/* ------------------------------------------------------------- *//* minimal startup with runtime linker to msvcrt */ #if 0 #define REDIR_ALL \ REDIR(__set_app_type)\ REDIR(__getmainargs)\ REDIR(_controlfp)\ REDIR(_vsnprintf)\ REDIR(exit)\ \ REDIR(puts)\ REDIR(printf)\ REDIR(putchar)\ REDIR(strtod)\ REDIR(memset)\ REDIR(strcpy)\ REDIR(strlen)\ REDIR(malloc)\ REDIR(free)\ #if defined __i386__ && !defined __TINYC__# define __leading_underscore 1#endif #ifdef __leading_underscore# define _(s) "_"#s#else# define _(s) #s#endif #define REDIR(s) void *s;static struct { REDIR_ALL } all_ptrs;#undef REDIR #define REDIR(s) #s"\0"static const char all_names[] = REDIR_ALL;#undef REDIR #if __aarch64__  #if defined __TINYC__  # define ALIGN ".align 8"  #else  # define ALIGN ".align 3" /* .align is power of 2 on non-ELF platforms */  #endif# define REDIR(s) \    __asm__("\n"_(s)":"); \    __asm__(".int 0x58000090"); /* ldr x16, [pc, #16] */ \    __asm__(".int 0xf9400210"); /* ldr x16, [x16] */ \    __asm__(".int 0xd61f0200"); /* br x16 */ \    __asm__(".int 0xd503201f"); /* nop for alignment */ \    __asm__(".quad all_ptrs + (. - all_jmps - 16) / 24 * 8"); \    __asm__(".global "_(s));     __asm__("\t.text\n\t"ALIGN"\nall_jmps:");    REDIR_ALL#else# define REDIR(s) \    __asm__("\n"_(s)":");\    __asm__("jmp *%0"::"m"(all_ptrs.s));\    __asm__(".global "_(s));     static void all_jmps() { REDIR_ALL }#endif#undef REDIR #if 0# include <windows.h>#else# if __i386__#  define STDCALL __declspec(stdcall)# else#  define STDCALL# endif# define DWORD long unsigned# define HMODULE void*# define HANDLE void*S TDCALL HMODULE LoadLibraryA(const char *);S TDCALL HMODULE GetProcAddress(HMODULE , char*);S TDCALL void ExitProcess(int);S TDCALL int WriteFile(HANDLE, const void*, DWORD, DWORD*, void*);S TDCALL HANDLE GetStdHandle(DWORD);S TDCALL int FlushFileBuffers(HANDLE);# define STD_ERROR_HANDLE -12#endif static void eput(const char *s){    DWORD n_out;    int n = 0;    while (s[n])        ++n;    WriteFile(GetStdHandle(STD_ERROR_HANDLE), s, n, &n_out, 0);} static void rt_reloc(){    const char *s = all_names;    void **p = (void**)&all_ptrs;    void *dll = LoadLibraryA("msvcrt.dll");    do {        char buf[100], *d = buf;        *p = (void*)GetProcAddress(dll, (char*)s);        *d++ = '_'; do *d++ = *s; while (*s++);        if (0 == *p)            *p = (void*)GetProcAddress(dll, buf);        if (0 == *p) {            eput("MSVCRT_START.C: RUNTIME RELOCATION ERROR: '");            eput(buf+1);            eput("'\n");            ExitProcess(-1);        }        ++p;    } while (*s);} #else# define rt_reloc()#endif int main(int argc, char **argv, char **env);void exit(int);void __set_app_type(int apptype); typedef struct { int newmode; } _startupinfo;int __getmainargs(int *pargc, char ***pargv, char ***penv, int globb, _startupinfo*); void _controlfp(unsigned a, unsigned b);#define _MCW_PC 0x00030000 // Precision Control#define _PC_53 0x00010000 // 53 bits int __argc;char **__argv;char **environ;_startupinfo start_info = {0}; void mainCRTStartup(void){    rt_reloc();#if defined __i386__ || defined __x86_64__    _controlfp(_PC_53, _MCW_PC);#endif    __set_app_type(1);    __getmainargs(&__argc, &__argv, &environ, 0, &start_info);    exit(main(__argc, __argv, environ));} #include <stdarg.h>#define size_t __SIZE_TYPE__int printf(const char *, ...);int _vsnprintf(char *, size_t, const char *, va_list); /* undefined on windows-11-arm64 */int vprintf(const char *format, va_list ap){    char buf[1000];    _vsnprintf(buf, sizeof buf, format, ap);    return printf("%s", buf);} void __main() {} /* for gcc */void _pei386_runtime_relocator(void) {} /* for gcc */void __chkstk(unsigned n) {} /* for clang */