[Buildroot] [PATCH 4/4] package/lttng-tools: fix static build

[Yann E. MORIN <yann.morin.1998@free.fr>]

Samuel, All,

On 2015-12-02 22:48 +0100, Samuel Martin spake thusly:
> Some unit tests depend on objects from src/common/.
> This patch makes sure to points to the location of the non-PIC object files.
> Otherwise, in case of static only build, the PIC object are not built, so
> the link will fail.
> 
> Signed-off-by: Samuel Martin <s.martin49@gmail.com>

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

This patch has now been accepted upstream:

    https://git.lttng.org/?p=lttng-tools.git;a=commit;h=3622d7c3931685fab8d1b2e5585a369b78cefd12

Regards,
Yann E. MORIN.

> ---
>  ...0003-tests-unit-fix-object-files-location.patch | 90 ++++++++++++++++++++++
>  1 file changed, 90 insertions(+)
>  create mode 100644 package/lttng-tools/0003-tests-unit-fix-object-files-location.patch
> 
> diff --git a/package/lttng-tools/0003-tests-unit-fix-object-files-location.patch b/package/lttng-tools/0003-tests-unit-fix-object-files-location.patch
> new file mode 100644
> index 0000000..3233a1b
> --- /dev/null
> +++ b/package/lttng-tools/0003-tests-unit-fix-object-files-location.patch
> @@ -0,0 +1,90 @@
> +Upstream status: submitted
> +Fetched from: https://lists.lttng.org/pipermail/lttng-dev/2015-December/025331.html
> +From 15b43f3b61adecb62ed6b297fa709313ada7bf89 Mon Sep 17 00:00:00 2001
> +From: Samuel Martin <s.martin49@gmail.com>
> +Date: Mon, 23 Nov 2015 00:11:36 +0100
> +Subject: [PATCH] tests/unit: fix object files' location
> +
> +Referring to *.o files under a .libs/ directory is not recommended
> +because this belongs to libtool's innards.
> +
> +Indeed, libtool decides to place the *.o files in an
> +implementation-specific location:
> +- PIC *.o files go into a .libs/ directory;
> +- non-PIC *.o files are generated along side to their corresponding
> +  source files.
> +
> +Using PIC objects to build executable is legit, thought it may
> +introduce some minor overhead at runtime.
> +
> +However, hard-coding these PIC object files in the Makefile.am to build
> +executables breaks the build in case of static only build.
> +
> +In this case, no PIC object files is generated, so the linker will not
> +found some of the needed objects files.
> +
> +Changing these dependencies' path fixes the static build, keeping the
> +shared one ok, though the non-PIC object files are now always built.
> +
> +Fixes #983.
> +
> +Fix tested on git master and v2.6 with no change needed.
> +
> +Signed-off-by: Samuel Martin <s.martin49@gmail.com>
> +---
> + tests/unit/Makefile.am | 18 +++++++++---------
> + 1 file changed, 9 insertions(+), 9 deletions(-)
> +
> +diff --git a/tests/unit/Makefile.am b/tests/unit/Makefile.am
> +index c0c9c45..7bfe65a 100644
> +--- a/tests/unit/Makefile.am
> ++++ b/tests/unit/Makefile.am
> +@@ -34,9 +34,9 @@ SESSIONS=$(top_builddir)/src/bin/lttng-sessiond/session.o	\
> + 	 $(top_builddir)/src/bin/lttng-sessiond/consumer.o \
> + 	 $(top_builddir)/src/bin/lttng-sessiond/utils.o \
> + 	 $(top_builddir)/src/bin/lttng-sessiond/snapshot.o \
> +-	 $(top_builddir)/src/common/.libs/uri.o \
> +-	 $(top_builddir)/src/common/.libs/utils.o \
> +-	 $(top_builddir)/src/common/.libs/error.o \
> ++	 $(top_builddir)/src/common/uri.o \
> ++	 $(top_builddir)/src/common/utils.o \
> ++	 $(top_builddir)/src/common/error.o \
> + 	 $(top_builddir)/src/common/health/libhealth.la \
> + 	 $(top_builddir)/src/common/sessiond-comm/libsessiond-comm.la
> + 
> +@@ -60,8 +60,8 @@ UST_DATA_TRACE=$(top_builddir)/src/bin/lttng-sessiond/trace-ust.o \
> + 		   $(top_builddir)/src/bin/lttng-sessiond/session.o \
> + 		   $(top_builddir)/src/bin/lttng-sessiond/snapshot.o \
> + 		   $(top_builddir)/src/bin/lttng-sessiond/agent.o \
> +-		   $(top_builddir)/src/common/.libs/uri.o \
> +-		   $(top_builddir)/src/common/.libs/utils.o \
> ++		   $(top_builddir)/src/common/uri.o \
> ++		   $(top_builddir)/src/common/utils.o \
> + 		   $(top_builddir)/src/common/health/libhealth.la \
> + 		   $(top_builddir)/src/common/sessiond-comm/libsessiond-comm.la
> + 
> +@@ -75,8 +75,8 @@ endif
> + KERN_DATA_TRACE=$(top_builddir)/src/bin/lttng-sessiond/trace-kernel.o	\
> + 		$(top_builddir)/src/bin/lttng-sessiond/consumer.o	\
> + 		$(top_builddir)/src/bin/lttng-sessiond/utils.o \
> +-		$(top_builddir)/src/common/.libs/uri.o \
> +-		$(top_builddir)/src/common/.libs/utils.o \
> ++		$(top_builddir)/src/common/uri.o \
> ++		$(top_builddir)/src/common/utils.o \
> + 		$(top_builddir)/src/common/health/libhealth.la \
> + 		$(top_builddir)/src/common/sessiond-comm/libsessiond-comm.la
> + 
> +@@ -86,8 +86,8 @@ test_kernel_data_LDADD = $(LIBTAP) $(LIBCOMMON) $(LIBRELAYD) $(LIBSESSIOND_COMM)
> + test_kernel_data_LDADD += $(KERN_DATA_TRACE)
> + 
> + # utils suffix for unit test
> +-UTILS_SUFFIX=$(top_builddir)/src/common/.libs/utils.o \
> +-		$(top_builddir)/src/common/.libs/runas.o
> ++UTILS_SUFFIX=$(top_builddir)/src/common/utils.o \
> ++		$(top_builddir)/src/common/runas.o
> + 
> + # parse_size_suffix unit test
> + test_utils_parse_size_suffix_SOURCES = test_utils_parse_size_suffix.c
> +-- 
> +2.6.2
> +
> -- 
> 2.6.2
> 
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