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gcov: move gcov structs definitions to a gcc version specific file

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Since also the gcov structures(gcov_info, gcov_fn_info, gcov_ctr_info) can
change between gcc releases, as shown in gcc 4.7, they cannot be defined
in a common header and need to be moved to a specific gcc implemention
file.  This also requires to make the gcov_info structure opaque for the
common code and to introduce simple helpers for accessing data inside
gcov_info.

Signed-off-by: Frantisek Hrbata <fhrbata@redhat.com>
Cc: Jan Stancek <jstancek@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Acked-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Andy Gospodarek <agospoda@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Frantisek Hrbata
2013-11-12 15:11:24 -08:00
committed by Linus Torvalds
parent 0d20633b04
commit 8cbce376e3
4 changed files with 153 additions and 80 deletions
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27
kernel/gcov/fs.c
View File

@@ -242,7 +242,7 @@ static struct gcov_node *get_node_by_name(const char *name)
list_for_each_entry(node, &all_head, all) {
info = get_node_info(node);
if (info && (strcmp(info->filename, name) == 0))
if (info && (strcmp(gcov_info_filename(info), name) == 0))
return node;
}
@@ -279,7 +279,7 @@ static ssize_t gcov_seq_write(struct file *file, const char __user *addr,
seq = file->private_data;
info = gcov_iter_get_info(seq->private);
mutex_lock(&node_lock);
node = get_node_by_name(info->filename);
node = get_node_by_name(gcov_info_filename(info));
if (node) {
/* Reset counts or remove node for unloaded modules. */
if (node->num_loaded == 0)
@@ -376,8 +376,9 @@ static void add_links(struct gcov_node *node, struct dentry *parent)
if (!node->links)
return;
for (i = 0; i < num; i++) {
target = get_link_target(get_node_info(node)->filename,
&gcov_link[i]);
target = get_link_target(
gcov_info_filename(get_node_info(node)),
&gcov_link[i]);
if (!target)
goto out_err;
basename = strrchr(target, '/');
@@ -576,7 +577,7 @@ static void add_node(struct gcov_info *info)
struct gcov_node *parent;
struct gcov_node *node;
filename = kstrdup(info->filename, GFP_KERNEL);
filename = kstrdup(gcov_info_filename(info), GFP_KERNEL);
if (!filename)
return;
parent = &root_node;
@@ -631,7 +632,7 @@ static void add_info(struct gcov_node *node, struct gcov_info *info)
loaded_info = kcalloc(num + 1, sizeof(struct gcov_info *), GFP_KERNEL);
if (!loaded_info) {
pr_warning("could not add '%s' (out of memory)\n",
info->filename);
gcov_info_filename(info));
return;
}
memcpy(loaded_info, node->loaded_info,
@@ -645,7 +646,8 @@ static void add_info(struct gcov_node *node, struct gcov_info *info)
*/
if (!gcov_info_is_compatible(node->unloaded_info, info)) {
pr_warning("discarding saved data for %s "
"(incompatible version)\n", info->filename);
"(incompatible version)\n",
gcov_info_filename(info));
gcov_info_free(node->unloaded_info);
node->unloaded_info = NULL;
}
@@ -656,7 +658,7 @@ static void add_info(struct gcov_node *node, struct gcov_info *info)
*/
if (!gcov_info_is_compatible(node->loaded_info[0], info)) {
pr_warning("could not add '%s' (incompatible "
"version)\n", info->filename);
"version)\n", gcov_info_filename(info));
kfree(loaded_info);
return;
}
@@ -692,7 +694,8 @@ static void save_info(struct gcov_node *node, struct gcov_info *info)
node->unloaded_info = gcov_info_dup(info);
if (!node->unloaded_info) {
pr_warning("could not save data for '%s' "
"(out of memory)\n", info->filename);
"(out of memory)\n",
gcov_info_filename(info));
}
}
}
@@ -708,7 +711,7 @@ static void remove_info(struct gcov_node *node, struct gcov_info *info)
i = get_info_index(node, info);
if (i < 0) {
pr_warning("could not remove '%s' (not found)\n",
info->filename);
gcov_info_filename(info));
return;
}
if (gcov_persist)
@@ -735,7 +738,7 @@ void gcov_event(enum gcov_action action, struct gcov_info *info)
struct gcov_node *node;
mutex_lock(&node_lock);
node = get_node_by_name(info->filename);
node = get_node_by_name(gcov_info_filename(info));
switch (action) {
case GCOV_ADD:
if (node)
@@ -748,7 +751,7 @@ void gcov_event(enum gcov_action action, struct gcov_info *info)
remove_info(node, info);
else {
pr_warning("could not remove '%s' (not found)\n",
info->filename);
gcov_info_filename(info));
}
break;
}