From e5888a1ffdae813d7575f5fb02275c6bb07e5199 Mon Sep 17 00:00:00 2001 From: Taru Karttunen Date: Wed, 30 Mar 2011 15:46:40 +0300 Subject: Import sources from 2011-03-30 iso image --- sys/src/libthread/alpha.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100755 sys/src/libthread/alpha.c (limited to 'sys/src/libthread/alpha.c') diff --git a/sys/src/libthread/alpha.c b/sys/src/libthread/alpha.c new file mode 100755 index 000000000..e74855346 --- /dev/null +++ b/sys/src/libthread/alpha.c @@ -0,0 +1,32 @@ +#include +#include +#include +#include "threadimpl.h" + +/* first argument goes in a register and on the stack; avoid it */ +static void +launcheralpha(int, void (*f)(void *arg), void *arg) +{ + (*f)(arg); + threadexits(nil); +} + +void +_threadinitstack(Thread *t, void (*f)(void*), void *arg) +{ + ulong *tos; + + tos = (ulong*)&t->stk[t->stksize&~7]; + + *--tos = 0; /* pad arguments to 8 bytes */ + *--tos = (ulong)arg; + *--tos = (ulong)f; + *--tos = 0; /* first arg */ + + *--tos = 0; /* for alignment with... */ + *--tos = 0; /* ... place to store return PC */ + + t->sched[JMPBUFPC] = (ulong)launcheralpha+JMPBUFDPC; + t->sched[JMPBUFSP] = (ulong)tos; +} + -- cgit v1.2.3