uGFX
/
ugfx
2
0
Fork 0
Code Issues 2 Pull Requests Projects Releases Wiki Activity
Browse Source

Fix a bug in the Cortex M0 task switcher 

Start of Keil compiler CPU specific switching
remotes/origin_old/ugfx_release_2.7
inmarket 7 years ago
parent
4b61ae71fe
commit
c1e2863078
5 changed files with 267 additions and 107 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 2
      docs/releases.txt
  2. 116
      src/gos/gos_x_threads.c
  3. 103
      src/gos/gos_x_threads_cortexm01.h
  4. 74
      src/gos/gos_x_threads_cortexm347.h
  5. 79
      src/gos/gos_x_threads_cortexm47fp.h

2
docs/releases.txt
View File

@ -25,6 +25,8 @@ FEATURE: Added gdispAddFont() for adding a dynamic font to the permanent font li
FEATURE: Added gmiscHittestPoly() for checking whether a point is inside of a polygon
FIX: Fixed strange multi-thread issues in GEVENT
FEATURE: Added ILI9488 driver
FEATURE: Added the ability to display the detected compiler
FIX: Fixed an illegal instruction in the Cortex M0 task switcher
*** Release 2.6 ***

116
src/gos/gos_x_threads.c
View File

@ -189,118 +189,19 @@ static threadQ deadQ; // Where we put threads waiting to be deallocated
static thread * current; // The current running thread
static thread mainthread; // The main thread context
#if GFX_CPU == GFX_CPU_CORTEX_M0 || GFX_CPU == GFX_CPU_CORTEX_M1
// Use the EABI calling standard (ARM's AAPCS) - Save r4 - r11
// The context is saved at the current stack location and a pointer is maintained in the thread structure.
#define _gfxThreadsInit()
static __attribute__((pcs("aapcs"),naked)) void _gfxTaskSwitch(thread *oldt, thread *newt) {
__asm__ volatile ( "push {r4, r5, r6, r7, lr} \n\t"
"mov r4, r8 \n\t"
"mov r5, r9 \n\t"
"mov r6, r10 \n\t"
"mov r7, r11 \n\t"
"push {r4, r5, r6, r7} \n\t"
"str sp, %[oldtcxt] \n\t"
"ldr sp, %[newtcxt] \n\t"
"pop {r4, r5, r6, r7} \n\t"
"mov r8, r4 \n\t"
"mov r9, r5 \n\t"
"mov r10, r6 \n\t"
"mov r11, r7 \n\t"
"pop {r4, r5, r6, r7, pc} \n\t"
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
}
static __attribute__((pcs("aapcs"),naked)) void _gfxStartThread(thread *oldt, thread *newt) {
newt->cxt = (char *)newt + newt->size;
__asm__ volatile ( "push {r4, r5, r6, r7, r8, r9, r10, r11, lr} \n\t" // save current context
"str sp, %[oldtcxt] \n\t" // save context pointer
"ldr sp, %[newtcxt] \n\t" // load new context pointer
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
// Run the users function
gfxThreadExit(current->fn(current->param));
}
#undef GFX_THREADS_DONE
#if GFX_CPU == GFX_CPU_CORTEX_M0 || GFX_CPU == GFX_CPU_CORTEX_M1
#include "gos_x_threads_cortexm01.h"
#elif GFX_CPU == GFX_CPU_CORTEX_M3 || GFX_CPU == GFX_CPU_CORTEX_M4 || GFX_CPU == GFX_CPU_CORTEX_M7
// Use the EABI calling standard (ARM's AAPCS) - Save r4 - r11
