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authorStefan Liebler <stli@linux.ibm.com>2020-08-20 10:45:26 +0200
committerStefan Liebler <stli@linux.ibm.com>2020-08-20 10:45:26 +0200
commite1fd4bbe31581ffe6ebd79555e3cd78f77bba26b (patch)
tree2bf844e618725e29890072f8aaf04754b0bff3c7 /io/sys
parente5baabf57b1f6bcaf60068b3fd24af649e4e91c6 (diff)
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Fix namespace violation in stdio.h and sys/stat.h if build with optimization. [BZ #26376]
If build with optimization, stdio.h and sys/stat.h are defining some inlining functions. This leads to test fails if glibc is build with the following commands. (Note that the conformtests usually builds without optimization or other CFLAGS): <glibc>/configure CC="gcc -O3" --prefix=/usr make make subdirs=conform check - FAIL: conform/XPG4/stdio.h/conform - FAIL: conform/XPG42/stdio.h/conform out-files: ... PASSCOMBINED: Availability of variable optopt PASSCOMBINED: Type of variable optopt Namespace violation: "getc_unlocked" Namespace violation: "getchar_unlocked" Namespace violation: "putc_unlocked" Namespace violation: "putchar_unlocked" FAIL: Namespace of <stdio.h> ---------------------------------------------------------------------------- Total number of tests : 168 Number of failed tests : 1 Number of xfailed tests : 0 Number of skipped tests : 0 - FAIL: conform/POSIX2008/sys/stat.h/conform out-file: ... PASSCOMBINED: Availability of function utimensat PASSCOMBINED: Type of function utimensat Namespace violation: "mknodat" FAIL: Namespace of <sys/stat.h> ---------------------------------------------------------------------------- Total number of tests : 97 Number of failed tests : 1 Number of xfailed tests : 0 Number of skipped tests : 0 For getc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked in stdio.h, those are defined "# ifdef __USE_POSIX" instead of "#ifdef __USE_POSIX199506" for the non-inlining declaration. See also "Bug 20014 - stdio.h namespace for pre-threads POSIX" (https://sourceware.org/bugzilla/show_bug.cgi?id=20014). For mknodat in sys/stat.h, those are defined "# ifdef __USE_ATFILE" instead of the additional guard "# if defined __USE_MISC || defined __USE_XOPEN_EXTENDED".
Diffstat (limited to 'io/sys')
-rw-r--r--io/sys/stat.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/io/sys/stat.h b/io/sys/stat.h
index ce014d0..69e3336 100644
--- a/io/sys/stat.h
+++ b/io/sys/stat.h
@@ -486,13 +486,15 @@ __NTH (mknod (const char *__path, __mode_t __mode, __dev_t __dev))
}
# endif
-# ifdef __USE_ATFILE
+# if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
+# ifdef __USE_ATFILE
__extern_inline int
__NTH (mknodat (int __fd, const char *__path, __mode_t __mode,
__dev_t __dev))
{
return __xmknodat (_MKNOD_VER, __fd, __path, __mode, &__dev);
}
+# endif
# endif
# if defined __USE_LARGEFILE64 \