#include "util.h"
#include "../perf.h"
+#include "sort.h"
#include "string.h"
#include "symbol.h"
#include "thread.h"
enum dso_origin {
DSO__ORIG_KERNEL = 0,
DSO__ORIG_JAVA_JIT,
+ DSO__ORIG_BUILD_ID_CACHE,
DSO__ORIG_FEDORA,
DSO__ORIG_UBUNTU,
DSO__ORIG_BUILDID,
static void dsos__add(struct list_head *head, struct dso *dso);
static struct map *map__new2(u64 start, struct dso *dso, enum map_type type);
static int dso__load_kernel_sym(struct dso *self, struct map *map,
- struct map_groups *mg, symbol_filter_t filter);
-unsigned int symbol__priv_size;
+ symbol_filter_t filter);
static int vmlinux_path__nr_entries;
static char **vmlinux_path;
-static struct symbol_conf symbol_conf__defaults = {
+struct symbol_conf symbol_conf = {
+ .exclude_other = true,
.use_modules = true,
.try_vmlinux_path = true,
};
-static struct map_groups kmaps_mem;
-struct map_groups *kmaps = &kmaps_mem;
-
bool dso__loaded(const struct dso *self, enum map_type type)
{
return self->loaded & (1 << type);
return self->sorted_by_name & (1 << type);
}
-static void dso__set_loaded(struct dso *self, enum map_type type)
-{
- self->loaded |= (1 << type);
-}
-
static void dso__set_sorted_by_name(struct dso *self, enum map_type type)
{
self->sorted_by_name |= (1 << type);
}
-static bool symbol_type__is_a(char symbol_type, enum map_type map_type)
+bool symbol_type__is_a(char symbol_type, enum map_type map_type)
{
switch (map_type) {
case MAP__FUNCTION:
static struct symbol *symbol__new(u64 start, u64 len, const char *name)
{
size_t namelen = strlen(name) + 1;
- struct symbol *self = zalloc(symbol__priv_size +
+ struct symbol *self = zalloc(symbol_conf.priv_size +
sizeof(*self) + namelen);
if (self == NULL)
return NULL;
- if (symbol__priv_size)
- self = ((void *)self) + symbol__priv_size;
+ if (symbol_conf.priv_size)
+ self = ((void *)self) + symbol_conf.priv_size;
self->start = start;
self->end = len ? start + len - 1 : start;
- pr_debug3("%s: %s %#Lx-%#Lx\n", __func__, name, start, self->end);
+ pr_debug4("%s: %s %#Lx-%#Lx\n", __func__, name, start, self->end);
memcpy(self->name, name, namelen);
static void symbol__delete(struct symbol *self)
{
- free(((void *)self) - symbol__priv_size);
+ free(((void *)self) - symbol_conf.priv_size);
}
static size_t symbol__fprintf(struct symbol *self, FILE *fp)
self->start, self->end, self->name);
}
-static void dso__set_long_name(struct dso *self, char *name)
+void dso__set_long_name(struct dso *self, char *name)
{
if (name == NULL)
return;
struct dso *dso__new(const char *name)
{
- struct dso *self = malloc(sizeof(*self) + strlen(name) + 1);
+ struct dso *self = zalloc(sizeof(*self) + strlen(name) + 1);
if (self != NULL) {
int i;
&self->symbols[type]);
}
-int build_id__sprintf(u8 *self, int len, char *bf)
+int build_id__sprintf(const u8 *self, int len, char *bf)
{
char *bid = bf;
- u8 *raw = self;
+ const u8 *raw = self;
int i;
for (i = 0; i < len; ++i) {
return ret;
}
-/*
- * Loads the function entries in /proc/kallsyms into kernel_map->dso,
- * so that we can in the next step set the symbol ->end address and then
- * call kernel_maps__split_kallsyms.
- */
-static int dso__load_all_kallsyms(struct dso *self, struct map *map)
+int kallsyms__parse(const char *filename, void *arg,
+ int (*process_symbol)(void *arg, const char *name,
+ char type, u64 start))
{
char *line = NULL;
size_t n;
- struct rb_root *root = &self->symbols[map->type];
- FILE *file = fopen("/proc/kallsyms", "r");
+ int err = 0;
+ FILE *file = fopen(filename, "r");
if (file == NULL)
goto out_failure;
while (!feof(file)) {
u64 start;
- struct symbol *sym;
int line_len, len;
char symbol_type;
char *symbol_name;
continue;
symbol_type = toupper(line[len]);
- if (!symbol_type__is_a(symbol_type, map->type))
- continue;
-
symbol_name = line + len + 2;
- /*
- * Will fix up the end later, when we have all symbols sorted.
