qemu-mips user emulation binary segfaults when running any kind of binary. This is due to a MMU access fault in the virtual CPU. This problem has been introduced in qemu when 4GB of vmem were reserved for 32-on-64 bit.
This workaround will need to be reverted once the proper fix is found. [YOCTO #3143] Signed-off-by: Laurentiu Palcu <[email protected]> --- meta/recipes-devtools/qemu/qemu_1.2.0.bb | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/meta/recipes-devtools/qemu/qemu_1.2.0.bb b/meta/recipes-devtools/qemu/qemu_1.2.0.bb index 191ee48..fa53e57 100644 --- a/meta/recipes-devtools/qemu/qemu_1.2.0.bb +++ b/meta/recipes-devtools/qemu/qemu_1.2.0.bb @@ -17,7 +17,7 @@ SRC_URI = "\ SRC_URI[md5sum] = "78eb1e984f4532aa9f2bdd3c127b5b61" SRC_URI[sha256sum] = "c8b84420d9f4869397f84cad2dabd9a475b7723d619a924a873740353e9df936" -PR = "r2" +PR = "r3" SRC_URI_append_virtclass-nativesdk = "\ file://relocatable_sdk.patch \ @@ -29,6 +29,20 @@ do_configure_prepend_virtclass-nativesdk() { sed -i 's/-lX11//g' Makefile.target fi } + +# The following fragment will create a wrapper for qemu-mips user emulation +# binary in order to work around a segmentation fault issue. Basically, by +# default, the reserved virtual address space for 32-on-64 bit is set to 4GB. +# This will trigger a MMU access fault in the virtual CPU. With this change, +# the qemu-mips works fine. +# IMPORTANT: This piece needs to be removed once the root cause is fixed! +inherit utils +do_install_append() { + create_wrapper ${D}/${bindir}/qemu-mips \ + QEMU_RESERVED_VA=0x0 +} +# END of qemu-mips workaround + do_configure_prepend_virtclass-native() { # Undo the -lX11 added by linker-flags.patch, don't assume that host has libX11 installed sed -i 's/-lX11//g' Makefile.target -- 1.7.9.5 _______________________________________________ Openembedded-core mailing list [email protected] http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
