| /* { dg-do compile { target { ia32 && fstack_protector } } } */ |
| /* { dg-options "-O2 -mincoming-stack-boundary=2 -fstack-protector-all" } */ |
| |
| #include <stdarg.h> |
| |
| extern int *__errno_location (void); |
| |
| long |
| sys_socketcall (int op, ...) |
| { |
| long int res; |
| va_list ap; |
| va_start (ap, op); |
| asm volatile ("push %%ebx; movl %2, %%ebx; int $0x80; pop %%ebx" |
| /* { dg-warning "listing the stack pointer register" "" { target *-*-* } .-1 } */ |
| : "=a" (res) : "0" (102), "ri" (16), "c" (ap) : "memory", "esp"); |
| if (__builtin_expect (res > 4294963200UL, 0)) |
| *__errno_location () = -res; |
| va_end (ap); |
| return res; |
| } |
| |
| /* { dg-final { scan-assembler "call\[ \t\]*_?__errno_location" } } */ |
