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| author | Peter Wemm <peter@FreeBSD.org> | 2004-08-16 22:57:13 +0000 |
|---|---|---|
| committer | Peter Wemm <peter@FreeBSD.org> | 2004-08-16 22:57:13 +0000 |
| commit | b93b95f67f92b856e5fef813a9fa891b215815b6 (patch) | |
| tree | 23b697de3e6af00394d5b78012c0dfa8cde736be /sys/amd64/amd64/vm_machdep.c | |
| parent | 717209c708b64b830f8cd4fbff7a9ef2d49d1481 (diff) | |
| download | src-b93b95f67f92b856e5fef813a9fa891b215815b6.tar.gz src-b93b95f67f92b856e5fef813a9fa891b215815b6.zip | |
Sync with i386 - set rbp reg to 0 for upcalls as a frame marker, not that
it is guaranteed to be used in userland though.
Notes
Notes:
svn path=/head/; revision=133902
Diffstat (limited to 'sys/amd64/amd64/vm_machdep.c')
| -rw-r--r-- | sys/amd64/amd64/vm_machdep.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/amd64/amd64/vm_machdep.c b/sys/amd64/amd64/vm_machdep.c index 512163236dbc..a33679d21549 100644 --- a/sys/amd64/amd64/vm_machdep.c +++ b/sys/amd64/amd64/vm_machdep.c @@ -314,6 +314,7 @@ cpu_set_upcall_kse(struct thread *td, struct kse_upcall *ku) * Set the trap frame to point at the beginning of the uts * function. */ + td->td_frame->tf_rbp = 0; td->td_frame->tf_rsp = ((register_t)ku->ku_stack.ss_sp + ku->ku_stack.ss_size) & ~0x0f; td->td_frame->tf_rsp -= 8; |