On emscripten, function pointer casts can cause function call failure.
This commit fixes the function definition to match to the type of the
function call.
- qtest_set_command_cb passed to g_once should match to GThreadFunc
- object_class_cmp and cpreg_key_compare are passed to g_list_sort as
GCopmareFunc but GLib cast them to GCompareDataFunc.
Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com>
---
hw/riscv/riscv_hart.c | 9 ++++++++-
qom/object.c | 5 +++--
target/arm/helper.c | 4 ++--
3 files changed, 13 insertions(+), 5 deletions(-)
diff --git a/hw/riscv/riscv_hart.c b/hw/riscv/riscv_hart.c
index a55d156668..e37317dcbd 100644
--- a/hw/riscv/riscv_hart.c
+++ b/hw/riscv/riscv_hart.c
@@ -102,10 +102,17 @@ static bool csr_qtest_callback(CharBackend *chr, gchar **words)
return false;
}
+static gpointer g_qtest_set_command_cb(
+ bool (*pc_cb)(CharBackend *chr, gchar **words))
+{
+ qtest_set_command_cb(pc_cb);
+ return NULL;
+}
+
static void riscv_cpu_register_csr_qtest_callback(void)
{
static GOnce once;
- g_once(&once, (GThreadFunc)qtest_set_command_cb, csr_qtest_callback);
+ g_once(&once, (GThreadFunc)g_qtest_set_command_cb, csr_qtest_callback);
}
#endif
diff --git a/qom/object.c b/qom/object.c
index 01618d06bd..19698aae4c 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -1191,7 +1191,8 @@ GSList *object_class_get_list(const char *implements_type,
return list;
}
-static gint object_class_cmp(gconstpointer a, gconstpointer b)
+static gint object_class_cmp(gconstpointer a, gconstpointer b,
+ gpointer user_data)
{
return strcasecmp(object_class_get_name((ObjectClass *)a),
object_class_get_name((ObjectClass *)b));
@@ -1201,7 +1202,7 @@ GSList *object_class_get_list_sorted(const char *implements_type,
bool include_abstract)
{
return g_slist_sort(object_class_get_list(implements_type, include_abstract),
- object_class_cmp);
+ (GCompareFunc)object_class_cmp);
}
Object *object_ref(void *objptr)
diff --git a/target/arm/helper.c b/target/arm/helper.c
index bb445e30cd..68f81fadfc 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -220,7 +220,7 @@ static void count_cpreg(gpointer key, gpointer opaque)
}
}
-static gint cpreg_key_compare(gconstpointer a, gconstpointer b)
+static gint cpreg_key_compare(gconstpointer a, gconstpointer b, void *d)
{
uint64_t aidx = cpreg_to_kvm_id((uintptr_t)a);
uint64_t bidx = cpreg_to_kvm_id((uintptr_t)b);
@@ -244,7 +244,7 @@ void init_cpreg_list(ARMCPU *cpu)
int arraylen;
keys = g_hash_table_get_keys(cpu->cp_regs);
- keys = g_list_sort(keys, cpreg_key_compare);
+ keys = g_list_sort(keys, (GCompareFunc)cpreg_key_compare);
cpu->cpreg_array_len = 0;
--
2.25.1On 4/7/25 16:45, Kohei Tokunaga wrote:
> On emscripten, function pointer casts can cause function call failure.
> This commit fixes the function definition to match to the type of the
> function call.
>
> - qtest_set_command_cb passed to g_once should match to GThreadFunc
Sending an alternative patch that doesn't use GOnce, this code runs in
the main thread.
> - object_class_cmp and cpreg_key_compare are passed to g_list_sort as
> GCopmareFunc but GLib cast them to GCompareDataFunc.
Please use g_list_sort_with_data instead, and poison
g_slist_sort/g_list_sort in include/glib-compat.h, with a comment
explaining that it's done this way because of Emscripten.
