The branch main has been updated by andrew:
URL:
https://cgit.FreeBSD.org/src/commit/?id=361da40536d7f6fc6c06d54b261c299d170ccf2f
commit 361da40536d7f6fc6c06d54b261c299d170ccf2f
Author: Andrew Turner <and...@freebsd.org>
AuthorDate: 2024-06-04 12:45:00 +0000
Commit: Andrew Turner <and...@freebsd.org>
CommitDate: 2024-06-05 09:23:40 +0000
arm64: Disable outling atomics
We don't have the symbols for this. The virtio randon number driver
uses a C11 atomic operation. With inline atomics this is translated to
an Armv8.0 atomic operation, with outling atomics this becomes a
function call to a handler. As we don't have the needed function the
kernel fails to link.
Fix by disabling outline atomics for now.
Reviewed by: brooks, imp
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D45301
---
sys/conf/kern.mk | 2 ++
1 file changed, 2 insertions(+)
diff --git a/sys/conf/kern.mk b/sys/conf/kern.mk
index d51aa1f1dfa9..106f09d80ac1 100644
--- a/sys/conf/kern.mk
+++ b/sys/conf/kern.mk
@@ -143,6 +143,8 @@ CFLAGS += -mgeneral-regs-only
CFLAGS += -ffixed-x18
# Build with BTI+PAC
CFLAGS += -mbranch-protection=standard
+# TODO: support outline atomics
+CFLAGS += -mno-outline-atomics
INLINE_LIMIT?= 8000
.endif
