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authorKali Kaneko (leap communications) <kali@leap.se>2018-12-13 19:45:48 +0100
committerKali Kaneko (leap communications) <kali@leap.se>2018-12-13 19:47:11 +0100
commit81843a0477c5eba4b3d4f6ff932f748f9e1244e7 (patch)
tree6068ae0ff1d8ac617e2781fb8aa68200e71403f2 /vendor/golang.org/x/sys/unix/gccgo_c.c
parentac56a90e21118dc1ddfc1bd5e69d87f157710412 (diff)
vendor packages
Diffstat (limited to 'vendor/golang.org/x/sys/unix/gccgo_c.c')
-rw-r--r--vendor/golang.org/x/sys/unix/gccgo_c.c47
1 files changed, 47 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..24e96b1
--- /dev/null
+++ b/vendor/golang.org/x/sys/unix/gccgo_c.c
@@ -0,0 +1,47 @@
+// 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;
+}
+
+uintptr_t
+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)
+{
+ return syscall(trap, a1, a2, a3, a4, a5, a6, a7, a8, a9);
+}
+
+// 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)))
+{
+}