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-rw-r--r--tools/build/feature/Makefile9
-rw-r--r--tools/build/feature/test-clang-bpf-global-var.c4
2 files changed, 12 insertions, 1 deletions
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 7ac0d8088565..ab8e89a7009c 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -67,7 +67,8 @@ FILES= \
test-llvm.bin \
test-llvm-version.bin \
test-libaio.bin \
- test-libzstd.bin
+ test-libzstd.bin \
+ test-clang-bpf-global-var.bin
FILES := $(addprefix $(OUTPUT),$(FILES))
@@ -75,6 +76,7 @@ CC ?= $(CROSS_COMPILE)gcc
CXX ?= $(CROSS_COMPILE)g++
PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config
LLVM_CONFIG ?= llvm-config
+CLANG ?= clang
all: $(FILES)
@@ -321,6 +323,11 @@ $(OUTPUT)test-libaio.bin:
$(OUTPUT)test-libzstd.bin:
$(BUILD) -lzstd
+$(OUTPUT)test-clang-bpf-global-var.bin:
+ $(CLANG) -S -g -target bpf -o - $(patsubst %.bin,%.c,$(@F)) | \
+ grep BTF_KIND_VAR
+
+
###############################
clean:
diff --git a/tools/build/feature/test-clang-bpf-global-var.c b/tools/build/feature/test-clang-bpf-global-var.c
new file mode 100644
index 000000000000..221f1481d52e
--- /dev/null
+++ b/tools/build/feature/test-clang-bpf-global-var.c
@@ -0,0 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+volatile int global_value_for_test = 1;