| # | |
| # arch/alpha/sysdual.S | |
| # | |
| # | |
| # Some system calls have an alternate return value in r20 (a4). | |
| # This system call stub is for system calls where that is | |
| # the "real" return value. | |
| # | |
| #include <machine/asm.h> | |
| .text | |
| .align 3 | |
| .type __syscall_dual1,@function | |
| .ent __syscall_dual1, 0 | |
| .globl __syscall_dual1 | |
| __syscall_dual1: | |
| callsys | |
| lda v0, 0(a4) | |
| beq a3, 1f | |
| ldah a1, errno(zero) | |
| lda v0, -1(zero) | |
| stq a3, errno(a1) | |
| 1: | |
| ret zero,(ra),1 | |
| .size __syscall_dual1,.-__syscall_dual1 | |
| .end __syscall_dual1 |