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FreeRTOS-Kernel/FreeRTOS/Demo/RISC-V-Qemu-sifive_e-Freedo.../freedom-e-sdk/libwrap/sys/sbrk.c

19 lines
375 B
C

/* See LICENSE of license details. */
#include <stddef.h>
#include "weak_under_alias.h"
void *__wrap_sbrk(ptrdiff_t incr)
{
extern char _end[];
extern char _heap_end[];
static char *curbrk = _end;
if ((curbrk + incr < _end) || (curbrk + incr > _heap_end))
return NULL - 1;
curbrk += incr;
return curbrk - incr;
}
weak_under_alias(sbrk);