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    <div class="moz-cite-prefix">Hi again,<br>

      <br>

      I was able now to build lttng-ust but I have still some problems

      with lttng-tools...<br>

      <br>

      My current story is ( Could be usefull for the next guy which want

      to try to compile the tool with a toolchain from Jurassic time) :<br>

      <br>

      * shm_open issue<br>

        -> patch for toolchain uClibc-0.9.30.1 :

      <meta http-equiv="content-type" content="text/html;

        charset=ISO-8859-1">

      <a

href="http://lists.uclibc.org/pipermail/uclibc/2009-February/041886.html">

http://lists.uclibc.org/pipermail/uclibc/2009-February/041886.html</a><br>

      <br>

      * epoll_create1 and EPOLLRDHUP issue<br>

        -> patch for toolchain uClibc-0.9.30.1 :

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        charset=ISO-8859-1">

      <a

href="http://uclibc.10924.n7.nabble.com/PATCH-Implement-epoll-create1-and-epoll-pwait-system-calls-td268.html">

http://uclibc.10924.n7.nabble.com/PATCH-Implement-epoll-create1-and-epoll-pwait-system-calls-td268.html</a><br>

      <br>

      * be32toh issue<br>

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        charset=ISO-8859-1">

        -> patch for toolchain uClibc-0.9.30.1 :

      <meta http-equiv="content-type" content="text/html;

        charset=ISO-8859-1">

      <a

        href="http://lists.uclibc.org/pipermail/uclibc/2010-June/044107.html">http://lists.uclibc.org/pipermail/uclibc/2010-June/044107.html</a><br>

      <br>

      * pthread-condattr issue<br>

         -> patch for toolchain uClibc-0.9.30.1 :

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        charset=ISO-8859-1">

      <a

        href="http://www.mail-archive.com/uclibc@uclibc.org/msg01909.html">http://www.mail-archive.com/uclibc@uclibc.org/msg01909.html</a><br>

      <br>

      My last issue : <br>

      <br>

      /openwrt/staging_dir/toolchain-mips_gcc-4.4.2_uClibc-0.9.30.1/lib/gcc/mips-openwrt-linux-uclibc/4.4.2/../../../../mips-openwrt-linux-uclibc/bin/ld:

      warning: liburcu-common.so.1, needed by

      /openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liburcu-bp.so,

      not found (try using -rpath or -rpath-link)<br>

      /openwrt/staging_dir/toolchain-mips_gcc-4.4.2_uClibc-0.9.30.1/lib/gcc/mips-openwrt-linux-uclibc/4.4.2/../../../../mips-openwrt-linux-uclibc/bin/ld:

      warning: liblttng-ust-tracepoint.so.0, needed by

      /openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liblttng-ust.so,

      not found (try using -rpath or -rpath-link)<br>

      /openwrt/staging_dir/toolchain-mips_gcc-4.4.2_uClibc-0.9.30.1/lib/gcc/mips-openwrt-linux-uclibc/4.4.2/../../../../mips-openwrt-linux-uclibc/bin/ld:

      warning: libuuid.so.1, needed by

      /openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liblttng-ust.so,

      not found (try using -rpath or -rpath-link)<br>

      /openwrt/staging_dir/toolchain-mips_gcc-4.4.2_uClibc-0.9.30.1/lib/gcc/mips-openwrt-linux-uclibc/4.4.2/../../../../mips-openwrt-linux-uclibc/bin/ld:

      warning: liburcu-cds.so.1, needed by

      /openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liblttng-ust.so,

      not found (try using -rpath or -rpath-link)<br>

      XXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liblttng-ust.so:

      undefined reference to `__tracepoint_probe_unregister'<br>

      XXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liblttng-ust.so:

      undefined reference to `_cds_lfht_new'<br>

      XXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liblttng-ust.so:

      undefined reference to `cds_lfht_lookup'<br>

      XXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liblttng-ust.so:

      undefined reference to `init_tracepoint'<br>

      XXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liblttng-ust.so:

