When compiling 'ppl' using the Trunk I'm getting a terse message
about "undefined reference to `typeinfo for int'". This is not
particularly useful since the words are common (can't grep for
them) and there is no line number info explaining the location of
the code that causes this issue.
This page may suggest a reason this error occurs:
http://stackoverflow.com/questions/307352/g-undefined-reference-to-typeinfo
I'm calling this an RFE since I desire an increase in verbosity
but there are no doubt arguments favoring this being a Bug.
# gcc -v
Using built-in specs.
Target: i386-pc-solaris2.11
Configured with: ../gcc_trunk/configure --prefix=/usr/local/gcc4
--enable-languages=ada,c,c++,fortran,java,objc,obj-c++ --enable-shared
--disable-static --enable-multilib --enable-decimal-float
--with-long-double-128 --with-included-gettext --disable-stage1-
checking
--enable-checking=release --with-tune=k8 --with-cpu=k8 --with-arch=k8
--with-gnu-as --with-as=/usr/local/bin/as --with-gnu-ld
--with-ld=/usr/local/bin/ld --with-gmp=/usr/local --with-mpfr=/usr/
local
--without-ppl
Thread model: posix
gcc version 4.4.0 20090309 (experimental) [trunk revision 144720]
(GCC)
# gmake
...
gmake[4]: Entering directory `/usr/share/src/ppl-build/demos/
ppl_lpsol'
gcc -DHAVE_CONFIG_H -I. -I../../../ppl/demos/ppl_lpsol -I../..
-I../../interfaces/C -I/usr/local/include -pedantic -std=gnu89 -
Werror -g -O3
-fomit-frame-pointer -march=k8 -frounding-math -W -Wall -MT
ppl_lpsol.o -MD
-MP -MF .deps/ppl_lpsol.Tpo -c -o ppl_lpsol.o
../../../ppl/demos/ppl_lpsol/ppl_lpsol.c
mv -f .deps/ppl_lpsol.Tpo .deps/ppl_lpsol.Po
/bin/sh ../../libtool --tag=CXX --mode=link g++ -g -O3 -fomit-
frame-pointer
-march=k8 -frounding-math -W -Wall -o ppl_lpsol ppl_lpsol.o
dummy.o -lglpk
../../interfaces/C/libppl_c.la -lm -L/usr/local/lib -lgmpxx -L/usr/
local/lib
-lgmp -R/usr/local/lib -R/usr/local/lib
libtool: link: g++ -g -O3 -fomit-frame-pointer -march=k8 -frounding-
math -W
-Wall -o .libs/ppl_lpsol ppl_lpsol.o dummy.o /usr/local/lib/
libglpk.so -lz
../../interfaces/C/.libs/libppl_c.so -L/usr/local/lib
/usr/share/src/ppl-build/src/.libs/libppl.so /usr/local/lib/libstdc+
+.so
/usr/local/lib/libgmpxx.so /usr/local/gcc4/lib/libstdc++.so -lm
/usr/local/lib/libgmp.so -Wl,-rpath -Wl,/usr/local/lib -Wl,-rpath
-Wl,/usr/local/gcc4/lib
../../interfaces/C/.libs/libppl_c.so: undefined reference to
`typeinfo for int'
collect2: ld returned 1 exit status
gmake[4]: *** [ppl_lpsol] Error 1
gmake[4]: Leaving directory `/usr/share/src/ppl-build/demos/ppl_lpsol'
If I run that using "-v" I get this collect command:
/usr/local/gcc4/libexec/gcc/i386-pc-solaris2.11/4.4.0/collect2 -V -m
elf_i386
-Y P,/usr/ccs/lib:/usr/lib -Qy -o .libs/ppl_lpsol /usr/lib/crt1.o
/usr/lib/crti.o /usr/lib/values-Xa.o
/usr/local/gcc4/lib/gcc/i386-pc-solaris2.11/4.4.0/crtbegin.o -L/usr/
local/lib
-L/usr/local/gcc4/lib/gcc/i386-pc-solaris2.11/4.4.0
-L/usr/local/gcc4/lib/gcc/i386-pc-solaris2.11/4.4.0/../../..
