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Correct long time mis-spelled portINITIAL_EXEC_RETURN to portINITIAL_EXC_RETURN

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This commit is contained in:
Richard Barry 2017-05-30 00:36:09 +00:00
parent 3f74cd483b
commit 6eea3d8d4b
16 changed files with 68 additions and 68 deletions
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4
FreeRTOS/Source/portable/CCS/ARM_CM4F/port.c
View file

@ -127,7 +127,7 @@
/* Constants required to set up the initial stack. */ /* Constants required to set up the initial stack. */
#define portINITIAL_XPSR ( 0x01000000 ) #define portINITIAL_XPSR ( 0x01000000 )
#define portINITIAL_EXEC_RETURN ( 0xfffffffd ) #define portINITIAL_EXC_RETURN ( 0xfffffffd )
/* The systick is a 24-bit counter. */ /* The systick is a 24-bit counter. */
#define portMAX_24_BIT_NUMBER ( 0xffffffUL ) #define portMAX_24_BIT_NUMBER ( 0xffffffUL )
@ -239,7 +239,7 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px
/* A save method is being used that requires each task to maintain its /* A save method is being used that requires each task to maintain its
own exec return value. */ own exec return value. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = portINITIAL_EXEC_RETURN; *pxTopOfStack = portINITIAL_EXC_RETURN;
pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */ pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */

4
FreeRTOS/Source/portable/CCS/ARM_CM4F/portasm.asm
View file

@ -123,7 +123,7 @@ xPortPendSVHandler: .asmfunc
;/* Save the new top of stack into the first member of the TCB. */ ;/* Save the new top of stack into the first member of the TCB. */
str r0, [r2] str r0, [r2]
stmdb sp!, {r3} stmdb sp!, {r0, r3}
ldr r0, ulMaxSyscallInterruptPriorityConst ldr r0, ulMaxSyscallInterruptPriorityConst
ldr r1, [r0] ldr r1, [r0]
msr basepri, r1 msr basepri, r1
@ -132,7 +132,7 @@ xPortPendSVHandler: .asmfunc
bl vTaskSwitchContext bl vTaskSwitchContext
mov r0, #0 mov r0, #0
msr basepri, r0 msr basepri, r0
ldmia sp!, {r3} ldmia sp!, {r0, r3}
;/* The first item in pxCurrentTCB is the task top of stack. */ ;/* The first item in pxCurrentTCB is the task top of stack. */
ldr r1, [r3] ldr r1, [r3]

8
FreeRTOS/Source/portable/GCC/ARM_CM4F/port.c
View file

@ -129,7 +129,7 @@ r0p1 port. */
/* Constants required to set up the initial stack. */ /* Constants required to set up the initial stack. */
#define portINITIAL_XPSR ( 0x01000000 ) #define portINITIAL_XPSR ( 0x01000000 )
#define portINITIAL_EXEC_RETURN ( 0xfffffffd ) #define portINITIAL_EXC_RETURN ( 0xfffffffd )
/* The systick is a 24-bit counter. */ /* The systick is a 24-bit counter. */
#define portMAX_24_BIT_NUMBER ( 0xffffffUL ) #define portMAX_24_BIT_NUMBER ( 0xffffffUL )
@ -248,7 +248,7 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px
/* A save method is being used that requires each task to maintain its /* A save method is being used that requires each task to maintain its
own exec return value. */ own exec return value. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = portINITIAL_EXEC_RETURN; *pxTopOfStack = portINITIAL_EXC_RETURN;
pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */ pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */
@ -489,7 +489,7 @@ void xPortPendSVHandler( void )
" stmdb r0!, {r4-r11, r14} \n" /* Save the core registers. */ " stmdb r0!, {r4-r11, r14} \n" /* Save the core registers. */
" str r0, [r2] \n" /* Save the new top of stack into the first member of the TCB. */ " str r0, [r2] \n" /* Save the new top of stack into the first member of the TCB. */
" \n" " \n"
" stmdb sp!, {r3} \n" " stmdb sp!, {r0, r3} \n"
" mov r0, %0 \n" " mov r0, %0 \n"
" msr basepri, r0 \n" " msr basepri, r0 \n"
" dsb \n" " dsb \n"
@ -497,7 +497,7 @@ void xPortPendSVHandler( void )
" bl vTaskSwitchContext \n" " bl vTaskSwitchContext \n"
" mov r0, #0 \n" " mov r0, #0 \n"
" msr basepri, r0 \n" " msr basepri, r0 \n"
" ldmia sp!, {r3} \n" " ldmia sp!, {r0, r3} \n"
" \n" " \n"
" ldr r1, [r3] \n" /* The first item in pxCurrentTCB is the task top of stack. */ " ldr r1, [r3] \n" /* The first item in pxCurrentTCB is the task top of stack. */
" ldr r0, [r1] \n" " ldr r0, [r1] \n"

