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Userland: Add LibSystem and funnel all syscalls through it

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This achieves two things:

- Programs can now intentionally perform arbitrary syscalls by calling
  syscall(). This allows us to work on things like syscall fuzzing.

- It restricts the ability of userspace to make syscalls to a single
  4KB page of code. In order to call the kernel directly, an attacker
  must now locate this page and call through it.
This commit is contained in:
Andreas Kling 2021-02-05 12:16:30 +01:00
parent 4df3a34bc2
commit e87eac9273
47 changed files with 164 additions and 47 deletions
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1
Userland/Libraries/CMakeLists.txt
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@ -27,6 +27,7 @@ add_subdirectory(LibProtocol)
add_subdirectory(LibPthread)
add_subdirectory(LibRegex)
add_subdirectory(LibSymbolClient)
add_subdirectory(LibSystem)
add_subdirectory(LibTar)
add_subdirectory(LibTextCodec)
add_subdirectory(LibThread)