From 3795d80899369139ac88ba487af40e44b692df14 Mon Sep 17 00:00:00 2001
From: wuzheng <ken4647@outlook.com>
Date: Fri, 5 Jul 2024 20:30:58 +0800
Subject: [PATCH] add hello_world example for cpp

---
 apps/c/{cpp => cpp_benchmark}/.gitignore      |  0
 apps/c/{cpp => cpp_benchmark}/axbuild.mk      |  0
 apps/c/{cpp => cpp_benchmark}/features.txt    |  0
 .../std_benchmark.patch                       |  0
 apps/c/cpp_helloworld/axbuild.mk              | 20 +++++++++++++++++++
 apps/c/cpp_helloworld/features.txt            |  6 ++++++
 apps/c/cpp_helloworld/main.cpp                | 12 +++++++++++
 7 files changed, 38 insertions(+)
 rename apps/c/{cpp => cpp_benchmark}/.gitignore (100%)
 rename apps/c/{cpp => cpp_benchmark}/axbuild.mk (100%)
 rename apps/c/{cpp => cpp_benchmark}/features.txt (100%)
 rename apps/c/{cpp => cpp_benchmark}/std_benchmark.patch (100%)
 create mode 100644 apps/c/cpp_helloworld/axbuild.mk
 create mode 100644 apps/c/cpp_helloworld/features.txt
 create mode 100644 apps/c/cpp_helloworld/main.cpp

diff --git a/apps/c/cpp/.gitignore b/apps/c/cpp_benchmark/.gitignore
similarity index 100%
rename from apps/c/cpp/.gitignore
rename to apps/c/cpp_benchmark/.gitignore
diff --git a/apps/c/cpp/axbuild.mk b/apps/c/cpp_benchmark/axbuild.mk
similarity index 100%
rename from apps/c/cpp/axbuild.mk
rename to apps/c/cpp_benchmark/axbuild.mk
diff --git a/apps/c/cpp/features.txt b/apps/c/cpp_benchmark/features.txt
similarity index 100%
rename from apps/c/cpp/features.txt
rename to apps/c/cpp_benchmark/features.txt
diff --git a/apps/c/cpp/std_benchmark.patch b/apps/c/cpp_benchmark/std_benchmark.patch
similarity index 100%
rename from apps/c/cpp/std_benchmark.patch
rename to apps/c/cpp_benchmark/std_benchmark.patch
diff --git a/apps/c/cpp_helloworld/axbuild.mk b/apps/c/cpp_helloworld/axbuild.mk
new file mode 100644
index 000000000..402aefbec
--- /dev/null
+++ b/apps/c/cpp_helloworld/axbuild.mk
@@ -0,0 +1,20 @@
+ARCH ?= x86_64
+C_COMPILER := $(shell which $(CC))
+CXX_COMPILER := $(shell which $(CC))
+AR := $(shell which $(AR))
+RANLIB := $(shell which $(RANLIB))
+CROSS_COMPILE_PATH := $(shell dirname $(C_COMPILER))/..
+
+app-objs := main.o
+
+$(APP)/$(app-objs): $(APP)/axbuild.mk
+	$(CXX_COMPILER) -c -o $(app-objs) $(APP)/main.cpp
+	$(LD) -o $(app-objs) -nostdlib -static -no-pie -r -e main \
+		$(app-objs) \
+		$(CROSS_COMPILE_PATH)/*-linux-musl/lib/libstdc++.a \
+		$(CROSS_COMPILE_PATH)/lib/gcc/*-linux-musl/*/libgcc_eh.a
+
+clean_c::
+	rm -rf $(APP)/$(app-objs) 
+
+.PHONY: $(APP)/$(app-objs) clean_c
diff --git a/apps/c/cpp_helloworld/features.txt b/apps/c/cpp_helloworld/features.txt
new file mode 100644
index 000000000..662a64968
--- /dev/null
+++ b/apps/c/cpp_helloworld/features.txt
@@ -0,0 +1,6 @@
+alloc
+paging
+irq
+multitask
+fs
+random-hw
diff --git a/apps/c/cpp_helloworld/main.cpp b/apps/c/cpp_helloworld/main.cpp
new file mode 100644
index 000000000..9a69aca63
--- /dev/null
+++ b/apps/c/cpp_helloworld/main.cpp
@@ -0,0 +1,12 @@
+#include <iostream>
+
+using namespace std;
+
+// This is a dummy function to avoid linker errors as this example should be a static executable.
+void* __dso_handle = NULL;
+
+int main(int argc, char* argv[]) {
+	cout << "Hello, wolrd!" << endl;
+	return 0;
+}
+