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From: Ian Rogers <irogers@google.com>
To: "Peter Zijlstra" <peterz@infradead.org>,
	"Ingo Molnar" <mingo@redhat.com>,
	"Arnaldo Carvalho de Melo" <acme@kernel.org>,
	"Mark Rutland" <mark.rutland@arm.com>,
	"Alexander Shishkin" <alexander.shishkin@linux.intel.com>,
	"Jiri Olsa" <jolsa@kernel.org>,
	"Namhyung Kim" <namhyung@kernel.org>,
	"Nathan Chancellor" <nathan@kernel.org>,
	"Nick Desaulniers" <ndesaulniers@google.com>,
	"Tom Rix" <trix@redhat.com>,
	"Roberto Sassu" <roberto.sassu@huawei.com>,
	"Quentin Monnet" <quentin@isovalent.com>,
	"Andres Freund" <andres@anarazel.de>,
	"Tiezhu Yang" <yangtiezhu@loongson.cn>,
	"Pavithra Gurushankar" <gpavithrasha@gmail.com>,
	"Yang Jihong" <yangjihong1@huawei.com>,
	"Adrian Hunter" <adrian.hunter@intel.com>,
	"Leo Yan" <leo.yan@linaro.org>, "Martin Liška" <mliska@suse.cz>,
	linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
	llvm@lists.linux.dev
Cc: Stephane Eranian <eranian@google.com>, Ian Rogers <irogers@google.com>
Subject: [PATCH v1 04/13] perf build: Error if no libelf and NO_LIBELF isn't set
Date: Fri, 10 Mar 2023 22:57:44 -0800	[thread overview]
Message-ID: <20230311065753.3012826-5-irogers@google.com> (raw)
In-Reply-To: <20230311065753.3012826-1-irogers@google.com>

Building without libelf support is going disable a lot of
functionality. Require that the NO_LIBELF=1 build option is passed if
this is intentional.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/Makefile.config | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index a68a3e9b47ae..5691e2ffb1b9 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -426,15 +426,7 @@ else
       LIBC_SUPPORT := 1
     endif
     ifeq ($(LIBC_SUPPORT),1)
-      msg := $(warning No libelf found. Disables 'probe' tool, jvmti and BPF support in 'perf record'. Please install libelf-dev, libelf-devel or elfutils-libelf-devel);
-
-      NO_LIBELF := 1
-      NO_DWARF := 1
-      NO_DEMANGLE := 1
-      NO_LIBUNWIND := 1
-      NO_LIBDW_DWARF_UNWIND := 1
-      NO_LIBBPF := 1
-      NO_JVMTI := 1
+      msg := $(error ERROR: No libelf found. Disables 'probe' tool, jvmti and BPF support. Please install libelf-dev, libelf-devel, elfutils-libelf-devel or build with NO_LIBELF=1.)
     else
       ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
         ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
-- 
2.40.0.rc1.284.g88254d51c5-goog


  parent reply	other threads:[~2023-03-11  6:59 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-11  6:57 [PATCH v1 00/13] Perf tool build improvements Ian Rogers
2023-03-11  6:57 ` [PATCH v1 01/13] perf build: Support python/perf.so testing Ian Rogers
2023-03-11  6:57 ` [PATCH v1 02/13] perf build: Make BUILD_BPF_SKEL default, rename to NO_BPF_SKEL Ian Rogers
2023-03-13 20:19   ` Arnaldo Carvalho de Melo
2023-03-13 20:27     ` Ian Rogers
2023-03-13 20:34       ` Arnaldo Carvalho de Melo
2023-03-13 20:59         ` Arnaldo Carvalho de Melo
2023-03-13 21:05           ` Arnaldo Carvalho de Melo
2023-03-11  6:57 ` [PATCH v1 03/13] perf build: Remove unused HAVE_GLIBC_SUPPORT Ian Rogers
2023-03-11  6:57 ` Ian Rogers [this message]
2023-03-13 19:45   ` [PATCH v1 04/13] perf build: Error if no libelf and NO_LIBELF isn't set Arnaldo Carvalho de Melo
2023-03-13 20:18     ` Ian Rogers
2023-03-11  6:57 ` [PATCH v1 05/13] perf util: Remove weak sched_getcpu Ian Rogers
2023-03-11  6:57 ` [PATCH v1 06/13] perf build: Error if jevents won't work and NO_JEVENTS=1 isn't set Ian Rogers
2023-03-11  6:57 ` [PATCH v1 07/13] perf build: Make binutil libraries opt in Ian Rogers
2023-03-13 19:37   ` Arnaldo Carvalho de Melo
2023-03-11  6:57 ` [PATCH v1 08/13] tools build: Add feature test for abi::__cxa_demangle Ian Rogers
2023-03-11  6:57 ` [PATCH v1 09/13] perf symbol: Add abi::__cxa_demangle C++ demangling support Ian Rogers
2023-03-30 14:08   ` James Clark
2023-03-30 16:50     ` Ian Rogers
2023-03-30 19:03       ` Ian Rogers
2023-03-31  9:27         ` James Clark
2023-03-11  6:57 ` [PATCH v1 10/13] perf build: Switch libpfm4 to opt-out rather than opt-in Ian Rogers
2023-03-11  6:57 ` [PATCH v1 11/13] perf build: If libtraceevent isn't present error the build Ian Rogers
2023-03-11  6:57 ` [PATCH v1 12/13] tools headers: Make the difference output easier to read Ian Rogers
2023-03-13 19:35   ` Arnaldo Carvalho de Melo
2023-03-13 20:14     ` Ian Rogers
2023-03-11  6:57 ` [PATCH v1 13/13] perf build: Remove redundant NO_NEWT build option Ian Rogers
2023-03-14 12:11 ` [PATCH v1 00/13] Perf tool build improvements Arnaldo Carvalho de Melo
2023-03-14 12:12   ` Arnaldo Carvalho de Melo
2023-03-14 12:27     ` Arnaldo Carvalho de Melo
2023-03-14 12:29       ` Arnaldo Carvalho de Melo
2023-03-14 12:21   ` Adrian Hunter
2023-03-14 12:28     ` Arnaldo Carvalho de Melo

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