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libthread: Lion context routines

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This commit is contained in:
Russ Cox 2011-10-13 23:57:54 -04:00
parent f1825251e7
commit 04e0a9bb81
6 changed files with 129 additions and 3 deletions
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43
src/libthread/x86_64-ucontext.h Normal file
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@ -0,0 +1,43 @@
#define setcontext(u) libthread_setmcontext(&(u)->mc)
#define getcontext(u) libthread_getmcontext(&(u)->mc)
typedef struct mcontext mcontext_t;
typedef struct ucontext ucontext_t;
struct mcontext
{
uintptr ax;
uintptr bx;
uintptr cx;
uintptr dx;
uintptr si;
uintptr di;
uintptr bp;
uintptr sp;
uintptr r8;
uintptr r9;
uintptr r10;
uintptr r11;
uintptr r12;
uintptr r13;
uintptr r14;
uintptr r15;
/*
// XXX: currently do not save vector registers or floating-point state
*/
};
struct ucontext
{
struct {
void *ss_sp;
uint ss_size;
} uc_stack;
sigset_t uc_sigmask;
mcontext_t mc;
};
void makecontext(ucontext_t*, void(*)(void), int, ...);
int swapcontext(ucontext_t*, ucontext_t*);
int libthread_getmcontext(mcontext_t*);
void libthread_setmcontext(mcontext_t*);