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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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14
Kernel/Syscalls/getuid.cpp
View file

@ -8,31 +8,31 @@
namespace Kernel {
KResultOr<uid_t> Process::sys$getuid()
KResultOr<FlatPtr> Process::sys$getuid()
{
REQUIRE_PROMISE(stdio);
return uid();
}
KResultOr<gid_t> Process::sys$getgid()
KResultOr<FlatPtr> Process::sys$getgid()
{
REQUIRE_PROMISE(stdio);
return gid();
}
KResultOr<uid_t> Process::sys$geteuid()
KResultOr<FlatPtr> Process::sys$geteuid()
{
REQUIRE_PROMISE(stdio);
return euid();
}
KResultOr<gid_t> Process::sys$getegid()
KResultOr<FlatPtr> Process::sys$getegid()
{
REQUIRE_PROMISE(stdio);
return egid();
}
KResultOr<int> Process::sys$getresuid(Userspace<uid_t*> ruid, Userspace<uid_t*> euid, Userspace<uid_t*> suid)
KResultOr<FlatPtr> Process::sys$getresuid(Userspace<uid_t*> ruid, Userspace<uid_t*> euid, Userspace<uid_t*> suid)
{
REQUIRE_PROMISE(stdio);
if (!copy_to_user(ruid, &m_uid) || !copy_to_user(euid, &m_euid) || !copy_to_user(suid, &m_suid))
@ -40,7 +40,7 @@ KResultOr<int> Process::sys$getresuid(Userspace<uid_t*> ruid, Userspace<uid_t*>
return 0;
}
KResultOr<int> Process::sys$getresgid(Userspace<gid_t*> rgid, Userspace<gid_t*> egid, Userspace<gid_t*> sgid)
KResultOr<FlatPtr> Process::sys$getresgid(Userspace<gid_t*> rgid, Userspace<gid_t*> egid, Userspace<gid_t*> sgid)
{
REQUIRE_PROMISE(stdio);
if (!copy_to_user(rgid, &m_gid) || !copy_to_user(egid, &m_egid) || !copy_to_user(sgid, &m_sgid))
@ -48,7 +48,7 @@ KResultOr<int> Process::sys$getresgid(Userspace<gid_t*> rgid, Userspace<gid_t*>
return 0;
}
KResultOr<int> Process::sys$getgroups(size_t count, Userspace<gid_t*> user_gids)
KResultOr<FlatPtr> Process::sys$getgroups(size_t count, Userspace<gid_t*> user_gids)
{
REQUIRE_PROMISE(stdio);
if (!count)