[deliverable/linux.git] / arch / x86 / kernel / sigframe.h

#ifdef CONFIG_X86_32
#define sigframe_ia32		sigframe
#define rt_sigframe_ia32	rt_sigframe
#define sigcontext_ia32		sigcontext
#define _fpstate_ia32		_fpstate
#define ucontext_ia32		ucontext

struct sigframe_ia32 {
	u32 pretcode;
	int sig;
	struct sigcontext_ia32 sc;
	/*
	 * fpstate is unused. fpstate is moved/allocated after
	 * retcode[] below. This movement allows to have the FP state and the
	 * future state extensions (xsave) stay together.
	 * And at the same time retaining the unused fpstate, prevents changing
	 * the offset of extramask[] in the sigframe and thus prevent any
	 * legacy application accessing/modifying it.
	 */
	struct _fpstate_ia32 fpstate_unused;
	unsigned long extramask[_NSIG_WORDS-1];
	char retcode[8];
	/* fp state follows here */
};

struct rt_sigframe_ia32 {
	u32 pretcode;
	int sig;
	u32 pinfo;
	u32 puc;
	struct siginfo info;
	struct ucontext_ia32 uc;
	char retcode[8];
	/* fp state follows here */
};
#else /* !CONFIG_X86_32 */
struct rt_sigframe {
	char __user *pretcode;
	struct ucontext uc;
	struct siginfo info;
	/* fp state follows here */
};
#endif /* CONFIG_X86_32 */
Commit	Line	Data
123a6347	1	#ifdef CONFIG_X86_32
a5c56eb3 HS	2	#define sigframe_ia32 sigframe
	3	#define rt_sigframe_ia32 rt_sigframe
	4	#define sigcontext_ia32 sigcontext
	5	#define _fpstate_ia32 _fpstate
	6	#define ucontext_ia32 ucontext
	7
	8	struct sigframe_ia32 {
	9	u32 pretcode;
1da177e4	10	int sig;
a5c56eb3	11	struct sigcontext_ia32 sc;
3c1c7f10 SS	12	/*
	13	* fpstate is unused. fpstate is moved/allocated after
	14	* retcode[] below. This movement allows to have the FP state and the
	15	* future state extensions (xsave) stay together.
	16	* And at the same time retaining the unused fpstate, prevents changing
	17	* the offset of extramask[] in the sigframe and thus prevent any
	18	* legacy application accessing/modifying it.
	19	*/
a5c56eb3	20	struct _fpstate_ia32 fpstate_unused;
1da177e4 LT	21	unsigned long extramask[_NSIG_WORDS-1];
1da177e4 LT	22	char retcode[8];
3c1c7f10	23	/* fp state follows here */
1da177e4 LT	24	};
1da177e4 LT	25
a5c56eb3 HS	26	struct rt_sigframe_ia32 {
a5c56eb3 HS	27	u32 pretcode;
1da177e4	28	int sig;
a5c56eb3 HS	29	u32 pinfo;
a5c56eb3 HS	30	u32 puc;
1da177e4	31	struct siginfo info;
a5c56eb3	32	struct ucontext_ia32 uc;
1da177e4	33	char retcode[8];
3c1c7f10	34	/* fp state follows here */
1da177e4	35	};
a5c56eb3	36	#else /* !CONFIG_X86_32 */
123a6347 HH	37	struct rt_sigframe {
	38	char __user *pretcode;
	39	struct ucontext uc;
	40	struct siginfo info;
3c1c7f10	41	/* fp state follows here */
123a6347	42	};
a5c56eb3	43	#endif /* CONFIG_X86_32 */