2 Commits

Author	SHA1	Message	Date
Joseph Myers	b168057aaa	Update copyright dates with scripts/update-copyrights.	2015-01-02 16:29:47 +00:00
Joseph Myers	24f4f8253f	Add tests for namespace for static linking. ... One thing we currently try to ensure manually is that glibc is namespace-clean for static linking; that is, if you only use features from a particular standard (including the set of features exposed by headers given feature test macros such as _DEFAULT_SOURCE that don't correspond to any written standard), the library objects brought in by the static linker will not define or use (strong) names that are reserved to the user in that standard. This patch implements automatic tests for this, using the same set of standards as for the header conformance tests (it would, however, be easy to add more standards for this testing, without them needing to have the definitions of expected header contents for the header tests). The tests are based on the functions declared in each header, as extracted using GCC's -aux-info option. The following comment from linknamespace.pl explains the caveats around this approach: Here's an example of the output for ISO (C90) assert.h, from before my recent fixes and whitelisting of cases that seem more complicated to fix: [initial] __assert_fail -> [libc.a(assert.o)] free -> [libc.a(malloc.o)] __get_nprocs -> [libc.a(getsysstats.o)] fgets_unlocked [initial] __assert_fail -> [libc.a(assert.o)] __dcgettext -> [libc.a(dcgettext.o)] __dcigettext -> [libc.a(dcigettext.o)] __libc_setlocale_lock -> [libc.a(setlocale.o)] _nl_archive_subfreeres -> [libc.a(loadarchive.o)] __sysconf -> [libc.a(sysconf.o)] __tzname_max -> [libc.a(tzset.o)] __tzfile_compute -> [libc.a(tzfile.o)] fileno [initial] __assert_fail -> [libc.a(assert.o)] __dcgettext -> [libc.a(dcgettext.o)] __dcigettext -> [libc.a(dcigettext.o)] __libc_setlocale_lock -> [libc.a(setlocale.o)] _nl_archive_subfreeres -> [libc.a(loadarchive.o)] __sysconf -> [libc.a(sysconf.o)] __tzname_max -> [libc.a(tzset.o)] __tzfile_compute -> [libc.a(tzfile.o)] fread_unlocked [initial] __assert_fail -> [libc.a(assert.o)] __dcgettext -> [libc.a(dcgettext.o)] __dcigettext -> [libc.a(dcigettext.o)] __libc_setlocale_lock -> [libc.a(setlocale.o)] _nl_archive_subfreeres -> [libc.a(loadarchive.o)] __sysconf -> [libc.a(sysconf.o)] __tzname_max -> [libc.a(tzset.o)] __tzfile_compute -> [libc.a(tzfile.o)] ftello [initial] __assert_fail -> [libc.a(assert.o)] free -> [libc.a(malloc.o)] malloc_info [initial] __assert_fail -> [libc.a(assert.o)] __dcgettext -> [libc.a(dcgettext.o)] __dcigettext -> [libc.a(dcigettext.o)] __libc_setlocale_lock -> [libc.a(setlocale.o)] _nl_default_locale_path -> [libc.a(findlocale.o)] memmem [initial] __assert_perror_fail -> [libc.a(assert-perr.o)] __strerror_r -> [libc.a(_strerror.o)] mempcpy [initial] __assert_fail -> [libc.a(assert.o)] __dcgettext -> [libc.a(dcgettext.o)] __dcigettext -> [libc.a(dcigettext.o)] _nl_find_domain -> [libc.a(finddomain.o)] _nl_expand_alias -> [libc.a(localealias.o)] qsort -> [libc.a(msort.o)] qsort_r [initial] __assert_fail -> [libc.a(assert.o)] _dl_pagesize -> [libc.a(dl-support.o)] __rawmemchr -> [libc.a(rawmemchr.o)] rawmemchr [initial] __assert_fail -> [libc.a(assert.o)] __dcgettext -> [libc.a(dcgettext.o)] __dcigettext -> [libc.a(dcigettext.o)] __getcwd -> [libc.a(getcwd.o)] rewinddir [initial] __assert_fail -> [libc.a(assert.o)] stderr [initial] __assert_fail -> [libc.a(assert.o)] stderr -> [libc.a(stdio.o)] stdin [initial] __assert_fail -> [libc.a(assert.o)] stderr -> [libc.a(stdio.o)] stdout [initial] __assert_fail -> [libc.a(assert.o)] __dcgettext -> [libc.a(dcgettext.o)] __dcigettext -> [libc.a(dcigettext.o)] stpcpy [initial] __assert_fail -> [libc.a(assert.o)] __fxprintf -> [libc.a(fxprintf.o)] _IO_vfprintf -> [libc.a(vfprintf.o)] __printf_fp -> [libc.a(printf_fp.o)] wmemset Of the 161 XFAILs, seven are the inevitable varargs.h and ndbm.h failures; I think the remaining 154 mostly represent genuine bugs in glibc that should mostly be straightforward to fix (probably rather fewer than 154 bugs - issues generally affect multiple headers, for multiple standards). (When fixing, of course you need to file a bug in Bugzilla, and check for the possibility that the header conditionals are what's incorrect - that the first listed symbol shouldn't have been declared, or that the symbol finally brought in should have been declared.) * conform/GlibcConform.pm: New file. * conform/conformtest.pl: Use GlibcConform module. * conform/linknamespace.pl: New file. * conform/list-header-symbols.pl: Likewise. * conform/Makefile (linknamespace-symlists-base): New variable. (linknamespace-symlists-tests): Likewise. (linknamespace-header-base): Likewise. (linknamespace-header-tests): Likewise. (tests-special): Add new tests. ($(linknamespace-symlists-tests)): New rule. (linknamespace-libs): New variable. ($(objpfx)symlist-stdlibs): New rule. ($(linknamespace-header-tests)): Likewise. (test-xfail-XPG3/varargs.h/linknamespace): New variable. (test-xfail-XPG4/varargs.h/linknamespace): Likewise. (test-xfail-UNIX98/varargs.h/linknamespace): Likewise. (test-xfail-XPG4/ndbm.h/linknamespace): Likewise. (test-xfail-UNIX98/ndbm.h/linknamespace): Likewise. (test-xfail-XOPEN2K/ndbm.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/ndbm.h/linknamespace): Likewise. (test-xfail-ISO/math.h/linknamespace): Likewise. (test-xfail-ISO/signal.h/linknamespace): Likewise. (test-xfail-ISO/stdio.h/linknamespace): Likewise. (test-xfail-ISO/time.h/linknamespace): Likewise. (test-xfail-ISO99/complex.h/linknamespace): Likewise. (test-xfail-ISO99/ctype.h/linknamespace): Likewise. (test-xfail-ISO99/math.h/linknamespace): Likewise. (test-xfail-ISO99/signal.h/linknamespace): Likewise. (test-xfail-ISO99/stdio.h/linknamespace): Likewise. (test-xfail-ISO99/tgmath.h/linknamespace): Likewise. (test-xfail-ISO11/complex.h/linknamespace): Likewise. (test-xfail-ISO11/ctype.h/linknamespace): Likewise. (test-xfail-ISO11/math.h/linknamespace): Likewise. (test-xfail-ISO11/signal.h/linknamespace): Likewise. (test-xfail-ISO11/stdio.h/linknamespace): Likewise. (test-xfail-ISO11/tgmath.h/linknamespace): Likewise. (test-xfail-XPG3/ctype.h/linknamespace): Likewise. (test-xfail-XPG3/fnmatch.h/linknamespace): Likewise. (test-xfail-XPG3/glob.h/linknamespace): Likewise. (test-xfail-XPG3/math.h/linknamespace): Likewise. (test-xfail-XPG3/regex.h/linknamespace): Likewise. (test-xfail-XPG3/search.h/linknamespace): Likewise. (test-xfail-XPG3/stdio.h/linknamespace): Likewise. (test-xfail-XPG3/time.h/linknamespace): Likewise. (test-xfail-XPG3/unistd.h/linknamespace): Likewise. (test-xfail-XPG3/wordexp.h/linknamespace): Likewise. (test-xfail-XPG4/ctype.h/linknamespace): Likewise. (test-xfail-XPG4/fmtmsg.h/linknamespace): Likewise. (test-xfail-XPG4/fnmatch.h/linknamespace): Likewise. (test-xfail-XPG4/glob.h/linknamespace): Likewise