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py/objcell: Fix printing of cell ID/pointer.

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On the nanbox build, `o->obj` is a 64-bit type but `%p` formats a 32-bit
type, leading to undefined behavior.

Print the cell's ID as a hex integer instead.

This location was found using an experimental gcc plugin for `mp_printf`
error checking.

Signed-off-by: Jeff Epler <jepler@gmail.com>
This commit is contained in:
Jeff Epler
2025-07-05 09:34:29 +01:00
committed by Damien George
parent 4495610f8d
commit ee4f27affa
1 changed files with 1 additions and 1 deletions
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2
py/objcell.c
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@@ -30,7 +30,7 @@
static void cell_print(const mp_print_t *print, mp_obj_t o_in, mp_print_kind_t kind) {
(void)kind;
mp_obj_cell_t *o = MP_OBJ_TO_PTR(o_in);
mp_printf(print, "<cell %p ", o->obj);
mp_printf(print, "<cell " HEX_FMT " ", (mp_uint_t)o->obj);
if (o->obj == MP_OBJ_NULL) {
mp_print_str(print, "(nil)");
} else {