Dan Searle
Official mbed Real Time Operating System based on the RTX implementation of the CMSIS-RTOS API open standard.
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mbed official
Official mbed Real Time Operating System based on the RTX implementation of the CMSIS-RTOS API open standard.
Revision 12:58b30ac3f00e, committed 2013-05-30
- Comitter:
- emilmont
- Date:
- Thu May 30 17:08:58 2013 +0100
- Parent:
- 11:db1fc233faa9
- Commit message:
- Add LPC4088 target
Fix rtos memory model for GCC toolchains
Changed in this revision
diff -r db1fc233faa9 -r 58b30ac3f00e rtx/LPC4088/ARM/HAL_CM4.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/rtx/LPC4088/ARM/HAL_CM4.c Thu May 30 17:08:58 2013 +0100
@@ -0,0 +1,309 @@
+/*----------------------------------------------------------------------------
+ * RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ * Name: HAL_CM4.C
+ * Purpose: Hardware Abstraction Layer for Cortex-M4
+ * Rev.: V4.70
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2013 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * - Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+#include "rt_TypeDef.h"
+#include "RTX_Conf.h"
+#include "rt_System.h"
+#include "rt_HAL_CM.h"
+#include "rt_Task.h"
+#include "rt_MemBox.h"
+
+
+/*----------------------------------------------------------------------------
+ * Functions
+ *---------------------------------------------------------------------------*/
+
+
+/*--------------------------- rt_set_PSP ------------------------------------*/
+
+__asm void rt_set_PSP (U32 stack) {
+ MSR PSP,R0
+ BX LR
+}
+
+
+/*--------------------------- rt_get_PSP ------------------------------------*/
+
+__asm U32 rt_get_PSP (void) {
+ MRS R0,PSP
+ BX LR
+}
+
+
+/*--------------------------- os_set_env ------------------------------------*/
+
+__asm void os_set_env (void) {
+ /* Switch to Unprivileged/Privileged Thread mode, use PSP. */
+ MOV R0,SP ; PSP = MSP
+ MSR PSP,R0
+ LDR R0,=__cpp(&os_flags)
+ LDRB R0,[R0]
+ LSLS R0,#31
+ MOVNE R0,#0x02 ; Privileged Thread mode, use PSP
+ MOVEQ R0,#0x03 ; Unprivileged Thread mode, use PSP
+ MSR CONTROL,R0
+ BX LR
+
+ ALIGN
+}
+
+
+/*--------------------------- _alloc_box ------------------------------------*/
+
+__asm void *_alloc_box (void *box_mem) {
+ /* Function wrapper for Unprivileged/Privileged mode. */
+ LDR R12,=__cpp(rt_alloc_box)
+ MRS R3,IPSR
+ LSLS R3,#24
+ BXNE R12
+ MRS R3,CONTROL
+ LSLS R3,#31
+ BXEQ R12
+ SVC 0
+ BX LR
+
+ ALIGN
+}
+
+
+/*--------------------------- _free_box -------------------------------------*/
+
+__asm int _free_box (void *box_mem, void *box) {
+ /* Function wrapper for Unprivileged/Privileged mode. */
+ LDR R12,=__cpp(rt_free_box)
+ MRS R3,IPSR
+ LSLS R3,#24
+ BXNE R12
+ MRS R3,CONTROL
+ LSLS R3,#31
+ BXEQ R12
+ SVC 0
+ BX LR
+
+ ALIGN
+}
+
+
+/*-------------------------- SVC_Handler ------------------------------------*/
+
+__asm void SVC_Handler (void) {
+ PRESERVE8
+
+ IMPORT SVC_Count
+ IMPORT SVC_Table
+ IMPORT rt_stk_check
+
+#ifdef IFX_XMC4XXX
+ EXPORT SVC_Handler_Veneer
+SVC_Handler_Veneer
+#endif
+
+ MRS R0,PSP ; Read PSP
+ LDR R1,[R0,#24] ; Read Saved PC from Stack
+ LDRB R1,[R1,#-2] ; Load SVC Number
+ CBNZ R1,SVC_User
+
+ LDM R0,{R0-R3,R12} ; Read R0-R3,R12 from stack
+ PUSH {R4,LR} ; Save EXC_RETURN
+ BLX R12 ; Call SVC Function
+ POP {R4,LR} ; Restore EXC_RETURN
+
+ MRS R12,PSP ; Read PSP
+ STM R12,{R0-R2} ; Store return values
+
+ LDR R3,=__cpp(&os_tsk)
+ LDM R3,{R1,R2} ; os_tsk.run, os_tsk.new
+ CMP R1,R2
+#ifdef IFX_XMC4XXX
+ PUSHEQ {LR}
+ POPEQ {PC}
+#else
+ BXEQ LR ; RETI, no task switch
+#endif
+
+ CBZ R1,SVC_Next ; Runtask deleted?
