From 20b839bf125885ade1197d690b4b06cd0f32073b Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 3 Dec 2002 20:21:08 +0000 Subject: Define HAVE_CMOV and include i486 version. --- nptl/sysdeps/i386/i486/pthread_spin_trylock.S | 48 +++++++++++++++++++++++++++ nptl/sysdeps/i386/i586/pthread_spin_trylock.S | 20 +++++++++++ nptl/sysdeps/i386/i686/pthread_spin_trylock.S | 25 ++------------ 3 files changed, 70 insertions(+), 23 deletions(-) create mode 100644 nptl/sysdeps/i386/i486/pthread_spin_trylock.S create mode 100644 nptl/sysdeps/i386/i586/pthread_spin_trylock.S (limited to 'nptl') diff --git a/nptl/sysdeps/i386/i486/pthread_spin_trylock.S b/nptl/sysdeps/i386/i486/pthread_spin_trylock.S new file mode 100644 index 0000000..abda929 --- /dev/null +++ b/nptl/sysdeps/i386/i486/pthread_spin_trylock.S @@ -0,0 +1,48 @@ +/* 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. */ + +#define EBUSY 16 + + +#ifdef UP +# define LOCK +#else +# define LOCK lock +#endif + + .globl pthread_spin_trylock + .type pthread_spin_trylock,@function + .align 16 +pthread_spin_trylock: + movl 4(%esp), %edx + movl $1, %eax + xorl %ecx, %ecx + LOCK + cmpxchgl %ecx, (%edx) + movl $EBUSY, %edx + movl %ecx, %eax +#ifdef HAVE_CMOV + cmovnel %edx, %eax +#else + je 0f + movl %edx, %eax +0: +#endif + ret + .size pthread_spin_trylock,.-pthread_spin_trylock diff --git a/nptl/sysdeps/i386/i586/pthread_spin_trylock.S b/nptl/sysdeps/i386/i586/pthread_spin_trylock.S new file mode 100644 index 0000000..ffe3d45 --- /dev/null +++ b/nptl/sysdeps/i386/i586/pthread_spin_trylock.S @@ -0,0 +1,20 @@ +/* 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. */ + +#include "../i486/pthread_spin_trylock.S" diff --git a/nptl/sysdeps/i386/i686/pthread_spin_trylock.S b/nptl/sysdeps/i386/i686/pthread_spin_trylock.S index 2ab83e6..a5d861f 100644 --- a/nptl/sysdeps/i386/i686/pthread_spin_trylock.S +++ b/nptl/sysdeps/i386/i686/pthread_spin_trylock.S @@ -17,26 +17,5 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#define EBUSY 16 - - -#ifdef UP -# define LOCK -#else -# define LOCK lock -#endif - - .globl pthread_spin_trylock - .type pthread_spin_trylock,@function - .align 16 -pthread_spin_trylock: - movl 4(%esp), %edx - movl $1, %eax - xorl %ecx, %ecx - LOCK - cmpxchgl %ecx, (%edx) - movl $EBUSY, %edx - movl %ecx, %eax - cmovne %edx, %eax - ret - .size pthread_spin_trylock,.-pthread_spin_trylock +#define HAVE_CMOV 1 +#include "../i486/pthread_spin_trylock.S" -- cgit v1.1