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/* brk.c - Change data segment size */
/* Written 2000 by Werner Almesberger */
#include <stddef.h>
#include <unistd.h>
#include <sys/types.h>
char *__current_brk; /* Common with sbrk.c */
/*
* The Linux brk() isn't what most people expect, so we call the
* system call __brk() and provide a wrapper.
*/
int brk(void *end_data_segment)
{
char *new_brk;
new_brk = __brk(end_data_segment);
if (new_brk != end_data_segment) return -1;
__current_brk = new_brk;
return 0;
}
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