+ TST LR,#0x10 ; is it extended frame?
+ VSTMDBEQ R12!,{S16-S31} ; yes, stack also VFP hi-regs
+ MOVEQ R0,#0x01 ; os_tsk->stack_frame val
+ MOVNE R0,#0x00
+ STRB R0,[R1,#TCB_STACKF] ; os_tsk.run->stack_frame = val
+ STMDB R12!,{R4-R11} ; Save Old context
+ STR R12,[R1,#TCB_TSTACK] ; Update os_tsk.run->tsk_stack
+
+ PUSH {R2,R3}
+ BL rt_stk_check ; Check for Stack overflow
+ POP {R2,R3}
+
+SVC_Next
+ STR R2,[R3] ; os_tsk.run = os_tsk.new
+
+ LDR R12,[R2,#TCB_TSTACK] ; os_tsk.new->tsk_stack
+ LDMIA R12!,{R4-R11} ; Restore New Context
+ LDRB R0,[R2,#TCB_STACKF] ; Stack Frame
+ CMP R0,#0 ; Basic/Extended Stack Frame
+ VLDMIANE R12!,{S16-S31} ; restore VFP hi-registers
+ MVNNE LR,#:NOT:0xFFFFFFED ; set EXC_RETURN value
+ MVNEQ LR,#:NOT:0xFFFFFFFD
+ MSR PSP,R12 ; Write PSP
+
+SVC_Exit
+#ifdef IFX_XMC4XXX
+ PUSH {LR}
+ POP {PC}
+#else
+ BX LR
+#endif
+
+ /*------------------- User SVC ------------------------------*/
+
+SVC_User
+ PUSH {R4,LR} ; Save Registers
+ LDR R2,=SVC_Count
+ LDR R2,[R2]
+ CMP R1,R2
+ BHI SVC_Done ; Overflow
+
+ LDR R4,=SVC_Table-4
+ LDR R4,[R4,R1,LSL #2] ; Load SVC Function Address
+
+ LDM R0,{R0-R3,R12} ; Read R0-R3,R12 from stack
+ BLX R4 ; Call SVC Function
+
+ MRS R12,PSP
+ STM R12,{R0-R3} ; Function return values
+SVC_Done
+ POP {R4,PC} ; RETI
+
+ ALIGN
+}
+
+
+/*-------------------------- PendSV_Handler ---------------------------------*/
+
+__asm void PendSV_Handler (void) {
+ PRESERVE8
+
+#ifdef IFX_XMC4XXX
+ EXPORT PendSV_Handler_Veneer
+PendSV_Handler_Veneer
+#endif
+
+ PUSH {R4,LR} ; Save EXC_RETURN
+ BL __cpp(rt_pop_req)
+
+Sys_Switch
+ POP {R4,LR} ; Restore EXC_RETURN
+
+ LDR R3,=__cpp(&os_tsk)
+ LDM R3,{R1,R2} ; os_tsk.run, os_tsk.new
+ CMP R1,R2
+#ifdef IFX_XMC4XXX
+ PUSHEQ {LR}
+ POPEQ {PC}
+#else
+ BXEQ LR ; RETI, no task switch
+#endif
+
+ MRS R12,PSP ; Read PSP
+ TST LR,#0x10 ; is it extended frame?
