Re^2: Issue: Encode.so: undefined symbol: PL

Thanks.

I was hoping that libperl.so located in the standard library directory /usr/lib will get resolved by the link flag -lperl and hence make the symbol PL_utf8skip available.

ldd -v /usr/local/lib/perl/5.18.2/auto/Encode/Encode.so

Results:

	linux-vdso.so.1 =>  (0x00007ffcacdc7000)
	libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f7c44f87000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f7c45555000)

	Version information:
	/usr/local/lib/perl/5.18.2/auto/Encode/Encode.so:
		libc.so.6 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libc.so.6
	/lib/x86_64-linux-gnu/libc.so.6:
		ld-linux-x86-64.so.2 (GLIBC_2.3) => /lib64/ld-linux-x86-64.so.2
		ld-linux-x86-64.so.2 (GLIBC_PRIVATE) => /lib64/ld-linux-x86-64.so.2

Comment on Re^2: Issue: Encode.so: undefined symbol: PL_utf8skip

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Re^3: Issue: Encode.so: undefined symbol: PL_utf8skip by Anonymous Monk on Jul 24, 2015 at 22:53 UTC
Well, for whatever reason, Encode.so doesn't appear linked to libperl.so ... thats weird, do the other .so's link to libperl? Like pymechanize.o or whatever it is you're generating?	[reply]
Re^4: Issue: Encode.so: undefined symbol: PL_utf8skip by losintikfos (Novice) on Jul 24, 2015 at 23:35 UTC
So basically when I investigate my output dynamic library - this is what I get: ldd -v build/lib.linux-x86_64-3.4/pymechanize.cpython-34m.so linux-vdso.so.1 => (0x00007ffd157f3000) libperl.so.5.18 => /usr/lib/libperl.so.5.18 (0x00007f9632000000) libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f9631de2000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f9631a1d000) libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f9631819000) libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f9631513000) libcrypt.so.1 => /lib/x86_64-linux-gnu/libcrypt.so.1 (0x00007f96312da000) /lib64/ld-linux-x86-64.so.2 (0x00007f96325b0000) Version information: build/lib.linux-x86_64-3.4/pymechanize.cpython-34m.so: libpthread.so.0 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libpthread.so.0 libc.so.6 (GLIBC_2.3) => /lib/x86_64-linux-gnu/libc.so.6 libc.so.6 (GLIBC_2.14) => /lib/x86_64-linux-gnu/libc.so.6 libc.so.6 (GLIBC_2.4) => /lib/x86_64-linux-gnu/libc.so.6 libc.so.6 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libc.so.6 /usr/lib/libperl.so.5.18: libdl.so.2 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libdl.so.2 libcrypt.so.1 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libcrypt.so.1 libm.so.6 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libm.so.6 libpthread.so.0 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libpthread.so.0 libc.so.6 (GLIBC_2.11) => /lib/x86_64-linux-gnu/libc.so.6 libc.so.6 (GLIBC_2.14) => /lib/x86_64-linux-gnu/libc.so.6 libc.so.6 (GLIBC_2.4) => /lib/x86_64-linux-gnu/libc.so.6 libc.so.6 (GLIBC_2.3.4) => /lib/x86_64-linux-gnu/libc.so.6 libc.so.6 (GLIBC_2.3) => /lib/x86_64-linux-gnu/libc.so.6 libc.so.6 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libc.so.6 /lib/x86_64-linux-gnu/libpthread.so.0: ld-linux-x86-64.so.2 (GLIBC_2.2.5) => /lib64/ld-linux-x86-64.so.2 ld-linux-x86-64.so.2 (GLIBC_2.3) => /lib64/ld-linux-x86-64.so.2 ld-linux-x86-64.so.2 (GLIBC_PRIVATE) => /lib64/ld-linux-x86-64.so.2 libc.so.6 (GLIBC_2.14) => /lib/x86_64-linux-gnu/libc.so.6 libc.so.6 (GLIBC_2.3.2) => /lib/x86_64-linux-gnu/libc.so.6 libc.so.6 (GLIBC_PRIVATE) => /lib/x86_64-linux-gnu/libc.so.6 libc.so.6 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libc.so.6 /lib/x86_64-linux-gnu/libc.so.6: ld-linux-x86-64.so.2 (GLIBC_2.3) => /lib64/ld-linux-x86-64.so.2 ld-linux-x86-64.so.2 (GLIBC_PRIVATE) => /lib64/ld-linux-x86-64.so.2 /lib/x86_64-linux-gnu/libdl.so.2: ld-linux-x86-64.so.2 (GLIBC_PRIVATE) => /lib64/ld-linux-x86-64.so.2 libc.so.6 (GLIBC_PRIVATE) => /lib/x86_64-linux-gnu/libc.so.6 libc.so.6 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libc.so.6 /lib/x86_64-linux-gnu/libm.so.6: libc.so.6 (GLIBC_PRIVATE) => /lib/x86_64-linux-gnu/libc.so.6 libc.so.6 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libc.so.6 /lib/x86_64-linux-gnu/libcrypt.so.1: libc.so.6 (GLIBC_2.14) => /lib/x86_64-linux-gnu/libc.so.6 libc.so.6 (GLIBC_PRIVATE) => /lib/x86_64-linux-gnu/libc.so.6 libc.so.6 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libc.so.6 As you can see Encode.so link definition clearly shows a dependency to libperl.so and so is my library pymechanize.cpython-34m.so - but somehow my library do not seems to load and package libperl.so well during linkage - to make its required symbols available to dependable libraries such as encode. Strange one.	[reply]
Re^5: Issue: Encode.so: undefined symbol: PL_utf8skip by Anonymous Monk on Jul 25, 2015 at 00:01 UTC
As you can see Encode.so link definition clearly shows a dependency to libperl.so and so is my library pymechanize.cpython-34m.so - but somehow my library do not seems to load and package libperl.so well during linkage - to make its required symbols available to dependable libraries such as encode. Strange one. Yeah, its very odd that perl would run but then XSLoader would fail to find a symbol provided by libperl.so	[reply]