Paolo
> Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com>
> ---
> hw/riscv/riscv_hart.c | 9 ++++++++-
> qom/object.c | 5 +++--
> target/arm/helper.c | 4 ++--
> 3 files changed, 13 insertions(+), 5 deletions(-)
>
> diff --git a/hw/riscv/riscv_hart.c b/hw/riscv/riscv_hart.c
> index a55d156668..e37317dcbd 100644
> --- a/hw/riscv/riscv_hart.c
> +++ b/hw/riscv/riscv_hart.c
> @@ -102,10 +102,17 @@ static bool csr_qtest_callback(CharBackend *chr, gchar **words)
> return false;
> }
>
> +static gpointer g_qtest_set_command_cb(
> + bool (*pc_cb)(CharBackend *chr, gchar **words))
> +{
> + qtest_set_command_cb(pc_cb);
> + return NULL;
> +}
> +
> static void riscv_cpu_register_csr_qtest_callback(void)
> {
> static GOnce once;
> - g_once(&once, (GThreadFunc)qtest_set_command_cb, csr_qtest_callback);
> + g_once(&once, (GThreadFunc)g_qtest_set_command_cb, csr_qtest_callback);
> }
> #endif
>
> diff --git a/qom/object.c b/qom/object.c
> index 01618d06bd..19698aae4c 100644
> --- a/qom/object.c
> +++ b/qom/object.c
> @@ -1191,7 +1191,8 @@ GSList *object_class_get_list(const char *implements_type,
> return list;
> }
>
> -static gint object_class_cmp(gconstpointer a, gconstpointer b)
> +static gint object_class_cmp(gconstpointer a, gconstpointer b,
> + gpointer user_data)
> {
> return strcasecmp(object_class_get_name((ObjectClass *)a),
> object_class_get_name((ObjectClass *)b));
> @@ -1201,7 +1202,7 @@ GSList *object_class_get_list_sorted(const char *implements_type,
> bool include_abstract)
> {
> return g_slist_sort(object_class_get_list(implements_type, include_abstract),
> - object_class_cmp);
> + (GCompareFunc)object_class_cmp);
> }
>
> Object *object_ref(void *objptr)
> diff --git a/target/arm/helper.c b/target/arm/helper.c
> index bb445e30cd..68f81fadfc 100644
> --- a/target/arm/helper.c
> +++ b/target/arm/helper.c
> @@ -220,7 +220,7 @@ static void count_cpreg(gpointer key, gpointer opaque)
> }
> }
>
> -static gint cpreg_key_compare(gconstpointer a, gconstpointer b)
> +static gint cpreg_key_compare(gconstpointer a, gconstpointer b, void *d)
> {
> uint64_t aidx = cpreg_to_kvm_id((uintptr_t)a);
> uint64_t bidx = cpreg_to_kvm_id((uintptr_t)b);
> @@ -244,7 +244,7 @@ void init_cpreg_list(ARMCPU *cpu)
> int arraylen;
>
> keys = g_hash_table_get_keys(cpu->cp_regs);
> - keys = g_list_sort(keys, cpreg_key_compare);
> + keys = g_list_sort(keys, (GCompareFunc)cpreg_key_compare);
>
> cpu->cpreg_array_len = 0;
>
Hi Paolo, > > On emscripten, function pointer casts can cause function call failure. > > This commit fixes the function definition to match to the type of the > > function call. > > > > - qtest_set_command_cb passed to g_once should match to GThreadFunc > > Sending an alternative patch that doesn't use GOnce, this code runs in > the main thread. Thank you for addressing this issue. I've sent a review to that patch. > > - object_class_cmp and cpreg_key_compare are passed to g_list_sort as > > GCopmareFunc but GLib cast them to GCompareDataFunc. > > Please use g_list_sort_with_data instead, and poison > g_slist_sort/g_list_sort in include/glib-compat.h, with a comment > explaining that it's done this way because of Emscripten. Sure, I’ll fix this in the next version of the series.
Hi Kohei,
On 7/4/25 16:45, Kohei Tokunaga wrote:
> On emscripten, function pointer casts can cause function call failure.
> This commit fixes the function definition to match to the type of the
> function call.