- */
- sym = symbol__new(start, 0, symbol_name);
- if (sym == NULL)
- goto out_delete_line;
- /*
- * We will pass the symbols to the filter later, in
- * map__split_kallsyms, when we have split the maps per module
- */
- symbols__insert(root, sym);
+ err = process_symbol(arg, symbol_name, symbol_type, start);
+ if (err)
+ break;
}
free(line);
fclose(file);
+ return err;
- return 0;
-
-out_delete_line:
- free(line);
out_failure:
return -1;
}
+struct process_kallsyms_args {
+ struct map *map;
+ struct dso *dso;
+};
+
+static int map__process_kallsym_symbol(void *arg, const char *name,
+ char type, u64 start)
+{
+ struct symbol *sym;
+ struct process_kallsyms_args *a = arg;
+ struct rb_root *root = &a->dso->symbols[a->map->type];
+
+ if (!symbol_type__is_a(type, a->map->type))
+ return 0;
+
+ /*
+ * Will fix up the end later, when we have all symbols sorted.
+ */
+ sym = symbol__new(start, 0, name);
+
+ if (sym == NULL)
+ return -ENOMEM;
+ /*
+ * We will pass the symbols to the filter later, in
+ * map__split_kallsyms, when we have split the maps per module
+ */
+ symbols__insert(root, sym);
+ return 0;
+}
+
+/*
+ * Loads the function entries in /proc/kallsyms into kernel_map->dso,
+ * so that we can in the next step set the symbol ->end address and then
+ * call kernel_maps__split_kallsyms.
+ */
+static int dso__load_all_kallsyms(struct dso *self, const char *filename,
+ struct map *map)
+{
+ struct process_kallsyms_args args = { .map = map, .dso = self, };
+ return kallsyms__parse(filename, &args, map__process_kallsym_symbol);
+}
+
/*
* Split the symbols into maps, making sure there are no overlaps, i.e. the
* kernel range is broken in several maps, named [kernel].N, as we don't have
* the original ELF section names vmlinux have.
*/
static int dso__split_kallsyms(struct dso *self, struct map *map,
- struct map_groups *mg, symbol_filter_t filter)
+ symbol_filter_t filter)
{
+ struct map_groups *kmaps = map__kmap(map)->kmaps;
struct map *curr_map = map;
struct symbol *pos;
int count = 0;
module = strchr(pos->name, '\t');
if (module) {
- if (!mg->use_modules)
+ if (!symbol_conf.use_modules)
goto discard_symbol;
*module++ = '\0';
- if (strcmp(self->name, module)) {
- curr_map = map_groups__find_by_name(mg, map->type, module);
+ if (strcmp(curr_map->dso->short_name, module)) {
+ curr_map = map_groups__find_by_name(kmaps, map->type, module);
if (curr_map == NULL) {
pr_debug("/proc/{kallsyms,modules} "
- "inconsistency!\n");
+ "inconsistency while looking "
+ "for \"%s\" module!\n", module);
return -1;
}
+
+ if (curr_map->dso->loaded)
+ goto discard_symbol;
}
/*
* So that we look just like we get from .ko files,
}
curr_map->map_ip = curr_map->unmap_ip = identity__map_ip;
- map_groups__insert(mg, curr_map);
+ map_groups__insert(kmaps, curr_map);
++kernel_range;
}
return count;
}
-
-static int dso__load_kallsyms(struct dso *self, struct map *map,
- struct map_groups *mg, symbol_filter_t filter)
+int dso__load_kallsyms(struct dso *self, const char *filename,
+ struct map *map, symbol_filter_t filter)
{
- if (dso__load_all_kallsyms(self, map) < 0)
+ if (dso__load_all_kallsyms(self, filename, map) < 0)
return -1;
symbols__fixup_end(&self->symbols[map->type]);