8
FreeRTOS/Source/portable/GCC/ARM_CM4_MPU/port.c
View file

@ -134,7 +134,7 @@ task.h is included from an application file. */
/* Constants required to set up the initial stack. */ /* Constants required to set up the initial stack. */
#define portINITIAL_XPSR ( 0x01000000UL ) #define portINITIAL_XPSR ( 0x01000000UL )
#define portINITIAL_EXEC_RETURN ( 0xfffffffdUL ) #define portINITIAL_EXC_RETURN ( 0xfffffffdUL )
#define portINITIAL_CONTROL_IF_UNPRIVILEGED ( 0x03 ) #define portINITIAL_CONTROL_IF_UNPRIVILEGED ( 0x03 )
#define portINITIAL_CONTROL_IF_PRIVILEGED ( 0x02 ) #define portINITIAL_CONTROL_IF_PRIVILEGED ( 0x02 )
@ -243,7 +243,7 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px
/* A save method is being used that requires each task to maintain its /* A save method is being used that requires each task to maintain its
own exec return value. */ own exec return value. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = portINITIAL_EXEC_RETURN; *pxTopOfStack = portINITIAL_EXC_RETURN;
pxTopOfStack -= 9; /* R11, R10, R9, R8, R7, R6, R5 and R4. */ pxTopOfStack -= 9; /* R11, R10, R9, R8, R7, R6, R5 and R4. */
@ -514,7 +514,7 @@ void xPortPendSVHandler( void )
" stmdb r0!, {r1, r4-r11, r14} \n" /* Save the remaining registers. */ " stmdb r0!, {r1, r4-r11, r14} \n" /* Save the remaining registers. */
" str r0, [r2] \n" /* Save the new top of stack into the first member of the TCB. */ " str r0, [r2] \n" /* Save the new top of stack into the first member of the TCB. */
" \n" " \n"
" stmdb sp!, {r3} \n" " stmdb sp!, {r0, r3} \n"
" mov r0, %0 \n" " mov r0, %0 \n"
" msr basepri, r0 \n" " msr basepri, r0 \n"
" dsb \n" " dsb \n"
@ -522,7 +522,7 @@ void xPortPendSVHandler( void )
" bl vTaskSwitchContext \n" " bl vTaskSwitchContext \n"
" mov r0, #0 \n" " mov r0, #0 \n"
" msr basepri, r0 \n" " msr basepri, r0 \n"
" ldmia sp!, {r3} \n" " ldmia sp!, {r0, r3} \n"
" \n" /* Restore the context. */ " \n" /* Restore the context. */
" ldr r1, [r3] \n" " ldr r1, [r3] \n"
" ldr r0, [r1] \n" /* The first item in the TCB is the task top of stack. */ " ldr r0, [r1] \n" /* The first item in the TCB is the task top of stack. */

