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glibc/linuxthreads/sysdeps/unix/sysv/linux/sparc/sparc32/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 | |
# undef PSEUDO | |
# define PSEUDO(name, syscall_name, args) \ | |
.text; \ | |
ENTRY(name) \ | |
ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1; \ | |
cmp %g1, 0; \ | |
bne 1f; \ | |
mov SYS_ify(syscall_name), %g1; \ | |
ta 0x10; \ | |
bcs __syscall_error_handler; \ | |
nop; \ | |
.subsection 2; \ | |
1: save %sp, -96, %sp; \ | |
CENABLE; \ | |
nop; \ | |
mov %o0, %l0; \ | |
COPY_ARGS_##args \ | |
mov SYS_ify(syscall_name), %g1; \ | |
ta 0x10; \ | |
bcs __syscall_error_handler2; \ | |
mov %o0, %l1; \ | |
CDISABLE; \ | |
mov %l0, %o0; \ | |
jmpl %i7 + 8, %g0; \ | |
restore %g0, %l1, %o0; \ | |
.previous; \ | |
SYSCALL_ERROR_HANDLER \ | |
SYSCALL_ERROR_HANDLER2 | |
#define SYSCALL_ERROR_HANDLER2 \ | |
SYSCALL_ERROR_HANDLER_ENTRY(__syscall_error_handler2) \ | |
.global __errno_location; \ | |
.type __errno_location,@function; \ | |
call __errno_location; \ | |
nop; \ | |
st %l1, [%o0]; \ | |
jmpl %i7 + 8, %g0; \ | |
restore %g0, -1, %o0; \ | |
.previous; | |
# ifdef IS_IN_libpthread | |
# define CENABLE call __pthread_enable_asynccancel | |
# define CDISABLE call __pthread_disable_asynccancel | |
# else | |
# define CENABLE call __libc_enable_asynccancel | |
# define CDISABLE call __libc_disable_asynccancel | |
# endif | |
#define COPY_ARGS_0 /* Nothing */ | |
#define COPY_ARGS_1 COPY_ARGS_0 mov %i0, %o0; | |
#define COPY_ARGS_2 COPY_ARGS_1 mov %i1, %o1; | |
#define COPY_ARGS_3 COPY_ARGS_2 mov %i2, %o2; | |
#define COPY_ARGS_4 COPY_ARGS_3 mov %i3, %o3; | |
#define COPY_ARGS_5 COPY_ARGS_4 mov %i4, %o4; | |
#define COPY_ARGS_6 COPY_ARGS_5 mov %i5, %o5; | |
# ifndef __ASSEMBLER__ | |
# define SINGLE_THREAD_P \ | |
__builtin_expect (THREAD_GETMEM (THREAD_SELF, \ | |
p_header.data.multiple_threads) == 0, 1) | |
# else | |
# define SINGLE_THREAD_P ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1 | |
# endif | |
#elif !defined __ASSEMBLER__ | |
/* This code should never be used but we define it anyhow. */ | |
# define SINGLE_THREAD_P (1) | |
#endif |