[components] Remove lwP from v3.1.0

components/Kconfig

@@ -31,8 +31,6 @@ source "$RTT_DIR/components/drivers/Kconfig"
 
 source "$RTT_DIR/components/libc/Kconfig"
 
-source "$RTT_DIR/components/lwp/Kconfig"
-
 source "$RTT_DIR/components/net/Kconfig"
 
 source "$RTT_DIR/components/vbus/Kconfig"

components/lwp/Kconfig

@@ -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

@@ -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

@@ -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

@@ -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

@@ -1,184 +0,0 @@
-;/*
-; * 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

@@ -1,210 +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-m4
-.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
-
-#if defined (__VFP_FP__) && !defined(__SOFTFP__)
-    TST       LR, #0x10
-    VSTMDBEQ  R2!, {D8 - D15}
-#endif
-
-    STMFD   R2!, {R4 - R11}     /* push app R4-R11 to app stack , and R1 not change. */
-
-#if defined (__VFP_FP__) && !defined(__SOFTFP__)
-    MOV     R4, #0x00                   /* flag = 0 */
-    TST     LR, #0x10                   /* if(!EXC_RETURN[4]) */
-    MOVEQ   R4, #0x01                   /* flag = 1 */
-    STMFD   R2!, {R4}                   /* push flag */
-#endif
-
-    /* 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}
-#if defined (__VFP_FP__) && !defined(__SOFTFP__)
-    TST     LR, #0x10
-    SUBEQ   R0, R1, #0x64       /* keep {R4 - R11}, {D8-D15}, FLAG */
-    SUBNE   R0, R1, #0x24       /* keep {R4 - R11}, FLAG */
-#else
-    SUB     R0, R1, #0x20       /* keep {R4 - R11} */
-#endif
-    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
-
-#if defined (__VFP_FP__) && !defined(__SOFTFP__)
-    LDMFD   R0!, {R3}                   /* pop flag */
-#endif
-
-    LDMFD   R0!, {R4 - R11}             /* pop app {R4 - R11} */
-
-#if defined (__VFP_FP__) && !defined(__SOFTFP__)
-    CMP     R3,  #0                     /* if(flag_r3 != 0) */
-    VLDMIANE  R0!, {D8 - D15}           /* pop FPU register s16~s31 */
-#endif
-
-    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 */
-
-#if defined (__VFP_FP__) && !defined(__SOFTFP__)
-    CMP     R3,  #0                     /* if(flag_r3 != 0) */
-    VLDMIANE  R0!, {D0 - D7}            /* pop FPU register s16~s31 */
-    LDMIANE   R0!, {R3}
-    VMSRNE    FPSCR,  R3
-#endif
-
-    /* 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-m4/lwp_iar.S

@@ -1,215 +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
-
-#if defined ( __ARMVFP__ )
-    TST       LR, #0x10
-    IT        EQ
-    VSTMDBEQ    R2!, {D8 - D15}
-#endif
-
-    STMFD   R2!, {R4 - R11}              ; push app R4-R11 to app stack , and R1 not change.
-
-#if defined ( __ARMVFP__ )
-    MOV     R4, #0x00               ; flag = 0
-    TST     LR, #0x10               ; if(!EXC_RETURN[4])
-    IT      EQ
-    MOVEQ   R4, #0x01               ; flag = 1
-    STMFD   R2!, {R4}               ; push flag
-#endif
-
-    ; 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}
-#if defined ( __ARMVFP__ )
-    TST     LR, #0x10
-    ITE     EQ
-    SUBEQ   R0, R1, #0x64               ; keep {R4 - R11}, {D8-D15}, FLAG
-    SUBNE   R0, R1, #0x24               ; keep {R4 - R11}, FLAG
-#else
-    SUB     R0, R1, #0x20               ; keep {R4 - R11}
-#endif
-    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
-
-#if defined ( __ARMVFP__ )
-    LDMFD   R0!, {R3}               ; pop flag
-#endif
-
-    LDMFD   R0!, {R4 - R11}         ; pop app {R4 - R11}
-
-#if defined ( __ARMVFP__ )
-    CMP     R3,  #0                 ; if(flag_r3 != 0)
-    IT      NE
-    VLDMIANE  R0!, {D8 - D15}       ; pop FPU register s16~s31
-#endif
-
-    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
-
-#if defined ( __ARMVFP__ )
-    CMP     R3,  #0                 ; if(flag_r3 != 0)
-    ITTT      NE
-    VLDMIANE  R0!, {D0 - D7}       ; pop FPU register s16~s31
-    LDMIANE   R0!, {R3}
-    VMSRNE    FPSCR,  R3
-#endif
-
-    ; 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-m4/lwp_rvds.S

@@ -1,219 +0,0 @@
-;/*
-; * 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
-
-    IF      {FPU} != "SoftVFP"
-    TST       LR, #0x10
-    VSTMFDEQ  R2!, {D8 - D15}
-    ENDIF
-
-    STMFD   R2!, {R4 - R11}              ; push app R4-R11 to app stack , and R1 not change.
-
-    IF      {FPU} != "SoftVFP"
-    MOV     R4, #0x00               ; flag = 0
-    TST     LR, #0x10               ; if(!EXC_RETURN[4])
-    MOVEQ   R4, #0x01               ; flag = 1
-    STMFD   R2!, {R4}               ; push flag
-    ENDIF
-
-    ; 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}
-    IF      {FPU} != "SoftVFP"
-    TST     LR, #0x10
-    SUBEQ   R0, R1, #0x64               ; keep {R4 - R11}, {D8-D15}, FLAG
-    SUBNE   R0, R1, #0x24               ; keep {R4 - R11}, FLAG
-    ELSE
-    SUB     R0, R1, #0x20               ; keep {R4 - R11}
-    ENDIF
-    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
-
-    IF      {FPU} != "SoftVFP"
-    LDMFD   R0!, {R3}               ; pop flag
-    ENDIF
-
-    LDMFD   R0!, {R4 - R11}         ; pop app {R4 - R11}
-
-    IF      {FPU} != "SoftVFP"
-    CMP     R3,  #0                 ; if(flag_r3 != 0)
-    VLDMFDNE  R0!, {D8 - D15}       ; pop FPU register s16~s31
-    ENDIF
-
-    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
-
-    IF      {FPU} != "SoftVFP"
-    CMP     R3,  #0                 ; if(flag_r3 != 0)
-    VLDMFDNE  R0!, {D0 - D7}       ; pop FPU register s16~s31
-    LDMFDNE   R0!, {R3}
-    VMSRNE    FPSCR,  R3
-
-    ENDIF
-
-    ; 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-m7/lwp_gcc.S

@@ -1,210 +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-m4
-.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
-
-#if defined (__VFP_FP__) && !defined(__SOFTFP__)
-    TST       LR, #0x10
-    VSTMDBEQ  R2!, {D8 - D15}
-#endif
-
-    STMFD   R2!, {R4 - R11}     /* push app R4-R11 to app stack , and R1 not change. */
-
-#if defined (__VFP_FP__) && !defined(__SOFTFP__)
-    MOV     R4, #0x00                   /* flag = 0 */
-    TST     LR, #0x10                   /* if(!EXC_RETURN[4]) */
-    MOVEQ   R4, #0x01                   /* flag = 1 */
-    STMFD   R2!, {R4}                   /* push flag */
-#endif
-
-    /* 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}
-#if defined (__VFP_FP__) && !defined(__SOFTFP__)
-    TST     LR, #0x10
-    SUBEQ   R0, R1, #0x64       /* keep {R4 - R11}, {D8-D15}, FLAG */
-    SUBNE   R0, R1, #0x24       /* keep {R4 - R11}, FLAG */
-#else
-    SUB     R0, R1, #0x20       /* keep {R4 - R11} */
-#endif
-    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
-
-#if defined (__VFP_FP__) && !defined(__SOFTFP__)
-    LDMFD   R0!, {R3}                   /* pop flag */
-#endif
-
-    LDMFD   R0!, {R4 - R11}             /* pop app {R4 - R11} */
-
-#if defined (__VFP_FP__) && !defined(__SOFTFP__)
-    CMP     R3,  #0                     /* if(flag_r3 != 0) */
-    VLDMIANE  R0!, {D8 - D15}           /* pop FPU register s16~s31 */
-#endif
-
-    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 */
-
-#if defined (__VFP_FP__) && !defined(__SOFTFP__)
-    CMP     R3,  #0                     /* if(flag_r3 != 0) */
-    VLDMIANE  R0!, {D0 - D7}            /* pop FPU register s16~s31 */
-    LDMIANE   R0!, {R3}
-    VMSRNE    FPSCR,  R3
-#endif
-
-    /* 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-m7/lwp_iar.S

