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-rw-r--r--dev-util/perf/files/perf-5.15-clang.patch231
1 files changed, 231 insertions, 0 deletions
diff --git a/dev-util/perf/files/perf-5.15-clang.patch b/dev-util/perf/files/perf-5.15-clang.patch
new file mode 100644
index 000000000000..5ea0c75f27f1
--- /dev/null
+++ b/dev-util/perf/files/perf-5.15-clang.patch
@@ -0,0 +1,231 @@
+From e1f1cbfe812e4a019034105ab5e81fd9f0742353 Mon Sep 17 00:00:00 2001
+From: Ian Rogers <irogers@google.com>
+Date: Mon, 11 Oct 2021 19:13:20 -0700
+Subject: [PATCH 1/3] tools: Bump minimum LLVM C++ std to GNU++14
+
+LLVM 9 (current release is LLVM 13) moved the minimum C++ version to
+GNU++14. Bump the version numbers in the feature test and perf build.
+
+Reviewed-by: Fangrui Song <maskray@google.com>
+Signed-off-by: Ian Rogers <irogers@google.com>
+Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
+Cc: Daniel Borkmann <daniel@iogearbox.net>
+Cc: Ingo Molnar <mingo@redhat.com>
+Cc: Jiri Olsa <jolsa@redhat.com>
+Cc: Leo Yan <leo.yan@linaro.org>
+Cc: Mark Rutland <mark.rutland@arm.com>
+Cc: Michael Petlan <mpetlan@redhat.com>
+Cc: Namhyung Kim <namhyung@kernel.org>
+Cc: Nathan Chancellor <nathan@kernel.org>
+Cc: Nick Desaulniers <ndesaulniers@google.com>
+Cc: Peter Zijlstra <peterz@infradead.org>
+Cc: Sedat Dilek <sedat.dilek@gmail.com>
+Cc: llvm@lists.linux.dev
+Link: https://lore.kernel.org/r/20211012021321.291635-1-irogers@google.com
+Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+---
+ tools/build/feature/Makefile | 6 +++---
+ tools/perf/Makefile.config | 2 +-
+ 2 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
+index eff55d287db1..9756e589e4ae 100644
+--- a/tools/build/feature/Makefile
++++ b/tools/build/feature/Makefile
+@@ -296,7 +296,7 @@ $(OUTPUT)test-jvmti-cmlr.bin:
+ $(BUILD)
+
+ $(OUTPUT)test-llvm.bin:
+- $(BUILDXX) -std=gnu++11 \
++ $(BUILDXX) -std=gnu++14 \
+ -I$(shell $(LLVM_CONFIG) --includedir) \
+ -L$(shell $(LLVM_CONFIG) --libdir) \
+ $(shell $(LLVM_CONFIG) --libs Core BPF) \
+@@ -304,12 +304,12 @@ $(OUTPUT)test-llvm.bin:
+ > $(@:.bin=.make.output) 2>&1
+
+ $(OUTPUT)test-llvm-version.bin:
+- $(BUILDXX) -std=gnu++11 \
++ $(BUILDXX) -std=gnu++14 \
+ -I$(shell $(LLVM_CONFIG) --includedir) \
+ > $(@:.bin=.make.output) 2>&1
+
+ $(OUTPUT)test-clang.bin:
+- $(BUILDXX) -std=gnu++11 \
++ $(BUILDXX) -std=gnu++14 \
+ -I$(shell $(LLVM_CONFIG) --includedir) \
+ -L$(shell $(LLVM_CONFIG) --libdir) \
+ -Wl,--start-group -lclangBasic -lclangDriver \
+diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
+index 14e3e8d702a0..ddbe86defe39 100644
+--- a/tools/perf/Makefile.config
++++ b/tools/perf/Makefile.config
+@@ -285,7 +285,7 @@ CORE_CFLAGS += -Wall
+ CORE_CFLAGS += -Wextra
+ CORE_CFLAGS += -std=gnu99
+
+-CXXFLAGS += -std=gnu++11 -fno-exceptions -fno-rtti
++CXXFLAGS += -std=gnu++14 -fno-exceptions -fno-rtti
+ CXXFLAGS += -Wall
+ CXXFLAGS += -fno-omit-frame-pointer
+ CXXFLAGS += -ggdb3
+--
+2.33.1
+
+
+From 3e5c11995e04a9e3351330c34c4c802ce50df46c Mon Sep 17 00:00:00 2001
+From: Ian Rogers <irogers@google.com>
+Date: Mon, 11 Oct 2021 19:13:21 -0700
+Subject: [PATCH 2/3] perf clang: Fixes for more recent LLVM/clang
+
+The parameters to two functions and the location of a variable have
+changed in more recent LLVM/clang releases.
