diff options
Diffstat (limited to 'support/support.h')
-rw-r--r-- | support/support.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/support/support.h b/support/support.h index 9ec8ecb8d7..dbd270c78d 100644 --- a/support/support.h +++ b/support/support.h @@ -164,6 +164,25 @@ timer_t support_create_timer (uint64_t sec, long int nsec, bool repeat, /* Disable the timer TIMER. */ void support_delete_timer (timer_t timer); +struct support_stack +{ + void *stack; + size_t size; + size_t guardsize; +}; + +/* Allocate stack suitable to used with xclone or sigaltstack call. The stack + will have a minimum size of SIZE + MINSIGSTKSZ bytes, rounded up to a whole + number of pages. There will be a large (at least 1 MiB) inaccessible guard + bands on either side of it. + The returned value on ALLOC_BASE and ALLOC_SIZE will be the usable stack + region, excluding the GUARD_SIZE allocated area. + It also terminates the process on error. */ +struct support_stack support_stack_alloc (size_t size); + +/* Deallocate the STACK. */ +void support_stack_free (struct support_stack *stack); + __END_DECLS #endif /* SUPPORT_H */ |