+2003-01-14 Guido Guenther <agx@sigxcpu.org>
+
+ * sysdeps/unix/sysv/linux/mips/sysdep.h (INTERNAL_SYSCALL,
+ INTERNAL_SYSCALL_DECL, INTERNAL_SYSCALL_ERRNO,
+ INTERNAL_SYSCALL_ERROR_P, INLINE_SYSCALL): Define.
+
+2003-01-14 Steven Munroe <sjmunroe@us.ibm.com>
+
+ * sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h
+ (INTERNAL_SYSCALL): Make use of ERR parameter.
+ (INTERNAL_SYSCALL_DECL, INTERNAL_SYSCALL_ERRNO,
+ INTERNAL_SYSCALL_ERROR_P): Adjust accordingly.
+ (INLINE_SYSCALL): Make use of INTERNAL_SYSCALL.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S: New file.
+
2003-01-14 Ulrich Drepper <drepper@redhat.com>
* sunrpc/pm_getport.c (pmap_getport): Open TCP socket if protocol
source pointer before dereferencing.
(__STRING_SMALLL_GET32): Likewise.
(__memset_gc): Add missing parenthesis around macro arguments.
- Patch by Denis Zaitsev<zzz@cd-club.ru>.
+ Patch by Denis Zaitsev <zzz@cd-club.ru>.
* sysdeps/i386/i486/bits/string.h (__strspn_cg): Tell the compiler
- that %eax is modified. Reported by Denis Zaitsev<zzz@cd-club.ru>.
+ that %eax is modified. Reported by Denis Zaitsev <zzz@cd-club.ru>.
2003-01-14 Jakub Jelinek <jakub@redhat.com>
+2003-01-15 Jakub Jelinek <jakub@redhat.com>
+
+ * sysdeps/pthread/bits/libc-lock.h (__libc_lock_init,
+ __libc_lock_init_recursive): Initialize fields directly.
+
+2003-01-15 Jakub Jelinek <jakub@redhat.com>
+
+ * sysdeps/unix/sysv/linux/alpha/vfork.S (__vfork): Allow
+ __fork to be far away from __vfork ifndef SHARED.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc32/vfork.S (__vfork):
+ Likewise.
+ * sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S (__vfork): Likewise.
+ * sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S (__vfork): Likewise.
+ Add a missing instruction.
+ * sysdeps/unix/sysv/linux/arm/vfork.S (__vfork): Conditionally
+ branch to __fork even if __NR_vfork is not defined.
+
+2003-01-14 Ulrich Drepper <drepper@redhat.com>
+
+ * tst-cancel-wrappers.sh: Allow .__*_asynccancel functions names
+ as well.
+
+2003-01-14 Steven Munroe <sjmunroe@us.ibm.com>
+
+ * sysdeps/unix/sysv/linux/powerpc/powerpc64/vfork.S: New file.
+
2003-01-14 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/ia64/vfork.S (JUMPTARGET): Remove.
/* Initialize the named lock variable, leaving it in a consistent, unlocked
state. */
+#if defined _LIBC && !defined NOT_IN_libc && defined SHARED
+#define __libc_lock_init(NAME) \
+ ({ \
+ (NAME).__m_count = 0; \
+ (NAME).__m_owner = NULL; \
+ (NAME).__m_kind = PTHREAD_MUTEX_TIMED_NP; \
+ (NAME).__m_lock.__status = 0; \
+ (NAME).__m_lock.__spinlock = __LT_SPINLOCK_INIT; \
+ 0; })
+#else
#define __libc_lock_init(NAME) \
(__libc_maybe_call2 (pthread_mutex_init, (&(NAME), NULL), 0))
+#endif
#define __libc_rwlock_init(NAME) \
(__libc_maybe_call (__pthread_rwlock_init, (&(NAME), NULL), 0));
/* Same as last but this time we initialize a recursive mutex. */
+#if defined _LIBC && !defined NOT_IN_libc && defined SHARED
+#define __libc_lock_init_recursive(NAME) \
+ ({ \
+ (NAME).mutex.__m_count = 0; \
+ (NAME).mutex.__m_owner = NULL; \
+ (NAME).mutex.__m_kind = PTHREAD_MUTEX_RECURSIVE_NP; \
+ (NAME).mutex.__m_lock.__status = 0; \
+ (NAME).mutex.__m_lock.__spinlock = __LT_SPINLOCK_INIT; \
+ 0; })
+#else
#define __libc_lock_init_recursive(NAME) \
do { \
if (__pthread_mutex_init != NULL) \
__pthread_mutexattr_destroy (&__attr); \
} \
} while (0);
+#endif
#define __rtld_lock_init_recursive(NAME) \
