valgrind-users

[Valgrind-users] Can I integrate my program's reimplemented execve with Valgrind?

[Steven Stewart-G. <sst...@my...>]

 	Can I integrate my program's reimplemented execve with Valgrind?

Hello,

Is it possible to integrate a reimplemented execve with Valgrind?  I
am implementing an Linux + GLibc emulator for Windows programs and so
I have to reimplement execve myself (see
https://gitlab.com/sstewartgallus/Sandbox-Libc/blob/master/kernel/src/main.c#L330.)
Unfortunately, this means I also overwrite Valgrind's code itself and
so Valgrind does not work for those processes.  Is it possible to
integrate with Valgrind itself and avoid this problem?  Shouldn't
qemu-user and user-mode Linux have also run into these problems?

Thank you,
Steven Stewart-Gallus

Re: [Valgrind-users] Can I integrate my program's reimplemented execve with Valgrind?

[John R. <jr...@bi...>]

>   	Can I integrate my program's reimplemented execve with Valgrind?

Call it 'execve', put it in a shared library, then change the filename
of the shared library where valgrind expects to find execve from "glibc"
to the name of your .so.

Re: [Valgrind-users] Can I integrate my program's reimplemented execve with Valgrind?

[Tom H. <to...@co...>]

On 14/08/15 15:48, John Reiser wrote:
>>    	Can I integrate my program's reimplemented execve with Valgrind?
>
> Call it 'execve', put it in a shared library, then change the filename
> of the shared library where valgrind expects to find execve from "glibc"
> to the name of your .so.

Except that valgrind traps the system call, not the library function ;-)

Tom

-- 
Tom Hughes (to...@co...)
http://compton.nu/