Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/harfbuzz/src/check-symbols.py @ 22:d77477b4e151

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Let _int_rc() also handle (i.e. ignore) a local version suffix
author Franz Glasner <fzglas.hg@dom66.de>
date Fri, 19 Sep 2025 12:05:57 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
1 #!/usr/bin/env python3
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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2
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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3 import sys, os, shutil, subprocess, re, difflib
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4
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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5 os.environ['LC_ALL'] = 'C' # otherwise 'nm' prints in wrong order
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6
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7 builddir = os.getenv ('builddir', os.path.dirname (__file__))
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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8 libs = os.getenv ('libs', '.libs')
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9
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10 IGNORED_SYMBOLS = '|'.join(['_fini', '_init', '_fdata', '_ftext', '_fbss',
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11 '__bss_start', '__bss_start__', '__bss_end__', '_edata', '_end', '_bss_end__',
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12 '__end__', '__gcov_.*', 'llvm_.*', 'flush_fn_list', 'writeout_fn_list', 'mangle_path',
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13 'lprofDirMode', 'reset_fn_list'])
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14
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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15 nm = os.getenv ('NM', shutil.which ('nm'))
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16 if not nm:
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17 print ('check-symbols.py: \'nm\' not found; skipping test')
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18 sys.exit (77)
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20 cxxfilt = shutil.which ('c++filt')
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21
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22 tested = False
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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23 stat = 0
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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25 for soname in ['harfbuzz', 'harfbuzz-subset', 'harfbuzz-icu', 'harfbuzz-gobject']:
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26 for suffix in ['so', 'dylib']:
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27 so = os.path.join (builddir, libs, 'lib%s.%s' % (soname, suffix))
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28 if not os.path.exists (so): continue
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30 # On macOS, C symbols are prefixed with _
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31 symprefix = '_' if suffix == 'dylib' else ''
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32
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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33 EXPORTED_SYMBOLS = [s.split ()[2]
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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34 for s in re.findall (r'^.+ [BCDGIRSTu] .+$', subprocess.check_output (nm.split() + [so]).decode ('utf-8'), re.MULTILINE)
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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35 if not re.match (r'.* %s(%s)\b' % (symprefix, IGNORED_SYMBOLS), s)]
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37 # run again c++filt also if is available
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38 if cxxfilt:
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39 EXPORTED_SYMBOLS = subprocess.check_output (
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40 [cxxfilt], input='\n'.join (EXPORTED_SYMBOLS).encode ()
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41 ).decode ('utf-8').splitlines ()
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43 prefix = (symprefix + os.path.basename (so)).replace ('libharfbuzz', 'hb').replace ('-', '_').split ('.')[0]
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45 print ('Checking that %s does not expose internal symbols' % so)
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46 suspicious_symbols = [x for x in EXPORTED_SYMBOLS if not re.match (r'^%s(_|$)' % prefix, x)]
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47 if suspicious_symbols:
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48 print ('Ouch, internal symbols exposed:', suspicious_symbols)
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49 stat = 1
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51 def_path = os.path.join (builddir, soname + '.def')
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52 if not os.path.exists (def_path):
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53 print ('\'%s\' not found; skipping' % def_path)
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54 else:
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55 print ('Checking that %s has the same symbol list as %s' % (so, def_path))
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56 with open (def_path, 'r', encoding='utf-8') as f: def_file = f.read ()
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57 diff_result = list (difflib.context_diff (
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58 def_file.splitlines (),
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59 ['EXPORTS'] + [re.sub ('^%shb' % symprefix, 'hb', x) for x in EXPORTED_SYMBOLS] +
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60 # cheat: copy the last line from the def file!
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61 [def_file.splitlines ()[-1]]
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62 ))
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63
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64 if diff_result:
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65 print ('\n'.join (diff_result))
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66 stat = 1
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68 tested = True
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70 if not tested:
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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71 print ('check-symbols.py: no shared libraries found; skipping test')
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72 sys.exit (77)
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74 sys.exit (stat)