From bb2127240c5595ae4ef7115494f51e973692f64e Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Tue, 14 Feb 2012 13:56:49 -0800 Subject: x32: Add a thread flag for x32 processes An x32 process is *almost* the same thing as a 64-bit process with a 32-bit address limit, but there are a few minor differences -- in particular core dumps are 32 bits and signal handling is different. Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/thread_info.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/x86/include') diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index d1803a495b3..912e9351146 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -96,6 +96,7 @@ struct thread_info { #define TIF_LAZY_MMU_UPDATES 27 /* task is updating the mmu lazily */ #define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */ #define TIF_ADDR32 29 /* 32-bit address space on 64 bits */ +#define TIF_X32 30 /* 32-bit native x86-64 binary */ #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) @@ -118,6 +119,7 @@ struct thread_info { #define _TIF_LAZY_MMU_UPDATES (1 << TIF_LAZY_MMU_UPDATES) #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT) #define _TIF_ADDR32 (1 << TIF_ADDR32) +#define _TIF_X32 (1 << TIF_X32) /* work to do in syscall_trace_enter() */ #define _TIF_WORK_SYSCALL_ENTRY \ -- cgit v1.2.3-70-g09d2