Date: Tue, 15 Oct 2024 17:25:16 GMT From: Andrew Turner <andrew@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 8803e789393c - main - arm64: Stop setting x0 for pcb_onfault handlers Message-ID: <202410151725.49FHPGa4028109@gitrepo.freebsd.org>
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The branch main has been updated by andrew: URL: https://cgit.FreeBSD.org/src/commit/?id=8803e789393c504cafedb478a1619aab363c2aa5 commit 8803e789393c504cafedb478a1619aab363c2aa5 Author: Andrew Turner <andrew@FreeBSD.org> AuthorDate: 2024-10-14 14:36:05 +0000 Commit: Andrew Turner <andrew@FreeBSD.org> CommitDate: 2024-10-15 17:24:42 +0000 arm64: Stop setting x0 for pcb_onfault handlers All handlers set x0 before returning, there is no need to also do so in the data abort exception handler. Reviewed by: markj Sponsored by: Arm Ltd Differential Revision: https://reviews.freebsd.org/D46814 --- sys/arm64/arm64/trap.c | 1 - 1 file changed, 1 deletion(-) diff --git a/sys/arm64/arm64/trap.c b/sys/arm64/arm64/trap.c index fa0b46111a34..fa1132305067 100644 --- a/sys/arm64/arm64/trap.c +++ b/sys/arm64/arm64/trap.c @@ -375,7 +375,6 @@ data_abort(struct thread *td, struct trapframe *frame, uint64_t esr, bad_far: if (td->td_intr_nesting_level == 0 && pcb->pcb_onfault != 0) { - frame->tf_x[0] = error; frame->tf_elr = pcb->pcb_onfault; return; }
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