klibc/klibc/arch/i386/open.S

   1 /*
   2  * arch/i386/open.S
   3  *
   4  * Handle the open() system call - oddball due to the varadic
   5  * prototype, which forces the use of the cdecl calling convention,
   6  * and the need for O_LARGEFILE.
   7  */
   8
   9 #include <asm/unistd.h>
  10
  11 /* <asm/fcntl.h>, despite the name, isn't assembly-safe */
  12 #define O_LARGEFILE     0100000
  13
  14         .globl  open
  15         .type   open,@function
  16
  17 open:
  18 #ifdef _REGPARM
  19         movl    4(%esp),%eax
  20         movl    8(%esp),%edx
  21         movl    12(%esp),%ecx
  22         orl     $O_LARGEFILE,%edx
  23 #else
  24         orl     $O_LARGEFILE,8(%esp)
  25 #endif
  26         pushl   $__NR_open
  27         jmp     __syscall_common
  28
  29         .size   open,.-open