Hi all,
I try to figure out how to compile the code below as 64bit executable:
-- foo.cpp --
int main () {
return 0;
}
--
The code compiles:
$> g++ -m64 -O2 -g foo.cpp
and:
$> file a.out
a.out: ELF 64-bit MSB executable SPARCV9 Version 1, dynamically
linked, not stripped
tells me that I got what I asked for, but:
$> ldd a.out
libstdc++.so.6 => /usr/local/lib/libstdc++.so.6 - wrong ELF
class: ELFCLASS32
libm.so.1 => /usr/lib/64/libm.so.1
libgcc_s.so.1 => /usr/local/lib/libgcc_s.so.1 - wrong ELF
class: ELFCLASS32
libc.so.1 => /usr/lib/64/libc.so.1
libdl.so.1 => /usr/lib/64/libdl.so.1
/usr/platform/SUNW,Sun-Blade-1000/lib/sparcv9/libc_psr.so.1
As you can see, the linker (sun ld) seems to include the 32bit versions of
libstd++ and libgcc_s, instead of their 64bit companions - which are located
in '/usr/local/lib/sparcv9/'.
Verbose output (see below) shows that
-L/usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/../../../sparcv9
actually _is_ included in the library search path.
What's wrong here? Do I miss something? Compiler flags? Linker flags? A bug in
g++/collect2? Something completely different?
Thanks in advance for any hints :)
Daniel Franke
$> g++ -v -m64 -O2 -g foo.cpp
Reading specs from /usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/specs
Configured with: ../configure --with-as=/usr/ccs/bin/as
--with-ld=/usr/ccs/bin/ld --disable-nls
Thread model: posix
gcc version 3.4.1
/usr/local/libexec/gcc/sparc-sun-solaris2.8/3.4.1/cc1plus -quiet -v
-D__arch64__ -D__sparcv9 foo.cpp -mptr64 -mstack-bias -mno-v8plus -quiet
-dumpbase foo.cpp -m64 -mcpu=v7 -auxbase foo -g -O2 -version
-o /var/tmp//ccKbcjqe.s
ignoring nonexistent directory "NONE/include"
ignoring nonexistent directory
"/usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/../../../../sparc-sun-solaris2.8/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/../../../../include/c++/3.4.1
/usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/../../../../include/c++/3.4.1/sparc-sun-solaris2.8
/usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/../../../../include/c++/3.4.1/backward
/usr/local/include
/usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/include
/usr/include
End of search list.
GNU C++ version 3.4.1 (sparc-sun-solaris2.8)
compiled by GNU C version 3.4.1.
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
/usr/ccs/bin/as -V -Qy -s -xarch=v9
-o /var/tmp//ccK2DZnn.o /var/tmp//ccKbcjqe.s
/usr/ccs/bin/as: Sun WorkShop 6 99/08/18
/usr/local/libexec/gcc/sparc-sun-solaris2.8/3.4.1/collect2 -V -Y
P,/usr/lib/sparcv9
-Qy /usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/sparcv9/crt1.o /usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/sparcv9/crti.o /usr/ccs/lib/sparcv9/values-Xa.o /usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/sparcv9/crtbegin.o
-L/usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/sparcv9
-L/usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1 -L/usr/ccs/bin/sparcv9
-L/usr/ccs/bin -L/usr/ccs/lib/sparcv9 -L/usr/ccs/lib
-L/usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/../../../sparcv9
-L/usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/../../.. -L/lib/sparcv9
-L/usr/lib/sparcv9 /var/tmp//ccK2DZnn.o -lstdc++ -lm -lgcc_s_sparcv9 -lgcc
-lc -lgcc_s_sparcv9 -lgcc
-lc /usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/sparcv9/crtend.o /usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/sparcv9/crtn.o
ld: Software Generation Utilities - Solaris Link Editors: 5.8-1.284
$> g++ -v
reading specs from /usr/local/lib/gcc/sparc-sun-solaris2.8/3.4.1/specs
Configured with: ../configure --with-as=/usr/ccs/bin/as
--with-ld=/usr/ccs/bin/ld --disable-nls
Thread model: posix
gcc version 3.4.1
$> g++ -print-multi-lib
.;
sparcv9;@m64
--
Dipl.-Math. (FH) Daniel Franke
Institut fuer Medizinische Biometrie und Statistik
Medizinische Universität zu Luebeck
Ratzeburger Allee 160, Haus 4
23538 Luebeck
Telefon: 0451-500-2786
Telefax: 0451-500-2999
daniel.franke@xxxxxxxxxxxxxxxxxxx
