/* From libc-5.3.12 */ #include <unistd.h> #include <sys/syscall.h> #include <errno.h> extern void * ___brk_addr; extern int __init_brk (void); void * sbrk(ptrdiff_t increment) { if (__init_brk () == 0) { void * tmp = ___brk_addr+increment; #if defined(__PIC__) || defined (__pic__) __asm__ volatile ("pushl %%ebx\n\t" "movl %%ecx,%%ebx\n\t" "int $0x80\n\t" "popl %%ebx" :"=a" (___brk_addr) :"0" (__NR_brk),"c" (tmp)); #else __asm__ volatile ("int $0x80" :"=a" (___brk_addr) :"0" (__NR_brk),"b" (tmp)); #endif if (___brk_addr == tmp) return tmp-increment; __set_errno(ENOMEM); return ((void *) -1); } return ((void *) -1); }