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-rw-r--r--tools/perf/util/module.c545
1 files changed, 0 insertions, 545 deletions
diff --git a/tools/perf/util/module.c b/tools/perf/util/module.c
deleted file mode 100644
index 0d8c85d..0000000
--- a/tools/perf/util/module.c
+++ /dev/null
@@ -1,545 +0,0 @@
-#include "util.h"
-#include "../perf.h"
-#include "string.h"
-#include "module.h"
-
-#include <libelf.h>
-#include <libgen.h>
-#include <gelf.h>
-#include <elf.h>
-#include <dirent.h>
-#include <sys/utsname.h>
-
-static unsigned int crc32(const char *p, unsigned int len)
-{
- int i;
- unsigned int crc = 0;
-
- while (len--) {
- crc ^= *p++;
- for (i = 0; i < 8; i++)
- crc = (crc >> 1) ^ ((crc & 1) ? 0xedb88320 : 0);
- }
- return crc;
-}
-
-/* module section methods */
-
-struct sec_dso *sec_dso__new_dso(const char *name)
-{
- struct sec_dso *self = malloc(sizeof(*self) + strlen(name) + 1);
-
- if (self != NULL) {
- strcpy(self->name, name);
- self->secs = RB_ROOT;
- self->find_section = sec_dso__find_section;
- }
-
- return self;
-}
-
-static void sec_dso__delete_section(struct section *self)
-{
- free(((void *)self));
-}
-
-void sec_dso__delete_sections(struct sec_dso *self)
-{
- struct section *pos;
- struct rb_node *next = rb_first(&self->secs);
-
- while (next) {
- pos = rb_entry(next, struct section, rb_node);
- next = rb_next(&pos->rb_node);
- rb_erase(&pos->rb_node, &self->secs);
- sec_dso__delete_section(pos);
- }
-}
-
-void sec_dso__delete_self(struct sec_dso *self)
-{
- sec_dso__delete_sections(self);
- free(self);
-}
-
-static void sec_dso__insert_section(struct sec_dso *self, struct section *sec)
-{
- struct rb_node **p = &self->secs.rb_node;
- struct rb_node *parent = NULL;
- const u64 hash = sec->hash;
- struct section *s;
-
- while (*p != NULL) {
- parent = *p;
- s = rb_entry(parent, struct section, rb_node);
- if (hash < s->hash)
- p = &(*p)->rb_left;
- else
- p = &(*p)->rb_right;
- }
- rb_link_node(&sec->rb_node, parent, p);
- rb_insert_color(&sec->rb_node, &self->secs);
-}
-
-struct section *sec_dso__find_section(struct sec_dso *self, const char *name)
-{
- struct rb_node *n;
- u64 hash;
- int len;
-
- if (self == NULL)
- return NULL;
-
- len = strlen(name);
- hash = crc32(name, len);
-
- n = self->secs.rb_node;
-
- while (n) {
- struct section *s = rb_entry(n, struct section, rb_node);
-
- if (hash < s->hash)
- n = n->rb_left;
- else if (hash > s->hash)
- n = n->rb_right;
- else {
- if (!strcmp(name, s->name))
- return s;
- else
- n = rb_next(&s->rb_node);
- }
- }
-
- return NULL;
-}
-
-static size_t sec_dso__fprintf_section(struct section *self, FILE *fp)
-{
- return fprintf(fp, "name:%s vma:%llx path:%s\n",
- self->name, self->vma, self->path);
-}
-
-size_t sec_dso__fprintf(struct sec_dso *self, FILE *fp)
-{
- size_t ret = fprintf(fp, "dso: %s\n", self->name);
-
- struct rb_node *nd;
- for (nd = rb_first(&self->secs); nd; nd = rb_next(nd)) {
- struct section *pos = rb_entry(nd, struct section, rb_node);
- ret += sec_dso__fprintf_section(pos, fp);
- }
-
- return ret;
-}
-
-static struct section *section__new(const char *name, const char *path)
-{
- struct section *self = calloc(1, sizeof(*self));
-
- if (!self)
- goto out_failure;
-
- self->name = calloc(1, strlen(name) + 1);
- if (!self->name)
- goto out_failure;
-
- self->path = calloc(1, strlen(path) + 1);
- if (!self->path)
- goto out_failure;
-
- strcpy(self->name, name);
- strcpy(self->path, path);
- self->hash = crc32(self->name, strlen(name));
-
- return self;
-
