完善libc，构建了OS-specific工具链，编译了基于gcc-11.3.0的DragonOS userland compiler，移植了mpfr,gmp,mpc库 (#134)

* 修改include路径

* 添加了创建libsysapi.a和/bin/sysroot/usr/include/+lib/的代码

* 修补.gitignore

* 删除多余项

* 优化脚本可读性

* 新增crt0 crti crtn

* 编译binutils所需的东西

* fflush()和fprintf()的简单实现

* 应用程序启动前，调用初始化libc的函数

* 自动创建sysroot

* 添加了stderr的初始化

* 修改了stderr的初始化

* 内核添加对stdio的简略处理

* 格式化代码

* 修正打开stdio文件描述符的问题

* bugfix: 修复fprintf忘记释放buf的问题

* 修复shell错误地把入口设置为main而不是_start的问题

* 新增__cxa_atexit  (gcc要求libc提供这个）

* 增加putchar puts

* 更新写入磁盘镜像的脚本，默认无参数时，使用legacy方式安装

* 更新编译脚本

* stdio增加eof的定义

* 新增extern cplusplus

* mpfr gmp mpc 构建脚本

* 更新libsysapi.a为libc.a

* 加上ferror fopen fclose

* 更新移植的软件的构建脚本

* 更改build_gcc_toolchain.sh中的-save参数名为-save-cache

Co-authored-by: longjin <longjin@RinGoTek.cn>

user/Makefile

@@ -2,7 +2,7 @@ user_sub_dirs = apps
 
 SUBDIR_ROOTS := . 
 DIRS := . $(shell find $(SUBDIR_ROOTS) -type d)
-GARBAGE_PATTERNS := *.o *.s~ *.s *.S~ *.c~ *.h~ sys_api_lib
+GARBAGE_PATTERNS := *.o *.s~ *.s *.S~ *.c~ *.h~ sys_api_lib *.a
 GARBAGE := $(foreach DIR,$(DIRS),$(addprefix $(DIR)/,$(GARBAGE_PATTERNS)))
 
 
@@ -22,16 +22,32 @@ $(user_sub_dirs): ECHO sys_api_lib
 app: $(user_sub_dirs)
 
 all: app
+
 	$(shell if [ ! -e $(tmp_output_dir) ];then mkdir -p $(tmp_output_dir); fi)
 	$(shell if [ ! -e $(output_dir) ];then mkdir -p $(output_dir); fi)
 
 	@echo 用户态程序编译完成
 
+make_output_dir: ECHO
+	mkdir -p $(ROOT_PATH)/bin/user/
+	mkdir -p $(ROOT_PATH)/bin/tmp/user
+	mkdir -p $(ROOT_PATH)/bin/sysroot/usr/include
+	mkdir -p $(ROOT_PATH)/bin/sysroot/usr/lib
+
+	$(shell if [ ! -e $(tmp_output_dir) ];then mkdir -p $(tmp_output_dir); fi)
+	$(shell if [ ! -e $(output_dir) ];then mkdir -p $(output_dir); fi)
 # 系统库
-sys_api_lib:
+
+sys_api_lib_stage_1: make_output_dir
+	@echo Building sys_api_lib...
 	$(MAKE) -C libs all CFLAGS="$(CFLAGS)" tmp_output_dir="$(tmp_output_dir)" output_dir="$(output_dir)" sys_libs_dir="$(shell pwd)/libs"
+	
 
-
+sys_api_lib: sys_api_lib_stage_1
+	$(AR) crvs $(ROOT_PATH)/bin/sysroot/usr/lib/libc.a $(shell find ./libs/* -name "*.o")
+	$(shell find ./libs/* -name "*.o" | xargs -I {} cp {} $(ROOT_PATH)/bin/sysroot/usr/lib/)
+	$(shell cp -r $(ROOT_PATH)/user/libs/libc/src/include/* $(ROOT_PATH)/bin/sysroot/usr/include/)
+	$(shell cp -r $(ROOT_PATH)/user/libs/libc/src/arch/x86_64/c*.o $(ROOT_PATH)/bin/sysroot/usr/lib/)
 
 clean: 
 	rm -rf $(GARBAGE)

user/apps/shell/shell.lds

@@ -1,7 +1,7 @@
 
 OUTPUT_FORMAT("elf64-x86-64","elf64-x86-64","elf64-x86-64")
 OUTPUT_ARCH(i386:x86-64)
-ENTRY(main)
+ENTRY(_start)
 
