From: Wang Nan <wangnan0@huawei.com>
To: <acme@kernel.org>, <alexei.starovoitov@gmail.com>
Cc: <lizefan@huawei.com>, <linux-kernel@vger.kernel.org>,
<pi3orama@163.com>, Wang Nan <wangnan0@huawei.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>,
Alexei Starovoitov <ast@fb.com>, He Kuang <hekuang@huawei.com>,
Jiri Olsa <jolsa@kernel.org>
Subject: [PATCH v2 18/18] perf clang: Define PERF_BUILTIN_CLANG for builtin clang compiling
Date: Mon, 26 Sep 2016 07:27:12 +0000 [thread overview]
Message-ID: <1474874832-134786-19-git-send-email-wangnan0@huawei.com> (raw)
In-Reply-To: <1474874832-134786-1-git-send-email-wangnan0@huawei.com>
By this macro BPF script knows what compiler it is being built with.
Scripts prefer external clang can force fall back to it by:
#ifdef PERF_BUILTIN_CLANG
# error I prefer external clang compiler
#endif
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: He Kuang <hekuang@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/util/c++/clang.cpp | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/perf/util/c++/clang.cpp b/tools/perf/util/c++/clang.cpp
index a2de788..dd32f5d 100644
--- a/tools/perf/util/c++/clang.cpp
+++ b/tools/perf/util/c++/clang.cpp
@@ -62,6 +62,7 @@ createCompilerInvocation(llvm::opt::ArgStringList CFlags, StringRef& Path,
"-vectorize-slp",
"-Wno-unused-value",
"-Wno-pointer-sign",
+ "-DPERF_BUILTIN_CLANG=1"
"-x", "c"};
CCArgs.append(CFlags.begin(), CFlags.end());
--
1.8.3.4
next prev parent reply other threads:[~2016-09-26 7:30 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-26 7:26 [PATCH v2 00/18] perf clang: Support compiling BPF script on the fly Wang Nan
2016-09-26 7:26 ` [PATCH v2 01/18] tools build: Support compiling C++ source file Wang Nan
2016-10-06 22:44 ` [tip:perf/urgent] " tip-bot for Wang Nan
2016-09-26 7:26 ` [PATCH v2 02/18] perf tools: Add feature detection for g++ Wang Nan
2016-10-06 22:45 ` [tip:perf/urgent] tools build: " tip-bot for Wang Nan
2016-09-26 7:26 ` [PATCH v2 03/18] perf tools: Add feature detection for LLVM Wang Nan
2016-09-26 7:26 ` [PATCH v2 04/18] perf tools: Add feature detection for clang Wang Nan
2016-09-26 7:26 ` [PATCH v2 05/18] perf build: Add clang and llvm compile and linking support Wang Nan
2016-09-26 7:27 ` [PATCH v2 06/18] perf clang: Add builtin clang support ant test case Wang Nan
2016-09-26 7:27 ` [PATCH v2 07/18] perf clang: Use real file system for #include Wang Nan
2016-09-26 7:27 ` [PATCH v2 08/18] perf clang: Allow passing CFLAGS to builtin clang Wang Nan
2016-09-26 7:27 ` [PATCH v2 09/18] perf clang: Update test case to use real BPF script Wang Nan
2016-09-26 7:27 ` [PATCH v2 10/18] perf clang: Support compile IR to BPF object and add testcase Wang Nan
2016-09-26 7:27 ` [PATCH v2 11/18] perf tools: Extract helpers in llvm-utils.c Wang Nan
2016-09-26 7:27 ` [PATCH v2 12/18] perf bpf: Compile BPF script use builtin clang support Wang Nan
2016-09-26 7:27 ` [PATCH v2 13/18] perf clang: Pass full path to builtin clang Wang Nan
2016-09-26 7:27 ` [PATCH v2 14/18] perf clang: Pass CFLAGS " Wang Nan
2016-09-26 7:27 ` [PATCH v2 15/18] perf clang: Link BPF functions declaration into perf Wang Nan
2016-09-26 7:27 ` [PATCH v2 16/18] perf clang: Declare BPF functions for BPF scripts automatically Wang Nan
2016-09-26 7:27 ` [PATCH v2 17/18] perf clang: Include helpers to BPF scripts Wang Nan
2016-09-26 7:27 ` Wang Nan [this message]
2016-10-05 23:20 ` [PATCH v2 00/18] perf clang: Support compiling BPF script on the fly Arnaldo Carvalho de Melo
2016-10-08 2:03 ` Wangnan (F)
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