+ VSTMDBEQ R12!,{S16-S31} ; yes, stack also VFP hi-regs
+ MOVEQ R0,#0x01 ; os_tsk->stack_frame val
+ MOVNE R0,#0x00
+ STRB R0,[R1,#TCB_STACKF] ; os_tsk.run->stack_frame = val
+ STMDB R12!,{R4-R11} ; Save Old context
+ STR R12,[R1,#TCB_TSTACK] ; Update os_tsk.run->tsk_stack
+
+ PUSH {R2,R3}
+ BL rt_stk_check ; Check for Stack overflow
+ POP {R2,R3}
+
+ STR R2,[R3] ; os_tsk.run = os_tsk.new
+
+ LDR R12,[R2,#TCB_TSTACK] ; os_tsk.new->tsk_stack
+ LDMIA R12!,{R4-R11} ; Restore New Context
+ LDRB R0,[R2,#TCB_STACKF] ; Stack Frame
+ CMP R0,#0 ; Basic/Extended Stack Frame
+ VLDMIANE R12!,{S16-S31} ; restore VFP hi-regs
+ MVNNE LR,#:NOT:0xFFFFFFED ; set EXC_RETURN value
+ MVNEQ LR,#:NOT:0xFFFFFFFD
+ MSR PSP,R12 ; Write PSP
+
+Sys_Exit
+#ifdef IFX_XMC4XXX
+ PUSH {LR}
+ POP {PC}
+#else
+ BX LR ; Return to Thread Mode
+#endif
+
+ ALIGN
+}
+
+
+/*-------------------------- SysTick_Handler --------------------------------*/
+
+__asm void SysTick_Handler (void) {
+ PRESERVE8
+
+#ifdef IFX_XMC4XXX
+ EXPORT SysTick_Handler_Veneer
+SysTick_Handler_Veneer
+#endif
+
+ PUSH {R4,LR} ; Save EXC_RETURN
+ BL __cpp(rt_systick)
+ B Sys_Switch
+
+ ALIGN
+}
+
+
+/*-------------------------- OS_Tick_Handler --------------------------------*/
+
+__asm void OS_Tick_Handler (void) {
+ PRESERVE8
+
+ PUSH {R4,LR} ; Save EXC_RETURN
+ BL __cpp(os_tick_irqack)
+ BL __cpp(rt_systick)
+ B Sys_Switch
+
+ ALIGN
+}
+
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
+
diff -r db1fc233faa9 -r 58b30ac3f00e rtx/LPC4088/ARM/SVC_Table.s --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/rtx/LPC4088/ARM/SVC_Table.s Thu May 30 17:08:58 2013 +0100 @@ -0,0 +1,57 @@ +;/*---------------------------------------------------------------------------- +; * RL-ARM - RTX +; *---------------------------------------------------------------------------- +; * Name: SVC_TABLE.S +; * Purpose: Pre-defined SVC Table for Cortex-M +; * Rev.: V4.70 +; *---------------------------------------------------------------------------- +; * +; * Copyright (c) 1999-2009 KEIL, 2009-2013 ARM Germany GmbH +; * All rights reserved. +; * Redistribution and use in source and binary forms, with or without +; * modification, are permitted provided that the following conditions are met: +; * - Redistributions of source code must retain the above copyright +; * notice, this list of conditions and the following disclaimer. +; * - Redistributions in binary form must reproduce the above copyright +; * notice, this list of conditions and the following disclaimer in the +; * documentation and/or other materials provided with the distribution. +; * - Neither the name of ARM nor the names of its contributors may be used +; * to endorse or promote products derived from this software without +; * specific prior written permission. +; * +; * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +; * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +; * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +; * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE +; * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +; * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +; * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +; * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +; * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +; * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +; * POSSIBILITY OF SUCH DAMAGE. +; *---------------------------------------------------------------------------*/ + + + AREA SVC_TABLE, CODE, READONLY + + EXPORT SVC_Count + +SVC_Cnt EQU (SVC_End-SVC_Table)/4 +SVC_Count DCD SVC_Cnt + +; Import user SVC functions here. +; IMPORT __SVC_1 + + EXPORT SVC_Table +SVC_Table +; Insert user SVC functions here. SVC 0 used by RTL Kernel. +; DCD __SVC_1 ; user SVC function + +SVC_End + + END + +/*---------------------------------------------------------------------------- + * end of file + *---------------------------------------------------------------------------*/
diff -r db1fc233faa9 -r 58b30ac3f00e rtx/LPC4088/GCC_CR/HAL_CM4.s
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/rtx/LPC4088/GCC_CR/HAL_CM4.s Thu May 30 17:08:58 2013 +0100
@@ -0,0 +1,389 @@
+/*----------------------------------------------------------------------------
+ * RL-ARM - RTX
+ *----------------------------------------------------------------------------
+ * Name: HAL_CM4.S
+ * Purpose: Hardware Abstraction Layer for Cortex-M4
+ * Rev.: V4.70
+ *----------------------------------------------------------------------------
+ *
+ * Copyright (c) 1999-2009 KEIL, 2009-2013 ARM Germany GmbH
+ * All rights reserved.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * - Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *---------------------------------------------------------------------------*/
+
+ .file "HAL_CM4.S"
+ .syntax unified
+
+ .equ TCB_STACKF, 32
+ .equ TCB_TSTACK, 36
+
+
+/*----------------------------------------------------------------------------
+ * Functions
+ *---------------------------------------------------------------------------*/
+
+ .thumb
+
+ .section ".text"
+ .align 2
+
+
+/*--------------------------- rt_set_PSP ------------------------------------*/
+
+# void rt_set_PSP (U32 stack);
+
+ .thumb_func
+ .type rt_set_PSP, %function
+ .global rt_set_PSP
+rt_set_PSP:
+ .fnstart
+ .cantunwind
+
+ MSR PSP,R0
+ BX LR
+
+ .fnend
+ .size rt_set_PSP, .-rt_set_PSP
+
+
+/*--------------------------- rt_get_PSP ------------------------------------*/
+
+# U32 rt_get_PSP (void);
+
+ .thumb_func
+ .type rt_get_PSP, %function
+ .global rt_get_PSP
+rt_get_PSP:
+ .fnstart
+ .cantunwind
+
+ MRS R0,PSP
+ BX LR
+
+ .fnend
+ .size rt_get_PSP, .-rt_get_PSP
+
+
+/*--------------------------- os_set_env ------------------------------------*/
+
+# void os_set_env (void);
+ /* Switch to Unprivileged/Privileged Thread mode, use PSP. */
+
+ .thumb_func
+ .type os_set_env, %function
+ .global os_set_env
+os_set_env:
+ .fnstart
+ .cantunwind
+
+ MOV R0,SP /* PSP = MSP */
+ MSR PSP,R0
+ LDR R0,=os_flags
+ LDRB R0,[R0]
+ LSLS R0,#31
+ ITE NE
