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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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10
Kernel/Syscalls/clock.cpp
View file

@ -10,7 +10,7 @@
namespace Kernel {
KResultOr<int> Process::sys$clock_gettime(clockid_t clock_id, Userspace<timespec*> user_ts)
KResultOr<FlatPtr> Process::sys$clock_gettime(clockid_t clock_id, Userspace<timespec*> user_ts)
{
REQUIRE_PROMISE(stdio);
@ -24,7 +24,7 @@ KResultOr<int> Process::sys$clock_gettime(clockid_t clock_id, Userspace<timespec
return 0;
}
KResultOr<int> Process::sys$clock_settime(clockid_t clock_id, Userspace<const timespec*> user_ts)
KResultOr<FlatPtr> Process::sys$clock_settime(clockid_t clock_id, Userspace<const timespec*> user_ts)
{
REQUIRE_PROMISE(settime);
@ -45,7 +45,7 @@ KResultOr<int> Process::sys$clock_settime(clockid_t clock_id, Userspace<const ti
return 0;
}
KResultOr<int> Process::sys$clock_nanosleep(Userspace<const Syscall::SC_clock_nanosleep_params*> user_params)
KResultOr<FlatPtr> Process::sys$clock_nanosleep(Userspace<const Syscall::SC_clock_nanosleep_params*> user_params)
{
REQUIRE_PROMISE(stdio);
@ -87,7 +87,7 @@ KResultOr<int> Process::sys$clock_nanosleep(Userspace<const Syscall::SC_clock_na
return 0;
}
KResultOr<int> Process::sys$adjtime(Userspace<const timeval*> user_delta, Userspace<timeval*> user_old_delta)
KResultOr<FlatPtr> Process::sys$adjtime(Userspace<const timeval*> user_delta, Userspace<timeval*> user_old_delta)
{
if (user_old_delta) {
timespec old_delta_ts = TimeManagement::the().remaining_epoch_time_adjustment();
@ -112,7 +112,7 @@ KResultOr<int> Process::sys$adjtime(Userspace<const timeval*> user_delta, Usersp
return 0;
}
KResultOr<int> Process::sys$gettimeofday(Userspace<timeval*> user_tv)
KResultOr<FlatPtr> Process::sys$gettimeofday(Userspace<timeval*> user_tv)
{
REQUIRE_PROMISE(stdio);
auto tv = kgettimeofday().to_timeval();