[DTrace-devel] [PATCH] Make sure all probes are listed in default case

[Nick Alcock]

On 28 Jun 2025, eugene loh spake thusly:

> From: Eugene Loh <eugene.loh at oracle.com>
>
> Signed-off-by: Eugene Loh <eugene.loh at oracle.com>

Reviewed-by: Nick Alcock <nick.alcock at oracle.com>

(presumably this is fixing the problem that lazily-instantiated probes
like fbt now is weren't instantiating probes before trying to list
them.)

I winced at this at first:

> +    # Recognize some providers; apply sanity check on number of probes.
> +    $2 == "cpc"      { mycheck($2, $1,     5,    500); next }
> +    $2 == "dtrace"   { mycheck($2, $1,     3,      3); next }
> +    $2 == "fbt"      { mycheck($2, $1, 30000, 300000); next }
> +    $2 == "io"       { mycheck($2, $1,     2,     20); next }
> +    $2 == "ip"       { mycheck($2, $1,     2,     20); next }
> +    $2 == "lockstat" { mycheck($2, $1,     4,     40); next }
> +    # nothing for pid
> +    $2 == "proc"     { mycheck($2, $1,     6,     30); next }
> +    $2 == "profile"  { mycheck($2, $1,     6,     30); next }
> +    $2 == "rawfbt"   { mycheck($2, $1, 30000, 300000); next }
> +    $2 == "rawtp"    { mycheck($2, $1,   600,   6000); next }
> +    $2 == "sched"    { mycheck($2, $1,     3,     30); next }
> +    $2 == "sdt"      { mycheck($2, $1,   600,   6000); next }
> +    $2 == "syscall"  { mycheck($2, $1,   300,   3000); next }
> +    # nothing for usdt

... but honestly if the figures are outside those bounds something is
*definitely* wrong (and it'll be obvious when they really need
updating).

-- 
NULL && (void)