+ MOVNE R0,#0x02 /* Privileged Thread mode, use PSP */
+ MOVEQ R0,#0x03 /* Unprivileged Thread mode, use PSP */
+ MSR CONTROL,R0
+ BX LR
+
+ .fnend
+ .size os_set_env, .-os_set_env
+
+
+/*--------------------------- _alloc_box ------------------------------------*/
+
+# void *_alloc_box (void *box_mem);
+ /* Function wrapper for Unprivileged/Privileged mode. */
+
+ .thumb_func
+ .type _alloc_box, %function
+ .global _alloc_box
+_alloc_box:
+ .fnstart
+ .cantunwind
+
+ LDR R12,=rt_alloc_box
+ MRS R3,IPSR
+ LSLS R3,#24
+ IT NE
+ BXNE R12
+ MRS R3,CONTROL
+ LSLS R3,#31
+ IT EQ
+ BXEQ R12
+ SVC 0
+ BX LR
+
+ .fnend
+ .size _alloc_box, .-_alloc_box
+
+
+/*--------------------------- _free_box -------------------------------------*/
+
+# int _free_box (void *box_mem, void *box);
+ /* Function wrapper for Unprivileged/Privileged mode. */
+
+ .thumb_func
+ .type _free_box, %function
+ .global _free_box
+_free_box:
+ .fnstart
+ .cantunwind
+
+ LDR R12,=rt_free_box
+ MRS R3,IPSR
+ LSLS R3,#24
+ IT NE
+ BXNE R12
+ MRS R3,CONTROL
+ LSLS R3,#31
+ IT EQ
+ BXEQ R12
+ SVC 0
+ BX LR
+
+ .fnend
+ .size _free_box, .-_free_box
+
+
+/*-------------------------- SVC_Handler ------------------------------------*/
+
+# void SVC_Handler (void);
+
+ .thumb_func
+ .type SVC_Handler, %function
+ .global SVC_Handler
+SVC_Handler:
+ .ifdef IFX_XMC4XXX
+ .global SVC_Handler_Veneer
+SVC_Handler_Veneer:
+ .endif
+ .fnstart
+ .cantunwind
+
+ MRS R0,PSP /* Read PSP */
+ LDR R1,[R0,#24] /* Read Saved PC from Stack */
+ LDRB R1,[R1,#-2] /* Load SVC Number */
+ CBNZ R1,SVC_User
+
+ LDM R0,{R0-R3,R12} /* Read R0-R3,R12 from stack */
+ PUSH {R4,LR} /* Save EXC_RETURN */
+ BLX R12 /* Call SVC Function */
+ POP {R4,LR} /* Restore EXC_RETURN */
+
+ MRS R12,PSP /* Read PSP */
+ STM R12,{R0-R2} /* Store return values */
+
+ LDR R3,=os_tsk
+ LDM R3,{R1,R2} /* os_tsk.run, os_tsk.new */
+ CMP R1,R2
+ .ifdef IFX_XMC4XXX
+ ITT EQ
+ PUSHEQ {LR}
+ POPEQ {PC}
+ .else
+ IT EQ
+ BXEQ LR /* RETI, no task switch */
+ .endif
+
+ CBZ R1,SVC_Next /* Runtask deleted? */
+ TST LR,#0x10 /* is it extended frame? */
+ ITTE EQ
+ VSTMDBEQ R12!,{S16-S31} /* yes, stack also VFP hi-regs */
+ MOVEQ R0,#0x01 /* os_tsk->stack_frame val */
+ MOVNE R0,#0x00
+ STRB R0,[R1,#TCB_STACKF] /* os_tsk.run->stack_frame = val */
+ STMDB R12!,{R4-R11} /* Save Old context */
+ STR R12,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */
+
+ PUSH {R2,R3}
+ BL rt_stk_check /* Check for Stack overflow */
+ POP {R2,R3}
+
+SVC_Next:
+ STR R2,[R3] /* os_tsk.run = os_tsk.new */
+
+ LDR R12,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */
+ LDMIA R12!,{R4-R11} /* Restore New Context */
+ LDRB R0,[R2,#TCB_STACKF] /* Stack Frame */
+ CMP R0,#0 /* Basic/Extended Stack Frame */
+ ITTE NE
+ VLDMIANE R12!,{S16-S31} /* restore VFP hi-registers */
+ MVNNE LR,#~0xFFFFFFED /* set EXC_RETURN value */
+ MVNEQ LR,#~0xFFFFFFFD
+ MSR PSP,R12 /* Write PSP */
+
+SVC_Exit:
+ .ifdef IFX_XMC4XXX
+ PUSH {LR}
+ POP {PC}
+ .else
+ BX LR
+ .endif
+
+ /*------------------- User SVC ------------------------------*/
