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Subject[PATCH 049/161] tools/perf/build: Fix non-canonical directory names in O=
Date
From: Ingo Molnar <mingo@kernel.org>

This was a long-standing bug, relative pathnames like O=dir did not fully
work in the build system:

$ make O=localdir clean

SUBDIR Documentation
../../scripts/Makefile.include:3: *** O=localdir does not exist. Stop.
make[1]: *** [clean] Error 2
make: *** [clean] Error 2

Fix this by canonizing the directory before passing it to Makefile.perf.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-hchMp1hozn9tqgswWcooxcru@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
tools/perf/Makefile | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 74f52d8f9631..9580ebe260e0 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -30,12 +30,19 @@ ifeq ($(JOBS),)
endif
endif

+#
+# Only pass canonical directory names as the output directory:
+#
+ifneq ($(O),)
+ FULL_O := $(shell readlink -f $(O))
+endif
+
define print_msg
@printf ' BUILD: Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build\n'
endef

define make
- @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(O) $@
+ @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(FULL_O) $@
endef

#
--
1.8.1.4


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