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@canb.auug.org.au 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