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| author | Aaron Tomlin <atomlin@redhat.com> | 2022-03-22 14:03:38 +0000 |
|---|---|---|
| committer | Luis Chamberlain <mcgrof@kernel.org> | 2022-04-05 08:43:04 -0700 |
| commit | 473c84d1856e83faebf059a52a8e49bdb89026d3 (patch) | |
| tree | 71f68a36c00062bb387ede5017a9733dfe1c183c /kernel/module/debug_kmemleak.c | |
| parent | 0c1e42805c25c87eb7a6f3b18bdbf3b3b7840aff (diff) | |
| download | linux-473c84d1856e83faebf059a52a8e49bdb89026d3.tar.gz | |
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>
Diffstat (limited to 'kernel/module/debug_kmemleak.c')
| -rw-r--r-- | kernel/module/debug_kmemleak.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/kernel/module/debug_kmemleak.c b/kernel/module/debug_kmemleak.c new file mode 100644 index 000000000000..12a569d361e8 --- /dev/null +++ b/kernel/module/debug_kmemleak.c @@ -0,0 +1,30 @@ +// 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); + } +} |