added support for 64-bit architectures, as already added on the cooja mtarch clone (patch provided by Jesper Karlsson and David Gustafsson)
This commit is contained in:
fros4943
parent
da8ee90ef3
commit
4275ff4a9c
128
cpu/x86/mtarch.c
128
cpu/x86/mtarch.c
|
|
@ -2,8 +2,29 @@
|
|||
#include <stdio.h>
|
||||
#include "sys/mt.h"
|
||||
|
||||
#ifndef __WORDSIZE
|
||||
#define __WORDSIZE 32
|
||||
#endif /* __WORDSIZE */
|
||||
|
||||
#ifndef ON_64BIT_ARCH
|
||||
#if __WORDSIZE == 64
|
||||
#define ON_64BIT_ARCH 1
|
||||
#else /* ON_64BIT_ARCH */
|
||||
#define ON_64BIT_ARCH 0
|
||||
#endif /* __WORDSIZE == 64 */
|
||||
#endif /* ON_64BIT_ARCH */
|
||||
|
||||
struct frame {
|
||||
unsigned long flags;
|
||||
#if ON_64BIT_ARCH
|
||||
unsigned long rbp;
|
||||
unsigned long rdi;
|
||||
unsigned long rsi;
|
||||
unsigned long rdx;
|
||||
unsigned long rcx;
|
||||
unsigned long rbx;
|
||||
unsigned long rax;
|
||||
#else /* ON_64BIT_ARCH */
|
||||
unsigned long ebp;
|
||||
unsigned long edi;
|
||||
unsigned long esi;
|
||||
|
|
@ -11,24 +32,22 @@ struct frame {
|
|||
unsigned long ecx;
|
||||
unsigned long ebx;
|
||||
unsigned long eax;
|
||||
#endif /* ON_64BIT_ARCH */
|
||||
unsigned long retaddr;
|
||||
unsigned long retaddr2;
|
||||
unsigned long data;
|
||||
};
|
||||
|
||||
/*--------------------------------------------------------------------------*/
|
||||
void
|
||||
mtarch_init(void)
|
||||
{
|
||||
|
||||
}
|
||||
/*--------------------------------------------------------------------------*/
|
||||
void
|
||||
mtarch_start(struct mtarch_thread *t,
|
||||
void (*function)(void *), void *data)
|
||||
void (*function)(void *), void *data)
|
||||
{
|
||||
|
||||
struct frame *f = (struct frame *)&t->stack[MTARCH_STACKSIZE - sizeof(struct frame)/4];
|
||||
struct frame *f = (struct frame *)&t->stack[MTARCH_STACKSIZE - sizeof(struct frame)/sizeof(unsigned long)];
|
||||
int i;
|
||||
|
||||
for(i = 0; i < MTARCH_STACKSIZE; ++i) {
|
||||
|
|
@ -39,38 +58,89 @@ mtarch_start(struct mtarch_thread *t,
|
|||
f->retaddr = (unsigned long)function;
|
||||
f->data = (unsigned long)data;
|
||||
t->sp = (unsigned long)&f->flags;
|
||||
#if ON_64BIT_ARCH
|
||||
f->rbp = (unsigned long)&f->rax;
|
||||
#else /* ON_64BIT_ARCH */
|
||||
f->ebp = (unsigned long)&f->eax;
|
||||
#endif /* ON_64BIT_ARCH */
|
||||
}
|
||||
/*--------------------------------------------------------------------------*/
|
||||
static unsigned long spsave, sptmp;
|
||||
static struct mtarch_thread *running_thread;
|
||||
|
||||
/*--------------------------------------------------------------------------*/
|
||||
static void
|
||||
sw(void)
|
||||
{
|
||||
/* Store registers */
|
||||
#if ON_64BIT_ARCH
|
||||
__asm__ (
|
||||
"pushq %rax\n\t"
|
||||
"pushq %rbx\n\t"
|
||||
"pushq %rcx\n\t"
|
||||
"pushq %rdx\n\t"
|
||||
"pushq %rsi\n\t"
|
||||
"pushq %rdi\n\t"
|
||||
"pushq %rbp\n\t"
|
||||
"pushq %rbp\n\t");
|
||||
#else /* ON_64BIT_ARCH */
|
||||
__asm__ (
|
||||
