diff options
| author | Peter Zijlstra | 2022-03-08 16:30:40 +0100 |
|---|---|---|
| committer | Peter Zijlstra | 2022-03-15 10:32:40 +0100 |
| commit | 3e3f069504344c241f89737e4af014f83fca0b27 (patch) | |
| tree | 688a7a7c08057f42a4020b1a425ad4f5f528ae36 /arch/x86/lib | |
| parent | fe379fa4d199abc52d5b4a256e52cf94eff685cf (diff) | |
x86/ibt: Annotate text references
Annotate away some of the generic code references. This is things
where we take the address of a symbol for exception handling or return
addresses (eg. context switch).
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lore.kernel.org/r/20220308154318.877758523@infradead.org
Diffstat (limited to 'arch/x86/lib')
| -rw-r--r-- | arch/x86/lib/error-inject.c | 2 | ||||
| -rw-r--r-- | arch/x86/lib/retpoline.S | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/lib/error-inject.c b/arch/x86/lib/error-inject.c index 520897061ee0..1e3de0769b81 100644 --- a/arch/x86/lib/error-inject.c +++ b/arch/x86/lib/error-inject.c @@ -3,6 +3,7 @@ #include <linux/linkage.h> #include <linux/error-injection.h> #include <linux/kprobes.h> +#include <linux/objtool.h> asmlinkage void just_return_func(void); @@ -11,6 +12,7 @@ asm( ".type just_return_func, @function\n" ".globl just_return_func\n" "just_return_func:\n" + ANNOTATE_NOENDBR ASM_RET ".size just_return_func, .-just_return_func\n" ); diff --git a/arch/x86/lib/retpoline.S b/arch/x86/lib/retpoline.S index afbdda539b80..5f87bab4fb8d 100644 --- a/arch/x86/lib/retpoline.S +++ b/arch/x86/lib/retpoline.S @@ -55,6 +55,7 @@ SYM_INNER_LABEL(__x86_indirect_thunk_\reg, SYM_L_GLOBAL) .align RETPOLINE_THUNK_SIZE SYM_CODE_START(__x86_indirect_thunk_array) + ANNOTATE_NOENDBR // apply_retpolines #define GEN(reg) THUNK reg #include <asm/GEN-for-each-reg.h> |