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-rw-r--r--tools/build/feature/test-clang.cpp28
-rw-r--r--tools/build/feature/test-cxx.cpp16
-rw-r--r--tools/build/feature/test-llvm-version.cpp12
-rw-r--r--tools/build/feature/test-llvm.cpp14
-rw-r--r--tools/perf/Makefile.config31
-rw-r--r--tools/perf/Makefile.perf17
-rw-r--r--tools/perf/tests/Build1
-rw-r--r--tools/perf/tests/builtin-test.c1
-rw-r--r--tools/perf/tests/clang.c32
-rw-r--r--tools/perf/tests/make1
-rw-r--r--tools/perf/util/Build2
-rw-r--r--tools/perf/util/bpf-loader.c15
-rw-r--r--tools/perf/util/c++/Build5
-rw-r--r--tools/perf/util/c++/clang-c.h43
-rw-r--r--tools/perf/util/c++/clang-test.cpp67
-rw-r--r--tools/perf/util/c++/clang.cpp225
-rw-r--r--tools/perf/util/c++/clang.h27
17 files changed, 4 insertions, 533 deletions
diff --git a/tools/build/feature/test-clang.cpp b/tools/build/feature/test-clang.cpp
deleted file mode 100644
index 7d87075cd1c5..000000000000
--- a/tools/build/feature/test-clang.cpp
+++ /dev/null
@@ -1,28 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include "clang/Basic/Version.h"
-#if CLANG_VERSION_MAJOR < 8
-#include "clang/Basic/VirtualFileSystem.h"
-#endif
-#include "clang/Driver/Driver.h"
-#include "clang/Frontend/TextDiagnosticPrinter.h"
-#include "llvm/ADT/IntrusiveRefCntPtr.h"
-#include "llvm/Support/ManagedStatic.h"
-#if CLANG_VERSION_MAJOR >= 8
-#include "llvm/Support/VirtualFileSystem.h"
-#endif
-#include "llvm/Support/raw_ostream.h"
-
-using namespace clang;
-using namespace clang::driver;
-
-int main()
-{
- IntrusiveRefCntPtr<DiagnosticIDs> DiagID(new DiagnosticIDs());
- IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
-
- DiagnosticsEngine Diags(DiagID, &*DiagOpts);
- Driver TheDriver("test", "bpf-pc-linux", Diags);
-
- llvm::llvm_shutdown();
- return 0;
-}
diff --git a/tools/build/feature/test-cxx.cpp b/tools/build/feature/test-cxx.cpp
deleted file mode 100644
index 396aaedd2418..000000000000
--- a/tools/build/feature/test-cxx.cpp
+++ /dev/null
@@ -1,16 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <iostream>
-#include <memory>
-
-static void print_str(std::string s)
-{
- std::cout << s << std::endl;
-}
-
-int main()
-{
- std::string s("Hello World!");
- print_str(std::move(s));
- std::cout << "|" << s << "|" << std::endl;
- return 0;
-}
diff --git a/tools/build/feature/test-llvm-version.cpp b/tools/build/feature/test-llvm-version.cpp
deleted file mode 100644
index 8a091625446a..000000000000
--- a/tools/build/feature/test-llvm-version.cpp
+++ /dev/null
@@ -1,12 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <cstdio>
-#include "llvm/Config/llvm-config.h"
-
-#define NUM_VERSION (((LLVM_VERSION_MAJOR) << 16) + (LLVM_VERSION_MINOR << 8) + LLVM_VERSION_PATCH)
-#define pass int main() {printf("%x\n", NUM_VERSION); return 0;}
-
-#if NUM_VERSION >= 0x030900
-pass
-#else
-# error This LLVM is not tested yet.
