[1/1] lttng-libust: Disable liblttng-ust-dl with uClibc.

According to uClibc commit [1], dlinfo is not available.
To be able to use LTTng UST with uClibc, we need to disable
the Dynamic Linker Tracing functionality [2].

Fixes:
http://autobuild.buildroot.net/results/a6c/a6c33dd7ec2a36a50c5ea74b989a371d6c85e899/build-end.log

[1] http://git.uclibc.org/uClibc/commit/?id=f3c9dc499c5c787ddd8c4320f2d44d2ae6e40c22
[2] http://lists.lttng.org/pipermail/lttng-dev/2014-February/022423.html

Signed-off-by: Romain Naour <romain.naour@openwide.fr>
---
 ...iblttng-ust-dl-if-dlinfo-is-not-available.patch | 52 ++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 package/lttng-libust/lttng-libust-0001-Disable-liblttng-ust-dl-if-dlinfo-is-not-available.patch

Romain, All,

On 2014-03-30 14:18 +0200, Romain Naour spake thusly:
> According to uClibc commit [1], dlinfo is not available.
> To be able to use LTTng UST with uClibc, we need to disable
> the Dynamic Linker Tracing functionality [2].
> 
> Fixes:
> http://autobuild.buildroot.net/results/a6c/a6c33dd7ec2a36a50c5ea74b989a371d6c85e899/build-end.log
> 
> [1] http://git.uclibc.org/uClibc/commit/?id=f3c9dc499c5c787ddd8c4320f2d44d2ae6e40c22
> [2] http://lists.lttng.org/pipermail/lttng-dev/2014-February/022423.html
> 
> Signed-off-by: Romain Naour <romain.naour@openwide.fr>

Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

> ---
>  ...iblttng-ust-dl-if-dlinfo-is-not-available.patch | 52 ++++++++++++++++++++++
>  1 file changed, 52 insertions(+)
>  create mode 100644 package/lttng-libust/lttng-libust-0001-Disable-liblttng-ust-dl-if-dlinfo-is-not-available.patch
> 
> diff --git a/package/lttng-libust/lttng-libust-0001-Disable-liblttng-ust-dl-if-dlinfo-is-not-available.patch b/package/lttng-libust/lttng-libust-0001-Disable-liblttng-ust-dl-if-dlinfo-is-not-available.patch
> new file mode 100644
> index 0000000..7849840
> --- /dev/null
> +++ b/package/lttng-libust/lttng-libust-0001-Disable-liblttng-ust-dl-if-dlinfo-is-not-available.patch
> @@ -0,0 +1,52 @@
> +Disable liblttng-ust-dl if dlinfo is not available in C library.
> +
> +According to uClibc commit [1], dlinfo is not available.
> +To be able to use LTTng UST with uClibc, we need to disable
> +the Dynamic Linker Tracing functionality [2].
> +
> +[1] http://git.uclibc.org/uClibc/commit/?id=f3c9dc499c5c787ddd8c4320f2d44d2ae6e40c22
> +[2] http://lists.lttng.org/pipermail/lttng-dev/2014-February/022423.html
> +
> +Signed-off-by: Romain Naour <romain.naour@openwide.fr>

Did you try to push this upstream?

Regards,
Yann E. MORIN.

> +---
> + Makefile.am  | 5 ++++-
> + configure.ac | 3 +++
> + 2 files changed, 7 insertions(+), 1 deletion(-)
> +
> +diff --git a/Makefile.am b/Makefile.am
> +index b79d2dd..c907ff1 100644
> +--- a/Makefile.am
> ++++ b/Makefile.am
> +@@ -4,11 +4,14 @@ SUBDIRS = . include snprintf libringbuffer liblttng-ust-comm \
> + 		liblttng-ust \
> + 		liblttng-ust-ctl \
> + 		liblttng-ust-fork \
> +-		liblttng-ust-dl \
> + 		liblttng-ust-libc-wrapper \
> + 		liblttng-ust-cyg-profile \
> + 		tools
> + 
> ++if HAVE_DLINFO
> ++SUBDIRS += liblttng-ust-dl
> ++endif
> ++
> + if BUILD_JNI_INTERFACE
> + SUBDIRS += liblttng-ust-java liblttng-ust-jul
> + endif
> +diff --git a/configure.ac b/configure.ac
> +index f507883..5dcf0e2 100644
> +--- a/configure.ac
> ++++ b/configure.ac
> +@@ -145,6 +145,9 @@ AC_C_INLINE
> + AC_FUNC_MALLOC
> + AC_CHECK_FUNCS([gettimeofday munmap socket strerror strtol sched_getcpu sysconf])
> + 
> ++AC_CHECK_FUNCS([dlinfo])
> ++AM_CONDITIONAL([HAVE_DLINFO], [test "${ac_cv_func_dlinfo}" = "yes"])
> ++
> + CFLAGS="-Wall $CFLAGS"
> + 
> + # URCU
> +-- 
> +1.9.0
> +
> -- 
> 1.9.0
> 
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Dear Romain Naour,

On Sun, 30 Mar 2014 14:18:50 +0200, Romain Naour wrote:
> According to uClibc commit [1], dlinfo is not available.
> To be able to use LTTng UST with uClibc, we need to disable
> the Dynamic Linker Tracing functionality [2].
> 
> Fixes:
> http://autobuild.buildroot.net/results/a6c/a6c33dd7ec2a36a50c5ea74b989a371d6c85e899/build-end.log
> 
> [1] http://git.uclibc.org/uClibc/commit/?id=f3c9dc499c5c787ddd8c4320f2d44d2ae6e40c22
> [2] http://lists.lttng.org/pipermail/lttng-dev/2014-February/022423.html
> 
> Signed-off-by: Romain Naour <romain.naour@openwide.fr>
> ---
>  ...iblttng-ust-dl-if-dlinfo-is-not-available.patch | 52 ++++++++++++++++++++++
>  1 file changed, 52 insertions(+)
>  create mode 100644 package/lttng-libust/lttng-libust-0001-Disable-liblttng-ust-dl-if-dlinfo-is-not-available.patch

Applied, thanks.

Thomas