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/*
Copyright (C) 2009 Red Hat Inc.
Copyright (C) 2009 Arnaldo Carvalho de Melo <acme@redhat.com>
This program is free software; you can redistribute it and/or modify it
under the terms of version 2 of the GNU General Public License as
published by the Free Software Foundation.
*/
#include <malloc.h>
#include <stdio.h>
#include <string.h>
#include "dutil.h"
#include "elf_symtab.h"
#define HASHSYMS__BITS 8
#define HASHSYMS__SIZE (1UL << HASHSYMS__BITS)
struct elf_symtab *elf_symtab__new(const char *name, Elf *elf, GElf_Ehdr *ehdr)
{
if (name == NULL)
name = ".symtab";
GElf_Shdr shdr;
Elf_Scn *sec = elf_section_by_name(elf, ehdr, &shdr, name, NULL);
if (sec == NULL)
return NULL;
if (gelf_getshdr(sec, &shdr) == NULL)
return NULL;
struct elf_symtab *symtab = malloc(sizeof(*symtab));
if (symtab == NULL)
return NULL;
symtab->name = strdup(name);
if (symtab->name == NULL)
goto out_delete;
symtab->syms = elf_getdata(sec, NULL);
if (symtab->syms == NULL)
goto out_free_name;
sec = elf_getscn(elf, shdr.sh_link);
if (sec == NULL)
goto out_free_name;
symtab->symstrs = elf_getdata(sec, NULL);
if (symtab->symstrs == NULL)
goto out_free_name;
symtab->nr_syms = shdr.sh_size / shdr.sh_entsize;
return symtab;
out_free_name:
free(symtab->name);
out_delete:
free(symtab);
return NULL;
}
void elf_symtab__delete(struct elf_symtab *symtab)
{
if (symtab == NULL)
return;
free(symtab->name);
free(symtab);
}
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