[libk]: libk main、rt_main crt0 启动框架搭建

magnitude/libk/arch/aarch64/bits/alltypes.h

@@ -0,0 +1,19 @@
+
+#ifndef BITS_ALLTYPES_H
+#define BITS_ALLTYPES_H
+
+typedef unsigned long    size_t;
+typedef unsigned long uintptr_t;
+typedef unsigned long  uint64_t;
+typedef   signed long   ssize_t;
+typedef   signed long  intptr_t;
+typedef   signed long   int64_t;
+
+typedef unsigned int   uint32_t;
+typedef   signed int    int32_t;
+
+typedef unsigned short uint16_t;
+typedef   signed short  int16_t;
+
+#endif
+

magnitude/libk/arch/aarch64/crt_arch.h

@@ -0,0 +1,14 @@
+
+#ifndef CRT_ARCH
+#define CRT_ARCH
+
+#define CTR_ARCH_START_ASM(START) \
+__asm__(    \
+".text \n"  \
+".global " START "\n"   \
+".type " START ",%function\n"   \
+START ":\n" \
+"	b " START "_c\n"  \
+);
+
+#endif

magnitude/libk/arch/aarch64/libkasm.h

@@ -7,4 +7,6 @@
 
 #define __asm_memcpy
 
+void crt0(void);
+
 #endif //LIBKASM_H

magnitude/libk/arch/crt.h

@@ -0,0 +1,12 @@
+//
+// Created by dongl on 25-8-12.
+//
+
+#ifndef CRT_H
+#define CRT_H
+
+#include <crt_arch.h>
+
+void _start_c( long *p );
+
+#endif //CRT_H

magnitude/libk/crt/aarch64/libk_fini.S

@@ -0,0 +1,3 @@
+
+libk_fini:
+    ret

magnitude/libk/crt/aarch64/libk_init.S

@@ -0,0 +1,3 @@
+
+libk_init:
+    ret

magnitude/libk/crt/crt0.c

@@ -0,0 +1,35 @@
+//
+// Created by dongl on 25-8-11.
+//
+#include <libk.h>
+#include <features.h>
+
+#define START "_start"
+
+#include <crt.h>
+
+weak void libk_init();
+weak void libk_fini();
+int    main( int argc, char **argv );
+int rt_main( int argc, char **argv );
+
+int libk_start_main(
+    int (*)(),
+    int,
+    char **,
+    void (*)(),
+    void(*)(),
+    void(*)()
+);
+
+void _start_c( long *p )
+{
+    // main 入口参数
+    const int     argc = (int)    p[0];
+    char        **argv = (void *)(p+1);
+    (void) argv;
+
+    p[0] >> (sizeof(long) - 1)
+    ? libk_start_main(main, argc, argv, libk_init, libk_fini, 0)
+    : libk_start_main(rt_main, argc, argv, libk_init, libk_fini, 0);
+}

magnitude/libk/include/features.h

@@ -0,0 +1,25 @@
+#ifndef _FEATURES_H
+#define _FEATURES_H
+
+#if __STDC_VERSION__ >= 199901L
+#define __restrict restrict
+#elif !defined(__GNUC__)
+#define __restrict
+#endif
+
+#if __STDC_VERSION__ >= 199901L || defined(__cplusplus)
+#define __inline inline
+#elif !defined(__GNUC__)
+#define __inline
+#endif
+
+#if __STDC_VERSION__ >= 201112L
+#elif defined(__GNUC__)
+#define _Noreturn __attribute__((__noreturn__))
+#else
+#define _Noreturn
+#endif
+
+#define __REDIR(x,y) __typeof__(x) x __asm__(#y)
+
+#endif

magnitude/libk/include/memory.h

@@ -5,7 +5,7 @@
 #ifndef LIBK_MEMORY_H
 #define LIBK_MEMORY_H
 
-#include <stddef.h>  // for size_t
+#include "stddef.h"  // for size_t
 
 #ifdef __cplusplus
 extern "C" {

magnitude/libk/include/stddef.h

@@ -1,22 +1,14 @@
-//
-// Created by dongl on 25-7-31.
-//
+#ifndef _STDDEF_H
+#define _STDDEF_H
 
-#ifndef STDDEF_H
-#define STDDEF_H
+#if __cplusplus >= 201103L
+#define NULL nullptr
+#elif defined(__cplusplus)
+#define NULL 0L
+#else
+#define NULL ((void*)0)
+#endif
 
