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On Fri, 2015-11-13 at 13:16 +0100, Peter Stuge wrote: |
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> Joakim Tjernlund wrote: |
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> > > cross toolchains cannot use ASAN today: |
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> > > powerpc-g2.20-linux-gnu-gcc -fsanitize=address mmap.c |
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> > > /usr/libexec/gcc/powerpc-g2.20-linux-gnu/ld: warning: libstdc++.so.6, needed by /usr/lib/gcc/powerpc- |
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> > > g2.20- |
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> > > linux-gnu/4.9.3/libasan.so, not found (try using -rpath or -rpath-link) |
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> > |
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> > hmm, there is a libstdc++.so.6 which will work to link with under: |
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> > /usr/lib64/gcc/powerpc-g2.20-linux-gnu/4.9.3/libstdc++.so.6 |
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> > But powerpc-g2.20-linux-gnu-gcc cannot find it there, stracing gcc |
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> > one can see: |
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> > |
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> > [pid 3860] open("/usr/powerpc-g2.20-linux-gnu/... |
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> |
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> Is /usr/powerpc-g2.20-linux-gnu the sysroot? |
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Yes |
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> If yes, why is libstdc++.so.6 not in there? |
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I think it is because cross-powerpc-g2.20-linux-gnu/glibc is special, it is not |
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the real/whole glibc, just the stuff needed x-compile. |
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But as there is and /usr/lib64/gcc/powerpc-g2.20-linux-gnu/4.9.3/libstdc++.so.6 gcc |
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shoudl look there? libasan.so.1 lives there also. |
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Speaking of libasan.so, it has an odd runpath: |
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0x0000001d (RUNPATH) Library runpath: [/usr/powerpc-g2.20-linux-gnu/lib/../lib] |
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My host has(amd64): |
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0x000000000000001d (RUNPATH) Library runpath: [/usr/lib/../lib64] |
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Jocke |
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> If no, why is gcc looking there? |
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> |
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> |
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> //Peter |
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> |
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