From 0d43dc75e4ddf9b8966429f41355cb2e8895d0e2 Mon Sep 17 00:00:00 2001 From: Laurentiu Palcu Date: Wed, 3 Oct 2012 14:23:26 +0300 Subject: 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 Signed-off-by: Richard Purdie --- meta/recipes-devtools/qemu/qemu_1.2.0.bb | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) (limited to 'meta') diff --git a/meta/recipes-devtools/qemu/qemu_1.2.0.bb b/meta/recipes-devtools/qemu/qemu_1.2.0.bb index 191ee48e06..cbdb4d472b 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 +29,19 @@ 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 -- cgit v1.2.3-54-g00ecf