Stanislav Fomichev 14541b1e7e perf build: Don't unconditionally link the libbfd feature test to -liberty and -lz ... Current libbfd feature test unconditionally links against -liberty and -lz. While it's required on some systems (e.g. opensuse), it's completely unnecessary on the others, where only -lbdf is sufficient (debian). This patch streamlines (and renames) the following feature checks: feature-libbfd - only link against -lbfd (debian), see commit 2cf9040714 ("perf tools: Fix bfd dependency libraries detection") feature-libbfd-liberty - link against -lbfd and -liberty feature-libbfd-liberty-z - link against -lbfd, -liberty and -lz (opensuse), see commit 280e7c48c3 ("perf tools: fix BFD detection on opensuse") (feature-liberty{,-z} were renamed to feature-libbfd-liberty{,z} for clarity) The main motivation is to fix this feature test for bpftool which is currently broken on debian (libbfd feature shows OFF, but we still unconditionally link against -lbfd and it works). Tested on debian with only -lbfd installed (without -liberty); I'd appreciate if somebody on the other systems can test this new detection method. Signed-off-by: Stanislav Fomichev <sdf@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/4dfc634cfcfb236883971b5107cf3c28ec8a31be.1542328222.git.sdf@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2018-12-21 09:42:46 -03:00
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Documentation	tools build: Add CFLAGS_REMOVE_* support	2016-11-14 11:37:25 -03:00
feature	perf build: Don't unconditionally link the libbfd feature test to -liberty and -lz	2018-12-21 09:42:46 -03:00
tests	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
.gitignore	perf build: Add fixdep to .gitignore	2015-10-20 10:43:28 -03:00
Build	tools build: Make fixdep a hostprog	2016-10-03 11:40:35 -03:00
Build.include	kbuild: Rename HOSTCFLAGS to KBUILD_HOSTCFLAGS	2018-07-18 01:18:05 +09:00
fixdep.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Makefile	kbuild: Rename HOSTLDFLAGS to KBUILD_HOSTLDFLAGS	2018-07-18 01:18:05 +09:00
Makefile.build	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Makefile.feature	perf build: Don't unconditionally link the libbfd feature test to -liberty and -lz	2018-12-21 09:42:46 -03:00
Makefile.include	perf build: Add special fixdep cleaning rule	2017-02-17 16:04:38 -03:00