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Usage of LD_PRELOAD
- From: Matthieu CASTET <matthieu dot castet at parrot dot com>
- To: cygwin at cygwin dot com
- Date: Wed, 5 Mar 2008 08:47:13 +0000 (UTC)
- Subject: Usage of LD_PRELOAD
Hi,
I am trying to use LD_PRELOAD on cygwin, but I don't manage to make work.
I suppose I do something wrong when creating my library.
What I do is :
$ cat << EOF > /tmp/toto1.c
#include <sys/stat.h>
int chmod(const char *path, mode_t mode)
{
printf("123\n");
return -1;
}
EOF
$ module=toto1 gcc -shared -o /tmp/cyg${module}.dll
-Wl,--out-implib=lib${module}.dll.a -Wl,--export-all-symbols
-Wl,--enable-auto-import -Wl,--whole-archive /tmp/toto1.c -Wl,--no-whole-archive
$ export LD_PRELOAD=/tmp/cygtoto1.dll
$ chmod a+w /tmp/toto1.c <-- chmod isn't redirected here (but the
library is loaded).
Any idea why it doesn't work ?
Thanks
Matthieu
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