__libc_lock_init_recursive (NAME)
.prologue 1
PSEUDO_PROF
SINGLE_THREAD_P(t0)
+#ifdef SHARED
bne t0, HIDDEN_JUMPTARGET (__fork) !samegp
+#else
+ bne t0, $hidden_fork
+#endif
lda v0, SYS_ify(vfork)
call_pal PAL_callsys
+#ifdef SHARED
bne a3, __syscall_error !samegp
+#else
+ bne a3, $syscall_error
+#endif
ret
+#ifndef SHARED
+$hidden_fork:
+ jmp zero, HIDDEN_JUMPTARGET (__fork)
+$syscall_error:
+ jmp zero, __syscall_error
+#endif
PSEUDO_END(__vfork)
libc_hidden_def (__vfork)
ENTRY (__vfork)
-#ifdef __NR_vfork
SINGLE_THREAD_P
bne HIDDEN_JUMPTARGET (__fork)
+#ifdef __NR_vfork
swi __NR_vfork
cmn a1, #4096
RETINSTR(movcc, pc, lr)
#ifdef __NR_vfork
SINGLE_THREAD_P
+# ifdef SHARED
bne- HIDDEN_JUMPTARGET(__fork)
+# else
+ bne- .Lhidden_fork
+# endif
DO_CALL (SYS_ify (vfork));
bnslr+
/* Check if vfork syscall is known at all. */
cmpwi r3,ENOSYS
+# ifdef SHARED
bne JUMPTARGET(__syscall_error)
+# else
+ bne .Lsyscall_error
+# endif
# endif
#endif
PSEUDO_RET
#endif
+# ifndef SHARED
+.Lhidden_fork:
+ b HIDDEN_JUMPTARGET(__fork)
+.Lsyscall_error:
+ b JUMPTARGET(__syscall_error)
+# endif
+
PSEUDO_END (__vfork)
libc_hidden_def (__vfork)
--- /dev/null
+/* Copyright (C) 2003 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 <sysdep-cancel.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+#include <kernel-features.h>
+
+/* Clone the calling process, but without copying the whole address space.
+ The calling process is suspended until the new process exits or is
+ replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
+ and the process ID of the new process to the old process. */
+
+ENTRY (__vfork)
+
+#ifdef __NR_vfork
+
+ SINGLE_THREAD_P
+ bne- HIDDEN_JUMPTARGET(__fork)
+
+ DO_CALL (SYS_ify (vfork));
+
+# ifdef __ASSUME_VFORK_SYSCALL
+ PSEUDO_RET
+# else
+ bnslr+
+ /* Check if vfork syscall is known at all. */
+ cmpdi r3,ENOSYS
+ bne JUMPTARGET(__syscall_error)
+
+# endif
+#endif
+
+#ifndef __ASSUME_VFORK_SYSCALL
+ /* If we don't have vfork, fork is close enough. */
+
+ DO_CALL (SYS_ify (fork));
+ PSEUDO_RET
+#endif
+
+PSEUDO_END (__vfork)
+libc_hidden_def (__vfork)
+
+weak_alias (__vfork, vfork)
ENTRY(__vfork)
ld [%g6 + MULTIPLE_THREADS_OFFSET], %o0
cmp %o0, 0
+#ifdef SHARED
bne HIDDEN_JUMPTARGET(__fork)
+#else
+ bne 1f
+#endif
mov __NR_vfork, %g1
ta 0x10;
bcs __syscall_error_handler
sub %o1, 1, %o1
retl
and %o0, %o1, %o0
+#ifndef SHARED
+1: mov %o7, %g1
+ call HIDDEN_JUMPTARGET(__fork)
+ mov %g1, %o7
+#endif
SYSCALL_ERROR_HANDLER
PSEUDO_END (__vfork)
libc_hidden_def (__vfork)
.text
ENTRY(__vfork)
ld [%g6 + MULTIPLE_THREADS_OFFSET], %o0
+#ifdef SHARED
+ cmp %o0, 0
bne HIDDEN_JUMPTARGET (__fork)
+#else
+ brnz,pn %o0, 1f
+#endif
mov __NR_vfork, %g1
ta 0x6d
bcs,pn %xcc, __syscall_error_handler
sub %o1, 1, %o1
retl
and %o0, %o1, %o0
+#ifndef SHARED
+1: mov %o7, %g1
+ call HIDDEN_JUMPTARGET(__fork)
+ mov %g1, %o7
+#endif
SYSCALL_ERROR_HANDLER
PSEUDO_END (__vfork)
libc_hidden_def (__vfork)
{
if (C[$1] && $2 ~ /^[TW]$/)
seen=$1
- else if ($1 ~ /^__(libc|pthread)_enable_asynccancel$/ && $2 == "U")
+ else if ($1 ~ /^([.]|)__(libc|pthread)_enable_asynccancel$/ && $2 == "U")
seen_enable=1
- else if ($1 ~ /^__(libc|pthread)_disable_asynccancel$/ && $2 == "U")
+ else if ($1 ~ /^([.]|)__(libc|pthread)_disable_asynccancel$/ && $2 == "U")
seen_disable=1
}
END {
+2003-01-14 Ulrich Drepper <drepper@redhat.com>
+
+ * Makefile (CFLAGS-pthread_self.os): Define this, not
+ CFLAGS-pthread_self.c.
