The branch main has been updated by dchagin:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=78c2e58fa5b0aa4518d79d8155c0513b9a04f531

commit 78c2e58fa5b0aa4518d79d8155c0513b9a04f531
Author:     Dmitry Chagin <[email protected]>
AuthorDate: 2023-05-28 14:07:28 +0000
Commit:     Dmitry Chagin <[email protected]>
CommitDate: 2023-05-28 14:07:28 +0000

    linux(4): Fix stack unwinding across signal frame on x86_64
    
    Get rid of using register numbers which is undefined in libunwind
    on x86_64.
    
    Differential Revision:  https://reviews.freebsd.org/D40156
    MFC after:              1 month
---
 sys/amd64/linux/linux_locore.asm | 2 --
 1 file changed, 2 deletions(-)

diff --git a/sys/amd64/linux/linux_locore.asm b/sys/amd64/linux/linux_locore.asm
index 425b99de657a..5918fed2cad8 100644
--- a/sys/amd64/linux/linux_locore.asm
+++ b/sys/amd64/linux/linux_locore.asm
@@ -60,8 +60,6 @@ ENTRY(linux_rt_sigcode)
        .cfi_offset     %rax, L_SC_RAX
        .cfi_offset     %rcx, L_SC_RCX
        .cfi_offset     %rip, L_SC_RIP
-       .cfi_offset     49, L_SC_RFLAGS
-       .cfi_offset     %cs, L_SC_CS
        .cfi_offset     %rsp, L_SC_RSP
 
        movq    %rsp, %rbx                      /* rt_sigframe for rt_sigreturn 
*/

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