[DTrace-devel] [PATCH] Fix memory leaks

[Eugene Loh]

Reviewed-by: Eugene Loh <eugene.loh at oracle.com>

(Oops by me.)

I don't have a good feel for these things, but in dtrace_close() might 
it make more sense to move the free(dt_stmts) to right after the 
dt_program_destroy() loop?

With this patch, it also makes sense to remove the "CPC will call 
pfm_terminate()" comment in dtrace_close()

On 11/21/24 01:40, Kris Van Hees wrote:
> The array of statements was never freed.
> The PFM library data was never cleaned up.
>
> Signed-off-by: Kris Van Hees <kris.van.hees at oracle.com>
> ---
>   libdtrace/dt_open.c     | 2 ++
>   libdtrace/dt_prov_cpc.c | 1 +
>   2 files changed, 3 insertions(+)
>
> diff --git a/libdtrace/dt_open.c b/libdtrace/dt_open.c
> index e1972aa8..717a7ad0 100644
> --- a/libdtrace/dt_open.c
> +++ b/libdtrace/dt_open.c
> @@ -1314,6 +1314,8 @@ dtrace_close(dtrace_hdl_t *dtp)
>   		free(dirp);
>   	}
>   
> +	free(dtp->dt_stmts);
> +
>   	free(dtp->dt_cpp_argv);
>   	free(dtp->dt_cpp_path);
>   	free(dtp->dt_ld_path);
> diff --git a/libdtrace/dt_prov_cpc.c b/libdtrace/dt_prov_cpc.c
> index 8f33cf58..57b11b13 100644
> --- a/libdtrace/dt_prov_cpc.c
> +++ b/libdtrace/dt_prov_cpc.c
> @@ -484,6 +484,7 @@ static void destroy(dtrace_hdl_t *dtp, void *arg)
>   		dt_free(dtp, probe_map);
>   	}
>   	dt_free(dtp, arg);
> +	pfm_terminate();
>   }
>   
>   dt_provimpl_t	dt_cpc = {