@@ -1,215 +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
-
-#if defined ( __ARMVFP__ )
-    TST       LR, #0x10
-    IT        EQ
-    VSTMDBEQ    R2!, {D8 - D15}
-#endif
-
-    STMFD   R2!, {R4 - R11}              ; push app R4-R11 to app stack , and R1 not change.
-
-#if defined ( __ARMVFP__ )
-    MOV     R4, #0x00               ; flag = 0
-    TST     LR, #0x10               ; if(!EXC_RETURN[4])
-    IT      EQ
-    MOVEQ   R4, #0x01               ; flag = 1
-    STMFD   R2!, {R4}               ; push flag
-#endif
-
-    ; 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}
-#if defined ( __ARMVFP__ )
-    TST     LR, #0x10
-    ITE     EQ
-    SUBEQ   R0, R1, #0x64               ; keep {R4 - R11}, {D8-D15}, FLAG
-    SUBNE   R0, R1, #0x24               ; keep {R4 - R11}, FLAG
-#else
-    SUB     R0, R1, #0x20               ; keep {R4 - R11}
-#endif
-    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
-
-#if defined ( __ARMVFP__ )
-    LDMFD   R0!, {R3}               ; pop flag
-#endif
-
-    LDMFD   R0!, {R4 - R11}         ; pop app {R4 - R11}
-
-#if defined ( __ARMVFP__ )
-    CMP     R3,  #0                 ; if(flag_r3 != 0)
-    IT      NE
-    VLDMIANE  R0!, {D8 - D15}       ; pop FPU register s16~s31
-#endif
-
-    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
-
-#if defined ( __ARMVFP__ )
-    CMP     R3,  #0                 ; if(flag_r3 != 0)
-    ITTT      NE
-    VLDMIANE  R0!, {D0 - D7}       ; pop FPU register s16~s31
-    LDMIANE   R0!, {R3}
-    VMSRNE    FPSCR,  R3
-#endif
-
-    ; 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-m7/lwp_rvds.S

@@ -1,218 +0,0 @@
-;/*
-; * 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
-
-    IF      {FPU} != "SoftVFP"
-    TST       LR, #0x10
-    VSTMFDEQ  R2!, {D8 - D15}
-    ENDIF
-
-    STMFD   R2!, {R4 - R11}              ; push app R4-R11 to app stack , and R1 not change.
-
-    IF      {FPU} != "SoftVFP"
-    MOV     R4, #0x00               ; flag = 0
-    TST     LR, #0x10               ; if(!EXC_RETURN[4])
-    MOVEQ   R4, #0x01               ; flag = 1
-    STMFD   R2!, {R4}               ; push flag
-    ENDIF
-
-    ; 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}
-    IF      {FPU} != "SoftVFP"
-    TST     LR, #0x10
-    SUBEQ   R0, R1, #0x64               ; keep {R4 - R11}, {D8-D15}, FLAG
-    SUBNE   R0, R1, #0x24               ; keep {R4 - R11}, FLAG
-    ELSE
-    SUB     R0, R1, #0x20               ; keep {R4 - R11}
-    ENDIF
-    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
-
-    IF      {FPU} != "SoftVFP"
-    LDMFD   R0!, {R3}               ; pop flag
-    ENDIF
-
-    LDMFD   R0!, {R4 - R11}         ; pop app {R4 - R11}
-
-    IF      {FPU} != "SoftVFP"
-    CMP     R3,  #0                 ; if(flag_r3 != 0)
-    VLDMFDNE  R0!, {D8 - D15}       ; pop FPU register s16~s31
-    ENDIF
-
-    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
-
-    IF      {FPU} != "SoftVFP"
-    CMP     R3,  #0                 ; if(flag_r3 != 0)
-    VLDMFDNE  R0!, {D0 - D7}       ; pop FPU register s16~s31
-    LDMFDNE   R0!, {R3}
-    VMSRNE    FPSCR,  R3
-
-    ENDIF
-
-    ; 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/lwp.c

