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Now fills the stack with 0xdeadbeef

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@1290 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Linus Nielsen Feltzing 2002-07-01 21:14:20 +00:00
parent 6bb93847a4
commit 9f690b8cf8
1 changed files with 12 additions and 0 deletions
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12
firmware/thread.c
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@ -99,10 +99,22 @@ void switch_thread(void)
*/ */
int create_thread(void* function, void* stack, int stack_size) int create_thread(void* function, void* stack, int stack_size)
{ {
unsigned int i;
unsigned int stacklen;
unsigned int *stackptr;
if (num_threads >= MAXTHREADS) if (num_threads >= MAXTHREADS)
return -1; return -1;
else else
{ {
/* Munge the stack to make it easy to spot stack overflows */
stacklen = stack_size / 4;
stackptr = stack;
for(i = 0;i < stacklen;i++)
{
stackptr[i] = 0xdeadbeef;
}
struct regs* regs = &thread_contexts[num_threads++]; struct regs* regs = &thread_contexts[num_threads++];
store_context(regs); store_context(regs);
/* Subtract 4 to leave room for the PR push in ldctx() /* Subtract 4 to leave room for the PR push in ldctx()