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Re: GCJ 4.03 crash on Windows 98 continued
- From: Ranjit Mathew <rmathew at gmail dot com>
- To: Jesper Juul / Soup Games <jesper at soupgames dot net>
- Cc: java at gcc dot gnu dot org, Hans dot Boehm at hp dot com
- Date: Tue, 20 Jun 2006 00:08:18 +0530
- Subject: Re: GCJ 4.03 crash on Windows 98 continued
- Openpgp: url=http://ranjitmathew.hostingzero.com/aa_6C114B8F.txt
- References: <7.0.1.0.2.20060507222512.03dc0c58@soupgames.net>
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Jesper Juul / Soup Games wrote:
> For the record, I have gotten a bit deeper on the issue of why gcj
> 4.0x executables crash on Windows 98.
In my limited testing, I have also found that even the simplest
executables produced by GCJ to crash under Windows 98. It seems
to be a problem in the GC. One of the workarounds is to set the
environment variable GC_DONT_GC to disable the GC entirely.
Another workaround is to take a hint from:
http://blog.gmane.org/gmane.comp.programming.garbage-collection.boehmgc/day=20051129
and apply something like the following patch:
- ------------------------------- 8< -------------------------------
Index: dyn_load.c
===================================================================
- --- dyn_load.c (revision 114756)
+++ dyn_load.c (working copy)
@@ -901,7 +901,8 @@ void GC_register_dynamic_libraries()
* !is_frame_buffer(p, buf.RegionSize, buf.Type)
* instead of just checking for MEM_IMAGE.
* If something breaks, change it back. */
- - && buf.Type == MEM_IMAGE) {
+ /* && buf.Type == MEM_IMAGE) { */
+ && !is_frame_buffer(p, buf.RegionSize, buf.Type)) {
# ifdef DEBUG_VIRTUALQUERY
GC_dump_meminfo(&buf);
# endif
- ------------------------------- 8< -------------------------------
To quote Hans:
"It sounds like the right solution here is to check is to explicitly
check for ME and predecessors, and to allow MEM_PRIVATE there, but to
continue to insist on MEM_IMAGE for newer msft operating systems."
HTH,
Ranjit.
- --
Ranjit Mathew Email: rmathew AT gmail DOT com
Bangalore, INDIA. Web: http://rmathew.com/
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