-out_failure:
- if (self) {
- if (self->name)
- free(self->name);
- if (self->path)
- free(self->path);
- free(self);
- }
-
- return NULL;
-}
-
-/* module methods */
-
-struct mod_dso *mod_dso__new_dso(const char *name)
-{
- struct mod_dso *self = malloc(sizeof(*self) + strlen(name) + 1);
-
- if (self != NULL) {
- strcpy(self->name, name);
- self->mods = RB_ROOT;
- self->find_module = mod_dso__find_module;
- }
-
- return self;
-}
-
-static void mod_dso__delete_module(struct module *self)
-{
- free(((void *)self));
-}
-
-void mod_dso__delete_modules(struct mod_dso *self)
-{
- struct module *pos;
- struct rb_node *next = rb_first(&self->mods);
-
- while (next) {
- pos = rb_entry(next, struct module, rb_node);
- next = rb_next(&pos->rb_node);
- rb_erase(&pos->rb_node, &self->mods);
- mod_dso__delete_module(pos);
- }
-}
-
-void mod_dso__delete_self(struct mod_dso *self)
-{
- mod_dso__delete_modules(self);
- free(self);
-}
-
-static void mod_dso__insert_module(struct mod_dso *self, struct module *mod)
-{
- struct rb_node **p = &self->mods.rb_node;
- struct rb_node *parent = NULL;
- const u64 hash = mod->hash;
- struct module *m;
-
- while (*p != NULL) {
- parent = *p;
- m = rb_entry(parent, struct module, rb_node);
- if (hash < m->hash)
- p = &(*p)->rb_left;
- else
- p = &(*p)->rb_right;
- }
- rb_link_node(&mod->rb_node, parent, p);
- rb_insert_color(&mod->rb_node, &self->mods);
-}
-
-struct module *mod_dso__find_module(struct mod_dso *self, const char *name)
-{
- struct rb_node *n;
- u64 hash;
- int len;
-
- if (self == NULL)
- return NULL;
-
- len = strlen(name);
- hash = crc32(name, len);
-
- n = self->mods.rb_node;
-
- while (n) {
- struct module *m = rb_entry(n, struct module, rb_node);
-
- if (hash < m->hash)
- n = n->rb_left;
- else if (hash > m->hash)
- n = n->rb_right;
- else {
- if (!strcmp(name, m->name))
- return m;
- else
- n = rb_next(&m->rb_node);
- }
- }
-
- return NULL;
-}
-
-static size_t mod_dso__fprintf_module(struct module *self, FILE *fp)
-{
- return fprintf(fp, "name:%s path:%s\n", self->name, self->path);
-}
-
-size_t mod_dso__fprintf(struct mod_dso *self, FILE *fp)
-{
- struct rb_node *nd;
- size_t ret;
-
- ret = fprintf(fp, "dso: %s\n", self->name);
-
- for (nd = rb_first(&self->mods); nd; nd = rb_next(nd)) {
- struct module *pos = rb_entry(nd, struct module, rb_node);
-
- ret += mod_dso__fprintf_module(pos, fp);
- }
-
- return ret;
-}
-
-static struct module *module__new(const char *name, const char *path)
-{
- struct module *self = calloc(1, sizeof(*self));
-
- if (!self)
- goto out_failure;
-
- self->name = calloc(1, strlen(name) + 1);
- if (!self->name)
- goto out_failure;
-
- self->path = calloc(1, strlen(path) + 1);
- if (!self->path)
- goto out_failure;
-
- strcpy(self->name, name);
- strcpy(self->path, path);
- self->hash = crc32(self->name, strlen(name));
-
- return self;
-
-out_failure:
- if (self) {
- if (self->name)
- free(self->name);
- if (self->path)
- free(self->path);
- free(self);
- }
-
- return NULL;
-}
-
-static int mod_dso__load_sections(struct module *mod)
-{
- int count = 0, path_len;
- struct dirent *entry;
- char *line = NULL;
- char *dir_path;
- DIR *dir;
- size_t n;
-
- path_len = strlen("/sys/module/");
- path_len += strlen(mod->name);
- path_len += strlen("/sections/");
-
- dir_path = calloc(1, path_len + 1);
- if (dir_path == NULL)
- goto out_failure;
-
- strcat(dir_path, "/sys/module/");
- strcat(dir_path, mod->name);
- strcat(dir_path, "/sections/");
-
- dir = opendir(dir_path);
- if (dir == NULL)