      undefined reference to `cds_lfht_del'<br>

      XXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liblttng-ust.so:

      undefined reference to `uuid_generate'<br>

      XXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liblttng-ust.so:

      undefined reference to `exit_tracepoint'<br>

      XXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liblttng-ust.so:

      undefined reference to `cds_lfht_destroy'<br>

      XXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liblttng-ust.so:

      undefined reference to `cds_lfht_first'<br>

      XXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liblttng-ust.so:

      undefined reference to `cds_lfht_add_unique'<br>

      XXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liblttng-ust.so:

      undefined reference to `cds_lfht_next'<br>

      XXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib/liblttng-ust.so:

      undefined reference to `__tracepoint_probe_register'<br>

      <br>

      I found a bug here which seems related to my issue :

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        charset=ISO-8859-1">

      <a href="https://bugs.lttng.org/issues/321">https://bugs.lttng.org/issues/321</a><br>

      This bug talk about a fix in configure.ac :

      <meta http-equiv="content-type" content="text/html;

        charset=ISO-8859-1">

      <a

href="https://bugs.lttng.org/projects/lttng-ust/repository/revisions/faebb41808b9deda5ef5dfea0c035077407e7f9f/diff">https://bugs.lttng.org/projects/lttng-ust/repository/revisions/faebb41808b9deda5ef5dfea0c035077407e7f9f/diff</a><br>

      <br>

      Problem is that I seems to have already this fix in my lttng-ust

      version. I am not very confortable with autotools. Do I have to

      add a "libtool-linkdep-fixup" flag somewhere to be able to enable

      the fix during my compile process ?<br>

      <br>

      Thanks,<br>

      Arthur.<br>

      <br>

      <br>

      On 25/09/2013 18:17, Jérémie Galarneau wrote:<br>

    </div>

    <blockquote

cite="mid:CA+jJMxuPudXDiatZfWVwUvvHJ9_WJ4gg_4vUeFapKZet4G-UFw@mail.gmail.com"

      type="cite">

      <pre wrap="">On Wed, Sep 25, 2013 at 7:06 AM, Arthur LAMBERT

<a class="moz-txt-link-rfc2396E" href="mailto:arthur.lambert@sagemcom.com"><arthur.lambert@sagemcom.com></a> wrote:

</pre>

      <blockquote type="cite">

        <pre wrap="">Hi,

I am using backfire version of Openwrt and would like to try to use

profiling features bring by tools like lttng. I found some Makefile packages

on openwrt website to build lttng-tools and lttng-ust with recent version of

openwrt version but I am not able to compile lttng without error. with

mine..

Environment :

Openwrt Backfire

UCLIBC 0.9.31

Linux kernel 2.6.28

</pre>

      </blockquote>

      <pre wrap="">

Please note that kernel tracing is only available on kernels >= 2.6.38

(or 2.6.32 if patched appropriately).

I'm not an openwrt user, but it seems Makefiles are only provided for

LTTng 2.1.0. Can you confirm whether or not the build succeeds for

that version?

</pre>

      <blockquote type="cite">

        <pre wrap="">ARCH mips32

lttng version : 2.3.0

librcu version : 0.8

First problem was related to lttng-ust-2.3.0/libringbuffer/getcpu.h. I get

an undefined reference to c variable in lttng_ust_get_cpu function. After

some research I was not able to find a solution about this point even if I

seem to be up to date since I found some patch related to issue with old

version of uclibc than 0.9.32. This patch seems to be already integrated in

my lttng ust version. Anyway, I found a workaround to check that the next

step on the compilation is find... but it is not...

</pre>

      </blockquote>

      <pre wrap="">

Could you clarify what was the error and what is the workaround?

