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Added a function for measuring stack usage

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This commit is contained in:
adamdunkels 2006-09-26 20:56:42 +00:00
parent 25a132cff2
commit e072e4084a
4 changed files with 73 additions and 30 deletions
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20
cpu/msp430/mtarch.c
View file

@ -28,7 +28,7 @@
* *
* This file is part of the Contiki operating system. * This file is part of the Contiki operating system.
* *
* @(#)$Id: mtarch.c,v 1.2 2006/09/01 22:56:18 adamdunkels Exp $ * @(#)$Id: mtarch.c,v 1.3 2006/09/26 20:56:56 adamdunkels Exp $
*/ */
#include <stdio.h> #include <stdio.h>
@ -46,17 +46,22 @@ void
mtarch_start(struct mtarch_thread *t, mtarch_start(struct mtarch_thread *t,
void (*function)(void *), void *data) void (*function)(void *), void *data)
{ {
int i;
for(i = 0; i < MTARCH_STACKSIZE; ++i) {
t->stack[i] = i;
}
t->sp = &t->stack[MTARCH_STACKSIZE - 1]; t->sp = &t->stack[MTARCH_STACKSIZE - 1];
*t->sp = (unsigned short)mt_exit; *t->sp = (unsigned short)mt_exit;
--t->sp; --t->sp;
*t->sp = (unsigned short)function; *t->sp = (unsigned short)function;
--t->sp; --t->sp;
/* Space for registers. */ /* Space for registers. */
t->sp -= 11; t->sp -= 11;
} }
/*--------------------------------------------------------------------------*/ /*--------------------------------------------------------------------------*/
static unsigned short *sptmp; static unsigned short *sptmp;
@ -130,3 +135,14 @@ mtarch_pstart(void)
} }
/*--------------------------------------------------------------------------*/ /*--------------------------------------------------------------------------*/
int
mtarch_stack_usage(struct mt_thread *t)
{
int i;
for(i = 0; i < MTARCH_STACKSIZE; ++i) {
if(t->thread.stack[i] != (unsigned short)i) {
return MTARCH_STACKSIZE - i;
}
}
}
/*--------------------------------------------------------------------------*/

9
cpu/msp430/mtarch.h
View file

@ -28,17 +28,22 @@
* *
* This file is part of the Contiki operating system. * This file is part of the Contiki operating system.
* *
* @(#)$Id: mtarch.h,v 1.1 2006/06/17 22:41:21 adamdunkels Exp $ * @(#)$Id: mtarch.h,v 1.2 2006/09/26 20:56:56 adamdunkels Exp $
*/ */
#ifndef __MTARCH_H__ #ifndef __MTARCH_H__
#define __MTARCH_H__ #define __MTARCH_H__
#define MTARCH_STACKSIZE 64 #define MTARCH_STACKSIZE 128
struct mtarch_thread { struct mtarch_thread {
unsigned short stack[MTARCH_STACKSIZE]; unsigned short stack[MTARCH_STACKSIZE];
unsigned short *sp; unsigned short *sp;
}; };
struct mt_thread;
int mtarch_stack_usage(struct mt_thread *t);
#endif /* __MTARCH_H__ */ #endif /* __MTARCH_H__ */

18
cpu/x86/mtarch.c
View file

@ -27,7 +27,14 @@ void
mtarch_start(struct mtarch_thread *t, 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)/4];
int i;
for(i = 0; i < MTARCH_STACKSIZE; ++i) {
t->stack[i] = i;
}
memset(f, 0, sizeof(struct frame)); memset(f, 0, sizeof(struct frame));
f->retaddr = (unsigned long)function; f->retaddr = (unsigned long)function;
f->data = (unsigned long)data; f->data = (unsigned long)data;
@ -99,3 +106,14 @@ mtarch_pstart(void)
} }
/*--------------------------------------------------------------------------*/ /*--------------------------------------------------------------------------*/
int
mtarch_stack_usage(struct mt_thread *t)
{
int i;
for(i = 0; i < MTARCH_STACKSIZE; ++i) {
if(t->thread.stack[i] != i) {
return MTARCH_STACKSIZE - i;
}
}
}
/*--------------------------------------------------------------------------*/

4
cpu/x86/mtarch.h
View file

@ -41,5 +41,9 @@ struct mtarch_thread {
unsigned long sp; unsigned long sp;
}; };
struct mt_thread;
int mtarch_stack_usage(struct mt_thread *t);
#endif /* __MTARCH_H__ */ #endif /* __MTARCH_H__ */