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AFNElJ+YHn2+ipN/RfNdFpcbEdX9RqFdf9s+tNpJHOLZImac5lw/1RXw3ywXdq9QOOnLDOj3IFmrns2lwzdRHAo=@vger.kernel.org X-Gm-Message-State: AOJu0YyzUxkDT9t5vBEe1uTmsV0xMjSWorQIHshm69FcYkviT3myXX5U I4G8fwynUOROkixXs27ddD6gm4VDgYS/IkvyT3nRDvs8a7U8rK6lHh5JHGPCZhGfYifMQ5lXNwT iIaJkDFzPfQ== X-Received: from dlbbo27.prod.google.com ([2002:a05:7022:439b:b0:12d:e33d:70da]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7022:ea33:b0:12b:ee92:a60e with SMTP id a92af1059eb24-132a7edc4a9mr7122787c88.8.1778564177049; Mon, 11 May 2026 22:36:17 -0700 (PDT) Date: Mon, 11 May 2026 22:35:39 -0700 In-Reply-To: <20260512053539.3410189-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260512053539.3410189-1-irogers@google.com> X-Mailer: git-send-email 2.54.0.563.g4f69b47b94-goog Message-ID: <20260512053539.3410189-15-irogers@google.com> Subject: [PATCH v1 14/14] perf build: Prefix SCRIPTS with output directory to fix continuous rebuilds From: Ian Rogers To: Quentin Monnet , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Kumar Kartikeya Dwivedi , Song Liu , Yonghong Song , Jiri Olsa , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Adrian Hunter , James Clark , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Nick Terrell , David Sterba , Nathan Chancellor , Tomas Glozar , Dmitrii Dolgov <9erthalion6@gmail.com>, Costa Shulyupin , Alexandre Chartre , Yuzhuo Jing , Leo Yan , Ankur Arora , Markus Mayer , Collin Funk , Howard Chu , Dapeng Mi , Swapnil Sapkal , Thomas Falcon , Ricky Ringler , linux-kernel@vger.kernel.org, bpf@vger.kernel.org, linux-perf-users@vger.kernel.org Cc: Ian Rogers Content-Type: text/plain; charset="UTF-8" In Makefile.perf, ALL_PROGRAMS includes SCRIPTS (perf-archive, perf-iostat). However, unlike PROGRAMS and DLFILTERS, SCRIPTS was not prefixed with $(OUTPUT). During out-of-tree builds (or when O= is specified), Make checked for the unprefixed target 'tools/perf/perf-archive'. Since the actual script was installed into $(OUTPUT)perf-archive, Make concluded the target was missing and continuously re-executed the script installation rule on every single incremental build. Prefix SCRIPTS with $(OUTPUT) and update the static pattern rule to ensure Kbuild correctly tracks generated script prerequisites during incremental builds. Assisted-by: Gemini:gemini-3.1-pro-preview Signed-off-by: Ian Rogers --- tools/perf/Makefile.perf | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 98b6f9fda8d1..e700cc1ed028 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -405,7 +405,7 @@ python-clean := $(call QUIET_CLEAN, python) $(RM) -r $(PYTHON_EXTBUILD) $(OUTPUT # Use the detected configuration -include $(OUTPUT).config-detected -SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH)) +SCRIPTS = $(addprefix $(OUTPUT),$(patsubst %.sh,%,$(SCRIPT_SH))) PROGRAMS += $(OUTPUT)perf @@ -592,8 +592,8 @@ $(GTK_IN): FORCE prepare $(OUTPUT)libperf-gtk.so: $(GTK_IN) $(PERFLIBS) $(QUIET_LINK)$(CC) -o $@ -shared $(LDFLAGS) $(filter %.o,$^) $(GTK_LIBS) -$(SCRIPTS) : % : %.sh - $(QUIET_GEN)$(INSTALL) '$@.sh' '$(OUTPUT)$@' +$(SCRIPTS) : $(OUTPUT)% : %.sh + $(QUIET_GEN)$(INSTALL) '$<' '$@' $(OUTPUT)PERF-VERSION-FILE: .FORCE-PERF-VERSION-FILE $(Q)$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT) -- 2.54.0.563.g4f69b47b94-goog