<html>
<head>
<base href="http://llvm.org/bugs/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Cannot form relocation for reference to GOT in 64-bit X86"
href="http://llvm.org/bugs/show_bug.cgi?id=19470">19470</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Cannot form relocation for reference to GOT in 64-bit X86
</td>
</tr>
<tr>
<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</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>Backend: X86
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>david.majnemer@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>consider:
.text
.file "/var/tmp/t.ll"
.globl fun
.align 16, 0x90
.type fun,@function
fun: # @fun
.cfi_startproc
# BB#0:
movl $_GLOBAL_OFFSET_TABLE_, %eax
retq
.Ltmp0:
.size fun, .Ltmp0-fun
.cfi_endproc
.section ".note.GNU-stack","",@progbits
go with:
~/llvm/build/bin/llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu t.s -o -
#0 0x00007ffff681b425 in __GI_raise (sig=<optimized out>) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0x00007ffff681eb8b in __GI_abort () at abort.c:91
#2 0x00000000006ce406 in llvm::llvm_unreachable_internal (msg=0xe04448
"invalid fixup kind!", file=0xee8505
"~/llvm/src/lib/Target/X86/MCTargetDesc/X86ELFObjectWriter.cpp", line=0x64) at
~/llvm/src/lib/Support/ErrorHandling.cpp:99
#3 0x00000000008477c9 in (anonymous
namespace)::X86ELFObjectWriter::GetRelocType (this=0x1431bf0, Target=...,
Fixup=..., IsPCRel=0x0) at
~/llvm/src/lib/Target/X86/MCTargetDesc/X86ELFObjectWriter.cpp:100
#4 0x0000000000862944 in (anonymous namespace)::ELFObjectWriter::GetRelocType
(this=0x1435f40, Target=..., Fixup=..., IsPCRel=0x0) at
~/llvm/src/lib/MC/ELFObjectWriter.cpp:186
#5 0x0000000000857e4d in (anonymous
namespace)::ELFObjectWriter::RecordRelocation (this=0x1435f40, Asm=...,
Layout=..., Fragment=0x1439a10, Fixup=..., Target=..., IsPCRel=@0x7fffffffb8e7:
0x0, FixedValue=@0x7fffffffb8e8: 0x1) at
~/llvm/src/lib/MC/ELFObjectWriter.cpp:881
#6 0x00000000005ebd4d in llvm::MCAssembler::handleFixup (this=0x1435510,
Layout=..., F=..., Fixup=...) at ~/llvm/src/lib/MC/MCAssembler.cpp:751
#7 0x00000000005ec449 in llvm::MCAssembler::Finish (this=0x1435510) at
~/llvm/src/lib/MC/MCAssembler.cpp:820
#8 0x000000000087cabd in llvm::MCObjectStreamer::FinishImpl (this=0x1435320)
at ~/llvm/src/lib/MC/MCObjectStreamer.cpp:388
#9 0x0000000000871aba in llvm::MCELFStreamer::FinishImpl (this=0x1435320) at
~/llvm/src/lib/MC/MCELFStreamer.cpp:544
#10 0x00000000006360af in llvm::MCStreamer::Finish (this=0x1435320) at
~/llvm/src/lib/MC/MCStreamer.cpp:639
#11 0x0000000000648c70 in (anonymous namespace)::AsmParser::Run
(this=0x1436280, NoInitialTextSection=0x0, NoFinalize=0x0) at
~/llvm/src/lib/MC/MCParser/AsmParser.cpp:701
#12 0x000000000041e22c in AssembleInput (ProgName=0x7fffffffe062
"~/llvm/build/bin/llvm-mc", TheTarget=0x142d2f8 <llvm::TheX86_64Target>,
SrcMgr=..., Ctx=..., Str=..., MAI=..., STI=..., MCII=...) at
~/llvm/src/tools/llvm-mc/llvm-mc.cpp:335
#13 0x000000000041c171 in main (argc=0x7, argv=0x7fffffffdcc8) at
~/llvm/src/tools/llvm-mc/llvm-mc.cpp:468
It seems that we fail to do anything with X86::reloc_global_offset_table in
64-bit mode.
Note that we cannot perform the simple mapping that we have in 32-bit mode
because we need to take code-model into account.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>