From f78deea65fee170ed353a44764d53c55cced6000 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Thu, 28 Nov 2002 00:53:12 +0000 Subject: [PATCH] Update. * sysdeps/x86_64/pthreaddef.h: New file. * sysdeps/i386/pthreaddef.h (gettid): Removed. * sysdeps/x86_64/pthread_spin_init.c: New file. * sysdeps/x86_64/pthread_spin_lock.c: New file. * sysdeps/x86_64/pthread_spin_trylock.c: New file. * sysdeps/x86_64/pthread_spin_unlock.c: New file. * sysdeps/i386/i686/pthread_spin_trylock.S (pthread_spin_trylock): Add missing lock prefix. Minute optimization. * tst-spin2.c (main): Also check successful trylock call. * sysdeps/pthread/pthread_sigmask.c (pthread_sigmask): Use correct syscall. Fix typo in case INTERNAL_SYSCALL is not used. * sysdeps/i386/pthread_spin_destroy.c: Moved to... * sysdeps/pthread/pthread_spin_destroy.c: ...here. New file. * sysdeps/i386/pthread_sigmask.c: Removed. Use the generic code. * sysdeps/pthread/pthread_sigmask.c (pthread_sigmask): Return correct value in case of an error. Add support for INTERNAL_SYSCALL. --- nptl/ChangeLog | 24 +++++++++- nptl/sysdeps/i386/i686/pthread_spin_trylock.S | 14 ++++-- nptl/sysdeps/i386/pthreaddef.h | 4 -- nptl/sysdeps/pthread/pthread_sigmask.c | 6 ++- .../{i386 => pthread}/pthread_spin_destroy.c | 0 nptl/sysdeps/x86_64/pthread_spin_init.c | 1 + nptl/sysdeps/x86_64/pthread_spin_lock.c | 1 + nptl/sysdeps/x86_64/pthread_spin_trylock.c | 1 + nptl/sysdeps/x86_64/pthread_spin_unlock.c | 1 + nptl/sysdeps/x86_64/pthreaddef.h | 45 +++++++++++++++++++ nptl/tst-spin2.c | 18 +++++++- 11 files changed, 103 insertions(+), 12 deletions(-) rename nptl/sysdeps/{i386 => pthread}/pthread_spin_destroy.c (100%) create mode 100644 nptl/sysdeps/x86_64/pthread_spin_init.c create mode 100644 nptl/sysdeps/x86_64/pthread_spin_lock.c create mode 100644 nptl/sysdeps/x86_64/pthread_spin_trylock.c create mode 100644 nptl/sysdeps/x86_64/pthread_spin_unlock.c create mode 100644 nptl/sysdeps/x86_64/pthreaddef.h diff --git a/nptl/ChangeLog b/nptl/ChangeLog index 530d6f49eb..842dedecaf 100644 --- a/nptl/ChangeLog +++ b/nptl/ChangeLog @@ -1,6 +1,28 @@ 2002-11-27 Ulrich Drepper - * sysdeps/x86_64/pthread_sigmask.c: New file. + * sysdeps/x86_64/pthreaddef.h: New file. + + * sysdeps/i386/pthreaddef.h (gettid): Removed. + + * sysdeps/x86_64/pthread_spin_init.c: New file. + * sysdeps/x86_64/pthread_spin_lock.c: New file. + * sysdeps/x86_64/pthread_spin_trylock.c: New file. + * sysdeps/x86_64/pthread_spin_unlock.c: New file. + + * sysdeps/i386/i686/pthread_spin_trylock.S (pthread_spin_trylock): + Add missing lock prefix. Minute optimization. + + * tst-spin2.c (main): Also check successful trylock call. + + * sysdeps/pthread/pthread_sigmask.c (pthread_sigmask): Use correct + syscall. Fix typo in case INTERNAL_SYSCALL is not used. + + * sysdeps/i386/pthread_spin_destroy.c: Moved to... + * sysdeps/pthread/pthread_spin_destroy.c: ...here. New file. + + * sysdeps/i386/pthread_sigmask.c: Removed. Use the generic code. + * sysdeps/pthread/pthread_sigmask.c (pthread_sigmask): Return correct + value in case of an error. Add support for INTERNAL_SYSCALL. * sysdeps/i386/pthread_sigmask.c (pthread_sigmask): Return correct value in case of an error. diff --git a/nptl/sysdeps/i386/i686/pthread_spin_trylock.S b/nptl/sysdeps/i386/i686/pthread_spin_trylock.S index 881976c4fe..2ab83e6969 100644 --- a/nptl/sysdeps/i386/i686/pthread_spin_trylock.S +++ b/nptl/sysdeps/i386/i686/pthread_spin_trylock.S @@ -19,6 +19,13 @@ #define EBUSY 16 + +#ifdef UP +# define LOCK +#else +# define LOCK lock +#endif + .globl pthread_spin_trylock .type pthread_spin_trylock,@function .align 16 @@ -26,9 +33,10 @@ pthread_spin_trylock: movl 4(%esp), %edx movl $1, %eax xorl %ecx, %ecx + LOCK cmpxchgl %ecx, (%edx) - movl $EBUSY, %ecx - movl $0, %eax - cmovne %ecx, %eax + movl $EBUSY, %edx + movl %ecx, %eax + cmovne %edx, %eax ret .size pthread_spin_trylock,.