[net-next-2.6.git] / arch / x86 / kernel / sigframe.h

#ifdef CONFIG_X86_32
struct sigframe {
	char __user *pretcode;
	int sig;
	struct sigcontext 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 fpstate_unused;
	unsigned long extramask[_NSIG_WORDS-1];
	char retcode[8];
	/* fp state follows here */
};

struct rt_sigframe {
	char __user *pretcode;
	int sig;
	struct siginfo __user *pinfo;
	void __user *puc;
	struct siginfo info;
	struct ucontext uc;
	char retcode[8];
	/* fp state follows here */
};
#else
struct rt_sigframe {
	char __user *pretcode;
	struct ucontext uc;
	struct siginfo info;
	/* fp state follows here */
};
#endif
Commit	Line	Data
123a6347 HH	1	#ifdef CONFIG_X86_32
123a6347 HH	2	struct sigframe {
fc0b1af2	3	char __user *pretcode;
1da177e4 LT	4	int sig;
1da177e4 LT	5	struct sigcontext sc;
3c1c7f10 SS	6	/*
	7	* fpstate is unused. fpstate is moved/allocated after
	8	* retcode[] below. This movement allows to have the FP state and the
	9	* future state extensions (xsave) stay together.
	10	* And at the same time retaining the unused fpstate, prevents changing
	11	* the offset of extramask[] in the sigframe and thus prevent any
	12	* legacy application accessing/modifying it.
	13	*/
	14	struct _fpstate fpstate_unused;
1da177e4 LT	15	unsigned long extramask[_NSIG_WORDS-1];
1da177e4 LT	16	char retcode[8];
3c1c7f10	17	/* fp state follows here */
1da177e4 LT	18	};
1da177e4 LT	19
123a6347	20	struct rt_sigframe {
fc0b1af2	21	char __user *pretcode;
1da177e4	22	int sig;
fc0b1af2 AV	23	struct siginfo __user *pinfo;
fc0b1af2 AV	24	void __user *puc;
1da177e4 LT	25	struct siginfo info;
1da177e4 LT	26	struct ucontext uc;
1da177e4	27	char retcode[8];
3c1c7f10	28	/* fp state follows here */
1da177e4	29	};
123a6347 HH	30	#else
	31	struct rt_sigframe {
	32	char __user *pretcode;
	33	struct ucontext uc;
	34	struct siginfo info;
3c1c7f10	35	/* fp state follows here */
123a6347 HH	36	};
123a6347 HH	37	#endif