self->origin = DSO__ORIG_KERNEL;
- return dso__split_kallsyms(self, map, mg, filter);
-}
-
-size_t kernel_maps__fprintf(FILE *fp)
-{
- size_t printed = fprintf(fp, "Kernel maps:\n");
- printed += map_groups__fprintf_maps(kmaps, fp);
- return printed + fprintf(fp, "END kernel maps\n");
+ return dso__split_kallsyms(self, map, filter);
}
static int dso__load_perf_map(struct dso *self, struct map *map,
}
}
-static int dso__load_sym(struct dso *self, struct map *map,
- struct map_groups *mg, const char *name, int fd,
- symbol_filter_t filter, int kernel, int kmodule)
+static int dso__load_sym(struct dso *self, struct map *map, const char *name,
+ int fd, symbol_filter_t filter, int kmodule)
{
+ struct kmap *kmap = self->kernel ? map__kmap(map) : NULL;
struct map *curr_map = map;
struct dso *curr_dso = self;
size_t dso_name_len = strlen(self->short_name);
nr_syms = shdr.sh_size / shdr.sh_entsize;
memset(&sym, 0, sizeof(sym));
- if (!kernel) {
+ if (!self->kernel) {
self->adjust_symbols = (ehdr.e_type == ET_EXEC ||
elf_section_by_name(elf, &ehdr, &shdr,
".gnu.prelink_undo",
elf_symtab__for_each_symbol(syms, nr_syms, idx, sym) {
struct symbol *f;
- const char *elf_name;
+ const char *elf_name = elf_sym__name(&sym, symstrs);
char *demangled = NULL;
int is_label = elf_sym__is_label(&sym);
const char *section_name;
+ if (kmap && kmap->ref_reloc_sym && kmap->ref_reloc_sym->name &&
+ strcmp(elf_name, kmap->ref_reloc_sym->name) == 0)
+ kmap->ref_reloc_sym->unrelocated_addr = sym.st_value;
+
if (!is_label && !elf_sym__is_a(&sym, map->type))
continue;
if (is_label && !elf_sec__is_a(&shdr, secstrs, map->type))
continue;
- elf_name = elf_sym__name(&sym, symstrs);
section_name = elf_sec__name(&shdr, secstrs);
- if (kernel || kmodule) {
+ if (self->kernel || kmodule) {
char dso_name[PATH_MAX];
if (strcmp(section_name,
snprintf(dso_name, sizeof(dso_name),
"%s%s", self->short_name, section_name);
- curr_map = map_groups__find_by_name(mg, map->type, dso_name);
+ curr_map = map_groups__find_by_name(kmap->kmaps, map->type, dso_name);
if (curr_map == NULL) {
u64 start = sym.st_value;
if (curr_dso == NULL)
goto out_elf_end;
curr_map = map__new2(start, curr_dso,
- MAP__FUNCTION);
+ map->type);
if (curr_map == NULL) {
dso__delete(curr_dso);
goto out_elf_end;
curr_map->map_ip = identity__map_ip;
curr_map->unmap_ip = identity__map_ip;
curr_dso->origin = DSO__ORIG_KERNEL;
- map_groups__insert(kmaps, curr_map);
+ map_groups__insert(kmap->kmaps, curr_map);
dsos__add(&dsos__kernel, curr_dso);
+ dso__set_loaded(curr_dso, map->type);
} else
curr_dso = curr_map->dso;
}
if (curr_dso->adjust_symbols) {
- pr_debug2("adjusting symbol: st_value: %Lx sh_addr: "
- "%Lx sh_offset: %Lx\n", (u64)sym.st_value,
- (u64)shdr.sh_addr, (u64)shdr.sh_offset);
+ pr_debug4("%s: adjusting symbol: st_value: %#Lx "
+ "sh_addr: %#Lx sh_offset: %#Lx\n", __func__,
+ (u64)sym.st_value, (u64)shdr.sh_addr,
+ (u64)shdr.sh_offset);
sym.st_value -= shdr.sh_addr - shdr.sh_offset;
}
/*
/*
* For misannotated, zeroed, ASM function sizes.
*/
- if (nr > 0)
+ if (nr > 0) {
symbols__fixup_end(&self->symbols[map->type]);
+ if (kmap) {
+ /*
+ * We need to fixup this here too because we create new
+ * maps here, for things like vsyscall sections.