// The context is saved at the current stack location and a pointer is maintained in the thread structure.
#if CORTEX_USE_FPU
#warning "GOS Threads: You have specified GFX_CPU=GFX_CPU_CORTX_M? with no hardware floating point support but CORTEX_USE_FPU is TRUE. Try using GFX_CPU_GFX_CPU_CORTEX_M?_FP instead"
#endif
#define _gfxThreadsInit()
static __attribute__((pcs("aapcs"),naked)) void _gfxTaskSwitch(thread *oldt, thread *newt) {
__asm__ volatile ( "push {r4, r5, r6, r7, r8, r9, r10, r11, lr} \n\t"
"str sp, %[oldtcxt] \n\t"
"ldr sp, %[newtcxt] \n\t"
"pop {r4, r5, r6, r7, r8, r9, r10, r11, pc} \n\t"
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
}
static __attribute__((pcs("aapcs"),naked)) void _gfxStartThread(thread *oldt, thread *newt) {
newt->cxt = (char *)newt + newt->size;
__asm__ volatile ( "push {r4, r5, r6, r7, r8, r9, r10, r11, lr} \n\t"
"str sp, %[oldtcxt] \n\t"
"ldr sp, %[newtcxt] \n\t"
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
// Run the users function
gfxThreadExit(current->fn(current->param));
}
#include "gos_x_threads_cortexm347.h"
#elif GFX_CPU == GFX_CPU_CORTEX_M4_FP || GFX_CPU == GFX_CPU_CORTEX_M7_FP
#include "gos_x_threads_cortexm47fp.h"
#endif
// Use the EABI calling standard (ARM's AAPCS) - Save r4 - r11 and floating point
// The context is saved at the current stack location and a pointer is maintained in the thread structure.
#if !CORTEX_USE_FPU
#warning "GOS Threads: You have specified GFX_CPU=GFX_CPU_CORTX_M?_FP with hardware floating point support but CORTEX_USE_FPU is FALSE. Try using GFX_CPU_GFX_CPU_CORTEX_M? instead"
#endif
#define _gfxThreadsInit()
static __attribute__((pcs("aapcs-vfp"),naked)) void _gfxTaskSwitch(thread *oldt, thread *newt) {
__asm__ volatile ( "push {r4, r5, r6, r7, r8, r9, r10, r11, lr} \n\t"
"vpush {s16-s31} \n\t"
"str sp, %[oldtcxt] \n\t"
"ldr sp, %[newtcxt] \n\t"
"vpop {s16-s31} \n\t"
"pop {r4, r5, r6, r7, r8, r9, r10, r11, pc} \n\t"
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
}
static __attribute__((pcs("aapcs-vfp"),naked)) void _gfxStartThread(thread *oldt, thread *newt) {
newt->cxt = (char *)newt + newt->size;
__asm__ volatile ( "push {r4, r5, r6, r7, r8, r9, r10, r11, lr} \n\t"
"vpush {s16-s31} \n\t"
"str sp, %[oldtcxt] \n\t"
"ldr sp, %[newtcxt] \n\t"
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
// Run the users function
gfxThreadExit(current->fn(current->param));
}
#ifndef GFX_THREADS_DONE
#define GFX_THREADS_DONE
#else
#include <string.h> // Prototype for memcpy()
#include <setjmp.h>
@ -514,6 +415,7 @@ static thread mainthread; // The main thread context
#define _gfxTaskSwitch(oldt, newt) _gfxXSwitch(oldt, newt, FALSE)
#define _gfxStartThread(oldt, newt) _gfxXSwitch(oldt, newt, TRUE)
#endif
#undef GFX_THREADS_DONE
static void Qinit(threadQ * q) {
q->head = q->tail = 0;

