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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Hello,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">thanks for your comments.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">I know, that there is not so much address space in case of 32-bit addressing, but for a lot of applications it is enough. I used address sanitizer with 32-bit
addressing and due to the good performance I wanted to use memory sanitizer with 32-bit addressing.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Instead of looking at /proc/<PID>/maps I changed msan.cc to print out the process mapping every time:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">diff --git a/lib/msan/msan.cc b/lib/msan/msan.cc<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">index d2981f0..97f97c4 100644<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">--- a/lib/msan/msan.cc<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">+++ b/lib/msan/msan.cc<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">@@ -408,6 +408,8 @@ void __msan_init() {<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> Die();<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> }<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">+ DumpProcessMap();<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">+<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> Symbolizer::GetOrInit()->AddHooks(EnterSymbolizer, ExitSymbolizer);<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir);<o:p></o:p></span></i></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">When I now run my example, then I get the output:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">==17434==Process memory map follows:<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0x10000000-0x20000000<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0x20000000-0x50000000<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0x5659b000-0x5666a000 /home/pusl/code/example32.out<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0x5666a000-0x5666b000 /home/pusl/code/example32.out<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0x5666b000-0x5666e000 /home/pusl/code/example32.out<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0x5666e000-0x576c6000<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0x60000000-0x70000000<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0x70000000-0x80000000<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0x80000000-0x90000000<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0x90000000-0xf0000000<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf735a000-0xf7506000<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf7506000-0xf76b3000 /lib32/libc-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf76b3000-0xf76b5000 /lib32/libc-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf76b5000-0xf76b6000 /lib32/libc-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf76b6000-0xf76b9000<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf76b9000-0xf76d5000 /usr/lib32/libgcc_s.so.1<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf76d5000-0xf76d6000 /usr/lib32/libgcc_s.so.1<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">
</span></i><i><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">0xf76d6000-0xf76d9000 /lib32/libdl-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf76d9000-0xf76da000 /lib32/libdl-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf76da000-0xf76db000 /lib32/libdl-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf76db000-0xf772e000 /lib32/libm-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf772e000-0xf772f000 /lib32/libm-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf772f000-0xf7730000 /lib32/libm-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf7730000-0xf7737000 /lib32/librt-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf7737000-0xf7738000 /lib32/librt-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">
</span></i><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">0xf7738000-0xf7739000 /lib32/librt-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf7739000-0xf7752000 /lib32/libpthread-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf7752000-0xf7753000 /lib32/libpthread-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf7753000-0xf7754000 /lib32/libpthread-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">
</span></i><i><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">0xf7754000-0xf7757000<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf7766000-0xf776e000<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf776e000-0xf7770000 [vvar]<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span lang="DE" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">
</span></i><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">0xf7770000-0xf7771000 [vdso]<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf7771000-0xf7793000 /lib32/ld-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf7793000-0xf7794000<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf7794000-0xf7795000 /lib32/ld-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xf7795000-0xf7796000 /lib32/ld-2.23.so<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"> 0xffa83000-0xffaa4000 [stack]<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">==17434==End of process memory map.<o:p></o:p></span></i></p>
<p class="MsoNormal"><i><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Speicherzugriffsfehler (Speicherabzug geschrieben)<o:p></o:p></span></i></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">When I look at the mapping, then the given code is always located in an app-region, given by kMemoryLayout. So I have misunderstand something completely or I
oversee something.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Any comments are welcome.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Stefan<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Kostya Serebryany [mailto:kcc@google.com]
<br>
<b>Sent:</b> Friday, June 17, 2016 7:13 PM<br>
<b>To:</b> Pusl, Stefan <stefan.pusl@intel.com>; Evgenii Stepanov <eugenis@google.com><br>
<b>Cc:</b> llvm-dev@lists.llvm.org<br>
<b>Subject:</b> Re: [llvm-dev] Attempt to modify memory sanitizer for support of X86<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">+eugenis (the msan co-author and current maintainer)<o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">I don't remember any hard blockers for 32-bit msan. <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Soft blockers are:<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> * extra work and extra maintenance<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"> * too little address space, hard to fit any non-trivial application. <o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">You may start looking at /proc/<PID>/maps to see what is the memory region you <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">are failing on and how it is related to kMemoryLayout.<o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Just curious, why are you trying to do this? <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">--kcc <o:p></o:p></p>
</div>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">On Fri, Jun 17, 2016 at 8:02 AM, Pusl, Stefan via llvm-dev <<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>> wrote:<o:p></o:p></p>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm">
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hello,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I’m quite new to LLVM, but I’m interested in memory sanitizer. The petty thing is, that 32bit addressing on Linux is not supported. Thus I tried to take the latest version of the
software and to modify it, using Ubuntu 16.04 as operating system. Given the example<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>example.c:</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>#include <stdio.h></i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>#include <stdlib.h></i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> </i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>int main(int argc, char **argv) {</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> int *a = (int *)malloc(10*sizeof(10));</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> a[5] = 0;</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> if (a[argc])</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> printf("xx\n");</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> return 0;</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>}</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">which I compiled with the command<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>clang -fsanitize=memory -m32 -fPIE -pie -fno-omit-frame-pointer -g -Wl,-Map,example32.map example.c -oexample32.out</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I get now a segmentation fault during the execution:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>(gdb) r</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>Starting program: /home/pusl/code/example32.out
</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>[Thread debugging using libthread_db enabled]</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> </i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>Program received signal SIGSEGV, Segmentation fault.</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>0x565e14f9 in main (argc=1448445640, argv=0xf7f1d3dc) at example.c:4</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I tried to figure out the issue, but as a newcomer to LLVM I don’t have any further idea now to get nearer to the root cause. Any new idea is welcome.