+
2003-01-13 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S: Don't export
# stack frame is more work than the actual operation. Disable the
# frame creation entirely. This will help applications which call the
# function frequently to get a thread-specific handle.
-CFLAGS-pthread_self.c += -fomit-frame-pointer
+CFLAGS-pthread_self.os += -fomit-frame-pointer
CFLAGS-tst-unload.c += -DPREFIX=\"$(objpfx)\"
# define SYS_ify(syscall_name) __NR_/**/syscall_name
#endif
+#ifndef __ASSEMBLER__
+
+/* Define a macro which expands into the inline wrapper code for a system
+ call. */
+#undef INLINE_SYSCALL
+#define INLINE_SYSCALL(name, nr, args...) \
+ ({ INTERNAL_SYSCALL_DECL(err); \
+ long result_var = INTERNAL_SYSCALL (name, err, nr, args); \
+ if ( INTERNAL_SYSCALL_ERROR_P (result_var, err) ) \
+ { \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (result_var, err)); \
+ result_var = -1L; \
+ } \
+ result_var; })
+
+#undef INTERNAL_SYSCALL_DECL
+#define INTERNAL_SYSCALL_DECL(err) long err
+
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val, err) ((long) (err))
+
+#undef INTERNAL_SYSCALL_ERRNO
+#define INTERNAL_SYSCALL_ERRNO(val, err) (val)
+
+#undef INTERNAL_SYSCALL
+#define INTERNAL_SYSCALL(name, err, nr, args...) internal_syscall##nr(name, err, args)
+
+#define internal_syscall0(name, err, dummy...) \
+({ \
+ long _sys_result; \
+ \
+ { \
+ register long __v0 asm("$2"); \
+ register long __a3 asm("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ "li\t$2, %2\t\t\t# " #name "\n\t" \
+ "syscall\n\t" \
+ ".set reorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : "i" (SYS_ify(name)) \
+ : __SYSCALL_CLOBBERS); \
+ err = __a3; \
+ _sys_result = __v0; \
+ } \
+ _sys_result; \
+})
+
+#define internal_syscall1(name, err, arg1) \
+({ \
+ long _sys_result; \
+ \
+ { \
+ register long __v0 asm("$2"); \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a3 asm("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ "li\t$2, %3\t\t\t# " #name "\n\t" \
+ "syscall\n\t" \
+ ".set reorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : "r" (__a0), "i" (SYS_ify(name)) \
+ : __SYSCALL_CLOBBERS); \
+ err = __a3; \
+ _sys_result = __v0; \
+ } \
+ _sys_result; \
+})
+
+#define internal_syscall2(name, err, arg1, arg2) \
+({ \
+ long _sys_result; \
+ \
+ { \
+ register long __v0 asm("$2"); \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a3 asm("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ "li\t$2, %4\t\t\t# " #name "\n\t" \
+ "syscall\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : "r" (__a0), "r" (__a1), "i" (SYS_ify(name)) \
+ : __SYSCALL_CLOBBERS); \
+ err = __a3; \
+ _sys_result = __v0; \
+ } \
+ _sys_result; \
+})
+
+#define internal_syscall3(name, err, arg1, arg2, arg3) \
+({ \
+ long _sys_result; \
+ \
+ { \
+ register long __v0 asm("$2"); \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a2 asm("$6") = (long) arg3; \
+ register long __a3 asm("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ "li\t$2, %5\t\t\t# " #name "\n\t" \
+ "syscall\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)) \
+ : __SYSCALL_CLOBBERS); \
+ err = __a3; \
+ _sys_result = __v0; \
+ } \
+ _sys_result; \
+})
+
+#define internal_syscall4(name, err, arg1, arg2, arg3, arg4) \
