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authorTheo de Raadt <deraadt@cvs.openbsd.org>2023-04-25 04:10:22 +0000
committerTheo de Raadt <deraadt@cvs.openbsd.org>2023-04-25 04:10:22 +0000
commita58a77924dc8efd15764126514e29d1ff5138528 (patch)
tree5920d88f95ad9f8e8f2f5f1cb5c353f2263532b5 /lib/csu
parent5ef0eb0e8930de9dca8549bdeb03480e57ca3320 (diff)
Add missing endbr64 instructions as required. Verified as neccessary with
a fully IBT userland operational..
Diffstat (limited to 'lib/csu')
-rw-r--r--lib/csu/amd64/md_init.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/csu/amd64/md_init.h b/lib/csu/amd64/md_init.h
index 329c2d35950..948e7c928bb 100644
--- a/lib/csu/amd64/md_init.h
+++ b/lib/csu/amd64/md_init.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: md_init.h,v 1.9 2023/04/25 04:06:06 deraadt Exp $ */
+/* $OpenBSD: md_init.h,v 1.10 2023/04/25 04:10:21 deraadt Exp $ */
/*-
* Copyright (c) 2001 Ross Harvey
@@ -45,6 +45,7 @@
" .type " #entry_pt ",@function \n" \
" .align 16 \n" \
#entry_pt": \n" \
+ " endbr64 \n" \
" subq $8,%rsp \n" \
" .previous")
@@ -65,6 +66,7 @@
" .globl _start \n" \
"_start: \n" \
"__start: \n" \
+ " endbr64 \n" \
" movq %rdx,%rcx \n" \
" movq (%rsp),%rdi \n" \
" leaq 16(%rsp,%rdi,8),%rdx \n" \
@@ -83,6 +85,7 @@
" .type __start,@function \n" \
"_start: \n" \
"__start: \n" \
+ " endbr64 \n" \
" movq %rsp, %r12 \n" \
" subq $8, %rsp \n" \
" andq $~15, %rsp \n" \
@@ -108,6 +111,7 @@
" .type _dl_exit,@function \n" \
" .align 8 \n" \
"_dl_exit: \n" \
+ " endbr64 \n" \
" movl $ " STR(SYS_exit) ", %eax \n" \
" syscall \n" \
" int3 \n" \