+2003-01-09 Jakub Jelinek <jakub@redhat.com>
+
+ * posix/test-vfork.c (noop): Add __attribute_noinline__.
+ * sysdeps/generic/sysdep.h (JUMPTARGET): Define if not defined.
+ * sysdeps/i386/sysdep.h (JUMPTARGET): Undefine JUMPTARGET before
+ defining it.
+ * sysdeps/powerpc/powerpc32/sysdep.h (JUMPTARGET): Likewise.
+ * sysdeps/powerpc/powerpc64/sysdep.h (JUMPTARGET): Likewise.
+ * sysdeps/s390/s390-32/sysdep.h (JUMPTARGET): Likewise.
+ * sysdeps/s390/s390-64/sysdep.h (JUMPTARGET): Likewise.
+ * sysdeps/x86_64/sysdep.h (JUMPTARGET): Likewise.
+
2003-01-09 Andreas Schwab <schwab@suse.de>
* sysdeps/m68k/fpu/libm-test-ulps: Regenerated.
+2003-01-09 Jakub Jelinek <jakub@redhat.com>
+
+ * sysdeps/unix/sysv/linux/i386/vfork.S: New file.
+ * sysdeps/unix/sysv/linux/ia64/vfork.S: New file.
+ * sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h
+ [__ASSEMBLER__] (SINGLE_THREAD_P): Remove trailing ;;.
+ * sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S: New file.
+ * sysdeps/unix/sysv/linux/sparc/sparc64/vfork.S: New file.
+ * sysdeps/unix/sysv/linux/x86_64/vfork.S: New file.
+ * sysdeps/unix/sysv/linux/alpha/vfork.S: New file.
+ * tst-popen.c: New test.
+ * Makefile (tests): Add tst-popen.
+
2003-01-06 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/sigwait.c (do_sigwait): Add
tststack $(tests-nodelete-$(have-z-nodelete)) ecmutex ex14 ex15 ex16 \
ex17 ex18 tst-cancel tst-context bug-sleep \
tst-cancel1 tst-cancel2 tst-cancel3 tst-cancel4 tst-cancel5 \
- tst-cancel6
+ tst-cancel6 tst-popen
test-srcs = tst-signal
# These tests are linked with libc before libpthread
tests-reverse += tst-cancel5
--- /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>
+
+ .globl __vfork
+ .align 4
+ .ent __vfork,0
+__LABEL(__vfork)
+ ldgp gp, 0(pv)
+ .prologue 1
+ PSEUDO_PROF
+ SINGLE_THREAD_P(t0)
+ bne t0, HIDDEN_JUMPTARGET (__fork) !samegp
+ lda v0, SYS_ify(vfork)
+ call_pal PAL_callsys
+ bne a3, __syscall_error !samegp
+ ret
+PSEUDO_END(__vfork)
+libc_hidden_def (__vfork)
+
+weak_alias (__vfork, vfork)
--- /dev/null
+/* Copyright (C) 1999, 2002, 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Andreas Schwab <schwab@gnu.org>.
