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authormarcel <marcel@FreeBSD.org>2003-11-09 20:31:04 +0000
committermarcel <marcel@FreeBSD.org>2003-11-09 20:31:04 +0000
commit21340f30b3b095c29e40dbb7a9789b599a246f7e (patch)
treed88a1cc1b286d672e6999651ad44bf13ca883e02 /sys/alpha
parent87bc402cf2b4799b9d90bb4c6f45d841e78d8881 (diff)
downloadFreeBSD-src-21340f30b3b095c29e40dbb7a9789b599a246f7e.zip
FreeBSD-src-21340f30b3b095c29e40dbb7a9789b599a246f7e.tar.gz
Change the clear_ret argument of get_mcontext() to be a flags argument.
Since all callers either passed 0 or 1 for clear_ret, define bit 0 in the flags for use as clear_ret. Reserve bits 1, 2 and 3 for use by MI code for possible (but unlikely) future use. The remaining bits are for use by MD code. This change is triggered by a need on ia64 to have another knob for get_mcontext().
Diffstat (limited to 'sys/alpha')
-rw-r--r--sys/alpha/alpha/machdep.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/alpha/alpha/machdep.c b/sys/alpha/alpha/machdep.c
index 5de6070..91f90e4 100644
--- a/sys/alpha/alpha/machdep.c
+++ b/sys/alpha/alpha/machdep.c
@@ -2027,14 +2027,14 @@ set_regs(td, regs)
}
int
-get_mcontext(struct thread *td, mcontext_t *mcp, int clear_ret)
+get_mcontext(struct thread *td, mcontext_t *mcp, int flags)
{
/*
* Use a trapframe for getsetcontext, so just copy the
* threads trapframe.
*/
bcopy(td->td_frame, &mcp->mc_regs, sizeof(struct trapframe));
- if (clear_ret != 0) {
+ if (flags & GET_MC_CLEAR_RET) {
mcp->mc_regs[FRAME_V0] = 0;
mcp->mc_regs[FRAME_A4] = 0;
mcp->mc_regs[FRAME_A3] = 0;
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