8
FreeRTOS/Source/portable/GCC/ARM_CM7/r0p1/port.c
View file

@ -123,7 +123,7 @@
/* Constants required to set up the initial stack. */ /* Constants required to set up the initial stack. */
#define portINITIAL_XPSR ( 0x01000000 ) #define portINITIAL_XPSR ( 0x01000000 )
#define portINITIAL_EXEC_RETURN ( 0xfffffffd ) #define portINITIAL_EXC_RETURN ( 0xfffffffd )
/* The systick is a 24-bit counter. */ /* The systick is a 24-bit counter. */
#define portMAX_24_BIT_NUMBER ( 0xffffffUL ) #define portMAX_24_BIT_NUMBER ( 0xffffffUL )
@ -242,7 +242,7 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px
/* A save method is being used that requires each task to maintain its /* A save method is being used that requires each task to maintain its
own exec return value. */ own exec return value. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = portINITIAL_EXEC_RETURN; *pxTopOfStack = portINITIAL_EXC_RETURN;
pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */ pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */
@ -477,7 +477,7 @@ void xPortPendSVHandler( void )
" stmdb r0!, {r4-r11, r14} \n" /* Save the core registers. */ " stmdb r0!, {r4-r11, r14} \n" /* Save the core registers. */
" str r0, [r2] \n" /* Save the new top of stack into the first member of the TCB. */ " str r0, [r2] \n" /* Save the new top of stack into the first member of the TCB. */
" \n" " \n"
" stmdb sp!, {r3} \n" " stmdb sp!, {r0, r3} \n"
" mov r0, %0 \n" " mov r0, %0 \n"
" cpsid i \n" /* Errata workaround. */ " cpsid i \n" /* Errata workaround. */
" msr basepri, r0 \n" " msr basepri, r0 \n"
@ -487,7 +487,7 @@ void xPortPendSVHandler( void )
" bl vTaskSwitchContext \n" " bl vTaskSwitchContext \n"
" mov r0, #0 \n" " mov r0, #0 \n"
" msr basepri, r0 \n" " msr basepri, r0 \n"
" ldmia sp!, {r3} \n" " ldmia sp!, {r0, r3} \n"
" \n" " \n"
" ldr r1, [r3] \n" /* The first item in pxCurrentTCB is the task top of stack. */ " ldr r1, [r3] \n" /* The first item in pxCurrentTCB is the task top of stack. */
" ldr r0, [r1] \n" " ldr r0, [r1] \n"

4
FreeRTOS/Source/portable/IAR/ARM_CM4F/port.c
View file

@ -136,7 +136,7 @@ r0p1 port. */
/* Constants required to set up the initial stack. */ /* Constants required to set up the initial stack. */
#define portINITIAL_XPSR ( 0x01000000 ) #define portINITIAL_XPSR ( 0x01000000 )
#define portINITIAL_EXEC_RETURN ( 0xfffffffd ) #define portINITIAL_EXC_RETURN ( 0xfffffffd )
/* The systick is a 24-bit counter. */ /* The systick is a 24-bit counter. */
#define portMAX_24_BIT_NUMBER ( 0xffffffUL ) #define portMAX_24_BIT_NUMBER ( 0xffffffUL )
@ -244,7 +244,7 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px
/* A save method is being used that requires each task to maintain its /* A save method is being used that requires each task to maintain its
own exec return value. */ own exec return value. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = portINITIAL_EXEC_RETURN; *pxTopOfStack = portINITIAL_EXC_RETURN;
pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */ pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */

4
FreeRTOS/Source/portable/IAR/ARM_CM4F/portasm.s
View file

@ -101,7 +101,7 @@ xPortPendSVHandler:
/* Save the new top of stack into the first member of the TCB. */ /* Save the new top of stack into the first member of the TCB. */
str r0, [r2] str r0, [r2]
stmdb sp!, {r3} stmdb sp!, {r0, r3}
mov r0, #configMAX_SYSCALL_INTERRUPT_PRIORITY mov r0, #configMAX_SYSCALL_INTERRUPT_PRIORITY
msr basepri, r0 msr basepri, r0
dsb dsb
@ -109,7 +109,7 @@ xPortPendSVHandler:
bl vTaskSwitchContext bl vTaskSwitchContext
mov r0, #0 mov r0, #0
msr basepri, r0 msr basepri, r0
ldmia sp!, {r3} ldmia sp!, {r0, r3}
/* The first item in pxCurrentTCB is the task top of stack. */ /* The first item in pxCurrentTCB is the task top of stack. */
ldr r1, [r3] ldr r1, [r3]

4
FreeRTOS/Source/portable/IAR/ARM_CM7/r0p1/port.c
View file

@ -130,7 +130,7 @@
/* Constants required to set up the initial stack. */ /* Constants required to set up the initial stack. */
#define portINITIAL_XPSR ( 0x01000000 ) #define portINITIAL_XPSR ( 0x01000000 )
#define portINITIAL_EXEC_RETURN ( 0xfffffffd ) #define portINITIAL_EXC_RETURN ( 0xfffffffd )
/* The systick is a 24-bit counter. */ /* The systick is a 24-bit counter. */
#define portMAX_24_BIT_NUMBER ( 0xffffffUL ) #define portMAX_24_BIT_NUMBER ( 0xffffffUL )
@ -238,7 +238,7 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px
/* A save method is being used that requires each task to maintain its /* A save method is being used that requires each task to maintain its
own exec return value. */ own exec return value. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = portINITIAL_EXEC_RETURN; *pxTopOfStack = portINITIAL_EXC_RETURN;
pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */ pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */

4
FreeRTOS/Source/portable/IAR/ARM_CM7/r0p1/portasm.s
View file

@ -101,7 +101,7 @@ xPortPendSVHandler:
/* Save the new top of stack into the first member of the TCB. */ /* Save the new top of stack into the first member of the TCB. */
str r0, [r2] str r0, [r2]
stmdb sp!, {r3} stmdb sp!, {r0, r3}
mov r0, #configMAX_SYSCALL_INTERRUPT_PRIORITY mov r0, #configMAX_SYSCALL_INTERRUPT_PRIORITY
cpsid i cpsid i
msr basepri, r0 msr basepri, r0
@ -111,7 +111,7 @@ xPortPendSVHandler:
bl vTaskSwitchContext bl vTaskSwitchContext
mov r0, #0 mov r0, #0
msr basepri, r0 msr basepri, r0
ldmia sp!, {r3} ldmia sp!, {r0, r3}
/* The first item in pxCurrentTCB is the task top of stack. */ /* The first item in pxCurrentTCB is the task top of stack. */
ldr r1, [r3] ldr r1, [r3]

8
FreeRTOS/Source/portable/MikroC/ARM_CM4F/port.c
View file

@ -120,7 +120,7 @@
/* Constants required to set up the initial stack. */ /* Constants required to set up the initial stack. */
#define portINITIAL_XPSR ( 0x01000000 ) #define portINITIAL_XPSR ( 0x01000000 )
#define portINITIAL_EXEC_RETURN ( 0xfffffffd ) #define portINITIAL_EXC_RETURN ( 0xfffffffd )
/* The systick is a 24-bit counter. */ /* The systick is a 24-bit counter. */
#define portMAX_24_BIT_NUMBER ( 0xffffffUL ) #define portMAX_24_BIT_NUMBER ( 0xffffffUL )
@ -257,7 +257,7 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px
/* A save method is being used that requires each task to maintain its /* A save method is being used that requires each task to maintain its
own exec return value. */ own exec return value. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = portINITIAL_EXEC_RETURN; *pxTopOfStack = portINITIAL_EXC_RETURN;
pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */ pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */
@ -483,7 +483,7 @@ void xPortPendSVHandler( void ) iv IVT_INT_PendSV ics ICS_OFF
str r0, [r2] /* Save the new top of stack into the first member of the TCB. */ str r0, [r2] /* Save the new top of stack into the first member of the TCB. */
stmdb sp!, (r3) stmdb sp!, (r0, r3)
ldr r0, =_ucMaxSyscallInterruptPriority ldr r0, =_ucMaxSyscallInterruptPriority
ldr r1, [r0] ldr r1, [r0]
msr basepri, r1 msr basepri, r1
@ -492,7 +492,7 @@ void xPortPendSVHandler( void ) iv IVT_INT_PendSV ics ICS_OFF
bl _vTaskSwitchContext bl _vTaskSwitchContext
mov r0, #0 mov r0, #0
msr basepri, r0 msr basepri, r0
ldm sp!, (r3) ldm sp!, (r0, r3)
ldr r1, [r3] /* The first item in pxCurrentTCB is the task top of stack. */ ldr r1, [r3] /* The first item in pxCurrentTCB is the task top of stack. */
ldr r0, [r1] ldr r0, [r1]

