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Commit e39c2891 authored by Roland McGrath's avatar Roland McGrath Committed by Ingo Molnar
Browse files

x86: ptrace FLAG_MASK cleanup 



This cleans up the FLAG_MASK macro to use symbolic constants instead of a
magic number.

Signed-off-by: default avatarRoland McGrath <roland@redhat.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent d52e9d69

arch/x86/kernel/ptrace.c

+8 −3
Original line number Diff line number Diff line
@@ -32,10 +32,15 @@ 


/*

 * Determines which flags the user has access to [1 = access, 0 = no access].

 * Prohibits changing ID(21), VIP(20), VIF(19), VM(17), NT(14), IOPL(12-13), IF(9).

 * Also masks reserved bits (31-22, 15, 5, 3, 1).

 */

#define FLAG_MASK 0x00050dd5

#define FLAG_MASK_32		((unsigned long)			\

				 (X86_EFLAGS_CF | X86_EFLAGS_PF |	\

				  X86_EFLAGS_AF | X86_EFLAGS_ZF |	\

				  X86_EFLAGS_SF | X86_EFLAGS_TF |	\

				  X86_EFLAGS_DF | X86_EFLAGS_OF |	\

				  X86_EFLAGS_RF | X86_EFLAGS_AC))



#define FLAG_MASK		FLAG_MASK_32



static long *pt_regs_access(struct pt_regs *regs, unsigned long regno)

{