From b93d565a5117afc5dde458438d5d16621b9c4dd4 Mon Sep 17 00:00:00 2001 From: Paul Pluzhnikov Date: Wed, 2 May 2012 13:58:40 -0700 Subject: Avoid "anonymous" code in pthread_spin_lock. --- nptl/sysdeps/x86_64/pthread_spin_lock.S | 36 +++++++++++++++++++++++++++++++++ nptl/sysdeps/x86_64/pthread_spin_lock.c | 1 - 2 files changed, 36 insertions(+), 1 deletion(-) create mode 100644 nptl/sysdeps/x86_64/pthread_spin_lock.S delete mode 100644 nptl/sysdeps/x86_64/pthread_spin_lock.c (limited to 'nptl/sysdeps/x86_64') diff --git a/nptl/sysdeps/x86_64/pthread_spin_lock.S b/nptl/sysdeps/x86_64/pthread_spin_lock.S new file mode 100644 index 0000000000..5e3431c903 --- /dev/null +++ b/nptl/sysdeps/x86_64/pthread_spin_lock.S @@ -0,0 +1,36 @@ +/* Copyright (C) 2012 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, see + . */ + +#include + + .globl pthread_spin_lock + .type pthread_spin_lock,@function + .align 16 +pthread_spin_lock: +1: LOCK + decl 0(%rdi) + jne 2f + xor %eax, %eax + ret + + .align 16 +2: rep + nop + cmpl $0, 0(%rdi) + jg 1b + jmp 2b + .size pthread_spin_lock,.-pthread_spin_lock diff --git a/nptl/sysdeps/x86_64/pthread_spin_lock.c b/nptl/sysdeps/x86_64/pthread_spin_lock.c deleted file mode 100644 index 7cf0e0ecce..0000000000 --- a/nptl/sysdeps/x86_64/pthread_spin_lock.c +++ /dev/null @@ -1 +0,0 @@ -#include "../i386/pthread_spin_lock.c" -- cgit v1.2.3-70-g09d2