+({ \
+ long _sys_result; \
+ \
+ { \
+ register long __v0 asm("$2"); \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a2 asm("$6") = (long) arg3; \
+ register long __a3 asm("$7") = (long) arg4; \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ "li\t$2, %5\t\t\t# " #name "\n\t" \
+ "syscall\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "+r" (__a3) \
+ : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)) \
+ : __SYSCALL_CLOBBERS); \
+ err = __a3; \
+ _sys_result = __v0; \
+ } \
+ _sys_result; \
+})
+
+#define internal_syscall5(name, err, arg1, arg2, arg3, arg4, arg5) \
+({ \
+ long _sys_result; \
+ \
+ { \
+ register long __v0 asm("$2"); \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a2 asm("$6") = (long) arg3; \
+ register long __a3 asm("$7") = (long) arg4; \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ "lw\t$2, %6\n\t" \
+ "subu\t$29, 32\n\t" \
+ "sw\t$2, 16($29)\n\t" \
+ "li\t$2, %5\t\t\t# " #name "\n\t" \
+ "syscall\n\t" \
+ "addiu\t$29, 32\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "+r" (__a3) \
+ : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \
+ "m" ((long)arg5) \
+ : __SYSCALL_CLOBBERS); \
+ err = __a3; \
+ _sys_result = __v0; \
+ } \
+ _sys_result; \
+})
+
+#define internal_syscall6(name, err, arg1, arg2, arg3, arg4, arg5, arg6)\
+({ \
+ long _sys_result; \
+ \
+ { \
+ register long __v0 asm("$2"); \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a2 asm("$6") = (long) arg3; \
+ register long __a3 asm("$7") = (long) arg4; \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ "lw\t$2, %6\n\t" \
+ "lw\t$8, %7\n\t" \
+ "subu\t$29, 32\n\t" \
+ "sw\t$2, 16($29)\n\t" \
+ "sw\t$8, 20($29)\n\t" \
+ "li\t$2, %5\t\t\t# " #name "\n\t" \
+ "syscall\n\t" \
+ "addiu\t$29, 32\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "+r" (__a3) \
+ : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \
+ "m" ((long)arg5), "m" ((long)arg6) \
+ : __SYSCALL_CLOBBERS); \
+ err = __a3; \
+ _sys_result = __v0; \
+ } \
+ _sys_result; \
+})
+
+#define internal_syscall7(name, err, arg1, arg2, arg3, arg4, arg5, arg6, arg7)\
+({ \
+ long _sys_result; \
+ \
+ { \
+ register long __v0 asm("$2"); \
+ register long __a0 asm("$4") = (long) arg1; \
+ register long __a1 asm("$5") = (long) arg2; \
+ register long __a2 asm("$6") = (long) arg3; \
+ register long __a3 asm("$7") = (long) arg4; \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ "lw\t$2, %6\n\t" \
+ "lw\t$8, %7\n\t" \
+ "lw\t$9, %8\n\t" \
+ "subu\t$29, 32\n\t" \
+ "sw\t$2, 16($29)\n\t" \
+ "sw\t$8, 20($29)\n\t" \
+ "sw\t$9, 24($29)\n\t" \
+ "li\t$2, %5\t\t\t# " #name "\n\t" \
+ "syscall\n\t" \
+ "addiu\t$29, 32\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "+r" (__a3) \
+ : "r" (__a0), "r" (__a1), "r" (__a2), "i" (SYS_ify(name)), \
+ "m" ((long)arg5), "m" ((long)arg6), "m" ((long)arg7) \
+ : __SYSCALL_CLOBBERS); \
+ err = __a3; \
+ _sys_result = __v0; \
+ } \
+ _sys_result; \
+})
+
+#define __SYSCALL_CLOBBERS "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13", "$14", "$15", "$24", "$25"
+
+#endif /* __ASSEMBLER__ */
+
#endif /* linux/mips/sysdep.h */
behave like function calls as far as register saving. */
#define INLINE_SYSCALL(name, nr, args...) \
