linux-kernel - [PATCH v2 1/6] tools/build: Don't pass test log files to linker

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Message-Id: <20250311213628.569562-2-irogers@google.com>
Date: Tue, 11 Mar 2025 14:36:23 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	Kan Liang <kan.liang@...ux.intel.com>, James Clark <james.clark@...aro.org>, 
	Charlie Jenkins <charlie@...osinc.com>, John Garry <john.g.garry@...cle.com>, 
	Veronika Molnarova <vmolnaro@...hat.com>, "Masami Hiramatsu (Google)" <mhiramat@...nel.org>, linux-kernel@...r.kernel.org, 
	linux-perf-users@...r.kernel.org
Subject: [PATCH v2 1/6] tools/build: Don't pass test log files to linker

Separate test log files from object files. Depend on test log output
but don't pass to the linker.

Reviewed-by: James Clark <james.clark@...aro.org>
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/build/Makefile.build | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build
index e710ed67a1b4..3584ff308607 100644
--- a/tools/build/Makefile.build
+++ b/tools/build/Makefile.build
@@ -129,6 +129,10 @@ objprefix    := $(subst ./,,$(OUTPUT)$(dir)/)
 obj-y        := $(addprefix $(objprefix),$(obj-y))
 subdir-obj-y := $(addprefix $(objprefix),$(subdir-obj-y))
 
+# Separate out test log files from real build objects.
+test-y       := $(filter %_log, $(obj-y))
+obj-y        := $(filter-out %_log, $(obj-y))
+
 # Final '$(obj)-in.o' object
 in-target := $(objprefix)$(obj)-in.o
 
@@ -139,7 +143,7 @@ $(subdir-y):
 
 $(sort $(subdir-obj-y)): $(subdir-y) ;
 
-$(in-target): $(obj-y) FORCE
+$(in-target): $(obj-y) $(test-y) FORCE
 	$(call rule_mkdir)
 	$(call if_changed,$(host)ld_multi)
 
-- 
2.49.0.rc0.332.g42c0ae87b1-goog