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xen-devel
Re: [Xen-devel] Changeset for reisermodule x86_64 compilation w/ -Wall
Hollis Blanchard wrote:
On Oct 11, 2005, at 3:14 AM, Charles Duffy wrote:
Compiling with -Wall is failing for me without application of this
patch. I'm fairly sure someone else has independently proposed (pretty
much) the same thing, but given that it didn't get applied, I'm
reproposing it here.
# HG changeset patch
# User cduffy@xxxxxxxxxxx
# Node ID f3f8213f8d895c1b4e29647132aaea8633fb4825
# Parent e69413dca6844c87885121a7360fa7c2b11cdea9
fix 64-bit compilation
diff -r e69413dca684 -r f3f8213f8d89
tools/pygrub/src/fsys/reiser/reisermodule.c
--- a/tools/pygrub/src/fsys/reiser/reisermodule.c Sat Oct 8
09:22:01 2005
+++ b/tools/pygrub/src/fsys/reiser/reisermodule.c Tue Oct 11
07:51:18 2005
@@ -46,7 +46,7 @@
if (!dal) return;
- close((int)dal->dev);
+ close((size_t)dal->dev);
dal_free(dal);
}
I don't understand this change. My close(2) man page says close takes an
int, not a size_t.
Charles, what is the exact -Wall error you're seeing? I can't seem to
find "dal", but just a guess... is 'dal->dev' a 'void *'?
Sadly, this query came *after* I wiped SLES10.1 off my development box.
Gentoo doesn't install the reiserfstools headers, and consequently
pygrub doesn't try to build the code in question and I'm unable to
reproduce the issue.
It smells to me like you're right, though -- I *think* the error was
indeed "cast from pointer to integer of different size" -- and if so,
then what I've proposed isn't the right fix; something like
close((int)(size_t)dal->dev) would be closer, though stuffing a FD in a
spot intended for a pointer seems pretty hokey in any event.
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