[dev.fuzz] all: merge master into dev.fuzz

Change-Id: I5d8c8329ccc9d747bd81ade6b1cb7cb8ae2e94b2

1 files changed, 65 insertions, 0 deletions

diff --git a/src/runtime/testdata/testprogcgo/traceback_c.c b/src/runtime/testdata/testprogcgo/traceback_c.c
new file mode 100644
index 0000000000..56eda8fa8c
--- /dev/null
+++ b/src/runtime/testdata/testprogcgo/traceback_c.c
@@ -0,0 +1,65 @@
+// Copyright 2020 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.
+
+// The C definitions for traceback.go. That file uses //export so
+// it can't put function definitions in the "C" import comment.
+
+#include <stdint.h>
+
+char *p;
+
+int crashInGo;
+extern void h1(void);
+
+int tracebackF3(void) {
+	if (crashInGo)
+		h1();
+	else
+		*p = 0;
+	return 0;
+}
+
+int tracebackF2(void) {
+	return tracebackF3();
+}
+
+int tracebackF1(void) {
+	return tracebackF2();
+}
+
+struct cgoTracebackArg {
+	uintptr_t  context;
+	uintptr_t  sigContext;
+	uintptr_t* buf;
+	uintptr_t  max;
+};
+
+struct cgoSymbolizerArg {
+	uintptr_t   pc;
+	const char* file;
+	uintptr_t   lineno;
+	const char* func;
+	uintptr_t   entry;
+	uintptr_t   more;
+	uintptr_t   data;
+};
+
+void cgoTraceback(void* parg) {
+	struct cgoTracebackArg* arg = (struct cgoTracebackArg*)(parg);
+	arg->buf[0] = 1;
+	arg->buf[1] = 2;
+	arg->buf[2] = 3;
+	arg->buf[3] = 0;
+}
+
+void cgoSymbolizer(void* parg) {
+	struct cgoSymbolizerArg* arg = (struct cgoSymbolizerArg*)(parg);
+	if (arg->pc != arg->data + 1) {
+		arg->file = "unexpected data";
+	} else {
+		arg->file = "cgo symbolizer";
+	}
+	arg->lineno = arg->data + 1;
+	arg->data++;
+}