Re: [GIT PULL request] ELF rewrite part 2

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On 5/11/09, Andreas Robinson <andr345@xxxxxxxxx> wrote:
> Update: I recompiled and got Valgrind working.
> Your "runtests --valgrind" patch ... not yet.

Ok.  It worked for me today.

Damn, I meant to say that you probably need to use "git apply" not
"patch", because it creates symlinks.  That might be your problem.

> sudo valgrind build/depmod
> returns errors like this one, not the one you see:
> ==19659== Invalid read of size 4
> ==19659==    at 0x401BBE: output_symbols (depmod.c:755)
> ==19659==    by 0x4041ED: main (depmod.c:1364)
> ==19659==  Address 0x53616ac is 284 bytes inside a block of size 287
> alloc'd
> ==19659==    at 0x4C2794E: malloc (vg_replace_malloc.c:207)
> ==19659==    by 0x403186: grab_module (depmod.c:269)
> ==19659==    by 0x403529: do_module (depmod.c:539)
> ==19659==    by 0x4034BB: grab_dir (depmod.c:581)
> ==19659==    by 0x403459: grab_dir (depmod.c:594)
> ==19659==    by 0x403459: grab_dir (depmod.c:594)
> ==19659==    by 0x403459: grab_dir (depmod.c:594)
> ==19659==    by 0x404414: main (depmod.c:616)
> It seems related to the new structs fields (module_tables and elf_file)
> in struct module. Is sizeof() returning the wrong size?!
> Anyway, I'll keep looking.

Ok... I'll investigate my end, it probably depends on the modules
which are used.

I didn't see those errors, but I have seen similar ones in the past.
They should go away if you do

valgrind --suppressions tests/vg-suppressions

or (I think this only works on 32-bit)

valgrind --partial-loads-ok=yes

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