-#endif
diff --git a/tools/build/feature/test-llvm.cpp b/tools/build/feature/test-llvm.cpp
deleted file mode 100644
index 88a3d1bdd9f6..000000000000
--- a/tools/build/feature/test-llvm.cpp
+++ /dev/null
@@ -1,14 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include "llvm/Support/ManagedStatic.h"
-#include "llvm/Support/raw_ostream.h"
-#define NUM_VERSION (((LLVM_VERSION_MAJOR) << 16) + (LLVM_VERSION_MINOR << 8) + LLVM_VERSION_PATCH)
-
-#if NUM_VERSION < 0x030900
-# error "LLVM version too low"
-#endif
-int main()
-{
- llvm::errs() << "Hello World!\n";
- llvm::llvm_shutdown();
- return 0;
-}
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 1bf8dc53641f..e0592ed4c10f 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -1127,37 +1127,6 @@ ifndef NO_JVMTI
endif
endif
-USE_CXX = 0
-USE_CLANGLLVM = 0
-ifdef LIBCLANGLLVM
- $(call feature_check,cxx)
- ifneq ($(feature-cxx), 1)
- msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
- else
- $(call feature_check,llvm)
- $(call feature_check,llvm-version)
- ifneq ($(feature-llvm), 1)
- msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
- else
- $(call feature_check,clang)
- ifneq ($(feature-clang), 1)
- msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
- else
- CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
- CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
- $(call detected,CONFIG_CXX)
- $(call detected,CONFIG_CLANGLLVM)
- USE_CXX = 1
- USE_LLVM = 1
- USE_CLANG = 1
- ifneq ($(feature-llvm-version),1)
- msg := $(warning This version of LLVM is not tested. May cause build errors)
- endif
- endif
- endif
- endif
-endif
-
ifndef NO_LIBPFM4
$(call feature_check,libpfm4)
ifeq ($(feature-libpfm4), 1)
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 0ed7ee0c1665..5370d7bf123e 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -99,10 +99,6 @@ include ../scripts/utilities.mak
# Define NO_JVMTI_CMLR (debug only) if you do not want to process CMLR
# data for java source lines.
#
-# Define LIBCLANGLLVM if you DO want builtin clang and llvm support.
-# When selected, pass LLVM_CONFIG=/path/to/llvm-config to `make' if
-# llvm-config is not in $PATH.
-#
# Define CORESIGHT if you DO WANT support for CoreSight trace decoding.
#
# Define NO_AIO if you do not want support of Posix AIO based trace
@@ -425,19 +421,6 @@ endif
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)
- LIBS += -L$(shell $(LLVM_CONFIG) --libdir) -lclang-cpp
-endif
-
-ifeq ($(USE_LLVM), 1)
- LIBLLVM = $(shell $(LLVM_CONFIG) --libs all) $(shell $(LLVM_CONFIG) --system-libs)
- LIBS += -L$(shell $(LLVM_CONFIG) --libdir) $(LIBLLVM)
-endif
-
-ifeq ($(USE_CXX), 1)
- LIBS += -lstdc++
-endif
-
export INSTALL SHELL_PATH
### Build rules
diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build
index fb9ac5dc4079..52df5923a8b9 100644
--- a/tools/perf/tests/Build
+++ b/tools/perf/tests/Build
@@ -51,7 +51,6 @@ perf-y += sdt.o
perf-y += is_printable_array.o
perf-y += bitmap.o
perf-y += perf-hooks.o
-perf-y += clang.o
perf-y += unit_number__scnprintf.o
perf-y += mem2node.o
perf-y += maps.o
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 6accb5442a73..0f3691fd31c2 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -108,7 +108,6 @@ static struct test_suite *generic_tests[] = {
&suite__is_printable_array,
&suite__bitmap_print,
