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glibc/linuxthreads/sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h
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/* 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. | |
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> | |
#include <tls.h> | |
#ifndef __ASSEMBLER__ | |
# include <linuxthreads/internals.h> | |
#endif | |
#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt | |
# undef PSEUDO | |
# define PSEUDO(name, syscall_name, args) \ | |
.text; \ | |
ENTRY (name) \ | |
adds r14 = MULTIPLE_THREADS_OFFSET, r13;; \ | |
ld4 r14 = [r14]; \ | |
mov r15 = SYS_ify(syscall_name);; \ | |
cmp4.ne p6, p7 = 0, r14; \ | |
(p6) br.cond.spnt .Lpseudo_cancel;; \ | |
break __BREAK_SYSCALL;; \ | |
cmp.eq p6,p0=-1,r10; \ | |
(p6) br.cond.spnt.few __syscall_error; \ | |
ret;; \ | |
.Lpseudo_cancel: \ | |
.prologue; \ | |
.regstk args, 5, args, 0; \ | |
.save ar.pfs, loc0; \ | |
alloc loc0 = ar.pfs, args, 5, args, 0; \ | |
.save rp, loc1; \ | |
mov loc1 = rp;; \ | |
.body; \ | |
CENABLE;; \ | |
mov loc2 = r8; \ | |
COPY_ARGS_##args \ | |
mov r15 = SYS_ify(syscall_name); \ | |
break __BREAK_SYSCALL;; \ | |
mov loc3 = r8; \ | |
mov loc4 = r10; \ | |
mov out0 = loc2; \ | |
CDISABLE;; \ | |
cmp.eq p6,p0=-1,loc4; \ | |
(p6) br.cond.spnt.few __syscall_error_##args; \ | |
mov r8 = loc3; \ | |
mov rp = loc1; \ | |
mov ar.pfs = loc0; \ | |
.Lpseudo_end: \ | |
ret; \ | |
.endp name; \ | |
.section .gnu.linkonce.t.__syscall_error_##args, "ax"; \ | |
.align 32; \ | |
.proc __syscall_error_##args; \ | |
.global __syscall_error_##args; \ | |
.hidden __syscall_error_##args; \ | |
__syscall_error_##args: \ | |
.prologue; \ | |
.regstk args, 5, args, 0; \ | |
.save ar.pfs, loc0; \ | |
.save rp, loc1; \ | |
.body; \ | |
mov loc4 = r1;; \ | |
br.call.sptk.many b0 = __errno_location;; \ | |
st4 [r8] = loc3; \ | |
mov r1 = loc4; \ | |
mov rp = loc1; \ | |
mov r8 = -1; \ | |
mov ar.pfs = loc0 | |
# ifdef IS_IN_libpthread | |
# define CENABLE br.call.sptk.many b0 = __pthread_enable_asynccancel | |
# define CDISABLE br.call.sptk.many b0 = __pthread_disable_asynccancel | |
# elif !defined NOT_IN_libc | |
# define CENABLE br.call.sptk.many b0 = __libc_enable_asynccancel | |
# define CDISABLE br.call.sptk.many b0 = __libc_disable_asynccancel | |
# else | |
# define CENABLE br.call.sptk.many b0 = __librt_enable_asynccancel | |
# define CDISABLE br.call.sptk.many b0 = __librt_disable_asynccancel | |
# endif | |
#define COPY_ARGS_0 /* Nothing */ | |
#define COPY_ARGS_1 COPY_ARGS_0 mov out0 = in0; | |
#define COPY_ARGS_2 COPY_ARGS_1 mov out1 = in1; | |
#define COPY_ARGS_3 COPY_ARGS_2 mov out2 = in2; | |
#define COPY_ARGS_4 COPY_ARGS_3 mov out3 = in3; | |
#define COPY_ARGS_5 COPY_ARGS_4 mov out4 = in4; | |
#define COPY_ARGS_6 COPY_ARGS_5 mov out5 = in5; | |
#define COPY_ARGS_7 COPY_ARGS_6 mov out6 = in6; | |
# ifndef __ASSEMBLER__ | |
# define SINGLE_THREAD_P \ | |
__builtin_expect (THREAD_GETMEM (THREAD_SELF, p_multiple_threads) == 0, 1) | |
# else | |
# define SINGLE_THREAD_P \ | |
adds r14 = MULTIPLE_THREADS_OFFSET, r13 ;; ld4 r14 = [r14] ;; cmp4.ne p6, p7 = 0, r14 | |
# endif | |
#elif !defined __ASSEMBLER__ | |
/* This code should never be used but we define it anyhow. */ | |
# define SINGLE_THREAD_P (1) | |
#endif |