/* From libc-5.3.12 */ #include #include #include extern void * ___brk_addr; extern int __init_brk (); int brk(void * end_data_seg) { if (__init_brk () == 0) { #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" (end_data_seg)); #else __asm__ volatile ("int $0x80" :"=a" (___brk_addr) :"0" (__NR_brk),"b" (end_data_seg)); #endif if (___brk_addr == end_data_seg) return 0; __set_errno(ENOMEM); } return -1; }