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Mike Frysinger <vapier@g.o> wrote on 2011/11/10 04:55:58: |
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> From: Mike Frysinger <vapier@g.o> |
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> On Wednesday 09 November 2011 10:37:18 Joakim Tjernlund wrote: |
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> > Tried to build oprofile |
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> > ./configure --host powerpc-softfloat-linux-gnu |
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> > LDFLAGS="-L/usr/lib/binutils/powerpc-softfloat-linux-gnu |
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> > -L/usr/local/src/FS/fsall/basicfs/usr/lib" |
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> > CPPFLAGS=-I/usr/lib/binutils/powerpc-softfloat-linux-gnu/include |
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> > |
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> > configure: error: liberty library not found |
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> > |
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> > this appears to be caused by crossdevs libiberty.a beeing built with the |
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> > hosts arch instead of powerpc: nm |
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> > /usr/i686-pc-linux-gnu/powerpc-softfloat-linux-gnu/lib/libiberty.a | grep |
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> > __i686 00000000 T __i686.get_pc_thunk.bx |
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> > 00000000 T __i686.get_pc_thunk.bx |
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> > .... |
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> > |
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> > Bug in crossdev, oprofile or user error? |
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> |
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> user error. this is expected behavior: the libs under |
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> /usr/$CHOST/$CTARGET/lib/ are libraries that will be linked for $CHOST |
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> binaries but used to debug $CTARGET code. libiberty is a bad example as it |
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> generally doesn't have any target info in it, so let's use libbfd.a as an |
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> example instead. |
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> |
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> linking against /usr/$CHOST/$CTARGET/lib/libbfd.a will let you run code on |
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> $CHOST but load ELFs that are compiled for $CTARGET. |
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> |
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> if you want to build oprofile for $CTARGET, you need to build binutils for |
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> $CTARGET (CHOST==CTARGET). |
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> -mike |
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|
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Ahh, too long time since I mucked around with sysroot. I installed binutils and now I got |
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a the correct libbfd.so and libiberty.a under |
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/usr/powerpc-softfloat-linux-gnu/usr/lib/binutils/powerpc-softfloat-linux-gnu/2.16.1/ |
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There is no symlink under |
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/usr/powerpc-softfloat-linux-gnu/lib/ |
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though which forces me to pass -L and -I options too gcc in order to |
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build oprofile. Would be nice if the symlinks were created to make the |
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x-compile env. mimic the normal host env. |
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|
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Same for libbfd and headers for those 2 libs. |
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|
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Jocke |