[Buildroot] [PATCH v3 8/9] lttng-babeltrace: add debug info support

[Yann E. MORIN]

Philippe, All,

On 2016-10-31 03:46 -0400, Philippe Proulx spake thusly:
> Since Babeltrace 1.4, there is support for printing debug information
> along with compatible traces and event records. Babeltrace needs
> elfutils in this case. If elfutils can be built with the current
> configuration, the lttng-babeltrace package selects it and builds
> with support for debug information. Otherwise the menuconfig shows
> a comment which explains why debug information support cannot be
> built.
> 
> Signed-off-by: Philippe Proulx <eeppeliteloop at gmail.com>

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

But then you do not enable debug info for the host variant. That's
because elfutils does not have a host variant. I'll send a patch
shortly.

Regards,
Yann E. MORIN.

> ---
> This is a new patch in v3.
> 
>  package/lttng-babeltrace/Config.in           | 17 +++++++++++++++++
>  package/lttng-babeltrace/lttng-babeltrace.mk |  7 +++++++
>  2 files changed, 24 insertions(+)
> 
> diff --git a/package/lttng-babeltrace/Config.in b/package/lttng-babeltrace/Config.in
> index 95b635d..55e2143 100644
> --- a/package/lttng-babeltrace/Config.in
> +++ b/package/lttng-babeltrace/Config.in
> @@ -27,6 +27,23 @@ config BR2_PACKAGE_LTTNG_BABELTRACE
> 
>  	  http://diamon.org/babeltrace
> 
> +if BR2_PACKAGE_LTTNG_BABELTRACE
> +
> +config BR2_PACKAGE_LTTNG_BABELTRACE_DEBUG_INFO
> +	bool
> +	default y
> +	depends on !BR2_bfin # elfutils
> +	depends on !BR2_STATIC_LIBS # elfutils
> +	depends on BR2_TOOLCHAIN_USES_UCLIBC || BR2_TOOLCHAIN_USES_GLIBC # elfutils
> +	select BR2_PACKAGE_ELFUTILS
> +
> +comment "handling debug info in traces needs a glibc or uClibc toolchain w/ dynamic library"
> +	depends on !BR2_bfin # elfutils
> +	depends on BR2_STATIC_LIBS \
> +		|| !(BR2_TOOLCHAIN_USES_UCLIBC || BR2_TOOLCHAIN_USES_GLIBC)
> +
> +endif
> +
>  comment "lttng-babeltrace needs a toolchain w/ wchar, threads"
>  	depends on BR2_USE_MMU
>  	depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS
> diff --git a/package/lttng-babeltrace/lttng-babeltrace.mk b/package/lttng-babeltrace/lttng-babeltrace.mk
> index 30c5f6e..260a8ee 100644
> --- a/package/lttng-babeltrace/lttng-babeltrace.mk
> +++ b/package/lttng-babeltrace/lttng-babeltrace.mk
> @@ -18,5 +18,12 @@ HOST_LTTNG_BABELTRACE_CONF_OPTS += --disable-debug-info
>  # For 0001-configure.ac-remove-elfutils-version-test-for-Buildr.patch
>  LTTNG_BABELTRACE_AUTORECONF = YES
> 
> +ifeq ($(BR2_PACKAGE_LTTNG_BABELTRACE_DEBUG_INFO),y)
> +LTTNG_BABELTRACE_DEPENDENCIES += elfutils
> +LTTNG_BABELTRACE_CONF_OPTS += --enable-debug-info
> +else
> +LTTNG_BABELTRACE_CONF_OPTS += --disable-debug-info
> +endif
> +
>  $(eval $(autotools-package))
>  $(eval $(host-autotools-package))
> --
> 2.9.3
> 
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