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authorUlrich Drepper <drepper@redhat.com>2006-02-08 18:25:19 +0000
committerUlrich Drepper <drepper@redhat.com>2006-02-08 18:25:19 +0000
commite32f487e1cb6e7ed6eb494afde072e1405d5a5fb (patch)
tree7c87768f0f8941e0335f0c2f207fd2db7ff0ff9e /sysdeps
parentb576fca12abea4bb0b5af097ce4dd3ff7717d821 (diff)
* sysdeps/unix/sysv/linux/bits/sched.h: Declare unshare.
* sysdeps/unix/sysv/linux/Versions [libc, GLIBC_2.4]: Export unshare. * sysdeps/unix/sysv/linux/syscalls.list: Add unshare syscall. * sysdeps/unix/Makefile ($(objpfx)stub-syscalls.c): Add some preprocessor magic so that the compiler won't see the prototypes for the functions we are defining as stubs.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/unix/Makefile10
-rw-r--r--sysdeps/unix/sysv/linux/Versions2
-rw-r--r--sysdeps/unix/sysv/linux/bits/sched.h5
-rw-r--r--sysdeps/unix/sysv/linux/syscalls.list1
4 files changed, 15 insertions, 3 deletions
diff --git a/sysdeps/unix/Makefile b/sysdeps/unix/Makefile
index 5b326e032c..c1da42f953 100644
--- a/sysdeps/unix/Makefile
+++ b/sysdeps/unix/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1991,1992,1993,1994,1995,1996,1997,1998,1999,2003
+# Copyright (C) 1991,1992,1993,1994,1995,1996,1997,1998,1999,2003, 2006
# Free Software Foundation, Inc.
# This file is part of the GNU C Library.
@@ -294,7 +294,13 @@ sysdep_routines += stub-syscalls
$(objpfx)stub-syscalls.c: $(common-objpfx)sysd-syscalls \
$(..)sysdeps/unix/Makefile
$(make-target-directory)
- (echo '#include <errno.h>'; \
+ (for call in $(unix-stub-syscalls); do \
+ echo "#define $$call RENAMED_$$call"; \
+ done; \
+ echo '#include <errno.h>'; \
+ for call in $(unix-stub-syscalls); do \
+ echo "#undef $$call"; \
+ done; \
echo 'long int _no_syscall (void)'; \
echo '{ __set_errno (ENOSYS); return -1L; }'; \
for call in $(unix-stub-syscalls); do \
diff --git a/sysdeps/unix/sysv/linux/Versions b/sysdeps/unix/sysv/linux/Versions
index 436573a428..fed28f2db0 100644
--- a/sysdeps/unix/sysv/linux/Versions
+++ b/sysdeps/unix/sysv/linux/Versions
@@ -118,6 +118,8 @@ libc {
GLIBC_2.4 {
inotify_init; inotify_add_watch; inotify_rm_watch;
+ unshare;
+
#errlist-compat 132
_sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
}
diff --git a/sysdeps/unix/sysv/linux/bits/sched.h b/sysdeps/unix/sysv/linux/bits/sched.h
index 2ca7df0d13..4a95a263f7 100644
--- a/sysdeps/unix/sysv/linux/bits/sched.h
+++ b/sysdeps/unix/sysv/linux/bits/sched.h
@@ -69,10 +69,13 @@ struct sched_param
__BEGIN_DECLS
-/* Clone current process. */
#ifdef __USE_MISC
+/* Clone current process. */
extern int clone (int (*__fn) (void *__arg), void *__child_stack,
int __flags, void *__arg, ...) __THROW;
+
+/* Unshare the specified resources. */
+extern int unshare (int __flags) __THROW;
#endif
__END_DECLS
diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list
index 88e1f5a294..053d7e0ccf 100644
--- a/sysdeps/unix/sysv/linux/syscalls.list
+++ b/sysdeps/unix/sysv/linux/syscalls.list
@@ -73,6 +73,7 @@ sigaltstack - sigaltstack i:PP __sigaltstack sigaltstack
sysinfo EXTRA sysinfo i:p sysinfo
swapon - swapon i:si __swapon swapon
swapoff - swapoff i:s __swapoff swapoff
+unshare EXTRA unshare i:i unshare
uselib EXTRA uselib i:s uselib
wait4 - wait4 i:iWiP __wait4 wait4