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Kernel: Reintroduce the msyscall syscall as the annotate_mapping syscall

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This syscall will be used later on to ensure we can declare virtual
memory mappings as immutable (which means that the underlying Region is
basically immutable for both future annotations or changing the
protection bits of it).
This commit is contained in:
Liav A 2022-12-15 20:38:19 +02:00 • committed by Andrew Kaster
parent 1b5a565e55
commit 6c0486277e
8 changed files with 36 additions and 11 deletions
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2
Kernel/Process.h
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@ -320,6 +320,7 @@ public:
ErrorOr<FlatPtr> sys$pwritev(int fd, Userspace<const struct iovec*> iov, int iov_count, Userspace<off_t const*>);
ErrorOr<FlatPtr> sys$fstat(int fd, Userspace<stat*>);
ErrorOr<FlatPtr> sys$stat(Userspace<Syscall::SC_stat_params const*>);
ErrorOr<FlatPtr> sys$annotate_mapping(Userspace<void*>, int flags);
ErrorOr<FlatPtr> sys$lseek(int fd, Userspace<off_t*>, int whence);
ErrorOr<FlatPtr> sys$ftruncate(int fd, Userspace<off_t const*>);
ErrorOr<FlatPtr> sys$posix_fallocate(int fd, Userspace<off_t const*>, Userspace<off_t const*>);
@ -333,7 +334,6 @@ public:
ErrorOr<FlatPtr> sys$set_mmap_name(Userspace<Syscall::SC_set_mmap_name_params const*>);
ErrorOr<FlatPtr> sys$mprotect(Userspace<void*>, size_t, int prot);
ErrorOr<FlatPtr> sys$madvise(Userspace<void*>, size_t, int advice);
ErrorOr<FlatPtr> sys$msyscall(Userspace<void*>);
ErrorOr<FlatPtr> sys$msync(Userspace<void*>, size_t, int flags);
ErrorOr<FlatPtr> sys$purge(int mode);
ErrorOr<FlatPtr> sys$poll(Userspace<Syscall::SC_poll_params const*>);