diff options
| -rw-r--r-- | Makefile | 4 | ||||
| -rw-r--r-- | lib/Kconfig.debug | 11 |
2 files changed, 15 insertions, 0 deletions
@@ -517,6 +517,10 @@ else CFLAGS += -fomit-frame-pointer endif +ifdef CONFIG_UNWIND_INFO +CFLAGS += -fasynchronous-unwind-tables +endif + ifdef CONFIG_DEBUG_INFO CFLAGS += -g endif diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index a314e663d517..f2618e1c2b93 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -195,6 +195,17 @@ config FRAME_POINTER some architectures or if you use external debuggers. If you don't debug the kernel, you can say N. +config UNWIND_INFO + bool "Compile the kernel with frame unwind information" + depends on !IA64 + depends on !MODULES || !(MIPS || PARISC || PPC || SUPERH || SPARC64 || V850) + default DEBUG_KERNEL + help + If you say Y here the resulting kernel image will be slightly larger + but not slower, and it will give very useful debugging information. + If you don't debug the kernel, you can say N, but we may not be able + to solve problems without frame unwind information or frame pointers. + config FORCED_INLINING bool "Force gcc to inline functions marked 'inline'" depends on DEBUG_KERNEL |