Dan Lukes wrote on 02/29/2016 01:40:
Musel bys knihovny gcc48 nejdriv stripnout, aby debugovaci informace
neobsahovaly vubec.
A to uz je snad jednodussi misto gcc 4.8 pouzit gcc 4.7 - ten snad jeste
DWARF-4 neumel.
Zkusil jsem to se 4.7
# gdb dns-terror
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This GDB was configured as "amd64-marcel-freebsd"...
(gdb) core dns-terror.core
Core was generated by 'dns-terror'.
Program terminated with signal 11, Segmentation fault.
Reading symbols from /usr/local/lib/libadns.so.1...done.
Loaded symbols for /usr/local/lib/libadns.so.1
Reading symbols from /lib/libz.so.6...done.
Loaded symbols for /lib/libz.so.6
Reading symbols from /usr/local/lib/libdb_cxx-5.3.so.0...done.
Loaded symbols for /usr/local/lib/libdb_cxx-5.3.so.0
Reading symbols from /usr/local/lib/gcc47/libstdc++.so.6...done.
Loaded symbols for /usr/local/lib/gcc47/libstdc++.so.6
Reading symbols from /lib/libm.so.5...done.
Loaded symbols for /lib/libm.so.5
Reading symbols from /usr/local/lib/gcc47/libgcc_s.so.1...done.
Loaded symbols for /usr/local/lib/gcc47/libgcc_s.so.1
Reading symbols from /lib/libc.so.7...done.
Loaded symbols for /lib/libc.so.7
Reading symbols from /lib/libthr.so.3...done.
Loaded symbols for /lib/libthr.so.3
Reading symbols from /usr/lib/libc++.so.1...done.
Loaded symbols for /usr/lib/libc++.so.1
Reading symbols from /lib/libcxxrt.so.1...done.
Loaded symbols for /lib/libcxxrt.so.1
Reading symbols from /libexec/ld-elf.so.1...done.
Loaded symbols for /libexec/ld-elf.so.1
#0 0x0000000000000000 in ?? ()
[New Thread 802c06400 (LWP 100134/<unknown>)]
(gdb) bt
#0 0x0000000000000000 in ?? ()
#1 0x00000008013283ed in __dynamic_cast (src_ptr=0x8015d0480,
src_type=0x8015b5fd0,
dst_type=0x8015b5d60, src2dst=0)
at ../../.././../gcc-4.7.4/libstdc++-v3/libsupc++/dyncast.cc:61
#2 0x0000000801353f50 in std::has_facet<std::ctype<char> >
(__loc=@0x8015cffb8)
at locale_classes.tcc:257
#3 0x0000000801348e44 in std::basic_ios<char, std::char_traits<char>
>::_M_cache_locale (
this=0x8015cfee8, __loc=@0x8015cffb8) at basic_ios.tcc:160
#4 0x0000000801348ee8 in std::basic_ios<char, std::char_traits<char>
>::init (
this=0x8015cfee8, __sb=0x8015cf7c0) at basic_ios.tcc:133
#5 0x000000080133b241 in std::ios_base::Init::Init (this=Unhandled
dwarf expression opcode 0xf3
) at ostream:83
#6 0x000000000040466a in __static_initialization_and_destruction_0
(__initialize_p=Could not find the frame base for
"__static_initialization_and_destruction_0".
) at new:111
#7 0x000000000060a488 in ?? ()
#8 0x00007fffffffd7a0 in ?? ()
#9 0x0000000800827560 in ?? () from /libexec/ld-elf.so.1
#10 0x0000000000000000 in ?? ()
Myslim, ze ja uz se dal nedostanu
No,porad's to jeste nezkusil zkompilovat s -O optimalizacema. ;-)
To zkusim ted ;)
Ja uz bych davno ten prelozenej kod projel disassemblerem (a hledal
vyskyt "neexistujici instrukce"), ale nemam vubec vyrobeny builder-stroj
s 10-R v 32bit verzi. A pro 64 bitovej binar zas nemam disassembler.
Taky muzes zkusit ICC misto GCC:
CC= ${LOCALBASE}/intel_cc_80/bin/icc
CXX= ${LOCALBASE}/intel_cc_80/bin/icpc
To ale taky muze byt dost napinava zmena ;-)
A i na tohle asi dojde rada - urcite se jeste ozvu.
Prece tim, ze se na stejny kod pouzije jiny kompilator by se nemel
zmenit seznam runtime zavislosti, ne?
No, tak to samozrejme mel, u dynamicky linkovanejch binaru. Pri behu
potrebujes knihovny, ktere se budou prilinkovavat. V pripade objektoveho
prekladu pomoci gcc 4.8 to nejspis bude minimalne libstdc++.6.so. Coz
znamena zavislost na lang/gcc48
Nedoslo mi, ze si to pak udela zavislost na jine knihovne podle
kompilatoru. Tak jak jsi to popsal uz to samozrejme smysl dava. I kdyz i
tak mi prijde ten seznam zavislosti jako obludne velky balik (patrne
kvuli dvoum knihovnam)
No, a to ostatni jsou uz rekurzivni zavislosti samotneho gcc 4.8. A tech
je tam, pri defaultnim prekladu gcc, dost.
Dan
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