<div dir="ltr"><div>Just to add another data point here I pulled the latest and built on a 32-bit Ubuntu 12.04 machine using gcc 4.8.1 and configure/make (not cmake) I get the same error as Matthew.<br><br><span style="font-family:courier new,monospace">andrew@linodebox:~/src/llvm/Release+Asserts/bin$ uname -a<br>
Linux linodebox 3.12.6-x86-linode55 #2 SMP Tue Jan 14 08:41:36 EST 2014 i686 i686 i386 GNU/Linux<br>andrew@linodebox:~/src/llvm/Release+Asserts/bin$ ./lldb --version<br>lldb version 3.5 (<a href="http://llvm.org/git/lldb">http://llvm.org/git/lldb</a> revision 18f105d6a0ec19261891cae0a70e1d12b0dd77db clang revision 30577e6c4f5ba66b8dc832ed9955b1a7475f788a llvm revision abad3545bdf7d89ea9b8c8e0ba30edc45c0118bb)<br>
andrew@linodebox:~/src/llvm/Release+Asserts/bin$ cd ../../tools/lldb/<br>andrew@linodebox:~/src/llvm/tools/lldb$ git log | head<br>commit 18f105d6a0ec19261891cae0a70e1d12b0dd77db<br>Author: Jim Ingham <<a href="mailto:jingham@apple.com">jingham@apple.com</a>><br>
Date: Sat Mar 1 00:17:06 2014 +0000<br><br> Make sure the exe_ctx passed to ClangUserExpression::Execute has a valid thread.<br><br> <rdar://problem/15949113><br><br><br> git-svn-id: <a href="https://llvm.org/svn/llvm-project/lldb/trunk@202561">https://llvm.org/svn/llvm-project/lldb/trunk@202561</a> 91177308-0d34-0410-b5e6-96231b3b80d8<br>
andrew@linodebox:~/src/llvm/tools/lldb$ cd -<br>/home/andrew/src/llvm/Release+Asserts/bin<br>andrew@linodebox:~/src/llvm/Release+Asserts/bin$ file /usr/bin/python2.7<br>/usr/bin/python2.7: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=0xf96ecbe97bf2a78f1d3de7be85b849dfdcbb6083, stripped<br>
andrew@linodebox:~/src/llvm/Release+Asserts/bin$ file lldb<br>lldb: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=0x670a204eb95a63dc2d59f7e16436de19be894446, not stripped<br>
andrew@linodebox:~/src/llvm/Release+Asserts/bin$ ./lldb /usr/bin/python<br>Current executable set to '/usr/bin/python' (i386).<br>(lldb) r<br>Process 12316 launching<br>lldb: RegisterContextPOSIXProcessMonitor_x86.cpp:511: virtual bool RegisterContextPOSIXProcessMonitor_x86_64::IsWatchpointHit(uint32_t): Assertion `false && "Could not initialize watchpoint registers"' failed.<br>
Aborted</span><br><br></div>Hope that helps,<br>Andrew<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Feb 28, 2014 at 5:13 PM, Todd Fiala <span dir="ltr"><<a href="mailto:tfiala@google.com" target="_blank">tfiala@google.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hey Matthew,<div><br></div><div>I just did a double check on my Ubuntu 13.10 x86 VM. Here were the results I got, which seem to be different than yours (I've got an x86 32-bit exe debugging fine with an x86 32-bit lldb):</div>
<div><br></div><div><div><font face="courier new, monospace" size="1">tfiala@ub-x86-13:~/lldb/work/build$ uname -a</font></div><div><font face="courier new, monospace" size="1">Linux ub-x86-13.10-01 3.11.0-17-generic #31-Ubuntu SMP Mon Feb 3 21:53:31 UTC 2014 i686 i686 i686 GNU/Linux</font></div>
<div><font face="courier new, monospace" size="1">tfiala@ub-x86-13:~/lldb/work/build$ pushd ../llvm/tools/lldb</font></div><div><font face="courier new, monospace" size="1">~/lldb/work/llvm/tools/lldb ~/lldb/work/build</font></div>
<div><font face="courier new, monospace" size="1">tfiala@ub-x86-13:~/lldb/work/llvm/tools/lldb$ git log | head</font></div><div><font face="courier new, monospace" size="1">commit aa7f071df1e47c4d63b4cab81c5b3a375e4b4a50</font></div>
<div><font face="courier new, monospace" size="1">Author: Ed Maste <<a href="mailto:emaste@freebsd.org" target="_blank">emaste@freebsd.org</a>></font></div><div><font face="courier new, monospace" size="1">Date: Fri Feb 28 13:46:51 2014 +0000</font></div>
