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/* Copyright (C) 2002, 2003, 2004 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 <nptl/pthreadP.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) \
ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1; \
cmp %g1, 0; \
bne 1f; \
.type __##syscall_name##_nocancel,@function; \
.globl __##syscall_name##_nocancel; \
__##syscall_name##_nocancel: \
mov SYS_ify(syscall_name), %g1; \
ta 0x10; \
bcs __syscall_error_handler; \
nop; \
.size __##syscall_name##_nocancel,.-__##syscall_name##_nocancel; \
.subsection 2; \
cfi_startproc; \
1: save %sp, -96, %sp; \
cfi_def_cfa_register (%fp); \
cfi_window_save; \
cfi_register (%o7, %i7); \
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; \
cfi_endproc; \
.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; \
CDISABLE; \
mov %l0, %o0; \
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
# elif !defined NOT_IN_libc
# define CENABLE call __libc_enable_asynccancel
# define CDISABLE call __libc_disable_asynccancel
# elif defined IS_IN_librt
# define CENABLE call __librt_enable_asynccancel
# define CDISABLE call __librt_disable_asynccancel
# else
# error Unsupported library
# 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, \
header.multiple_threads) == 0, 1)
# else
# define SINGLE_THREAD_P ld [%g7 + MULTIPLE_THREADS_OFFSET], %g1
# endif
#elif !defined __ASSEMBLER__
# define SINGLE_THREAD_P (1)
# define NO_CANCELLATION 1
#endif
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