From 8951eb1530ddf83dbb815d38e97afddc6a0d1140 Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Tue, 12 Nov 2019 08:43:25 -0800 Subject: xtensa: make stack dump size configurable Introduce Kconfig symbol PRINT_STACK_DEPTH and use it to initialize kstack_depth_to_print. Reviewed-by: Petr Mladek Signed-off-by: Max Filippov --- arch/xtensa/Kconfig.debug | 7 +++++++ arch/xtensa/kernel/traps.c | 2 +- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/xtensa/Kconfig.debug b/arch/xtensa/Kconfig.debug index 39de98e20018..83cc8d12fa0e 100644 --- a/arch/xtensa/Kconfig.debug +++ b/arch/xtensa/Kconfig.debug @@ -31,3 +31,10 @@ config S32C1I_SELFTEST It is easy to make wrong hardware configuration, this test should catch it early. Say 'N' on stable hardware. + +config PRINT_STACK_DEPTH + int "Stack depth to print" if DEBUG_KERNEL + default 64 + help + This option allows you to set the stack depth that the kernel + prints in stack traces. diff --git a/arch/xtensa/kernel/traps.c b/arch/xtensa/kernel/traps.c index be26ec6c0e0e..87bd68dd7687 100644 --- a/arch/xtensa/kernel/traps.c +++ b/arch/xtensa/kernel/traps.c @@ -495,7 +495,7 @@ void show_trace(struct task_struct *task, unsigned long *sp) #define STACK_DUMP_ENTRY_SIZE 4 #define STACK_DUMP_LINE_SIZE 32 -static size_t kstack_depth_to_print = 24; +static size_t kstack_depth_to_print = CONFIG_PRINT_STACK_DEPTH; void show_stack(struct task_struct *task, unsigned long *sp) { -- cgit v1.2.3-59-g8ed1b