 SECTIONS
 {

user/libs/libc/src/Makefile

@@ -8,9 +8,12 @@ CFLAGS += -I .
 libc_sub_dirs=math sys
 
 ifeq ($(ARCH), __x86_64__)
-libc_sub_dirs += sysdeps/x86_64
+libc_sub_dirs += arch/x86_64
 endif
 
+$(libc_sub_dirs): ECHO
+	$(MAKE) -C $@ all CFLAGS="$(CFLAGS)" ASFLAGS="$(ASFLAGS) -I $(shell pwd)"
+
 libc_objs:= $(shell find ./*.c)
 
 ECHO:
@@ -29,13 +32,7 @@ clean:
 		cd .. ;\
 	done
 
-libc: $(libc_objs) libc_rust
-	@list='$(libc_sub_dirs)'; for subdir in $$list; do \
-    		echo "make all in $$subdir";\
-    		cd $$subdir;\
-    		$(MAKE) all CFLAGS="$(CFLAGS) -I $(shell pwd)";\
-    		cd ..;\
-	done
+libc: $(libc_objs) $(libc_sub_dirs) libc_rust
 
 libc_rust:
 	rustup default nightly

user/libs/libc/src/arch/x86_64/Makefile

@@ -0,0 +1,23 @@
+libc_arch_objs:= $(shell find ./*.c)
+
+ECHO:
+	@echo "$@"
+
+
+$(libc_arch_objs): ECHO
+	$(CC) $(CFLAGS) -c $@ -o $@.o
+
+all: $(libc_arch_objs) crti.o crtn.o
+	mv crt0.c.o crt0.o
+
+crti.o: crti.S
+	$(CC) -E crti.S > _crti.s # 预处理
+	$(AS) $(ASFLAGS) -o crti.o _crti.s
+
+crtn.o: crtn.S
+	$(CC) -E crtn.S > _crtn.s # 预处理
+	$(AS) $(ASFLAGS) -o crtn.o _crtn.s
+
+clean:
+	
+	echo "Done."

user/libs/libc/src/arch/x86_64/crt0.c

@@ -3,11 +3,14 @@
 #include <stdlib.h>
 
 extern int main(int, char **);
+extern void _init();
+extern void _libc_init();
 
 void _start(int argc, char **argv)
 {
-    // printf("before main\n");
+    // Run the global constructors.
+    _init();
+    _libc_init();
     int retval = main(argc, argv);
-    // printf("before exit, code=%d\n", retval);
     exit(retval);
 }

user/libs/libc/src/arch/x86_64/crti.S

@@ -0,0 +1,13 @@
+.section .init
+.global _init
+_init:
+   push %rbp
+   movq %rsp, %rbp
+   /* gcc will nicely put the contents of crtbegin.o's .init section here. */
+
+.section .fini
+.global _fini
+_fini:
+   push %rbp
+   movq %rsp, %rbp
+   /* gcc will nicely put the contents of crtbegin.o's .fini section here. */

user/libs/libc/src/arch/x86_64/crtn.S

@@ -0,0 +1,9 @@
+.section .init
+   /* gcc will nicely put the contents of crtend.o's .init section here. */
+   popq %rbp
+   ret
+
+.section .fini
+   /* gcc will nicely put the contents of crtend.o's .fini section here. */
+   popq %rbp
+   ret

user/libs/libc/src/cxa.c

@@ -0,0 +1,8 @@
+/* Register a function to be called by exit or when a shared library
+   is unloaded.  This function is only called from code generated by
+   the C++ compiler.  */
+int __cxa_atexit(void (*func)(void *), void *arg, void *d)
+{
+    // todo: 使用rust实现这个函数。参考：http://redox.longjin666.cn/xref/relibc/src/cxa.rs?r=c7d499d4&mo=323&fi=15#15
+    return 0;
+}

