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[components] Remove lwP from v3.1.0

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This commit is contained in:
Bernard Xiong
2018-09-01 12:03:32 +08:00
parent 52761fb9c8
commit ab1a220eae
21 changed files with 4 additions and 3636 deletions
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components/lwp/Kconfig
-7
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@@ -1,7 +0,0 @@
config RT_USING_LWP
bool "Using light-weight process"
select RT_USING_DFS
depends on ARCH_ARM_CORTEX_M
default n
help
The lwP is a light weight process running in user mode.
components/lwp/SConscript
-20
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@@ -1,20 +0,0 @@
Import('rtconfig')
from building import *
cwd = GetCurrentDir()
src = []
CPPPATH = []
support_arch = {"arm": ["cortex-m3", "cortex-m4", "cortex-m7"]}
platform_file = {'armcc': 'rvds.S', 'gcc': 'gcc.S', 'iar': 'iar.S'}
if rtconfig.PLATFORM in platform_file.keys(): # support platforms
if rtconfig.ARCH in support_arch.keys() and rtconfig.CPU in support_arch[rtconfig.ARCH]:
# arch/arm/cortex-m7/lwp_gcc.S
asm_path = 'arch/' + rtconfig.ARCH + '/' + rtconfig.CPU + '/*_' + platform_file[rtconfig.PLATFORM]
src = Glob('*.c') + Glob(asm_path)
CPPPATH = [cwd]
group = DefineGroup('lwP', src, depend = ['RT_USING_LWP'], CPPPATH = CPPPATH)
Return('group')
components/lwp/arch/arm/cortex-m3/lwp_gcc.S
-176
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@@ -1,176 +0,0 @@
/*
* File : lwp_gcc.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
*/
.cpu cortex-m3
.syntax unified
.thumb
.text
/*
* void* lwp_get_sys_api(rt_uint32_t number);
*/
.global lwp_get_sys_api
.global lwp_get_kernel_sp
.global lwp_set_kernel_sp
/*
* void lwp_user_entry(u32 R0_text_addr, u32 R1_data_addr);
*/
.global lwp_user_entry
.type lwp_user_entry, % function
lwp_user_entry:
PUSH {R0 - R1} /* push text&data addr. */
MOV R0, SP /* v1 = SP */
BL lwp_set_kernel_sp /* lwp_set_kernel_sp(v1) */
POP {R0 - R1} /* pop app address to R1. */
/* set CPU to user-thread mode. */
MRS R2, CONTROL
ORR R2, R2, #0x03 /* use PSP, user-thread mode. */
MSR CONTROL, R2
/* set data address. */
MOV R9, R1
/* run app, only Thumb-mode. */
ORR R0, R0, #0x01
BX R0
/*
* void SVC_Handler(void);
*/
.global SVC_Handler
.type SVC_Handler, % function
SVC_Handler:
PUSH {LR}
/* get user SP. */
TST LR, #0x4
ITE EQ
MRSEQ R1, MSP
MRSNE R1, PSP
PUSH {R1} /* push app SP. */
MOV R2, R1
STMFD R2!, {R4 - R11} /* push app R4-R11 to app stack , and R1 not change. */
/* get SVC number. */
LDR R0, [R1, #24] /* get the app LR. */
LDRB R0, [R0, #-2] /* get the SVC No. from instruction. */
/* get kernel system API */
BL lwp_get_sys_api
/* if(api == NULL) return; */
CMP R0, #0
POPEQ {R1}
POPEQ {LR}
BXEQ LR
/* push api */
PUSH {R0}
/* get kernel SP to R0. */
BL lwp_get_kernel_sp
POP {R2} /* pop api to R2. */
POP {R1} /* pop app SP to R1. */
/* copy R1(app SP) to R0(server SP). */
LDMFD R1, {R4 - R11} /* pop exception_stack_frame to r4 - r11 register */
STMFD R0!, {R4 - R11} /* push exception_stack_frame to server SP. */
POP {LR}
PUSH {LR}
/* save app SP. */
PUSH {R0 - R3}
SUB R0, R1, #0x20 /* keep {R4 - R11} */
BL lwp_set_kernel_sp
POP {R0 - R3}
/* set to thread-privilege mode. */
MRS R3, CONTROL
BIC R3, R3, #0x01
ORR R3, R3, #0x02
MSR CONTROL, R3
/* call api. */
LDR R3, = svc_exit
STR R3, [R0, #20] /* update LR */