+ */
+ __map_groups__fixup_end(kmap->kmaps, map->type);
+ }
+ }
err = nr;
out_elf_end:
elf_end(elf);
return memcmp(self->build_id, build_id, sizeof(self->build_id)) == 0;
}
-static bool __dsos__read_build_ids(struct list_head *head)
+static bool __dsos__read_build_ids(struct list_head *head, bool with_hits)
{
bool have_build_id = false;
struct dso *pos;
- list_for_each_entry(pos, head, node)
+ list_for_each_entry(pos, head, node) {
+ if (with_hits && !pos->hit)
+ continue;
if (filename__read_build_id(pos->long_name, pos->build_id,
sizeof(pos->build_id)) > 0) {
have_build_id = true;
pos->has_build_id = true;
}
+ }
return have_build_id;
}
-bool dsos__read_build_ids(void)
+bool dsos__read_build_ids(bool with_hits)
{
- bool kbuildids = __dsos__read_build_ids(&dsos__kernel),
- ubuildids = __dsos__read_build_ids(&dsos__user);
+ bool kbuildids = __dsos__read_build_ids(&dsos__kernel, with_hits),
+ ubuildids = __dsos__read_build_ids(&dsos__user, with_hits);
return kbuildids || ubuildids;
}
static const char origin[] = {
[DSO__ORIG_KERNEL] = 'k',
[DSO__ORIG_JAVA_JIT] = 'j',
+ [DSO__ORIG_BUILD_ID_CACHE] = 'B',
[DSO__ORIG_FEDORA] = 'f',
[DSO__ORIG_UBUNTU] = 'u',
[DSO__ORIG_BUILDID] = 'b',
int size = PATH_MAX;
char *name;
u8 build_id[BUILD_ID_SIZE];
+ char build_id_hex[BUILD_ID_SIZE * 2 + 1];
int ret = -1;
int fd;
dso__set_loaded(self, map->type);
if (self->kernel)
- return dso__load_kernel_sym(self, map, kmaps, filter);
+ return dso__load_kernel_sym(self, map, filter);
name = malloc(size);
if (!name)
return ret;
}
- self->origin = DSO__ORIG_FEDORA - 1;
+ self->origin = DSO__ORIG_BUILD_ID_CACHE;
+ if (self->has_build_id) {
+ build_id__sprintf(self->build_id, sizeof(self->build_id),
+ build_id_hex);
+ snprintf(name, size, "%s/%s/.build-id/%.2s/%s",
+ getenv("HOME"), DEBUG_CACHE_DIR,
+ build_id_hex, build_id_hex + 2);
+ goto open_file;
+ }
more:
do {
self->origin++;
case DSO__ORIG_BUILDID:
if (filename__read_build_id(self->long_name, build_id,
sizeof(build_id))) {
- char build_id_hex[BUILD_ID_SIZE * 2 + 1];
-
build_id__sprintf(build_id, sizeof(build_id),
build_id_hex);
snprintf(name, size,
if (!dso__build_id_equal(self, build_id))
goto more;
}
-
+open_file:
fd = open(name, O_RDONLY);
} while (fd < 0);
- ret = dso__load_sym(self, map, NULL, name, fd, filter, 0, 0);
+ ret = dso__load_sym(self, map, name, fd, filter, 0);
close(fd);
/*
for (nd = rb_first(&self->maps[type]); nd; nd = rb_next(nd)) {
struct map *map = rb_entry(nd, struct map, rb_node);
- if (map->dso && strcmp(map->dso->name, name) == 0)
+ if (map->dso && strcmp(map->dso->short_name, name) == 0)
return map;
}
return NULL;
}
-static int dsos__set_modules_path_dir(char *dirname)
+static int dso__kernel_module_get_build_id(struct dso *self)
+{
+ char filename[PATH_MAX];
+ /*
+ * kernel module short names are of the form "[module]" and
+ * we need just "module" here.
