diff options
author | 2017-05-04 11:09:03 +0200 | |
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committer | 2017-05-04 11:12:35 +0200 | |
commit | a101d966133a70b8a76526be25070436d14fcf9f (patch) | |
tree | 75e2dbf20de615e58252b780b2ba5baae8fdcf82 /vendor/golang.org/x/sys/unix/gccgo_c.c | |
parent | a968ead74525125dff9ae90b1c9a9102e4327900 (diff) |
initial commit
Signed-off-by: Rastislav Szabo <raszabo@cisco.com>
Diffstat (limited to 'vendor/golang.org/x/sys/unix/gccgo_c.c')
-rw-r--r-- | vendor/golang.org/x/sys/unix/gccgo_c.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/unix/gccgo_c.c b/vendor/golang.org/x/sys/unix/gccgo_c.c new file mode 100644 index 0000000..07f6be0 --- /dev/null +++ b/vendor/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))) +{ +} |