On 06/02/2020 10.32, [email protected] wrote:
> From: Chen Qun <[email protected]>
>
> According to the glibc function requirements, we need initialise
> the variable. Otherwise there will be compilation warnings:
>
> glib-autocleanups.h:28:3: warning: ‘out’ may be
> used uninitialized in this function [-Wmaybe-uninitialized]
> g_free (*pp);
> ^~~~~~~~~~~~
>
> Reported-by: Euler Robot <[email protected]>
> Signed-off-by: Chen Qun <[email protected]>
> ---
> tests/plugin/bb.c | 2 +-
> tests/plugin/insn.c | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/tests/plugin/bb.c b/tests/plugin/bb.c
> index f30bea08dc..8b9da23a04 100644
> --- a/tests/plugin/bb.c
> +++ b/tests/plugin/bb.c
> @@ -22,7 +22,7 @@ static bool do_inline;
>
> static void plugin_exit(qemu_plugin_id_t id, void *p)
> {
> - g_autofree gchar *out;
> + g_autofree gchar *out = NULL;
> out = g_strdup_printf("bb's: %" PRIu64", insns: %" PRIu64 "\n",
> bb_count, insn_count);
> qemu_plugin_outs(out);
> diff --git a/tests/plugin/insn.c b/tests/plugin/insn.c
> index 0a8f5a0000..c83b1c0157 100644
> --- a/tests/plugin/insn.c
> +++ b/tests/plugin/insn.c
> @@ -44,7 +44,7 @@ static void vcpu_tb_trans(qemu_plugin_id_t id, struct
> qemu_plugin_tb *tb)
>
> static void plugin_exit(qemu_plugin_id_t id, void *p)
> {
> - g_autofree gchar *out;
> + g_autofree gchar *out = NULL;
> out = g_strdup_printf("insns: %" PRIu64 "\n", insn_count);
> qemu_plugin_outs(out);
> }
Just a matter of taste, but I think in these simple cases, it would be
nicer to put everything in one line, e.g.:
g_autofree gchar *out = g_strdup_printf("insns: %" PRIu64 "\n",
insn_count);
Anyway,
Reviewed-by: Thomas Huth <[email protected]>