ppl_lpsol.o
dummy.o --verbose /usr/local/lib/libglpk.so -lz
../../interfaces/C/.libs/libppl_c.so
/usr/share/src/ppl-build/src/.libs/libppl.so /usr/local/lib/libstdc+
+.so
/usr/local/lib/libgmpxx.so /usr/local/gcc4/lib/libstdc++.so
/usr/local/lib/libgmp.so -rpath /usr/local/lib -rpath /usr/local/
gcc4/lib
-lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc
/usr/local/gcc4/lib/gcc/i386-pc-solaris2.11/4.4.0/crtend.o /usr/lib/
crtn.o
If I run that then I get this simple and useless output:
../../interfaces/C/.libs/libppl_c.so: undefined reference to
`typeinfo for int'
collect2: ld returned 1 exit status
If I run that exact same command but make a simple alteration:
- ... -lz ../../interfaces/C/.libs/libppl_c.so
+ ... -lz ../../interfaces/C/.libs/*.o
I can use the Object files that were used to create the Shared Library
instead of using the Shared Library. This is useful (due to this
Bug or needed RFE) since the error messages printed are by _far_ more
useful, see:
# /usr/local/gcc4/libexec/gcc/i386-pc-solaris2.11/4.4.0/collect2 -V -
m elf_i386
-Y P,/usr/ccs/lib:/usr/lib -Qy -o .libs/ppl_lpsol /usr/lib/crt1.o
/usr/lib/crti.o /usr/lib/values-Xa.o
/usr/local/gcc4/lib/gcc/i386-pc-solaris2.11/4.4.0/crtbegin.o -L/usr/
local/lib
-L/usr/local/gcc4/lib/gcc/i386-pc-solaris2.11/4.4.0
-L/usr/local/gcc4/lib/gcc/i386-pc-solaris2.11/4.4.0/../../..
ppl_lpsol.o
dummy.o /usr/local/lib/libglpk.so -lz ../../interfaces/C/.libs/*.o
/usr/share/src/ppl-build/src/.libs/libppl.so /usr/local/lib/libstdc+
+.so
/usr/local/lib/libgmpxx.so /usr/local/gcc4/lib/libstdc++.so
/usr/local/lib/libgmp.so -rpath /usr/local/lib -rpath /usr/local/
gcc4/lib
-lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc
/usr/local/gcc4/lib/gcc/i386-pc-solaris2.11/4.4.0/crtend.o /usr/lib/
crtn.o
GNU ld (GNU Binutils) 2.19.1
Supported emulations:
elf_i386_ldso
elf_i386
elf_x86_64
../../interfaces/C/.libs/ppl_c__BD_Shape_mpq_class.o: In function
`sgn<Parma_Polyhedra_Library::Checked_Number<__gmp_expr<__mpz_struct
[1],
__mpz_struct [1]>, Parma_Polyhedra_Library::Extended_Number_Policy>
>':
/usr/share/src/ppl-build/interfaces/C/../../src/ppl.hh:11187:
undefined
reference to `typeinfo for int'
../../interfaces/C/.libs/ppl_c__BD_Shape_mpq_class.o: In function
`sgn<Parma_Polyhedra_Library::Checked_Number<__gmp_expr<__mpq_struct
[1],
__mpq_struct [1]>,
Parma_Polyhedra_Library::WRD_Extended_Number_Policy> >':
/usr/share/src/ppl-build/interfaces/C/../../src/ppl.hh:11187:
undefined
reference to `typeinfo for int'
../../interfaces/C/.libs/ppl_c__BD_Shape_mpq_class.o: In function
`sgn<Parma_Polyhedra_Library::Checked_Number<__gmp_expr<__mpz_struct
[1],
__mpz_struct [1]>,
Parma_Polyhedra_Library::WRD_Extended_Number_Policy> >':
/usr/share/src/ppl-build/interfaces/C/../../src/ppl.hh:11187:
undefined
reference to `typeinfo for int'
../../interfaces/C/.libs/ppl_c__BD_Shape_mpq_class.o: In function
`sgn<Parma_Polyhedra_Library::Checked_Number<__gmp_expr<__mpq_struct
[1],
__mpq_struct [1]>, Parma_Polyhedra_Library::Extended_Number_Policy>
>':
/usr/share/src/ppl-build/interfaces/C/../../src/ppl.hh:11187:
undefined
reference to `typeinfo for int'
/usr/share/src/ppl-build/interfaces/C/../../src/ppl.hh:11187:
undefined
reference to `typeinfo for int'
../../interfaces/C/.libs/ppl_c__BD_Shape_mpq_class.o:/usr/share/src/
ppl-build/interfaces/C/../../src/ppl.hh:11187:
more undefined references to `typeinfo for int' follow
collect2: ld returned 1 exit status
See how gcc now gives line numbers that show exactly were the
undefined
references may be located instead of just complaining that there are
some,
somewhere.
Rob
--
Summary: The Driver hides "undefined reference" messages
from
shared libs (but not object files) in linker phase
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: enhancement
Priority: P3
Component: driver
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rob1weld at aol dot com
GCC build triplet: *
GCC host triplet: *
GCC target triplet: *
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39439