*WIP* proof of concept error return traces

1 files changed, 7 insertions, 1 deletions

diff --git a/std/special/panic.zig b/std/special/panic.zig
index 03c2586739..690c4afa1c 100644
--- a/std/special/panic.zig
+++ b/std/special/panic.zig
@@ -4,14 +4,20 @@
 // have to be added in the compiler.
 
 const builtin = @import("builtin");
+const std = @import("std");
 
-pub coldcc fn panic(msg: []const u8) -> noreturn {
+pub coldcc fn panic(msg: []const u8, error_return_trace: ?&builtin.StackTrace) -> noreturn {
     switch (builtin.os) {
         // TODO: fix panic in zen.
         builtin.Os.freestanding, builtin.Os.zen => {
             while (true) {}
         },
         else => {
+            if (error_return_trace) |trace| {
+                std.debug.warn("{}\n", msg);
+                std.debug.dumpStackTrace(trace);
+                @import("std").debug.panic("");
+            }
             @import("std").debug.panic("{}", msg);
         },
     }