-pthread_spin_trylock diff --git a/nptl/sysdeps/i386/pthreaddef.h b/nptl/sysdeps/i386/pthreaddef.h index 6efa1b6d82..1fe9455848 100644 --- a/nptl/sysdeps/i386/pthreaddef.h +++ b/nptl/sysdeps/i386/pthreaddef.h @@ -49,7 +49,3 @@ asm volatile ("movl %1, %%ebx; int $0x80" \ :: "a" (__NR_exit), "r" (val)); \ } -#define gettid() \ - ({ int tid; \ - __asm __volatile ("int $0x80" : "=a" (tid) : "0" (__NR_gettid)); \ - tid; }) diff --git a/nptl/sysdeps/pthread/pthread_sigmask.c b/nptl/sysdeps/pthread/pthread_sigmask.c index 5b46c53715..99ec52baa5 100644 --- a/nptl/sysdeps/pthread/pthread_sigmask.c +++ b/nptl/sysdeps/pthread/pthread_sigmask.c @@ -43,12 +43,14 @@ pthread_sigmask (how, newmask, oldmask) } #ifdef INTERNAL_SYSCALL - int result = INTERNAL_SYSCALL (sigprocmask, 3, how, newmask, oldmask); + /* We know that realtime signals are available if NPTL is used. */ + int result = INTERNAL_SYSCALL (rt_sigprocmask, 4, how, newmask, oldmask, + _NSIG / 8); return (INTERNAL_SYSCALL_ERROR_P (result) ? INTERNAL_SYSCALL_ERRNO (result) : 0); #else - return sigprocmask (how, newmask, oldmask) == -1 : errno : 0; + return sigprocmask (how, newmask, oldmask) == -1 ? errno : 0; #endif } diff --git a/nptl/sysdeps/i386/pthread_spin_destroy.c b/nptl/sysdeps/pthread/pthread_spin_destroy.c similarity index 100% rename from nptl/sysdeps/i386/pthread_spin_destroy.c rename to nptl/sysdeps/pthread/pthread_spin_destroy.c diff --git a/nptl/sysdeps/x86_64/pthread_spin_init.c b/nptl/sysdeps/x86_64/pthread_spin_init.c new file mode 100644 index 0000000000..55696204c1 --- /dev/null +++ b/nptl/sysdeps/x86_64/pthread_spin_init.c @@ -0,0 +1 @@ +#include "../i386/pthread_spin_init.c" diff --git a/nptl/sysdeps/x86_64/pthread_spin_lock.c b/nptl/sysdeps/x86_64/pthread_spin_lock.c new file mode 100644 index 0000000000..7cf0e0ecce --- /dev/null +++ b/nptl/sysdeps/x86_64/pthread_spin_lock.c @@ -0,0 +1 @@ +#include "../i386/pthread_spin_lock.c" diff --git a/nptl/sysdeps/x86_64/pthread_spin_trylock.c b/nptl/sysdeps/x86_64/pthread_spin_trylock.c new file mode 100644 index 0000000000..7ddb37154b --- /dev/null +++ b/nptl/sysdeps/x86_64/pthread_spin_trylock.c @@ -0,0 +1 @@ +#include "../i386/i686/pthread_spin_trylock.c" diff --git a/nptl/sysdeps/x86_64/pthread_spin_unlock.c b/nptl/sysdeps/x86_64/pthread_spin_unlock.c new file mode 100644 index 0000000000..b287dc1f5c --- /dev/null +++ b/nptl/sysdeps/x86_64/pthread_spin_unlock.c @@ -0,0 +1 @@ +#include "../i386/pthread_spin_unlock.c" diff --git a/nptl/sysdeps/x86_64/pthreaddef.h b/nptl/sysdeps/x86_64/pthreaddef.h new file mode 100644 index 0000000000..697329c9e4 --- /dev/null +++ b/nptl/sysdeps/x86_64/pthreaddef.h @@ -0,0 +1,45 @@ +/* Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 2002. + + 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. */ + +/* Default stack size. */ +#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) + +/* Required stack pointer alignment at beginning. SSE requires 16 + bytes. */ +#define STACK_ALIGN 16 + +/* Minimal stack size after allocating thread descriptor and guard size. */ +#define MINIMAL_REST_STACK 2048 + +/* Alignment requirement for TCB. */ +#define TCB_ALIGNMENT 16 + +/* The signal used for asynchronous cancelation. */ +#define SIGCANCEL __SIGRTMIN + + +/* Location of current stack frame. */ +#define CURRENT_STACK_FRAME __builtin_frame_address (0) + + +/* XXX Until we have a better place keep the definitions here. */ + +/* While there is no such syscall. */ +#define __exit_thread_inline(val) \ + asm volatile ("syscall" :: "a" (__NR_exit), "D" (val)) diff --git a/nptl/tst-spin2.c b/nptl/tst-spin2.c index ff7421ae47..c55bc65779 100644 --- a/nptl/tst-spin2.c +++ b/nptl/tst-spin2.c @@ -88,12 +88,26 @@ main (void) err = pthread_spin_trylock (s); if (err == 0) { - puts ("spin_trylock succeeded"); + puts ("1st spin_trylock succeeded"); exit (1); } else if (err != EBUSY) { - puts ("spin_trylock didn't return EBUSY"); + puts ("1st spin_trylock didn't return EBUSY"); + exit (1); + } + + err = pthread_spin_unlock (s); + if (err != 0) + { + puts ("parent: spin_unlock failed"); + exit (1); + } + + err = pthread_spin_trylock (s); + if (err != 0) + { + puts ("2nd spin_trylock failed"); exit (1); } -- 2.43.5