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[AVR32] Add TIF_RESTORE_SIGMASK to the work masks

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We really need to check TIF_RESTORE_SIGMASK before returning to
userspace. The existing code does not necessarily do this.

Define the work masks as a bitwise OR of the respective flags instead
of a hardcoded hex value to make it easier to spot errors like this in
the future.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
This commit is contained in:
Haavard Skinnemoen 2007-11-27 14:10:58 +01:00
parent f194d132e4
commit 702f22b306
1 changed files with 11 additions and 4 deletions
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15
include/asm-avr32/thread_info.h
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@ -95,12 +95,19 @@ static inline struct thread_info *current_thread_info(void)
#define _TIF_RESTORE_SIGMASK (1 << TIF_RESTORE_SIGMASK)
#define _TIF_CPU_GOING_TO_SLEEP (1 << TIF_CPU_GOING_TO_SLEEP)
/* XXX: These two masks must never span more than 16 bits! */
/* Note: The masks below must never span more than 16 bits! */
/* work to do on interrupt/exception return */
#define _TIF_WORK_MASK 0x0000013e
#define _TIF_WORK_MASK \
((1 << TIF_SIGPENDING) \
| (1 << TIF_NEED_RESCHED) \
| (1 << TIF_POLLING_NRFLAG) \
| (1 << TIF_BREAKPOINT) \
| (1 << TIF_RESTORE_SIGMASK))
/* work to do on any return to userspace */
#define _TIF_ALLWORK_MASK 0x0000013f
#define _TIF_ALLWORK_MASK (_TIF_WORK_MASK | (1 << TIF_SYSCALL_TRACE))
/* work to do on return from debug mode */
#define _TIF_DBGWORK_MASK 0x0000017e
#define _TIF_DBGWORK_MASK (_TIF_WORK_MASK | (1 << TIF_SINGLE_STEP))
#endif /* __ASM_AVR32_THREAD_INFO_H */