https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83647
Bug ID: 83647
Summary: add x86_64 Windows support to GCJ
Product: gcc
Version: 6.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: java
Assignee: unassigned at gcc dot gnu.org
Reporter: yzhang1985 at gmail dot com
Target Milestone: ---
Created attachment 43002
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=43002&action=edit
The changes to natVMConsole.cc are only for MingW. Probably these changes don't
need to be in GCC and can be downstream
GCJ currently doesn't support x86_64 Windows, specifically x86_64-w64-mingw32.
I have made a patch that supports it. I know GCJ has been removed from GCC 7,
but I'm hoping this can still make it into GCC 6.
The changes were mostly to change 32bit ints to pointer sized ints.
Specifically,
unsigned long -> uintptr_t
jint -> jlong
Changing jint -> jlong is probably not right because that would change 32bit
builds. I wanted to change those jint to jsize and change jsize from int to
intptr_t, but wasn't sure of the effects.
The other big change was I had to replace boehm-gc with a newer version (7.2e,
7.2g crashes). GCC seems to have an out of date, custom version that doesn't
support x86_64 windows, and that only builds a static lib. I didn't include
that in the patch, but you can simply plant the newer version into the source
code.
