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authorFlorian Weimer <fweimer@redhat.com>2021-06-25 10:30:36 +0200
committerFlorian Weimer <fweimer@redhat.com>2021-06-25 11:55:27 +0200
commit32e750516c653bc3005aaef87124a587a7bef196 (patch)
treea90a00b58b191b7691cc2252ac4cf81b0aa50a74 /rt/aio_suspend.c
parent406fb327fb3b617d6abdd54bed2967c2a9f384c4 (diff)
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Linux: Move aio_suspend, aio_suspend64, __aio_suspend_time64 to libc
The symbols were moved using scripts/move-symbol-to-libc.py. There is a minor oddity here: This is generic code shared with Hurd, and Hurd does not have time64 support. This is why the versioned_symbol export for __aio_suspend_time64 is restricted to the PTHREAD_IN_LIBC code. Reviewed-by: Adhemerva Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'rt/aio_suspend.c')
-rw-r--r--rt/aio_suspend.c49
1 files changed, 39 insertions, 10 deletions
diff --git a/rt/aio_suspend.c b/rt/aio_suspend.c
index 6fd5b1b..29f01d1 100644
--- a/rt/aio_suspend.c
+++ b/rt/aio_suspend.c
@@ -36,6 +36,8 @@
#include <libc-lock.h>
#include <aio_misc.h>
+#include <pthreadP.h>
+#include <shlib-compat.h>
struct clparam
@@ -56,7 +58,7 @@ cleanup (void *arg)
#ifdef DONT_NEED_AIO_MISC_COND
/* Acquire the mutex. If pthread_cond_*wait is used this would
happen implicitly. */
- pthread_mutex_lock (&__aio_requests_mutex);
+ __pthread_mutex_lock (&__aio_requests_mutex);
#endif
const struct clparam *param = (const struct clparam *) arg;
@@ -88,7 +90,7 @@ cleanup (void *arg)
#endif
/* Release the mutex. */
- pthread_mutex_unlock (&__aio_requests_mutex);
+ __pthread_mutex_unlock (&__aio_requests_mutex);
}
#ifdef DONT_NEED_AIO_MISC_COND
@@ -105,7 +107,7 @@ do_aio_misc_wait (unsigned int *cntr, const struct __timespec64 *timeout)
#endif
int
-__aio_suspend_time64 (const struct aiocb *const list[], int nent,
+___aio_suspend_time64 (const struct aiocb *const list[], int nent,
const struct __timespec64 *timeout)
{
if (__glibc_unlikely (nent < 0))
@@ -125,7 +127,7 @@ __aio_suspend_time64 (const struct aiocb *const list[], int nent,
unsigned int cntr = 1;
/* Request the mutex. */
- pthread_mutex_lock (&__aio_requests_mutex);
+ __pthread_mutex_lock (&__aio_requests_mutex);
/* There is not yet a finished request. Signal the request that
we are working for it. */
@@ -184,7 +186,11 @@ __aio_suspend_time64 (const struct aiocb *const list[], int nent,
.nent = nent
};
- pthread_cleanup_push (cleanup, &clparam);
+#if PTHREAD_IN_LIBC
+ __libc_cleanup_region_start (1, cleanup, &clparam);
+#else
+ __pthread_cleanup_push (cleanup, &clparam);
+#endif
#ifdef DONT_NEED_AIO_MISC_COND
result = do_aio_misc_wait (&cntr, timeout == NULL ? NULL : &ts);
@@ -194,7 +200,11 @@ __aio_suspend_time64 (const struct aiocb *const list[], int nent,
timeout == NULL ? NULL : &ts32);
#endif
+#if PTHREAD_IN_LIBC
+ __libc_cleanup_region_end (0);
+#else
pthread_cleanup_pop (0);
+#endif
}
/* Now remove the entry in the waiting list for all requests
@@ -239,13 +249,22 @@ __aio_suspend_time64 (const struct aiocb *const list[], int nent,
}
/* Release the mutex. */
- pthread_mutex_unlock (&__aio_requests_mutex);
+ __pthread_mutex_unlock (&__aio_requests_mutex);
return result;
}
-#if __TIMESIZE != 64
-librt_hidden_def (__aio_suspend_time64)
+#if __TIMESIZE == 64
+strong_alias (___aio_suspend_time64, __aio_suspend)
+#else /* __TIMESIZE != 64 */
+# if PTHREAD_IN_LIBC
+libc_hidden_ver (___aio_suspend_time64, __aio_suspend_time64)
+/* The conditional is slightly wrong: PTHREAD_IN_LIBC is a stand-in
+ for whether time64 support is needed. */
+versioned_symbol (libc, ___aio_suspend_time64, __aio_suspend_time64, GLIBC_2_34);
+# else
+librt_hidden_ver (___aio_suspend_time64, __aio_suspend_time64)
+# endif
int
__aio_suspend (const struct aiocb *const list[], int nent,
@@ -258,6 +277,16 @@ __aio_suspend (const struct aiocb *const list[], int nent,
return __aio_suspend_time64 (list, nent, timeout != NULL ? &ts64 : NULL);
}
-#endif
+#endif /* __TIMESPEC64 != 64 */
+
+#if PTHREAD_IN_LIBC
+versioned_symbol (libc, __aio_suspend, aio_suspend, GLIBC_2_34);
+versioned_symbol (libc, __aio_suspend, aio_suspend64, GLIBC_2_34);
+# if OTHER_SHLIB_COMPAT (librt, GLIBC_2_1, GLIBC_2_34)
+compat_symbol (librt, __aio_suspend, aio_suspend, GLIBC_2_1);
+compat_symbol (librt, __aio_suspend, aio_suspend64, GLIBC_2_1);
+# endif
+#else /* !PTHREAD_IN_LIBC */
weak_alias (__aio_suspend, aio_suspend)
-weak_alias (aio_suspend, aio_suspend64)
+weak_alias (__aio_suspend, aio_suspend64)
+#endif /* !PTHREAD_IN_LIBC */