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112 lines
2.5 KiB
Tcl
112 lines
2.5 KiB
Tcl
#
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# \brief Test for using chroot on Linux
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# \author Norman Feske
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# \date 2012-04-18
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#
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#
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if {![have_spec linux]} { puts "Run script requires Linux"; exit 0 }
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#
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# Build
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#
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build { core init drivers/timer test/timer }
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if {[catch { exec which setcap }]} {
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puts stderr "Error: setcap not available, please install the libcap2-bin package"
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return 0
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}
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#
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# Clean up remains of a potentially failed previous run
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#
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proc chroot_path { } { return "/tmp/chroot-test" }
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proc chroot_cwd_path { } { return "[chroot_path][pwd]/[run_dir]" }
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proc chroot_genode_tmp_path { } { return "[chroot_path]/tmp/genode-[exec id -u]" }
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proc cleanup_chroot { } {
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umount_and_rmdir [chroot_cwd_path]
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umount_and_rmdir [chroot_path]/lib
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umount_and_rmdir [chroot_path]/lib64
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}
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create_boot_directory
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#
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# Generate config
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#
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set config {
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<config>
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<parent-provides>
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<service name="ROM"/>
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<service name="LOG"/>
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<service name="CAP"/>
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<service name="RAM"/>
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<service name="CPU"/>
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<service name="RM"/>
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<service name="PD"/>
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<service name="SIGNAL"/>
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</parent-provides>
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<default-route>
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<any-service> <parent/> <any-child/> </any-service>
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</default-route>
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<start name="timer">
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<resource name="RAM" quantum="1M"/>
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<provides><service name="Timer"/></provides>
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</start>
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<start name="test-timer" root="chroot_path">
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<resource name="RAM" quantum="1G"/>
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</start>
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</config>
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}
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# replace 'chroot_path' marker in config with actual path
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regsub "chroot_path" $config [chroot_path] config
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install_config $config
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#
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# Copy boot modules into run directory
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#
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# We cannot use the predefined 'build_boot_image' function here because
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# this would create mere symlinks. However, we want to hardlink the
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# run directory into the chroot environment. If the directory entries
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# were symlinks, those would point to nowhere within the chroot.
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#
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foreach binary { core init timer test-timer } {
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exec cp -H bin/$binary [run_dir] }
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#
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# Grant chroot permission to core
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#
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# CAP_SYS_ADMIN is needed for bind mounting genode runtime directories
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# CAP_SYS_CHROOT is needed to perform the chroot syscall
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#
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exec sudo setcap cap_sys_admin,cap_sys_chroot=ep [run_dir]/core
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#
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# Setup chroot environment
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#
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# start with fresh directory
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cleanup_chroot
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exec mkdir -p [chroot_path]
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exec mkdir -p [chroot_path]/lib
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# bind mount '/lib' as we need ldso and libc within the chroot environment
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exec sudo mount --bind /lib [chroot_path]/lib
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#
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# Execute test case
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#
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run_genode_until {.*--- timer test finished ---.*} 60
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#
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# Remove artifacts created while running the test
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#
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cleanup_chroot
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# vi: set ft=tcl :
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