user/libs/libc/src/include/ctype.h

@@ -6,19 +6,22 @@
 
 #include <__libc__.h>
 
-
-int isalnum(int c);
+ 
+#if defined(__cplusplus) 
+extern  "C"  { 
+#endif
+// int isalnum(int c);
 int isalpha(int c);
 int isdigit(int c);
 int islower(int c);
 int isprint(int c);
-int isgraph(int c);
-int iscntrl(int c);
-int isgraph(int c);
-int ispunct(int c);
+// int isgraph(int c);
+// int iscntrl(int c);
+// int isgraph(int c);
+// int ispunct(int c);
 int isspace(int c);
 int isupper(int c);
-int isxdigit(int c);
+// int isxdigit(int c);
 
 int isascii(int c);
 
@@ -36,3 +39,6 @@ int toupper(int c);
 
 extern char _ctype_[256];
 
+#if defined(__cplusplus) 
+}  /* extern "C" */ 
+#endif

user/libs/libc/src/include/dirent.h

@@ -1,6 +1,9 @@
 #pragma once
 #include <sys/types.h>
 
+#if defined(__cplusplus) 
+extern  "C"  { 
+#endif
 
 /**
  * @brief inode的属性（copy from vfs.h）
@@ -63,4 +66,8 @@ int closedir(struct DIR *dirp);
  * @param dir 
  * @return struct dirent* 
  */
-struct dirent* readdir(struct DIR* dir);
+struct dirent* readdir(struct DIR* dir);
+
+#if defined(__cplusplus) 
+}  /* extern "C" */ 
+#endif

user/libs/libc/src/include/errno.h

@@ -10,6 +10,10 @@
  */
 #pragma once
 
+#if defined(__cplusplus) 
+extern  "C"  { 
+#endif
+
 #define E2BIG 1            /* 参数列表过长，或者在输出buffer中缺少空间 或者参数比系统内建的最大值要大 Argument list too long. */
 #define EACCES 2           /* 访问被拒绝 Permission denied */
 #define EADDRINUSE 3       /* 地址正在被使用 Address in use.*/
@@ -100,4 +104,8 @@
 #define EWOULDBLOCK 80     /* 操作将被禁止 Operation would block (may be the same value as [EAGAIN]). */
 #define EXDEV 81           /* 跨设备连接 Cross-device link. */
 
-extern int errno;
+extern int errno;
+
+#if defined(__cplusplus) 
+}  /* extern "C" */ 
+#endif

user/libs/libc/src/include/fcntl.h

@@ -10,6 +10,10 @@
  */
 #pragma once
 
+#if defined(__cplusplus) 
+extern  "C"  { 
+#endif
+
 #define O_RDONLY 00000000 // Open Read-only
 #define O_WRONLY 00000001 // Open Write-only
 #define O_RDWR 00000002   // Open read/write
@@ -62,4 +66,8 @@
  * @param ... 
  * @return int 文件描述符
  */
-int open(const char * path, int options, ...);
+int open(const char * path, int options, ...);
+
+#if defined(__cplusplus) 
+}  /* extern "C" */ 
+#endif

user/libs/libc/src/include/libm.h

@@ -1,6 +1,10 @@
 #pragma once
 #include <sys/types.h>
 
+#if defined(__cplusplus) 
+extern  "C"  { 
+#endif
+
 // ===== 描述long double 的数据比特结构
 #if __LDBL_MANT_DIG__ == 53 && __LDBL_MAX_EXP__ == 1024
 #elif __LDBL_MANT_DIG__ == 64 && __LDBL_MAX_EXP__ == 16384 && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
@@ -73,3 +77,7 @@ union ldshape
             (void)__x;                        \
         }                                     \
     } while (0)
+
+#if defined(__cplusplus) 
+}  /* extern "C" */ 
+#endif

user/libs/libc/src/include/math.h

@@ -1,12 +1,20 @@
 #pragma once
 #include <stddef.h>
 
+#if defined(__cplusplus) 
+extern  "C"  { 
+#endif
+
 double fabs(double x);
-float fabsf(float x);
+// float fabsf(float x);
 long double fabsl(long double x);
 
 double round(double x);
 float roundf(float x);
 long double roundl(long double x);
 
