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path: root/src/kernel/syscalls.c
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2021-09-12vfs_request refactor pt2dzwdz
2021-09-12vfs request refactor pt1dzwdz
2021-09-12remove some dead codedzwdz
2021-09-12remove obsolete commentdzwdz
2021-09-11add some helper functions for copying between virtual and physical memorydzwdz
this was already possible, but now it's slightly safer
2021-09-11replace `user_ptr` with a linux-style `__user` annotationdzwdz
2021-09-09basic _syscall_fs_wait() impl, doesn't pass the req yetdzwdz
2021-09-08style: simplify the `kmalloc(sizeof(...` callsdzwdz
2021-09-08copy _syscall_fs_open's argument to a new buffer instead of a shared onedzwdz
this will be needed for storing vfs_op's properly
2021-09-08process struct: replace the generic saved_addr with an uniondzwdz
2021-09-08scaffolding for user fs dispatchdzwdz
2021-09-07reimplement _syscall_mountdzwdz
2021-09-07implement fs_create(), front/back fs handlesdzwdz
2021-09-05fix some warningsdzwdz
2021-09-05rename virt_user_cpy to virt_cpy, since it's no longer limited to virtual memorydzwdz
2021-09-05make virt_iter support iterating over physical memory toodzwdz
2021-09-05move most of the memory stuff to kernel/mem/dzwdz
2021-09-05remove the fd_ / fs_ prefixes from syscall namesdzwdz
2021-09-05remove unused variabledzwdz
2021-09-05don't allow calling open() if there are no empty handles leftdzwdz
2021-09-05root vfs: implement writing to /ttydzwdz
2021-09-04new vfs impl pt. 1: implement open()dzwdz
2021-09-04refactor finding empty handles to a functiondzwdz
2021-09-04nuke the old handle codedzwdz
2021-09-04rename file descriptors to handlesdzwdz
2021-08-26separate mount resolving into vfs_mount_resolvedzwdz
2021-08-25implement open() for FD_SPECIAL_TTY (`/tty`)dzwdz
2021-08-25implement FDOP_MOUNTdzwdz
2021-08-25use a tagged union for the fdop argsdzwdz
2021-08-25change the signature of _syscall_fd_mountdzwdz
2021-08-24switch to using user_ptr for pointers coming from userlanddzwdz
this avoid accidental dereferences, and now it's easy to tell apart which pointers are safe to directly read and which aren't. cons: - const is completely discarded
2021-08-24replace () with (void) in function definitionsdzwdz
`()` means that any amt of arguments will be accepted, which isn't what i want
2021-08-24move syscalls.h to shared/syscalls.hdzwdz
2021-08-24remove _syscall_debug_log, as it's not needed anymoredzwdz
2021-08-24fdop_dispatch: pass the fd struct instead of indexdzwdz
2021-08-24add some scaffolding for file descriptorsdzwdz
2021-08-22virt_iter: count bytes that were already iterated overdzwdz
2021-08-22fs_open() accepts a signed length, fixes an infinite loopdzwdz
it occureed if the path_simplify returned a negative value - instead of being interpreter as an error it just carried on, ending up in an infinite loop.
2021-08-22basic mount resolvingdzwdz
2021-08-22fs_open() stubdzwdz
2021-08-22process_switch_any: deduplicate some codedzwdz
2021-08-22fix almost all compiler warningsdzwdz
2021-08-22fix typo in _syscall_await definitiondzwdz
2021-08-22kernel: implement assertdzwdz
2021-08-22await() 2: pass the exit messagedzwdz
2021-08-18await() 1: wait for child to die, without message passingdzwdz
The length is a int, because the syscall will have a signed output. A negative return value will mean an error (such as when it gets called by a childless process).
2021-08-18fork() now has a return value; you can tell the child and parent apartdzwdz
2021-08-18rename process_clone to process_forkdzwdz
2021-08-11abstract out iterating over virtual memorydzwdz
most syscalls will have to do this to copy memory around or whatever. it's pretty ugly too, but i can't come up with a better abstraction...
2021-08-11read _syscall_debuglog arguments across page boundariesdzwdz
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