| # |
| # socketcall.S |
| # |
| # On i386, the main (only?) user of socketcall(2), the memory array |
| # socketcall(2) needs is conveniently already assembled for us on |
| # the stack. Capitalize on that to make a common socketcall stub. |
| # |
| |
| #include <asm/unistd.h> |
| |
| #ifdef __i386__ |
| |
| .text |
| .align 4 |
| .globl __socketcall_common |
| .type __socketcall_common, @function |
| |
| __socketcall_common: |
| pushl %ebx |
| |
| movzbl %al,%ebx # The socketcall number is passed in in %al |
| leal 8(%esp),%ecx # Argument pointer |
| movl $__NR_socketcall,%eax |
| int $0x80 |
| |
| cmpl $-4096,%eax # Error return? |
| |
| popl %ebx |
| |
| jb 1f |
| |
| negl %eax |
| movl %eax,errno |
| orl $-1,%eax # Return -1 |
| 1: |
| ret |
| |
| .size __socketcall_common,.-__socketcall_common |
| |
| #endif |