+
+SVC_User:
+ PUSH {R4,LR} /* Save Registers */
+ LDR R2,=SVC_Count
+ LDR R2,[R2]
+ CMP R1,R2
+ BHI SVC_Done /* Overflow */
+
+ LDR R4,=SVC_Table-4
+ LDR R4,[R4,R1,LSL #2] /* Load SVC Function Address */
+
+ LDM R0,{R0-R3,R12} /* Read R0-R3,R12 from stack */
+ BLX R4 /* Call SVC Function */
+
+ MRS R12,PSP
+ STM R12,{R0-R3} /* Function return values */
+SVC_Done:
+ POP {R4,PC} /* RETI */
+
+ .fnend
+ .size SVC_Handler, .-SVC_Handler
+
+
+/*-------------------------- PendSV_Handler ---------------------------------*/
+
+# void PendSV_Handler (void);
+
+ .thumb_func
+ .type PendSV_Handler, %function
+ .global PendSV_Handler
+ .global Sys_Switch
+PendSV_Handler:
+ .ifdef IFX_XMC4XXX
+ .global PendSV_Handler_Veneer
+PendSV_Handler_Veneer:
+ .endif
+ .fnstart
+ .cantunwind
+
+ PUSH {R4,LR} /* Save EXC_RETURN */
+ BL rt_pop_req
+
+Sys_Switch:
+ POP {R4,LR} /* Restore EXC_RETURN */
+
+ LDR R3,=os_tsk
+ LDM R3,{R1,R2} /* os_tsk.run, os_tsk.new */
+ CMP R1,R2
+ .ifdef IFX_XMC4XXX
+ ITT EQ
+ PUSHEQ {LR}
+ POPEQ {PC}
+ .else
+ IT EQ
+ BXEQ LR /* RETI, no task switch */
+ .endif
+
+ MRS R12,PSP /* Read PSP */
+ TST LR,#0x10 /* is it extended frame? */
+ ITTE EQ
+ VSTMDBEQ R12!,{S16-S31} /* yes, stack also VFP hi-regs */
+ MOVEQ R0,#0x01 /* os_tsk->stack_frame val */
+ MOVNE R0,#0x00
+ STRB R0,[R1,#TCB_STACKF] /* os_tsk.run->stack_frame = val */
+ STMDB R12!,{R4-R11} /* Save Old context */
+ STR R12,[R1,#TCB_TSTACK] /* Update os_tsk.run->tsk_stack */
+
+ PUSH {R2,R3}
+ BL rt_stk_check /* Check for Stack overflow */
+ POP {R2,R3}
+
+ STR R2,[R3] /* os_tsk.run = os_tsk.new */
+
+ LDR R12,[R2,#TCB_TSTACK] /* os_tsk.new->tsk_stack */
+ LDMIA R12!,{R4-R11} /* Restore New Context */
+ LDRB R0,[R2,#TCB_STACKF] /* Stack Frame */
+ CMP R0,#0 /* Basic/Extended Stack Frame */
+ ITTE NE
+ VLDMIANE R12!,{S16-S31} /* restore VFP hi-registers */
+ MVNNE LR,#~0xFFFFFFED /* set EXC_RETURN value */
+ MVNEQ LR,#~0xFFFFFFFD
+ MSR PSP,R12 /* Write PSP */
+
+Sys_Exit:
+ .ifdef IFX_XMC4XXX
+ PUSH {LR}
+ POP {PC}
+ .else
+ BX LR /* Return to Thread Mode */
+ .endif
+
+ .fnend
+ .size PendSV_Handler, .-PendSV_Handler
+
+
+/*-------------------------- SysTick_Handler --------------------------------*/
+
+# void SysTick_Handler (void);
+
+ .thumb_func
+ .type SysTick_Handler, %function
+ .global SysTick_Handler
+SysTick_Handler:
+ .ifdef IFX_XMC4XXX
+ .global SysTick_Handler_Veneer
+SysTick_Handler_Veneer:
+ .endif
+ .fnstart
+ .cantunwind
+
+ PUSH {R4,LR} /* Save EXC_RETURN */
+ BL rt_systick
+ B Sys_Switch
+
+ .fnend
+ .size SysTick_Handler, .-SysTick_Handler
+
+
+/*-------------------------- OS_Tick_Handler --------------------------------*/
+
+# void OS_Tick_Handler (void);
+
+ .thumb_func
+ .type OS_Tick_Handler, %function
+ .global OS_Tick_Handler
+OS_Tick_Handler:
+ .fnstart
+ .cantunwind
+
+ PUSH {R4,LR} /* Save EXC_RETURN */
+ BL os_tick_irqack
+ BL rt_systick
+ B Sys_Switch
+
+ .fnend
+ .size OS_Tick_Handler, .-OS_Tick_Handler
+
+
+ .end
+
+/*----------------------------------------------------------------------------
