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libthread: use our own swapcontext/makecontext even on OS X 10.5

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This commit is contained in:
Russ Cox 2007-11-05 13:14:52 -05:00
parent 88cf592723
commit 2640996af8
2 changed files with 11 additions and 5 deletions
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11
src/libthread/threadimpl.h
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@ -21,11 +21,20 @@ extern int swapcontext(ucontext_t*, ucontext_t*);
extern void makecontext(ucontext_t*, void(*)(), int, ...);
#endif
#if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4
#if defined(__APPLE__)
/*
* OS X before 10.5 (Leopard) does not provide
* swapcontext nor makecontext, so we have to use our own.
* In theory, Leopard does provide them, but when we use
* them, they seg fault. Maybe we're using them wrong.
* So just use our own versions, even on Leopard.
*/
# define mcontext libthread_mcontext
# define mcontext_t libthread_mcontext_t
# define ucontext libthread_ucontext
# define ucontext_t libthread_ucontext_t
# define swapcontext libthread_swapcontext
# define makecontext libthread_makecontext
# if defined(__i386__)
# include "386-ucontext.h"
# else