#include <unistd.h> #include <sys/mman.h> #include <errno.h> #include <sys/syscall.h> #define __syscall_clobbers \ "r9", "r10", "r11", "r12" #define __syscall_return(type) \ return (__sc_err & 0x10000000 ? errno = __sc_ret, __sc_ret = -1 : 0), \ (type) __sc_ret void * mmap(void *start, size_t length, int prot, int flags, int fd, off_t offset) { unsigned long __sc_ret, __sc_err; register unsigned long __sc_0 __asm__ ("r0"); register unsigned long __sc_3 __asm__ ("r3"); register unsigned long __sc_4 __asm__ ("r4"); register unsigned long __sc_5 __asm__ ("r5"); register unsigned long __sc_6 __asm__ ("r6"); register unsigned long __sc_7 __asm__ ("r7"); register unsigned long __sc_8 __asm__ ("r8"); __sc_3 = (unsigned long) start; __sc_4 = (unsigned long) length; __sc_5 = (unsigned long) prot; __sc_6 = (unsigned long) flags; __sc_7 = (unsigned long) fd; __sc_8 = (unsigned long) offset; __sc_0 = __NR_mmap; __asm__ __volatile__ ("sc \n\t" "mfcr %1 " : "=&r" (__sc_3), "=&r" (__sc_0) : "0" (__sc_3), "1" (__sc_0), "r" (__sc_4), "r" (__sc_5), "r" (__sc_6), "r" (__sc_7), "r" (__sc_8) : __syscall_clobbers); __sc_ret = __sc_3; __sc_err = __sc_0; __syscall_return (void *); }