>
> - qtest_set_command_cb passed to g_once should match to GThreadFunc
> - object_class_cmp and cpreg_key_compare are passed to g_list_sort as
> GCopmareFunc but GLib cast them to GCompareDataFunc.
>
> Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com>
> ---
> hw/riscv/riscv_hart.c | 9 ++++++++-
> qom/object.c | 5 +++--
> target/arm/helper.c | 4 ++--
> 3 files changed, 13 insertions(+), 5 deletions(-)
>
> diff --git a/hw/riscv/riscv_hart.c b/hw/riscv/riscv_hart.c
> index a55d156668..e37317dcbd 100644
> --- a/hw/riscv/riscv_hart.c
> +++ b/hw/riscv/riscv_hart.c
> @@ -102,10 +102,17 @@ static bool csr_qtest_callback(CharBackend *chr, gchar **words)
> return false;
> }
>
> +static gpointer g_qtest_set_command_cb(
> + bool (*pc_cb)(CharBackend *chr, gchar **words))
> +{
Why not use a GThreadFunc prototype, casting the argument?
> + qtest_set_command_cb(pc_cb);
> + return NULL;
> +}
> +
> static void riscv_cpu_register_csr_qtest_callback(void)
> {
> static GOnce once;
> - g_once(&once, (GThreadFunc)qtest_set_command_cb, csr_qtest_callback);
> + g_once(&once, (GThreadFunc)g_qtest_set_command_cb, csr_qtest_callback);
> }
> #endif
>
OK for the rest, but it might help to merge by corresponding maintainers
if split in 3 distinct patches.
> diff --git a/qom/object.c b/qom/object.c
> index 01618d06bd..19698aae4c 100644
> --- a/qom/object.c
> +++ b/qom/object.c
> @@ -1191,7 +1191,8 @@ GSList *object_class_get_list(const char *implements_type,
> return list;
> }
>
> -static gint object_class_cmp(gconstpointer a, gconstpointer b)
> +static gint object_class_cmp(gconstpointer a, gconstpointer b,
> + gpointer user_data)
> {
> return strcasecmp(object_class_get_name((ObjectClass *)a),
> object_class_get_name((ObjectClass *)b));
> @@ -1201,7 +1202,7 @@ GSList *object_class_get_list_sorted(const char *implements_type,
> bool include_abstract)
> {
> return g_slist_sort(object_class_get_list(implements_type, include_abstract),
> - object_class_cmp);
> + (GCompareFunc)object_class_cmp);
> }
>
> Object *object_ref(void *objptr)
> diff --git a/target/arm/helper.c b/target/arm/helper.c
> index bb445e30cd..68f81fadfc 100644
> --- a/target/arm/helper.c
> +++ b/target/arm/helper.c
> @@ -220,7 +220,7 @@ static void count_cpreg(gpointer key, gpointer opaque)
> }
> }
>
> -static gint cpreg_key_compare(gconstpointer a, gconstpointer b)
> +static gint cpreg_key_compare(gconstpointer a, gconstpointer b, void *d)
> {
> uint64_t aidx = cpreg_to_kvm_id((uintptr_t)a);
> uint64_t bidx = cpreg_to_kvm_id((uintptr_t)b);
> @@ -244,7 +244,7 @@ void init_cpreg_list(ARMCPU *cpu)
> int arraylen;
>
> keys = g_hash_table_get_keys(cpu->cp_regs);
> - keys = g_list_sort(keys, cpreg_key_compare);
> + keys = g_list_sort(keys, (GCompareFunc)cpreg_key_compare);
>
> cpu->cpreg_array_len = 0;
>
Hi Philippe, thank you for the comments.
> > +static gpointer g_qtest_set_command_cb(
> > + bool (*pc_cb)(CharBackend *chr, gchar **words))
> > +{
>
> Why not use a GThreadFunc prototype, casting the argument?
Sure, I'll fix this.
> OK for the rest, but it might help to merge by corresponding maintainers
> if split in 3 distinct patches.
Thank you for the suggestion. I'll split it to distinct patches in the next
version of the series.
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