runtime: Print stack trace on panic or signal.

From-SVN: r187623

1 files changed, 14 insertions, 3 deletions

diff --git a/libgo/runtime/runtime.h b/libgo/runtime/runtime.h
index 3e75b1583b8..91044184b1f 100644
--- a/libgo/runtime/runtime.h
+++ b/libgo/runtime/runtime.h
@@ -143,14 +143,16 @@ struct	G
 	M*	m;		// for debuggers, but offset not hard-coded
 	M*	lockedm;
 	M*	idlem;
-	// int32	sig;
+	int32	sig;
 	int32	writenbuf;
 	byte*	writebuf;
-	// uintptr	sigcode0;
-	// uintptr	sigcode1;
+	uintptr	sigcode0;
+	uintptr	sigcode1;
 	// uintptr	sigpc;
 	uintptr	gopc;	// pc of go statement that created this goroutine
 
+	G*	dotraceback;
+
 	ucontext_t	context;
 	void*		stack_context[10];
 };
@@ -289,6 +291,11 @@ void*	runtime_mal(uintptr);
 void	runtime_schedinit(void);
 void	runtime_initsig(void);
 void	runtime_sigenable(uint32 sig);
+int32	runtime_gotraceback(void);
+void	runtime_goroutineheader(G*);
+void	runtime_goroutinetrailer(G*);
+void	runtime_traceback();
+void	runtime_tracebackothers(G*);
 String	runtime_gostringnocopy(const byte*);
 void*	runtime_mstart(void*);
 G*	runtime_malg(int32, byte**, size_t*);
@@ -434,6 +441,8 @@ void	runtime_osyield(void);
 void	runtime_LockOSThread(void) __asm__("runtime.LockOSThread");
 void	runtime_UnlockOSThread(void) __asm__("runtime.UnlockOSThread");
 
+bool	runtime_showframe(const unsigned char*);
+
 uintptr	runtime_memlimit(void);
 
 // If appropriate, ask the operating system to control whether this
@@ -468,3 +477,5 @@ void	__go_register_gc_roots(struct root_list*);
 // This will be 0 when using split stacks, as in that case
 // the stacks are allocated by the splitstack library.
 extern uintptr runtime_stacks_sys;
+
+extern _Bool __go_file_line (uintptr, String*, String*, int *);