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Date: Tue, 24 May 2016 14:42:28 -0400
From: "Emilio G. Cota" <cota@braap.org>
Message-ID: <20160524184228.GA16037@flamenco>
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Subject: Re: [Qemu-devel] [PATCH 1/2] atomics: do not use __atomic
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To: Alex =?iso-8859-1?Q?Benn=E9e?= <alex.bennee@linaro.org>
Cc: QEMU Developers <qemu-devel@nongnu.org>, MTTCG Devel <mttcg@listserver.greensocs.com>, Paolo Bonzini <pbonzini@redhat.com>, Richard Henderson <rth@twiddle.net>, Sergey Fedorov <serge.fdrv@gmail.com>

On Sun, May 22, 2016 at 08:58:51 +0100, Alex Bennée wrote:
> For tsan runs you need to re-build with:
> 
>   ./configure --cc=gcc --extra-cflags="-pie -fPIE -fsanitize=thread" --with-coroutine=gthread
> 
> Specifically the coroutine ucontext messing really confuses TSAN.

With your configure args + the appended I can at least compile
arm-softmmu, but I still get:

FATAL: ThreadSanitizer: unexpected memory mapping 0x55d9f389d000-0x55d9f4111000

Am I missing something? Thanks,

		Emilio


diff --git a/configure b/configure
index ab54f3c..a8903fe 100755
--- a/configure
+++ b/configure
@@ -112,7 +112,7 @@ compile_object() {

 compile_prog() {
   local_cflags="$1"
-  local_ldflags="$2"
+  local_ldflags="$2 -ltsan"
   do_cc $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC $LDFLAGS $local_ldflags
 }

@@ -174,12 +174,12 @@ audio_drv_list=""
 block_drv_rw_whitelist=""
 block_drv_ro_whitelist=""
 host_cc="cc"
-libs_softmmu=""
-libs_tools=""
+libs_softmmu="-ltsan"
+libs_tools="-ltsan"
 audio_pt_int=""
 audio_win_int=""
 cc_i386=i386-pc-linux-gnu-gcc
-libs_qga=""
+libs_qga="-ltsan"
 debug_info="yes"
 stack_protector=""