git: 2df4032d7e8c - stable/13 - linux(4): Fix stack unwinding across signal frame on x86_64
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Date: Thu, 29 Jun 2023 08:20:47 UTC
The branch stable/13 has been updated by dchagin:
URL: https://cgit.FreeBSD.org/src/commit/?id=2df4032d7e8c5bdd2a0f498771787fae6b358811
commit 2df4032d7e8c5bdd2a0f498771787fae6b358811
Author: Dmitry Chagin <dchagin@FreeBSD.org>
AuthorDate: 2023-05-28 14:07:28 +0000
Commit: Dmitry Chagin <dchagin@FreeBSD.org>
CommitDate: 2023-06-29 08:16:02 +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
(cherry picked from commit 78c2e58fa5b0aa4518d79d8155c0513b9a04f531)
---
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 f26996980007..2d7dff839b6f 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 */