diff options
Diffstat (limited to 'poky/meta/classes/qemu.bbclass')
-rw-r--r-- | poky/meta/classes/qemu.bbclass | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/poky/meta/classes/qemu.bbclass b/poky/meta/classes/qemu.bbclass new file mode 100644 index 0000000000..f5c5780125 --- /dev/null +++ b/poky/meta/classes/qemu.bbclass @@ -0,0 +1,64 @@ +# +# This class contains functions for recipes that need QEMU or test for its +# existence. +# + +def qemu_target_binary(data): + package_arch = data.getVar("PACKAGE_ARCH") + qemu_target_binary = (data.getVar("QEMU_TARGET_BINARY_%s" % package_arch) or "") + if qemu_target_binary: + return qemu_target_binary + + target_arch = data.getVar("TARGET_ARCH") + if target_arch in ("i486", "i586", "i686"): + target_arch = "i386" + elif target_arch == "powerpc": + target_arch = "ppc" + elif target_arch == "powerpc64": + target_arch = "ppc64" + + return "qemu-" + target_arch + +def qemu_wrapper_cmdline(data, rootfs_path, library_paths): + import string + + qemu_binary = qemu_target_binary(data) + if qemu_binary == "qemu-allarch": + qemu_binary = "qemuwrapper" + + qemu_options = data.getVar("QEMU_OPTIONS") + + return "PSEUDO_UNLOAD=1 " + qemu_binary + " " + qemu_options + " -L " + rootfs_path\ + + " -E LD_LIBRARY_PATH=" + ":".join(library_paths) + " " + +# Next function will return a string containing the command that is needed to +# to run a certain binary through qemu. For example, in order to make a certain +# postinstall scriptlet run at do_rootfs time and running the postinstall is +# architecture dependent, we can run it through qemu. For example, in the +# postinstall scriptlet, we could use the following: +# +# ${@qemu_run_binary(d, '$D', '/usr/bin/test_app')} [test_app arguments] +# +def qemu_run_binary(data, rootfs_path, binary): + libdir = rootfs_path + data.getVar("libdir", False) + base_libdir = rootfs_path + data.getVar("base_libdir", False) + + return qemu_wrapper_cmdline(data, rootfs_path, [libdir, base_libdir]) + rootfs_path + binary + +# QEMU_EXTRAOPTIONS is not meant to be directly used, the extensions are +# PACKAGE_ARCH, *NOT* overrides. +# In some cases (e.g. ppc) simply being arch specific (apparently) isn't good +# enough and a PACKAGE_ARCH specific -cpu option is needed (hence we have to do +# this dance). For others (e.g. arm) a -cpu option is not necessary, since the +# qemu-arm default CPU supports all required architecture levels. + +QEMU_OPTIONS = "-r ${OLDEST_KERNEL} ${@d.getVar("QEMU_EXTRAOPTIONS_%s" % d.getVar('PACKAGE_ARCH')) or ""}" +QEMU_OPTIONS[vardeps] += "QEMU_EXTRAOPTIONS_${PACKAGE_ARCH}" + +QEMU_EXTRAOPTIONS_ppce500v2 = " -cpu e500v2" +QEMU_EXTRAOPTIONS_ppce500mc = " -cpu e500mc" +QEMU_EXTRAOPTIONS_ppce5500 = " -cpu e500mc" +QEMU_EXTRAOPTIONS_ppc64e5500 = " -cpu e500mc" +QEMU_EXTRAOPTIONS_ppce6500 = " -cpu e500mc" +QEMU_EXTRAOPTIONS_ppc64e6500 = " -cpu e500mc" +QEMU_EXTRAOPTIONS_ppc7400 = " -cpu 7400" |