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debug: Improve mqueue.h fortify warnings with clang
It improve mq_open. The compile and runtime checks have similar coverage as with GCC. Checked on aarch64, armhf, x86_64, and i686. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
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@ -29,6 +29,8 @@ extern mqd_t __mq_open_2 (const char *__name, int __oflag)
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extern mqd_t __REDIRECT_NTH (__mq_open_alias, (const char *__name,
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int __oflag, ...), mq_open)
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__nonnull ((1));
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#ifdef __va_arg_pack_len
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__errordecl (__mq_open_wrong_number_of_args,
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"mq_open can be called either with 2 or 4 arguments");
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__errordecl (__mq_open_missing_mode_and_attr,
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@ -55,3 +57,30 @@ __NTH (mq_open (const char *__name, int __oflag, ...))
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return __mq_open_alias (__name, __oflag, __va_arg_pack ());
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}
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#elif __fortify_use_clang
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__fortify_function_error_function __attribute_overloadable__ mqd_t
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__NTH (mq_open (const char *__name, int __oflag, mode_t mode))
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__fortify_clang_unavailable ("mq_open can be called either with 2 or 4 arguments");
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__fortify_function_error_function __attribute_overloadable__ mqd_t
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__NTH (mq_open (const char *__name, int __oflag, mode_t mode,
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struct mq_attr *attr, ...))
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__fortify_clang_unavailable ("mq_open can be called either with 2 or 4 arguments");
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__fortify_function __attribute_overloadable__ mqd_t
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__NTH (mq_open (__fortify_clang_overload_arg (const char *, ,__name),
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int __oflag))
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__fortify_clang_prefer_this_overload
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__fortify_clang_error ((__oflag & O_CREAT),
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"mq_open with O_CREAT in second argument needs 4 arguments")
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{
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return __mq_open_alias (__name, __oflag);
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}
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__fortify_function __attribute_overloadable__ mqd_t
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__NTH (mq_open (__fortify_clang_overload_arg (const char *, ,__name),
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int __oflag, int __mode, struct mq_attr *__attr))
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{
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return __mq_open_alias (__name, __oflag, __mode, __attr);
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}
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#endif
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@ -110,8 +110,7 @@ extern int __REDIRECT (mq_timedsend, (mqd_t __mqdes,
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#endif
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/* Define some inlines helping to catch common problems. */
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#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function \
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&& defined __va_arg_pack_len
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#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function
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# include <bits/mqueue2.h>
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#endif
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