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authorMasahiro Yamada <masahiroy@kernel.org>2020-06-01 08:57:29 +0300
committerMasahiro Yamada <masahiroy@kernel.org>2020-06-06 17:39:20 +0300
commita82f794c41ab51f088af325f5d9acba30a6facdb (patch)
tree9448b9e414cb9152333294e4c51817bd35a02b6f
parent858b937d289bbf7551d496100c1fa9efcad5796e (diff)
downloadlinux-a82f794c41ab51f088af325f5d9acba30a6facdb.tar.xz
modpost: strip .o from modname before calling new_module()
new_module() conditionally strips the .o because the modname has .o suffix when it is called from read_symbols(), but no .o when it is called from read_dump(). It is clearer to strip .o in read_symbols(). I also used flexible-array for mod->name. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
-rw-r--r--scripts/mod/modpost.c20
-rw-r--r--scripts/mod/modpost.h2
2 files changed, 12 insertions, 10 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index b317328ae21b..ebfa9b76ba92 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -175,18 +175,12 @@ static struct module *find_module(const char *modname)
static struct module *new_module(const char *modname)
{
struct module *mod;
- char *p;
- mod = NOFAIL(malloc(sizeof(*mod)));
+ mod = NOFAIL(malloc(sizeof(*mod) + strlen(modname) + 1));
memset(mod, 0, sizeof(*mod));
- p = NOFAIL(strdup(modname));
-
- /* strip trailing .o */
- if (strends(p, ".o"))
- p[strlen(p) - 2] = '\0';
/* add to list */
- mod->name = p;
+ strcpy(mod->name, modname);
mod->is_vmlinux = is_vmlinux(modname);
mod->gpl_compatible = -1;
mod->next = modules;
@@ -2013,7 +2007,15 @@ static void read_symbols(const char *modname)
if (!parse_elf(&info, modname))
return;
- mod = new_module(modname);
+ {
+ char *tmp;
+
+ /* strip trailing .o */
+ tmp = NOFAIL(strdup(modname));
+ tmp[strlen(tmp) - 2] = '\0';
+ mod = new_module(tmp);
+ free(tmp);
+ }
if (!mod->is_vmlinux) {
license = get_modinfo(&info, "license");
diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
index 3dc9e8fa5d1f..254c75378583 100644
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -116,7 +116,6 @@ struct namespace_list {
struct module {
struct module *next;
- const char *name;
int gpl_compatible;
struct symbol *unres;
int from_dump; /* 1 if module was loaded from *.symvers */
@@ -130,6 +129,7 @@ struct module {
struct namespace_list *missing_namespaces;
// Actual imported namespaces
struct namespace_list *imported_namespaces;
+ char name[];
};
struct elf_info {