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98d0ac38ca
The vsyscall page now consists entirely of trap instructions. Cc: John Stultz <johnstul@us.ibm.com> Signed-off-by: Andy Lutomirski <luto@mit.edu> Link: http://lkml.kernel.org/r/637648f303f2ef93af93bae25186e9a1bea093f5.1310639973.git.luto@mit.edu Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
28 lines
561 B
C
28 lines
561 B
C
#ifndef _ASM_X86_VGTOD_H
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#define _ASM_X86_VGTOD_H
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#include <asm/vsyscall.h>
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#include <linux/clocksource.h>
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struct vsyscall_gtod_data {
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seqlock_t lock;
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/* open coded 'struct timespec' */
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time_t wall_time_sec;
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u32 wall_time_nsec;
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struct timezone sys_tz;
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struct { /* extract of a clocksource struct */
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int vclock_mode;
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cycle_t cycle_last;
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cycle_t mask;
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u32 mult;
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u32 shift;
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} clock;
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struct timespec wall_to_monotonic;
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struct timespec wall_time_coarse;
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};
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extern struct vsyscall_gtod_data vsyscall_gtod_data;
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#endif /* _ASM_X86_VGTOD_H */
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