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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org stack_trace_consume_fn has been changed to bool (*stack_trace_consume_fn)(void *cookie, struct frame_info *fi); to be able to pass more information. Turn to use pc in struct frame_info in arch_stack_walk callbacks without functinoal change. Signed-off-by: He Zhe --- arch/x86/kernel/stacktrace.c | 28 +++++++++++++++++----------- 1 file changed, 17 insertions(+), 11 deletions(-) diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c index ee117fcf46ed..c88bfbb5f157 100644 --- a/arch/x86/kernel/stacktrace.c +++ b/arch/x86/kernel/stacktrace.c @@ -16,15 +16,18 @@ void arch_stack_walk(stack_trace_consume_fn consume_entry, void *cookie, struct task_struct *task, struct pt_regs *regs) { struct unwind_state state; - unsigned long addr; + struct frame_info fi; - if (regs && !consume_entry(cookie, regs->ip)) - return; + if (regs) { + fi.pc = regs->ip; + if (!consume_entry(cookie, &fi)) + return; + } for (unwind_start(&state, task, regs, NULL); !unwind_done(&state); unwind_next_frame(&state)) { - addr = unwind_get_return_address(&state); - if (!addr || !consume_entry(cookie, addr)) + fi.pc = unwind_get_return_address(&state); + if (!fi.pc || !consume_entry(cookie, &fi)) break; } } @@ -34,7 +37,7 @@ int arch_stack_walk_reliable(stack_trace_consume_fn consume_entry, { struct unwind_state state; struct pt_regs *regs; - unsigned long addr; + struct frame_info fi; for (unwind_start(&state, task, NULL, NULL); !unwind_done(&state) && !unwind_error(&state); @@ -56,17 +59,17 @@ int arch_stack_walk_reliable(stack_trace_consume_fn consume_entry, return -EINVAL; } - addr = unwind_get_return_address(&state); + fi.pc = unwind_get_return_address(&state); /* * A NULL or invalid return address probably means there's some * generated code which __kernel_text_address() doesn't know * about. */ - if (!addr) + if (!fi.pc) return -EINVAL; - if (!consume_entry(cookie, addr)) + if (!consume_entry(cookie, &fi)) return -EINVAL; } @@ -107,8 +110,10 @@ void arch_stack_walk_user(stack_trace_consume_fn consume_entry, void *cookie, const struct pt_regs *regs) { const void __user *fp = (const void __user *)regs->bp; + struct frame_info fi; - if (!consume_entry(cookie, regs->ip)) + fi.pc = regs->ip; + if (!consume_entry(cookie, &fi)) return; while (1) { @@ -122,7 +127,8 @@ void arch_stack_walk_user(stack_trace_consume_fn consume_entry, void *cookie, break; if (!frame.ret_addr) break; - if (!consume_entry(cookie, frame.ret_addr)) + fi.pc = frame.ret_addr; + if (!consume_entry(cookie, &fi)) break; fp = frame.next_fp; } -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel