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https://github.com/fergalmoran/ladybird.git
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fe237ee215
- Turn Keyboard into a CharacterDevice (85,1) at /dev/keyboard.
- Implement MM::unmapRegionsForTask() and MM::unmapRegion()
- Save SS correctly on interrupt.
- Add a simple Spawn syscall for launching another process.
- Move a bunch of IO syscall debug output behind DEBUG_IO.
- Have ASSERT do a "cli" immediately when failing.
This makes the output look proper every time.
- Implement a bunch of syscalls in LibC.
- Add a simple shell ("sh"). All it can do now is read a line
of text from /dev/keyboard and then try launching the specified
executable by calling spawn().
There are definitely bugs in here, but we're moving on forward.
59 lines
1.4 KiB
C++
59 lines
1.4 KiB
C++
#pragma once
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#include <AK/Types.h>
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#define DO_SYSCALL_A0(function) Syscall::invoke((dword)(function))
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#define DO_SYSCALL_A1(function, arg1) Syscall::invoke((dword)(function), (dword)(arg1))
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#define DO_SYSCALL_A2(function, arg1, arg2) Syscall::invoke((dword)(function), (dword)(arg1), (dword)(arg2))
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#define DO_SYSCALL_A3(function, arg1, arg2, arg3) Syscall::invoke((dword)(function), (dword)(arg1), (dword)(arg2), (dword)arg3)
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namespace Syscall {
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enum Function {
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Spawn = 0x1981,
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Sleep = 0x1982,
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Yield = 0x1983,
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PutCharacter = 1984,
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PosixOpen = 0x1985,
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PosixClose = 0x1986,
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PosixRead = 0x1987,
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PosixSeek = 0x1988,
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PosixKill = 0x1989,
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PosixGetuid = 0x1990,
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PosixExit = 0x1991,
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PosixGetgid = 0x1992,
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PosixGetpid = 0x1993,
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};
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void initialize();
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inline dword invoke(dword function)
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{
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dword result;
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asm volatile("int $0x80":"=a"(result):"a"(function));
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return result;
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}
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inline dword invoke(dword function, dword arg1)
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{
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dword result;
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asm volatile("int $0x80":"=a"(result):"a"(function),"d"(arg1));
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return result;
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}
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inline dword invoke(dword function, dword arg1, dword arg2)
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{
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dword result;
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asm volatile("int $0x80":"=a"(result):"a"(function),"d"(arg1),"c"(arg2));
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return result;
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}
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inline dword invoke(dword function, dword arg1, dword arg2, dword arg3)
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{
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dword result;
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asm volatile("int $0x80":"=a"(result):"a"(function),"d"(arg1),"c"(arg2),"b"(arg3));
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return result;
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}
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}
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