William Kurkian | 6ea97f8 | 2019-03-13 15:51:55 -0400 | [diff] [blame] | 1 | // Copyright 2015 The Go Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style |
| 3 | // license that can be found in the LICENSE file. |
| 4 | |
| 5 | // +build gccgo |
| 6 | // +build !aix |
| 7 | |
| 8 | #include <errno.h> |
| 9 | #include <stdint.h> |
| 10 | #include <unistd.h> |
| 11 | |
| 12 | #define _STRINGIFY2_(x) #x |
| 13 | #define _STRINGIFY_(x) _STRINGIFY2_(x) |
| 14 | #define GOSYM_PREFIX _STRINGIFY_(__USER_LABEL_PREFIX__) |
| 15 | |
| 16 | // Call syscall from C code because the gccgo support for calling from |
| 17 | // Go to C does not support varargs functions. |
| 18 | |
| 19 | struct ret { |
| 20 | uintptr_t r; |
| 21 | uintptr_t err; |
| 22 | }; |
| 23 | |
| 24 | struct ret |
| 25 | gccgoRealSyscall(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9) |
| 26 | { |
| 27 | struct ret r; |
| 28 | |
| 29 | errno = 0; |
| 30 | r.r = syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9); |
| 31 | r.err = errno; |
| 32 | return r; |
| 33 | } |
| 34 | |
| 35 | uintptr_t |
| 36 | gccgoRealSyscallNoError(uintptr_t trap, uintptr_t a1, uintptr_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5, uintptr_t a6, uintptr_t a7, uintptr_t a8, uintptr_t a9) |
| 37 | { |
| 38 | return syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9); |
| 39 | } |