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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
Notes: sideshowbarker 2024-07-18 11:22:24 +09:00
71 changed files with 313 additions and 301 deletions
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6
Kernel/Syscalls/debug.cpp
View file

@ -11,19 +11,19 @@
namespace Kernel {
KResultOr<int> Process::sys$dump_backtrace()
KResultOr<FlatPtr> Process::sys$dump_backtrace()
{
dump_backtrace();
return 0;
}
KResultOr<int> Process::sys$dbgputch(u8 ch)
KResultOr<FlatPtr> Process::sys$dbgputch(u8 ch)
{
dbgputch(ch);
return 0;
}
KResultOr<size_t> Process::sys$dbgputstr(Userspace<const u8*> characters, size_t size)
KResultOr<FlatPtr> Process::sys$dbgputstr(Userspace<const u8*> characters, size_t size)
{
if (size == 0)
return 0;