path: root/tools/perf/util/symbol.c

#include "util.h"
#include "../perf.h"
#include "string.h"
#include "symbol.h"
#include "thread.h"

#include "debug.h"

#include <libelf.h>
#include <gelf.h>
#include <elf.h>
#include <sys/utsname.h>

enum dso_origin {
	DSO__ORIG_KERNEL = 0,
	DSO__ORIG_JAVA_JIT,
	DSO__ORIG_FEDORA,
	DSO__ORIG_UBUNTU,
	DSO__ORIG_BUILDID,
	DSO__ORIG_DSO,
	DSO__ORIG_KMODULE,
	DSO__ORIG_NOT_FOUND,
};

static void dsos__add(struct dso *dso);
static struct dso *dsos__find(const char *name);
static struct map *map__new2(u64 start, struct dso *dso);
static void kernel_maps__insert(struct map *map);
unsigned int symbol__priv_size;

static struct rb_root kernel_maps;

static void dso__fixup_sym_end(struct dso *self)
{
	struct rb_node *nd, *prevnd = rb_first(&self->syms);
	struct symbol *curr, *prev;

	if (prevnd == NULL)
		return;

	curr = rb_entry(prevnd, struct symbol, rb_node);

	for (nd = rb_next(prevnd); nd; nd = rb_next(nd)) {
		prev = curr;
		curr = rb_entry(nd, struct symbol, rb_node);

		if (prev->end == prev->start)
			prev->end = curr->start - 1;
	}

	/* Last entry */
	if (curr->end == curr->start)
		curr->end = roundup(curr->start, 4096);
}

static void kernel_maps__fixup_end(void)
{
	struct map *prev, *curr;
	struct rb_node *nd, *prevnd = rb_first(&kernel_maps);

	if (prevnd == NULL)
		return;

	curr = rb_entry(prevnd, struct map, rb_node);

	for (nd = rb_next(prevnd); nd; nd = rb_next(nd)) {
		prev = curr;
		curr = rb_entry(nd, struct map, rb_node);
		prev->end = curr->start - 1;
	}

	nd = rb_last(&curr->dso->syms);
	if (nd) {
		struct symbol *sym = rb_entry(nd, struct symbol, rb_node);
		curr->end = sym->end;
	}
}

static struct symbol *symbol__new(u64 start, u64 len, const char *name)
{
	size_t namelen = strlen(name) + 1;
	struct symbol *self = calloc(1, (symbol__priv_size +
					 sizeof(*self) + namelen));
	if (!self)
		return NULL;

	if (symbol__priv_size) {
		memset(self, 0, symbol__priv_size);
		self = ((void *)self) + symbol__priv_size;
	}
	self->start =</