</pre>

      <blockquote type="cite">

        <pre wrap="">Compilation result :

make package/lttng-tools/compile V=99

make[1]: Entering directory

`XXXXXX/openwrt'

make[2]: Entering directory

`XXXXXX/openwrt/feeds/tools/libs/liburcu'

make[2]: Leaving directory

`XXXXXX/openwrt/feeds/tools/libs/liburcu'

make[2]: Entering directory

`XXXXXX/openwrt/package/e2fsprogs'

WARNING: skipping e2fsprogs -- package not selected

WARNING: skipping uuidgen -- package not selected

WARNING: skipping libext2fs -- package not selected

WARNING: skipping tune2fs -- package not selected

WARNING: skipping resize2fs -- package not selected

WARNING: skipping badblocks -- package not selected

WARNING: skipping blkid -- package not selected

make[2]: Leaving directory

`XXXXXX/openwrt/package/e2fsprogs'

make[2]: Entering directory

`XXXXXX/openwrt/feeds/tools/devel/lttng-ust'

CFLAGS="-Os -pipe -mabi=32 -mtune=mips32 -fno-strict-aliasing -g3

-fhonour-copts -msoft-float

-IXXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/include

-IXXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/include

-IXXXXXX/openwrt/staging_dir/toolchain-mips_gcc-4.4.2_uClibc-0.9.30.1/usr/include

-IXXXXXX/openwrt/staging_dir/toolchain-mips_gcc-4.4.2_uClibc-0.9.30.1/include

" CXXFLAGS="-Os -pipe -mabi=32 -mtune=mips32 -fno-strict-aliasing -g3

-fhonour-copts -msoft-float

-IXXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/include

-IXXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/include

-IXXXXXX/openwrt/staging_dir/toolchain-mips_gcc-4.4.2_uClibc-0.9.30.1/usr/include

-IXXXXXX/openwrt/staging_dir/toolchain-mips_gcc-4.4.2_uClibc-0.9.30.1/include

"

LDFLAGS="-LXXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/usr/lib

-LXXXXXX/openwrt/staging_dir/target-mips_uClibc-0.9.30.1/lib

-LXXXXXX/openwrt/staging_dir/toolchain-mips_gcc-4.4.2_uClibc-0.9.30.1/usr/lib

-LXXXXXX/openwrt/staging_dir/toolchain-mips_gcc-4.4.2_uClibc-0.9.30.1/lib

" make  -j2 -C

XXXXXX/openwrt/build_dir/target-mips_uClibc-0.9.30.1/lttng-ust-2.3.0/.

AR=mips-openwrt-linux-uclibc-ar AS="mips-openwrt-linux-uclibc-gcc -c -Os

-pipe -mabi=32 -mtune=mips32 -fno-strict-aliasing -g3 -fhonour-copts

-msoft-float" LD=mips-openwrt-linux-uclibc-ld

NM=mips-openwrt-linux-uclibc-nm CC="mips-openwrt-linux-uclibc-gcc"

GCC="mips-openwrt-linux-uclibc-gcc" CXX="mips-openwrt-linux-uclibc-g++"

RANLIB=mips-openwrt-linux-uclibc-ranlib

STRIP=mips-openwrt-linux-uclibc-strip

OBJCOPY=mips-openwrt-linux-uclibc-objcopy

OBJDUMP=mips-openwrt-linux-uclibc-objdump

SIZE=mips-openwrt-linux-uclibc-size CROSS="mips-openwrt-linux-uclibc-"

ARCH="mips" ;

make[3]: Entering directory

`XXXXXX/openwrt/build_dir/target-mips_uClibc-0.9.30.1/lttng-ust-2.3.0'

make  all-recursive

make[4]: Entering directory

`XXXXXX/openwrt/build_dir/target-mips_uClibc-0.9.30.1/lttng-ust-2.3.0'

Making all in .

make[5]: Entering directory

`XXXXXX/openwrt/build_dir/target-mips_uClibc-0.9.30.1/lttng-ust-2.3.0'

make[5]: Nothing to be done for `all-am'.

make[5]: Leaving directory

`XXXXXX/openwrt/build_dir/target-mips_uClibc-0.9.30.1/lttng-ust-2.3.0'

Making all in include

make[5]: Entering directory

`XXXXXX/openwrt/build_dir/target-mips_uClibc-0.9.30.1/lttng-ust-2.3.0/include'