fa325e9b42
Remote whitespace at the ends of lines. Remove blank lines from the ends of files. Change modes on source files so that they are not executable. Signed-off-by: Dan Cross <cross@gajendra.net>
30 lines
669 B
C
30 lines
669 B
C
#include "threadimpl.h"
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void
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makecontext(ucontext_t *uc, void (*fn)(void), int argc, ...)
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{
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uintptr *sp;
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va_list arg;
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//fprint(2, "makecontext %d\n", argc);
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if(argc != 2)
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sysfatal("libthread: makecontext misused");
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va_start(arg, argc);
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uc->mc.di = va_arg(arg, uint);
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uc->mc.si = va_arg(arg, uint);
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//fprint(2, "%ux %ux\n", uc->mc.di, uc->mc.si);
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va_end(arg);
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sp = (uintptr*)((char*)uc->uc_stack.ss_sp+uc->uc_stack.ss_size);
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*--sp = 0; // fn's return address
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*--sp = (uintptr)fn; // return address of setcontext
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uc->mc.sp = (uintptr)sp;
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}
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int
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swapcontext(ucontext_t *oucp, ucontext_t *ucp)
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{
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if(getcontext(oucp) == 0)
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setcontext(ucp);
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return 0;
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}
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