Merge pull request #1825 from yazd/simpler_backtrace

Simplify backtrace output to stop printing at D main() function
merged-on-behalf-of: David Nadlinger <code@klickverbot.at>

Author: dlang-bot

src/rt/backtrace/dwarf.d

@@ -90,7 +90,7 @@ int traceHandlerOpApplyImpl(const void*[] callstack, scope int delegate(ref size
         auto output = buffer[0 .. bufferLength];
         auto pos = i;
         ret = dg(pos, output);
-        if (ret) break;
+        if (ret || symbol == "_Dmain") break;
     }
     return ret;
 }

test/exceptions/line_trace.exp

@@ -2,8 +2,3 @@ object.Exception@src/line_trace.d(17): exception
 ----------------
 src/line_trace.d:17 void line_trace.f1() [ADDR]
 src/line_trace.d:5 _Dmain [ADDR]
-src/rt/dmain2.d:476 _D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ6runAllMFZ9__lambda1MFZv [ADDR]
-src/rt/dmain2.d:451 void rt.dmain2._d_run_main(int, char**, extern (C) int function(char[][])*).tryExec(void delegate()) [ADDR]
-src/rt/dmain2.d:476 void rt.dmain2._d_run_main(int, char**, extern (C) int function(char[][])*).runAll() [ADDR]
-src/rt/dmain2.d:451 void rt.dmain2._d_run_main(int, char**, extern (C) int function(char[][])*).tryExec(void delegate()) [ADDR]
-src/rt/dmain2.d:484 _d_run_main [ADDR]