+
+Remove the unneecessary -fmessage-length and -ferror-limit flags, the
+former causes failures like:
+
+ 58: builtin clang support :
+ 58.1: builtin clang compile C source to IR :
+ --- start ---
+ test child forked, pid 279307
+ error: unknown argument: '-fmessage-length'
+ 1 error generated.
+ test child finished with -1
+
+Tested with LLVM 6, 8, 9, 10 and 11.
+
+Reviewed-by: Fangrui Song <maskray@google.com>
+Signed-off-by: Ian Rogers <irogers@google.com>
+Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
+Cc: Daniel Borkmann <daniel@iogearbox.net>
+Cc: Ingo Molnar <mingo@redhat.com>
+Cc: Jiri Olsa <jolsa@redhat.com>
+Cc: Leo Yan <leo.yan@linaro.org>
+Cc: Mark Rutland <mark.rutland@arm.com>
+Cc: Michael Petlan <mpetlan@redhat.com>
+Cc: Namhyung Kim <namhyung@kernel.org>
+Cc: Nathan Chancellor <nathan@kernel.org>
+Cc: Nick Desaulniers <ndesaulniers@google.com>
+Cc: Peter Zijlstra <peterz@infradead.org>
+Cc: Sedat Dilek <sedat.dilek@gmail.com>,
+Cc: llvm@lists.linux.dev
+Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
+---
+ tools/perf/util/c++/clang.cpp | 21 +++++++++++++--------
+ 1 file changed, 13 insertions(+), 8 deletions(-)
+
+diff --git a/tools/perf/util/c++/clang.cpp b/tools/perf/util/c++/clang.cpp
+index c8885dfa3667..df7b18fb6b6e 100644
+--- a/tools/perf/util/c++/clang.cpp
++++ b/tools/perf/util/c++/clang.cpp
+@@ -43,8 +43,6 @@ createCompilerInvocation(llvm::opt::ArgStringList CFlags, StringRef& Path,
+ "-cc1",
+ "-triple", "bpf-pc-linux",
+ "-fsyntax-only",
+- "-ferror-limit", "19",
+- "-fmessage-length", "127",
+ "-O2",
+ "-nostdsysteminc",
+ "-nobuiltininc",
+@@ -55,7 +53,11 @@ createCompilerInvocation(llvm::opt::ArgStringList CFlags, StringRef& Path,
+ "-x", "c"};
+
+ CCArgs.append(CFlags.begin(), CFlags.end());
+- CompilerInvocation *CI = tooling::newInvocation(&Diags, CCArgs);
++ CompilerInvocation *CI = tooling::newInvocation(&Diags, CCArgs
++#if CLANG_VERSION_MAJOR >= 11
++ ,/*BinaryName=*/nullptr
++#endif
++ );
+
+ FrontendOptions& Opts = CI->getFrontendOpts();
+ Opts.Inputs.clear();
+@@ -151,13 +153,16 @@ getBPFObjectFromModule(llvm::Module *Module)
+
+ legacy::PassManager PM;
+ bool NotAdded;
+-#if CLANG_VERSION_MAJOR < 7
+- NotAdded = TargetMachine->addPassesToEmitFile(PM, ostream,
+- TargetMachine::CGFT_ObjectFile);
++ NotAdded = TargetMachine->addPassesToEmitFile(PM, ostream
++#if CLANG_VERSION_MAJOR >= 7
++ , /*DwoOut=*/nullptr
++#endif
++#if CLANG_VERSION_MAJOR < 10
++ , TargetMachine::CGFT_ObjectFile
+ #else
+- NotAdded = TargetMachine->addPassesToEmitFile(PM, ostream, nullptr,
+- TargetMachine::CGFT_ObjectFile);
++ , llvm::CGFT_ObjectFile
+ #endif
++ );
+ if (NotAdded) {
+ llvm::errs() << "TargetMachine can't emit a file of this type\n";
+ return std::unique_ptr<llvm::SmallVectorImpl<char>>(nullptr);
+--
+2.33.1
+
+
+From aa2b4e5e920cbaadc0fed9b8aa7c4498feee3dd5 Mon Sep 17 00:00:00 2001
+From: Guilherme Amadio <amadio@cern.ch>
+Date: Thu, 29 Apr 2021 13:44:48 +0200
+Subject: [PATCH 3/3] tools feature: update LLVM/Clang detection
+
+Since LLVM/Clang 10, individual libraries have been merged into
+monolithic libraries libLLVM.so, libclang.so, and libclang-cpp.so.
