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programming:kernel:modules [2025/10/19 21:26] – created niziakprogramming:kernel:modules [2025/10/19 21:46] (current) – niziak
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 module foo: .gnu.linkonce.this_module section size must match the kernel's built struct module size at run time module foo: .gnu.linkonce.this_module section size must match the kernel's built struct module size at run time
 </code> </code>
 +
 +<file c kernel/module/main.c>
 +static int elf_validity_cache_copy(struct load_info *info, int flags)
 +{
 +...
 + if (shdr->sh_size != sizeof(struct module)) {
 + pr_err("module %s: .gnu.linkonce.this_module section size must match the kernel's built struct module size at run time\n",
 +        info->name ?: "(missing .modinfo section or name field)");
 + goto no_exec;
 + }
 +}
 +</file>
 +
 +[[https://elixir.bootlin.com/linux/v6.17.2/source/include/linux/module.h#L394|include/linux/module.h]]
 +<file c include/linux/module.h>
 +struct module {
 + enum module_state state;
 +
 + /* Member of list of modules */
 + struct list_head list;
 +
 + /* Unique handle for this module */
 + char name[MODULE_NAME_LEN];
 +
 +#ifdef CONFIG_STACKTRACE_BUILD_ID
 + /* Module build ID */
 + unsigned char build_id[BUILD_ID_SIZE_MAX];
 +#endif
 +
 + /* Sysfs stuff. */
 + struct module_kobject mkobj;
 + struct module_attribute *modinfo_attrs;
 + const char *version;
 + const char *srcversion;
 + struct kobject *holders_dir;
 +
 + /* Exported symbols */
 + const struct kernel_symbol *syms;
 + const s32 *crcs;
 + unsigned int num_syms;
 +
 +#ifdef CONFIG_ARCH_USES_CFI_TRAPS
 + s32 *kcfi_traps;
 + s32 *kcfi_traps_end;
 +#endif
 +
 + /* Kernel parameters. */
 +#ifdef CONFIG_SYSFS
 + struct mutex param_lock;
 +#endif
 + struct kernel_param *kp;
 + unsigned int num_kp;
 +
 + /* GPL-only exported symbols. */
 + unsigned int num_gpl_syms;
 + const struct kernel_symbol *gpl_syms;
 + const s32 *gpl_crcs;
 + bool using_gplonly_symbols;
 +
 +#ifdef CONFIG_MODULE_SIG
 + /* Signature was verified. */
 + bool sig_ok;
 +#endif
 +
 + bool async_probe_requested;
 +
 + /* Exception table */
 + unsigned int num_exentries;
 + struct exception_table_entry *extable;
 +
 + /* Startup function. */
 + int (*init)(void);
 +
 + struct module_memory mem[MOD_MEM_NUM_TYPES] __module_memory_align;
 +
 + /* Arch-specific module values */
 + struct mod_arch_specific arch;
 +
 + unsigned long taints; /* same bits as kernel:taint_flags */
 +
 +#ifdef CONFIG_GENERIC_BUG
 + /* Support for BUG */
 + unsigned num_bugs;
 + struct list_head bug_list;
 + struct bug_entry *bug_table;
 +#endif
 +
 +#ifdef CONFIG_KALLSYMS
 + /* Protected by RCU and/or module_mutex: use rcu_dereference() */
 + struct mod_kallsyms __rcu *kallsyms;
 + struct mod_kallsyms core_kallsyms;
 +
 + /* Section attributes */
 + struct module_sect_attrs *sect_attrs;
 +
 + /* Notes attributes */
 + struct module_notes_attrs *notes_attrs;
 +#endif
 +
 + /* The command line arguments (may be mangled).  People like
 +    keeping pointers to this stuff */
 + char *args;
 +
 +#ifdef CONFIG_SMP
 + /* Per-cpu data. */
 + void __percpu *percpu;
 + unsigned int percpu_size;
 +#endif
 + void *noinstr_text_start;
 + unsigned int noinstr_text_size;
 +
 +#ifdef CONFIG_TRACEPOINTS
 + unsigned int num_tracepoints;
 + tracepoint_ptr_t *tracepoints_ptrs;
 +#endif
 +#ifdef CONFIG_TREE_SRCU
 + unsigned int num_srcu_structs;
 + struct srcu_struct **srcu_struct_ptrs;
 +#endif
 +#ifdef CONFIG_BPF_EVENTS
 + unsigned int num_bpf_raw_events;
 + struct bpf_raw_event_map *bpf_raw_events;
 +#endif
 +#ifdef CONFIG_DEBUG_INFO_BTF_MODULES
 + unsigned int btf_data_size;
 + void *btf_data;
 +#endif
 +#ifdef CONFIG_JUMP_LABEL
 + struct jump_entry *jump_entries;
 + unsigned int num_jump_entries;
 +#endif
 +#ifdef CONFIG_TRACING
 + unsigned int num_trace_bprintk_fmt;
 + const char **trace_bprintk_fmt_start;
 +#endif
 +#ifdef CONFIG_EVENT_TRACING
 + struct trace_event_call **trace_events;
 + unsigned int num_trace_events;
 + struct trace_eval_map **trace_evals;
 + unsigned int num_trace_evals;
 +#endif
 +#ifdef CONFIG_FTRACE_MCOUNT_RECORD
 + unsigned int num_ftrace_callsites;
 + unsigned long *ftrace_callsites;
 +#endif
 +#ifdef CONFIG_KPROBES
 + void *kprobes_text_start;
 + unsigned int kprobes_text_size;
 + unsigned long *kprobe_blacklist;
 + unsigned int num_kprobe_blacklist;
 +#endif
 +#ifdef CONFIG_HAVE_STATIC_CALL_INLINE
 + int num_static_call_sites;
 + struct static_call_site *static_call_sites;
 +#endif
 +#if IS_ENABLED(CONFIG_KUNIT)
 + int num_kunit_suites;
 + struct kunit_suite **kunit_suites;
 +#endif
 +
 +
 +#ifdef CONFIG_LIVEPATCH
 + bool klp; /* Is this a livepatch module? */
 + bool klp_alive;
 +
 + /* ELF information */
 + struct klp_modinfo *klp_info;
 +#endif
 +
 +#ifdef CONFIG_PRINTK_INDEX
 + unsigned int printk_index_size;
 + struct pi_entry **printk_index_start;
 +#endif
 +
 +#ifdef CONFIG_MODULE_UNLOAD
 + /* What modules depend on me? */
 + struct list_head source_list;
 + /* What modules do I depend on? */
 + struct list_head target_list;
 +
 + /* Destruction function. */
 + void (*exit)(void);
 +
 + atomic_t refcnt;
 +#endif
 +
 +#ifdef CONFIG_MITIGATION_ITS
 + int its_num_pages;
 + void **its_page_array;
 +#endif
 +
 +#ifdef CONFIG_CONSTRUCTORS
 + /* Constructor functions. */
 + ctor_fn_t *ctors;
 + unsigned int num_ctors;
 +#endif
 +
 +#ifdef CONFIG_FUNCTION_ERROR_INJECTION
 + struct error_injection_entry *ei_funcs;
 + unsigned int num_ei_funcs;
 +#endif
 +#ifdef CONFIG_DYNAMIC_DEBUG_CORE
 + struct _ddebug_info dyndbg_info;
 +#endif
 +} ____cacheline_aligned __randomize_layout;
 +</file>
 +
 +Reason:
 +module was compiled using older version of SDK generated by Yocto. Regeneration SDK and reinstall it on host helps.