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authorFlorian Weimer <fweimer@redhat.com>2021-02-22 18:30:52 +0100
committerFlorian Weimer <fweimer@redhat.com>2021-02-22 18:30:52 +0100
commit541e53c9ddd9ef543cc45b66c7597e63fa665414 (patch)
tree40955e1e70744d89b559dc48682ef7c5176a0ac6 /sysdeps
parentf720ce680eb970be2166e4809963d4cd30de182a (diff)
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nptl: Move futex-internal.c into main nptl directory
Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/nptl/Makefile3
-rw-r--r--sysdeps/nptl/futex-internal.c126
2 files changed, 1 insertions, 128 deletions
diff --git a/sysdeps/nptl/Makefile b/sysdeps/nptl/Makefile
index bdba75d85f..adcced422b 100644
--- a/sysdeps/nptl/Makefile
+++ b/sysdeps/nptl/Makefile
@@ -17,8 +17,7 @@
 # <https://www.gnu.org/licenses/>.
 
 ifeq ($(subdir),nptl)
-libpthread-sysdep_routines += errno-loc futex-internal
-CFLAGS-futex-internal.c += -fexceptions -fasynchronous-unwind-tables
+libpthread-sysdep_routines += errno-loc
 endif
 
 ifeq ($(subdir),rt)
diff --git a/sysdeps/nptl/futex-internal.c b/sysdeps/nptl/futex-internal.c
deleted file mode 100644
index 89b4ba76e9..0000000000
--- a/sysdeps/nptl/futex-internal.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/* futex helper functions for glibc-internal use.
-   Copyright (C) 2020-2021 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <https://www.gnu.org/licenses/>.  */
-
-#include <errno.h>
-#include <sysdep.h>
-#include <time.h>
-#include <futex-internal.h>
-#include <kernel-features.h>
-
-#ifndef __ASSUME_TIME64_SYSCALLS
-static int
-__futex_abstimed_wait_common32 (unsigned int* futex_word,
-                                unsigned int expected, int op,
-                                const struct __timespec64* abstime,
-                                int private, bool cancel)
-{
-  struct timespec ts32, *pts32 = NULL;
-  if (abstime != NULL)
-    {
-      if (! in_time_t_range (abstime->tv_sec))
-	return -EOVERFLOW;
-
-      ts32 = valid_timespec64_to_timespec (*abstime);
-      pts32 = &ts32;
-    }
-
-  if (cancel)
-    return INTERNAL_SYSCALL_CANCEL (futex, futex_word, op, expected,
-                                    pts32, NULL /* Unused.  */,
-                                    FUTEX_BITSET_MATCH_ANY);
-  else
-    return INTERNAL_SYSCALL_CALL (futex, futex_word, op, expected,
-                                  pts32, NULL /* Unused.  */,
-                                  FUTEX_BITSET_MATCH_ANY);
-}
-#endif /* ! __ASSUME_TIME64_SYSCALLS */
-
-static int
-__futex_abstimed_wait_common64 (unsigned int* futex_word,
-                                unsigned int expected, clockid_t clockid,
-                                const struct __timespec64* abstime,
-                                int private, bool cancel)
-{
-  unsigned int clockbit;
-  int err;
-
-  /* Work around the fact that the kernel rejects negative timeout values
-     despite them being valid.  */
-  if (__glibc_unlikely ((abstime != NULL) && (abstime->tv_sec < 0)))
-    return ETIMEDOUT;
-
-  if (! lll_futex_supported_clockid (clockid))
-    return EINVAL;
-
-  clockbit = (clockid == CLOCK_REALTIME) ? FUTEX_CLOCK_REALTIME : 0;
-  int op = __lll_private_flag (FUTEX_WAIT_BITSET | clockbit, private);
-
-  if (cancel)
-    err = INTERNAL_SYSCALL_CANCEL (futex_time64, futex_word, op, expected,
-                                   abstime, NULL /* Unused.  */,
-                                   FUTEX_BITSET_MATCH_ANY);
-  else
-    err = INTERNAL_SYSCALL_CALL (futex_time64, futex_word, op, expected,
-                                 abstime, NULL /* Ununsed.  */,
-                                 FUTEX_BITSET_MATCH_ANY);
-#ifndef __ASSUME_TIME64_SYSCALLS
-  if (err == -ENOSYS)
-    err = __futex_abstimed_wait_common32 (futex_word, expected, op, abstime,
-                                          private, cancel);
-#endif
-
-  switch (err)
-    {
-    case 0:
-    case -EAGAIN:
-    case -EINTR:
-    case -ETIMEDOUT:
-    case -EINVAL:
-    case -EOVERFLOW:  /* Passed absolute timeout uses 64 bit time_t type, but
-                         underlying kernel does not support 64 bit time_t futex
-                         syscalls.  */
-      return -err;
-
-    case -EFAULT: /* Must have been caused by a glibc or application bug.  */
-    case -ENOSYS: /* Must have been caused by a glibc bug.  */
-    /* No other errors are documented at this time.  */
-    default:
-      futex_fatal_error ();
-    }
-}
-
-int
-__futex_abstimed_wait64 (unsigned int* futex_word, unsigned int expected,
-                         clockid_t clockid,
-                         const struct __timespec64* abstime, int private)
-{
-  return __futex_abstimed_wait_common64 (futex_word, expected, clockid,
-                                         abstime, private, false);
-}
-libpthread_hidden_def (__futex_abstimed_wait64)
-
-int
-__futex_abstimed_wait_cancelable64 (unsigned int* futex_word,
-                                    unsigned int expected, clockid_t clockid,
-                                    const struct __timespec64* abstime,
-                                    int private)
-{
-  return __futex_abstimed_wait_common64 (futex_word, expected, clockid,
-                                         abstime, private, true);
-}
-libpthread_hidden_def (__futex_abstimed_wait_cancelable64)