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List: binutils-bugs
Subject: Infinite recursion in binutils 2.27 (ld, gdb, c++filt)
From: Matthieu Monrocq <matthieu.monrocq () imc ! com>
Date: 2016-09-29 15:20:49
Message-ID: 1475162449227.65881 () imc ! com
[Download RAW message or body]
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Hello,
We are hitting an infinite recursion in "ld", eventually leading to a stackoverflow \
and segfault, when using the --version-script option with a C++ symbol (which \
"forces" ld to demangle symbols).
This bug also affects our versions of c++filt and gdb.
Commands used:
$ /opt/imc/gcc-6.2.0/bin/g++ -fPIC -std=c++14 -O3 -ggdb -o main.cpp.o -c main.cpp
$ /opt/imc/gcc-6.2.0/bin/g++ -fPIC -std=c++14 -shared -o libCrash.so main.cpp.o \
-Wl,--version-script=simple.map
collect2: fatal error: ld terminated with signal 11 [Segmentation fault]
compilation terminated.
And:
$ c++filt _ZSt7forwardIRP22XxxxxxxxXxxxxxxXxxxxxxI28XxxxxxxxXxxxXxxxXxxxXxxxxxxxZN3TBQ \
26XxxxxxxxXxxxXxxxXxxxxxxxxxINS2_14TBQXxxxXxxxxxxINS2_8TBQXxxxxINS2_12XxXxxXxxxxxxINS2 \
_15XxxxxxxxXxxxxxxEEEEEEENS2_10TBQXxxxxxxEE5xxxxxEvEUlRT_RT0_PT1_E_Z28xxxxxxXxxxxxxxXx \
xxxxxXxxxxxxIS1_SJ_ESt10unique_ptrI31XxxxxxxxXxxxxxxXxxxxxxXxxxxxxxxISD_ESt14default_d \
eleteISN_EESF_EUlR5XxxxxE_ZSK_IS1_SJ_ESQ_SF_EUlvE0_EEOSD_RNSt16remove_referenceISD_E4typeE
Segmentation fault
Versions used:
$ cat /etc/centos-release
CentOS Linux release 7.2.1511 (Core)
$ /opt/imc/gcc-6.2.0/bin/g++ --version
g++ (GCC) 6.2.0
$ c++filt --version
GNU c++filt version 2.23.52.0.1-55.el7 20130226
$ /opt/imc/gcc-6.2.0/bin/ld --version
GNU ld (GNU Binutils) 2.27
$ gdb --version
GNU gdb (GDB) Red Hat Enterprise Linux 7.10.50.20151113-33.el7
Notes:
The symbols reported in those bug reports do not crash my c++filt:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61233
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61460
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61805
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72822
However the symbol reported in this one does crash c++filt (although not ld):
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70909
Kind Regards,
Matthieu Monrocq
IMC financial markets | Strawinskylaan 377, WTC D-tower, 1077 XX Amsterdam | \
www.imc.com<http://www.imc.nl/> P +31 (0)20 798 8601 | E \
matthieu.monrocq@imc.com<mailto:julien.lehuen@imc.nl>
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[Attachment #5 (text/html)]
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none"><!--P{margin-top:0;margin-bottom:0;} \
--></style> </head>
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<p>Hello,</p>
<p><br>
</p>
<p>We are hitting an infinite recursion in "ld", eventually leading to a \
stackoverflow and segfault, when using the --version-script option with a C++ \
symbol (which "forces" ld to demangle symbols).<br> </p>
<p><br>
</p>
<p>This bug also affects our versions of c++filt and gdb.</p>
<p><br>
</p>
<p><br>
</p>
<p>Commands used:</p>
<p><br>
</p>
<p>$ /opt/imc/gcc-6.2.0/bin/g++ -fPIC -std=c++14 -O3 -ggdb -o \
main.cpp.o -c main.cpp<br> <br>
$ /opt/imc/gcc-6.2.0/bin/g++ -fPIC -std=c++14 -shared -o libCrash.so \
main.cpp.o -Wl,--version-script=simple.map<br>
collect2: fatal error: ld terminated with signal 11 [Segmentation fault]<br>
compilation terminated.<br>
</p>
<p><br>
</p>
<p><br>
</p>
<p>And:</p>
<p><br>
</p>
<p>$ c++filt \
_ZSt7forwardIRP22XxxxxxxxXxxxxxxXxxxxxxI28XxxxxxxxXxxxXxxxXxxxXxxxxxxxZN3TBQ26Xxxxxxxx \
XxxxXxxxXxxxxxxxxxINS2_14TBQXxxxXxxxxxxINS2_8TBQXxxxxINS2_12XxXxxXxxxxxxINS2_15Xxxxxxx \
xXxxxxxxEEEEEEENS2_10TBQXxxxxxxEE5xxxxxEvEUlRT_RT0_PT1_E_Z28xxxxxxXxxxxxxxXxxxxxxXxxxx \
