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path: root/Kernel/Syscalls/ftruncate.cpp
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2021-09-05Kernel: Make file description lookup return KResultOrAndreas Kling
Instead of checking it at every call site (to generate EBADF), we make file_description(fd) return a KResultOr<NonnullRefPtr<FileDescription>>. This allows us to wrap all the calls in TRY(). :^) The only place that got a little bit messier from this is sys$mount(), and there's a whole bunch of things there in need of cleanup.
2021-09-05Kernel: Make copy_{from,to}_user() return KResult and use TRY()Andreas Kling
This makes EFAULT propagation flow much more naturally. :^)
2021-07-20Kernel: Annotate all syscalls with VERIFY_PROCESS_BIG_LOCK_ACQUIREDBrian Gianforcaro
Before we start disabling acquisition of the big process lock for specific syscalls, make sure to document and assert that all the lock is held during all syscalls.
2021-06-29Kernel: Don't copy a Vector<FileDescriptionAndFlags>Liav A
Instead of copying a Vector everytime we need to enumerate a Process' file descriptions, we can just temporarily lock so it won't change.
2021-06-28Kernel: Fix the return type for syscallsGunnar Beutner
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.
2021-04-22Everything: Move to SPDX license identifiers in all files.Brian Gianforcaro
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 *
2021-03-17LibC+Kernel: Switch off_t to 64 bitsJean-Baptiste Boric
2021-03-01Kernel: Make all syscall functions return KResultOr<T>Andreas Kling
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.
2020-07-30Kernel: Move syscall implementations out of Process.cppAndreas Kling
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. :^)