STR R2, [R0, #24] /* update api to PC */
MSR PSP, R0 /* update stack pointer */
POP {LR} /* 0xFFFFFFED */
ORR LR, LR, #0x10
BX LR
/*
* void svc_exit(void);
*/
.global svc_exit
.type svc_exit, % function
svc_exit:
/* get user SP. */
PUSH {R0} /* push result to SP. */
BL lwp_get_kernel_sp
LDMFD R0!, {R4 - R11} /* pop app {R4 - R11} */
ADD R0, R0, #16 /* skip R0-R3 */
LDMFD R0!, {R12, LR}
LDMFD R0!, {R1} /* pop PC to R1 */
LDMFD R0!, {R2} /* pop PSR to R2 */
/* align to 2 words */
ADD R0, R0, #0x07
BIC R0, R0, #0x07
PUSH {R0} /* push user-SP to SP */
/* save server SP. */
ADD R0, SP, #0x08 /* [user-SP, result] */
PUSH {R1 - R2, LR}
BL lwp_set_kernel_sp
POP {R1 - R2, LR}
POP {R3} /* pop user-SP to R3 */
POP {R0} /* restore API result. */
MSR APSR, R2 /* restore PSR */
MSR PSP, R3 /* restore app stack pointer */
/* restore to PSP & thread-unprivilege mode. */
MRS R2, CONTROL
ORR R2, R2, #0x03
MSR CONTROL, R2
/* return to lwp. */
ORR R1, R1, #0x01 /* only Thumb-mode. */
BX R1 /* return to user app. */
components/lwp/arch/arm/cortex-m3/lwp_iar.S
-176
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@@ -1,176 +0,0 @@
;/*
; * File : lwp_iar.S
; * This file is part of RT-Thread RTOS
; * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
; *
; * This program is free software; you can redistribute it and/or modify
; * it under the terms of the GNU General Public License as published by
; * the Free Software Foundation; either version 2 of the License, or
; * (at your option) any later version.
; *
; * This program 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 General Public License for more details.
; *
; * You should have received a copy of the GNU General Public License along
; * with this program; if not, write to the Free Software Foundation, Inc.,
; * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
; *
; * Change Logs:
; * Date Author Notes
; */
SECTION .text:CODE(2)
THUMB
REQUIRE8
PRESERVE8
;/*
; * void* lwp_get_sys_api(rt_uint32_t number);
; */
IMPORT lwp_get_sys_api
IMPORT lwp_get_kernel_sp
IMPORT lwp_set_kernel_sp
;/*
; * void lwp_user_entry(u32 R0_text_addr, u32 R1_data_addr);
; */
EXPORT lwp_user_entry
lwp_user_entry:
PUSH {R0-R1} ; push text&data addr.
MOV R0, SP ; v1 = SP
BL lwp_set_kernel_sp ; lwp_set_kernel_sp(v1)
POP {R0-R1} ; pop app address to R1.
; set CPU to user-thread mode.
MRS R2, CONTROL
ORR R2, R2, #0x03 ; use PSP, user-thread mode.
MSR CONTROL, R2
; set data address.
MOV R9, R1
; run app, only Thumb-mode.
ORR R0, R0, #0x01
BX R0
;/*
; * void SVC_Handler(void);
; */
EXPORT SVC_Handler
SVC_Handler:
PUSH {LR}
; get user SP.
TST LR, #0x4
ITE EQ
MRSEQ R1, MSP
MRSNE R1, PSP
PUSH {R1} ; push app SP.
MOV R2, R1
STMFD R2!, {R4 - R11} ; push app R4-R11 to app stack , and R1 not change.
; get SVC number.
LDR R0, [R1, #24] ; get the app LR.
LDRB R0, [R0, #-2] ; get the SVC No. from instruction.
; get kernel system API
BL lwp_get_sys_api
; if(api == NULL) return;
CMP R0, #0
ITTT EQ
POPEQ {R1}
POPEQ {LR}
BXEQ LR
; push api
PUSH {R0}
; get kernel SP to R0.
BL lwp_get_kernel_sp
POP {R2} ; pop api to R2.
POP {R1} ; pop app SP to R1.
; copy R1(app SP) to R0(server SP).
LDMFD R1, {R4 - R11} ; pop exception_stack_frame to r4 - r11 register
STMFD R0!, {R4 - R11} ; push exception_stack_frame to server SP.
POP {LR}
PUSH {LR}
; save app SP.
PUSH {R0 - R3}
SUB R0, R1, #0x20 ; keep {R4 - R11}
BL lwp_set_kernel_sp
POP {R0 - R3}
; set to thread-privilege mode.
