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[Gcl-devel] SGC on MacOS X (continued)
From: |
Aurelien Chanudet |
Subject: |
[Gcl-devel] SGC on MacOS X (continued) |
Date: |
Mon, 26 Jul 2004 10:35:05 +0200 (CEST) |
Hi Camm & all,
I looked at my SGC issue during the week-end.
It turns out that the test below (at the beginning of
sgc_start in sgbc.c) never evaluates to true, thus
resulting in a sgc_type_map array never marked as
writable.
if (npp<MAXPAGE && sgc_type_map[npp] !=
SGC_PERM_WRITABLE)
perm_writable(&sgc_type_map[0],sizeof(sgc_type_map));
Modifying this test to make it evaluate to true
apparently solves the problem. So now the question
that is left to solve is : why does this test evaluate
to false ? I noticed that, at this point in the
program execution, my sgc_type_map array holds the
following values :
sgc_type_map[page(sgc_type_map)]=4
sgc_type_map[page(sgc_type_map)+1]=0
sgc_type_map[page(sgc_type_map)+2]=0
...
sgc_type_map[page(sgc_type_map+sizeof(sgc_type_map))-1]=0
Any clue as to what's going wrong ?
Thanks,
Aurelien
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