All,
I wrote a discrete-event simulator that requires intercepting several
system calls via LD_PRELOAD. (https://shadow.cs.umn.edu). When I intercept
malloc, and run my program through valgrind, it barfs with the error:
"valgrind: Cannot continue: malloc of new_line failed."
My command is something like:
LD_PRELOAD=/path/to/mypreload.so /usr/bin/valgrind /path/to/myprogram...
where mypreload.so contains the malloc() that I am intercepting. The
printf() in my implementation of malloc never gets triggered.
$ uname -a
Linux thor 3.4.6-2.fc17.x86_64 #1 SMP Thu Jul 19 22:54:16 UTC 2012 x86_64
x86_64 x86_64 GNU/Linux
$ valgrind --version
valgrind-3.7.0
I am wondering if there is a way to tell valgrind that I want to set a
library in the LD_PRELOAD env variable AFTER the valgrind initialization is
done but BEFORE my program is run. It seems like this could be a useful
feature for programs that intercept malloc(). What are the options for
programs that want to LD_PRELOAD malloc and run valgrind at the same time?
Regards,
Rob
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