Commit Graph

8 Commits

Author SHA1 Message Date
Gunnar Beutner
2a78bf8596 Kernel: Fix the return type for syscalls
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.
2021-06-28 22:29:28 +02:00
Brian Gianforcaro
1682f0b760 Everything: Move to SPDX license identifiers in all files.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.

See: https://spdx.dev/resources/use/#identifiers

This was done with the `ambr` search and replace tool.

 ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 11:22:27 +02:00
Andreas Kling
497c4c3858 Kernel: Let's also not reverse the blocking flag for FIONBIO.. 2021-03-29 08:59:22 +02:00
Andreas Kling
0f270afda8 Kernel: Let's allow unsetting non-blocking mode with FIONBIO as well
Thanks to almightyhydra for pointing this out! :^)
2021-03-29 08:58:13 +02:00
Andreas Kling
5f71bf0cc7 Kernel+LibC: Implement sys$ioctl() FIONBIO
This is another (older) way of making a file descriptor non-blocking.
2021-03-28 17:50:08 +02:00
Andreas Kling
ac71775de5 Kernel: Make all syscall functions return KResultOr<T>
This makes it a lot easier to return errors since we no longer have to
worry about negating EFOO errors and can just return them flat.
2021-03-01 13:54:32 +01:00
Andreas Kling
292cd53192 Kernel: Remove SmapDisabler in sys$ioctl()
Use copy_{to,from}_user() in the various File::ioctl() implementations
instead of disabling SMAP wholesale in sys$ioctl().

This patch does not port IPv4Socket::ioctl() to those API's since that
will be more involved. That function now creates a local SmapDisabler.
2020-07-31 00:17:25 +02:00
Andreas Kling
949aef4aef Kernel: Move syscall implementations out of Process.cpp
This is something I've been meaning to do for a long time, and here we
finally go. This patch moves all sys$foo functions out of Process.cpp
and into files in Kernel/Syscalls/.

It's not exactly one syscall per file (although it could be, but I got
a bit tired of the repetitive work here..)

This makes hacking on individual syscalls a lot less painful since you
don't have to rebuild nearly as much code every time. I'm also hopeful
that this makes it easier to understand individual syscalls. :^)
2020-07-30 23:40:57 +02:00