. (test-xfail-XPG4/grp.h/linknamespace): Likewise. (test-xfail-XPG4/libgen.h/linknamespace): Likewise. (test-xfail-XPG4/math.h/linknamespace): Likewise. (test-xfail-XPG4/netdb.h/linknamespace): Likewise. (test-xfail-XPG4/pwd.h/linknamespace): Likewise. (test-xfail-XPG4/regex.h/linknamespace): Likewise. (test-xfail-XPG4/search.h/linknamespace): Likewise. (test-xfail-XPG4/stdio.h/linknamespace): Likewise. (test-xfail-XPG4/stdlib.h/linknamespace): Likewise. (test-xfail-XPG4/sys/mman.h/linknamespace): Likewise. (test-xfail-XPG4/sys/statvfs.h/linknamespace): Likewise. (test-xfail-XPG4/syslog.h/linknamespace): Likewise. (test-xfail-XPG4/time.h/linknamespace): Likewise. (test-xfail-XPG4/unistd.h/linknamespace): Likewise. (test-xfail-XPG4/wordexp.h/linknamespace): Likewise. (test-xfail-POSIX/aio.h/linknamespace): Likewise. (test-xfail-POSIX/fnmatch.h/linknamespace): Likewise. (test-xfail-POSIX/glob.h/linknamespace): Likewise. (test-xfail-POSIX/math.h/linknamespace): Likewise. (test-xfail-POSIX/mqueue.h/linknamespace): Likewise. (test-xfail-POSIX/pthread.h/linknamespace): Likewise. (test-xfail-POSIX/regex.h/linknamespace): Likewise. (test-xfail-POSIX/sched.h/linknamespace): Likewise. (test-xfail-POSIX/semaphore.h/linknamespace): Likewise. (test-xfail-POSIX/sys/mman.h/linknamespace): Likewise. (test-xfail-POSIX/time.h/linknamespace): Likewise. (test-xfail-POSIX/unistd.h/linknamespace): Likewise. (test-xfail-POSIX/wordexp.h/linknamespace): Likewise. (test-xfail-UNIX98/aio.h/linknamespace): Likewise. (test-xfail-UNIX98/ctype.h/linknamespace): Likewise. (test-xfail-UNIX98/fmtmsg.h/linknamespace): Likewise. (test-xfail-UNIX98/fnmatch.h/linknamespace): Likewise. (test-xfail-UNIX98/glob.h/linknamespace): Likewise. (test-xfail-UNIX98/grp.h/linknamespace): Likewise. (test-xfail-UNIX98/libgen.h/linknamespace): Likewise. (test-xfail-UNIX98/math.h/linknamespace): Likewise. (test-xfail-UNIX98/mqueue.h/linknamespace): Likewise. (test-xfail-UNIX98/netdb.h/linknamespace): Likewise. (test-xfail-UNIX98/pthread.h/linknamespace): Likewise. (test-xfail-UNIX98/pwd.h/linknamespace): Likewise. (test-xfail-UNIX98/regex.h/linknamespace): Likewise. (test-xfail-UNIX98/sched.h/linknamespace): Likewise. (test-xfail-UNIX98/search.h/linknamespace): Likewise. (test-xfail-UNIX98/semaphore.h/linknamespace): Likewise. (test-xfail-UNIX98/stdio.h/linknamespace): Likewise. (test-xfail-UNIX98/stdlib.h/linknamespace): Likewise. (test-xfail-UNIX98/sys/mman.h/linknamespace): Likewise. (test-xfail-UNIX98/sys/statvfs.h/linknamespace): Likewise. (test-xfail-UNIX98/syslog.h/linknamespace): Likewise. (test-xfail-UNIX98/time.h/linknamespace): Likewise. (test-xfail-UNIX98/unistd.h/linknamespace): Likewise. (test-xfail-UNIX98/wchar.h/linknamespace): Likewise. (test-xfail-UNIX98/wordexp.h/linknamespace): Likewise. (test-xfail-XOPEN2K/aio.h/linknamespace): Likewise. (test-xfail-XOPEN2K/complex.h/linknamespace): Likewise. (test-xfail-XOPEN2K/fcntl.h/linknamespace): Likewise. (test-xfail-XOPEN2K/fmtmsg.h/linknamespace): Likewise. (test-xfail-XOPEN2K/fnmatch.h/linknamespace): Likewise. (test-xfail-XOPEN2K/glob.h/linknamespace): Likewise. (test-xfail-XOPEN2K/grp.h/linknamespace): Likewise. (test-xfail-XOPEN2K/libgen.h/linknamespace): Likewise. (test-xfail-XOPEN2K/math.h/linknamespace): Likewise. (test-xfail-XOPEN2K/mqueue.h/linknamespace): Likewise. (test-xfail-XOPEN2K/net/if.h/linknamespace): Likewise. (test-xfail-XOPEN2K/netdb.h/linknamespace): Likewise. (test-xfail-XOPEN2K/pthread.h/linknamespace): Likewise. (test-xfail-XOPEN2K/pwd.h/linknamespace): Likewise. (test-xfail-XOPEN2K/regex.h/linknamespace): Likewise. (test-xfail-XOPEN2K/search.h/linknamespace): Likewise. (test-xfail-XOPEN2K/semaphore.h/linknamespace): Likewise. (test-xfail-XOPEN2K/signal.h/linknamespace): Likewise. (test-xfail-XOPEN2K/spawn.h/linknamespace): Likewise. (test-xfail-XOPEN2K/stdlib.h/linknamespace): Likewise. (test-xfail-XOPEN2K/sys/mman.h/linknamespace): Likewise. (test-xfail-XOPEN2K/sys/statvfs.h/linknamespace): Likewise. (test-xfail-XOPEN2K/sys/wait.h/linknamespace): Likewise. (test-xfail-XOPEN2K/syslog.h/linknamespace): Likewise. (test-xfail-XOPEN2K/tgmath.h/linknamespace): Likewise. (test-xfail-XOPEN2K/time.h/linknamespace): Likewise. (test-xfail-XOPEN2K/ucontext.h/linknamespace): Likewise. (test-xfail-XOPEN2K/unistd.h/linknamespace): Likewise. (test-xfail-XOPEN2K/wordexp.h/linknamespace): Likewise. (test-xfail-POSIX2008/aio.h/linknamespace): Likewise. (test-xfail-POSIX2008/complex.h/linknamespace): Likewise. (test-xfail-POSIX2008/ctype.h/linknamespace): Likewise. (test-xfail-POSIX2008/dirent.h/linknamespace): Likewise. (test-xfail-POSIX2008/fcntl.h/linknamespace): Likewise. (test-xfail-POSIX2008/grp.h/linknamespace): Likewise. (test-xfail-POSIX2008/math.h/linknamespace): Likewise. (test-xfail-POSIX2008/mqueue.h/linknamespace): Likewise. (test-xfail-POSIX2008/net/if.h/linknamespace): Likewise. (test-xfail-POSIX2008/netdb.h/linknamespace): Likewise. (test-xfail-POSIX2008/pthread.h/linknamespace): Likewise. (test-xfail-POSIX2008/regex.h/linknamespace): Likewise. (test-xfail-POSIX2008/semaphore.h/linknamespace): Likewise. (test-xfail-POSIX2008/spawn.h/linknamespace): Likewise. (test-xfail-POSIX2008/sys/mman.h/linknamespace): Likewise. (test-xfail-POSIX2008/sys/statvfs.h/linknamespace): Likewise. (test-xfail-POSIX2008/tgmath.h/linknamespace): Likewise. (test-xfail-POSIX2008/time.h/linknamespace): Likewise. (test-xfail-POSIX2008/unistd.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/aio.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/complex.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/dirent.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/fcntl.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/fmtmsg.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/grp.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/libgen.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/math.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/mqueue.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/net/if.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/netdb.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/pthread.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/pwd.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/regex.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/search.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/semaphore.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/spawn.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/sys/mman.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/sys/statvfs.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/syslog.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/tgmath.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/time.h/linknamespace): Likewise. (test-xfail-XOPEN2K8/unistd.h/linknamespace): Likewise.	2014-11-12 22:45:25 +00:00