@@ -1,398 +0,0 @@
-/*
- * File      : clock.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
- */
-
-#include <rtthread.h>
-#include <rthw.h>
-#include <dfs_posix.h>
-
-#ifndef RT_USING_DFS
-    #error  "lwp need file system(RT_USING_DFS)"
-#endif
-
-#include "lwp.h"
-
-#define DBG_ENABLE
-#define DBG_SECTION_NAME    "LWP"
-#define DBG_COLOR
-#define DBG_LEVEL           DBG_WARNING
-#include <rtdbg.h>
-
-extern rt_thread_t rt_current_thread;
-extern void lwp_user_entry(void *args, const void *text, void *data);
-
-/**
- * RT-Thread light-weight process
- */
-void lwp_set_kernel_sp(uint32_t *sp)
-{
-    struct rt_lwp *user_data;
-    user_data = (struct rt_lwp *)rt_current_thread->lwp;
-    user_data->kernel_sp = sp;
-}
-
-uint32_t *lwp_get_kernel_sp(void)
-{
-    struct rt_lwp *user_data;
-    user_data = (struct rt_lwp *)rt_current_thread->lwp;
-
-    return user_data->kernel_sp;
-}
-
-static int lwp_argscopy(struct rt_lwp *lwp, int argc, char **argv)
-{
-    int size = sizeof(int)*3; /* store argc, argv, NULL */
-    int *args;
-    char *str;
-    char **new_argv;
-    int i;
-    int len;
-
-    for (i = 0; i < argc; i ++)
-    {
-        size += (rt_strlen(argv[i]) + 1);
-    }
-    size  += (sizeof(int) * argc);
-
-    args = (int*)rt_malloc(size);
-    if (args == RT_NULL)
-        return -1;
-
-    str = (char*)((int)args + (argc + 3) * sizeof(int));
-    new_argv = (char**)&args[2];
-    args[0] = argc;
-    args[1] = (int)new_argv;
-
-    for (i = 0; i < argc; i ++)
-    {
-        len = rt_strlen(argv[i]) + 1;
-        new_argv[i] = str;
-        rt_memcpy(str, argv[i], len);
-        str += len;
-    }
-    new_argv[i] = 0;
-    lwp->args = args;
-
-    return 0;
-}
-
-static int lwp_load(const char *filename, struct rt_lwp *lwp, uint8_t *load_addr, size_t addr_size)
-{
-    int fd;
-    uint8_t *ptr;
-    int result = RT_EOK;
-    int nbytes;
-    struct lwp_header header;
-    struct lwp_chunk  chunk;
-
-    /* check file name */
-    RT_ASSERT(filename != RT_NULL);
-    /* check lwp control block */
-    RT_ASSERT(lwp != RT_NULL);
-
-    if (load_addr != RT_NULL)
-    {
-        lwp->lwp_type = LWP_TYPE_FIX_ADDR;
-        ptr = load_addr;
-    }
-    else
-    {
-        lwp->lwp_type = LWP_TYPE_DYN_ADDR;
-        ptr = RT_NULL;
-    }
-
-    /* open lwp */
-    fd = open(filename, 0, O_RDONLY);
-    if (fd < 0)
-    {
-        dbg_log(DBG_ERROR, "open file:%s failed!\n", filename);
-        result = -RT_ENOSYS;
-        goto _exit;
-    }
-
-    /* read lwp header */
-    nbytes = read(fd, &header, sizeof(struct lwp_header));
-    if (nbytes != sizeof(struct lwp_header))
-    {
-        dbg_log(DBG_ERROR, "read lwp header return error size: %d!\n", nbytes);
-        result = -RT_EIO;
-        goto _exit;
-    }
-
-    /* check file header */
-    if (header.magic != LWP_MAGIC)
-    {
-        dbg_log(DBG_ERROR, "erro header magic number: 0x%02X\n", header.magic);
-        result = -RT_EINVAL;
-        goto _exit;
-    }
-
-    /* read text chunk info */
-    nbytes = read(fd, &chunk, sizeof(struct lwp_chunk));
-    if (nbytes != sizeof(struct lwp_chunk))
-    {
-        dbg_log(DBG_ERROR, "read text chunk info failed!\n");
-        result = -RT_EIO;
-        goto _exit;
-    }
-
-    dbg_log(DBG_LOG, "chunk name: %s, total len %d, data %d, need space %d!\n",
-            "text", /*chunk.name*/ chunk.total_len, chunk.data_len, chunk.data_len_space);
-
-    /* load text */
-    {
-        lwp->text_size = RT_ALIGN(chunk.data_len_space, 4);
-        if (load_addr)
-            lwp->text_entry = ptr;
-        else
-        {
-#ifdef RT_USING_CACHE
-            lwp->text_entry = (rt_uint8_t *)rt_malloc_align(lwp->text_size, RT_CPU_CACHE_LINE_SZ);
-#else
-            lwp->text_entry = (rt_uint8_t *)rt_malloc(lwp->text_size);
-#endif
-
-            if (lwp->text_entry == RT_NULL)
-            {
-                dbg_log(DBG_ERROR, "alloc text memory faild!\n");
-                result = -RT_ENOMEM;
-                goto _exit;
-            }
-            else
-            {
-                dbg_log(DBG_LOG, "lwp text malloc : %p, size: %d!\n", lwp->text_entry, lwp->text_size);
-            }
-        }
-        dbg_log(DBG_INFO, "load text %d  => (0x%08x, 0x%08x)\n", lwp->text_size, (uint32_t)lwp->text_entry, (uint32_t)lwp->text_entry + lwp->text_size);
-
-        nbytes = read(fd, lwp->text_entry, chunk.data_len);
-        if (nbytes != chunk.data_len)
-        {
-            dbg_log(DBG_ERROR, "read text region from file failed!\n");
-            result = -RT_EIO;
-            goto _exit;
-        }
-#ifdef RT_USING_CACHE
-        else
-        {
-            rt_hw_cpu_dcache_ops(RT_HW_CACHE_FLUSH, lwp->text_entry, lwp->text_size);
-            rt_hw_cpu_icache_ops(RT_HW_CACHE_INVALIDATE, lwp->text_entry, lwp->text_size);
-        }
-#endif
-
-        if (ptr != RT_NULL) ptr += nbytes;
-
-        /* skip text hole */
-        if ((chunk.total_len - sizeof(struct lwp_chunk) - chunk.data_len))
-        {
-            dbg_log(DBG_LOG, "skip text hole %d!\n", (chunk.total_len - sizeof(struct lwp_chunk) - chunk.data_len));
-            lseek(fd, (chunk.total_len - sizeof(struct lwp_chunk) - chunk.data_len), SEEK_CUR);
-        }
-    }
-
-    /* load data */
-    nbytes = read(fd, &chunk, sizeof(struct lwp_chunk));
-    if (nbytes != sizeof(struct lwp_chunk))
-    {
-        dbg_log(DBG_ERROR, "read data chunk info failed!\n");
-        result = -RT_EIO;
-        goto _exit;
-    }
-
-    dbg_log(DBG_LOG, "chunk name: %s, total len %d, data %d, need space %d!\n",
-            chunk.name, chunk.total_len, chunk.data_len, chunk.data_len_space);
-
-    {
-        lwp->data_size = RT_ALIGN(chunk.data_len_space, 4);
-        if (load_addr)
-            lwp->data = ptr;
-        else
-        {
-            lwp->data = rt_malloc(lwp->data_size);
-            if (lwp->data == RT_NULL)
-            {
-                dbg_log(DBG_ERROR, "alloc data memory faild!\n");
-                result = -RT_ENOMEM;
-                goto _exit;
-            }
-            else
-            {
-                dbg_log(DBG_LOG, "lwp data malloc : %p, size: %d!\n", lwp->data, lwp->data_size);
-                rt_memset(lwp->data, 0, lwp->data_size);
-            }
-        }
-
-        dbg_log(DBG_INFO, "load data %d => (0x%08x, 0x%08x)\n", lwp->data_size, (uint32_t)lwp->data, (uint32_t)lwp->data + lwp->data_size);
-        nbytes = read(fd, lwp->data, chunk.data_len);
-        if (nbytes != chunk.data_len)
-        {
-            dbg_log(DBG_ERROR, "read data region from file failed!\n");
-            result = -RT_ERROR;
-            goto _exit;
-        }
-    }
-
-_exit:
-    if (fd >= 0)
-        close(fd);
-
-    if (result != RT_EOK)
-    {
-        if (lwp->lwp_type == LWP_TYPE_DYN_ADDR)
-        {
-            dbg_log(DBG_ERROR, "lwp dynamic load faild, %d\n", result);
-            if (lwp->text_entry)
-            {
-                dbg_log(DBG_LOG, "lwp text free: %p\n", lwp->text_entry);
-#ifdef RT_USING_CACHE
-                rt_free_align(lwp->text_entry);
-#else
-                rt_free(lwp->text_entry);
-#endif
-            }
-            if (lwp->data)
-            {
-                dbg_log(DBG_LOG, "lwp data free: %p\n", lwp->data);
-                rt_free(lwp->data);
-            }
-        }
-    }
-
-    return result;
-}
-
-static void lwp_cleanup(struct rt_thread *tid)
-{
-    struct rt_lwp *lwp;
-
-    dbg_log(DBG_INFO, "thread: %s, stack_addr: %08X\n", tid->name, tid->stack_addr);
-
-    lwp = (struct rt_lwp *)tid->lwp;
-
-    if (lwp->lwp_type == LWP_TYPE_DYN_ADDR)
-    {
-        dbg_log(DBG_INFO, "dynamic lwp\n");
-        if (lwp->text_entry)
-        {
-            dbg_log(DBG_LOG, "lwp text free: %p\n", lwp->text_entry);
-#ifdef RT_USING_CACHE
-            rt_free_align(lwp->text_entry);
-#else
-            rt_free(lwp->text_entry);
-#endif
-        }
-        if (lwp->data)
-        {
-            dbg_log(DBG_LOG, "lwp data free: %p\n", lwp->data);
-            rt_free(lwp->data);
-        }
-    }
-
-    dbg_log(DBG_LOG, "lwp free memory pages\n");
-    rt_lwp_mem_deinit(lwp);
-
-    /* cleanup fd table */
-    while (lwp->fdt.maxfd > 0)
-    {
-        lwp->fdt.maxfd --;
-        close(lwp->fdt.maxfd);
-    }
-    rt_free(lwp->fdt.fds);
-    rt_free(lwp->args);
-
-    dbg_log(DBG_LOG, "lwp free: %p\n", lwp);
-    rt_free(lwp);
-
-    /* TODO: cleanup fd table */
-}
-
-static void lwp_thread(void *parameter)
-{
-    rt_thread_t tid;
-    struct rt_lwp *lwp;
-
-    lwp = (struct rt_lwp *)parameter;
-    rt_lwp_mem_init(lwp);
-    tid = rt_thread_self();
-    tid->lwp = lwp;
-    tid->cleanup = lwp_cleanup;
-
-    lwp_user_entry(lwp->args, lwp->text_entry, lwp->data);
-}
-
-struct rt_lwp *rt_lwp_self(void)
-{
-    return (struct rt_lwp *)rt_thread_self()->lwp;
-}
-
-int exec(char *filename, int argc, char **argv)
-{
-    struct rt_lwp *lwp;
-    int result;
-
-    if (filename == RT_NULL)
-        return -RT_ERROR;
-
-    lwp = (struct rt_lwp *)rt_malloc(sizeof(struct rt_lwp));
-    if (lwp == RT_NULL)
-    {
-        dbg_log(DBG_ERROR, "lwp struct out of memory!\n");
-        return -RT_ENOMEM;
-    }
-    dbg_log(DBG_INFO, "lwp malloc : %p, size: %d!\n", lwp, sizeof(struct rt_lwp));
-
-    rt_memset(lwp, 0, sizeof(*lwp));
-    if (lwp_argscopy(lwp, argc, argv) != 0)
-    {
-        rt_free(lwp);
-        return -ENOMEM;
-    }
-
-    result = lwp_load(filename, lwp, RT_NULL, 0);
-    if (result == RT_EOK)
-    {
-        rt_thread_t tid;
-
-        tid = rt_thread_create("user", lwp_thread, (void *)lwp,
-                               1024 * 4, 2, 200);
-        if (tid != RT_NULL)
-        {
-            dbg_log(DBG_LOG, "lwp kernel => (0x%08x, 0x%08x)\n", (rt_uint32_t)tid->stack_addr, (rt_uint32_t)tid->stack_addr + tid->stack_size);
-            rt_thread_startup(tid);
-            return RT_EOK;
-        }
-        else
-        {
-#ifdef RT_USING_CACHE
-            rt_free_align(lwp->text_entry);
-#else
-            rt_free(lwp->text_entry);
-#endif
-            rt_free(lwp->data);
-        }
-    }
-
-    rt_free(lwp->args);
-    rt_free(lwp);
-
-    return -RT_ERROR;
-}

