbol_name(canon_name):
+ assert not s['is_defined'] and "found defined non-std symbol"
+ other_symbols += [s]
+ else:
+ stdlib_symbols += [s]
+ return stdlib_symbols, other_symbols
diff --git a/utils/sym_check/sym_diff.py b/utils/sym_check/sym_diff.py
index 69c340028c6ba..842e908dd42ea 100755
--- a/utils/sym_check/sym_diff.py
+++ b/utils/sym_check/sym_diff.py
@@ -24,6 +24,13 @@ def main():
help='Only print symbol names',
action='store_true', default=False)
parser.add_argument(
+ '--removed-only', dest='removed_only',
+ help='Only print removed symbols',
+ action='store_true', default=False)
+ parser.add_argument('--only-stdlib-symbols', dest='only_stdlib',
+ help="Filter all symbols not related to the stdlib",
+ action='store_true', default=False)
+ parser.add_argument(
'-o', '--output', dest='output',
help='The output file. stdout is used if not given',
type=str, action='store', default=None)
@@ -40,7 +47,13 @@ def main():
old_syms_list = util.extract_or_load(args.old_syms)
new_syms_list = util.extract_or_load(args.new_syms)
+ if args.only_stdlib:
+ old_syms_list, _ = util.filter_stdlib_symbols(old_syms_list)
+ new_syms_list, _ = util.filter_stdlib_symbols(new_syms_list)
+
added, removed, changed = diff.diff(old_syms_list, new_syms_list)
+ if args.removed_only:
+ added = {}
report, is_break = diff.report_diff(added, removed, changed,
names_only=args.names_only,
demangle=args.demangle)
diff --git a/utils/sym_check/sym_extract.py b/utils/sym_check/sym_extract.py
index a0fbb3e6341a9..27765679ed809 100755
--- a/utils/sym_check/sym_extract.py
+++ b/utils/sym_check/sym_extract.py
@@ -25,11 +25,16 @@ def main():
parser.add_argument('--names-only', dest='names_only',
help='Output only the name of the symbol',
action='store_true', default=False)
+ parser.add_argument('--only-stdlib-symbols', dest='only_stdlib',
+ help="Filter all symbols not related to the stdlib",
+ action='store_true', default=False)
args = parser.parse_args()
if args.output is not None:
print('Extracting symbols from %s to %s.'
% (args.library, args.output))
syms = extract.extract_symbols(args.library)
+ if args.only_stdlib:
+ syms, other_syms = util.filter_stdlib_symbols(syms)
util.write_syms(syms, out=args.output, names_only=args.names_only)
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-11 17:27:26 +0000