&suite__perf_hooks,
- &suite__clang,
&suite__unit_number__scnprint,
&suite__mem2node,
&suite__time_utils,
diff --git a/tools/perf/tests/clang.c b/tools/perf/tests/clang.c
deleted file mode 100644
index a7111005d5b9..000000000000
--- a/tools/perf/tests/clang.c
+++ /dev/null
@@ -1,32 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include "tests.h"
-#include "c++/clang-c.h"
-#include <linux/kernel.h>
-
-#ifndef HAVE_LIBCLANGLLVM_SUPPORT
-static int test__clang_to_IR(struct test_suite *test __maybe_unused,
- int subtest __maybe_unused)
-{
- return TEST_SKIP;
-}
-
-static int test__clang_to_obj(struct test_suite *test __maybe_unused,
- int subtest __maybe_unused)
-{
- return TEST_SKIP;
-}
-#endif
-
-static struct test_case clang_tests[] = {
- TEST_CASE_REASON("builtin clang compile C source to IR", clang_to_IR,
- "not compiled in"),
- TEST_CASE_REASON("builtin clang compile C source to ELF object",
- clang_to_obj,
- "not compiled in"),
- { .name = NULL, }
-};
-
-struct test_suite suite__clang = {
- .desc = "builtin clang support",
- .test_cases = clang_tests,
-};
diff --git a/tools/perf/tests/make b/tools/perf/tests/make
index 58cf96d762d0..ea4c341f5af1 100644
--- a/tools/perf/tests/make
+++ b/tools/perf/tests/make
@@ -95,7 +95,6 @@ make_with_babeltrace:= LIBBABELTRACE=1
make_with_coresight := CORESIGHT=1
make_no_sdt := NO_SDT=1
make_no_syscall_tbl := NO_SYSCALL_TABLE=1
-make_with_clangllvm := LIBCLANGLLVM=1
make_no_libpfm4 := NO_LIBPFM4=1
make_with_gtk2 := GTK2=1
make_refcnt_check := EXTRA_CFLAGS="-DREFCNT_CHECKING=1"
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 9699e31ff4c0..ff3b55c7ed43 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -232,8 +232,6 @@ perf-y += perf-hooks.o
perf-$(CONFIG_LIBBPF) += bpf-event.o
perf-$(CONFIG_LIBBPF) += bpf-utils.o
-perf-$(CONFIG_CXX) += c++/
-
perf-$(CONFIG_LIBPFM4) += pfm.o
CFLAGS_config.o += -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))"
diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
index 50e42698cbb7..b54e42f17926 100644
--- a/tools/perf/util/bpf-loader.c
+++ b/tools/perf/util/bpf-loader.c
@@ -26,7 +26,6 @@
#include "strfilter.h"
#include "util.h"
#include "llvm-utils.h"
-#include "c++/clang-c.h"
#include "util/hashmap.h"
#include "asm/bug.h"
@@ -220,16 +219,10 @@ struct bpf_object *bpf__prepare_load(const char *filename, bool source)
void *obj_buf;
size_t obj_buf_sz;
- perf_clang__init();
- err = perf_clang__compile_bpf(filename, &obj_buf, &obj_buf_sz);
- perf_clang__cleanup();
- if (err) {
- pr_debug("bpf: builtin compilation failed: %d, try external compiler\n", err);
- err = llvm__compile_bpf(filename, &obj_buf, &obj_buf_sz);
- if (err)
- return ERR_PTR(-BPF_LOADER_ERRNO__COMPILE);
- } else
- pr_debug("bpf: successful builtin compilation\n");
+ err = llvm__compile_bpf(filename, &obj_buf, &obj_buf_sz);
+ if (err)
+ return ERR_PTR(-BPF_LOADER_ERRNO__COMPILE);
+
obj = bpf_object__open_mem(obj_buf, obj_buf_sz, &opts);
if (!IS_ERR_OR_NULL(obj) && llvm_param.dump_obj)
diff --git a/tools/perf/util/c++/Build b/tools/perf/util/c++/Build
deleted file mode 100644
index 8610d032ac19..000000000000
--- a/tools/perf/util/c++/Build
+++ /dev/null
@@ -1,5 +0,0 @@
-perf-$(CONFIG_CLANGLLVM) += clang.o
-perf-$(CONFIG_CLANGLLVM) += clang-test.o
-
-CXXFLAGS_clang.o += -Wno-unused-parameter
-CXXFLAGS_clang-test.o += -Wno-unused-parameter
