[DTrace-devel] [PATCH v4 7/7] uprobe: do not call populate_args() for pid probes

[Eugene Loh]

Already R-b, but ack that with the latest change the four tests now pass.

On 8/15/25 10:55, Kris Van Hees via DTrace-devel wrote:
> Only USDT (regular and is-enabled) probes need populate_args().
>
> Signed-off-by: Kris Van Hees <kris.van.hees at oracle.com>
> Reviewed-by: Eugene Loh <eugene.loh at oracle.com>
> ---
>   libdtrace/dt_prov_uprobe.c | 7 +++++--
>   1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/libdtrace/dt_prov_uprobe.c b/libdtrace/dt_prov_uprobe.c
> index c63d58383..07b26f20f 100644
> --- a/libdtrace/dt_prov_uprobe.c
> +++ b/libdtrace/dt_prov_uprobe.c
> @@ -986,6 +986,7 @@ static dt_probe_t *create_underlying(dtrace_hdl_t *dtp,
>   		upp->flags |= PP_IS_ENABLED;
>   		break;
>   	case DTPPT_USDT:
> +	case DTPPT_STAPSDT:
>   		upp->flags |= PP_IS_USDT;
>   		break;
>   	default: ;
> @@ -994,8 +995,10 @@ static dt_probe_t *create_underlying(dtrace_hdl_t *dtp,
>   		 */
>   	}
>   
> -	if (populate_args(dtp, psp, upp) < 0)
> -		goto fail;
> +	if (upp->flags & (PP_IS_ENABLED | PP_IS_USDT)) {
> +		if (populate_args(dtp, psp, upp) < 0)
> +			goto fail;
> +	}
>   
>   	return uprp;
>