({ \
- register long r0 __asm__ ("r0"); \
- register long r3 __asm__ ("r3"); \
- register long r4 __asm__ ("r4"); \
- register long r5 __asm__ ("r5"); \
- register long r6 __asm__ ("r6"); \
- register long r7 __asm__ ("r7"); \
- register long r8 __asm__ ("r8"); \
- long ret, err; \
- LOADARGS_##nr(name, args); \
- __asm __volatile ("sc\n\t" \
- "mfcr %7\n\t" \
- : "=r" (r0), "=r" (r3), "=r" (r4), \
- "=r" (r5), "=r" (r6), "=r" (r7), \
- "=r" (r8), "=r" (err) \
- : ASM_INPUT_##nr \
- : "r9", "r10", "r11", "r12", \
- "fr0", "fr1", "fr2", "fr3", \
- "fr4", "fr5", "fr6", "fr7", \
- "fr8", "fr9", "fr10", "fr11", \
- "fr12", "fr13", \
- "ctr", "lr", \
- "cr0", "cr1", "cr5", "cr6", "cr7", \
- "memory"); \
- ret = r3; \
- if (__builtin_expect ((err & (1 << 28)), 0)) \
- { \
- __set_errno (ret); \
- ret = -1L; \
- } \
- ret; \
+ INTERNAL_SYSCALL_DECL (sc_err); \
+ long sc_ret = INTERNAL_SYSCALL (name, sc_err, nr, args); \
+ if (INTERNAL_SYSCALL_ERROR_P (sc_ret, sc_err)) \
+ { \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (sc_ret, sc_err)); \
+ sc_ret = -1L; \
+ } \
+ sc_ret; \
})
/* Define a macro which expands inline into the wrapper code for a system
the negation of the return value in the kernel gets reverted. */
# undef INTERNAL_SYSCALL
-# define INTERNAL_SYSCALL(name, nr, args...) \
+# define INTERNAL_SYSCALL(name, err, nr, args...) \
({ \
register long r0 __asm__ ("r0"); \
register long r3 __asm__ ("r3"); \
LOADARGS_##nr(name, args); \
__asm__ __volatile__ \
("sc\n\t" \
- "bns+ 0f\n\t" \
- "neg %1,%1\n" \
+ "mfcr %0\n\t" \
"0:" \
: "=&r" (r0), \
"=&r" (r3), "=&r" (r4), "=&r" (r5), \
: ASM_INPUT_##nr \
: "r9", "r10", "r11", "r12", \
"cr0", "ctr", "memory"); \
- (int) r3; \
+ err = r0; \
+ (int) r3; \
})
+
+# undef INTERNAL_SYSCALL_DECL
+# define INTERNAL_SYSCALL_DECL(err) long err
# undef INTERNAL_SYSCALL_ERROR_P
-# define INTERNAL_SYSCALL_ERROR_P(val) ((unsigned long) (val) >= 0xfffffffffffff001u)
-
+# define INTERNAL_SYSCALL_ERROR_P(val, err) \
+ (__builtin_expect (err & (1 << 28), 0))
+
# undef INTERNAL_SYSCALL_ERRNO
-# define INTERNAL_SYSCALL_ERRNO(val) (-(val))
+# define INTERNAL_SYSCALL_ERRNO(val, err) (val)
#define LOADARGS_0(name, dummy) \
r0 = __NR_##name
--- /dev/null
+/* Copyright (C) 2003 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 <sysdep.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+#include <kernel-features.h>
+
+/* Clone the calling process, but without copying the whole address space.
+ The calling process is suspended until the new process exits or is
+ replaced by a call to `execve'. Return -1 for errors, 0 to the new process,
+ and the process ID of the new process to the old process. */
+
+ENTRY (__vfork)
+
+#ifdef __NR_vfork
+
+ DO_CALL (SYS_ify (vfork))
+
+# ifdef __ASSUME_VFORK_SYSCALL
+ PSEUDO_RET
+# else
+ bnslr+
+ /* Check if vfork syscall is known at all. */
+ cmpdi r3,ENOSYS
+ bne JUMPTARGET(__syscall_error)
+
+# endif
+#endif
+
+#ifndef __ASSUME_VFORK_SYSCALL
+ /* If we don't have vfork, fork is close enough. */
+
+ DO_CALL (SYS_ify (fork))
+ PSEUDO_RET
+#endif
+
+PSEUDO_END (__vfork)
+libc_hidden_def (__vfork)
+
+weak_alias (__vfork, vfork)
projects / platform / upstream / linaro-glibc.git / commitdiff