components/lwp/lwp.h

@@ -1,84 +0,0 @@
-/*
- * 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

@@ -1,236 +0,0 @@
-/*
- * File      : lwp_mem.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2012, 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
- * 2018-03-24     Tanek        the first version
- */
-
-#include <rtthread.h>
-#include <lwp.h>
-
-#define DBG_ENABLE
-#define DBG_SECTION_NAME    "LWPMEM"
-#define DBG_COLOR
-#define DBG_LEVEL           DBG_WARNING
-#include <rtdbg.h>
-
-// todo: remove repleat code
-#define RT_MEMHEAP_SIZE         RT_ALIGN(sizeof(struct rt_lwp_memheap_item), RT_ALIGN_SIZE)
-#define MEMITEM_SIZE(item)      ((rt_uint32_t)item->next - (rt_uint32_t)item - RT_MEMHEAP_SIZE)
-
-#ifndef LWP_MEM_PAGE_SIZE
-    #define LWP_MEM_PAGE_SIZE       (4 * 1024)
-#endif
-
-#ifndef LWP_MEM_MAX_PAGE_COUNT
-    #define LWP_MEM_MAX_PAGE_COUNT  (256 * 4)
-#endif
-
-static void *rt_lwp_malloc_page(struct rt_lwp *lwp, rt_size_t npages)
-{
-    void *chunk;
-    char name[6];
-    struct rt_lwp_memheap *lwp_heap;
-    rt_size_t page_cnt;
-
-    RT_ASSERT(lwp != RT_NULL);
-
-    page_cnt = lwp->heap_cnt + npages;
-    if (page_cnt > LWP_MEM_MAX_PAGE_COUNT)
-    {
-        dbg_log(DBG_ERROR, "alloc new page failed, lwp memory size out of limited: %d\n", page_cnt);
-        return RT_NULL;
-    }
-
-    lwp_heap = rt_malloc(sizeof(struct rt_lwp_memheap));
-    if (lwp_heap == RT_NULL)
-    {
-        dbg_log(DBG_ERROR, "alloc new page head failed, out of memory : %d\n", page_cnt);
-        return RT_NULL;
-    }
-
-    chunk = rt_malloc(npages * LWP_MEM_PAGE_SIZE);
-    if (chunk == RT_NULL)
-    {
-        dbg_log(DBG_ERROR, "alloc new page buffer failed, out of memory : %d\n", page_cnt);
-        rt_free(lwp_heap);
-        return RT_NULL;
-    }
-
-    dbg_log(DBG_LOG, "lwp alloc page: %d\n", npages);
-
-    rt_sprintf(name, "lwp%02x", lwp->heap_cnt);
-    rt_lwp_memheap_init(lwp_heap, name, chunk, npages * LWP_MEM_PAGE_SIZE);
-
-    rt_list_insert_before(&lwp->hlist, &lwp_heap->mlist);
-
-    lwp->heap_cnt += npages;
-
-    return chunk;
-}
-
-static void rt_lwp_free_page(struct rt_lwp *lwp, struct rt_lwp_memheap *lwp_heap)
-{
-    rt_size_t npages;
-
-    RT_ASSERT(lwp != RT_NULL);
-    RT_ASSERT(lwp_heap != RT_NULL);
-    RT_ASSERT(lwp_heap->start_addr != RT_NULL);
-
-    npages = lwp_heap->pool_size / LWP_MEM_PAGE_SIZE;
-    lwp->heap_cnt -= npages;
-
-    dbg_log(DBG_LOG, "lwp free page: %d\n", npages);
-
-    rt_list_remove(&lwp_heap->mlist);
-
-    rt_free(lwp_heap->start_addr);
-    rt_free(lwp_heap);
-}
-
-void rt_lwp_mem_init(struct rt_lwp *lwp)
-{
-    RT_ASSERT(lwp != RT_NULL);
-    rt_list_init(&lwp->hlist);
-}
-
-void rt_lwp_mem_deinit(struct rt_lwp *lwp)
-{
-    struct rt_list_node *node;
-    
-    RT_ASSERT(lwp != RT_NULL);
-
-    node = lwp->hlist.next;
-
-    while (node != &(lwp->hlist))
-    {
-        struct rt_lwp_memheap *lwp_heap;
-
-        lwp_heap = rt_list_entry(node, struct rt_lwp_memheap, mlist);
-        RT_ASSERT(lwp_heap != RT_NULL);
-
-        /* update note before free page*/
-        node = node->next;
-
-        rt_lwp_free_page(lwp, lwp_heap);
-    }
-}
-
-void *rt_lwp_mem_malloc(rt_uint32_t size)
-{
-    struct rt_lwp *lwp;
-    struct rt_list_node *node;
-    void *addr = RT_NULL;
-    rt_uint32_t npages;
-
-    if (size == 0)
-        return RT_NULL;
-
-    lwp = rt_lwp_self();
-    RT_ASSERT(lwp != RT_NULL);
-
-    for (node  = lwp->hlist.next; node != &(lwp->hlist); node = node->next)
-    {
-        struct rt_lwp_memheap *lwp_heap;
-        lwp_heap = rt_list_entry(node, struct rt_lwp_memheap, mlist);
-
-        addr = rt_lwp_memheap_alloc(lwp_heap, size);
-        if (addr != RT_NULL)
-        {
-            dbg_log(DBG_LOG, "lwp alloc 0x%x/%d\n", addr, size);
-            return addr;
-        }
-    }
-
-    npages = (size + rt_lwp_memheap_unavailable_size_get() + LWP_MEM_PAGE_SIZE) / LWP_MEM_PAGE_SIZE;
-    if (RT_NULL != rt_lwp_malloc_page(lwp, npages))
-        return rt_lwp_mem_malloc(size);
-    else
-        return RT_NULL;
-}
-
-void rt_lwp_mem_free(void *addr)
-{
-    struct rt_lwp_memheap_item *header_ptr;
-    struct rt_lwp_memheap *lwp_heap;
-
-    if (addr == RT_NULL)
-        return ;
-
-    /* get memory item */
-    header_ptr = (struct rt_lwp_memheap_item *)((rt_uint8_t *)addr - RT_MEMHEAP_SIZE);
-    RT_ASSERT(header_ptr);
-    
-    lwp_heap = header_ptr->pool_ptr;
-    RT_ASSERT(lwp_heap);
-
-    dbg_log(DBG_LOG, "lwp free 0x%x\n", addr);
-    rt_lwp_memheap_free((void *)addr);
-
-    if (rt_lwp_memheap_is_empty(lwp_heap))
-    {
-        rt_lwp_free_page(rt_lwp_self(), lwp_heap);
-    }
-}
-
-void *rt_lwp_mem_realloc(void *rmem, rt_size_t newsize)
-{
-    void *new_ptr;
-    struct rt_lwp_memheap_item *header_ptr;
-
-    if (rmem == RT_NULL)
-        return rt_lwp_mem_malloc(newsize);
-
-    if (newsize == 0)
-    {
-        rt_lwp_mem_free(rmem);
-        return RT_NULL;
-    }
-
-    /* get old memory item */
-    header_ptr = (struct rt_lwp_memheap_item *)
-                 ((rt_uint8_t *)rmem - RT_MEMHEAP_SIZE);
-
-    new_ptr = rt_lwp_memheap_realloc(header_ptr->pool_ptr, rmem, newsize);
-    if (new_ptr == RT_NULL)
-    {
-        /* allocate memory block from other memheap */
-        new_ptr = rt_lwp_mem_malloc(newsize);
-        if (new_ptr != RT_NULL && rmem != RT_NULL)
-        {
-            rt_size_t oldsize;
-
-            /* get the size of old memory block */
-            oldsize = MEMITEM_SIZE(header_ptr);
-            if (newsize > oldsize)
-                rt_memcpy(new_ptr, rmem, oldsize);
-            else
-                rt_memcpy(new_ptr, rmem, newsize);
-
-            dbg_log(DBG_LOG, "lwp realloc with memcpy 0x%x -> 0x%x/%d\n", rmem, new_ptr, newsize);
-            rt_lwp_mem_free(rmem);
-
-        }
-    }
-
-    dbg_log(DBG_LOG, "lwp realloc in same address 0x%x/%d\n", rmem, newsize);
-
-    return new_ptr;
-}

