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authorLinus Torvalds <torvalds@linux-foundation.org>2024-11-19 13:27:52 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2024-11-19 13:27:52 -0800
commit9d7d4ad222aea8ab482e78858d03b10221c7fe78 (patch)
treeb2e29edb5e4cdda157f629295cae0aaf1efab94f /arch/x86/kernel
parent364eeb79a213fcf9164208b53764223ad522d6b3 (diff)
parentd5173f7537505315557d8580e3a648f07f17deda (diff)
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Merge tag 'objtool-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar: - Detect non-relocated text references for more robust IBT sealing (Josh Poimboeuf) - Fix build error when building stripped down UAPI headers (HONG Yifan) - Exclude __tracepoints data from ENDBR checks to fix false positives on clang builds (Peter Zijlstra) - Fix ORC unwind for newly forked tasks (Zheng Yejian) - Fix readelf related faddr2line regression (Carlos Llamas) * tag 'objtool-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: objtool: Exclude __tracepoints data from ENDBR checks Revert "scripts/faddr2line: Check only two symbols when calculating symbol size" x86/unwind/orc: Fix unwind for newly forked tasks objtool: Also include tools/include/uapi objtool: Detect non-relocated text references
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/acpi/wakeup_64.S1
-rw-r--r--arch/x86/kernel/head_64.S1
-rw-r--r--arch/x86/kernel/unwind_orc.c2
3 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S
index 94ff83f3d3fe..b200a193beeb 100644
--- a/arch/x86/kernel/acpi/wakeup_64.S
+++ b/arch/x86/kernel/acpi/wakeup_64.S
@@ -87,6 +87,7 @@ SYM_FUNC_START(do_suspend_lowlevel)
.align 4
.Lresume_point:
+ ANNOTATE_NOENDBR
/* We don't restore %rax, it must be 0 anyway */
movq $saved_context, %rax
movq saved_context_cr4(%rax), %rbx
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 16752b8dfa89..56163e2124cf 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -77,6 +77,7 @@ SYM_CODE_START_NOALIGN(startup_64)
lretq
.Lon_kernel_cs:
+ ANNOTATE_NOENDBR
UNWIND_HINT_END_OF_STACK
#ifdef CONFIG_AMD_MEM_ENCRYPT
diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
index d00c28aaa5be..d4705a348a80 100644
--- a/arch/x86/kernel/unwind_orc.c
+++ b/arch/x86/kernel/unwind_orc.c
@@ -723,7 +723,7 @@ void __unwind_start(struct unwind_state *state, struct task_struct *task,
state->sp = task->thread.sp + sizeof(*frame);
state->bp = READ_ONCE_NOCHECK(frame->bp);
state->ip = READ_ONCE_NOCHECK(frame->ret_addr);
- state->signal = (void *)state->ip == ret_from_fork;
+ state->signal = (void *)state->ip == ret_from_fork_asm;
}
if (get_stack_info((unsigned long *)state->sp, state->task,