bazel编译C++

一、bazel编译成single target

（1）文件目录

WORKSPACE
main
        BUILD
        print.h
        print.cpp
        demo.cpp

（2）文件内容

BUILD

cc_library(
    name = "print_h",
    hdrs = ["print.h"],
)
cc_binary(
    name = "demo",
    srcs = ["demo.cpp", "print.cpp"],
    deps = ["print_h"],
)

print.h

#include
void print(void);

print.cpp

#include "print.h"
void print() {
    printf("hello world\n");
}

demo.cpp

#include "print.h"
#include 
int main(int argc, char* argv[]) {
    print();
    return 0;
}

（3）编译命令

bazel build //main:demo

二、bazel编译成multi target

（1）文件目录

WORKSPACE
main
    BUILD
    print.h
    print.cpp
    demo.cpp

（2）文件内容

BUILD

cc_library(
    name="print",
    srcs=["print.cpp"],
    hdrs=["print.h"],
)
cc_binary(
    name="demo",
    srcs=["demo.cpp"],
    deps=[":print"],
)

print.h

#include
void print(void);

print.cpp

#include "print.h"
void print() {
    printf("hello world\n");
}

demo.cpp

#include "print.h"
#include 
int main(int argc, char* argv[]) {
    print();
    return 0;
}

（3）编译命令

bazel build //main:demo

三、bazel编译成multi package

（1）文件目录

WORKSPACE
lib
    BUILD
    print.h
    print.cpp
main
    BUILD
    demo.cpp

（2）文件内容

lib

BUILD

cc_library(
    name = "print",
    srcs = ["print.cpp"],
    hdrs = ["print.h"],
    visibility = ["//main:__pkg__"],
)

print.h

#include
void print(void);

print.cpp

#include "print.h"
void print() {
    printf("hello world\n");
}

main

BUILD

cc_binary(
    name="demo",
    srcs=["demo.cpp"],
    deps=["://lib:print"],
)

demo.cpp

#include "print.h"
#include 
int main(int argc, char* argv[]) {
    print();
    return 0;
}

（3）编译命令

bazel build //main:demo

四、bazel编译成静态库（.a文件）

1）文件目录

WORKSPACE
lib
    BUILD
    print.h
    print.cpp

（2）文件内容

lib

BUILD

cc_library(
        name="print",
        srcs=["print.h","print.cpp"],
        linkstatic=True
)

print.h

#include
void print(void);

print.cpp

#include "print.h"
void print() {
    printf("hello world\n");
}

（3）编译命令

bazel build //main:print

生成静态库 libprint.a

五、bazel编译调用静态库（.a文件）

（1）文件目录

WORKSPACE
main
    BUILD
    print.h
    libprint.a
    demo.cpp

（2）文件内容

main

BUILD

cc_import(
        name="print",
        hdrs=["print.h"],
        static_library="libprint.a",
)
cc_binary(
        name="demo",
        srcs=["demo.cpp"],
        deps=[":print"]
)

print.h

#include
void print(void);

demo.cpp

#include "print.h"
#include 
int main(int argc, char* argv[]) {
    print();
    return 0;
}

六、bazel编译成动态库（.so文件）

1）文件目录

WORKSPACE
lib
    BUILD
    print.h
    print.cpp

（2）文件内容

lib

BUILD

cc_library(
        name="libprint.so",
        srcs=["print.h","print.cpp"],
        linkshared=True
)

print.h

#include
void print(void);

print.cpp

#include "print.h"
void print() {
    printf("hello world\n");
}

（3）编译命令

bazel build //main:libprint.so

生成动态库 libprint.so

七、bazel编译调用动态库（.so文件）

（1）文件目录

WORKSPACE
main
    BUILD
    print.h
    libprint.so
    demo.cpp

（2）文件内容

main

BUILD

cc_import(
        name="print",
        hdrs=["print.h"],
        shared_library="libprint.so"
)
cc_binary(
        name="demo",
        srcs=["demo.cpp"],
        deps=[":print"]
)

print.h

#include
void print(void);

demo.cpp

#include "print.h"
#include 
int main(int argc, char* argv[]) {
    print();
    return 0;
}

（3）编译命令

bazel build //main:demo