aboutsummaryrefslogtreecommitdiff
path: root/nptl/sysdeps
diff options
context:
space:
mode:
Diffstat (limited to 'nptl/sysdeps')
-rw-r--r--nptl/sysdeps/pthread/pthread-functions.h4
-rw-r--r--nptl/sysdeps/pthread/setxid.h64
2 files changed, 66 insertions, 2 deletions
diff --git a/nptl/sysdeps/pthread/pthread-functions.h b/nptl/sysdeps/pthread/pthread-functions.h
index b1e0fcb26d..2845346128 100644
--- a/nptl/sysdeps/pthread/pthread-functions.h
+++ b/nptl/sysdeps/pthread/pthread-functions.h
@@ -24,6 +24,7 @@
#include <setjmp.h>
#include <internaltypes.h>
+struct xid_command;
/* Data type shared with libc. The libc uses it to pass on calls to
the thread functions. */
@@ -93,8 +94,7 @@ struct pthread_functions
void (*ptr___pthread_unwind) (__pthread_unwind_buf_t *)
__attribute ((noreturn)) __cleanup_fct_attribute;
void (*ptr__nptl_deallocate_tsd) (void);
-#define HAVE_PTR__NPTL_SETXID
- void (*ptr__nptl_setxid) (struct xid_command *);
+ int (*ptr__nptl_setxid) (struct xid_command *);
};
/* Variable in libc.so. */
diff --git a/nptl/sysdeps/pthread/setxid.h b/nptl/sysdeps/pthread/setxid.h
new file mode 100644
index 0000000000..8ec382f406
--- /dev/null
+++ b/nptl/sysdeps/pthread/setxid.h
@@ -0,0 +1,64 @@
+/* Copyright (C) 2004 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <pthreadP.h>
+#include <sysdep.h>
+
+#define __SETXID_1(cmd, arg1) \
+ cmd.id[0] = arg1
+#define __SETXID_2(cmd, arg1, arg2) \
+ __SETXID_1 (cmd, arg1); cmd.id[1] = arg2
+#define __SETXID_3(cmd, arg1, arg2, arg3) \
+ __SETXID_2 (cmd, arg1, arg2); cmd.id[2] = arg3
+
+#ifdef SINGLE_THREAD
+# define INLINE_SETXID_SYSCALL(name, nr, args...) \
+ INLINE_SYSCALL (name, nr, args)
+#elif defined SHARED
+# define INLINE_SETXID_SYSCALL(name, nr, args...) \
+ ({ \
+ int __result; \
+ if (__builtin_expect (__libc_pthread_functions.ptr__nptl_setxid \
+ != NULL, 0)) \
+ { \
+ struct xid_command __cmd; \
+ __cmd.syscall_no = __NR_##name; \
+ __SETXID_##nr (__cmd, args); \
+ __result = __libc_pthread_functions.ptr__nptl_setxid (&__cmd); \
+ } \
+ else \
+ __result = INLINE_SYSCALL (name, nr, args); \
+ __result; \
+ })
+#else
+# define INLINE_SETXID_SYSCALL(name, nr, args...) \
+ ({ \
+ extern __typeof (__nptl_setxid) __nptl_setxid __attribute__((weak));\
+ int __result; \
+ if (__builtin_expect (__nptl_setxid != NULL, 0)) \
+ { \
+ struct xid_command __cmd; \
+ __cmd.syscall_no = __NR_##name; \
+ __SETXID_##nr (__cmd, args); \
+ __result =__nptl_setxid (&__cmd); \
+ } \
+ else \
+ __result = INLINE_SYSCALL (name, nr, args); \
+ __result; \
+ })
+#endif