summaryrefslogtreecommitdiff
path: root/sysdeps/unix/sysv/linux
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/unix/sysv/linux')
-rw-r--r--sysdeps/unix/sysv/linux/dl-osinfo.h1
-rw-r--r--sysdeps/unix/sysv/linux/dl-vdso.c1
-rw-r--r--sysdeps/unix/sysv/linux/dl-vdso.h9
-rw-r--r--sysdeps/unix/sysv/linux/kernel-features.h50
-rw-r--r--sysdeps/unix/sysv/linux/ppoll.c4
-rw-r--r--sysdeps/unix/sysv/linux/pselect.c4
6 files changed, 46 insertions, 23 deletions
diff --git a/sysdeps/unix/sysv/linux/dl-osinfo.h b/sysdeps/unix/sysv/linux/dl-osinfo.h
index 203c828b21..e3c605e4c7 100644
--- a/sysdeps/unix/sysv/linux/dl-osinfo.h
+++ b/sysdeps/unix/sysv/linux/dl-osinfo.h
@@ -71,6 +71,7 @@ _dl_discover_osversion (void)
#define ROUND(len) (((len) + sizeof note->n_type - 1) & -sizeof note->n_type)
note = ((const void *) (note + 1)
+ ROUND (note->n_namesz) + ROUND (note->n_descsz));
+#undef ROUND
}
}
}
diff --git a/sysdeps/unix/sysv/linux/dl-vdso.c b/sysdeps/unix/sysv/linux/dl-vdso.c
index f12b4c37fd..28d4bb1d42 100644
--- a/sysdeps/unix/sysv/linux/dl-vdso.c
+++ b/sysdeps/unix/sysv/linux/dl-vdso.c
@@ -18,7 +18,6 @@
02111-1307 USA. */
#include "config.h"
-#include <dl-hash.h>
#include <ldsodefs.h>
diff --git a/sysdeps/unix/sysv/linux/dl-vdso.h b/sysdeps/unix/sysv/linux/dl-vdso.h
index 0a76dbe6f3..7e433e03ab 100644
--- a/sysdeps/unix/sysv/linux/dl-vdso.h
+++ b/sysdeps/unix/sysv/linux/dl-vdso.h
@@ -21,9 +21,14 @@
#define _DL_VDSO_H 1
#include <assert.h>
-#include <dl-hash.h>
#include <ldsodefs.h>
+#ifdef NDEBUG
+# define CHECK_HASH(var) do {} while (0)
+#else
+# include <dl-hash.h>
+# define CHECK_HASH(var) assert (var.hash == _dl_elf_hash (var.name))
+#endif
/* Create version number record for lookup. */
#define PREPARE_VERSION(var, vname, vhash) \
@@ -31,7 +36,7 @@
var.name = vname; \
var.hidden = 1; \
var.hash = vhash; \
- assert (var.hash == _dl_elf_hash (vname)); \
+ CHECK_HASH (var); \
/* We don't have a specific file where the symbol can be found. */ \
var.filename = NULL
diff --git a/sysdeps/unix/sysv/linux/kernel-features.h b/sysdeps/unix/sysv/linux/kernel-features.h
index f8116d8885..aab3df348e 100644
--- a/sysdeps/unix/sysv/linux/kernel-features.h
+++ b/sysdeps/unix/sysv/linux/kernel-features.h
@@ -428,29 +428,37 @@
# define __ASSUME_TMPFS_NAME 1
#endif
-/* pselect was introduced just after 2.6.16-rc1. Due to the way the
- kernel versions are advertised we can only rely on 2.6.17 to have
- the code. */
-#if __LINUX_KERNEL_VERSION >= 0x020611 && !defined __x86_64__
+/* pselect/ppoll were introduced just after 2.6.16-rc1. Due to the way
+ the kernel versions are advertised we can only rely on 2.6.17 to have
+ the code. On x86_64 and SH this appeared first in 2.6.19-rc1,
+ on ia64 in 2.6.22-rc1 and on alpha just after 2.6.22-rc1. */
+#if __LINUX_KERNEL_VERSION >= 0x020611 \
+ && ((!defined __x86_64__ && !defined __sh__ && !defined __ia64__ \
+ && !defined __alpha__) \
+ || (__LINUX_KERNEL_VERSION >= 0x020613 \
+ && (defined __x86_64__ || defined __sh__)) \
+ || (__LINUX_KERNEL_VERSION >= 0x020616 && defined __ia64__) \
+ || (__LINUX_KERNEL_VERSION >= 0x020617 && defined __alpha__))
# define __ASSUME_PSELECT 1
-#endif
