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perf build: Fix perf build issues with fixdep

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Commit a808a2b35f ("tools build: Fix fixdep dependencies") broke the
perf build ("make -C tools/perf") by introducing two inadvertent
conflicts:

  1) tools/build/Makefile includes tools/build/Makefile.include, which
     defines a phony 'fixdep' target.  This conflicts with the $(FIXDEP)
     file target in tools/build/Makefile when OUTPUT is empty, causing
     make to report duplicate recipes for the same target.

  2) The FIXDEP variable in tools/build/Makefile conflicts with the
     previously existing one in tools/perf/Makefile.perf.

Remove the unnecessary include of tools/build/Makefile.include from
tools/build/Makefile, and rename the FIXDEP variable in
tools/perf/Makefile.perf to FIXDEP_BUILT.

Fixes: a808a2b35f ("tools build: Fix fixdep dependencies")
Reported-by: Thorsten Leemhuis <linux@leemhuis.info>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Thorsten Leemhuis <linux@leemhuis.info>
Link: https://patch.msgid.link/8881bc3321bd9fa58802e4f36286eefe3667806b.1760992391.git.jpoimboe@kernel.org
This commit is contained in:
Josh Poimboeuf
2025-10-20 13:33:15 -07:00
committed by Peter Zijlstra
parent 9025688bf6
commit f6af8690d1
2 changed files with 3 additions and 5 deletions
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6
tools/perf/Makefile.perf
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@@ -234,12 +234,12 @@ endif
# The fixdep build - we force fixdep tool to be built as
# the first target in the separate make session not to be
# disturbed by any parallel make jobs. Once fixdep is done
# we issue the requested build with FIXDEP=1 variable.
# we issue the requested build with FIXDEP_BUILT=1 variable.
#
# The fixdep build is disabled for $(NON_CONFIG_TARGETS)
# targets, because it's not necessary.
ifdef FIXDEP
ifdef FIXDEP_BUILT
force_fixdep := 0
else
force_fixdep := $(config)
@@ -286,7 +286,7 @@ $(goals) all: sub-make
sub-make: fixdep
@./check-headers.sh
$(Q)$(MAKE) FIXDEP=1 -f Makefile.perf $(goals)
$(Q)$(MAKE) FIXDEP_BUILT=1 -f Makefile.perf $(goals)
else # force_fixdep