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Message-Id: <20230724201247.748146-5-irogers@google.com>
Date: Mon, 24 Jul 2023 13:12:47 -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>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Ian Rogers <irogers@...gle.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Nathan Chancellor <nathan@...nel.org>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Tom Rix <trix@...hat.com>,
Kan Liang <kan.liang@...ux.intel.com>,
Yang Jihong <yangjihong1@...wei.com>,
Ravi Bangoria <ravi.bangoria@....com>,
Carsten Haitzler <carsten.haitzler@....com>,
Zhengjun Xing <zhengjun.xing@...ux.intel.com>,
James Clark <james.clark@....com>,
linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
bpf@...r.kernel.org, llvm@...ts.linux.dev
Cc: maskray@...gle.com
Subject: [PATCH v1 4/4] perf build: Add LTO build option
Add an LTO build option, that sets the appropriate CFLAGS and CXXFLAGS
values.
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
tools/perf/Makefile.config | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index c5db0de49868..a9cfe83638a9 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -256,6 +256,11 @@ ifdef PARSER_DEBUG
$(call detected_var,PARSER_DEBUG_FLEX)
endif
+ifdef LTO
+ CORE_CFLAGS += -flto
+ CXXFLAGS += -flto
+endif
+
# Try different combinations to accommodate systems that only have
# python[2][3]-config in weird combinations in the following order of
# priority from lowest to highest:
--
2.41.0.487.g6d72f3e995-goog
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