Original bug ID: 4063
Reporter: padator
Status: closed (set by @xavierleroy on 2006-07-18T09:29:56Z)
Resolution: not a bug
Priority: normal
Severity: minor
Version: 3.09.2
Category: ~DO NOT USE (was: OCaml general)

Bug description

When I do (on the test file attached)
ocamlc -g test_bug_backtrace.ml
./a.out 1

I get only this backtrace

Fatal error: exception Failure("failwith: OneExn")
Raised at file "pervasives.ml", line 22, characters 22-33
Called from file "test_bug_backtrace.ml", line 22, characters 15-26

I would like to know that it was also called from line 12, and then
line 7.

What is wierd is that when I use ocamldebug on the same file, it
has a correct backtrace and I am able to go through all the
intermediate callers.

Additional information

This is a simple example, but on my real program,
I am in the situation where I don't know at all from where the
exception was launched.

For instance I get

Fatal error: exception Failure("not supported")
Raised at file "pervasives.ml", line 22, characters 22-33
Called from file "list.ml", line 57, characters 20-23
Called from file "list.ml", line 57, characters 20-23
Called from file "cocci.ml", line 165, characters 19-34
Called from file "main.ml", line 55, characters 8-61
Called from file "main.ml", line 106, characters 39-46

Whereas It should have added just after the "pervasives"
Called from file "asttoctl.ml", line ... characters ...
In which case I know I have to look for the file asttoctl.ml

File attachments

• test_bug_backtrace.ml