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Kernel: Fix the return type for syscalls

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The Process::Handler type has KResultOr<FlatPtr> as its return type.
Using a different return type with an equally-sized template parameter
sort of works but breaks once that condition is no longer true, e.g.
for KResultOr<int> on x86_64.

Ideally the syscall handlers would also take FlatPtrs as their args
so we can get rid of the reinterpret_cast for the function pointer
but I didn't quite feel like cleaning that up as well.
This commit is contained in:
Gunnar Beutner 2021-06-28 20:59:35 +02:00 • committed by Andreas Kling
parent b6435372cc
commit 2a78bf8596
71 changed files with 313 additions and 301 deletions
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4
Kernel/Syscalls/link.cpp
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@ -10,7 +10,7 @@
namespace Kernel {
KResultOr<int> Process::sys$link(Userspace<const Syscall::SC_link_params*> user_params)
KResultOr<FlatPtr> Process::sys$link(Userspace<const Syscall::SC_link_params*> user_params)
{
REQUIRE_PROMISE(cpath);
Syscall::SC_link_params params;
@ -25,7 +25,7 @@ KResultOr<int> Process::sys$link(Userspace<const Syscall::SC_link_params*> user_
return VFS::the().link(old_path, new_path, current_directory());
}
KResultOr<int> Process::sys$symlink(Userspace<const Syscall::SC_symlink_params*> user_params)
KResultOr<FlatPtr> Process::sys$symlink(Userspace<const Syscall::SC_symlink_params*> user_params)
{
REQUIRE_PROMISE(cpath);
Syscall::SC_symlink_params params;