103
src/gos/gos_x_threads_cortexm01.h
View File

@ -0,0 +1,103 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* Thread Switching Functions for the Cortex M0 & M1
*
* Use the EABI calling standard (ARM's AAPCS) - Save r4 - r11
* The context is saved at the current stack location and a pointer is maintained in the thread structure.
*/
#if CORTEX_USE_FPU
#warning "GOS Threads: You have specified GFX_CPU=GFX_CPU_CORTX_M? with no hardware floating point support but CORTEX_USE_FPU is TRUE. Try using GFX_CPU_GFX_CPU_CORTEX_M?_FP instead"
#endif
#if GFX_COMPILER == GFX_COMPILER_GCC || GFX_COMPILER == GFX_COMPILER_CYGWIN || GFX_COMPILER == GFX_COMPILER_MINGW32 || GFX_COMPILER == GFX_COMPILER_MINGW64
#define GFX_THREADS_DONE
#define _gfxThreadsInit()
static __attribute__((pcs("aapcs"),naked)) void _gfxTaskSwitch(thread *oldt, thread *newt) {
__asm__ volatile ( "push {r4, r5, r6, r7, lr} \n\t"
"mov r4, r8 \n\t"
"mov r5, r9 \n\t"
"mov r6, r10 \n\t"
"mov r7, r11 \n\t"
"push {r4, r5, r6, r7} \n\t"
"str sp, %[oldtcxt] \n\t"
"ldr sp, %[newtcxt] \n\t"
"pop {r4, r5, r6, r7} \n\t"
"mov r8, r4 \n\t"
"mov r9, r5 \n\t"
"mov r10, r6 \n\t"
"mov r11, r7 \n\t"
"pop {r4, r5, r6, r7, pc} \n\t"
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
}
static __attribute__((pcs("aapcs"),naked)) void _gfxStartThread(thread *oldt, thread *newt) {
newt->cxt = (char *)newt + newt->size;
__asm__ volatile ( "push {r4, r5, r6, r7, lr} \n\t"
"mov r4, r8 \n\t"
"mov r5, r9 \n\t"
"mov r6, r10 \n\t"
"mov r7, r11 \n\t"
"push {r4, r5, r6, r7} \n\t"
"str sp, %[oldtcxt] \n\t"
"ldr sp, %[newtcxt] \n\t"
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
// Run the users function
gfxThreadExit(current->fn(current->param));
}
#elif GFX_COMPILER == GFX_COMPILER_KEIL || GFX_COMPILER == GFX_COMPILER_ARMCC
static /*__arm*/ void _gfxTaskSwitch(thread *oldt, thread *newt) {
/* push {r4, r5, r6, r7, lr}
mov r4, r8
mov r5, r9
mov r6, r10
mov r7, r11
push {r4, r5, r6, r7}
str sp, %[oldtcxt]
ldr sp, %[newtcxt]
pop {r4, r5, r6, r7}
mov r8, r4
mov r9, r5
mov r10, r6
mov r11, r7
pop {r4, r5, r6, r7, pc}
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
*/ }
static /* __arm */ void _gfxStartThread(thread *oldt, thread *newt) {
newt->cxt = (char *)newt + newt->size;
/* push {r4, r5, r6, r7, lr}
mov r4, r8
mov r5, r9
mov r6, r10
mov r7, r11
push {r4, r5, r6, r7}
str sp, %[oldtcxt]
ldr sp, %[newtcxt]
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
*/
// Run the users function
gfxThreadExit(current->fn(current->param));
}
#else
#warning "GOS: Threads: You have specified a specific CPU but your compiler is not supported. Defaulting to CLIB switching"
#endif

74
src/gos/gos_x_threads_cortexm347.h
View File

@ -0,0 +1,74 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* Thread Switching Functions for the Cortex M3, M4 & M7 without hardware floating point
*
* Use the EABI calling standard (ARM's AAPCS) - Save r4 - r11
* The context is saved at the current stack location and a pointer is maintained in the thread structure.
*/
#if CORTEX_USE_FPU
#warning "GOS Threads: You have specified GFX_CPU=GFX_CPU_CORTX_M? with no hardware floating point support but CORTEX_USE_FPU is TRUE. Try using GFX_CPU_GFX_CPU_CORTEX_M?_FP instead"
#endif
#if GFX_COMPILER == GFX_COMPILER_GCC || GFX_COMPILER == GFX_COMPILER_CYGWIN || GFX_COMPILER == GFX_COMPILER_MINGW32 || GFX_COMPILER == GFX_COMPILER_MINGW64
#define GFX_THREADS_DONE
#define _gfxThreadsInit()
static __attribute__((pcs("aapcs"),naked)) void _gfxTaskSwitch(thread *oldt, thread *newt) {
__asm__ volatile ( "push {r4, r5, r6, r7, r8, r9, r10, r11, lr} \n\t"
"str sp, %[oldtcxt] \n\t"
"ldr sp, %[newtcxt] \n\t"
"pop {r4, r5, r6, r7, r8, r9, r10, r11, pc} \n\t"
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
}
static __attribute__((pcs("aapcs"),naked)) void _gfxStartThread(thread *oldt, thread *newt) {
newt->cxt = (char *)newt + newt->size;
__asm__ volatile ( "push {r4, r5, r6, r7, r8, r9, r10, r11, lr} \n\t"
"str sp, %[oldtcxt] \n\t"
"ldr sp, %[newtcxt] \n\t"
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
// Run the users function
gfxThreadExit(current->fn(current->param));
}
#elif GFX_COMPILER == GFX_COMPILER_KEIL || GFX_COMPILER == GFX_COMPILER_ARMCC
static /*__arm*/ void _gfxTaskSwitch(thread *oldt, thread *newt) {
/* push {r4, r5, r6, r7, r8, r9, r10, r11, lr}
str sp, %[oldtcxt]
ldr sp, %[newtcxt]
pop {r4, r5, r6, r7, r8, r9, r10, r11, pc}
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
*/ }
static /* __arm */ void _gfxStartThread(thread *oldt, thread *newt) {
newt->cxt = (char *)newt + newt->size;
/* push {r4, r5, r6, r7, r8, r9, r10, r11, lr}
str sp, %[oldtcxt]
ldr sp, %[newtcxt]
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
*/
// Run the users function
gfxThreadExit(current->fn(current->param));
}
#else
#warning "GOS: Threads: You have specified a specific CPU but your compiler is not supported. Defaulting to CLIB switching"
#endif