components/lwp/lwp_mem.h

@@ -1,34 +0,0 @@
-/*
- * 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

@@ -1,590 +0,0 @@
-/*
- * File      : lwp_memheap.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2012, 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
- * 2012-04-10     Bernard      first implementation
- * 2012-10-16     Bernard      add the mutex lock for heap object.
- * 2012-12-29     Bernard      memheap can be used as system heap.
- *                             change mutex lock to semaphore lock.
- * 2013-04-10     Bernard      add rt_lwp_memheap_realloc function.
- * 2013-05-24     Bernard      fix the rt_lwp_memheap_realloc issue.
- * 2013-07-11     Grissiom     fix the memory block splitting issue.
- * 2013-07-15     Grissiom     optimize rt_lwp_memheap_realloc
- */
-
-#include <rthw.h>
-#include <rtthread.h>
-#include <lwp.h>
-
-/* dynamic pool magic and mask */
-#define RT_MEMHEAP_MAGIC        0x1ea01ea0
-#define RT_MEMHEAP_MASK         0xfffffffe
-#define RT_MEMHEAP_USED         0x01
-#define RT_MEMHEAP_FREED        0x00
-
-#define RT_MEMHEAP_IS_USED(i)   ((i)->magic & RT_MEMHEAP_USED)
-#define RT_MEMHEAP_MINIALLOC    12
-
-#define RT_MEMHEAP_SIZE         RT_ALIGN(sizeof(struct rt_lwp_memheap_item), RT_ALIGN_SIZE)
-#define MEMITEM_SIZE(item)      ((rt_uint32_t)item->next - (rt_uint32_t)item - RT_MEMHEAP_SIZE)
-
-/*
- * The initialized memory pool will be:
- * +-----------------------------------+--------------------------+
- * | whole freed memory block          | Used Memory Block Tailer |
- * +-----------------------------------+--------------------------+
- *
- * block_list --> whole freed memory block
- *
- * The length of Used Memory Block Tailer is 0,
- * which is prevents block merging across list
- */
-rt_err_t rt_lwp_memheap_init(struct rt_lwp_memheap *memheap,
-                         const char        *name,
-                         void              *start_addr,
-                         rt_uint32_t        size)
-{
-    struct rt_lwp_memheap_item *item;
-
-    RT_ASSERT(memheap != RT_NULL);
-
-    /* initialize pool object */
-    memheap->start_addr     = start_addr;
-    memheap->pool_size      = RT_ALIGN_DOWN(size, RT_ALIGN_SIZE);
-    memheap->available_size = memheap->pool_size - (2 * RT_MEMHEAP_SIZE);
-    memheap->max_used_size  = memheap->pool_size - memheap->available_size;
-
-    /* initialize the free list header */
-    item            = &(memheap->free_header);
-    item->magic     = RT_MEMHEAP_MAGIC;
-    item->pool_ptr  = memheap;
-    item->next      = RT_NULL;
-    item->prev      = RT_NULL;
-    item->next_free = item;
-    item->prev_free = item;
-
-    /* set the free list to free list header */
-    memheap->free_list = item;
-
-    /* initialize the first big memory block */
-    item            = (struct rt_lwp_memheap_item *)start_addr;
-    item->magic     = RT_MEMHEAP_MAGIC;
-    item->pool_ptr  = memheap;
-    item->next      = RT_NULL;
-    item->prev      = RT_NULL;
-    item->next_free = item;
-    item->prev_free = item;
-
-    item->next = (struct rt_lwp_memheap_item *)
-                 ((rt_uint8_t *)item + memheap->available_size + RT_MEMHEAP_SIZE);
-    item->prev = item->next;
-
-    /* block list header */
-    memheap->block_list = item;
-
-    /* place the big memory block to free list */
-    item->next_free = memheap->free_list->next_free;
-    item->prev_free = memheap->free_list;
-    memheap->free_list->next_free->prev_free = item;
-    memheap->free_list->next_free            = item;
-
-    /* move to the end of memory pool to build a small tailer block,
-     * which prevents block merging
-     */
-    item = item->next;
-    /* it's a used memory block */
-    item->magic     = RT_MEMHEAP_MAGIC | RT_MEMHEAP_USED;
-    item->pool_ptr  = memheap;
-    item->next      = (struct rt_lwp_memheap_item *)start_addr;
-    item->prev      = (struct rt_lwp_memheap_item *)start_addr;
-    /* not in free list */
-    item->next_free = item->prev_free = RT_NULL;
-
-    /* initialize semaphore lock */
-    rt_sem_init(&(memheap->lock), name, 1, RT_IPC_FLAG_FIFO);
-
-    RT_DEBUG_LOG(RT_DEBUG_MEMHEAP,
-                 ("memory heap: start addr 0x%08x, size %d, free list header 0x%08x\n",
-                  start_addr, size, &(memheap->free_header)));
-
-    return RT_EOK;
-}
-
-void *rt_lwp_memheap_alloc(struct rt_lwp_memheap *heap, rt_uint32_t size)
-{
-    rt_err_t result;
-    rt_uint32_t free_size;
-    struct rt_lwp_memheap_item *header_ptr;
-
-    RT_ASSERT(heap != RT_NULL);
-
-    /* align allocated size */
-    size = RT_ALIGN(size, RT_ALIGN_SIZE);
-    if (size < RT_MEMHEAP_MINIALLOC)
-        size = RT_MEMHEAP_MINIALLOC;
-
-    RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("allocate %d on heap:%8.*s",
-                                    size, RT_NAME_MAX, heap->parent.name));
-
-    if (size < heap->available_size)
-    {
-        /* search on free list */
-        free_size = 0;
-
-        /* lock memheap */
-        result = rt_sem_take(&(heap->lock), RT_WAITING_FOREVER);
-        if (result != RT_EOK)
-        {
-            rt_set_errno(result);
-
-            return RT_NULL;
-        }
-
-        /* get the first free memory block */
-        header_ptr = heap->free_list->next_free;
-        while (header_ptr != heap->free_list && free_size < size)
-        {
-            /* get current freed memory block size */
-            free_size = MEMITEM_SIZE(header_ptr);
-            if (free_size < size)
-            {
-                /* move to next free memory block */
-                header_ptr = header_ptr->next_free;
-            }
-        }
-
-        /* determine if the memory is available. */
-        if (free_size >= size)
-        {
-            /* a block that satisfies the request has been found. */
-
-            /* determine if the block needs to be split. */
-            if (free_size >= (size + RT_MEMHEAP_SIZE + RT_MEMHEAP_MINIALLOC))
-            {
-                struct rt_lwp_memheap_item *new_ptr;
-
-                /* split the block. */
-                new_ptr = (struct rt_lwp_memheap_item *)
-                          (((rt_uint8_t *)header_ptr) + size + RT_MEMHEAP_SIZE);
-
-                RT_DEBUG_LOG(RT_DEBUG_MEMHEAP,
-                             ("split: block[0x%08x] nextm[0x%08x] prevm[0x%08x] to new[0x%08x]\n",
-                              header_ptr,
-                              header_ptr->next,
-                              header_ptr->prev,
-                              new_ptr));
-
-                /* mark the new block as a memory block and freed. */
-                new_ptr->magic = RT_MEMHEAP_MAGIC;
-
-                /* put the pool pointer into the new block. */
-                new_ptr->pool_ptr = heap;
-
-                /* break down the block list */
-                new_ptr->prev          = header_ptr;
-                new_ptr->next          = header_ptr->next;
-                header_ptr->next->prev = new_ptr;
-                header_ptr->next       = new_ptr;
-
-                /* remove header ptr from free list */
-                header_ptr->next_free->prev_free = header_ptr->prev_free;
-                header_ptr->prev_free->next_free = header_ptr->next_free;
