C++ example:

Makefile: add 'strip'
console_obj.h: console.obj loading
hello.cpp: add console.obj functions

git-svn-id: svn://kolibrios.org@8182 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
maxcodehack 2020-11-13 08:35:06 +00:00
parent 4ecba2d480
commit d4a127c1cb
3 changed files with 156 additions and 2 deletions

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@ -5,7 +5,7 @@ SDK_DIR = $(abspath ../..)
LDFLAGS = -call_shared -nostdlib -T $(SDK_DIR)/sources/newlib/app-dynamic.lds --image-base 0
CFLAGS = -c -fno-ident -O2 -fomit-frame-pointer -fno-ident -U__WIN32__ -U_Win32 -U_WIN32 -U__MINGW32__ -UWIN32
CFLAGS = -c -fno-ident -O2 -fomit-frame-pointer -fno-ident -U__WIN32__ -U_Win32 -U_WIN32 -U__MINGW32__ -UWIN32 -Wno-pointer-arith
INCLUDES = -I $(SDK_DIR)/sources/newlib/libc/include -I $(SDK_DIR)/sources/libstdc++-v3/include
LIBPATH = -L $(SDK_DIR)/lib -L /home/autobuild/tools/win32/mingw32/lib
@ -18,7 +18,8 @@ OBJECTS = $(patsubst %.cpp, %.o, $(SOURCES))
default: hello
hello: $(OBJECTS) Makefile
$(LD) $(LDFLAGS) $(LIBPATH) --subsystem console -o hello.kex $(OBJECTS) -lc.dll -lstdc++ -lsupc++ -lgcc -lc
$(LD) $(LDFLAGS) $(LIBPATH) --subsystem console -o hello.kex $(OBJECTS) -lstdc++ -lsupc++ -lgcc -lc
strip -s hello.kex -o hello.kex
objcopy hello.kex -O binary
rm *.o

