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Ignore whitespace Rev 1110 → Rev 1113

/uspace/trunk/libc/arch/mips32/include/atomic_arch.h
File deleted
/uspace/trunk/libc/arch/mips32/include/context_offset.h
0,0 → 1,15
/* This file is automatically generated by gencontext.c. */
/* struct context */
#define OFFSET_SP 0x0
#define OFFSET_PC 0x4
#define OFFSET_S0 0x8
#define OFFSET_S1 0xc
#define OFFSET_S2 0x10
#define OFFSET_S3 0x14
#define OFFSET_S4 0x18
#define OFFSET_S5 0x1c
#define OFFSET_S6 0x20
#define OFFSET_S7 0x24
#define OFFSET_S8 0x28
#define OFFSET_GP 0x2c
#define OFFSET_TLS 0x30
/uspace/trunk/libc/arch/mips32/include/psthread.h
0,0 → 1,53
/*
* Copyright (C) 2006 Ondrej Palkovsky
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
 
#ifndef __LIBC__mips32PSTHREAD_H__
#define __LIBC__mips32PSTHREAD_H__
 
#include <types.h>
 
#define SP_DELTA (8)
 
typedef struct {
uint32_t sp;
uint32_t pc;
uint32_t s0;
uint32_t s1;
uint32_t s2;
uint32_t s3;
uint32_t s4;
uint32_t s5;
uint32_t s6;
uint32_t s7;
uint32_t s8;
uint32_t gp;
uint32_t tls; /* Thread local storage(=k1) */
} context_t;
 
#endif
/uspace/trunk/libc/arch/mips32/include/atomic.h
0,0 → 1,67
/*
* Copyright (C) 2005 Ondrej Palkovsky
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
 
#ifndef __mips32_ATOMIC_H__
#define __mips32_ATOMIC_H__
 
#define atomic_inc(x) ((void) atomic_add(x, 1))
#define atomic_dec(x) ((void) atomic_add(x, -1))
 
#define atomic_postinc(x) (atomic_add(x, 1) - 1)
#define atomic_postdec(x) (atomic_add(x, -1) + 1)
 
#define atomic_preinc(x) atomic_add(x, 1)
#define atomic_predec(x) atomic_add(x, -1)
 
/* Atomic addition of immediate value.
*
* @param val Memory location to which will be the immediate value added.
* @param i Signed immediate that will be added to *val.
*
* @return Value after addition.
*/
static inline long atomic_add(atomic_t *val, int i)
{
long tmp, v;
 
__asm__ volatile (
"1:\n"
" ll %0, %1\n"
" addiu %0, %0, %3\n" /* same as addi, but never traps on overflow */
" move %2, %0\n"
" sc %0, %1\n"
" beq %0, %4, 1b\n" /* if the atomic operation failed, try again */
/* nop */ /* nop is inserted automatically by compiler */
: "=r" (tmp), "=m" (val->count), "=r" (v)
: "i" (i), "i" (0)
);
 
return v;
}
 
#endif
/uspace/trunk/libc/arch/mips32/include/thread.h
0,0 → 1,46
/*
* Copyright (C) 2006 Ondrej Palkovsky
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
 
#ifndef __LIBC__mips32THREAD_H__
#define __LIBC__mips32THREAD_H__
 
 
static inline void __tls_set(void *tls)
{
__asm__ volatile ("add $27, %0, $0" : : "r"(tls)); /* Move tls to K1 */
}
 
static inline void * __tls_get(void)
{
void * retval;
 
__asm__ volatile("add %0, $27, $0" : "=r"(retval));
return retval;
}
 
#endif
/uspace/trunk/libc/arch/mips32/Makefile.inc
31,9 → 31,10
 
TARGET = mipsel-linux-gnu
TOOLCHAIN_DIR = /usr/local/mipsel/bin
CFLAGS += -mno-abicalls -mips3
CFLAGS += -mno-abicalls -mips3 -ftls-model=global-dynamic
 
ARCH_SOURCES += arch/$(ARCH)/src/syscall.c
ARCH_SOURCES += arch/$(ARCH)/src/syscall.c \
arch/$(ARCH)/src/psthread.S
 
LFLAGS += -N
 
/uspace/trunk/libc/arch/mips32/src/entry.s
36,13 → 36,18
## User-space task entry point
#
#
.ent __entry
__entry:
lui $28, _gp
 
# Mips o32 may store its arguments on stack, make space,
# so that it could work with -O0
addiu $sp, -16
jal __main
jal main
nop
jal __exit
nop
.end __entry
/uspace/trunk/libc/arch/mips32/src/thread_entry.s
37,6 → 37,7
## User-space thread entry point for all but the first threads.
#
#
.ent __thread_entry
__thread_entry:
lui $28, _gp
 
44,9 → 45,13
# v0 contains address of uarg.
#
add $4, $2, 0
jal thread_main
# Mips o32 may store its arguments on stack, make space
addiu $sp, -16
j __thread_main
nop
#
# Not reached.
#
.end __thread_entry
/uspace/trunk/libc/arch/mips32/src/psthread.S
0,0 → 1,88
#
# Copyright (C) 2003-2004 Jakub Jermar
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# - Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# - Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# - The name of the author may not be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
 
.text
 
.set noat
.set noreorder
.set nomacro
 
 
#include <arch/asm/regname.h>
#include <libarch/context_offset.h>
.global context_save
.global context_restore
 
.macro CONTEXT_STORE r
sw $s0,OFFSET_S0(\r)
sw $s1,OFFSET_S1(\r)
sw $s2,OFFSET_S2(\r)
sw $s3,OFFSET_S3(\r)
sw $s4,OFFSET_S4(\r)
sw $s5,OFFSET_S5(\r)
sw $s6,OFFSET_S6(\r)
sw $s7,OFFSET_S7(\r)
sw $s8,OFFSET_S8(\r)
sw $gp,OFFSET_GP(\r)
sw $k1,OFFSET_TLS(\r)
sw $ra,OFFSET_PC(\r)
sw $sp,OFFSET_SP(\r)
.endm
 
.macro CONTEXT_LOAD r
lw $s0,OFFSET_S0(\r)
lw $s1,OFFSET_S1(\r)
lw $s2,OFFSET_S2(\r)
lw $s3,OFFSET_S3(\r)
lw $s4,OFFSET_S4(\r)
lw $s5,OFFSET_S5(\r)
lw $s6,OFFSET_S6(\r)
lw $s7,OFFSET_S7(\r)
lw $s8,OFFSET_S8(\r)
lw $gp,OFFSET_GP(\r)
lw $k1,OFFSET_TLS(\r)
lw $ra,OFFSET_PC(\r)
lw $sp,OFFSET_SP(\r)
.endm
context_save:
CONTEXT_STORE $a0
 
# context_save returns 1
j $ra
li $v0, 1
context_restore:
CONTEXT_LOAD $a0
 
# context_restore returns 0
j $ra
xor $v0, $v0