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I changed 5 files. The diffs are:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p style="margin-left:18.0pt">-<span style="font-size:7.0pt"> </span><b>cmake/config-ix.cmake</b>:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>diff --git a/cmake/config-ix.cmake b/cmake/config-ix.cmake</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>index 04e33a0..d02e319 100644</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>--- a/cmake/config-ix.cmake</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+++ b/cmake/config-ix.cmake</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>@@ -149,7 +149,7 @@ set(ALL_ASAN_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64}</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> ${MIPS32} ${MIPS64} ${PPC64})</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>set(ALL_DFSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64})</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>set(ALL_LSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64})</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>-set(ALL_MSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64})</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+set(ALL_MSAN_SUPPORTED_ARCH ${X86} ${X86_64} ${MIPS64} ${ARM64})</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>set(ALL_PROFILE_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64} ${PPC64}</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> ${MIPS32} ${MIPS64})</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>set(ALL_TSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64} ${PPC64})</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p style="margin-left:18.0pt">-<span style="font-size:7.0pt"> </span><b>lib/msan/msan.h:</b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>diff --git a/lib/msan/msan.h b/lib/msan/msan.h</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>index be74f6e..10b5b05 100644</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>--- a/lib/msan/msan.h</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+++ b/lib/msan/msan.h</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>@@ -147,6 +147,26 @@ const MappingDesc kMemoryLayout[] = {</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>#define MEM_TO_SHADOW(mem) (LINEARIZE_MEM((mem)) + 0x100000000000ULL)</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>#define SHADOW_TO_ORIGIN(shadow) (((uptr)(shadow)) + 0x280000000000)</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+#elif SANITIZER_LINUX && SANITIZER_WORDSIZE == 32</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+const MappingDesc kMemoryLayout[] = {</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ {0x00000000ULL, 0x10000000ULL, MappingDesc::APP, "app-1"},</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ {0x10000000ULL, 0x20000000ULL, MappingDesc::SHADOW, "shadow-1"},</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ {0x20000000ULL, 0x30000000ULL, MappingDesc::ORIGIN, "origin-1"},</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ {0x30000000ULL, 0x50000000ULL, MappingDesc::INVALID, "invalid"},</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ {0x50000000ULL, 0x60000000ULL, MappingDesc::APP, "app-2"},</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ {0x60000000ULL, 0x70000000ULL, MappingDesc::SHADOW, "shadow-2"},</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ {0x70000000ULL, 0x80000000ULL, MappingDesc::ORIGIN, "origin-2"},
</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ {0x80000000ULL, 0x90000000ULL, MappingDesc::SHADOW, "shadow-3"},</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ {0x90000000ULL, 0xa0000000ULL, MappingDesc::ORIGIN, "origin-3"},</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ {0xa0000000ULL, 0xf0000000ULL, MappingDesc::INVALID, "invalid"},</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ {0xf0000000ULL, 0xffffffffULL, MappingDesc::APP, "app-3"},</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+};</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+#define MOVE_MEM(mem) \</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ ((uptr)(mem) & ~0x80000000ULL)</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+#define MEM_TO_SHADOW(mem) (MOVE_MEM((mem)) + 0x10000000ULL)</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+#define SHADOW_TO_ORIGIN(mem) (((uptr)(mem)) + 0x10000000ULL)</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>#elif SANITIZER_LINUX && SANITIZER_WORDSIZE == 64</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> #ifdef MSAN_LINUX_X86_64_OLD_MAPPING</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p style="margin-left:18.0pt">-<span style="font-size:7.0pt"> </span><b>lib/msan/msan_allocator.cc:</b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>diff --git a/lib/msan/msan_allocator.cc b/lib/msan/msan_allocator.cc</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>index b7d3947..dae6d72 100644</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>--- a/lib/msan/msan_allocator.cc</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+++ b/lib/msan/msan_allocator.cc</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>@@ -49,7 +49,15 @@ struct MsanMapUnmapCallback {</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> typedef SizeClassAllocator32<0, SANITIZER_MMAP_RANGE_SIZE, sizeof(Metadata),</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> SizeClassMap, kRegionSizeLog, ByteMap,</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> MsanMapUnmapCallback> PrimaryAllocator;</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>-</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+#elif defined (__i386__)</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+static const uptr kMaxAllowedMallocSize = 3UL << 30;</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ static const uptr kRegionSizeLog = 20;</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ static const uptr kNumRegions = SANITIZER_MMAP_RANGE_SIZE >> kRegionSizeLog;</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ typedef FlatByteMap<kNumRegions> ByteMap;</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ typedef CompactSizeClassMap SizeClassMap;</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ typedef SizeClassAllocator32<0, SANITIZER_MMAP_RANGE_SIZE, sizeof(Metadata),</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ SizeClassMap, kRegionSizeLog, ByteMap,</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ MsanMapUnmapCallback> PrimaryAllocator;</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>#elif defined(__x86_64__)</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>#if SANITIZER_LINUX && !defined(MSAN_LINUX_X86_64_OLD_MAPPING)</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> static const uptr kAllocatorSpace = 0x700000000000ULL;</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p style="margin-left:18.0pt">-<span style="font-size:7.0pt"> </span><b>lib/msan/msan_linux.cc:</b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>diff --git a/lib/msan/msan_linux.cc b/lib/msan/msan_linux.cc</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>index d6a9588..ca59564 100644</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>--- a/lib/msan/msan_linux.cc</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+++ b/lib/msan/msan_linux.cc</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>@@ -82,7 +82,7 @@ static void CheckMemoryLayoutSanity() {</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> CHECK_LT(start, end);</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> CHECK_EQ(prev_end, start);</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> CHECK(addr_is_type(start, type));</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>- CHECK(addr_is_type((start + end) / 2, type));</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ CHECK(addr_is_type(start/2 + end/2, type));</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> CHECK(addr_is_type(end - 1, type));</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> if (type == MappingDesc::APP) {</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> uptr addr = start;</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>@@ -90,7 +90,7 @@ static void CheckMemoryLayoutSanity() {</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> CHECK(MEM_IS_ORIGIN(MEM_TO_ORIGIN(addr)));</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> CHECK_EQ(MEM_TO_ORIGIN(addr), SHADOW_TO_ORIGIN(MEM_TO_SHADOW(addr)));</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>- addr = (start + end) / 2;</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ addr = start/2 + end/2;</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> CHECK(MEM_IS_SHADOW(MEM_TO_SHADOW(addr)));</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> CHECK(MEM_IS_ORIGIN(MEM_TO_ORIGIN(addr)));</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> CHECK_EQ(MEM_TO_ORIGIN(addr), SHADOW_TO_ORIGIN(MEM_TO_SHADOW(addr)));</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p style="margin-left:18.0pt">-<span style="font-size:7.0pt"> </span><b>lib/sanitizer_common/sanitizer_platform_interceptors.h:</b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>--- a/lib/sanitizer_common/sanitizer_platform_interceptors.h</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+++ b/lib/sanitizer_common/sanitizer_platform_interceptors.h</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>@@ -211,7 +211,7 @@</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i> SI_FREEBSD || SI_MAC || SI_LINUX_NOT_ANDROID</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>#define SANITIZER_INTERCEPT_ETHER_R SI_FREEBSD || SI_LINUX_NOT_ANDROID</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>#define SANITIZER_INTERCEPT_SHMCTL \</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>- ((SI_FREEBSD || SI_LINUX_NOT_ANDROID) && SANITIZER_WORDSIZE == 64)</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>+ ((SI_FREEBSD || SI_LINUX_NOT_ANDROID) && (SANITIZER_WORDSIZE == 64 || defined(__i386__)))</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>#define SANITIZER_INTERCEPT_RANDOM_R SI_LINUX_NOT_ANDROID</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>#define SANITIZER_INTERCEPT_PTHREAD_ATTR_GET SI_NOT_WINDOWS</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><i>#define SANITIZER_INTERCEPT_PTHREAD_ATTR_GETINHERITSCHED \</i><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="DE" style="font-size:10.0pt;font-family:"Arial",sans-serif">Stefan Pusl</span><o:p></o:p></p>
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<p><span style="font-size:7.0pt">Intel Deutschland GmbH<br>
Registered Address: Am Campeon 10-12, 85579 Neubiberg, Germany<br>
Tel: +49 89 99 8853-0, <a href="http://www.intel.de" target="_blank">www.intel.de</a><br>
Managing Directors: Christin Eisenschmid, Christian Lamprechter<br>
Chairperson of the Supervisory Board: Nicole Lau<br>
Registered Office: Munich<br>
Commercial Register: Amtsgericht Muenchen HRB 186928</span><o:p></o:p></p>
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_______________________________________________<br>
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<a href="mailto:llvm-dev@lists.llvm.org">llvm-dev@lists.llvm.org</a><br>
<a href="http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev" target="_blank">http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev</a><o:p></o:p></p>
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<p><font style="font-size: 9px;">Intel Deutschland GmbH<br>
Registered Address: Am Campeon 10-12, 85579 Neubiberg, Germany<br>
Tel: +49 89 99 8853-0, www.intel.de<br>
Managing Directors: Christin Eisenschmid, Christian Lamprechter<br>
Chairperson of the Supervisory Board: Nicole Lau<br>
Registered Office: Munich<br>
Commercial Register: Amtsgericht Muenchen HRB 186928</font><br>
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