diff options
Diffstat (limited to 'nptl/sysdeps')
| -rw-r--r-- | nptl/sysdeps/pthread/pthread-functions.h | 4 | ||||
| -rw-r--r-- | nptl/sysdeps/pthread/setxid.h | 64 |
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 |