<div><font face="courier new, monospace" size="1"><br></font></div><div><font face="courier new, monospace" size="1"> Fix types to eliminate compiler warnings in FreeBSD host class</font></div><div><font face="courier new, monospace" size="1"> </font></div>
<div><font face="courier new, monospace" size="1"> </font></div><div><font face="courier new, monospace" size="1"> git-svn-id: <a href="https://llvm.org/svn/llvm-project/lldb/" target="_blank">https://llvm.org/svn/llvm-project/lldb/</a><b>trunk@202498</b> 91177308-0d34-0410-b5e6-96231b3b80d8</font></div>
<div><font face="courier new, monospace" size="1"><br></font></div><div><font face="courier new, monospace" size="1">commit 3ca8916b078d298cc42ed61ffa2739c67daf7987</font></div><div><font face="courier new, monospace" size="1">tfiala@ub-x86-13:~/lldb/work/llvm/tools/lldb$ # svn trunk@202498</font></div>
<div><font face="courier new, monospace" size="1">tfiala@ub-x86-13:~/lldb/work/llvm/tools/lldb$ popd</font></div><div><font face="courier new, monospace" size="1">~/lldb/work/build</font></div><div><font face="courier new, monospace" size="1">tfiala@ub-x86-13:~/lldb/work/build$ file ~/play/size_data/main</font></div>
<div><font face="courier new, monospace" size="1">/home/tfiala/play/size_data/main: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=0x1749b467dda063db39d8bf61a26aec8e2f7a062e, not stripped</font></div>
<div><font face="courier new, monospace" size="1">tfiala@ub-x86-13:~/lldb/work/build$ lldb -v</font></div><div><font face="courier new, monospace" size="1">lldb: command not found</font></div><div><font face="courier new, monospace" size="1">tfiala@ub-x86-13:~/lldb/work/build$ bin/lldb -v</font></div>
<div><font face="courier new, monospace" size="1">lldb version 3.5 (<a href="http://llvm.org/git/lldb.git" target="_blank">http://llvm.org/git/lldb.git</a> revision aa7f071df1e47c4d63b4cab81c5b3a375e4b4a50)</font></div><div>
<font face="courier new, monospace" size="1">tfiala@ub-x86-13:~/lldb/work/build$ bin/lldb ~/play/size_data/main</font></div>
<div><font face="courier new, monospace" size="1">Current executable set to '/home/tfiala/play/size_data/main' (i386).</font></div><div><font face="courier new, monospace" size="1">(lldb) b main.cpp:5</font></div>
<div><font face="courier new, monospace" size="1">Breakpoint 1: where = main`main + 9 at main.cpp:5, address = 0x08048426</font></div><div><font face="courier new, monospace" size="1">(lldb) run</font></div><div><font face="courier new, monospace" size="1">Process 24270 launching</font></div>
<div><font face="courier new, monospace" size="1">Process 24270 stopped</font></div><div><font face="courier new, monospace" size="1">* thread #1: tid = 24270, 0xb775f190, name = 'main', stop reason = trace</font></div>
<div><font face="courier new, monospace" size="1"> frame #0: 0xb775f190</font></div><div><font face="courier new, monospace" size="1">-> 0xb775f190: movl %esp, %eax</font></div><div><font face="courier new, monospace" size="1"> 0xb775f192: calll 0xb7762b70</font></div>
<div><font face="courier new, monospace" size="1"> 0xb775f197: movl %eax, %edi</font></div><div><font face="courier new, monospace" size="1"> 0xb775f199: calll 0xb775f180</font></div><div><font face="courier new, monospace" size="1">(lldb) Process 24270 launched: '/home/tfiala/play/size_data/main' (i386)</font></div>
<div><font face="courier new, monospace" size="1">Process 24270 stopped</font></div><div><font face="courier new, monospace" size="1">* thread #1: tid = 24270, 0x08048426 main`main + 9 at main.cpp:5, name = 'main', stop reason = breakpoint 1.1</font></div>