"pushl %eax\n\t"
|
||||
"pushl %ebx\n\t"
|
||||
"pushl %ecx\n\t"
|
||||
"pushl %edx\n\t"
|
||||
"pushl %esi\n\t"
|
||||
"pushl %edi\n\t"
|
||||
"pushl %ebp\n\t"
|
||||
"pushl %ebp\n\t");
|
||||
#endif /* ON_64BIT_ARCH */
|
||||
|
||||
asm("pushl %eax");
|
||||
asm("pushl %ebx");
|
||||
asm("pushl %ecx");
|
||||
asm("pushl %edx");
|
||||
asm("pushl %esi");
|
||||
asm("pushl %edi");
|
||||
asm("pushl %ebp");
|
||||
asm("pushl %ebp"); /* XXX: should push FPU flags here. */
|
||||
asm("movl %esp, spsave");
|
||||
/* Switch stack pointer */
|
||||
#if ON_64BIT_ARCH
|
||||
__asm__ ("movq %0, %%rax\n\t" : : "m" (running_thread));
|
||||
__asm__ (
|
||||
"movq (%rax), %rbx\n\t"
|
||||
"movq %rsp, (%rax)\n\t"
|
||||
"movq %rbx, %rsp\n\t"
|
||||
);
|
||||
#else /* ON_64BIT_ARCH */
|
||||
__asm__ ("movl %0, %%eax\n\t" : : "m" (running_thread));
|
||||
__asm__ (
|
||||
"movl (%eax), %ebx\n\t"
|
||||
"movl %esp, (%eax)\n\t"
|
||||
"movl %ebx, %esp\n\t"
|
||||
);
|
||||
#endif /* ON_64BIT_ARCH */
|
||||
|
||||
sptmp = running_thread->sp;
|
||||
running_thread->sp = spsave;
|
||||
/* Restore previous registers */
|
||||
#if ON_64BIT_ARCH
|
||||
__asm__ (
|
||||
"popq %rbp\n\t"
|
||||
"popq %rbp\n\t"
|
||||
"popq %rdi\n\t"
|
||||
"popq %rsi\n\t"
|
||||
"popq %rdx\n\t"
|
||||
"popq %rcx\n\t"
|
||||
"popq %rbx\n\t"
|
||||
"popq %rax\n\t"
|
||||
|
||||
"leave\n\t"
|
||||
"ret\n\t"
|
||||
);
|
||||
#else /* ON_64BIT_ARCH */
|
||||
__asm__ (
|
||||
"popl %ebp\n\t"
|
||||
"popl %ebp\n\t"
|
||||
"popl %edi\n\t"
|
||||
"popl %esi\n\t"
|
||||
"popl %edx\n\t"
|
||||
"popl %ecx\n\t"
|
||||
"popl %ebx\n\t"
|
||||
"popl %eax\n\t"
|
||||
|
||||
"leave\n\t"
|
||||
"ret\n\t"
|
||||
);
|
||||
#endif /* ON_64BIT_ARCH */
|
||||
|
||||
asm("movl sptmp, %esp");
|
||||
asm("popl %ebp"); /* XXX: should pop FPU flags here. */
|
||||
asm("popl %ebp");
|
||||
asm("popl %edi");
|
||||
asm("popl %esi");
|
||||
asm("popl %edx");
|
||||
asm("popl %ecx");
|
||||
asm("popl %ebx");
|
||||
asm("popl %eax");
|
||||
}
|
||||
|
||||
/*--------------------------------------------------------------------------*/
|
||||
|
|
@ -85,7 +155,6 @@ mtarch_exec(struct mtarch_thread *t)
|
|||
void
|
||||
mtarch_remove(void)
|
||||
{
|
||||
|
||||
}
|
||||
/*--------------------------------------------------------------------------*/
|
||||
void
|
||||
|
|
@ -97,13 +166,11 @@ mtarch_yield(void)
|
|||
void
|
||||
mtarch_pstop(void)
|
||||
{
|
||||
|
||||
}
|
||||
/*--------------------------------------------------------------------------*/
|
||||
void
|
||||
mtarch_pstart(void)
|
||||
{
|
||||
|
||||
}
|
||||
/*--------------------------------------------------------------------------*/
|
||||
int
|
||||
|
|
@ -115,5 +182,6 @@ mtarch_stack_usage(struct mt_thread *t)
|
|||
return MTARCH_STACKSIZE - i;
|
||||
}
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
/*--------------------------------------------------------------------------*/
|
||||
|
|
|
|||
Loading…
Reference in a new issue