-                header_ptr->next_free = RT_NULL;
-                header_ptr->prev_free = RT_NULL;
-
-                /* insert new_ptr to free list */
-                new_ptr->next_free = heap->free_list->next_free;
-                new_ptr->prev_free = heap->free_list;
-                heap->free_list->next_free->prev_free = new_ptr;
-                heap->free_list->next_free            = new_ptr;
-                RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("new ptr: next_free 0x%08x, prev_free 0x%08x\n",
-                                                new_ptr->next_free,
-                                                new_ptr->prev_free));
-
-                /* decrement the available byte count.  */
-                heap->available_size = heap->available_size -
-                                       size -
-                                       RT_MEMHEAP_SIZE;
-                if (heap->pool_size - heap->available_size > heap->max_used_size)
-                    heap->max_used_size = heap->pool_size - heap->available_size;
-            }
-            else
-            {
-                /* decrement the entire free size from the available bytes count. */
-                heap->available_size = heap->available_size - free_size;
-                if (heap->pool_size - heap->available_size > heap->max_used_size)
-                    heap->max_used_size = heap->pool_size - heap->available_size;
-
-                /* remove header_ptr from free list */
-                RT_DEBUG_LOG(RT_DEBUG_MEMHEAP,
-                             ("one block: block[0x%08x], next_free 0x%08x, prev_free 0x%08x\n",
-                              header_ptr,
-                              header_ptr->next_free,
-                              header_ptr->prev_free));
-
-                header_ptr->next_free->prev_free = header_ptr->prev_free;
-                header_ptr->prev_free->next_free = header_ptr->next_free;
-                header_ptr->next_free = RT_NULL;
-                header_ptr->prev_free = RT_NULL;
-            }
-
-            /* Mark the allocated block as not available. */
-            header_ptr->magic |= RT_MEMHEAP_USED;
-
-            /* release lock */
-            rt_sem_release(&(heap->lock));
-
-            /* Return a memory address to the caller.  */
-            RT_DEBUG_LOG(RT_DEBUG_MEMHEAP,
-                         ("alloc mem: memory[0x%08x], heap[0x%08x], size: %d\n",
-                          (void *)((rt_uint8_t *)header_ptr + RT_MEMHEAP_SIZE),
-                          header_ptr,
-                          size));
-
-            return (void *)((rt_uint8_t *)header_ptr + RT_MEMHEAP_SIZE);
-        }
-
-        /* release lock */
-        rt_sem_release(&(heap->lock));
-    }
-
-    RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("allocate memory: failed\n"));
-
-    /* Return the completion status.  */
-    return RT_NULL;
-}
-
-void *rt_lwp_memheap_realloc(struct rt_lwp_memheap *heap, void *ptr, rt_size_t newsize)
-{
-    rt_err_t result;
-    rt_size_t oldsize;
-    struct rt_lwp_memheap_item *header_ptr;
-    struct rt_lwp_memheap_item *new_ptr;
-
-    if (newsize == 0)
-    {
-        rt_lwp_memheap_free(ptr);
-
-        return RT_NULL;
-    }
-    /* align allocated size */
-    newsize = RT_ALIGN(newsize, RT_ALIGN_SIZE);
-    if (newsize < RT_MEMHEAP_MINIALLOC)
-        newsize = RT_MEMHEAP_MINIALLOC;
-
-    if (ptr == RT_NULL)
-    {
-        return rt_lwp_memheap_alloc(heap, newsize);
-    }
-
-    /* get memory block header and get the size of memory block */
-    header_ptr = (struct rt_lwp_memheap_item *)
-                 ((rt_uint8_t *)ptr - RT_MEMHEAP_SIZE);
-    oldsize = MEMITEM_SIZE(header_ptr);
-    /* re-allocate memory */
-    if (newsize > oldsize)
-    {
-        void *new_ptr;
-        struct rt_lwp_memheap_item *next_ptr;
-
-        /* lock memheap */
-        result = rt_sem_take(&(heap->lock), RT_WAITING_FOREVER);
-        if (result != RT_EOK)
-        {
-            rt_set_errno(result);
-            return RT_NULL;
-        }
-
-        next_ptr = header_ptr->next;
-
-        /* header_ptr should not be the tail */
-        RT_ASSERT(next_ptr > header_ptr);
-
-        /* check whether the following free space is enough to expand */
-        if (!RT_MEMHEAP_IS_USED(next_ptr))
-        {
-            rt_int32_t nextsize;
-
-            nextsize = MEMITEM_SIZE(next_ptr);
-            RT_ASSERT(next_ptr > 0);
-
-            /* Here is the ASCII art of the situation that we can make use of
-             * the next free node without alloc/memcpy, |*| is the control
-             * block:
-             *
-             *      oldsize           free node
-             * |*|-----------|*|----------------------|*|
-             *         newsize          >= minialloc
-             * |*|----------------|*|-----------------|*|
-             */
-            if (nextsize + oldsize > newsize + RT_MEMHEAP_MINIALLOC)
-            {
-                /* decrement the entire free size from the available bytes count. */
-                heap->available_size = heap->available_size - (newsize - oldsize);
-                if (heap->pool_size - heap->available_size > heap->max_used_size)
-                    heap->max_used_size = heap->pool_size - heap->available_size;
-
-                /* remove next_ptr from free list */
-                RT_DEBUG_LOG(RT_DEBUG_MEMHEAP,
-                             ("remove block: block[0x%08x], next_free 0x%08x, prev_free 0x%08x",
-                              next_ptr,
-                              next_ptr->next_free,
-                              next_ptr->prev_free));
-
-                next_ptr->next_free->prev_free = next_ptr->prev_free;
-                next_ptr->prev_free->next_free = next_ptr->next_free;
-                next_ptr->next->prev = next_ptr->prev;
-                next_ptr->prev->next = next_ptr->next;
-
-                /* build a new one on the right place */
-                next_ptr = (struct rt_lwp_memheap_item *)((char *)ptr + newsize);
-
-                RT_DEBUG_LOG(RT_DEBUG_MEMHEAP,
-                             ("new free block: block[0x%08x] nextm[0x%08x] prevm[0x%08x]",
-                              next_ptr,
-                              next_ptr->next,
-                              next_ptr->prev));
-
-                /* mark the new block as a memory block and freed. */
-                next_ptr->magic = RT_MEMHEAP_MAGIC;
-
-                /* put the pool pointer into the new block. */
-                next_ptr->pool_ptr = heap;
-
-                next_ptr->prev          = header_ptr;
-                next_ptr->next          = header_ptr->next;
-                header_ptr->next->prev = next_ptr;
-                header_ptr->next       = next_ptr;
-
-                /* insert next_ptr to free list */
-                next_ptr->next_free = heap->free_list->next_free;
-                next_ptr->prev_free = heap->free_list;
-                heap->free_list->next_free->prev_free = next_ptr;
-                heap->free_list->next_free            = next_ptr;
-                RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("new ptr: next_free 0x%08x, prev_free 0x%08x",