+ */
+ const char *name = self->short_name + 1;
+
+ snprintf(filename, sizeof(filename),
+ "/sys/module/%.*s/notes/.note.gnu.build-id",
+ (int)strlen(name - 1), name);
+
+ if (sysfs__read_build_id(filename, self->build_id,
+ sizeof(self->build_id)) == 0)
+ self->has_build_id = true;
+
+ return 0;
+}
+
+static int map_groups__set_modules_path_dir(struct map_groups *self, char *dirname)
{
struct dirent *dent;
DIR *dir = opendir(dirname);
snprintf(path, sizeof(path), "%s/%s",
dirname, dent->d_name);
- if (dsos__set_modules_path_dir(path) < 0)
+ if (map_groups__set_modules_path_dir(self, path) < 0)
goto failure;
} else {
char *dot = strrchr(dent->d_name, '.'),
(int)(dot - dent->d_name), dent->d_name);
strxfrchar(dso_name, '-', '_');
- map = map_groups__find_by_name(kmaps, MAP__FUNCTION, dso_name);
+ map = map_groups__find_by_name(self, MAP__FUNCTION, dso_name);
if (map == NULL)
continue;
if (long_name == NULL)
goto failure;
dso__set_long_name(map->dso, long_name);
+ dso__kernel_module_get_build_id(map->dso);
}
}
return -1;
}
-static int dsos__set_modules_path(void)
+static int map_groups__set_modules_path(struct map_groups *self)
{
struct utsname uts;
char modules_path[PATH_MAX];
snprintf(modules_path, sizeof(modules_path), "/lib/modules/%s/kernel",
uts.release);
- return dsos__set_modules_path_dir(modules_path);
+ return map_groups__set_modules_path_dir(self, modules_path);
}
/*
*/
static struct map *map__new2(u64 start, struct dso *dso, enum map_type type)
{
- struct map *self = malloc(sizeof(*self));
-
+ struct map *self = zalloc(sizeof(*self) +
+ (dso->kernel ? sizeof(struct kmap) : 0));
if (self != NULL) {
/*
* ->end will be filled after we load all the symbols
return self;
}
-static int map_groups__create_module_maps(struct map_groups *self)
+struct map *map_groups__new_module(struct map_groups *self, u64 start,
+ const char *filename)
+{
+ struct map *map;
+ struct dso *dso = __dsos__findnew(&dsos__kernel, filename);
+
+ if (dso == NULL)
+ return NULL;
+
+ map = map__new2(start, dso, MAP__FUNCTION);
+ if (map == NULL)
+ return NULL;
+
+ dso->origin = DSO__ORIG_KMODULE;
+ map_groups__insert(self, map);
+ return map;
+}
+
+static int map_groups__create_modules(struct map_groups *self)
{
char *line = NULL;
size_t n;
while (!feof(file)) {
char name[PATH_MAX];
u64 start;
- struct dso *dso;
char *sep;
int line_len;
*sep = '\0';
snprintf(name, sizeof(name), "[%s]", line);
- dso = dso__new(name);
-
- if (dso == NULL)
+ map = map_groups__new_module(self, start, name);
+ if (map == NULL)
goto out_delete_line;
-
- map = map__new2(start, dso, MAP__FUNCTION);
- if (map == NULL) {
- dso__delete(dso);
- goto out_delete_line;
- }
-
- snprintf(name, sizeof(name),
- "/sys/module/%s/notes/.note.gnu.build-id", line);
- if (sysfs__read_build_id(name, dso->build_id,
- sizeof(dso->build_id)) == 0)
- dso->has_build_id = true;
-
- dso->origin = DSO__ORIG_KMODULE;
- map_groups__insert(self, map);
- dsos__add(&dsos__kernel, dso);
+ dso__kernel_module_get_build_id(map->dso);
}
free(line);
fclose(file);
- return dsos__set_modules_path();
+ return map_groups__set_modules_path(self);
out_delete_line:
free(line);
}
static int dso__load_vmlinux(struct dso *self, struct map *map,
- struct map_groups *mg,
const char *vmlinux, symbol_filter_t filter)
{
int err = -1, fd;
return -1;
dso__set_loaded(self, map->type);
- err = dso__load_sym(self, map, mg, self->long_name, fd, filter, 1, 0);
+ err = dso__load_sym(self, map, vmlinux, fd, filter, 0);
close(fd);
return err;
}
+int dso__load_vmlinux_path(struct dso *self, struct map *map,
+ symbol_filter_t filter)
+{
+ int i, err = 0;
+
+ pr_debug("Looking at the vmlinux_path (%d entries long)\n",
+ vmlinux_path__nr_entries);
+
+ for (i = 0; i < vmlinux_path__nr_entries; ++i) {
+ err = dso__load_vmlinux(self, map, vmlinux_path[i], filter);
+ if (err > 0) {
+ pr_debug("Using %s for symbols\n", vmlinux_path[i]);
+ dso__set_long_name(self, strdup(vmlinux_path[i]));
+ break;
+ }
+ }
+
+ return err;
+}
+
static int dso__load_kernel_sym(struct dso *self, struct map *map,
- struct map_groups *mg, symbol_filter_t filter)
+ symbol_filter_t filter)
{
int err;
- bool is_kallsyms;
+ const char *kallsyms_filename = NULL;
+ char *kallsyms_allocated_filename = NULL;
+ /*
+ * Step 1: if the user specified a vmlinux filename, use it and only
+ * it, reporting errors to the user if it cannot be used.