diff --git a/tools/perf/util/c++/clang-c.h b/tools/perf/util/c++/clang-c.h
deleted file mode 100644
index d3731a876b6c..000000000000
--- a/tools/perf/util/c++/clang-c.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef PERF_UTIL_CLANG_C_H
-#define PERF_UTIL_CLANG_C_H
-
-#include <stddef.h> /* for size_t */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifdef HAVE_LIBCLANGLLVM_SUPPORT
-extern void perf_clang__init(void);
-extern void perf_clang__cleanup(void);
-
-struct test_suite;
-extern int test__clang_to_IR(struct test_suite *test, int subtest);
-extern int test__clang_to_obj(struct test_suite *test, int subtest);
-
-extern int perf_clang__compile_bpf(const char *filename,
- void **p_obj_buf,
- size_t *p_obj_buf_sz);
-#else
-
-#include <errno.h>
-#include <linux/compiler.h> /* for __maybe_unused */
-
-static inline void perf_clang__init(void) { }
-static inline void perf_clang__cleanup(void) { }
-
-static inline int
-perf_clang__compile_bpf(const char *filename __maybe_unused,
- void **p_obj_buf __maybe_unused,
- size_t *p_obj_buf_sz __maybe_unused)
-{
- return -ENOTSUP;
-}
-
-#endif
-
-#ifdef __cplusplus
-}
-#endif
-#endif
diff --git a/tools/perf/util/c++/clang-test.cpp b/tools/perf/util/c++/clang-test.cpp
deleted file mode 100644
index a4683ca53697..000000000000
--- a/tools/perf/util/c++/clang-test.cpp
+++ /dev/null
@@ -1,67 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include "clang.h"
-#include "clang-c.h"
-extern "C" {
-#include "../util.h"
-}
-#include "llvm/IR/Function.h"
-#include "llvm/IR/LLVMContext.h"
-
-#include <tests/llvm.h>
-#include <string>
-
-class perf_clang_scope {
-public:
- explicit perf_clang_scope() {perf_clang__init();}
- ~perf_clang_scope() {perf_clang__cleanup();}
-};
-
-static std::unique_ptr<llvm::Module>
-__test__clang_to_IR(void)
-{
- unsigned int kernel_version;
-
- if (fetch_kernel_version(&kernel_version, NULL, 0))
- return std::unique_ptr<llvm::Module>(nullptr);
-
- std::string cflag_kver("-DLINUX_VERSION_CODE=" +
- std::to_string(kernel_version));
-
- std::unique_ptr<llvm::Module> M =
- perf::getModuleFromSource({cflag_kver.c_str()},
- "perf-test.c",
- test_llvm__bpf_base_prog);
- return M;
-}
-
-extern "C" {
-int test__clang_to_IR(struct test_suite *test __maybe_unused,
- int subtest __maybe_unused)
-{
- perf_clang_scope _scope;
-
- auto M = __test__clang_to_IR();
- if (!M)
- return -1;
- for (llvm::Function& F : *M)
- if (F.getName() == "bpf_func__SyS_epoll_pwait")
- return 0;
- return -1;
-}
-
-int test__clang_to_obj(struct test_suite *test __maybe_unused,
- int subtest __maybe_unused)
-{
- perf_clang_scope _scope;
-
- auto M = __test__clang_to_IR();
- if (!M)
- return -1;
-
- auto Buffer = perf::getBPFObjectFromModule(&*M);
- if (!Buffer)
- return -1;
- return 0;
-}
-
-}
diff --git a/tools/perf/util/c++/clang.cpp b/tools/perf/util/c++/clang.cpp
deleted file mode 100644
index 1aad7d6d34aa..000000000000
--- a/tools/perf/util/c++/clang.cpp
+++ /dev/null
@@ -1,225 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * llvm C frontend for perf. Support dynamically compile C file
- *
- * Inspired by clang example code:
- * http://llvm.org/svn/llvm-project/cfe/trunk/examples/clang-interpreter/main.cpp
- *
- * Copyright (C) 2016 Wang Nan <wangnan0@huawei.com>
- * Copyright (C) 2016 Huawei Inc.
