The branch stable/13 has been updated by kib:
URL:
https://cgit.FreeBSD.org/src/commit/?id=6c74b122953d6981278c2061bc1b60d1d764c020
commit 6c74b122953d6981278c2061bc1b60d1d764c020
Author: Konstantin Belousov <k...@freebsd.org>
AuthorDate: 2021-04-09 23:22:48 +0000
Commit: Konstantin Belousov <k...@freebsd.org>
CommitDate: 2021-04-23 11:14:08 +0000
amd64 linux64: use x86_clear_dbregs()
(cherry picked from commit 2f1588474768f61f3a983af207e753bd0340a9e7)
---
sys/amd64/linux/linux_sysvec.c | 22 +---------------------
1 file changed, 1 insertion(+), 21 deletions(-)
diff --git a/sys/amd64/linux/linux_sysvec.c b/sys/amd64/linux/linux_sysvec.c
index abc750c63682..252579a4809e 100644
--- a/sys/amd64/linux/linux_sysvec.c
+++ b/sys/amd64/linux/linux_sysvec.c
@@ -477,27 +477,7 @@ linux_exec_setregs(struct thread *td, struct image_params
*imgp,
regs->tf_gs = _ugssel;
regs->tf_flags = TF_HASSEGS;
- /*
- * Reset the hardware debug registers if they were in use.
- * They won't have any meaning for the newly exec'd process.
- */
- if (pcb->pcb_flags & PCB_DBREGS) {
- pcb->pcb_dr0 = 0;
- pcb->pcb_dr1 = 0;
- pcb->pcb_dr2 = 0;
- pcb->pcb_dr3 = 0;
- pcb->pcb_dr6 = 0;
- pcb->pcb_dr7 = 0;
- if (pcb == curpcb) {
- /*
- * Clear the debug registers on the running
- * CPU, otherwise they will end up affecting
- * the next process we switch to.
- */
- reset_dbregs();
- }
- clear_pcb_flags(pcb, PCB_DBREGS);
- }
+ x86_clear_dbregs(pcb);
/*
* Drop the FP state if we hold it, so that the process gets a
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