+ *
+ * For instance, try to analyse an ARM perf.data file _without_ a
+ * build-id, or if the user specifies the wrong path to the right
+ * vmlinux file, obviously we can't fallback to another vmlinux (a
+ * x86_86 one, on the machine where analysis is being performed, say),
+ * or worse, /proc/kallsyms.
+ *
+ * If the specified file _has_ a build-id and there is a build-id
+ * section in the perf.data file, we will still do the expected
+ * validation in dso__load_vmlinux and will bail out if they don't
+ * match.
+ */
+ if (symbol_conf.vmlinux_name != NULL) {
+ err = dso__load_vmlinux(self, map,
+ symbol_conf.vmlinux_name, filter);
+ goto out_try_fixup;
+ }
if (vmlinux_path != NULL) {
- int i;
- pr_debug("Looking at the vmlinux_path (%d entries long)\n",
- vmlinux_path__nr_entries);
- for (i = 0; i < vmlinux_path__nr_entries; ++i) {
- err = dso__load_vmlinux(self, map, mg,
- vmlinux_path[i], filter);
- if (err > 0) {
- pr_debug("Using %s for symbols\n",
- vmlinux_path[i]);
- dso__set_long_name(self,
- strdup(vmlinux_path[i]));
- goto out_fixup;
+ err = dso__load_vmlinux_path(self, map, filter);
+ if (err > 0)
+ goto out_fixup;
+ }
+
+ /*
+ * Say the kernel DSO was created when processing the build-id header table,
+ * we have a build-id, so check if it is the same as the running kernel,
+ * using it if it is.
+ */
+ if (self->has_build_id) {
+ u8 kallsyms_build_id[BUILD_ID_SIZE];
+ char sbuild_id[BUILD_ID_SIZE * 2 + 1];
+
+ if (sysfs__read_build_id("/sys/kernel/notes", kallsyms_build_id,
+ sizeof(kallsyms_build_id)) == 0) {
+ if (dso__build_id_equal(self, kallsyms_build_id)) {
+ kallsyms_filename = "/proc/kallsyms";
+ goto do_kallsyms;
}
}
- }
+ /*
+ * Now look if we have it on the build-id cache in
+ * $HOME/.debug/[kernel.kallsyms].
+ */
+ build_id__sprintf(self->build_id, sizeof(self->build_id),
+ sbuild_id);
- is_kallsyms = self->long_name[0] == '[';
- if (is_kallsyms)
- goto do_kallsyms;
+ if (asprintf(&kallsyms_allocated_filename,
+ "%s/.debug/[kernel.kallsyms]/%s",
+ getenv("HOME"), sbuild_id) == -1)
+ return -1;
- err = dso__load_vmlinux(self, map, mg, self->long_name, filter);
- if (err <= 0) {
- pr_info("The file %s cannot be used, "
- "trying to use /proc/kallsyms...", self->long_name);
-do_kallsyms:
- err = dso__load_kallsyms(self, map, mg, filter);
- if (err > 0 && !is_kallsyms)
- dso__set_long_name(self, strdup("[kernel.kallsyms]"));
+ kallsyms_filename = kallsyms_allocated_filename;
+
+ if (access(kallsyms_filename, F_OK)) {
+ free(kallsyms_allocated_filename);
+ return -1;
+ }
+ } else {
+ /*
+ * Last resort, if we don't have a build-id and couldn't find
+ * any vmlinux file, try the running kernel kallsyms table.
