[Bug 42436] Wine Wiki: Building Wine - Memory & Address Checkers

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=42436

Kyle Auble <kyle.auble at zoho.com> changed:

           What    |Removed                     |Added
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                 CC|                            |kyle.auble at zoho.com

--- Comment #1 from Kyle Auble <kyle.auble at zoho.com> ---
(In reply to Wylda from comment #0)
> I don't know, if anyone tried recently follow wiki link:
> 
> https://wiki.winehq.org/Building_Wine#Memory_.26_Address_Checkers
> 
> 
> This link mentions "...you only need to pass the -fsanitize=address flag to
> the compiler when building"
> 
> ../wine-source/configure CFLAGS="-g -O1 -fsanitize=address -other-flags"
> 
> 
> But this fails soon in make_xftmpl.o: In function fatal_error':
> 
> ..../tools/make_xftmpl.c:116: undefined reference to
> `__asan_option_detect_stack_use_after_return'
> 
> ..../tools/make_xftmpl.c:116: undefined reference to `__asan_stack_malloc_1'
> 
> 
> Passing LIBS="-lasan" to configure fixes this, but build fails anyway at cca
> 63%:
> 
> ..../dlls/ntdll/loader.c:2979: undefined reference to `pthread_sigmask'

> Passing LIBS="-lasan -lpthread" to configure fixes this issue, but anyway
> fails at the end:
> 
> ../tools/sfnt2fon/sfnt2fon -o coue1255.fon
> ../../wine_git_src/fonts/courier.ttf -d 128 13,1255,8

> ==16755==ASan runtime does not come first in initial library list; you
> should either link runtime to your application or manually preload it with
> LD_PRELOAD.

> Did anyone tried to follow that Wiki? I tried that on Debian Stretch.
> Gcc (Debian 6.3.0-6) 6.3.0 20170205

After looking into this, I think you've made a good catch. The wiki
instructions weren't entirely correct. You should only need to use the
-fsanitize=address flag, but you need to add it to both CFLAGS and LDFLAGS when
you configure:
https://stackoverflow.com/questions/37970758/how-to-use-addresssanitizer-in-gcc

I think that's why you were having the errors you did. The first problem was
not having access to ASan's malloc, which you get when you add back in -lasan.
Ditto for the second problem and -lpthread. Your final error probably came from
still not linking to the full ASan library, just the two pieces you had
specified. That you also need to link explicitly to ASan totally slipped by me
when I was reading the documentation. I've corrected the wiki page now.

By the way, we can always use more help with documentation, especially
fact-checking like this. If you want to edit the wiki, first create a wiki
account (single sign-on across WineHQ is still on our wishlist), then you just
need to email a wiki admin to ask for edit privileges. I think of all the
admins, Rosanne DiMesio is most active on the wiki.

Otherwise, if the new instructions work for you, I think we can close this bug.

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