diff options
| author | Jan Beulich <jbeulich@novell.com> | 2006-06-26 13:57:28 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-26 10:48:17 -0700 |
| commit | 4552d5dc08b79868829b4be8951b29b07284753f (patch) | |
| tree | 7b25695b4c0e1917fc80e8dd4bc494de36320ccc /lib | |
| parent | 2b28592b07223d7fc0691ce3fe57d495dc9cbe3a (diff) | |
| download | lwn-4552d5dc08b79868829b4be8951b29b07284753f.tar.gz lwn-4552d5dc08b79868829b4be8951b29b07284753f.zip | |
[PATCH] x86_64: reliable stack trace support
These are the generic bits needed to enable reliable stack traces based
on Dwarf2-like (.eh_frame) unwind information. Subsequent patches will
enable x86-64 and i386 to make use of this.
Thanks to Andi Kleen and Ingo Molnar, who pointed out several possibilities
for improvement.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index ccb0c1fdf1b5..256b3b805c5c 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -188,14 +188,22 @@ config FRAME_POINTER config UNWIND_INFO bool "Compile the kernel with frame unwind information" - depends on !IA64 - depends on !MODULES || !(MIPS || PARISC || PPC || SUPERH || V850) + depends on !IA64 && !PARISC + depends on !MODULES || !(MIPS || PPC || SUPERH || V850) 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 STACK_UNWIND + bool "Stack unwind support" + depends on UNWIND_INFO + depends on n + help + This enables more precise stack traces, omitting all unrelated + occurrences of pointers into kernel code from the dump. + config FORCED_INLINING bool "Force gcc to inline functions marked 'inline'" depends on DEBUG_KERNEL |