<div><font face="courier new, monospace" size="1"> frame #0: 0x08048426 main`main + 9 at main.cpp:5</font></div><div><font face="courier new, monospace" size="1"> 2 <span style="white-space:pre-wrap"> </span></font></div>
<div><font face="courier new, monospace" size="1"> 3 <span style="white-space:pre-wrap"> </span>int main()</font></div><div><font face="courier new, monospace" size="1"> 4 <span style="white-space:pre-wrap"> </span>{</font></div>
<div><font face="courier new, monospace" size="1">-> 5 <span style="white-space:pre-wrap"> </span> printf("sizeof(long int): %u\n", sizeof(long int));</font></div><div><font face="courier new, monospace" size="1"> 6 <span style="white-space:pre-wrap"> </span> return 0;</font></div>
<div><font face="courier new, monospace" size="1"> 7 <span style="white-space:pre-wrap"> </span>}</font></div><div><font face="courier new, monospace" size="1">(lldb) step</font></div><div><font face="courier new, monospace" size="1">Process 24270 stopped</font></div>
<div><font face="courier new, monospace" size="1">* thread #1: tid = 24270, 0xb75e27df libc.so.6`__printf(format=0x080484e0) + 15 at printf.c:33, name = 'main', stop reason = step in</font></div><div><font face="courier new, monospace" size="1"> frame #0: 0xb75e27df libc.so.6`__printf(format=0x080484e0) + 15 at printf.c:33</font></div>
<div><font face="courier new, monospace" size="1">(lldb) bt</font></div><div><font face="courier new, monospace" size="1">* thread #1: tid = 24270, 0xb75e27df libc.so.6`__printf(format=0x080484e0) + 15 at printf.c:33, name = 'main', stop reason = step in</font></div>
<div><font face="courier new, monospace" size="1"> * frame #0: 0xb75e27df libc.so.6`__printf(format=0x080484e0) + 15 at printf.c:33</font></div><div><font face="courier new, monospace" size="1"> frame #1: 0x0804843a main`main + 29 at main.cpp:5</font></div>
<div><font face="courier new, monospace" size="1">(lldb) exit</font></div><div><font face="courier new, monospace" size="1">Quitting LLDB will kill one or more processes. Do you really want to proceed: [Y/n] y</font></div>
<div><font face="courier new, monospace" size="1">tfiala@ub-x86-13:~/lldb/work/build$ </font></div></div><div><br></div><div>I'm building with gcc 4.8.1 (stock on that machine), with packages:</div><div>swig</div><div>
libedit-dev</div><div>python-dev</div><div>ncurses-dev</div><div><br></div><div>I happen to be using cmake/ninja to build this. If you're using configure/make, I can try that too to make sure there isn't any difference.</div>
</div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Feb 28, 2014 at 6:58 AM, Todd Fiala <span dir="ltr"><<a href="mailto:tfiala@google.com" target="_blank">tfiala@google.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hey Matthew,<div><div><br></div><div>> Initial investigations suggest that the offset of dr6 is being calculated incorrectly. The trace says 0x2A8, it should be 0x114.</div>
<div><br></div></div><div>That sounds like you are once again seeing an x86_64 register infos section (using the x86_64 fpu register set) vs. the i386 set IIRC.</div>
<div><br></div><div>Your host is a 32-bit x86 architecture, right? (The one where you are running lldb?)</div><div><br></div><div>If you do a svn status or git status, can you double check that you don't have any local changes? I'll try on a 32-bit host with a clean repo to make sure I didn't have any cruft on my end confusing the results.</div>
</div><div class="gmail_extra"><div><div><br><br><div class="gmail_quote">On Fri, Feb 28, 2014 at 6:02 AM, Matthew Gardiner <span dir="ltr"><<a href="mailto:mg11@csr.com" target="_blank">mg11@csr.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Initial investigations suggest that the offset of dr6 is being calculated incorrectly. The trace says 0x2A8, it should be 0x114.<div><br>
