Modules/library/crt/crt0.cpp
2024-07-07 03:15:17 +03:00

145 lines
4.0 KiB
C++

/*
This file is part of Fennix Drivers.
Fennix Drivers is free software: you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version.
Fennix Drivers is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Fennix Drivers. If not, see <https://www.gnu.org/licenses/>.
*/
#include <driver.h>
#include <errno.h>
dev_t DriverID = -1;
extern "C" int DriverEntry();
extern "C" int DriverFinal();
extern "C" int DriverPanic();
extern "C" int DriverProbe();
typedef void (*CallPtr)(void);
extern "C" CallPtr __init_array_start[0], __init_array_end[0];
extern "C" CallPtr __fini_array_start[0], __fini_array_end[0];
extern "C" int _start(dev_t id)
{
DriverID = id;
for (CallPtr *func = __init_array_start; func != __init_array_end; func++)
(*func)();
return 0;
}
extern "C" int _final()
{
int err = DriverFinal();
for (CallPtr *func = __fini_array_start; func != __fini_array_end; func++)
(*func)();
return err;
}
/* ---------------------------------------------------------- */
#define KCALL extern "C" __attribute__((used))
#define KernelFunction(Name) \
KCALL long __##Name(dev_t id, \
long arg0 = 0, long arg1 = 0, long arg2 = 0, \
long arg3 = 0, long arg4 = 0, long arg5 = 0);
#define DefineFunction(ReturnType, Name, ...) \
KernelFunction(Name); \
KCALL ReturnType Name(__VA_ARGS__)
#define DefineWrapper(Name) \
KernelFunction(Name); \
KCALL long Name(long arg0, long arg1, long arg2, long arg3, long arg4, long arg5) \
{ \
return __##Name(DriverID, arg0, arg1, arg2, arg3, arg4, arg5); \
}
DefineFunction(void, KernelPrint, const char *format, ...)
{
__builtin_va_list args;
__builtin_va_start(args, format);
__KernelPrint(DriverID, (long)format, (long)args);
__builtin_va_end(args);
}
DefineFunction(void, KernelLog, const char *format, ...)
{
__builtin_va_list args;
__builtin_va_start(args, format);
__KernelLog(DriverID, (long)format, (long)args);
__builtin_va_end(args);
}
DefineWrapper(RegisterInterruptHandler);
DefineWrapper(OverrideInterruptHandler);
DefineWrapper(UnregisterInterruptHandler);
DefineWrapper(UnregisterAllInterruptHandlers);
DefineWrapper(AllocateMemory);
DefineWrapper(FreeMemory);
DefineWrapper(AppendMapFlag);
DefineWrapper(RemoveMapFlag);
DefineWrapper(MapPages);
DefineWrapper(UnmapPages);
DefineWrapper(MemoryCopy);
DefineWrapper(MemorySet);
DefineWrapper(MemoryMove);
DefineWrapper(StringLength);
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wbuiltin-declaration-mismatch"
DefineWrapper(strstr);
#pragma GCC diagnostic pop
DefineWrapper(EnterCriticalSection);
DefineWrapper(LeaveCriticalSection);
DefineWrapper(CreateKernelProcess);
DefineWrapper(CreateKernelThread);
DefineWrapper(GetCurrentProcess);
DefineWrapper(KillProcess);
DefineWrapper(KillThread);
DefineWrapper(Yield);
DefineWrapper(Sleep);
DefineWrapper(RegisterFileSystem);
DefineWrapper(UnregisterFileSystem);
DefineWrapper(PIC_EOI);
DefineWrapper(IRQ_MASK);
DefineWrapper(IRQ_UNMASK);
DefineWrapper(PS2Wait);
DefineWrapper(PS2WriteCommand);
DefineWrapper(PS2WriteData);
DefineWrapper(PS2ReadData);
DefineWrapper(PS2ReadStatus);
DefineWrapper(PS2ReadAfterACK);
DefineWrapper(PS2ClearOutputBuffer);
DefineWrapper(PS2ACKTimeout);
DefineWrapper(RegisterDevice);
DefineWrapper(UnregisterDevice);
DefineWrapper(ReportInputEvent);
DefineWrapper(InitializePCI);
DefineWrapper(GetPCIDevices);
DefineWrapper(GetBAR);
DefineWrapper(iLine);
DefineWrapper(iPin);