[linux-2.6-block.git] / kernel / module / debug_kmemleak.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Module kmemleak support
 *
 * Copyright (C) 2009 Catalin Marinas
 */

#include <linux/module.h>
#include <linux/kmemleak.h>
#include "internal.h"

void kmemleak_load_module(const struct module *mod,
			  const struct load_info *info)
{
	unsigned int i;

	/* only scan the sections containing data */
	kmemleak_scan_area(mod, sizeof(struct module), GFP_KERNEL);

	for (i = 1; i < info->hdr->e_shnum; i++) {
		/* Scan all writable sections that's not executable */
		if (!(info->sechdrs[i].sh_flags & SHF_ALLOC) ||
		    !(info->sechdrs[i].sh_flags & SHF_WRITE) ||
		    (info->sechdrs[i].sh_flags & SHF_EXECINSTR))
			continue;

		kmemleak_scan_area((void *)info->sechdrs[i].sh_addr,
				   info->sechdrs[i].sh_size, GFP_KERNEL);
	}
}
Commit	Line	Data
473c84d1 AT	1	// SPDX-License-Identifier: GPL-2.0-or-later
	2	/*
	3	* Module kmemleak support
	4	*
	5	* Copyright (C) 2009 Catalin Marinas
	6	*/
	7
	8	#include <linux/module.h>
	9	#include <linux/kmemleak.h>
	10	#include "internal.h"
	11
	12	void kmemleak_load_module(const struct module *mod,
	13	const struct load_info *info)
	14	{
	15	unsigned int i;
	16
	17	/* only scan the sections containing data */
	18	kmemleak_scan_area(mod, sizeof(struct module), GFP_KERNEL);
	19
	20	for (i = 1; i < info->hdr->e_shnum; i++) {
	21	/* Scan all writable sections that's not executable */
	22	if (!(info->sechdrs[i].sh_flags & SHF_ALLOC) \|\|
	23	!(info->sechdrs[i].sh_flags & SHF_WRITE) \|\|
	24	(info->sechdrs[i].sh_flags & SHF_EXECINSTR))
	25	continue;
	26
	27	kmemleak_scan_area((void *)info->sechdrs[i].sh_addr,
	28	info->sechdrs[i].sh_size, GFP_KERNEL);
	29	}
	30	}