8
FreeRTOS/Source/portable/RVDS/ARM_CM4F/port.c
View file

@ -142,7 +142,7 @@ r0p1 port. */
/* Constants required to set up the initial stack. */ /* Constants required to set up the initial stack. */
#define portINITIAL_XPSR ( 0x01000000 ) #define portINITIAL_XPSR ( 0x01000000 )
#define portINITIAL_EXEC_RETURN ( 0xfffffffd ) #define portINITIAL_EXC_RETURN ( 0xfffffffd )
/* The systick is a 24-bit counter. */ /* The systick is a 24-bit counter. */
#define portMAX_24_BIT_NUMBER ( 0xffffffUL ) #define portMAX_24_BIT_NUMBER ( 0xffffffUL )
@ -252,7 +252,7 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px
/* A save method is being used that requires each task to maintain its /* A save method is being used that requires each task to maintain its
own exec return value. */ own exec return value. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = portINITIAL_EXEC_RETURN; *pxTopOfStack = portINITIAL_EXC_RETURN;
pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */ pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */
@ -503,7 +503,7 @@ __asm void xPortPendSVHandler( void )
/* Save the new top of stack into the first member of the TCB. */ /* Save the new top of stack into the first member of the TCB. */
str r0, [r2] str r0, [r2]
stmdb sp!, {r3} stmdb sp!, {r0, r3}
mov r0, #configMAX_SYSCALL_INTERRUPT_PRIORITY mov r0, #configMAX_SYSCALL_INTERRUPT_PRIORITY
msr basepri, r0 msr basepri, r0
dsb dsb
@ -511,7 +511,7 @@ __asm void xPortPendSVHandler( void )
bl vTaskSwitchContext bl vTaskSwitchContext
mov r0, #0 mov r0, #0
msr basepri, r0 msr basepri, r0
ldmia sp!, {r3} ldmia sp!, {r0, r3}
/* The first item in pxCurrentTCB is the task top of stack. */ /* The first item in pxCurrentTCB is the task top of stack. */
ldr r1, [r3] ldr r1, [r3]

8
FreeRTOS/Source/portable/RVDS/ARM_CM4_MPU/port.c
View file

@ -125,7 +125,7 @@ task.h is included from an application file. */
/* Constants required to set up the initial stack. */ /* Constants required to set up the initial stack. */
#define portINITIAL_XPSR ( 0x01000000UL ) #define portINITIAL_XPSR ( 0x01000000UL )
#define portINITIAL_EXEC_RETURN ( 0xfffffffdUL ) #define portINITIAL_EXC_RETURN ( 0xfffffffdUL )
#define portINITIAL_CONTROL_IF_UNPRIVILEGED ( 0x03 ) #define portINITIAL_CONTROL_IF_UNPRIVILEGED ( 0x03 )
#define portINITIAL_CONTROL_IF_PRIVILEGED ( 0x02 ) #define portINITIAL_CONTROL_IF_PRIVILEGED ( 0x02 )
@ -240,7 +240,7 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px
/* A save method is being used that requires each task to maintain its /* A save method is being used that requires each task to maintain its
own exec return value. */ own exec return value. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = portINITIAL_EXEC_RETURN; *pxTopOfStack = portINITIAL_EXC_RETURN;
pxTopOfStack -= 9; /* R11, R10, R9, R8, R7, R6, R5 and R4. */ pxTopOfStack -= 9; /* R11, R10, R9, R8, R7, R6, R5 and R4. */
@ -520,7 +520,7 @@ __asm void xPortPendSVHandler( void )
stmdb r0!, {r1, r4-r11, r14} /* Save the remaining registers. */ stmdb r0!, {r1, r4-r11, r14} /* Save the remaining registers. */
str r0, [r2] /* Save the new top of stack into the first member of the TCB. */ str r0, [r2] /* Save the new top of stack into the first member of the TCB. */
stmdb sp!, {r3} stmdb sp!, {r0, r3}
mov r0, #configMAX_SYSCALL_INTERRUPT_PRIORITY mov r0, #configMAX_SYSCALL_INTERRUPT_PRIORITY
msr basepri, r0 msr basepri, r0
dsb dsb
@ -528,7 +528,7 @@ __asm void xPortPendSVHandler( void )
bl vTaskSwitchContext bl vTaskSwitchContext
mov r0, #0 mov r0, #0
msr basepri, r0 msr basepri, r0
ldmia sp!, {r3} ldmia sp!, {r0, r3}
/* Restore the context. */ /* Restore the context. */
ldr r1, [r3] ldr r1, [r3]
ldr r0, [r1] /* The first item in the TCB is the task top of stack. */ ldr r0, [r1] /* The first item in the TCB is the task top of stack. */