+ * end of file
+ *---------------------------------------------------------------------------*/
diff -r db1fc233faa9 -r 58b30ac3f00e rtx/LPC4088/GCC_CR/SVC_Table.s --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/rtx/LPC4088/GCC_CR/SVC_Table.s Thu May 30 17:08:58 2013 +0100 @@ -0,0 +1,56 @@ +;/*---------------------------------------------------------------------------- +; * RL-ARM - RTX +; *---------------------------------------------------------------------------- +; * Name: SVC_TABLE.S +; * Purpose: Pre-defined SVC Table for Cortex-M +; * Rev.: V4.70 +; *---------------------------------------------------------------------------- +; * +; * Copyright (c) 1999-2009 KEIL, 2009-2013 ARM Germany GmbH +; * All rights reserved. +; * Redistribution and use in source and binary forms, with or without +; * modification, are permitted provided that the following conditions are met: +; * - Redistributions of source code must retain the above copyright +; * notice, this list of conditions and the following disclaimer. +; * - Redistributions in binary form must reproduce the above copyright +; * notice, this list of conditions and the following disclaimer in the +; * documentation and/or other materials provided with the distribution. +; * - Neither the name of ARM nor the names of its contributors may be used +; * to endorse or promote products derived from this software without +; * specific prior written permission. +; * +; * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +; * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +; * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +; * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE +; * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +; * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +; * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +; * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +; * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) +; * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +; * POSSIBILITY OF SUCH DAMAGE. +; *---------------------------------------------------------------------------*/ + + + .file "SVC_Table.S" + + + .section ".svc_table" + + .global SVC_Table +SVC_Table: +/* Insert user SVC functions here. SVC 0 used by RTL Kernel. */ +# .long __SVC_1 /* user SVC function */ +SVC_End: + + .global SVC_Count +SVC_Count: + .long (SVC_End-SVC_Table)/4 + + + .end + +/*---------------------------------------------------------------------------- + * end of file + *---------------------------------------------------------------------------*/
diff -r db1fc233faa9 -r 58b30ac3f00e rtx/RTX_CM_lib.h
--- a/rtx/RTX_CM_lib.h Tue Apr 30 10:51:19 2013 +0000
+++ b/rtx/RTX_CM_lib.h Thu May 30 17:08:58 2013 +0100
@@ -198,8 +198,6 @@
extern int main (void);
osThreadDef_t os_thread_def_main = {(os_pthread)main, osPriorityNormal, 0, NULL};
-#if defined (__CC_ARM)
-
// This define should be probably moved to the CMSIS layer
#ifdef TARGET_LPC1768
#define INITIAL_SP (0x10008000UL)