-int64_t pow(int64_t x, int y);
+int64_t pow(int64_t x, int y);
+
+#if defined(__cplusplus) 
+}  /* extern "C" */ 
+#endif

user/libs/libc/src/include/printf.h

@@ -1,5 +1,8 @@
 #pragma once
 
+#if defined(__cplusplus) 
+extern  "C"  { 
+#endif
 
 #define PAD_ZERO 1 // 0填充
 #define LEFT 2     // 靠左对齐
@@ -10,4 +13,8 @@
 #define SMALL 64   // 十进制以上数字显示小写字母
 #define SIGN 128   // 显示符号位
 
-#define is_digit(c) ((c) >= '0' && (c) <= '9') // 用来判断是否是数字的宏
+#define is_digit(c) ((c) >= '0' && (c) <= '9') // 用来判断是否是数字的宏
+
+#if defined(__cplusplus) 
+}  /* extern "C" */ 
+#endif

user/libs/libc/src/include/signal.h

@@ -1,6 +1,10 @@
 #pragma once
 #include <unistd.h>
 
+#if defined(__cplusplus) 
+extern  "C"  { 
+#endif
+
 #define SIGHUP 1
 #define SIGINT 2
 #define SIGQUIT 3
@@ -91,4 +95,8 @@ struct sigaction
 int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact);
 int signal(int signum, __sighandler_t handler);
 int raise(int sig);
-int kill(pid_t, int sig);
+int kill(pid_t, int sig);
+
+#if defined(__cplusplus) 
+}  /* extern "C" */ 
+#endif

user/libs/libc/src/include/stddef.h

@@ -8,6 +8,12 @@
    #define NULL ((void *)0)
 #endif
 
+#if defined(__cplusplus) 
+extern  "C"  { 
+#endif
 
 typedef __PTRDIFF_TYPE__ ptrdiff_t; // Signed integer type of the result of subtracting two pointers.
 
+#if defined(__cplusplus) 
+}  /* extern "C" */ 
+#endif

user/libs/libc/src/include/stdio.h

@@ -3,6 +3,10 @@
 #include <sys/types.h>
 #include <stdarg.h>
 
+#if defined(__cplusplus) 
+extern  "C"  { 
+#endif
+
 // 字体颜色的宏定义
 #define COLOR_WHITE 0x00ffffff  //白
 #define COLOR_BLACK 0x00000000  //黑
@@ -20,6 +24,18 @@
 
 #define SEEK_MAX 3
 
+/* The value returned by fgetc and similar functions to indicate the
+   end of the file.  */
+#define EOF (-1)
+
+typedef struct {
+    int fd;  // 文件描述符
+} FILE;
+
+extern FILE* stdin;
+extern FILE* stdout;
+extern FILE* stderr;
+
 /**
  * @brief 往屏幕上输出字符串
  *
@@ -32,4 +48,16 @@ int64_t put_string(char *str, uint64_t front_color, uint64_t bg_color);
 
 int printf(const char *fmt, ...);
 int sprintf(char *buf, const char *fmt, ...);
-int vsprintf(char *buf, const char *fmt, va_list args);
+int vsprintf(char *buf, const char *fmt, va_list args);
+
+int fflush(FILE *stream);
+int fprintf(FILE *restrict stream, const char *restrict format, ...);
+int ferror(FILE *stream);
+FILE *fopen(const char *restrict pathname, const char *restrict mode);
+int fclose(FILE *stream);
+int puts(const char *s);
+int putchar(int c);
+
+#if defined(__cplusplus) 
+}  /* extern "C" */ 
+#endif

user/libs/libc/src/include/stdlib.h

@@ -1,6 +1,10 @@
 #pragma once
 #include <sys/types.h>
 
+#if defined(__cplusplus) 
+extern  "C"  { 
+#endif
+
 /**
  * @brief 获取一块堆内存
  * 
@@ -45,4 +49,8 @@ void exit(int status);
  * @brief 通过发送SIGABRT，从而退出当前进程
  * 
  */
-void abort();
+void abort();
+
+#if defined(__cplusplus) 
+}  /* extern "C" */ 
+#endif