-                                                next_ptr->next_free,
-                                                next_ptr->prev_free));
-
-                /* release lock */
-                rt_sem_release(&(heap->lock));
-
-                return ptr;
-            }
-        }
-
-        /* release lock */
-        rt_sem_release(&(heap->lock));
-
-        /* re-allocate a memory block */
-        new_ptr = (void *)rt_lwp_memheap_alloc(heap, newsize);
-        if (new_ptr != RT_NULL)
-        {
-            rt_memcpy(new_ptr, ptr, oldsize < newsize ? oldsize : newsize);
-            rt_lwp_memheap_free(ptr);
-        }
-
-        return new_ptr;
-    }
-
-    /* don't split when there is less than one node space left */
-    if (newsize + RT_MEMHEAP_SIZE + RT_MEMHEAP_MINIALLOC >= oldsize)
-        return ptr;
-
-    /* lock memheap */
-    result = rt_sem_take(&(heap->lock), RT_WAITING_FOREVER);
-    if (result != RT_EOK)
-    {
-        rt_set_errno(result);
-
-        return RT_NULL;
-    }
-
-    /* split the block. */
-    new_ptr = (struct rt_lwp_memheap_item *)
-              (((rt_uint8_t *)header_ptr) + newsize + RT_MEMHEAP_SIZE);
-
-    RT_DEBUG_LOG(RT_DEBUG_MEMHEAP,
-                 ("split: block[0x%08x] nextm[0x%08x] prevm[0x%08x] to new[0x%08x]\n",
-                  header_ptr,
-                  header_ptr->next,
-                  header_ptr->prev,
-                  new_ptr));
-
-    /* mark the new block as a memory block and freed. */
-    new_ptr->magic = RT_MEMHEAP_MAGIC;
-    /* put the pool pointer into the new block. */
-    new_ptr->pool_ptr = heap;
-
-    /* break down the block list */
-    new_ptr->prev          = header_ptr;
-    new_ptr->next          = header_ptr->next;
-    header_ptr->next->prev = new_ptr;
-    header_ptr->next       = new_ptr;
-
-    /* determine if the block can be merged with the next neighbor. */
-    if (!RT_MEMHEAP_IS_USED(new_ptr->next))
-    {
-        struct rt_lwp_memheap_item *free_ptr;
-
-        /* merge block with next neighbor. */
-        free_ptr = new_ptr->next;
-        heap->available_size = heap->available_size - MEMITEM_SIZE(free_ptr);
-
-        RT_DEBUG_LOG(RT_DEBUG_MEMHEAP,
-                     ("merge: right node 0x%08x, next_free 0x%08x, prev_free 0x%08x\n",
-                      header_ptr, header_ptr->next_free, header_ptr->prev_free));
-
-        free_ptr->next->prev = new_ptr;
-        new_ptr->next   = free_ptr->next;
-
-        /* remove free ptr from free list */
-        free_ptr->next_free->prev_free = free_ptr->prev_free;
-        free_ptr->prev_free->next_free = free_ptr->next_free;
-    }
-
-    /* insert the split block to free list */
-    new_ptr->next_free = heap->free_list->next_free;
-    new_ptr->prev_free = heap->free_list;
-    heap->free_list->next_free->prev_free = new_ptr;
-    heap->free_list->next_free            = new_ptr;
-    RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("new free ptr: next_free 0x%08x, prev_free 0x%08x\n",
-                                    new_ptr->next_free,
-                                    new_ptr->prev_free));
-
-    /* increment the available byte count.  */
-    heap->available_size = heap->available_size + MEMITEM_SIZE(new_ptr);
-
-    /* release lock */
-    rt_sem_release(&(heap->lock));
-
-    /* return the old memory block */
-    return ptr;
-}
-
-void rt_lwp_memheap_free(void *ptr)
-{
-    rt_err_t result;
-    struct rt_lwp_memheap *heap;
-    struct rt_lwp_memheap_item *header_ptr, *new_ptr;
-    rt_uint32_t insert_header;
-
-    /* NULL check */
-    if (ptr == RT_NULL) return;
-
-    /* set initial status as OK */
-    insert_header = 1;
-    new_ptr       = RT_NULL;
-    header_ptr    = (struct rt_lwp_memheap_item *)
-                    ((rt_uint8_t *)ptr - RT_MEMHEAP_SIZE);
-
-    RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("free memory: memory[0x%08x], block[0x%08x]\n",
-                                    ptr, header_ptr));
-
-    /* check magic */
-    RT_ASSERT((header_ptr->magic & RT_MEMHEAP_MASK) == RT_MEMHEAP_MAGIC);
-    RT_ASSERT(header_ptr->magic & RT_MEMHEAP_USED);
-    /* check whether this block of memory has been over-written. */
-    RT_ASSERT((header_ptr->next->magic & RT_MEMHEAP_MASK) == RT_MEMHEAP_MAGIC);
-
-    /* get pool ptr */
-    heap = header_ptr->pool_ptr;
-
-    /* lock memheap */
-    result = rt_sem_take(&(heap->lock), RT_WAITING_FOREVER);
-    if (result != RT_EOK)
-    {
-        rt_set_errno(result);
-
-        return ;
-    }
-
-    /* Mark the memory as available. */
-    header_ptr->magic &= ~RT_MEMHEAP_USED;
-    /* Adjust the available number of bytes. */
-    heap->available_size = heap->available_size + MEMITEM_SIZE(header_ptr);
-
-    /* Determine if the block can be merged with the previous neighbor. */
-    if (!RT_MEMHEAP_IS_USED(header_ptr->prev))
-    {
-        RT_DEBUG_LOG(RT_DEBUG_MEMHEAP, ("merge: left node 0x%08x\n",
-                                        header_ptr->prev));
-
-        /* adjust the available number of bytes. */
-        heap->available_size = heap->available_size + RT_MEMHEAP_SIZE;
-
-        /* yes, merge block with previous neighbor. */
-        (header_ptr->prev)->next = header_ptr->next;
-        (header_ptr->next)->prev = header_ptr->prev;
-
-        /* move header pointer to previous. */
-        header_ptr = header_ptr->prev;
-        /* don't insert header to free list */
-        insert_header = 0;
-    }
-
-    /* determine if the block can be merged with the next neighbor. */
-    if (!RT_MEMHEAP_IS_USED(header_ptr->next))
-    {
-        /* adjust the available number of bytes. */
-        heap->available_size = heap->available_size + RT_MEMHEAP_SIZE;
-
-        /* merge block with next neighbor. */
-        new_ptr = header_ptr->next;
-
-        RT_DEBUG_LOG(RT_DEBUG_MEMHEAP,
-                     ("merge: right node 0x%08x, next_free 0x%08x, prev_free 0x%08x\n",
-                      new_ptr, new_ptr->next_free, new_ptr->prev_free));
-
-        new_ptr->next->prev = header_ptr;
-        header_ptr->next    = new_ptr->next;
-
-        /* remove new ptr from free list */
-        new_ptr->next_free->prev_free = new_ptr->prev_free;
-        new_ptr->prev_free->next_free = new_ptr->next_free;
-    }
-
-    if (insert_header)
-    {
-        /* no left merge, insert to free list */
-        header_ptr->next_free = heap->free_list->next_free;
-        header_ptr->prev_free = heap->free_list;
-        heap->free_list->next_free->prev_free = header_ptr;
-        heap->free_list->next_free            = header_ptr;
-
-        RT_DEBUG_LOG(RT_DEBUG_MEMHEAP,
-                     ("insert to free list: next_free 0x%08x, prev_free 0x%08x\n",
-                      header_ptr->next_free, header_ptr->prev_free));
-    }
-
-    /* release lock */
-    rt_sem_release(&(heap->lock));
-}
-
-rt_bool_t rt_lwp_memheap_is_empty(struct rt_lwp_memheap *memheap)
-{
-    RT_ASSERT(memheap != RT_NULL);
-
-    return (memheap->available_size + 2 * sizeof(struct rt_lwp_memheap_item)) == memheap->pool_size;
-}
-
-rt_bool_t rt_lwp_memheap_unavailable_size_get(void)
-{
-    return 2 * RT_MEMHEAP_SIZE + 3;
-}

