linux-stable/kernel/module/debug_kmemleak.c
Aaron Tomlin 473c84d185 module: Move kmemleak support to a separate file
No functional change.

This patch migrates kmemleak code out of core module
code into kernel/module/debug_kmemleak.c

Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
2022-04-05 08:43:04 -07:00

30 lines
785 B
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);
}
}