Mercurial > hgrepos > Python2 > PyMuPDF
comparison mupdf-source/thirdparty/harfbuzz/src/check-symbols.py @ 2:b50eed0cc0ef upstream
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
The directory name has changed: no version number in the expanded directory now.
| author | Franz Glasner <fzglas.hg@dom66.de> |
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| date | Mon, 15 Sep 2025 11:43:07 +0200 |
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| 1:1d09e1dec1d9 | 2:b50eed0cc0ef |
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| 1 #!/usr/bin/env python3 | |
| 2 | |
| 3 import sys, os, shutil, subprocess, re, difflib | |
| 4 | |
| 5 os.environ['LC_ALL'] = 'C' # otherwise 'nm' prints in wrong order | |
| 6 | |
| 7 builddir = os.getenv ('builddir', os.path.dirname (__file__)) | |
| 8 libs = os.getenv ('libs', '.libs') | |
| 9 | |
| 10 IGNORED_SYMBOLS = '|'.join(['_fini', '_init', '_fdata', '_ftext', '_fbss', | |
| 11 '__bss_start', '__bss_start__', '__bss_end__', '_edata', '_end', '_bss_end__', | |
| 12 '__end__', '__gcov_.*', 'llvm_.*', 'flush_fn_list', 'writeout_fn_list', 'mangle_path', | |
| 13 'lprofDirMode', 'reset_fn_list']) | |
| 14 | |
| 15 nm = os.getenv ('NM', shutil.which ('nm')) | |
| 16 if not nm: | |
| 17 print ('check-symbols.py: \'nm\' not found; skipping test') | |
| 18 sys.exit (77) | |
| 19 | |
| 20 cxxfilt = shutil.which ('c++filt') | |
| 21 | |
| 22 tested = False | |
| 23 stat = 0 | |
| 24 | |
| 25 for soname in ['harfbuzz', 'harfbuzz-subset', 'harfbuzz-icu', 'harfbuzz-gobject']: | |
| 26 for suffix in ['so', 'dylib']: | |
| 27 so = os.path.join (builddir, libs, 'lib%s.%s' % (soname, suffix)) | |
| 28 if not os.path.exists (so): continue | |
| 29 | |
| 30 # On macOS, C symbols are prefixed with _ | |
| 31 symprefix = '_' if suffix == 'dylib' else '' | |
| 32 | |
| 33 EXPORTED_SYMBOLS = [s.split ()[2] | |
| 34 for s in re.findall (r'^.+ [BCDGIRSTu] .+$', subprocess.check_output (nm.split() + [so]).decode ('utf-8'), re.MULTILINE) | |
| 35 if not re.match (r'.* %s(%s)\b' % (symprefix, IGNORED_SYMBOLS), s)] | |
| 36 | |
| 37 # run again c++filt also if is available | |
| 38 if cxxfilt: | |
| 39 EXPORTED_SYMBOLS = subprocess.check_output ( | |
| 40 [cxxfilt], input='\n'.join (EXPORTED_SYMBOLS).encode () | |
| 41 ).decode ('utf-8').splitlines () | |
| 42 | |
| 43 prefix = (symprefix + os.path.basename (so)).replace ('libharfbuzz', 'hb').replace ('-', '_').split ('.')[0] | |
| 44 | |
| 45 print ('Checking that %s does not expose internal symbols' % so) | |
| 46 suspicious_symbols = [x for x in EXPORTED_SYMBOLS if not re.match (r'^%s(_|$)' % prefix, x)] | |
| 47 if suspicious_symbols: | |
| 48 print ('Ouch, internal symbols exposed:', suspicious_symbols) | |
| 49 stat = 1 | |
| 50 | |
| 51 def_path = os.path.join (builddir, soname + '.def') | |
| 52 if not os.path.exists (def_path): | |
| 53 print ('\'%s\' not found; skipping' % def_path) | |
| 54 else: | |
| 55 print ('Checking that %s has the same symbol list as %s' % (so, def_path)) | |
| 56 with open (def_path, 'r', encoding='utf-8') as f: def_file = f.read () | |
| 57 diff_result = list (difflib.context_diff ( | |
| 58 def_file.splitlines (), | |
| 59 ['EXPORTS'] + [re.sub ('^%shb' % symprefix, 'hb', x) for x in EXPORTED_SYMBOLS] + | |
| 60 # cheat: copy the last line from the def file! | |
| 61 [def_file.splitlines ()[-1]] | |
| 62 )) | |
| 63 | |
| 64 if diff_result: | |
| 65 print ('\n'.join (diff_result)) | |
| 66 stat = 1 | |
| 67 | |
| 68 tested = True | |
| 69 | |
| 70 if not tested: | |
| 71 print ('check-symbols.py: no shared libraries found; skipping test') | |
| 72 sys.exit (77) | |
| 73 | |
| 74 sys.exit (stat) |