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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-02-08 15:46:22 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-02-27 10:52:59 -0300 |
| commit | c23107effbfe5300cee216a401009ebbc6e274f4 (patch) | |
| tree | f424f4744d7ae8a0d83e1558fdced94d4783ad85 /rt | |
| parent | 86889e22db329abac618c6a41f86c84657a15324 (diff) | |
| download | glibc-c23107effbfe5300cee216a401009ebbc6e274f4.tar.gz glibc-c23107effbfe5300cee216a401009ebbc6e274f4.tar.xz glibc-c23107effbfe5300cee216a401009ebbc6e274f4.zip | |
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>
Diffstat (limited to 'rt')
| -rw-r--r-- | rt/bits/mqueue2.h | 29 | ||||
| -rw-r--r-- | rt/mqueue.h | 3 |
2 files changed, 30 insertions, 2 deletions
diff --git a/rt/bits/mqueue2.h b/rt/bits/mqueue2.h index 0f9d67966f..d6d2d9012d 100644 --- a/rt/bits/mqueue2.h +++ b/rt/bits/mqueue2.h @@ -29,6 +29,8 @@ extern mqd_t __mq_open_2 (const char *__name, int __oflag) extern mqd_t __REDIRECT_NTH (__mq_open_alias, (const char *__name, int __oflag, ...), mq_open) __nonnull ((1)); + +#ifdef __va_arg_pack_len __errordecl (__mq_open_wrong_number_of_args, "mq_open can be called either with 2 or 4 arguments"); __errordecl (__mq_open_missing_mode_and_attr, @@ -55,3 +57,30 @@ __NTH (mq_open (const char *__name, int __oflag, ...)) return __mq_open_alias (__name, __oflag, __va_arg_pack ()); } +#elif __fortify_use_clang +__fortify_function_error_function __attribute_overloadable__ mqd_t +__NTH (mq_open (const char *__name, int __oflag, mode_t mode)) + __fortify_clang_unavailable ("mq_open can be called either with 2 or 4 arguments"); + +__fortify_function_error_function __attribute_overloadable__ mqd_t +__NTH (mq_open (const char *__name, int __oflag, mode_t mode, + struct mq_attr *attr, ...)) + __fortify_clang_unavailable ("mq_open can be called either with 2 or 4 arguments"); + +__fortify_function __attribute_overloadable__ mqd_t +__NTH (mq_open (__fortify_clang_overload_arg (const char *, ,__name), + int __oflag)) + __fortify_clang_prefer_this_overload + __fortify_clang_error ((__oflag & O_CREAT), + "mq_open with O_CREAT in second argument needs 4 arguments") +{ + return __mq_open_alias (__name, __oflag); +} + +__fortify_function __attribute_overloadable__ mqd_t +__NTH (mq_open (__fortify_clang_overload_arg (const char *, ,__name), + int __oflag, int __mode, struct mq_attr *__attr)) +{ + return __mq_open_alias (__name, __oflag, __mode, __attr); +} +#endif diff --git a/rt/mqueue.h b/rt/mqueue.h index 787cc36df2..d39334ba16 100644 --- a/rt/mqueue.h +++ b/rt/mqueue.h @@ -110,8 +110,7 @@ extern int __REDIRECT (mq_timedsend, (mqd_t __mqdes, #endif /* Define some inlines helping to catch common problems. */ -#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function \ - && defined __va_arg_pack_len +#if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function # include <bits/mqueue2.h> #endif |