[Crash-utility] [PATCH 0/3] Display local variables & function parameters from stack frames

Dave Attaching the patches that we have developed till now. We have tried to accommodate your suggestions regarding Makefiles in this patches. We have tried to provide unwinding support in ppc64, x86_64 and x86 architecture. The feature is tested on ppc64 with dumps taken through panic and echo c > /proc/sysrq-trigger. We have observed that many times the variable information is optimized out and accessing variable information is not possible (volatile variables are shown correctly), IMHO this behavior is similar to that shown by gdb, please spare your thoughts on this This implementation works reasonably on ppc64, we were able to unwind to stack and get variable information. But we are still facing problem with x86 and x86_64 architecture, Our generic implementation for stack unwinding using dwarf is not succeeding , since frame pointer is optimized out by default. IMHO stack unwinding as talked about in ABI's is not valid for the same reason. But if you enable CONFIG_FRAME_POINTER in kernel, then unwinding using bp will be possible. Please let me know your thoughts in general Here I am attaching 3 patches 1. Display-local-variables-and-function-parameters.patch Provides feature to print local variables and arguments in the current stack frame using dwarf information. 2. Provide-stack-unwinding-feature.patch Provides option to unwind the stack, using dwarf information, works on ppc64 3. unwind_x86_64.patch provides unwinding feature in x86_64 with out using dwarf information but requires CONFIG_FRAME_POINTER to be enabled Note: It is tested on elfutils-0.137 and above Thank you Sharyathi Nagesh