From: Christian Melki <christian.melki@t2data.com>
To: ptxdist@pengutronix.de
Subject: [ptxdist] pkg-config-wrapper libdir confusion, ABI dynamic-linker path.
Date: Thu, 22 Apr 2021 21:59:06 +0200 [thread overview]
Message-ID: <30a9fa38-3276-c5dc-c36b-51f02483ed0f@t2data.com> (raw)
I'm using a crosstool-ng toolchain which adheres to the ld.so ABI path
for x86_64 (glibc).
Afaiu, ptxdist does not like multilib.
But it will happily get the dynamic-linker path which contain a multilib
description or just a regular lib64 path.
https://git.pengutronix.de/cgit/ptxdist/tree/scripts/lib/ptxd_make_00-init.sh#n169
This might be a symbolic link to the real dynamic linker, because a
demultilibbed toolchain must still adhere to the ABI specifications.
For x86_64: 64-bit, hard-float, LE: /lib64/ld-linux-x86-64.so.2
So ptxdist will use lib64 as it's base for libdirs placing various
libraries in a lib64 path.
But when using the pkg-config-wrapper it looks like all libraries are
only statically set from a something /lib path.
https://git.pengutronix.de/cgit/ptxdist/tree/scripts/pkg-config-wrapper#n19
So building a library yields:
$ ls -la platform-tracker/sysroot-target/usr/lib64/libmnl.so*
lrwxrwxrwx 2 xxx users 15 Apr 22 21:01
platform-tracker/sysroot-target/usr/lib64/libmnl.so -> libmnl.so.0.2.0*
lrwxrwxrwx 2 xxx users 15 Apr 22 21:01
platform-tracker/sysroot-target/usr/lib64/libmnl.so.0 -> libmnl.so.0.2.0*
-rwxr-xr-x 2 xxx users 77216 Apr 22 21:01
platform-tracker/sysroot-target/usr/lib64/libmnl.so.0.2.0*
$ ls -la platform-tracker/sysroot-target/usr/lib64/pkgconfig/libmnl.pc
-rw-r--r-- 2 xxx users 318 Apr 22 21:01
platform-tracker/sysroot-target/usr/lib64/pkgconfig/libmnl.pc
In the search for the library:
PKG_CONFIG_DEBUG_SPEW variable enabling debug spew
Adding directory
'/home/xxx/work/tracker/bin/platform-tracker/sysroot-target/usr/lib/pkgconfig'
from PKG_CONFIG_PATH
Adding directory
'/home/xxx/work/tracker/bin/platform-tracker/sysroot-target/usr/share/pkgconfig'
from PKG_CONFIG_PATH
Global variable definition 'pc_sysrootdir' = '/'
Global variable definition 'pc_top_builddir' = '$(top_builddir)'
Error printing enabled by default due to use of output options besides
--exists, --atleast/exact/max-version or --list-all. Value of
--silence-errors: 0
Error printing enabled
Adding virtual 'pkg-config' package to list of known packages
Looking for package 'libmnl'
Looking for package 'libmnl-uninstalled'
No package 'libmnl' found
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next reply other threads:[~2021-04-22 19:59 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-22 19:59 Christian Melki [this message]
2021-04-23 7:39 ` Michael Olbrich
2021-04-23 8:17 ` Christian Melki
2021-04-24 17:02 ` Christian Melki
2021-04-25 7:18 ` Michael Olbrich
2021-05-03 13:43 ` Christian Melki
2021-05-07 7:15 ` [ptxdist] [PATCH] pkg-config-wrapper: calculate the system paths dynamically as well Michael Olbrich
2021-05-07 11:14 ` Christian Melki
2021-05-07 12:14 ` Michael Olbrich
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