0003966: Crash will varying placement of Callback.register

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0003966

OCaml

OCaml general

public

2006-01-28 15:20

2012-09-25 20:10

Reporter

anonymous

Assigned To

frisch

Priority

normal

Severity

minor

Reproducibility

always

Status

closed

Resolution

unable to reproduce

Platform

OS Version

Product Version

3.08.3

Target Version

Fixed in Version

Summary

0003966: Crash will varying placement of Callback.register

Description

Hullo.

I call caml_main immediately followed by callback from a program written in C++.

It works if the callback is registered prior to the last function evaluated in initialisation:

let register = Callback.register "Get canvas" canvas

let _ = (* rest of program initialisation *)

But if the Callback.register is in the final let _ ...

let _ = Callback.register "Get canvas" canvas

... it crashes with SIGILL. I can't see anything in the documentation warning about this placement of Callback.register.

I'm compiling on PowerPC.

Cheers,

John Whitington
jgw25@cam.ac.uk

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Notes
(0007829) frisch (developer) 2012-07-29 17:56	Maybe the "rest of program initialisation" calls into C++, which assumes "Get canvas" is already registered? This is a very old ticket, with no reproduction case. I'm marking it as "resolved / unable to reproduce".

Issue History
Date Modified	Username	Field	Change
2006-01-28 15:20	anonymous	New Issue
2006-03-29 16:29	doligez	Status	new => acknowledged
2012-07-11 16:45	doligez	Target Version	=> 4.01.0+dev
2012-07-29 17:56	frisch	Note Added: 0007829
2012-07-29 17:56	frisch	Status	acknowledged => resolved
2012-07-29 17:56	frisch	Resolution	open => unable to reproduce
2012-07-29 17:56	frisch	Assigned To	=> frisch
2012-07-29 17:56	frisch	Target Version	4.01.0+dev =>
2012-09-25 20:10	xleroy	Status	resolved => closed