On Wed, 8 Jan 2025 11:19:11 +
Alan Maguire wrote:
> >>> + trace_seq_printf(s, "(");
> >>> +
> >>> + if (!args)
> >>> + goto out;
> >>> + if (lookup_symbol_name(func, name))
> >>> + goto out;
> >>> +
> >>> + btf = bpf_get_btf_vmlinux();
> >>>
On 08/01/2025 15:24, Steven Rostedt wrote:
> On Wed, 8 Jan 2025 11:19:11 +
> Alan Maguire wrote:
>
> + trace_seq_printf(s, "(");
> +
> + if (!args)
> + goto out;
> + if (lookup_symbol_name(func, name))
> + goto out;
> +
On 08/01/2025 04:52, Masami Hiramatsu (Google) wrote:
> On Wed, 8 Jan 2025 10:30:08 +0800
> Donglin Peng wrote:
>
>> Steven Rostedt 于2024年12月24日 周二04:14写道：
>>
>>> From: Sven Schnelle
>>>
>>> Add a function to decode argument types with the help of BTF. Will
>>> be used to display arguments in th
On Wed, 8 Jan 2025 10:30:08 +0800
Donglin Peng wrote:
> Steven Rostedt 于2024年12月24日 周二04:14写道：
>
> > From: Sven Schnelle
> >
> > Add a function to decode argument types with the help of BTF. Will
> > be used to display arguments in the function and function graph
> > tracer.
> >
> > It can only
On Wed, 25 Dec 2024 22:15:55 +0900
Masami Hiramatsu (Google) wrote:
> >
> > +config FUNCTION_TRACE_ARGS
> > + bool
> > + depends on HAVE_FUNCTION_ARG_ACCESS_API
> > + depends on DEBUG_INFO_BTF
>
> For using the BTF APIs, we also needs BPF_SYSCALL (DEBUG_INFO_BTF just
> compiles the
On Mon, 23 Dec 2024 15:13:48 -0500
Steven Rostedt wrote:
> From: Sven Schnelle
>
> Add a function to decode argument types with the help of BTF. Will
> be used to display arguments in the function and function graph
> tracer.
>
> It can only handle simply arguments and up to FTRACE_REGS_MAX_AR
On Mon, 23 Dec 2024 15:13:48 -0500
Steven Rostedt wrote:
> +#ifdef CONFIG_FUNCTION_TRACE_ARGS
> +void print_function_args(struct trace_seq *s, unsigned long *args,
> + unsigned long func)
> +{
> + const struct btf_param *param;
> + const struct btf_type *t;
> + co
From: Sven Schnelle
Add a function to decode argument types with the help of BTF. Will
be used to display arguments in the function and function graph
tracer.
It can only handle simply arguments and up to FTRACE_REGS_MAX_ARGS number
of arguments. When it hits a max, it will print ", ...":
pa