+
+ 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
+ jne HIDDEN_JUMPTARGET (__fork)
+
+ /* Pop the return PC value into ECX. */
+ popl %ecx
+
+ /* Stuff the syscall number in EAX and enter into the kernel. */
+ movl $SYS_ify (vfork), %eax
+ int $0x80
+
+ /* Jump to the return PC. Don't jump directly since this
+ disturbs the branch target cache. Instead push the return
+ address back on the stack. */
+ pushl %ecx
+
+ cmpl $-4095, %eax
+ /* Branch forward if it failed. */
+# ifdef __ASSUME_VFORK_SYSCALL
+ jae SYSCALL_ERROR_LABEL
+.Lpseudo_end:
+# else
+ jae .Lerror
+# endif
+
+ ret
+
+# ifndef __ASSUME_VFORK_SYSCALL
+.Lerror:
+ /* Check if vfork syscall is known at all. */
+ cmpl $-ENOSYS, %eax
+ jne SYSCALL_ERROR_LABEL
+# endif
+#endif
+
+#ifndef __ASSUME_VFORK_SYSCALL
+ /* If we don't have vfork, fork is close enough. */
+
+ movl $SYS_ify (fork), %eax
+ int $0x80
+ cmpl $-4095, %eax
+ jae SYSCALL_ERROR_LABEL
+.Lpseudo_end:
+ ret
+#endif
+PSEUDO_END (__vfork)
+libc_hidden_def (__vfork)
+
+weak_alias (__vfork, vfork)
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
p_header.data.multiple_threads) == 0, 1)
# else
# define SINGLE_THREAD_P \
- adds r14 = MULTIPLE_THREADS_OFFSET, r13 ;; ld4 r14 = [r14] ;; cmp4.ne p6, p7 = 0, r14 ;;
+ adds r14 = MULTIPLE_THREADS_OFFSET, r13 ;; ld4 r14 = [r14] ;; cmp4.ne p6, p7 = 0, r14
# endif
#elif !defined __ASSEMBLER__
--- /dev/null
+/* Copyright (C) 2000, 2002, 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 _SIGNAL_H
+#include <bits/signum.h>
+
+#define JUMPTARGET(name) name
+
+/* The following are defined in linux/sched.h, which unfortunately */
+/* is not safe for inclusion in an assembly file. */
+#define CLONE_VM 0x00000100 /* set if VM shared between processes */
+#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to wake it up on mm_release */
+
+/* pid_t vfork(void); */
+/* Implemented as __clone_syscall(CLONE_VFORK | CLONE_VM | SIGCHLD, 0) */
+
+ENTRY(__vfork)
+ SINGLE_THREAD_P
+(p6) br.cond.spnt.few HIDDEN_JUMPTARGET (__fork);;
+ alloc r2=ar.pfs,0,0,2,0
+ mov out0=CLONE_VM+CLONE_VFORK+SIGCHLD
+ mov out1=0 /* Standard sp value. */
+ ;;
+ DO_CALL (SYS_ify (clone))
+ cmp.eq p6,p0=-1,r10
+ ;;
+(p6) br.cond.spnt.few __syscall_error
+ ret
+PSEUDO_END(__vfork)
+libc_hidden_def (__vfork)
+
+weak_alias (__vfork, vfork)
--- /dev/null
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
+
+ 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>
+
+ .text
+ENTRY(__vfork)
+ ld [%g6 + MULTIPLE_THREADS_OFFSET], %o0
+ cmp %o0, 0
+ bne HIDDEN_JUMPTARGET(__fork)
+ mov __NR_vfork, %g1
+ ta 0x10;
+ bcs __syscall_error_handler
+ nop
+ sub %o1, 1, %o1
+ retl
+ and %o0, %o1, %o0
+ SYSCALL_ERROR_HANDLER
+PSEUDO_END (__vfork)
+libc_hidden_def (__vfork)
+weak_alias (__vfork, vfork)
--- /dev/null
+/* Copyright (C) 2003 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
+
+ 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>
+
+ .text
+ENTRY(__vfork)
+ ld [%g6 + MULTIPLE_THREADS_OFFSET], %o0
+ bne HIDDEN_JUMPTARGET (__fork)
+ mov __NR_vfork, %g1
+ ta 0x6d
+ bcs,pn %xcc, __syscall_error_handler
+ nop
+ sub %o1, 1, %o1
+ retl
+ and %o0, %o1, %o0
+ SYSCALL_ERROR_HANDLER
+PSEUDO_END (__vfork)
+libc_hidden_def (__vfork)
+weak_alias (__vfork, vfork)
--- /dev/null
+/* Copyright (C) 2001, 2002, 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>
+
+/* 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)
+
+ SINGLE_THREAD_P
