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qemu: add wrapper for qemu-mips binary 

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]

(From OE-Core rev: 53b3103abdf21123b1c7be49b05cfe97a7cd9ed7)

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Laurentiu Palcu 2012-10-03 14:23:26 +03:00 committed by Richard Purdie
parent 7da9f109e8
commit 0d43dc75e4
1 changed files with 14 additions and 1 deletions
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15
meta/recipes-devtools/qemu/qemu_1.2.0.bb
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@ -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 +29,19 @@ 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!
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