Re: [PATCH v2] perf trace: Format fields with hex specifiers in print_fmt as hexadecimal

On Mon, 03 Aug 2026 08:48:45 -0400, Aaron Tomlin wrote:
> Currently, when a probe event is added using perf probe --add with a
> hexadecimal type cast (e.g., var:x64 and var:x32), the kernel traceprobe
> subsystem sets the field type to "u64" in the event's format file, yet
> generates a print format specifier of "var=0x%Lx" or "0x%x".
> 
> By default, perf trace uses its internal beautifiers which only inspect
> field->type and field->flags. Because traceprobe events declare
> primitive integer field types ("u64") without a C pointer asterisk
> (i.e., "*"), perf trace defaults to printing the field's value as a
> decimal unsigned long ("%ld"), ignoring the hexadecimal intent.
> 
> [...]
Applied to perf-tools-next, thanks!

Best regards,
Namhyung