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<base href="http://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [MC][Aarch64] -no-exec-stack causes crash"
href="http://llvm.org/bugs/show_bug.cgi?id=21988">21988</a>
</td>
</tr>
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<th>Summary</th>
<td>[MC][Aarch64] -no-exec-stack causes crash
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows NT
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>weimingz@codeaurora.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>cat test.s
.global foo
.type foo,%function
foo:
mov x0,x1
ret
llvm-mc ./test.s -arch=aarch64 -no-exec-stack -filetype obj -o test.o
llvm-mc: llvm/include/llvm/MC/MCStreamer.h:352: virtual void
llvm::MCStreamer::SwitchSection(const llvm::MCSection*, const llvm::MCExpr*):
Assertion `Section && "Cannot switch to a null section!"' failed.
#0 0x593582 llvm::sys::PrintStackTrace(_IO_FILE*)
(/install/bin/llvm-mc+0x593582)
#1 0x591891 SignalHandler(int) (/install/bin/llvm-mc+0x591891)
#2 0x7ff6e2d4c8f0 __restore_rt (/lib/libpthread.so.0+0xf8f0)
#3 0x7ff6e202ab25 gsignal
/build/buildd/eglibc-2.11.1/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:64:0
#4 0x7ff6e202e670 abort /build/buildd/eglibc-2.11.1/stdlib/abort.c:94:0
#5 0x7ff6e20239f1 __assert_fail
/build/buildd/eglibc-2.11.1/assert/assert.c:81:0
#6 0x450e1e
(/prj/llvm-arm/home/nightly/install/community-mainline/cross/2014-12-18/bin/llvm-mc+0x450e1e)
#7 0x40d40c main (/install/bin/llvm-mc+0x40d40c)
#8 0x7ff6e2015c4d __libc_start_main
/build/buildd/eglibc-2.11.1/csu/libc-start.c:258:0
#9 0x40e84d _start (/install/bin/llvm-mc+0x40e84d)
Stack dump:
0. Program arguments: llvm-mc ./test.s -arch=aarch64 -no-exec-stack
-filetype obj -o test.o
[1] 31130 abort llvm-mc ./test.s -arch=aarch64 -no-exec-stack -filetype
obj -o test.o</pre>
</div>
</p>
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