user/libs/libc/src/include/string.h

@@ -2,6 +2,10 @@
 
 #include <sys/types.h>
 
+#if defined(__cplusplus) 
+extern  "C"  { 
+#endif
+
 void *memset(void *dst, unsigned char C, uint64_t size);
 /**
  * @brief 获取字符串的大小
@@ -76,4 +80,8 @@ static void *memcpy(void *dst, const void *src, long Num)
                          : "0"(Num / 8), "q"(Num), "1"(dst), "2"(src)
                          : "memory");
     return dst;
-}
+}
+
+#if defined(__cplusplus) 
+}  /* extern "C" */ 
+#endif

user/libs/libc/src/include/time.h

@@ -2,6 +2,10 @@
 
 #include <stddef.h>
 
+#if defined(__cplusplus) 
+extern  "C"  { 
+#endif
+
 // 操作系统定义时间以ns为单位
 #define CLOCKS_PER_SEC 1000000
 
@@ -42,4 +46,8 @@ int nanosleep(const struct timespec *rqtp, struct timespec *rmtp);
  * 
  * @return clock_t 
  */
-clock_t clock();
+clock_t clock();
+
+#if defined(__cplusplus) 
+}  /* extern "C" */ 
+#endif

user/libs/libc/src/include/unistd.h

@@ -2,6 +2,10 @@
 #include <stdint.h>
 #include <sys/types.h>
 
+#if defined(__cplusplus) 
+extern  "C"  { 
+#endif
+
 /**
  * @brief 关闭文件接口
  *
@@ -116,4 +120,8 @@ int rm(const char * path);
  */
 void swab(void *restrict src, void *restrict dest, ssize_t nbytes);
 
-pid_t getpid(void);
+pid_t getpid(void);
+
+#if defined(__cplusplus) 
+}  /* extern "C" */ 
+#endif

user/libs/libc/src/libc_init.c

@@ -0,0 +1,18 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+FILE *stdin;
+FILE *stdout;
+FILE *stderr;
+
+void _libc_init()
+{
+    // 初始化标准流对应的文件描述符
+    stdin = malloc(sizeof(FILE));
+    stdout = malloc(sizeof(FILE));
+    stderr = malloc(sizeof(FILE));
+
+    stdin->fd = 0;
+    stdout->fd = 1;
+    stderr->fd = 2;
+}

user/libs/libc/src/stdio.c

@@ -0,0 +1,69 @@
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+int fprintf(FILE *restrict stream, const char *restrict format, ...)
+{
+    const int bufsize = 65536 * 2;
+    char *buf = malloc(bufsize);
+    memset(buf, 0, bufsize);
+    va_list args;
+
+    va_start(args, format);
+    vsprintf(buf, format, args);
+    va_end(args);
+
+    int len = strlen(buf);
+    if (len > bufsize - 1)
+    {
+        len = bufsize - 1;
+        buf[bufsize - 1] = 0;
+    }
+    write(stream->fd, buf, len);
+    free(buf);
+}
+
+int puts(const char *s)
+{
+    return put_string(s, COLOR_WHITE, COLOR_BLACK);
+}
+
+int putchar(int c)
+{
+    return printf("%c", (char)c);
+}
+
+int fflush(FILE *stream)
+{
+    return 0;
+}
+
+int ferror(FILE *stream)
+{
+    return 0;
+}
+
+int fclose(FILE *stream)
+{
+    if (stream->fd >= 3)
+    {
+        int retcval = close(stream);
+        free(stream);
+        return;
+    }
+    else
+        return 0;
+}
+
+FILE *fopen(const char *restrict pathname, const char *restrict mode)
+{
+    FILE *stream = malloc(sizeof(FILE));
+    memset(stream, 0, sizeof(FILE));
+
+    int fd = open(pathname, mode);
+    if (fd >= 0)
+        stream->fd = fd;
+    return stream;
+}

user/libs/libc/src/stdlib.c

@@ -4,6 +4,8 @@
 #include <libsystem/syscall.h>
 #include <signal.h>
 
+extern void _fini();
+
 int abs(int i)
 {
     return i < 0 ? -i : i;
@@ -54,6 +56,7 @@ int atoi(const char *str)
  */
 void exit(int status)
 {
+    _fini();
     syscall_invoke(SYS_EXIT, status, 0, 0, 0, 0, 0, 0, 0);
 }
 

user/libs/libc/src/sysdeps/x86_64/Makefile

@@ -1,12 +0,0 @@
-
-
-all: start.o
-
-ifeq ($(ARCH), __x86_64__)
-start.o:
-	$(CC) $(CFLAGS) -c elf/start.c -o elf/start.o
-endif
-
-clean:
-	
-	echo "Done."

