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Fixed malloc problem

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This commit is contained in:
fares 2019-11-23 01:31:24 -05:00
parent f01936dc92
commit 597165d4e1
1 changed files with 13 additions and 11 deletions
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24
runtime/newlib/newlib.c
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@ -237,8 +237,8 @@ static int head_end = (int) 0x20000000;
void * _sbrk (int nbytes)
{
//vx_print_str("Hello from _sbrk\n");
//vx_printf("nbytes: ", nbytes);
vx_print_str("Hello from _sbrk\n");
vx_printf("nbytes: ", nbytes);
//if (nbytes < 0) //vx_print_str("nbytes less than zero\n");
// printf("nBytes: %d\n", nbytes);
@ -248,19 +248,21 @@ void * _sbrk (int nbytes)
nbytes = nbytes * -1;
}
if (nbytes > 10240)
{
nbytes = 10240;
}
vx_printf("New nbytes: ", nbytes);
// if (nbytes > 10240)
// {
// nbytes = 10240;
// }
// if (((unsigned) head_end) > ((unsigned) (heap_ptr + nbytes)))
if (true)
{
int base = heap_start;
heap_start += nbytes;
////vx_print_str("_sbrk returning: ");
//vx_print_hex((unsigned) base);
////vx_print_str("\n");
vx_print_str("_sbrk returning: ");
vx_print_hex((unsigned) base);
vx_print_str("\n");
return (void *) base;
}
else
@ -303,7 +305,7 @@ int _open(const char *name, int flags, int mode)
void _kill()
{
vx_print_str("ERROR: _kill not yet implemented\n");
vx_tmc(0);
}
unsigned _getpid()
@ -320,7 +322,7 @@ static int curr_time = 0;
int _gettimeofday()
{
vx_print_str("ERROR: _gettimeofday not yet implemented\n");
// vx_print_str("ERROR: _gettimeofday not yet implemented\n");
return curr_time++;
}