+ */
+ kallsyms_filename = "/proc/kallsyms";
}
+do_kallsyms:
+ err = dso__load_kallsyms(self, kallsyms_filename, map, filter);
+ free(kallsyms_allocated_filename);
+
+out_try_fixup:
if (err > 0) {
out_fixup:
+ if (kallsyms_filename != NULL)
+ dso__set_long_name(self, strdup("[kernel.kallsyms]"));
map__fixup_start(map);
map__fixup_end(map);
}
LIST_HEAD(dsos__user);
LIST_HEAD(dsos__kernel);
-struct dso *vdso;
static void dsos__add(struct list_head *head, struct dso *dso)
{
struct dso *pos;
list_for_each_entry(pos, head, node)
- if (strcmp(pos->name, name) == 0)
+ if (strcmp(pos->long_name, name) == 0)
return pos;
return NULL;
}
-struct dso *dsos__findnew(const char *name)
+struct dso *__dsos__findnew(struct list_head *head, const char *name)
{
- struct dso *dso = dsos__find(&dsos__user, name);
+ struct dso *dso = dsos__find(head, name);
if (!dso) {
dso = dso__new(name);
if (dso != NULL) {
- dsos__add(&dsos__user, dso);
+ dsos__add(head, dso);
dso__set_basename(dso);
}
}
__dsos__fprintf(&dsos__user, fp);
}
-static size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp)
+static size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp,
+ bool with_hits)
{
struct dso *pos;
size_t ret = 0;
list_for_each_entry(pos, head, node) {
+ if (with_hits && !pos->hit)
+ continue;
ret += dso__fprintf_buildid(pos, fp);
ret += fprintf(fp, " %s\n", pos->long_name);
}
return ret;
}
-size_t dsos__fprintf_buildid(FILE *fp)
+size_t dsos__fprintf_buildid(FILE *fp, bool with_hits)
{
- return (__dsos__fprintf_buildid(&dsos__kernel, fp) +
- __dsos__fprintf_buildid(&dsos__user, fp));
+ return (__dsos__fprintf_buildid(&dsos__kernel, fp, with_hits) +
+ __dsos__fprintf_buildid(&dsos__user, fp, with_hits));
}
-static struct dso *dsos__create_kernel( const char *vmlinux)
+struct dso *dso__new_kernel(const char *name)
{
- struct dso *kernel = dso__new(vmlinux ?: "[kernel.kallsyms]");
+ struct dso *self = dso__new(name ?: "[kernel.kallsyms]");
- if (kernel == NULL)
- return NULL;
+ if (self != NULL) {
+ self->short_name = "[kernel]";
+ self->kernel = 1;
+ }
- kernel->short_name = "[kernel]";
- kernel->kernel = 1;
+ return self;
+}
- vdso = dso__new("[vdso]");
- if (vdso == NULL)
- goto out_delete_kernel_dso;
- dso__set_loaded(vdso, MAP__FUNCTION);
+void dso__read_running_kernel_build_id(struct dso *self)
+{
+ if (sysfs__read_build_id("/sys/kernel/notes", self->build_id,
+ sizeof(self->build_id)) == 0)
+ self->has_build_id = true;
+}
- if (sysfs__read_build_id("/sys/kernel/notes", kernel->build_id,
- sizeof(kernel->build_id)) == 0)
- kernel->has_build_id = true;
+static struct dso *dsos__create_kernel(const char *vmlinux)
+{
+ struct dso *kernel = dso__new_kernel(vmlinux);
- dsos__add(&dsos__kernel, kernel);
- dsos__add(&dsos__user, vdso);
+ if (kernel != NULL) {
+ dso__read_running_kernel_build_id(kernel);
+ dsos__add(&dsos__kernel, kernel);
+ }
return kernel;
-
-out_delete_kernel_dso:
- dso__delete(kernel);
- return NULL;
}
-static int map_groups__create_kernel_maps(struct map_groups *self, const char *vmlinux)
+int __map_groups__create_kernel_maps(struct map_groups *self,
+ struct map *vmlinux_maps[MAP__NR_TYPES],
+ struct dso *kernel)
{
- struct map *functions, *variables;
- struct dso *kernel = dsos__create_kernel(vmlinux);