user/port/README.md

@@ -0,0 +1,15 @@
+# port目录
+---
+
+本目录移植到DragonOS的应用程序。
+
+可以包含以下类型的文件：
+
+- 移植的patch，以及编译脚本、编译用的Dockerfile等
+- 把子目录作为git仓库的submodule
+
+## 注意
+
+编译好libc之后，要把sysroot/usr/lib的文件，复制到$HOME/opt/dragonos-host-userspace/x86_64-dragonos/lib. 因为ld会从这里面找链接的东西。
+
+目前由于DragonOS的libc还不完善，所以尚未能使用用户态交叉编译器来编译flex。

user/port/binutils/2.38/.gitignore

@@ -0,0 +1 @@
+build-binutils/

user/port/binutils/2.38/Dockerfile

@@ -0,0 +1,41 @@
+# 本Dockerfile用于构建binutils 2.38的交叉编译环境
+
+FROM ubuntu:jammy
+
+# Install dependencies
+RUN apt-get update && apt-get install -y \
+    autoconf2.69 \
+    automake \
+    bison \
+    build-essential \
+    flex \
+    gawk \
+    gettext \
+    git \
+    libgmp-dev \
+    libmpc-dev \
+    libmpfr-dev \
+    libncurses5-dev \
+    libtool \
+    m4 \
+    make \
+    ninja-build \
+    python3 \
+    texinfo \
+    wget \
+    xz-utils \
+    zlib1g-dev \
+    wget \
+    && rm /usr/bin/autoconf && ln -s /usr/bin/autoconf2.69 /usr/bin/autoconf
+
+WORKDIR /opt
+
+# download automake 1.15.1
+RUN wget http://mirrors.ustc.edu.cn/gnu/automake/automake-1.15.1.tar.xz && \
+    tar -xvf automake-1.15.1.tar.xz && \
+    cd automake-1.15.1 && \
+    ./configure --prefix=/usr && \
+    make && \
+    make install && \
+    cd .. && \
+    rm -rf automake-1.15.1 automake-1.15.1.tar.xz

user/port/binutils/2.38/README.md

@@ -0,0 +1,25 @@
+# binutils-2.38
+
+## 说明
+
+这里是移植到用户态的binutils-2.38，用于DragonOS的用户态编译器。在编译这里之前，请先在项目根目录下运行`make -j $(nproc)`, 以确保编译binutils所依赖的依赖库已经编译好。
+
+先修改build.sh中的路径，配置好需要的信息，再使用以下命令，即可开始编译：
+
+```bash
+bash build.sh
+```
+
+--- 
+
+请注意，如果您要修改binutils的代码，请先使用以下命令，构建编辑binutils代码配置的环境：
+
+```bash
+docker build --no-cache -t dragonos-binutils-build .
+```
+
+然后再在binutils目录下执行以下命令，进入容器：
+
+```bash
+docker run --rm -it -v $PWD:/workdir -w /workdir dragonos-binutils-build
+```

user/port/binutils/2.38/build.sh

@@ -0,0 +1,42 @@
+# 编译前请先设置参数
+sys_root=$DRAGONOS_SYSROOT
+binutils_path=请填写binutils的路径
+
+# 要安装到的目录
+PREFIX=$HOME/opt/dragonos-host-userspace
+
+
+if [ ! -d ${binutils_path} ]; then
+    echo "Error: ${binutils_path} not found"
+    exit 1
+fi
+
+if [ ! -d ${sysroot} ]; then
+    echo "Error: ${sysroot} not found"
+    exit 1
+fi
+
+
+mkdir -p build-binutils || exit 1
+mkdir -p ${PREFIX} || exit 1
+
+# 安装依赖
+# 注意texinfo和binutils的版本是否匹配
+# 注意gmp/mpc/mpfr和gcc/g++的版本是否匹配
+sudo apt-get install -y \
+    g++ \
+    gcc \
+    make \
+    texinfo \
+    libgmp3-dev \
+    libmpc-dev \
+    libmpfr-dev \
+    flex \
+    wget
+
+cd build-binutils
+${binutils_path}/configure --prefix=${PREFIX} --target=x86_64-dragonos --with-sysroot=${sysroot} --disable-werror || exit 1
+make -j $(nproc) || exit 1
+make install || exit 1
+make clean || exit 1
+rm -rf build-binutils