MRS R3, CONTROL
BIC R3, R3, #0x01
ORR R3, R3, #0x02
MSR CONTROL, R3
; call api.
LDR R3, =svc_exit
STR R3, [R0, #20] ; update LR
STR R2, [R0, #24] ; update api to PC
MSR PSP, R0 ; update stack pointer
POP {LR} ; 0xFFFFFFED
ORR LR, LR, #0x10
BX LR
;/*
; * void svc_exit(void);
; */
EXPORT svc_exit
svc_exit:
; get user SP.
PUSH {R0} ; push result to SP.
BL lwp_get_kernel_sp
LDMFD R0!, {R4 - R11} ; pop app {R4 - R11}
ADD R0, R0, #16 ; skip R0-R3
LDMFD R0!, {R12, LR} ;
LDMFD R0!, {R1} ; pop PC to R1
LDMFD R0!, {R2} ; pop PSR to R2
; align to 2 words
ADD R0, R0, #0x07
BIC R0, R0, #0x07
PUSH {R0} ; push user-SP to SP
; save server SP.
ADD R0, SP, #0x08 ; [user-SP, result]
PUSH {R1 - R2, LR}
BL lwp_set_kernel_sp
POP {R1 - R2, LR}
POP {R3} ; pop user-SP to R3
POP {R0} ; restore API result.
MSR APSR, R2 ; restore PSR
MSR PSP, R3 ; restore app stack pointer
; restore to PSP & thread-unprivilege mode.
MRS R2, CONTROL
ORR R2, R2, #0x03
MSR CONTROL, R2
; return to lwp.
ORR R1, R1, #0x01 ; only Thumb-mode.
BX R1 ; return to user app.
END
components/lwp/arch/arm/cortex-m3/lwp_rvds.S
-184
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;/*
; * File : lwp_rvds.S
; * This file is part of RT-Thread RTOS
; * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
; *
; * This program is free software; you can redistribute it and/or modify
; * it under the terms of the GNU General Public License as published by
; * the Free Software Foundation; either version 2 of the License, or
; * (at your option) any later version.
; *
; * This program 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 General Public License for more details.
; *
; * You should have received a copy of the GNU General Public License along
; * with this program; if not, write to the Free Software Foundation, Inc.,
; * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
; *
; * Change Logs:
; * Date Author Notes
; */
AREA |.text|, CODE, READONLY, ALIGN=2
THUMB
REQUIRE8
PRESERVE8
;/*
; * void* lwp_get_sys_api(rt_uint32_t number);
; */
IMPORT lwp_get_sys_api
IMPORT lwp_get_kernel_sp
IMPORT lwp_set_kernel_sp
;/*
; * void lwp_user_entry(args, text, data);
; */
lwp_user_entry PROC
EXPORT lwp_user_entry
PUSH {R0-R3} ; push text&data addr.
MOV R0, SP ; v1 = SP
BL lwp_set_kernel_sp ; lwp_set_kernel_sp(v1)
; set CPU to user-thread mode.
MRS R2, CONTROL
ORR R2, R2, #0x03 ; use PSP, user-thread mode.
MSR CONTROL, R2
POP {R0-R3} ; pop app address to R1.
; set data address.
MOV R9, R2
; run app, only Thumb-mode.
ORR R1, R1, #0x01
BX R1
; never reach here!
ENDP
;/*
; * void SVC_Handler(void);
; */
SVC_Handler PROC
EXPORT SVC_Handler
PUSH {LR}
; get user SP.
TST LR, #0x4
ITE EQ
MRSEQ R1, MSP
MRSNE R1, PSP
PUSH {R1} ; push app SP.
MOV R2, R1
STMFD R2!, {R4 - R11} ; push app R4-R11 to app stack , and R1 not change.
; get SVC number.
LDR R0, [R1, #24] ; get the app LR.
LDRB R0, [R0, #-2] ; get the SVC No. from instruction.
; get kernel system API
BL lwp_get_sys_api
; if(api == NULL) return;
CMP R0, #0
POPEQ {R1}
POPEQ {LR}
BXEQ LR
; push api
PUSH {R0}
; get kernel SP to R0.
BL lwp_get_kernel_sp
POP {R2} ; pop api to R2.
POP {R1} ; pop app SP to R1.
; copy R1(app SP) to R0(server SP).
LDMFD R1, {R4 - R11} ; pop exception_stack_frame to r4 - r11 register
STMFD R0!, {R4 - R11} ; push exception_stack_frame to server SP.
POP {LR}
PUSH {LR}
; save app SP.