+---
+ tools/build/feature/Makefile | 8 +++-----
+ tools/perf/Makefile.perf | 7 ++-----
+ 2 files changed, 5 insertions(+), 10 deletions(-)
+
+diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
+index 9756e589e4ae..23478bd06093 100644
+--- a/tools/build/feature/Makefile
++++ b/tools/build/feature/Makefile
+@@ -299,7 +299,7 @@ $(OUTPUT)test-llvm.bin:
+ $(BUILDXX) -std=gnu++14 \
+ -I$(shell $(LLVM_CONFIG) --includedir) \
+ -L$(shell $(LLVM_CONFIG) --libdir) \
+- $(shell $(LLVM_CONFIG) --libs Core BPF) \
++ $(shell $(LLVM_CONFIG) --libs) \
+ $(shell $(LLVM_CONFIG) --system-libs) \
+ > $(@:.bin=.make.output) 2>&1
+
+@@ -312,11 +312,9 @@ $(OUTPUT)test-clang.bin:
+ $(BUILDXX) -std=gnu++14 \
+ -I$(shell $(LLVM_CONFIG) --includedir) \
+ -L$(shell $(LLVM_CONFIG) --libdir) \
+- -Wl,--start-group -lclangBasic -lclangDriver \
+- -lclangFrontend -lclangEdit -lclangLex \
+- -lclangAST -Wl,--end-group \
+- $(shell $(LLVM_CONFIG) --libs Core option) \
++ $(shell $(LLVM_CONFIG) --libs) \
+ $(shell $(LLVM_CONFIG) --system-libs) \
++ -lclang-cpp \
+ > $(@:.bin=.make.output) 2>&1
+
+ -include $(OUTPUT)*.d
+diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
+index b856afa6eb52..d0ff0ddf9c18 100644
+--- a/tools/perf/Makefile.perf
++++ b/tools/perf/Makefile.perf
+@@ -410,14 +410,11 @@ EXTLIBS := $(call filter-out,$(EXCLUDE_EXTLIBS),$(EXTLIBS))
+ LIBS = -Wl,--whole-archive $(PERFLIBS) $(EXTRA_PERFLIBS) -Wl,--no-whole-archive -Wl,--start-group $(EXTLIBS) -Wl,--end-group
+
+ ifeq ($(USE_CLANG), 1)
+- CLANGLIBS_LIST = AST Basic CodeGen Driver Frontend Lex Tooling Edit Sema Analysis Parse Serialization
+- CLANGLIBS_NOEXT_LIST = $(foreach l,$(CLANGLIBS_LIST),$(shell $(LLVM_CONFIG) --libdir)/libclang$(l))
+- LIBCLANG = $(foreach l,$(CLANGLIBS_NOEXT_LIST),$(wildcard $(l).a $(l).so))
+- LIBS += -Wl,--start-group $(LIBCLANG) -Wl,--end-group
++ LIBS += -lclang-cpp
+ endif
+
+ ifeq ($(USE_LLVM), 1)
+- LIBLLVM = $(shell $(LLVM_CONFIG) --libs all) $(shell $(LLVM_CONFIG) --system-libs)
++ LIBLLVM = $(shell $(LLVM_CONFIG) --libs) $(shell $(LLVM_CONFIG) --system-libs)
+ LIBS += -L$(shell $(LLVM_CONFIG) --libdir) $(LIBLLVM)
+ endif
+
+--
+2.33.1
+
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