diff options
Diffstat (limited to 'Godeps/_workspace/src/golang.org/x/sys/unix/gccgo_c.c')
-rw-r--r-- | Godeps/_workspace/src/golang.org/x/sys/unix/gccgo_c.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/Godeps/_workspace/src/golang.org/x/sys/unix/gccgo_c.c b/Godeps/_workspace/src/golang.org/x/sys/unix/gccgo_c.c new file mode 100644 index 000000000..07f6be039 --- /dev/null +++ b/Godeps/_workspace/src/golang.org/x/sys/unix/gccgo_c.c @@ -0,0 +1,41 @@ +// Copyright 2015 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build gccgo + +#include <errno.h> +#include <stdint.h> +#include <unistd.h> + +#define _STRINGIFY2_(x) #x +#define _STRINGIFY_(x) _STRINGIFY2_(x) +#define GOSYM_PREFIX _STRINGIFY_(__USER_LABEL_PREFIX__) + +// Call syscall from C code because the gccgo support for calling from +// Go to C does not support varargs functions. + +struct ret { + uintptr_t r; + uintptr_t err; +}; + +struct ret +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) +{ + struct ret r; + + errno = 0; + r.r = syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9); + r.err = errno; + return r; +} + +// Define the use function in C so that it is not inlined. + +extern void use(void *) __asm__ (GOSYM_PREFIX GOPKGPATH ".use") __attribute__((noinline)); + +void +use(void *p __attribute__ ((unused))) +{ +} |