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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/module.cpp
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@ -15,7 +15,7 @@ namespace Kernel {
extern HashMap<String, OwnPtr<Module>>* g_modules;
KResultOr<int> Process::sys$module_load(Userspace<const char*> user_path, size_t path_length)
KResultOr<FlatPtr> Process::sys$module_load(Userspace<const char*> user_path, size_t path_length)
{
if (!is_superuser())
return EPERM;
@ -144,7 +144,7 @@ KResultOr<int> Process::sys$module_load(Userspace<const char*> user_path, size_t
return 0;
}
KResultOr<int> Process::sys$module_unload(Userspace<const char*> user_name, size_t name_length)
KResultOr<FlatPtr> Process::sys$module_unload(Userspace<const char*> user_name, size_t name_length)
{
if (!is_superuser())
return EPERM;