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@ -0,0 +1,141 @@
// Console.obj loading for kos32-gcc
// Writed by rgimad and maxcodehack
#include <string.h>
#include <stdlib.h>
#ifndef CONSOLE_H
#define CONSOLE_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef NULL
#define NULL 0
#endif
#ifndef cdecl
#define cdecl __attribute__ ((cdecl))
#endif
#ifndef stdcall
#define stdcall __attribute__ ((stdcall))
#endif
typedef unsigned int dword;
typedef unsigned short word;
const char* imports[] = {
"START", "version", "con_init", "con_write_asciiz", "con_write_string",
"con_printf", "con_exit", "con_get_flags", "con_set_flags", "con_kbhit",
"con_getch", "con_getch2", "con_gets", "con_gets2", "con_get_font_height",
"con_get_cursor_height", "con_set_cursor_height", "con_cls",
"con_get_cursor_pos", "con_set_cursor_pos", "con_set_title",
(char*)0
};
dword *version;
typedef int (stdcall * con_gets2_callback)(int keycode, char** pstr, int* pn,
int* ppos);
void stdcall (*con_init)(dword wnd_width, dword wnd_height, dword scr_width, dword scr_height, const char* title) = 0;
void stdcall (*con_exit)(int bCloseWindow) = 0;
void stdcall (*con_set_title)(const char* title) = 0;
void stdcall (*con_write_asciiz)(const char* str) = 0;
void stdcall (*con_write_string)(const char* str, dword length) = 0;
int cdecl (*con_printf)(const char* format, ...) = 0;
dword stdcall (*con_get_flags)(void) = 0;
dword stdcall (*con_set_flags)(dword new_flags) = 0;
int stdcall (*con_get_font_height)(void) = 0;
int stdcall (*con_get_cursor_height)(void) = 0;
int stdcall (*con_set_cursor_height)(int new_height) = 0;
int stdcall (*con_getch)(void) = 0;
word stdcall (*con_getch2)(void) = 0;
int stdcall (*con_kbhit)(void) = 0;
char* stdcall (*con_gets)(char* str, int n) = 0;
char* stdcall (*con_gets2)(con_gets2_callback callback, char* str, int n) = 0;
void stdcall (*con_cls)() = 0;
void stdcall (*con_get_cursor_pos)(int* px, int* py) = 0;
void stdcall (*con_set_cursor_pos)(int x, int y) = 0;
const char lib_path[] = "/sys/lib/console.obj";
void* load_library(const char *name)
{
void *table;
__asm__ __volatile__(
"int $0x40"
:"=a"(table)
:"a"(68), "b"(19), "c"(name));
return table;
}
void *load_library_procedure(void *exports, const char *name)
{
if (exports == NULL) { return 0; }
while (*(dword*)exports != 0)
{
char *str1 = (char*)(*(dword*)exports);
if (strcmp(str1, name) == 0)
{
void *ptr = (void*)*(dword*)(exports + 4);
return ptr;
}
exports += 8;
}
return 0;
}
void output_debug_string(const char *s)
{
unsigned int i = 0;
while(*(s + i))
{
asm volatile ("int $0x40"::"a"(63), "b"(1), "c"(*(s + i)));
i++;
}
}
void load_console()
{
void *lib = load_library(lib_path);
if (!lib)
{
output_debug_string("Console.obj loading error\r\n");
exit(1);
}
dword (*start_lib)(dword) = (dword(*)(dword))load_library_procedure(lib, imports[0]);
version = (dword*)load_library_procedure(lib, imports[1]);
con_init = (void stdcall(*)(dword,dword,dword,dword,const char*))load_library_procedure(lib, imports[2]);
con_write_asciiz = (void stdcall(*)(const char*))load_library_procedure(lib, imports[3]);
con_write_string = (void stdcall(*)(const char*,dword))load_library_procedure(lib, imports[4]);
con_printf = (int cdecl(*)(const char*,...))load_library_procedure(lib, imports[5]);
con_exit = (void stdcall(*)(int))load_library_procedure(lib, imports[6]);
con_get_flags = (dword stdcall(*)(void))load_library_procedure(lib, imports[7]);
con_set_flags = (dword stdcall(*)(dword))load_library_procedure(lib, imports[8]);
con_kbhit = (int stdcall(*)(void))load_library_procedure(lib, imports[9]);
con_getch = (int stdcall(*)(void))load_library_procedure(lib, imports[10]);
con_getch2 = (word stdcall(*)(void))load_library_procedure(lib, imports[11]);
con_gets = (char* stdcall(*)(char*,int))load_library_procedure(lib, imports[12]);
con_gets2 = (char* stdcall(*)(con_gets2_callback,char*,int))load_library_procedure(lib, imports[13]);
con_get_font_height = (int stdcall(*)(void))load_library_procedure(lib, imports[14]);
con_get_cursor_height = (int stdcall(*)(void))load_library_procedure(lib, imports[15]);
con_set_cursor_height = (int stdcall(*)(int))load_library_procedure(lib, imports[16]);
con_cls = (void stdcall(*)(void))load_library_procedure(lib, imports[17]);
con_get_cursor_pos = (void stdcall(*)(int*,int*))load_library_procedure(lib, imports[18]);
con_set_cursor_pos = (void stdcall(*)(int,int))load_library_procedure(lib, imports[19]);
con_set_title = (void stdcall(*)(const char*))load_library_procedure(lib, imports[20]);
}
#ifdef __cplusplus
}
#endif
#endif

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@ -1,9 +1,21 @@
// for 'cout'
#include <iostream>
// for 'console.obj' functions
#include "console_obj.h"
using namespace std;
int main()
{
// load console.obj
load_console();
con_set_title("C++ Console.obj example");
cout << "Press any key...\n";
con_getch();
cout << "Hello, KolibriOS!\n";
con_set_title("Hello");
return 0;
}