79
src/gos/gos_x_threads_cortexm47fp.h
View File

@ -0,0 +1,79 @@
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* Thread Switching Functions for the Cortex M4 & M7 with hardware floating point
*
* Use the EABI calling standard (ARM's AAPCS) - Save r4 - r11 and floating point
* The context is saved at the current stack location and a pointer is maintained in the thread structure.
*/
#if !CORTEX_USE_FPU
#warning "GOS Threads: You have specified GFX_CPU=GFX_CPU_CORTX_M?_FP with hardware floating point support but CORTEX_USE_FPU is FALSE. Try using GFX_CPU_GFX_CPU_CORTEX_M? instead"
#endif
#if GFX_COMPILER == GFX_COMPILER_GCC || GFX_COMPILER == GFX_COMPILER_CYGWIN || GFX_COMPILER == GFX_COMPILER_MINGW32 || GFX_COMPILER == GFX_COMPILER_MINGW64
#define GFX_THREADS_DONE
#define _gfxThreadsInit()
static __attribute__((pcs("aapcs-vfp"),naked)) void _gfxTaskSwitch(thread *oldt, thread *newt) {
__asm__ volatile ( "push {r4, r5, r6, r7, r8, r9, r10, r11, lr} \n\t"
"vpush {s16-s31} \n\t"
"str sp, %[oldtcxt] \n\t"
"ldr sp, %[newtcxt] \n\t"
"vpop {s16-s31} \n\t"
"pop {r4, r5, r6, r7, r8, r9, r10, r11, pc} \n\t"
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
}
static __attribute__((pcs("aapcs-vfp"),naked)) void _gfxStartThread(thread *oldt, thread *newt) {
newt->cxt = (char *)newt + newt->size;
__asm__ volatile ( "push {r4, r5, r6, r7, r8, r9, r10, r11, lr} \n\t"
"vpush {s16-s31} \n\t"
"str sp, %[oldtcxt] \n\t"
"ldr sp, %[newtcxt] \n\t"
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
// Run the users function
gfxThreadExit(current->fn(current->param));
}
#elif GFX_COMPILER == GFX_COMPILER_KEIL || GFX_COMPILER == GFX_COMPILER_ARMCC
static /*__arm*/ void _gfxTaskSwitch(thread *oldt, thread *newt) {
/* push {r4, r5, r6, r7, r8, r9, r10, r11, lr}
vpush {s16-s31}
str sp, %[oldtcxt]
ldr sp, %[newtcxt]
vpop {s16-s31}
pop {r4, r5, r6, r7, r8, r9, r10, r11, pc}
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
*/ }
static /* __arm */ void _gfxStartThread(thread *oldt, thread *newt) {
newt->cxt = (char *)newt + newt->size;
/* push {r4, r5, r6, r7, r8, r9, r10, r11, lr}
vpush {s16-s31}
str sp, %[oldtcxt]
ldr sp, %[newtcxt]
: [newtcxt] "=m" (newt->cxt)
: [oldtcxt] "m" (oldt->cxt)
: "memory");
*/
// Run the users function
gfxThreadExit(current->fn(current->param));
}
#else
#warning "GOS: Threads: You have specified a specific CPU but your compiler is not supported. Defaulting to CLIB switching"
#endif
Write Preview
Loading…
Cancel
Save