+ enum map_type type;
- if (kernel == NULL)
- return -1;
+ for (type = 0; type < MAP__NR_TYPES; ++type) {
+ struct kmap *kmap;
- functions = map__new2(0, kernel, MAP__FUNCTION);
- if (functions == NULL)
- return -1;
+ vmlinux_maps[type] = map__new2(0, kernel, type);
+ if (vmlinux_maps[type] == NULL)
+ return -1;
- variables = map__new2(0, kernel, MAP__VARIABLE);
- if (variables == NULL) {
- map__delete(functions);
- return -1;
- }
+ vmlinux_maps[type]->map_ip =
+ vmlinux_maps[type]->unmap_ip = identity__map_ip;
- functions->map_ip = functions->unmap_ip =
- variables->map_ip = variables->unmap_ip = identity__map_ip;
- map_groups__insert(self, functions);
- map_groups__insert(self, variables);
+ kmap = map__kmap(vmlinux_maps[type]);
+ kmap->kmaps = self;
+ map_groups__insert(self, vmlinux_maps[type]);
+ }
return 0;
}
return -1;
}
-int symbol__init(struct symbol_conf *conf)
+static int setup_list(struct strlist **list, const char *list_str,
+ const char *list_name)
{
- const struct symbol_conf *pconf = conf ?: &symbol_conf__defaults;
+ if (list_str == NULL)
+ return 0;
+ *list = strlist__new(true, list_str);
+ if (!*list) {
+ pr_err("problems parsing %s list\n", list_name);
+ return -1;
+ }
+ return 0;
+}
+
+int symbol__init(void)
+{
elf_version(EV_CURRENT);
- symbol__priv_size = pconf->priv_size;
- if (pconf->sort_by_name)
- symbol__priv_size += (sizeof(struct symbol_name_rb_node) -
- sizeof(struct symbol));
- map_groups__init(kmaps);
+ if (symbol_conf.sort_by_name)
+ symbol_conf.priv_size += (sizeof(struct symbol_name_rb_node) -
+ sizeof(struct symbol));
- if (pconf->try_vmlinux_path && vmlinux_path__init() < 0)
+ if (symbol_conf.try_vmlinux_path && vmlinux_path__init() < 0)
return -1;
- if (map_groups__create_kernel_maps(kmaps, pconf->vmlinux_name) < 0) {
- vmlinux_path__exit();
+ if (symbol_conf.field_sep && *symbol_conf.field_sep == '.') {
+ pr_err("'.' is the only non valid --field-separator argument\n");
return -1;
}
- kmaps->use_modules = pconf->use_modules;
- if (pconf->use_modules && map_groups__create_module_maps(kmaps) < 0)
- pr_debug("Failed to load list of modules in use, "
- "continuing...\n");
+ if (setup_list(&symbol_conf.dso_list,
+ symbol_conf.dso_list_str, "dso") < 0)
+ return -1;
+
+ if (setup_list(&symbol_conf.comm_list,
+ symbol_conf.comm_list_str, "comm") < 0)
+ goto out_free_dso_list;
+
+ if (setup_list(&symbol_conf.sym_list,
+ symbol_conf.sym_list_str, "symbol") < 0)
+ goto out_free_comm_list;
+
+ return 0;
+
+out_free_dso_list:
+ strlist__delete(symbol_conf.dso_list);
+out_free_comm_list:
+ strlist__delete(symbol_conf.comm_list);
+ return -1;
+}
+
+int map_groups__create_kernel_maps(struct map_groups *self,
+ struct map *vmlinux_maps[MAP__NR_TYPES])
+{
+ struct dso *kernel = dsos__create_kernel(symbol_conf.vmlinux_name);
+
+ if (kernel == NULL)
+ return -1;
+
+ if (__map_groups__create_kernel_maps(self, vmlinux_maps, kernel) < 0)
+ return -1;
+
+ if (symbol_conf.use_modules && map_groups__create_modules(self) < 0)
+ return -1;
/*
* Now that we have all the maps created, just set the ->end of them:
*/
- map_groups__fixup_end(kmaps);
+ map_groups__fixup_end(self);
return 0;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff