diff options
Diffstat (limited to 'arch/arm64/kernel/probes/kprobes_trampoline.S')
| -rw-r--r-- | arch/arm64/kernel/probes/kprobes_trampoline.S | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm64/kernel/probes/kprobes_trampoline.S b/arch/arm64/kernel/probes/kprobes_trampoline.S new file mode 100644 index 000000000000..b60739d3983f --- /dev/null +++ b/arch/arm64/kernel/probes/kprobes_trampoline.S @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * trampoline entry and return code for kretprobes. + */ + +#include <linux/linkage.h> +#include <asm/asm-bug.h> +#include <asm/assembler.h> + + .text + +SYM_CODE_START(__kretprobe_trampoline) + /* + * Trigger a breakpoint exception. The PC will be adjusted by + * kretprobe_brk_handler(), and no subsequent instructions will + * be executed from the trampoline. + */ + brk #KRETPROBES_BRK_IMM + ASM_BUG() +SYM_CODE_END(__kretprobe_trampoline) |