linux/arch/x86/oprofile
Josh Poimboeuf cb76c93982 x86/dumpstack: Add get_stack_info() interface
valid_stack_ptr() is buggy: it assumes that all stacks are of size
THREAD_SIZE, which is not true for exception stacks.  So the
walk_stack() callbacks will need to know the location of the beginning
of the stack as well as the end.

Another issue is that in general the various features of a stack (type,
size, next stack pointer, description string) are scattered around in
various places throughout the stack dump code.

Encapsulate all that information in a single place with a new stack_info
struct and a get_stack_info() interface.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Byungchul Park <byungchul.park@lge.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nilay Vaish <nilayvaish@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/8164dd0db96b7e6a279fa17ae5e6dc375eecb4a9.1473905218.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-09-15 08:13:15 +02:00
..
backtrace.c x86/dumpstack: Add get_stack_info() interface 2016-09-15 08:13:15 +02:00
init.c oprofile, x86: Reimplement nmi timer mode using perf event 2011-11-04 16:27:18 +01:00
Makefile oprofile, x86: Reimplement nmi timer mode using perf event 2011-11-04 16:27:18 +01:00
nmi_int.c x86/cpufeature: Replace cpu_has_apic with boot_cpu_has() usage 2016-04-13 11:37:41 +02:00
op_counter.h oprofile, x86: Allow setting EDGE/INV/CMASK for counter events 2011-03-24 18:45:44 +01:00
op_model_amd.c x86/cpufeature: Carve out X86_FEATURE_* 2016-01-30 11:22:17 +01:00
op_model_p4.c percpu: Resolve ambiguities in __get_cpu_var/cpumask_var_t 2014-08-28 08:58:57 -04:00
op_model_ppro.c x86/cpufeature: Remove cpu_has_arch_perfmon 2016-03-31 13:33:17 +02:00
op_x86_model.h perf, x86: Implement IBS initialization 2011-10-10 06:57:16 +02:00