user/port/binutils/2.38/run.sh

@@ -0,0 +1 @@
+docker run --rm -it -v $PWD:/workdir -w /workdir binutils-2.38

user/port/build.sh

@@ -0,0 +1,17 @@
+source pkg-config.sh
+path=(
+    gmp/6.2.1
+    mpfr/4.1.1
+    mpc/1.2.1
+    flex/2.6.4
+)
+
+current_path=$(pwd)
+
+for i in ${path[@]}; do
+    echo "Building $i"
+    cd $i
+    ./build.sh || exit 1
+    cd $current_path
+done
+cd $current_path

user/port/flex/2.6.4/.gitignore

@@ -0,0 +1 @@
+build/

user/port/flex/2.6.4/build.sh

@@ -0,0 +1,37 @@
+
+# 编译前请先设置参数
+sys_root=$DRAGONOS_SYSROOT
+src_path=请填写flex的路径
+
+current_path=$(pwd)
+# 要安装到的目录
+PREFIX=/usr
+
+
+if [ ! -d ${src_path} ]; then
+    echo "Error: ${src_path} not found"
+    exit 1
+fi
+
+if [ ! -d ${sysroot} ]; then
+    echo "Error: ${sysroot} not found"
+    exit 1
+fi
+
+cd ${src_path}
+autoreconf --install
+autoconf
+sed -i 's/ios[*]/ios* | dragonos* /' build-aux/config.sub
+
+cd ${current_path}
+
+mkdir -p build || exit 1
+mkdir -p ${PREFIX} || exit 1
+
+cd build
+${src_path}/configure --prefix=${PREFIX} --host=x86_64-dragonos || exit 1
+make -j $(nproc) || exit 1
+make DESTDIR=${sys_root} install|| exit 1
+make clean
+cd ..
+rm -rf build

user/port/gcc/11.3.0/.gitignore

@@ -0,0 +1 @@
+build-gcc/

user/port/gcc/11.3.0/build-hosted.sh

@@ -0,0 +1,51 @@
+##############################################
+# DragonOS hosted gcc build script
+#
+# This script is used to build userland gcc for DragonOS（Running on Linux)
+##############################################
+
+# 编译前请先设置参数
+sys_root=$DRAGONOS_SYSROOT
+gcc_path=请填写gcc的路径
+
+# 要安装到的目录
+PREFIX=$HOME/opt/dragonos-host-userspace
+
+
+if [ ! -d ${gcc_path} ]; then
+    echo "Error: ${gcc_path} not found"
+    exit 1
+fi
+
+if [ ! -d ${sysroot} ]; then
+    echo "Error: ${sysroot} not found"
+    exit 1
+fi
+
+# 安装依赖
+# 注意texinfo和binutils的版本是否匹配
+# 注意gmp/mpc/mpfr和gcc/g++的版本是否匹配
+sudo apt-get install -y \
+    g++ \
+    gcc \
+    make \
+    texinfo \
+    libgmp3-dev \
+    libmpc-dev \
+    libmpfr-dev \
+    flex \
+    wget
+
+mkdir -p build-gcc || exit 1
+mkdir -p ${PREFIX} || exit 1
+
+cd build-gcc
+${gcc_path}/configure --prefix=${PREFIX} --target=x86_64-dragonos --with-sysroot=${sysroot} --disable-werror --disable-shared --disable-bootstrap --enable-languages=c,c++ || exit 1
+make all-gcc all-target-libgcc -j $(nproc) || exit 1
+make install-gcc install-target-libgcc -j $(nproc)  || exit 1
+# 这里会报错，暂时不知道为什么
+# make all-target-libstdc++-v3 -j $(nproc) || exit 1
+# make install-target-libstdc++-v3 -j $(nproc) || exit 1
+make clean
+cd ..
+rm -rf build-gcc

