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Kernel: Remove trap based syscall handling

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This patch removes the x86 mechanism for calling syscalls, favoring
the more modern syscall instruction. It also moves architecture
dependent code from functions that are meant to be architecture
agnostic therefore paving the way for adding more architectures.
This commit is contained in:
Agustin Gianni 2023-01-25 19:30:00 +00:00 • committed by Andrew Kaster
parent e71c320154
commit bfbb4bcd9b
4 changed files with 14 additions and 51 deletions
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3
Kernel/API/Syscall.h
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@ -9,6 +9,7 @@
#include <AK/Types.h>
#include <AK/Userspace.h>
#include <Kernel/API/POSIX/sched.h>
#include <Kernel/Arch/RegisterState.h>
constexpr int syscall_vector = 0x82;
@ -201,6 +202,8 @@ enum class NeedsBigProcessLock {
namespace Syscall {
ErrorOr<FlatPtr> handle(RegisterState&, FlatPtr function, FlatPtr arg1, FlatPtr arg2, FlatPtr arg3, FlatPtr arg4);
enum Function {
#undef __ENUMERATE_SYSCALL
#define __ENUMERATE_SYSCALL(sys_call, needs_lock) SC_##sys_call,