bef0e3eb63
swapcontext, and makecontext). - Fix VM to not erroneously think the stack segment and data segment have collided when a user-space thread invokes brk(). - Add test51 to test ucontext functionality. - Add man pages for ucontext system calls.
22 lines
741 B
C
22 lines
741 B
C
#ifndef _SYS_UCONTEXT_H
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#define _SYS_UCONTEXT_H 1
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#include <signal.h>
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#include <machine/mcontext.h>
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#define NCARGS 6
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#define UCF_SWAPPED 001 /* Context has been swapped in by swapcontext(3) */
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#define UCF_IGNFPU 002 /* Ignore FPU context by get or setcontext(3) */
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#define UCF_IGNSIGM 004 /* Ignore signal mask by get or setcontext(3) */
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typedef struct __ucontext ucontext_t;
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struct __ucontext {
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unsigned int uc_flags; /* Properties of ucontext */
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ucontext_t *uc_link; /* Next context to resume when current is finished */
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mcontext_t uc_mcontext; /* Machine state */
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sigset_t uc_sigmask; /* Signals blocked in this context */
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stack_t uc_stack; /* The stack used by this context */
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};
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#endif /* _SYS_UCONTEXT_H */
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