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authorMax Filippov <jcmvbkbc@gmail.com>2019-11-12 08:43:25 -0800
committerMax Filippov <jcmvbkbc@gmail.com>2019-11-26 11:33:39 -0800
commit8951eb1530ddf83dbb815d38e97afddc6a0d1140 (patch)
tree5644832fa8897c78777d75ceba0a0b11ffa1cdfb /arch/xtensa
parentc5fccebc138b1f5a5b57acecdbf1530e41ebea17 (diff)
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 <pmladek@suse.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa')
-rw-r--r--arch/xtensa/Kconfig.debug7
-rw-r--r--arch/xtensa/kernel/traps.c2
2 files changed, 8 insertions, 1 deletions
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)
{