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Make the missing symbols script more useful.

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If something's in POSIX, we don't need to show it in the glibc list.

If something's not implemented by glibc, we don't need to show it in the
POSIX list (because it's probably either a macro or obsolete).

Change-Id: Ied0f8d97d3fffb280c22e9cdf6782430d776c02f
This commit is contained in:
Elliott Hughes 2014-12-04 11:24:48 -08:00
parent 230005c4bd
commit 0393221f47
1 changed files with 18 additions and 13 deletions
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31
libc/tools/check-symbols-glibc.py
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@ -81,12 +81,12 @@ glibc_to_bionic_names = {
'__xpg_basename': '__gnu_basename',
}
glibc = GetSymbolsFromSystemSo('libc.so.*', 'librt.so.*', 'libpthread.so.*', 'libresolv.so.*', 'libm.so.*')
glibc = GetSymbolsFromSystemSo('libc.so.*', 'librt.so.*', 'libpthread.so.*', 'libresolv.so.*', 'libm.so.*', 'libutil.so.*')
bionic = GetSymbolsFromAndroidSo('libc.so', 'libm.so')
posix = GetSymbolsFromTxt(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'posix-2013.txt'))
ndk_ignored = GetNdkIgnored()
glibc = map(MangleGlibcNameToBionic, glibc)
glibc = set(map(MangleGlibcNameToBionic, glibc))
# bionic includes various BSD symbols to ease porting other BSD-licensed code.
bsd_stuff = set([
@ -189,21 +189,26 @@ known = set([
])
if not only_unwanted:
print 'glibc:'
for symbol in sorted(glibc):
print symbol
#print 'glibc:'
#for symbol in sorted(glibc):
# print symbol
#print
print
print 'bionic:'
for symbol in sorted(bionic):
print symbol
#print 'bionic:'
#for symbol in sorted(bionic):
# print symbol
#print
print
print 'in posix but not bionic:'
for symbol in sorted(posix.difference(bionic)):
print 'in glibc (but not posix) but not bionic:'
for symbol in sorted((glibc - posix).difference(bionic)):
print symbol
print
print 'in posix (and implemented in glibc) but not bionic:'
for symbol in sorted((posix.intersection(glibc)).difference(bionic)):
print symbol
print
print 'in bionic but not glibc:'
allowed_stuff = (bsd_stuff | FORTIFY_stuff | linux_stuff | macro_stuff |