mirror of
https://sourceware.org/git/glibc.git
synced 2025-04-24 21:47:24 +03:00
e4e9446ba3
2003-01-25 Guido Guenther <agx@sigxcpu.org> * sysdeps/unix/sysv/linux/mips/sysdep-cancel.h: New file. * sysdeps/unix/sysv/linux/mips/Makefile: New file.
146 lines
4.8 KiB
C
146 lines
4.8 KiB
C
/* Copyright (C) 2003 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Guido Guenther <agx@sigxcpu.org>, 2003.
|
|
|
|
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>
|
|
#ifndef __ASSEMBLER__
|
|
# include <linuxthreads/internals.h>
|
|
#endif
|
|
|
|
#if !defined NOT_IN_libc || defined IS_IN_libpthread
|
|
|
|
#ifdef __PIC__
|
|
# undef PSEUDO
|
|
# define PSEUDO(name, syscall_name, args) \
|
|
.align 2; \
|
|
99: la t9,__syscall_error; \
|
|
jr t9; \
|
|
ENTRY (name) \
|
|
.set noreorder; \
|
|
.cpload t9; \
|
|
.set reorder; \
|
|
SINGLE_THREAD_P(t0); \
|
|
bne zero, t0, Lpseudo_cancel; \
|
|
.set noreorder; \
|
|
li v0, SYS_ify(syscall_name); \
|
|
syscall; \
|
|
.set reorder; \
|
|
bne a3, zero, SYSCALL_ERROR_LABEL; \
|
|
ret; \
|
|
Lpseudo_cancel: \
|
|
SAVESTK_##args; \
|
|
sw ra, 28(sp); \
|
|
sw gp, 32(sp); \
|
|
PUSHARGS_##args; /* save syscall args */ \
|
|
CENABLE; \
|
|
lw gp, 32(sp); \
|
|
sw v0, 44(sp); /* save mask */ \
|
|
POPARGS_##args; /* restore syscall args */ \
|
|
.set noreorder; \
|
|
li v0, SYS_ify (syscall_name); \
|
|
syscall; \
|
|
.set reorder; \
|
|
sw v0, 36(sp); /* save syscall result */ \
|
|
sw a3, 40(sp); /* save syscall error flag */ \
|
|
lw a0, 44(sp); /* pass mask as arg1 */ \
|
|
CDISABLE; \
|
|
lw gp, 32(sp); \
|
|
lw v0, 36(sp); /* restore syscall result */ \
|
|
lw a3, 40(sp); /* restore syscall error flag */ \
|
|
lw ra, 28(sp); /* restore return address */ \
|
|
RESTORESTK; \
|
|
bne a3, zero, SYSCALL_ERROR_LABEL; \
|
|
Lpseudo_end:
|
|
#endif
|
|
|
|
# define PUSHARGS_0 /* nothing to do */
|
|
# define PUSHARGS_1 PUSHARGS_0 sw a0, 0(sp);
|
|
# define PUSHARGS_2 PUSHARGS_1 sw a1, 4(sp);
|
|
# define PUSHARGS_3 PUSHARGS_2 sw a2, 8(sp);
|
|
# define PUSHARGS_4 PUSHARGS_3 sw a3, 12(sp);
|
|
# define PUSHARGS_5 PUSHARGS_4 /* handeld by SAVESTK_## */
|
|
# define PUSHARGS_6 PUSHARGS_5
|
|
# define PUSHARGS_7 PUSHARGS_6
|
|
|
|
# define POPARGS_0 /* nothing to do */
|
|
# define POPARGS_1 POPARGS_0 lw a0, 0(sp);
|
|
# define POPARGS_2 POPARGS_1 lw a1, 4(sp);
|
|
# define POPARGS_3 POPARGS_2 lw a2, 8(sp);
|
|
# define POPARGS_4 POPARGS_3 lw a3, 12(sp);
|
|
# define POPARGS_5 POPARGS_4 /* args already in new stackframe */
|
|
# define POPARGS_6 POPARGS_5
|
|
# define POPARGS_7 POPARGS_6
|
|
|
|
|
|
# define STKSPACE 48
|
|
# define SAVESTK_0 subu sp, STKSPACE
|
|
# define SAVESTK_1 SAVESTK_0
|
|
# define SAVESTK_2 SAVESTK_1
|
|
# define SAVESTK_3 SAVESTK_2
|
|
# define SAVESTK_4 SAVESTK_3
|
|
# define SAVESTK_5 lw t0, 16(sp); \
|
|
subu sp, STKSPACE; \
|
|
sw t0, 16(sp)
|
|
|
|
# define SAVESTK_6 lw t0, 16(sp); \
|
|
lw t1, 20(sp); \
|
|
subu sp, STKSPACE; \
|
|
sw t0, 16(sp); \
|
|
sw t1, 20(sp)
|
|
|
|
# define SAVESTK_7 lw t0, 16(sp); \
|
|
lw t1, 20(sp); \
|
|
lw t2, 24(sp); \
|
|
subu sp, STKSPACE; \
|
|
sw t0, 16(sp); \
|
|
sw t1, 20(sp); \
|
|
sw t2, 24(sp)
|
|
|
|
# define RESTORESTK addu sp, STKSPACE
|
|
|
|
|
|
# ifdef IS_IN_libpthread
|
|
# define CENABLE la t9, __pthread_enable_asynccancel; jalr t9;
|
|
# define CDISABLE la t9, __pthread_disable_asynccancel; jalr t9;
|
|
# define __local_multiple_threads __pthread_multiple_threads
|
|
# else
|
|
# define CENABLE la t9, __libc_enable_asynccancel; jalr t9;
|
|
# define CDISABLE la t9, __libc_disable_asynccancel; jalr t9;
|
|
# define __local_multiple_threads __libc_multiple_threads
|
|
# endif
|
|
|
|
# if !defined NOT_IN_libc
|
|
# define __local_multiple_threads __libc_multiple_threads
|
|
# else
|
|
# define __local_multiple_threads __pthread_multiple_threads
|
|
# endif
|
|
|
|
# ifndef __ASSEMBLER__
|
|
extern int __local_multiple_threads attribute_hidden;
|
|
# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1)
|
|
# else
|
|
# define SINGLE_THREAD_P(reg) lw reg, __local_multiple_threads
|
|
#endif
|
|
|
|
#elif !defined __ASSEMBLER__
|
|
|
|
/* This code should never be used but we define it anyhow. */
|
|
# define SINGLE_THREAD_P (1)
|
|
|
|
#endif
|