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merge with gcc 4.5.0 support and binutils per-version patches from xomb branch

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wolfwood
2010-11-20 22:39:17 -05:00
parent 541873779c cf06639c2d
commit 08a5ce4e58
8 changed files with 395 additions and 84 deletions
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52
newlib-files/syscalls.c
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@@ -69,11 +69,23 @@ wait(int *status) {
* returns 0 if not. Since we're hooked up to a
* serial port, we'll say yes and return a 1.
*/
int gibOpen(const char* name, unsigned int nameLen, char readOnly);
int gibRead(int fd, void* buf, unsigned int len);
int gibWrite(int fd, void* buf, unsigned int len);
unsigned long long initHeap();
int
isatty(fd)
int fd;
{
return (1);
if(fd < 3){
return 1;
}else{
return 0;
}
}
@@ -116,6 +128,12 @@ stat(const char* file, struct stat *st) {
return 0;
}
int
link(char *old, char *new) {
errno = EMLINK;
return -1;
}
int
unlink(char *name) {
errno = ENOENT;
@@ -123,21 +141,9 @@ unlink(char *name) {
}
int
write(int file, char *ptr, int len) {
//XXX: write to stdout
return -1;
}
// --- Memory ---
/* _end is set in the linker command file */
extern caddr_t _end;
#define PAGE_SIZE 4096ULL
#define PAGE_MASK 0xFFFFFFFFFFFFF000ULL
#define HEAP_ADDR (((unsigned long long)&_end + PAGE_SIZE) & PAGE_MASK)
/*
* sbrk -- changes heap size size. Get nbytes more
@@ -146,20 +152,25 @@ extern caddr_t _end;
*/
caddr_t
sbrk(int nbytes){
static caddr_t heap_ptr = NULL;
static unsigned long long heap_ptr = 0;
caddr_t base;
// TODO: REPLACE allocPage with a call to a page allocator
int temp;
if(heap_ptr == NULL){
heap_ptr = (caddr_t)HEAP_ADDR;
if(heap_ptr == 0){
heap_ptr = initHeap();
}
base = heap_ptr;
base = (caddr_t)heap_ptr;
if(((unsigned long long)heap_ptr & ~PAGE_MASK) != 0ULL){
temp = (PAGE_SIZE - ((unsigned long long)heap_ptr & ~PAGE_MASK));
if(nbytes < 0){
heap_ptr -= nbytes;
return base;
}
if( (heap_ptr & ~PAGE_MASK) != 0ULL){
temp = (PAGE_SIZE - (heap_ptr & ~PAGE_MASK));
if( nbytes < temp ){
heap_ptr += nbytes;
@@ -192,6 +203,9 @@ sbrk(int nbytes){
// --- Other ---
int gettimeofday(struct timeval *p, void *z){
return -1;
}
//int times(struct tms *buf) {
//int gettimeofday(struct timeval *p, struct timezone *z){