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Userland: Add LibSystem and funnel all syscalls through it
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.
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47 changed files with 164 additions and 47 deletions
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@ -81,10 +81,10 @@ add_custom_command(
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set(SOURCES ${LIBC_SOURCES} ${AK_SOURCES} ${ELF_SOURCES})
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serenity_libc_static(LibCStatic c)
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target_link_libraries(LibCStatic crt0 ssp)
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add_dependencies(LibCStatic LibM)
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target_link_libraries(LibCStatic crt0 ssp system)
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add_dependencies(LibCStatic LibM LibSystem)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -static-libstdc++")
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serenity_libc(LibC c)
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target_link_libraries(LibC crt0 ssp)
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add_dependencies(LibC LibM)
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target_link_libraries(LibC crt0 ssp system)
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add_dependencies(LibC LibM LibSystem)
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