-
-/* ppoll was introduced just after 2.6.16-rc1. Due to the way the
- kernel versions are advertised we can only rely on 2.6.17 to have
- the code. */
-#if __LINUX_KERNEL_VERSION >= 0x020611 && !defined __x86_64__
-# define __ASSUME_PPOLL 1
+# define __ASSUME_PPOLL 1
#endif
/* The *at syscalls were introduced just after 2.6.16-rc1. Due to the way the
kernel versions are advertised we can only rely on 2.6.17 to have
- the code. */
-#if __LINUX_KERNEL_VERSION >= 0x020611
+ the code. On PPC they were introduced in 2.6.17-rc1, on SH in 2.6.19-rc1
+ and on Alpha just after 2.6.22-rc1. */
+#if __LINUX_KERNEL_VERSION >= 0x020611 \
+ && ((!defined __sh__ && !defined __alpha__) \
+ || (__LINUX_KERNEL_VERSION >= 0x020613 && defined __sh__) \
+ || (__LINUX_KERNEL_VERSION >= 0x020617 && defined __alpha__))
# define __ASSUME_ATFCTS 1
#endif
/* Support for inter-process robust mutexes was added in 2.6.17. */
-#if __LINUX_KERNEL_VERSION >= 0x020611
+#if __LINUX_KERNEL_VERSION >= 0x020611 \
+ && ((!defined __sh__ && !defined __alpha__) \
+ || (__LINUX_KERNEL_VERSION >= 0x020613 && defined __sh__) \
+ || (__LINUX_KERNEL_VERSION >= 0x020617 && defined __alpha__))
# define __ASSUME_SET_ROBUST_LIST 1
#endif
@@ -459,8 +467,11 @@
# define __ASSUME_FUTEX_LOCK_PI 1
#endif
-/* Support for utimensat syscall was added in 2.6.22. */
-#if __LINUX_KERNEL_VERSION >= 0x020616
+/* Support for utimensat syscall was added in 2.6.22, on alpha and s390
+ only after 2.6.22-rc1. */
+#if __LINUX_KERNEL_VERSION >= 0x020616 \
+ && ((!defined __sh__ && !defined __alpha__) \
+ || __LINUX_KERNEL_VERSION >= 0x020617)
# define __ASSUME_UTIMENSAT 1
#endif
@@ -469,7 +480,10 @@
# define __ASSUME_PRIVATE_FUTEX 1
#endif
-/* Support for fallocate was added in 2.6.23. */
-#if __LINUX_KERNEL_VERSION >= 0x020617
+/* Support for fallocate was added in 2.6.23, on s390
+ only after 2.6.23-rc1. */
+#if __LINUX_KERNEL_VERSION >= 0x020617 \
+ && ((!defined __s390__ && !defined __alpha__) \
+ || (__LINUX_KERNEL_VERSION >= 0x020618 && defined __s390__))
# define __ASSUME_FALLOCATE 1
#endif
diff --git a/sysdeps/unix/sysv/linux/ppoll.c b/sysdeps/unix/sysv/linux/ppoll.c
index cfc86ba806..14eb3111b9 100644
--- a/sysdeps/unix/sysv/linux/ppoll.c
+++ b/sysdeps/unix/sysv/linux/ppoll.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2006, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2006.
@@ -26,9 +26,11 @@
#ifdef __NR_ppoll
+# ifndef __ASSUME_PPOLL
static int __generic_ppoll (struct pollfd *fds, nfds_t nfds,
const struct timespec *timeout,
const sigset_t *sigmask);
+# endif
int
diff --git a/sysdeps/unix/sysv/linux/pselect.c b/sysdeps/unix/sysv/linux/pselect.c
index 0dd744f527..f39ee920cd 100644
--- a/sysdeps/unix/sysv/linux/pselect.c
+++ b/sysdeps/unix/sysv/linux/pselect.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2006 Free Software Foundation, Inc.
+/* Copyright (C) 2006, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2006.
@@ -26,10 +26,12 @@
#ifdef __NR_pselect6
+# ifndef __ASSUME_PSELECT
static int __generic_pselect (int nfds, fd_set *readfds, fd_set *writefds,
fd_set *exceptfds,
const struct timespec *timeout,
const sigset_t *sigmask);
+# endif
int