On Wed, 19 Nov 2014 19:29:25 +0100 (CET)
Thomas Gleixner wrote:
> On Wed, 19 Nov 2014, Steven Rostedt wrote:
> > From: "Steven Rostedt (Red Hat)"
> > Date: Tue, 18 Nov 2014 21:14:11 -0500
> > Subject: [PATCH] ftrace/x86/extable: Add is_ftrace_trampoline() function
> >
> > Stack traces that happ
On Wed, 19 Nov 2014, Steven Rostedt wrote:
> From: "Steven Rostedt (Red Hat)"
> Date: Tue, 18 Nov 2014 21:14:11 -0500
> Subject: [PATCH] ftrace/x86/extable: Add is_ftrace_trampoline() function
>
> Stack traces that happen from function tracing check if the address
> on the stack is a __kernel_tex
On Wed, 19 Nov 2014 17:16:55 +0900
Namhyung Kim wrote:
>
> [SNIP]
> > @@ -102,6 +103,8 @@ int __kernel_text_address(unsigned long addr)
> > return 1;
> > if (is_module_text_address(addr))
> > return 1;
> > + if (is_ftrace_trampoline(addr))
> > + return 1;
>
> [SNIP]
> > @@ -102,6 +103,8 @@ int __kernel_text_address(unsigned long addr)
> > return 1;
> > if (is_module_text_address(addr))
> > return 1;
> > + if (is_ftrace_trampoline(addr))
> > + return 1;
>
> What about kernel_text_address()? It seems some ar
Hi Steve,
On Tue, 18 Nov 2014 22:33:33 -0500, Steven Rostedt wrote:
> From: "Steven Rostedt (Red Hat)"
>
> Stack traces that happen from function tracing check if the address
> on the stack is a __kernel_text_address(). That is, is the address
> kernel code. This calls core_kernel_text() which re
On Tue, 18 Nov 2014 22:33:33 -0500
Steven Rostedt wrote:
> +/*
> + * This is used by __kernel_text_address() to return true if the
> + * the address is on a dynamically allocated trampoline that would
> + * not return true for either core_kernel_text() or
> + * is_module_text_address().
> + */
>
From: "Steven Rostedt (Red Hat)"
Stack traces that happen from function tracing check if the address
on the stack is a __kernel_text_address(). That is, is the address
kernel code. This calls core_kernel_text() which returns true
if the address is part of the builtin kernel code. It also calls
is
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