PUSH {R0 - R3}
SUB R0, R1, #0x20 ; keep {R4 - R11}
BL lwp_set_kernel_sp
POP {R0 - R3}
; set to thread-privilege mode.
MRS R3, CONTROL
BIC R3, R3, #0x01
ORR R3, R3, #0x02
MSR CONTROL, R3
; call api.
LDR R3, =svc_exit
STR R3, [R0, #20] ; update LR
STR R2, [R0, #24] ; update api to PC
MSR PSP, R0 ; update stack pointer
POP {LR} ; 0xFFFFFFED
ORR LR, LR, #0x10
BX LR
ENDP
;/*
; * void svc_exit(void);
; */
svc_exit PROC
EXPORT svc_exit
; get user SP.
PUSH {R0} ; push result to SP.
BL lwp_get_kernel_sp
LDMFD R0!, {R4 - R11} ; pop app {R4 - R11}
ADD R0, R0, #16 ; skip R0-R3
LDMFD R0!, {R12, LR} ;
LDMFD R0!, {R1} ; pop PC to R1
LDMFD R0!, {R2} ; pop PSR to R2
; align to 2 words
ADD R0, R0, #0x07
BIC R0, R0, #0x07
PUSH {R0} ; push user-SP to SP
; save server SP.
ADD R0, SP, #0x08 ; [user-SP, result]
PUSH {R1 - R2, LR}
BL lwp_set_kernel_sp
POP {R1 - R2, LR}
POP {R3} ; pop user-SP to R3
POP {R0} ; restore API result.
MSR APSR, R2 ; restore PSR
MSR PSP, R3 ; restore app stack pointer
; restore to PSP & thread-unprivilege mode.
MRS R2, CONTROL
ORR R2, R2, #0x03
MSR CONTROL, R2
; return to lwp.
ORR R1, R1, #0x01 ; only Thumb-mode.
BX R1 ; return to user app.
ENDP
ALIGN
END
components/lwp/arch/arm/cortex-m4/lwp_gcc.S
-210
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components/lwp/arch/arm/cortex-m4/lwp_iar.S
-215
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components/lwp/arch/arm/cortex-m4/lwp_rvds.S
-219
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components/lwp/arch/arm/cortex-m7/lwp_gcc.S
-210
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components/lwp/arch/arm/cortex-m7/lwp_iar.S
-215
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components/lwp/arch/arm/cortex-m7/lwp_rvds.S
-218
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components/lwp/lwp.c
-398
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components/lwp/lwp.h
-84
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/*
* File : lwp.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
*/
#ifndef __LWP_H__
#define __LWP_H__
#define LWP_MAGIC 0x5A
#define LWP_TYPE_FIX_ADDR 0x01
#define LWP_TYPE_DYN_ADDR 0x02
#define LWP_ARG_MAX 8
#include <stdint.h>
#include <rtthread.h>
#include <dfs.h>
#include <lwp_memheap.h>
struct rt_lwp
{
uint8_t lwp_type;
uint8_t heap_cnt;
uint8_t reserv[2];
rt_list_t hlist; /**< headp list */
uint8_t *text_entry;
uint32_t text_size;
uint8_t *data;
uint32_t data_size;
uint32_t *kernel_sp; /**< kernel stack point */
struct dfs_fdtable fdt;
void *args;
};
struct lwp_header
{
uint8_t magic;
uint8_t compress_encrypt_algo;
uint16_t reserved;
uint32_t crc32;
};
struct lwp_chunk
{
uint32_t total_len;
char name[4];
uint32_t data_len;
uint32_t data_len_space;
};
extern struct rt_lwp *rt_lwp_self(void);
extern void rt_lwp_mem_init(struct rt_lwp *lwp);
extern void rt_lwp_mem_deinit(struct rt_lwp *lwp);
extern void *rt_lwp_mem_malloc(rt_uint32_t size);
extern void rt_lwp_mem_free(void *addr);
extern void *rt_lwp_mem_realloc(void *rmem, rt_size_t newsize);
#endif
components/lwp/lwp_mem.c
-236
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components/lwp/lwp_mem.h
-34
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/*
* File : lwp_mem.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
*/
#ifndef __LWP_MEM_H__
#define __LWP_MEM_H__
extern void rt_lwp_mem_init(struct rt_lwp *lwp);
extern void rt_lwp_mem_deinit(struct rt_lwp *lwp);
extern void *rt_lwp_mem_malloc(rt_uint32_t size);
extern void rt_lwp_mem_free(void *addr);
extern void *rt_lwp_mem_realloc(void *rmem, rt_size_t newsize);
#endif
components/lwp/lwp_memheap.c
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components/lwp/lwp_memheap.h
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/*
