Files
poky/meta/classes/qemu.bbclass
Laurentiu Palcu 2435d807d1 postinst-intercepts, qemu.bbclass: fix segfaults in postinstalls
Postinstalls that use qemu are throwing a segmentation fault when
building for qemux86-64 on a 64bit host (it might also happen for
qemux86 if building on a 32bit host but I didn't test). It looks like
qemu looks for ld.so.cache which is not found because it is generated
after rootfs_(rpm|ipk|deb)_do_rootfs is called and then it tries to load
libraries from the default paths (which are the host's). In order to
avoid this, pass the LD_LIBRARY_PATH explicitly to the target's dynamic
loader.

(From OE-Core rev: 48e8b613b3f5c7b1d917bf3147606d44072ce49e)

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2013-04-10 12:56:52 +01:00

38 lines
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#
# This class contains functions for recipes that need QEMU or test for its
# existence.
#
def qemu_target_binary(data):
target_arch = data.getVar("TARGET_ARCH_MULTILIB_ORIGINAL", True)
if not target_arch:
target_arch = data.getVar("TARGET_ARCH", True)
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
#
# 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):
qemu_binary = qemu_target_binary(data)
if qemu_binary == "qemu-allarch":
qemu_binary = "qemuwrapper"
libdir = rootfs_path + data.getVar("libdir", False)
base_libdir = rootfs_path + data.getVar("base_libdir", False)
return "PSEUDO_UNLOAD=1 " + qemu_binary + " -L " + rootfs_path\
+ " -E LD_LIBRARY_PATH=" + libdir + ":" + base_libdir + " "\
+ rootfs_path + binary