build: Remove DragonOS_GCC And make CI use docker image (#954)

* build: 不再需要x86_64-elf-gcc的支持
* ci: 添加ci用的docker镜像
* 切换workflow到构建用的容器上

---------

Signed-off-by: longjin <longjin@DragonOS.org>

kernel/src/libs/Makefile

@@ -1,19 +0,0 @@
-
-CFLAGS += -I .
-
-kernel_lib_subdirs:=
-
-kernel_lib_objs:= $(shell find ./*.c)
-
-ECHO:
-	@echo "$@"
-
-$(kernel_lib_subdirs): ECHO
-	$(MAKE) -C $@ all CFLAGS="$(CFLAGS)" ASFLAGS="$(ASFLAGS)" 
-
-$(kernel_lib_objs): ECHO
-	$(CC) $(CFLAGS) -c $@ -o $@.o
-
-all: $(kernel_lib_objs) $(kernel_lib_subdirs)
-	@echo $(kernel_lib_objs)
-

kernel/src/libs/glib.c

@@ -1,34 +0,0 @@
-#include <common/glib.h>
-#include <common/string.h>
-
-
-/**
- * @brief 将数据从src搬运到dst，并能正确处理地址重叠的问题
- * 
- * @param dst 目标地址指针
- * @param src 源地址指针
- * @param size 大小
- * @return void* 指向目标地址的指针
- */
-void *c_memmove(void *dst, const void *src, uint64_t size)
-{
-    const char *_src = src;
-	char *_dst = dst;
-
-	if (!size)
-		return dst;
-
-	// 当源地址大于目标地址时，使用memcpy来完成
-	if (dst <= src)
-		return memcpy(dst, src, size);
-
-	// 当源地址小于目标地址时，为防止重叠覆盖，因此从后往前拷贝
-	_src += size;
-	_dst += size;
-
-	// 逐字节拷贝
-	while (size--)
-		*--_dst = *--_src;
-
-	return dst;
-}

kernel/src/libs/string.c

@@ -1,101 +0,0 @@
-#include <common/string.h>
-#include <common/glib.h>
-
-/**
- * @brief 拷贝整个字符串
- *
- * @param dst 目标地址
- * @param src 源地址
- * @return char* 目标字符串
- */
-char *strcpy(char *dst, const char *src)
-{
-    while (*src)
-    {
-        *(dst++) = *(src++);
-    }
-    *dst = 0;
-
-    return dst;
-}
-
-long strnlen(const char *src, unsigned long maxlen)
-{
-
-    if (src == NULL)
-        return 0;
-    register int __res = 0;
-    while (src[__res] != '\0' && __res < maxlen)
-    {
-        ++__res;
-    }
-    return __res;
-}
-
-/*
-        比较字符串 FirstPart and SecondPart
-        FirstPart = SecondPart =>  0
-        FirstPart > SecondPart =>  1
-        FirstPart < SecondPart => -1
-*/
-int strcmp(const char *l, const char *r)
-{
-    for (; *l == *r && *l; l++, r++)
-        ;
-    return *(unsigned char *)l - *(unsigned char *)r;
-}
-
-char *__stpncpy(char *restrict d, const char *restrict s, size_t n)
-{
-
-    for (; n && (*d = *s); n--, s++, d++)
-        ;
-tail:
-    memset(d, 0, n);
-    return d;
-}
-
-char *strncpy(char *restrict d, const char *restrict s, size_t n)
-{
-    __stpncpy(d, s, n);
-    return d;
-}
-
-long strncpy_from_user(char *dst, const char *src, unsigned long size)
-{
-    if (!verify_area((uint64_t)src, size))
-        return 0;
-
-    strncpy(dst, src, size);
-    return size;
-}
-
-/**
- * @brief 测量来自用户空间的字符串的长度，会检验地址空间是否属于用户空间
- * @param src
- * @param maxlen
- * @return long
- */
-long strnlen_user(const char *src, unsigned long maxlen)
-{
-
-    unsigned long size = strlen(src);
-    // 地址不合法
-    if (!verify_area((uint64_t)src, size))
-        return 0;
-
-    return size <= maxlen ? size : maxlen;
-}
-
-/**
- * @brief 拼接两个字符串（将src接到dest末尾）
- *
- * @param dest 目标串
- * @param src 源串
- * @return char*
- */
-char *strcat(char *dest, const char *src)
-{
-    strcpy(dest + strlen(dest), src);
-    return dest;
-}

kernel/src/libs/unistd.c

@@ -1,20 +0,0 @@
-#include <common/unistd.h>
-#include <common/glib.h>
-
-
-void swab(void *restrict src, void *restrict dest, ssize_t nbytes)
-{
-    unsigned char buf[32];
-    char *_src = src;
-    char *_dest = dest;
-    uint32_t transfer;
-    for (; nbytes > 0; nbytes -= transfer)
-    {
-        transfer = (nbytes > 32) ? 32 : nbytes;
-        memcpy(buf, _src, transfer);
-        memcpy(_src, _dest, transfer);
-        memcpy(_dest, buf, transfer);
-        _src += transfer;
-        _dest += transfer;
-    }
-}