* File : lwp_memheap.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
*/
#ifndef __LWP_MEMHEAP_H__
#define __LWP_MEMHEAP_H__
#include <stdint.h>
#include <rtthread.h>
/**
* memory item on the heap
*/
struct rt_lwp_memheap_item
{
rt_uint32_t magic; /**< magic number for memheap */
struct rt_lwp_memheap *pool_ptr; /**< point of pool */
struct rt_lwp_memheap_item *next; /**< next memheap item */
struct rt_lwp_memheap_item *prev; /**< prev memheap item */
struct rt_lwp_memheap_item *next_free; /**< next free memheap item */
struct rt_lwp_memheap_item *prev_free; /**< prev free memheap item */
};
/**
* Base structure of memory heap object
*/
struct rt_lwp_memheap
{
struct rt_object parent; /**< inherit from rt_object */
void *start_addr; /**< pool start address and size */
rt_uint32_t pool_size; /**< pool size */
rt_uint32_t available_size; /**< available size */
rt_uint32_t max_used_size; /**< maximum allocated size */
struct rt_lwp_memheap_item *block_list; /**< used block list */
struct rt_lwp_memheap_item *free_list; /**< free block list */
struct rt_lwp_memheap_item free_header; /**< free block list header */
struct rt_semaphore lock; /**< semaphore lock */
rt_list_t mlist;
};
extern rt_err_t rt_lwp_memheap_init(struct rt_lwp_memheap *memheap, const char *name, void *start_addr, rt_uint32_t size);
extern void *rt_lwp_memheap_alloc(struct rt_lwp_memheap *heap, rt_uint32_t size);
extern void rt_lwp_memheap_free(void *ptr);
extern void *rt_lwp_memheap_realloc(struct rt_lwp_memheap *heap, void *ptr, rt_size_t newsize);
extern rt_bool_t rt_lwp_memheap_is_empty(struct rt_lwp_memheap *memheap);
extern rt_bool_t rt_lwp_memheap_unavailable_size_get(void);
#endif
components/lwp/lwp_syscall.c
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components/lwp/lwp_syscall.h
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/*
* File : lwp_syscall.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2006-03-18 Bernard the first version
* 2006-04-25 Bernard add rt_hw_context_switch_interrupt declaration
* 2006-09-24 Bernard add rt_hw_context_switch_to declaration
* 2012-12-29 Bernard add rt_hw_exception_install declaration
* 2017-10-17 Hichard add some micros
*/
#ifndef __LWP_SYSCALL_H__
#define __LWP_SYSCALL_H__
#include <stdint.h>
#include <rtthread.h>
#include <dfs_posix.h>
#include <sys/time.h>
#include <sys/types.h>
typedef long suseconds_t; /* microseconds (signed) */
typedef long key_t; /* IPC key (for Sys V IPC) */
typedef uint32_t id_t; /* may contain pid, uid or gid */
/*
* Process priority specifications to get/setpriority.
*/
#define PRIO_MIN (-20)
#define PRIO_MAX 20
#define PRIO_PROCESS 0 /* only support lwp process */
#define PRIO_PGRP 1
#define PRIO_USER 2
#define TIMEVAL_TO_TIMESPEC(tv, ts) { \
(ts)->tv_sec = (tv)->tv_sec; \
(ts)->tv_nsec = (tv)->tv_usec * 1000; \
}
#define TIMESPEC_TO_TIMEVAL(tv, ts) { \
(tv)->tv_sec = (ts)->tv_sec; \
(tv)->tv_usec = (ts)->tv_nsec / 1000; \
}
void sys_exit(int value);
ssize_t sys_read(int fd, void *buf, size_t nbyte);
ssize_t sys_write(int fd, const void *buf, size_t nbyte);
off_t sys_lseek(int fd, off_t offset, int whence);
int sys_open(const char *name, int mode, ...);
int sys_close(int fd);
int sys_nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
int sys_getpriority(int which, id_t who);
int sys_setpriority(int which, id_t who, int prio);
int sys_gettimeofday(struct timeval *tp, struct timezone *tzp);
int sys_settimeofday(const struct timeval *tv, const struct timezone *tzp);
int sys_msgget(key_t key, int msgflg);
int sys_msgsend(int msqid, const void *msgp, size_t msgsz, int msgflg);
int sys_msgrcv(int msqid, void *msgp, size_t msgsz, long msgtyp, int msgflg);
int sys_log(const char* log, int size);
#endif