+ jne HIDDEN_JUMPTARGET (__fork)
+
+ /* Pop the return PC value into RDI. We need a register that
+ is preserved by the syscall and that we're allowed to destroy. */
+ popq %rdi
+
+ /* Stuff the syscall number in RAX and enter into the kernel. */
+ movl $SYS_ify (vfork), %eax
+ syscall
+
+ /* Push back the return PC. */
+ pushq %rdi
+
+ cmpl $-4095, %eax
+ jae SYSCALL_ERROR_LABEL /* Branch forward if it failed. */
+
+ /* Normal return. */
+.Lpseudo_end:
+ ret
+
+PSEUDO_END (__vfork)
+libc_hidden_def (__vfork)
+
+weak_alias (__vfork, vfork)
--- /dev/null
+#include <errno.h>
+#include <error.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static void *
+dummy (void *x)
+{
+ return NULL;
+}
+
+static char buf[sizeof "something\n"];
+
+static int
+do_test (void)
+{
+ FILE *f;
+ pthread_t p;
+
+ pthread_create (&p, NULL, dummy, NULL);
+ f = popen ("echo something", "r");
+ if (f == NULL)
+ error (EXIT_FAILURE, errno, "popen failed");
+ if (fgets (buf, sizeof (buf), f) == NULL)
+ error (EXIT_FAILURE, 0, "fgets failed");
+ if (strcmp (buf, "something\n"))
+ error (EXIT_FAILURE, 0, "read wrong data");
+ if (pclose (f))
+ error (EXIT_FAILURE, errno, "pclose returned non-zero");
+ exit (0);
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
/* Generic asm macros used on many machines.
- Copyright (C) 1991,92,93,96,98,2002 Free Software Foundation, Inc.
+ Copyright (C) 1991,92,93,96,98,2002,2003 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
#ifndef END
#define END(sym)
#endif
+
+#ifndef JUMPTARGET
+#define JUMPTARGET(sym) sym
+#endif
#endif /* __ASSEMBLER__ */
/* Assembler macros for i386.
- Copyright (C) 1991,92,93,95,96,98,2002 Free Software Foundation, Inc.
+ Copyright (C) 1991,92,93,95,96,98,2002,2003 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
#define PSEUDO_END(name) \
END (name)
+#undef JUMPTARGET
#ifdef PIC
#define JUMPTARGET(name) name##@PLT
#define SYSCALL_PIC_SETUP \
/* Assembly macros for 32-bit PowerPC.
- Copyright (C) 1999, 2001, 2002 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2001, 2002, 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
li 0,syscall; \
sc
+#undef JUMPTARGET
#ifdef PIC
#define JUMPTARGET(name) name##@plt
#else
/* Assembly macros for 64-bit PowerPC.
- Copyright (C) 2002 Free Software Foundation, Inc.
+ Copyright (C) 2002, 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
sc
/* ppc64 is always PIC */
+#undef JUMPTARGET
#define JUMPTARGET(name) DOT_LABEL(name)
#define PSEUDO(name, syscall_name, args) \
/* Assembler macros for s390.
- Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
This file is part of the GNU C Library.
#define PSEUDO_END(name) \
END (name)
+#undef JUMPTARGET
#ifdef PIC
#define JUMPTARGET(name) \
basr %r1,0 \
/* Assembler macros for 64 bit S/390.
- Copyright (C) 2001 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2003 Free Software Foundation, Inc.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
This file is part of the GNU C Library.
#define PSEUDO_END(name) \
END (name)
+#undef JUMPTARGET
#ifdef PIC
#define JUMPTARGET(name) \
brasl name##@PLT
/* Assembler macros for x86-64.
- Copyright (C) 2001, 2002 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2002, 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
#define PSEUDO_END(name) \
END (name)
+#undef JUMPTARGET
#ifdef PIC
#define JUMPTARGET(name) name##@PLT
#else
projects / external / glibc.git / commitdiff