<br>
(lldb) log enable linux ptrace<br>
(lldb) run<br></div>
operation ptrace(PTRACE_SETOPTIONS, 3665, (nil), 0x58, 0)=0 called from file /home/mg11/src/heracles2/llvm/<u></u>tools/lldb/source/Plugins/<u></u>Process/Linux/ProcessMonitor.<u></u>cpp line 1456<br>
Process 3665 launching<div><br>
operation ptrace(PTRACE_TRACEME, 0, (nil), (nil), 0)=0 called from file /home/mg11/src/heracles2/llvm/<u></u>tools/lldb/source/Plugins/<u></u>Process/Linux/ProcessMonitor.<u></u>cpp line 1196<br></div>
operation ptrace(PTRACE_PEEKDATA, 3665, 0x8048340, (nil), 0)=895EED31 called from file /home/mg11/src/heracles2/llvm/<u></u>tools/lldb/source/Plugins/<u></u>Process/Linux/ProcessMonitor.<u></u>cpp line 245<br>
operation ptrace(PTRACE_PEEKDATA, 3665, 0x8048340, (nil), 0)=895EED31 called from file /home/mg11/src/heracles2/llvm/<u></u>tools/lldb/source/Plugins/<u></u>Process/Linux/ProcessMonitor.<u></u>cpp line 245<br>
operation ptrace(PTRACE_POKEDATA, 3665, 0x8048340, 0x895eedcc, 0)=0 called from file /home/mg11/src/heracles2/llvm/<u></u>tools/lldb/source/Plugins/<u></u>Process/Linux/ProcessMonitor.<u></u>cpp line 319<br>
operation ptrace(PTRACE_PEEKDATA, 3665, 0x8048340, (nil), 0)=895EEDCC called from file /home/mg11/src/heracles2/llvm/<u></u>tools/lldb/source/Plugins/<u></u>Process/Linux/ProcessMonitor.<u></u>cpp line 245<br>
MATTG IWH begin<br>
WriteRegisterValue dr6 tid=3665 offset=2A8 val=FFFFFFFF<br>
operation ptrace(PTRACE_POKEUSER, 3665, 0x2a8, 0xffffffff, 0)=FFFFFFFF called from file /home/mg11/src/heracles2/llvm/<u></u>tools/lldb/source/Plugins/<u></u>Process/Linux/ProcessMonitor.<u></u>cpp line 543<div>
<div><br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div></div></div><span><font color="#888888">-- <br><div dir="ltr"><table style="color:rgb(136,136,136);font-family:'Times New Roman'" cellpadding="0" cellspacing="0">
<tbody><tr style="color:rgb(85,85,85);font-family:sans-serif;font-size:small">
<td style="border-top-style:solid;border-top-color:rgb(213,15,37);border-top-width:2px" nowrap>Todd Fiala |</td><td style="border-top-style:solid;border-top-color:rgb(51,105,232);border-top-width:2px" nowrap> Software Engineer |</td>
<td style="border-top-style:solid;border-top-color:rgb(0,153,57);border-top-width:2px" nowrap> <a href="mailto:tfiala@google.com" style="color:rgb(17,85,204)" target="_blank"><span style="background-color:rgb(255,255,204);color:rgb(34,34,34);background-repeat:initial initial">tfiala@google.com</span></a> |</td>
<td style="border-top-style:solid;border-top-color:rgb(238,178,17);border-top-width:2px" nowrap><font color="#1155cc"> <a>650-943-3180</a></font></td></tr></tbody></table><br></div>
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<td style="border-top-style:solid;border-top-color:rgb(213,15,37);border-top-width:2px" nowrap>Todd Fiala |</td><td style="border-top-style:solid;border-top-color:rgb(51,105,232);border-top-width:2px" nowrap> Software Engineer |</td>
<td style="border-top-style:solid;border-top-color:rgb(0,153,57);border-top-width:2px" nowrap> <a href="mailto:tfiala@google.com" style="color:rgb(17,85,204)" target="_blank"><span style="background-color:rgb(255,255,204);color:rgb(34,34,34);background-repeat:initial initial">tfiala@google.com</span></a> |</td>
<td style="border-top-style:solid;border-top-color:rgb(238,178,17);border-top-width:2px" nowrap><font color="#1155cc"> <a>650-943-3180</a></font></td></tr></tbody></table><br></div>
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