components/lwp/lwp_memheap.h

@@ -1,74 +0,0 @@
-/*
- * 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

@@ -1,283 +0,0 @@
-/*
- * File      : lwp_syscall.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
- */
-
-/* RT-Thread System call */
-#include <lwp.h>
-#include <lwp_mem.h>
-#include <lwp_syscall.h>
-
-#include <dfs_poll.h>
-#include <dfs_select.h>
-
-#if (defined(RT_USING_SAL) && defined(SAL_USING_POSIX))
-#include <sys/socket.h>
-
-#define SYSCALL_NET(f) (f)
-#else
-#define SYSCALL_NET(f) (sys_notimpl)
-#endif
-
-#define DBG_ENABLE
-#define DBG_SECTION_NAME    "LWP_CALL"
-#define DBG_COLOR
-#define DBG_LEVEL           DBG_WARNING
-#include <rtdbg.h>
-
-/* thread/process */
-void sys_exit(int value)
-{
-    /* TODO: handle the return_value */
-
-    dbg_log(DBG_LOG, "enter sys_exit\n");
-
-    rt_thread_delete(rt_thread_self());
-
-    rt_schedule();
-
-    return;
-}
-
-/* syscall: "read" ret: "ssize_t" args: "int" "void *" "size_t" */
-ssize_t sys_read(int fd, void *buf, size_t nbyte)
-{
-    return read(fd, buf, nbyte);
-}
-
-/* syscall: "write" ret: "ssize_t" args: "int" "const void *" "size_t" */
-ssize_t sys_write(int fd, const void *buf, size_t nbyte)
-{
-    return write(fd, buf, nbyte);
-}
-
-/* syscall: "lseek" ret: "off_t" args: "int" "off_t" "int" */
-off_t sys_lseek(int fd, off_t offset, int whence)
-{
-    return lseek(fd, offset, whence);
-}
-
-/* syscall: "open" ret: "int" args: "const char *" "int" "..." */
-int sys_open(const char *name, int mode, ...)
-{
-    return open(name, mode, 0);
-}
-
-/* syscall: "close" ret: "int" args: "int" */
-int sys_close(int fd)
-{
-    return close(fd);
-}
-
-/* syscall: "ioctl" ret: "int" args: "int" "u_long" "..." */
-int sys_ioctl(int fd, unsigned long cmd, void* data)
-{
-    return ioctl(fd, cmd, data);
-}
-
-/* syscall: "nanosleep" ret: "int" args: "const struct timespec *" "struct timespec *" */
-int sys_nanosleep(const struct timespec *rqtp, struct timespec *rmtp)
-{
-    rt_tick_t tick;
-
-    dbg_log(DBG_LOG, "sys_nanosleep\n");
-
-    tick = rqtp->tv_sec * RT_TICK_PER_SECOND + (rqtp->tv_nsec * RT_TICK_PER_SECOND)/ 1000000000;
-    rt_thread_delay(tick);
-
-    if (rmtp)
-    {
-        tick = rt_tick_get() - tick;
-        /* get the passed time */
-        rmtp->tv_sec = tick/RT_TICK_PER_SECOND;
-        rmtp->tv_nsec = (tick%RT_TICK_PER_SECOND) * (1000000000/RT_TICK_PER_SECOND);
-    }
-
-    return 0;
-}
-
-/* syscall: "getpriority" ret: "int" args: "int" "id_t" */
-int sys_getpriority(int which, id_t who)
-{
-    if (which == PRIO_PROCESS)
-    {
-        rt_thread_t tid;
-
-        tid = rt_thread_self();
-        if (who == (id_t)tid || who == 0xff)
-        {
-            return tid->current_priority;
-        }
-    }
-
-    return 0xff;
-}
-
-/* syscall: "setpriority" ret: "int" args: "int" "id_t" "int" */
-int sys_setpriority(int which, id_t who, int prio)
-{
-    if (which == PRIO_PROCESS)
-    {
-        rt_thread_t tid;
-
-        tid = rt_thread_self();
-        if ((who == (id_t)tid || who == 0xff) && (prio >= 0 && prio < RT_THREAD_PRIORITY_MAX))
-        {
-            rt_thread_control(tid, RT_THREAD_CTRL_CHANGE_PRIORITY, &prio);
-            return 0;
-        }
-    }
-
-    return -1;
-}
-
-/* syscall: "gettimeofday" ret: "int" args: "struct timeval *" "struct timezone *" */
-int sys_gettimeofday(struct timeval *tp, struct timezone *tzp)
-{
-    if (tp)
-    {
-        tp->tv_sec = rt_tick_get() / RT_TICK_PER_SECOND;
-        tp->tv_usec = (rt_tick_get() % RT_TICK_PER_SECOND) * (1000000 / RT_TICK_PER_SECOND);
-    }
-
-    return 0;
-}
-
-/* syscall: "settimeofday" ret: "int" args: "const struct timeval *" "const struct timezone *" */
-int sys_settimeofday(const struct timeval *tv, const struct timezone *tzp)
-{
-    return 0;
-}
-
-/* syscall: "msgget" ret: "int" args: "key_t" "int" */
-int sys_msgget(key_t key, int msgflg)
-{
-    return -1;
-}
-
-/* syscall: "msgsnd" ret: "int" args: "int" "const void *" "size_t" "int" */
-int sys_msgsend(int msqid, const void *msgp, size_t msgsz, int msgflg)
-{
-    return -1;
-}
-
-/* syscall: "msgrcv" ret: "int" args: "int" "void *" "size_t" "long" "int" */
-int sys_msgrcv(int msqid, void *msgp, size_t msgsz, long msgtyp, int msgflg)
-{
-    return -1;
-}
-
-/* syscall: "sys_log" ret: "int" args: "const char*" "size" */
-int sys_log(const char* log, int size)
-{
-    rt_device_t console = rt_console_get_device();
-
-    if (console) rt_device_write(console, -1, log, size);
-
-    return 0;
-}
-
-void *sys_malloc(size_t size)
-{
-    return rt_lwp_mem_malloc(size);
-}
-
-void sys_free(void *addr)
-{
-    rt_lwp_mem_free(addr);
-}
-
-void *sys_realloc(void *rmem, size_t newsize)
-{
-    return rt_lwp_mem_realloc(rmem, newsize);
-}
-
-int sys_fstat(int file, struct stat *buf)
-{
-    return fstat(file, buf);
-}
-
-int sys_notimpl(void)
-{
-    return -ENOSYS;
-}
-
-const static void* func_table[] =
-{
-    (void *)sys_exit,           // 0x01
-    (void *)sys_read,           // 0x02
-    (void *)sys_write,          // 0x03
-    (void *)sys_lseek,          // 0x04
-    (void *)sys_open,           // 0x05
-    (void *)sys_close,          // 0x06
-    (void *)sys_ioctl,          // 0x07
-
-    (void *)sys_nanosleep,      // 0x08
-
-    (void *)sys_getpriority,    // 0x09
-    (void *)sys_setpriority,    // 0x0a
-
-    (void *)sys_gettimeofday,   // 0x0b
-    (void *)sys_settimeofday,   // 0x0c
-
-    (void *)sys_malloc,         // 0x0d
-    (void *)sys_free,           // 0x0e
-    (void *)sys_realloc,      //0x0f
-    (void *)sys_fstat,           // 0x10
-    poll,                        // 0x11
-
-    SYSCALL_NET(accept),     // 0x12
-    SYSCALL_NET(bind),       // 0x13
-    SYSCALL_NET(shutdown),   // 0x14
-    SYSCALL_NET(getpeername),// 0x15
-    SYSCALL_NET(getsockname),// 0x16
-    SYSCALL_NET(getsockopt), // 0x17
-    SYSCALL_NET(setsockopt), // 0x18
-    SYSCALL_NET(connect),    // 0x19
-    SYSCALL_NET(listen),     // 0x1a
-    SYSCALL_NET(recv),       // 0x1b
-    SYSCALL_NET(recvfrom),   // 0x1c
-    SYSCALL_NET(send),       // 0x1d
-    SYSCALL_NET(sendto),     // 0x1e
-    SYSCALL_NET(socket),     // 0x1f
-
-    select,                  // 0x20
-};
-
-const void *lwp_get_sys_api(rt_uint32_t number)
-{
-    const void *func = sys_notimpl;
-
-    if (number == 0xff)
-    {
-        func = (void *)sys_log;
-    }
-    else
-    {
-        number -= 1;
-        if (number < sizeof(func_table)/sizeof(func_table[0]))
-        {
-            func = func_table[number];
-        }
-    }
-
-    return func;
-}

components/lwp/lwp_syscall.h

@@ -1,78 +0,0 @@
-/*
- * 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

include/rtdef.h

@@ -496,10 +496,6 @@ typedef siginfo_t rt_siginfo_t;
 #define RT_THREAD_CTRL_CHANGE_PRIORITY  0x02                /**< Change thread priority. */
 #define RT_THREAD_CTRL_INFO             0x03                /**< Get thread information. */
 
-#ifdef RT_USING_LWP
-struct rt_lwp;
-#endif
-
 /**
  * Thread structure
  */
@@ -560,11 +556,12 @@ struct rt_thread
 
     void (*cleanup)(struct rt_thread *tid);             /**< cleanup function when thread exit */
 
-    rt_uint32_t user_data;                             /**< private user data beyond this thread */
-
+    /* light weight process if present */
 #ifdef RT_USING_LWP
-    struct rt_lwp *lwp;    /**< if NULL it's a kernel thread */
+    void        *lwp;
 #endif
+
+    rt_uint32_t user_data;                             /**< private user data beyond this thread */
 };
 typedef struct rt_thread *rt_thread_t;