@@ -210,16 +208,28 @@
#elif TARGET_KL25Z
#define INITIAL_SP (0x20003000UL)
+#elif TARGET_LPC4088
+#define INITIAL_SP (0x10010000UL)
+
#endif
-extern unsigned char Image$$RW_IRAM1$$ZI$$Limit[];
+#ifdef __CC_ARM
+extern unsigned char Image$$RW_IRAM1$$ZI$$Limit[];
+#define HEAP_START (Image$$RW_IRAM1$$ZI$$Limit)
+#elif defined(__GNUC__)
+extern unsigned char __HeapLimit[];
+#define HEAP_START (__HeapLimit)
+#endif
void set_main_stack(void) {
+ // That is the bottom of the main stack block: no collision detection
+ os_thread_def_main.stack_pointer = HEAP_START;
+
// Leave OS_SCHEDULERSTKSIZE words for the scheduler and interrupts
- os_thread_def_main.stack_pointer = Image$$RW_IRAM1$$ZI$$Limit;
- os_thread_def_main.stacksize = (INITIAL_SP - (unsigned int)Image$$RW_IRAM1$$ZI$$Limit) - (OS_SCHEDULERSTKSIZE * 4);
+ os_thread_def_main.stacksize = (INITIAL_SP - (unsigned int)HEAP_START) - (OS_SCHEDULERSTKSIZE * 4);
}
+#if defined (__CC_ARM)
#ifdef __MICROLIB
void _main_init (void) __attribute__((section(".ARM.Collect$$$$000000FF")));
void _main_init (void) {
@@ -313,6 +323,7 @@
__libc_init_array ();
osKernelInitialize();
+ set_main_stack();
osThreadCreate(&os_thread_def_main, NULL);
osKernelStart();
for (;;);
@@ -334,6 +345,7 @@
"mov r0,r4\n"
"mov r1,r5\n"
"bl osKernelInitialize\n"
+ "bl set_main_stack\n"
"ldr r0,=os_thread_def_main\n"
"movs r1,#0\n"
"bl osThreadCreate\n"
diff -r db1fc233faa9 -r 58b30ac3f00e rtx/RTX_Conf_CM.c --- a/rtx/RTX_Conf_CM.c Tue Apr 30 10:51:19 2013 +0000 +++ b/rtx/RTX_Conf_CM.c Thu May 30 17:08:58 2013 +0100 @@ -49,7 +49,7 @@ // counting "main", but not counting "osTimerThread" // <i> Default: 6 #ifndef OS_TASKCNT -# if defined(TARGET_LPC1768) || defined(TARGET_LPC2368) +# if defined(TARGET_LPC1768) || defined(TARGET_LPC2368) || defined(TARGET_LPC4088) # define OS_TASKCNT 14 # elif defined(TARGET_LPC11U24) || defined(TARGET_KL25Z) # define OS_TASKCNT 6 @@ -58,7 +58,7 @@ // <o>Scheduler (+ interrupts) stack size [bytes] <64-4096:8><#/4> #ifndef OS_SCHEDULERSTKSIZE -# if defined(TARGET_LPC1768) || defined(TARGET_LPC2368) +# if defined(TARGET_LPC1768) || defined(TARGET_LPC2368) || defined(TARGET_LPC4088) # define OS_SCHEDULERSTKSIZE 256 # elif defined(TARGET_LPC11U24) || defined(TARGET_KL25Z) # define OS_SCHEDULERSTKSIZE 128 @@ -106,6 +106,9 @@ # elif defined(TARGET_LPC11U24) || defined(TARGET_KL25Z) # define OS_CLOCK 48000000 +# +# elif defined(TARGET_LPC4088) +# define OS_CLOCK 120000000 # endif #endif
diff -r db1fc233faa9 -r 58b30ac3f00e rtx/cmsis_os.h --- a/rtx/cmsis_os.h Tue Apr 30 10:51:19 2013 +0000 +++ b/rtx/cmsis_os.h Thu May 30 17:08:58 2013 +0100 @@ -115,7 +115,7 @@ #define CMSIS_OS_RTX // The stack space occupied is mainly dependent on the underling C standard library -#if defined(TOOLCHAIN_GCC_ARM) || defined(TOOLCHAIN_CS_ARM) || defined(TOOLCHAIN_CR_ARM) +#if defined(TOOLCHAIN_GCC_ARM) || defined(TOOLCHAIN_CS_ARM) || defined(TOOLCHAIN_CR_ARM) || defined(TOOLCHAIN_GCC_CR) # define WORDS_STACK_SIZE 512 #elif defined(TOOLCHAIN_ARM) # define WORDS_STACK_SIZE 512