Re: [PATCH v2 0/4] printf: Add struct range print specifier

[Petr Mladek <pmladek@suse.com>]

On Wed 2024-10-30 11:51:54, metux wrote:
> On 26.10.24 02:46, Ira Weiny wrote:
> > Support for the Compute Express Link (CXL) Dynamic Capacity Devices
> > (DCD) have grown a number of uses to print struct range.[1]  Support for
> > a printf specifier '%pra' was being worked within a large series and has
> > garnered a number of comments and discussion.
> 
> This is just printing out hex dump of a memory range, correct ?
> 
> What I'm looking for quite some time is a sane way for dumping structs
> in a human readable form (field: value pairs, using their actual types
> eg. int vs string, ...).

You like to print it similar way like "gdb" or other debugging tools do.
Do I get it correctly, please?

> Any idea to do that in a generic way ?
> (potentially using debug info ?)

I am afraid that a generic solution would really need to work with
a debuginfo.

That said, there exists some generic approaches for printing various
values in the trace code, for example, see

    Documentation/trace/kprobetrace.rst
    Documentation/trace/events.rst

Best Regards,
Petr