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Stubbed out newlib.

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This commit is contained in:
wilkie
2010-04-04 21:50:13 -04:00
parent fb54b69058
commit 675988ffd0
2 changed files with 7 additions and 20 deletions
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1
newlib-files/crt0.c
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@@ -18,6 +18,5 @@ _start(){
// XXX: get argc and argv // XXX: get argc and argv
exit(main(0,0, __env)); exit(main(0,0, __env));
} }

26
newlib-files/syscalls.c
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@@ -7,7 +7,6 @@
int int
_exit(int val){ _exit(int val){
exit(val);
return (-1); return (-1);
} }
@@ -139,6 +138,7 @@ sbrk(int nbytes){
static caddr_t heap_ptr = NULL; static caddr_t heap_ptr = NULL;
caddr_t base; caddr_t base;
// TODO: REPLACE allocPage with a call to a page allocator
int temp; int temp;
if(heap_ptr == NULL){ if(heap_ptr == NULL){
@@ -160,35 +160,23 @@ sbrk(int nbytes){
} }
while(nbytes > PAGE_SIZE){ while(nbytes > PAGE_SIZE){
allocPage(heap_ptr); //
// allocPage(heap_ptr);
//
nbytes -= (int) PAGE_SIZE; nbytes -= (int) PAGE_SIZE;
heap_ptr = heap_ptr + PAGE_SIZE; heap_ptr = heap_ptr + PAGE_SIZE;
} }
if( nbytes > 0){ if( nbytes > 0){
allocPage(heap_ptr); //
// allocPage(heap_ptr);
//
heap_ptr += nbytes; heap_ptr += nbytes;
} }
return base; return base;
/*
static caddr_t heap_ptr = NULL;
caddr_t base;
if (heap_ptr == NULL) {
heap_ptr = (caddr_t)&_end;
}
if ((RAMSIZE - heap_ptr) >= 0) {
base = heap_ptr;
heap_ptr += nbytes;
return (base);
} else {
errno = ENOMEM;
return ((caddr_t)-1);
}*/
} }