llext: (cosmetic) add extension name and allocated size to debug message

Adding this information allows easy cross-reference of the effects of
memory optimization changes between subsequent commits.

To support it, the name needs to be filled in the 'llext' structure
before the 'do_llext_load' function is called.

Signed-off-by: Luca Burelli <[email protected]>

Author: pillo79

subsys/llext/llext.c

@@ -160,17 +160,17 @@ int llext_load(struct llext_loader *ldr, const char *name, struct llext **ext,
 		goto out;
 	}
 
+	strncpy((*ext)->name, name, sizeof((*ext)->name));
+	(*ext)->name[sizeof((*ext)->name) - 1] = '\0';
+
 	ret = do_llext_load(ldr, *ext, ldr_parm);
 	if (ret < 0) {
 		llext_free(*ext);
 		*ext = NULL;
 		goto out;
 	}
 
-	strncpy((*ext)->name, name, sizeof((*ext)->name));
-	(*ext)->name[sizeof((*ext)->name) - 1] = '\0';
 	(*ext)->use_count++;
-
 	sys_slist_append(&_llext_list, &(*ext)->_llext_list);
 	LOG_INF("Loaded extension %s", (*ext)->name);
 

subsys/llext/llext_load.c

@@ -762,7 +762,8 @@ int do_llext_load(struct llext_loader *ldr, struct llext *ext,
 		ext->exp_tab.sym_cnt = 0;
 		ext->exp_tab.syms = NULL;
 	} else {
-		LOG_DBG("loaded module, .text at %p, .rodata at %p", ext->mem[LLEXT_MEM_TEXT],
+		LOG_DBG("Loaded extension %s: %zu bytes in heap, .text at %p, .rodata at %p",
+			ext->name, ext->alloc_size, ext->mem[LLEXT_MEM_TEXT],
 			ext->mem[LLEXT_MEM_RODATA]);
 	}