8
FreeRTOS/Source/portable/RVDS/ARM_CM7/r0p1/port.c
View file

@ -136,7 +136,7 @@ is defined. */
/* Constants required to set up the initial stack. */ /* Constants required to set up the initial stack. */
#define portINITIAL_XPSR ( 0x01000000 ) #define portINITIAL_XPSR ( 0x01000000 )
#define portINITIAL_EXEC_RETURN ( 0xfffffffd ) #define portINITIAL_EXC_RETURN ( 0xfffffffd )
/* The systick is a 24-bit counter. */ /* The systick is a 24-bit counter. */
#define portMAX_24_BIT_NUMBER ( 0xffffffUL ) #define portMAX_24_BIT_NUMBER ( 0xffffffUL )
@ -246,7 +246,7 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px
/* A save method is being used that requires each task to maintain its /* A save method is being used that requires each task to maintain its
own exec return value. */ own exec return value. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = portINITIAL_EXEC_RETURN; *pxTopOfStack = portINITIAL_EXC_RETURN;
pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */ pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */
@ -487,7 +487,7 @@ __asm void xPortPendSVHandler( void )
/* Save the new top of stack into the first member of the TCB. */ /* Save the new top of stack into the first member of the TCB. */
str r0, [r2] str r0, [r2]
stmdb sp!, {r3} stmdb sp!, {r0, r3}
mov r0, #configMAX_SYSCALL_INTERRUPT_PRIORITY mov r0, #configMAX_SYSCALL_INTERRUPT_PRIORITY
cpsid i cpsid i
msr basepri, r0 msr basepri, r0
@ -497,7 +497,7 @@ __asm void xPortPendSVHandler( void )
bl vTaskSwitchContext bl vTaskSwitchContext
mov r0, #0 mov r0, #0
msr basepri, r0 msr basepri, r0
ldmia sp!, {r3} ldmia sp!, {r0, r3}
/* The first item in pxCurrentTCB is the task top of stack. */ /* The first item in pxCurrentTCB is the task top of stack. */
ldr r1, [r3] ldr r1, [r3]

4
FreeRTOS/Source/portable/Tasking/ARM_CM4F/port.c
View file

@ -94,7 +94,7 @@
/* Constants required to set up the initial stack. */ /* Constants required to set up the initial stack. */
#define portINITIAL_XPSR ( 0x01000000 ) #define portINITIAL_XPSR ( 0x01000000 )
#define portINITIAL_EXEC_RETURN ( 0xfffffffd ) #define portINITIAL_EXC_RETURN ( 0xfffffffd )
/* Let the user override the pre-loading of the initial LR with the address of /* Let the user override the pre-loading of the initial LR with the address of
prvTaskExitError() in case it messes up unwinding of the stack in the prvTaskExitError() in case it messes up unwinding of the stack in the
@ -169,7 +169,7 @@ StackType_t *pxPortInitialiseStack( StackType_t *pxTopOfStack, TaskFunction_t px
/* A save method is being used that requires each task to maintain its /* A save method is being used that requires each task to maintain its
own exec return value. */ own exec return value. */
pxTopOfStack--; pxTopOfStack--;
*pxTopOfStack = portINITIAL_EXEC_RETURN; *pxTopOfStack = portINITIAL_EXC_RETURN;
pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */ pxTopOfStack -= 8; /* R11, R10, R9, R8, R7, R6, R5 and R4. */

4
FreeRTOS/Source/portable/Tasking/ARM_CM4F/port_asm.asm
View file

@ -90,14 +90,14 @@ _vector_14: .type func
;Save the new top of stack into the first member of the TCB. ;Save the new top of stack into the first member of the TCB.
str r0, [r2] str r0, [r2]
stmdb sp!, {r3} stmdb sp!, {r0, r3}
ldr.w r0, =ulMaxSyscallInterruptPriorityConst ldr.w r0, =ulMaxSyscallInterruptPriorityConst
ldr r0, [r0] ldr r0, [r0]
msr basepri, r0 msr basepri, r0
bl vTaskSwitchContext bl vTaskSwitchContext
mov r0, #0 mov r0, #0
msr basepri, r0 msr basepri, r0
ldmia sp!, {r3} ldmia sp!, {r0, r3}
;The first item in pxCurrentTCB is the task top of stack. ;The first item in pxCurrentTCB is the task top of stack.
ldr r1, [r3] ldr r1, [r3]