user/port/gmp/6.2.1/build.sh

@@ -0,0 +1,28 @@
+# 编译前请先设置参数
+sys_root=$DRAGONOS_SYSROOT
+gmp_path=请填写gmp的路径
+
+# 要安装到的目录
+PREFIX=/usr
+
+
+if [ ! -d ${gmp_path} ]; then
+    echo "Error: ${gmp_path} not found"
+    exit 1
+fi
+
+if [ ! -d ${sysroot} ]; then
+    echo "Error: ${sysroot} not found"
+    exit 1
+fi
+
+mkdir -p build-gmp || exit 1
+mkdir -p ${PREFIX} || exit 1
+
+cd build-gmp
+${gmp_path}/configure --prefix=${PREFIX} --host=x86_64-dragonos  || exit 1
+make -j $(nproc) || exit 1
+make DESTDIR=${sys_root} install|| exit 1
+make clean
+cd ..
+rm -rf build-gmp

user/port/mpc/1.2.1/build.sh

@@ -0,0 +1,35 @@
+# 编译前请先设置参数
+sys_root=$DRAGONOS_SYSROOT
+mpc_path=请填写mpc的路径
+
+# 要安装到的目录
+PREFIX=/usr
+current_path=$(pwd)
+
+if [ ! -d ${mpc_path} ]; then
+    echo "Error: ${mpc_path} not found"
+    exit 1
+fi
+
+if [ ! -d ${sysroot} ]; then
+    echo "Error: ${sysroot} not found"
+    exit 1
+fi
+
+cd ${mpc_path}
+autoreconf --install || exit 1
+autoconf
+sed -i 's/ios[*]/ios* | dragonos* /' build-aux/config.sub
+
+cd ${current_path}
+
+mkdir -p build || exit 1
+mkdir -p ${PREFIX} || exit 1
+
+cd build
+${mpc_path}/configure --prefix=${PREFIX} --host=x86_64-dragonos --target=x86_64-dragonos --with-mpfr=$sys_root/usr --with-gmp=$sys_root/usr || exit 1
+make -j $(nproc) || exit 1
+make DESTDIR=${sys_root} install || exit 1
+make clean
+cd ..
+rm -rf build

user/port/mpfr/4.1.1/build.sh

@@ -0,0 +1,37 @@
+
+# 编译前请先设置参数
+sys_root=$DRAGONOS_SYSROOT
+src_path=请填写mpfr的路径
+
+current_path=$(pwd)
+# 要安装到的目录
+PREFIX=/usr
+
+
+if [ ! -d ${src_path} ]; then
+    echo "Error: ${src_path} not found"
+    exit 1
+fi
+
+if [ ! -d ${sysroot} ]; then
+    echo "Error: ${sysroot} not found"
+    exit 1
+fi
+
+cd ${src_path}
+autoreconf --install
+autoconf
+sed -i 's/ios[*]/ios* | dragonos* /' config.sub
+
+cd ${current_path}
+
+mkdir -p build || exit 1
+mkdir -p ${PREFIX} || exit 1
+
+cd build
+${src_path}/configure --prefix=${PREFIX} --host=x86_64-dragonos  || exit 1
+make -j $(nproc) || exit 1
+make DESTDIR=${sys_root} install|| exit 1
+make clean
+cd ..
+rm -rf build

user/port/pkg-config.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+# Fill these in appropriately:
+ROOT_PATH=$(dirname $(dirname $(pwd)))
+DRAGONOS_SYSROOT=$ROOT_PATH/bin/sysroot
+
+
+
+export PKG_CONFIG_SYSROOT_DIR=$DRAGONOS_SYSROOT
+export PKG_CONFIG_LIBDIR=$DRAGONOS_SYSROOT/usr/lib/pkgconfig
+# TODO: If it works this should probably just be set to the empty string.
+# export PKG_CONFIG_PATH=$PKG_CONFIG_LIBDIR
+# Use --static here if your OS only has static linking.
+# TODO: Perhaps it's a bug in the libraries if their pkg-config files doesn't
+#       record that only static libraries were built.
+# exec pkg-config --static "$@"