-#include <typedef.h>
+#include <bits/alltypes.h>
 
-typedef unsigned long    size_t;
-typedef unsigned long uintptr_t;
-typedef unsigned long  uint64_t;
-typedef   signed long  intptr_t;
-typedef   signed long   int64_t;
-
-typedef unsigned int   uint32_t;
-typedef   signed int    int32_t;
-
-typedef unsigned short uint16_t;
-typedef   signed short  int16_t;
-
-#endif //STDDEF_H
+#endif

magnitude/libk/include/string.h

@@ -5,7 +5,7 @@
 #ifndef LIBK_STRING_H
 #define LIBK_STRING_H
 
-#include <stddef.h>  // for size_t
+#include "stddef.h"  // for size_t
 
 #ifdef __cplusplus
 extern "C" {

magnitude/libk/include/typedef.h

@@ -1,13 +0,0 @@
-//
-// Created by dongl on 25-8-1.
-//
-
-#ifndef TYPEDEF_H
-#define TYPEDEF_H
-
-#define NULL ((void *)0)
-
-#define General_API __attribute__((weak))
-#define Specialized_API
-
-#endif //TYPEDEF_H

magnitude/libk/src/include/features.h

@@ -0,0 +1,17 @@
+//
+// Created by dongl on 25-8-11.
+//
+
+#ifndef FEATURES_H
+#define FEATURES_H
+
+#include "../../include/features.h"
+
+#define weak __attribute__((__weak__))
+#define hidden __attribute__((__visibility__("hidden")))
+#define weak_alias(old, new) \
+	extern __typeof(old) new __attribute__((__weak__, __alias__(#old)))
+
+#define General_API weak
+
+#endif

magnitude/libk/src/include/memory.h

@@ -0,0 +1,10 @@
+//
+// Created by dongl on 25-8-11.
+//
+
+#ifndef MEMORY_H
+#define MEMORY_H
+
+#include "../../include/string.h"
+
+#endif //MEMORY_H

magnitude/libk/src/include/stdbool.h

@@ -0,0 +1,19 @@
+//
+// Created by dongl on 25-8-12.
+//
+
+#ifndef STDBOOL_H
+#define STDBOOL_H
+
+#ifndef __cplusplus
+
+#define true 1
+#define false 0
+#define bool _Bool
+
+#endif
+
+#define __bool_true_false_are_defined 1
+
+
+#endif //STDBOOL_H

magnitude/libk/src/include/stddef.h

@@ -0,0 +1,10 @@
+//
+// Created by dongl on 25-8-11.
+//
+
+#ifndef STDDEF_H
+#define STDDEF_H
+
+#include "../../include/stddef.h"
+
+#endif //STDDEF_H

magnitude/libk/src/include/string.h

@@ -0,0 +1,11 @@
+//
+// Created by dongl on 25-8-11.
+//
+
+#ifndef STRING_H
+#define STRING_H
+
+#include "../../include/string.h"
+
+
+#endif

magnitude/libk/src/include/unistd.h

@@ -0,0 +1,13 @@
+#ifndef UNISTD_H
+#define UNISTD_H
+
+// #include "../../include/unistd.h"
+//
+// extern char **__environ;
+//
+// hidden int __dup3(int, int, int);
+// hidden int __mkostemps(char *, int, int);
+// hidden int __execvpe(const char *, char *const *, char *const *);
+// hidden off_t __lseek(int, off_t, int);
+
+#endif

magnitude/libk/src/libk_start_main.c

@@ -0,0 +1,21 @@
+//
+// Created by dongl on 25-8-12.
+//
+
+int exit(int code);
+
+int libk_start_main(
+    int     (*main)(int,char **),
+    int     argc,
+    char  **argv,
+    void    (*init_dummy)(),
+    void    (*fini_dummy)(),
+    void    (*ldso_dummy)()
+) {
+    (void)(ldso_dummy);
+
+    init_dummy();
+    exit(main(argc, argv));
+    fini_dummy();
+    return 0;
+}

magnitude/libk/src/memory.c

@@ -4,6 +4,7 @@
 
 #include <libk.h>
 #include <memory.h>
+#include <features.h>
 
 #ifndef __asm_memcpy
 // 复制 n 字节从 src 到 dest（不处理重叠）

magnitude/libk/src/string.c

@@ -2,12 +2,16 @@
 // Created by dongl on 25-7-31.
 //
 
+#include <libk.h>
 #include <string.h>
+#include <features.h>
 
-size_t strlen(const char *str)
+#ifndef __asm_strlen
+General_API size_t strlen(const char *str)
 {
     size_t len = 0;
     while (str[len] != '\0')
         ++len;
     return len;
 }
+#endif