xxIS1_SJ_ESt10unique_ptrI31XxxxxxxxXxxxxxxXxxxxxxXxxxxxxxxISD_ESt14default_deleteISN_E \
ESF_EUlR5XxxxxE_ZSK_IS1_SJ_ESQ_SF_EUlvE0_EEOSD_RNSt16remove_referenceISD_E4typeE<br> \
Segmentation fault<br> <br>
</p>
<p><br>
</p>
<p>Versions used:</p>
<p><br>
</p>
<p>$ cat /etc/centos-release<br>
CentOS Linux release 7.2.1511 (Core) <br>
<br>
</p>
<p>$ /opt/imc/gcc-6.2.0/bin/g++ --version<br>
g++ (GCC) 6.2.0<br>
<br>
</p>
<p>$ c++filt --version<br>
GNU c++filt version 2.23.52.0.1-55.el7 20130226<br>
</p>
<p><br>
</p>
<p>$ /opt/imc/gcc-6.2.0/bin/ld --version<br>
GNU ld (GNU Binutils) 2.27<br>
<br>
</p>
<p>$ gdb --version<br>
GNU gdb (GDB) Red Hat Enterprise Linux 7.10.50.20151113-33.el7<br>
<br>
</p>
<p><br>
</p>
<p>Notes:<br>
</p>
<p><br>
The symbols reported in those bug reports do not crash my c++filt:<br>
</p>
<p><a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61233">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61233</a></p>
<p><a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61460">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61460</a><br>
</p>
<p><a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61805">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61805</a><br>
</p>
<p><a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72822">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72822</a></p>
<p><br>
</p>
<p>However the symbol reported in this one does crash c++filt (although not \
ld):<br> </p>
<p><a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70909">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70909</a><br>
</p>
<p><br>
</p>
<div id="Signature">
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lang="en-US"><font face="Times New Roman" size="3"><span style="font-size:12pt"><font \
face="Arial" color="#0092CD" size="2"><span style="font-size:9pt">Kind Regards,<br>
<br>
</span></font></span></font></span><b>Matthieu Monrocq</b></span></font><font \
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</font><font face="Arial" color="#0092CD" size="2"><span style="font-size:9pt">IMC \
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read, disseminate, disclose or duplicate it.<br> <br>
If you receive this e-mail unintentionally, please inform us immediately by \
"reply" and then delete it from your system. Although this information has \
been compiled with great care, neither IMC Financial Markets & Asset Management \
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nor shall it be bound in any way by the contents of this e-mail or its attachments. \
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["main.cpp" (text/x-c++src)]
#include <iostream>
extern "C" {
void _ZSt7forwardIRP22XxxxxxxxXxxxxxxXxxxxxxI28XxxxxxxxXxxxXxxxXxxxXxxxxxxxZN3TBQ26Xxx \
xxxxxXxxxXxxxXxxxxxxxxxINS2_14TBQXxxxXxxxxxxINS2_8TBQXxxxxINS2_12XxXxxXxxxxxxINS2_15Xx \
xxxxxxXxxxxxxEEEEEEENS2_10TBQXxxxxxxEE5xxxxxEvEUlRT_RT0_PT1_E_Z28xxxxxxXxxxxxxxXxxxxxx \
XxxxxxxIS1_SJ_ESt10unique_ptrI31XxxxxxxxXxxxxxxXxxxxxxXxxxxxxxxISD_ESt14default_delete \
ISN_EESF_EUlR5XxxxxE_ZSK_IS1_SJ_ESQ_SF_EUlvE0_EEOSD_RNSt16remove_referenceISD_E4typeE() \
{ std::cout << "Hello, World\n";
}
}
int main() {
_ZSt7forwardIRP22XxxxxxxxXxxxxxxXxxxxxxI28XxxxxxxxXxxxXxxxXxxxXxxxxxxxZN3TBQ26Xxxx \
xxxxXxxxXxxxXxxxxxxxxxINS2_14TBQXxxxXxxxxxxINS2_8TBQXxxxxINS2_12XxXxxXxxxxxxINS2_15Xxx \
xxxxxXxxxxxxEEEEEEENS2_10TBQXxxxxxxEE5xxxxxEvEUlRT_RT0_PT1_E_Z28xxxxxxXxxxxxxxXxxxxxxX \
xxxxxxIS1_SJ_ESt10unique_ptrI31XxxxxxxxXxxxxxxXxxxxxxXxxxxxxxxISD_ESt14default_deleteI \
SN_EESF_EUlR5XxxxxE_ZSK_IS1_SJ_ESQ_SF_EUlvE0_EEOSD_RNSt16remove_referenceISD_E4typeE();
}
["simple.map" (text/plain)]
{ global:
extern "C++" {
__wrap_memcpy;
};
local: *;
};
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