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authorGustavo Zacarias <gustavo@zacarias.com.ar>2016-10-13 10:02:48 -0300
committerPeter Korsgaard <peter@korsgaard.com>2016-10-13 21:42:40 +0200
commit477756b257c4b72e03679b9142104860e1d4dabc (patch)
tree51e8e3a3fdaa6d13437fe3ab413ce57308b53107 /board/qemu/m68k-mcf5208/patches/linux/m68knommu-fix-signal.patch
parent7341abaff3518bee74463d63f0ce52ef253886de (diff)
downloadbuildroot-477756b257c4b72e03679b9142104860e1d4dabc.tar.gz
buildroot-477756b257c4b72e03679b9142104860e1d4dabc.zip
configs/qemu: bump to the latest kernel version
Drop m68k-mcf5208 kernel patch since it's upstream. Also bump the pc samples since they're tied to the (base) qemu config. Results table: Defconfig Kernel Qemu Network Status -------------------------------------------------------------- aarch64_virt 4.8.1 2.6.0 YES OK (3) arm_versatile 4.8.1 2.5.0 YES OK arm_vexpress 4.8.1 2.5.0 YES OK m68k_mcf5208 4.8.1 2.5.0 YES OK m68k_q800 4.8.1 q800-v2.4.0 NO (2) OK microblazebe 4.8.1 2.5.0 YES OK microblazeel 4.8.1 2.5.0 YES OK mips32r2el_malta 4.8.1 2.5.0 YES OK mips32r2_malta 4.8.1 2.5.0 YES OK mips32r6el_malta 4.8.1 2.6.0 YES OK (3) mips32r6_malta 4.8.1 2.6.0 YES OK (3) mips64el_malta 4.8.1 2.5.0 YES OK mips64_malta 4.8.1 2.5.0 YES OK mips64r6el_malta 4.8.1 2.7.0 YES OK (3)(4) mips64r6_malta 4.8.1 2.7.0 YES OK (3)(4) ppc_g3beige 4.8.1 2.5.0 YES OK ppc_mpc8544ds 4.8.1 2.5.0 YES OK ppc_virtex_ml507 4.8.1 2.5.0 NO OK ppc64_pseries 4.8.1 2.5.0 YES OK sh4 4.8.1 2.5.0 YES OK sh4eb 4.8.1 2.5.0 NO (1) OK sparc_ss10 4.8.1 2.5.0 YES OK sparc64_sun4u 4.8.1 2.5.0 YES OK sparc_sun4u 4.8.1 2.5.0 YES OK x86 4.8.1 2.5.0 YES OK x86_64 4.8.1 2.5.0 YES OK xtensa_lx60 4.8.1 2.6.0 YES OK xtensa_lx60_nommu 4.8.1 2.6.0 YES OK (1) - Probably an endian issue with 8139 emulation/driver (2) - There's a network interface, but enabling it in qemu fails (3) - Known to fail with qemu versions lower than 2.6.0 (4) - Might work with 2.6.0, but the cpu definition changed in 2.7.0 Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Diffstat (limited to 'board/qemu/m68k-mcf5208/patches/linux/m68knommu-fix-signal.patch')
-rw-r--r--board/qemu/m68k-mcf5208/patches/linux/m68knommu-fix-signal.patch45
1 files changed, 0 insertions, 45 deletions
diff --git a/board/qemu/m68k-mcf5208/patches/linux/m68knommu-fix-signal.patch b/board/qemu/m68k-mcf5208/patches/linux/m68knommu-fix-signal.patch
deleted file mode 100644
index b56994b239..0000000000
--- a/board/qemu/m68k-mcf5208/patches/linux/m68knommu-fix-signal.patch
+++ /dev/null
@@ -1,45 +0,0 @@
-m68knommu: fix user a5 register being overwritten
-
-On no-MMU systems the application a5 register can be overwitten with the
-address of the process data segment when processing application signals.
-For flat format applications compiled with full absolute relocation this
-effectively corrupts the a5 register on signal processing - and this very
-quickly leads to process crash and often takes out the whole system with
-a panic as well.
-
-This has no effect on flat format applications compiled with the more
-common PIC methods (such as -msep-data). These format applications reserve
-a5 for the pointer to the data segment anyway - so it doesn't change it.
-
-A long time ago the a5 register was used in the code packed into the user
-stack to enable signal return processing. And so it had to be restored on
-end of signal cleanup processing back to the original a5 user value. This
-was historically done by saving away a5 in the sigcontext structure. At
-some point (a long time back it seems) the a5 restore process was changed
-and it was hard coded to put the user data segment address directly into a5.
-Which is ok for the common PIC compiled application case, but breaks the
-full relocation application code.
-
-We no longer use this type of signal handling mechanism and so we don't
-need to do anything special to save and restore a5 at all now. So remove the
-code that hard codes a5 to the address of the user data segment.
-
-Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
----
- arch/m68k/kernel/signal.c | 1 -
- 1 file changed, 1 deletion(-)
-
-diff --git a/arch/m68k/kernel/signal.c b/arch/m68k/kernel/signal.c
-index 2dcee3a..9202f82 100644
---- a/arch/m68k/kernel/signal.c
-+++ b/arch/m68k/kernel/signal.c
-@@ -213,7 +213,6 @@ static inline int frame_extra_sizes(int f)
-
- static inline void adjustformat(struct pt_regs *regs)
- {
-- ((struct switch_stack *)regs - 1)->a5 = current->mm->start_data;
- /*
- * set format byte to make stack appear modulo 4, which it will
- * be when doing the rte
---
-1.9.1
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