Hello guys,
Am having a problem linking against libstdc++. Linking against libstdc++
generates the following errors;
anchor:/anchor-toolchain/onward/packages/phase-two/gcc$ gcc t.c -lstdc++
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libssp.so:
warning: the 'gets' function is dangerous and should not be used.
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_Resume_or_Rethrow'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_RaiseException'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_GetLanguageSpecificData'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_Resume'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_DeleteException'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_GetTextRelBase'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_SetIP'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_GetDataRelBase'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_GetRegionStart'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_SetGR'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_GetIPInfo'
collect2: ld returned 1 exit status
--t.c------------------------------
#include <stdio.h>
int main()
{
printf("test\n");
return 0;
}
-------------------------------------
The _Unwind* functions are defined in libgcc_s. When I link against libgcc_s,
i get the following error;
$ gcc t.c -lstdc++ -lgcc_s
$ ./a.out
Can't modify /anchor-tools/lib/libstdc++.so.6's text section. Use GCC
option -fPIC for shared objects, please.
Can someone please tell me the cause of the above error and how to get rid of
it.
NB: am using gcc 4.2.4 and uClibc-0.9.30.1
Attached is the verbose out from running 'gcc -v t.c -Wl,--verbose'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libssp.so:
warning: the 'gets' function is dangerous and should not be used.
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_Resume_or_Rethrow'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_RaiseException'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_GetLanguageSpecificData'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_Resume'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_DeleteException'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_GetTextRelBase'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_SetIP'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_GetDataRelBase'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_GetRegionStart'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_SetGR'
/anchor-toolchain/anchor-tools/bin/../lib/gcc/i486-anchor-linux-uclibc/4.2.4/../../../libstdc++.so:
undefined reference to `_Unwind_GetIPInfo'
collect2: ld returned 1 exit status
--
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