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From: "aj at suse dot de" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sources.redhat.com
Subject: [Bug libc/13580] crash in glibc with dlopen and math functions
Date: Tue, 10 Jan 2012 12:18:00 -0000 [thread overview]
Message-ID: <bug-13580-131-9I0o9qx3AF@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-13580-131@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=13580
--- Comment #2 from Andreas Jaeger <aj at suse dot de> 2012-01-10 12:18:10 UTC ---
Program received signal SIGSEGV, Segmentation fault.
0x0000000000005446 in ?? ()
(gdb) info registers
rax 0x7ffff5122c88 140737304997000
rbx 0x612ff0 6369264
rcx 0xa 10
rdx 0x610400 6358016
rsi 0x7ffff513b090 140737305096336
rdi 0x0 0
rbp 0x7fffffffd950 0x7fffffffd950
rsp 0x7fffffffd840 0x7fffffffd840
r8 0x1 1
r9 0x0 0
r10 0x7fffffffd680 140737488344704
r11 0x7fffffffd800 140737488345088
r12 0x7ffff3f58cf8 140737286343928
r13 0x7ffff3f60b68 140737286376296
r14 0x7 7
r15 0x7ffff41df200 140737288991232
rip 0x5446 0x5446
eflags 0x10246 [ PF ZF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
(gdb) up
#1 0x00007ffff513b095 in floor () from /lib64/libm.so.6
(gdb) disassemble
Dump of assembler code for function floor:
0x00007ffff513b090 <+0>: callq 0x7ffff5126440 <__get_cpu_features@plt>
=> 0x00007ffff513b095 <+5>: mov %rax,%rdx
0x00007ffff513b098 <+8>: lea 0x11(%rip),%rax # 0x7ffff513b0b0
<__floor_sse41>
0x00007ffff513b09f <+15>: testl $0x80000,0x10(%rdx)
0x00007ffff513b0a6 <+22>: jne 0x7ffff513b0af <floor+31>
0x00007ffff513b0a8 <+24>: lea 0x25f71(%rip),%rax #
0x7ffff5161020 <__floor_c>
0x00007ffff513b0af <+31>: retq
End of assembler dump.
(gdb) disassemble 0x7ffff5126440
Dump of assembler code for function __get_cpu_features@plt:
0x00007ffff5126440 <+0>: jmpq *0x2edbe2(%rip) # 0x7ffff5414028
0x00007ffff5126446 <+6>: pushq $0x5
0x00007ffff512644b <+11>: jmpq 0x7ffff51263e0
End of assembler dump.
(gdb) disassemble 0x7ffff5414028
No function contains specified address.
(gdb) show 0x7ffff5414028
Undefined show command: "0x7ffff5414028". Try "help show".
(gdb) list 0x7ffff5414028
Function "0x7ffff5414028" not defined.
(gdb) x 0x7ffff5414028
0x7ffff5414028: 0x00005446
And objdump on libm.so.6 show:
0000000000005440 <__get_cpu_features@plt>:
5440: ff 25 e2 db 2e 00 jmpq *0x2edbe2(%rip) # 2f3028
<_GLOBAL_OFFSET_TABLE_+0x40>
5446: 68 05 00 00 00 pushq $0x5
544b: e9 90 ff ff ff jmpq 53e0 <_init+0x18>
So, the plt is not processed yet.
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next prev parent reply other threads:[~2012-01-10 12:18 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-10 9:49 [Bug libc/13580] New: " aj at suse dot de
2012-01-10 10:39 ` [Bug libc/13580] " allan at archlinux dot org
2012-01-10 10:55 ` aj at suse dot de
2012-01-10 12:18 ` aj at suse dot de [this message]
2012-01-10 13:30 ` idoenmez at suse dot de
2012-01-11 21:50 ` arekm at maven dot pl
2012-01-11 21:53 ` pluto at agmk dot net
2012-01-14 23:06 ` vapier at gentoo dot org
2012-01-24 12:19 ` aj at suse dot de
2014-02-16 18:27 ` jackie.rosen at hushmail dot com
2014-02-16 18:28 ` ismail at donmez dot ws
2014-05-28 19:45 ` schwab at sourceware dot org
2014-06-13 14:10 ` fweimer at redhat dot com
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