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ocamlopt.opt SEGV on alpha #3822

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vicuna opened this issue Oct 25, 2005 · 2 comments
Closed

ocamlopt.opt SEGV on alpha #3822

vicuna opened this issue Oct 25, 2005 · 2 comments
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@vicuna
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vicuna commented Oct 25, 2005

Original bug ID: 3822
Reporter: administrator
Status: closed (set by @xavierleroy on 2011-12-17T11:34:28Z)
Resolution: not fixable
Priority: normal
Severity: minor
Category: ~DO NOT USE (was: OCaml general)
Monitored by: @glondu jaap smimram jcristau

Bug description

Full_Name: Julien Cristau
Version: 3.08.3
OS: Debian Linux
Submission from: morse.liafa.jussieu.fr (132.227.81.80)

Hi,

ocamlopt.opt segfaults on alpha on any input.
This was reported as Debian bug#335578 (see http://bugs.debian.org/335578), and
seems to be toolchain-related (works with binutils 2.15 - gcc 3.3, and fails
with binutils 2.16 - gcc 4.0).
The gdb output is (with an empty file test.ml):
Starting program:
/tmp/ocaml-3.08.3/debian/ocaml-native-compilers/usr/bin/ocamlopt.opt test.ml

Program received signal SIGSEGV, Segmentation fault.
0x00000001200028dc in caml_startup__code_begin ()
(gdb) where
#0 0x00000001200028dc in caml_startup__code_begin ()
#1 0x0000000120171f54 in caml_start_program ()
Cannot access memory at address 0x0

Please ask if you need additional information/testing.

Cheers,
Julien Cristau
@vicuna
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vicuna commented Oct 28, 2005

Comment author: administrator

Hi,

as mentionned in the Debian bug log, of two consecutive builds of the
package, with no source changes between them, one was successful and
the other built a broken ocamlopt.opt, so I really think it was caused
by a toolchain change :/
Changes in gcc are an update from 20050806 to 20050821 from the
gcc-4_0-branch, and relevant changes in binutils are an update from
upstream 2.16.1 to CVS 20050902. I don't know if there were
alpha-specific changes in these two packages (at least there don't seem
to be debian-specific ones).

Cheers,
Julien Cristau

@vicuna
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vicuna commented Dec 17, 2011

Comment author: @xavierleroy

The Alpha architecture is now really dead (it will be missed), and the next major release of OCaml will no longer offer an Alpha native-code generator. I am therefore closing this PR.

@vicuna vicuna closed this as completed Dec 17, 2011
@vicuna vicuna added the bug label Mar 19, 2019
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@vicuna