- goto out_free;
-
- while ((entry = readdir(dir))) {
- struct section *section;
- char *path, *vma;
- int line_len;
- FILE *file;
-
- if (!strcmp(".", entry->d_name) || !strcmp("..", entry->d_name))
- continue;
-
- path = calloc(1, path_len + strlen(entry->d_name) + 1);
- if (path == NULL)
- break;
- strcat(path, dir_path);
- strcat(path, entry->d_name);
-
- file = fopen(path, "r");
- if (file == NULL) {
- free(path);
- break;
- }
-
- line_len = getline(&line, &n, file);
- if (line_len < 0) {
- free(path);
- fclose(file);
- break;
- }
-
- if (!line) {
- free(path);
- fclose(file);
- break;
- }
-
- line[--line_len] = '\0'; /* \n */
-
- vma = strstr(line, "0x");
- if (!vma) {
- free(path);
- fclose(file);
- break;
- }
- vma += 2;
-
- section = section__new(entry->d_name, path);
- if (!section) {
- fprintf(stderr, "load_sections: allocation error\n");
- free(path);
- fclose(file);
- break;
- }
-
- hex2u64(vma, &section->vma);
- sec_dso__insert_section(mod->sections, section);
-
- free(path);
- fclose(file);
- count++;
- }
-
- closedir(dir);
- free(line);
- free(dir_path);
-
- return count;
-
-out_free:
- free(dir_path);
-
-out_failure:
- return count;
-}
-
-static int mod_dso__load_module_paths(struct mod_dso *self)
-{
- struct utsname uts;
- int count = 0, len, err = -1;
- char *line = NULL;
- FILE *file;
- char *dpath, *dir;
- size_t n;
-
- if (uname(&uts) < 0)
- return err;
-
- len = strlen("/lib/modules/");
- len += strlen(uts.release);
- len += strlen("/modules.dep");
-
- dpath = calloc(1, len + 1);
- if (dpath == NULL)
- return err;
-
- strcat(dpath, "/lib/modules/");
- strcat(dpath, uts.release);
- strcat(dpath, "/modules.dep");
-
- file = fopen(dpath, "r");
- if (file == NULL)
- goto out_failure;
-
- dir = dirname(dpath);
- if (!dir)
- goto out_failure;
- strcat(dir, "/");
-
- while (!feof(file)) {
- struct module *module;
- char *name, *path, *tmp;
- FILE *modfile;
- int line_len;
-
- line_len = getline(&line, &n, file);
- if (line_len < 0)
- break;
-
- if (!line)
- break;
-
- line[--line_len] = '\0'; /* \n */
-
- path = strchr(line, ':');
- if (!path)
- break;
- *path = '\0';
-
- path = strdup(line);
- if (!path)
- break;
-
- if (!strstr(path, dir)) {
- if (strncmp(path, "kernel/", 7))
- break;
-
- free(path);
- path = calloc(1, strlen(dir) + strlen(line) + 1);
- if (!path)
- break;
- strcat(path, dir);
- strcat(path, line);
- }
-
- modfile = fopen(path, "r");
- if (modfile == NULL)
- break;
- fclose(modfile);
-
- name = strdup(path);
- if (!name)
- break;
-
- name = strtok(name, "/");
- tmp = name;
-
- while (tmp) {
- tmp = strtok(NULL, "/");
- if (tmp)
- name = tmp;
- }
-
- name = strsep(&name, ".");
- if (!name)
- break;
-
- /* Quirk: replace '-' with '_' in all modules */
- for (len = strlen(name); len; len--) {
- if (*(name+len) == '-')
- *(name+len) = '_';
- }
-
- module = module__new(name, path);
- if (!module)
- break;
- mod_dso__insert_module(self, module);
-
- module->sections = sec_dso__new_dso("sections");
- if (!module->sections)
- break;
-
- module->active = mod_dso__load_sections(module);
-
- if (module->active > 0)
- count++;
- }
-
- if (feof(file))
- err = count;
- else
- fprintf(stderr, "load_module_paths: modules.dep parsing failure!\n");
-
-out_failure:
- if (dpath)
- free(dpath);
- if (file)
- fclose(file);
- if (line)
- free(line);
-
- return err;
-}
-
-int mod_dso__load_modules(struct mod_dso *dso)
-{
- int err;
-
- err = mod_dso__load_module_paths(dso);
-
- return err;
-}
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