- */
-
-#include "clang/Basic/Version.h"
-#include "clang/CodeGen/CodeGenAction.h"
-#include "clang/Frontend/CompilerInvocation.h"
-#include "clang/Frontend/CompilerInstance.h"
-#include "clang/Frontend/TextDiagnosticPrinter.h"
-#include "clang/Tooling/Tooling.h"
-#include "llvm/IR/LegacyPassManager.h"
-#include "llvm/IR/Module.h"
-#include "llvm/Option/Option.h"
-#include "llvm/Support/FileSystem.h"
-#include "llvm/Support/ManagedStatic.h"
-#if CLANG_VERSION_MAJOR >= 14
-#include "llvm/MC/TargetRegistry.h"
-#else
-#include "llvm/Support/TargetRegistry.h"
-#endif
-#include "llvm/Support/TargetSelect.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetOptions.h"
-#include <memory>
-
-#include "clang.h"
-#include "clang-c.h"
-
-namespace perf {
-
-static std::unique_ptr<llvm::LLVMContext> LLVMCtx;
-
-using namespace clang;
-
-static CompilerInvocation *
-createCompilerInvocation(llvm::opt::ArgStringList CFlags, StringRef& Path,
- DiagnosticsEngine& Diags)
-{
- llvm::opt::ArgStringList CCArgs {
- "-cc1",
- "-triple", "bpf-pc-linux",
- "-fsyntax-only",
- "-O2",
- "-nostdsysteminc",
- "-nobuiltininc",
- "-vectorize-loops",
- "-vectorize-slp",
- "-Wno-unused-value",
- "-Wno-pointer-sign",
- "-x", "c"};
-
- CCArgs.append(CFlags.begin(), CFlags.end());
- CompilerInvocation *CI = tooling::newInvocation(&Diags, CCArgs
-#if CLANG_VERSION_MAJOR >= 11
- ,/*BinaryName=*/nullptr
-#endif
- );
-
- FrontendOptions& Opts = CI->getFrontendOpts();
- Opts.Inputs.clear();
- Opts.Inputs.emplace_back(Path,
- FrontendOptions::getInputKindForExtension("c"));
- return CI;
-}
-
-static std::unique_ptr<llvm::Module>
-getModuleFromSource(llvm::opt::ArgStringList CFlags,
- StringRef Path, IntrusiveRefCntPtr<vfs::FileSystem> VFS)
-{
- CompilerInstance Clang;
- Clang.createDiagnostics();
-
-#if CLANG_VERSION_MAJOR < 9
- Clang.setVirtualFileSystem(&*VFS);
-#else
- Clang.createFileManager(&*VFS);
-#endif
-
-#if CLANG_VERSION_MAJOR < 4
- IntrusiveRefCntPtr<CompilerInvocation> CI =
- createCompilerInvocation(std::move(CFlags), Path,
- Clang.getDiagnostics());
- Clang.setInvocation(&*CI);
-#else
- std::shared_ptr<CompilerInvocation> CI(
- createCompilerInvocation(std::move(CFlags), Path,
- Clang.getDiagnostics()));
- Clang.setInvocation(CI);
-#endif
-
- std::unique_ptr<CodeGenAction> Act(new EmitLLVMOnlyAction(&*LLVMCtx));
- if (!Clang.ExecuteAction(*Act))
- return std::unique_ptr<llvm::Module>(nullptr);
-
- return Act->takeModule();
-}
-
-std::unique_ptr<llvm::Module>
-getModuleFromSource(llvm::opt::ArgStringList CFlags,
- StringRef Name, StringRef Content)
-{
- using namespace vfs;
-
- llvm::IntrusiveRefCntPtr<OverlayFileSystem> OverlayFS(
- new OverlayFileSystem(getRealFileSystem()));
- llvm::IntrusiveRefCntPtr<InMemoryFileSystem> MemFS(
- new InMemoryFileSystem(true));
-
- /*
- * pushOverlay helps setting working dir for MemFS. Must call
- * before addFile.
- */
- OverlayFS->pushOverlay(MemFS);
- MemFS->addFile(Twine(Name), 0, llvm::MemoryBuffer::getMemBuffer(Content));
-
- return getModuleFromSource(std::move(CFlags), Name, OverlayFS);
-}
-
-std::unique_ptr<llvm::Module>
-getModuleFromSource(llvm::opt::ArgStringList CFlags, StringRef Path)
-{
- IntrusiveRefCntPtr<vfs::FileSystem> VFS(vfs::getRealFileSystem());
- return getModuleFromSource(std::move(CFlags), Path, VFS);
-}
-
-std::unique_ptr<llvm::SmallVectorImpl<char>>
-getBPFObjectFromModule(llvm::Module *Module)
-{
- using namespace llvm;
-
- std::string TargetTriple("bpf-pc-linux");
- std::string Error;
- const Target* Target = TargetRegistry::lookupTarget(TargetTriple, Error);
- if (!Target) {
- llvm::errs() << Error;
- return std::unique_ptr<llvm::SmallVectorImpl<char>>(nullptr);
- }
-
- llvm::TargetOptions Opt;
- TargetMachine *TargetMachine =
- Target->createTargetMachine(TargetTriple,
- "generic", "",
- Opt, Reloc::Static);
-
- Module->setDataLayout(TargetMachine->createDataLayout());
- Module->setTargetTriple(TargetTriple);
-
- std::unique_ptr<SmallVectorImpl<char>> Buffer(new SmallVector<char, 0>());
- raw_svector_ostream ostream(*Buffer);
-
- legacy::PassManager PM;
- bool NotAdded;
- NotAdded = TargetMachine->addPassesToEmitFile(PM, ostream
-#if CLANG_VERSION_MAJOR >= 7
- , /*DwoOut=*/nullptr
-#endif
-#if CLANG_VERSION_MAJOR < 10
- , TargetMachine::CGFT_ObjectFile
-#else
- , 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);
- }
- PM.run(*Module);
-
- return Buffer;
-}
-
-}
-
-extern "C" {
-void perf_clang__init(void)
-{
- perf::LLVMCtx.reset(new llvm::LLVMContext());
- LLVMInitializeBPFTargetInfo();
- LLVMInitializeBPFTarget();
- LLVMInitializeBPFTargetMC();
- LLVMInitializeBPFAsmPrinter();
-}
-
-void perf_clang__cleanup(void)
-{
- perf::LLVMCtx.reset(nullptr);
- llvm::llvm_shutdown();
-}
-
-int perf_clang__compile_bpf(const char *filename,
- void **p_obj_buf,
- size_t *p_obj_buf_sz)
-{
- using namespace perf;
-
- if (!p_obj_buf || !p_obj_buf_sz)
- return -EINVAL;
-
- llvm::opt::ArgStringList CFlags;
- auto M = getModuleFromSource(std::move(CFlags), filename);
- if (!M)
- return -EINVAL;
- auto O = getBPFObjectFromModule(&*M);
- if (!O)
- return -EINVAL;
-
- size_t size = O->size_in_bytes();
- void *buffer;
-
- buffer = malloc(size);
- if (!buffer)
- return -ENOMEM;
- memcpy(buffer, O->data(), size);
- *p_obj_buf = buffer;
- *p_obj_buf_sz = size;
- return 0;
-}
-}
diff --git a/tools/perf/util/c++/clang.h b/tools/perf/util/c++/clang.h
deleted file mode 100644
index 6ce33e22f23c..000000000000
--- a/tools/perf/util/c++/clang.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef PERF_UTIL_CLANG_H
-#define PERF_UTIL_CLANG_H
-
-#include "llvm/ADT/StringRef.h"
-#include "llvm/IR/LLVMContext.h"
-#include "llvm/IR/Module.h"
-#include "llvm/Option/Option.h"
-#include <memory>
-
-namespace perf {
-
-using namespace llvm;
-
-std::unique_ptr<Module>
-getModuleFromSource(opt::ArgStringList CFlags,
- StringRef Name, StringRef Content);
-
-std::unique_ptr<Module>
-getModuleFromSource(opt::ArgStringList CFlags,
- StringRef Path);
-
-std::unique_ptr<llvm::SmallVectorImpl<char>>
-getBPFObjectFromModule(llvm::Module *Module);
-
-}
-#endif