Hi Andrew,
Today's linux-next merge of the akpm tree got a conflict in
arch/x86/Kconfig between commit 5fd92e65a68b ("x32: Allow x32 to be
configured") from the tip tree and commit "ipc: provide generic compat
versions of IPC syscalls" from the akpm tree.
Just context changes. I fixed it up (see below) and can carry the fix as
necessary.
--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
diff --cc arch/x86/Kconfig
index 14b78d7,6f6807d..0000000
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@@ -2206,22 -2206,10 +2206,23 @@@ config IA32_AOU
---help---
Support old a.out binaries in the 32bit emulation.
+config X86_X32_ABI
+ bool "x32 ABI for 64-bit mode (EXPERIMENTAL)"
+ depends on X86_64 && IA32_EMULATION && EXPERIMENTAL && BROKEN
+ ---help---
+ Include code to run binaries for the x32 native 32-bit ABI
+ for 64-bit processors. An x32 process gets access to the
+ full 64-bit register file and wide data path while leaving
+ pointers at 32 bits for smaller memory footprint.
+
+ You will need a recent binutils (2.22 or later) with
+ elf32_x86_64 support enabled to compile a kernel with this
+ option set.
+
config COMPAT
def_bool y
- depends on IA32_EMULATION
+ depends on IA32_EMULATION || X86_X32_ABI
+ select ARCH_WANT_OLD_COMPAT_IPC
config COMPAT_FOR_U64_ALIGNMENT
def_bool COMPAT
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