[DTrace-devel] [PATCH] usdt; perform __ to - conversion for usdt and prov notes

[Kris Van Hees]

Nevermind - patch withdrawn

On Fri, Oct 10, 2025 at 11:35:30PM -0400, Kris Van Hees wrote:
> The __ to - conversion was only done for usdt notes.  It needs to be
> done for both usdt and prov notes because they both contain probe
> names that may need converting.
> 
> Reported-by: Ruud van der Pas <ruud.vanderpas at oracle.com>
> Signed-off-by: Kris Van Hees <kris.van.hees at oracle.com>
> ---
>  libcommon/usdt_parser_notes.c | 40 +++++++++++++++++++++--------------
>  1 file changed, 24 insertions(+), 16 deletions(-)
> 
> diff --git a/libcommon/usdt_parser_notes.c b/libcommon/usdt_parser_notes.c
> index c98c9fb0..a8b46e65 100644
> --- a/libcommon/usdt_parser_notes.c
> +++ b/libcommon/usdt_parser_notes.c
> @@ -293,6 +293,27 @@ strarray_size(uint8_t cnt, const char *str, const char *end, size_t skip)
>  	return p - str;
>  }
>  
> +/*
> + * If the probe name has encoded hyphens, perform in-place changing from "__"
> + * into "-".
> + */
> +static void
> +fix_probe_name(const char *prb, const char *end)
> +{
> +	if (strstr(prb, "__") != NULL) {
> +		char		*q;
> +		const char	*s = prb;
> +
> +		for (q = (char *)s; s < end; s++, q++) {
> +			if (s[0] == '_' && s[1] == '_') {
> +				*q = '-';
> +				s++;
> +			} else if (s > q)
> +				*q = *s;
> +		}
> +	}
> +}
> +
>  static int
>  parse_prov_note(int out, dof_helper_t *dhp, usdt_data_t *data,
>  		usdt_note_t *note)
> @@ -353,6 +374,8 @@ parse_prov_note(int out, dof_helper_t *dhp, usdt_data_t *data,
>  			return -1;
>  		}
>  
> +		fix_probe_name(prbt.prb, p);
> +
>  		if ((prp = dt_htab_lookup(pvp->pmap, &prbt)) == NULL) {
>  			if ((prp = malloc(sizeof(dt_probe_t))) == NULL) {
>  				usdt_error(out, ENOMEM, "Failed to allocate probe");
> @@ -471,22 +494,7 @@ parse_usdt_note(int out, dof_helper_t *dhp, usdt_data_t *data,
>  	}
>  	prbt.off = off;
>  
> -	/*
> -	 * If the probe name has encoded hyphens, perform in-place changing
> -	 * from "__" into "-".
> -	 */
> -	if (strstr(prbt.prb, "__") != NULL) {
> -		char		*q;
> -		const char	*s = prbt.prb, *e = p;
> -
> -		for (q = (char *)s; s < e; s++, q++) {
> -			if (s[0] == '_' && s[1] == '_') {
> -				*q = '-';
> -				s++;
> -			} else if (s > q)
> -				*q = *s;
> -		}
> -	}
> +	fix_probe_name(prbt.prb, p);
>  
>  	if ((prp = dt_htab_lookup(prbmap, &prbt)) == NULL) {
>  		if ((prp = malloc(sizeof(dt_probe_t))) == NULL) {
> -- 
> 2.43.5
>