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libthread: rm FreeBSD 4 code

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Pretty sure FreeBSD 4 is gone now. :-)
This commit is contained in:
Russ Cox 2020-01-19 21:25:33 -05:00
parent d15607b9dd
commit 8dcb18f71b
7 changed files with 54 additions and 504 deletions
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9
src/libthread/threadimpl.h
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@ -15,15 +15,6 @@
#include "libc.h"
#include "thread.h"
#if defined(__FreeBSD__) && __FreeBSD__ < 5
extern int getmcontext(mcontext_t*);
extern void setmcontext(mcontext_t*);
#define setcontext(u) setmcontext(&(u)->uc_mcontext)
#define getcontext(u) getmcontext(&(u)->uc_mcontext)
extern int swapcontext(ucontext_t*, ucontext_t*);
extern void makecontext(ucontext_t*, void(*)(), int, ...);
#endif
#if defined(__APPLE__)
/*
* OS X before 10.5 (Leopard) does not provide