mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
9dba198b0e
rather than relying on a trick that happens to work for the current relocation schemes. Also add some comments and improve variable naming.
607 lines
15 KiB
C
607 lines
15 KiB
C
/*
|
|
* Copyright (c) 2000, Boris Popov
|
|
* Copyright (c) 1998-2000 Doug Rabson
|
|
* Copyright (c) 2004 Peter Wemm
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Boris Popov.
|
|
* 4. Neither the name of the author nor the names of any co-contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/linker.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <machine/elf.h>
|
|
#define FREEBSD_ELF
|
|
#include <link.h>
|
|
|
|
#include <err.h>
|
|
|
|
#include "ef.h"
|
|
|
|
typedef struct {
|
|
void *addr;
|
|
Elf_Off size;
|
|
int flags;
|
|
int sec; /* Original section */
|
|
char *name;
|
|
} Elf_progent;
|
|
|
|
typedef struct {
|
|
Elf_Rel *rel;
|
|
int nrel;
|
|
int sec;
|
|
} Elf_relent;
|
|
|
|
typedef struct {
|
|
Elf_Rela *rela;
|
|
int nrela;
|
|
int sec;
|
|
} Elf_relaent;
|
|
|
|
struct ef_file {
|
|
char *ef_name;
|
|
int ef_fd;
|
|
Elf_Ehdr ef_hdr;
|
|
struct elf_file *ef_efile;
|
|
|
|
caddr_t address;
|
|
Elf_Off size;
|
|
Elf_Shdr *e_shdr;
|
|
|
|
Elf_progent *progtab;
|
|
int nprogtab;
|
|
|
|
Elf_relaent *relatab;
|
|
int nrela;
|
|
|
|
Elf_relent *reltab;
|
|
int nrel;
|
|
|
|
Elf_Sym *ddbsymtab; /* The symbol table we are using */
|
|
long ddbsymcnt; /* Number of symbols */
|
|
caddr_t ddbstrtab; /* String table */
|
|
long ddbstrcnt; /* number of bytes in string table */
|
|
|
|
caddr_t shstrtab; /* Section name string table */
|
|
long shstrcnt; /* number of bytes in string table */
|
|
|
|
int ef_verbose;
|
|
};
|
|
|
|
static int ef_obj_get_type(elf_file_t ef);
|
|
static int ef_obj_close(elf_file_t ef);
|
|
static int ef_obj_read(elf_file_t ef, Elf_Off offset, size_t len, void* dest);
|
|
static int ef_obj_read_entry(elf_file_t ef, Elf_Off offset, size_t len,
|
|
void **ptr);
|
|
static int ef_obj_seg_read(elf_file_t ef, Elf_Off offset, size_t len,
|
|
void *dest);
|
|
static int ef_obj_seg_read_rel(elf_file_t ef, Elf_Off offset, size_t len,
|
|
void *dest);
|
|
static int ef_obj_seg_read_entry(elf_file_t ef, Elf_Off offset, size_t len,
|
|
void **ptr);
|
|
static int ef_obj_seg_read_entry_rel(elf_file_t ef, Elf_Off offset, size_t len,
|
|
void **ptr);
|
|
static Elf_Addr ef_obj_symaddr(elf_file_t ef, Elf_Word symidx);
|
|
static int ef_obj_lookup_set(elf_file_t ef, const char *name, long *startp,
|
|
long *stopp, long *countp);
|
|
static int ef_obj_lookup_symbol(elf_file_t ef, const char* name, Elf_Sym** sym);
|
|
|
|
static struct elf_file_ops ef_obj_file_ops = {
|
|
ef_obj_get_type,
|
|
ef_obj_close,
|
|
ef_obj_read,
|
|
ef_obj_read_entry,
|
|
ef_obj_seg_read,
|
|
ef_obj_seg_read_rel,
|
|
ef_obj_seg_read_entry,
|
|
ef_obj_seg_read_entry_rel,
|
|
ef_obj_symaddr,
|
|
ef_obj_lookup_set,
|
|
ef_obj_lookup_symbol
|
|
};
|
|
|
|
static int
|
|
ef_obj_get_type(elf_file_t ef)
|
|
{
|
|
|
|
return (EFT_KLD);
|
|
}
|
|
|
|
static int
|
|
ef_obj_lookup_symbol(elf_file_t ef, const char* name, Elf_Sym** sym)
|
|
{
|
|
Elf_Sym *symp;
|
|
const char *strp;
|
|
int i;
|
|
|
|
for (i = 0, symp = ef->ddbsymtab; i < ef->ddbsymcnt; i++, symp++) {
|
|
strp = ef->ddbstrtab + symp->st_name;
|
|
if (symp->st_shndx != SHN_UNDEF && strcmp(name, strp) == 0) {
|
|
*sym = symp;
|
|
return 0;
|
|
}
|
|
}
|
|
return ENOENT;
|
|
}
|
|
|
|
static int
|
|
ef_obj_lookup_set(elf_file_t ef, const char *name, long *startp, long *stopp,
|
|
long *countp)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < ef->nprogtab; i++) {
|
|
if ((strncmp(ef->progtab[i].name, "set_", 4) == 0) &&
|
|
strcmp(ef->progtab[i].name + 4, name) == 0) {
|
|
*startp = (char *)ef->progtab[i].addr - ef->address;
|
|
*stopp = (char *)ef->progtab[i].addr +
|
|
ef->progtab[i].size - ef->address;
|
|
*countp = (*stopp - *startp) / sizeof(void *);
|
|
return (0);
|
|
}
|
|
}
|
|
return (ESRCH);
|
|
}
|
|
|
|
static Elf_Addr
|
|
ef_obj_symaddr(elf_file_t ef, Elf_Word symidx)
|
|
{
|
|
const Elf_Sym *sym;
|
|
|
|
if (symidx >= ef->ddbsymcnt)
|
|
return (0);
|
|
sym = ef->ddbsymtab + symidx;
|
|
|
|
if (sym->st_shndx != SHN_UNDEF)
|
|
return (sym->st_value - (Elf_Addr)ef->address);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ef_obj_read(elf_file_t ef, Elf_Off offset, size_t len, void *dest)
|
|
{
|
|
ssize_t r;
|
|
|
|
if (offset != (Elf_Off)-1) {
|
|
if (lseek(ef->ef_fd, offset, SEEK_SET) == -1)
|
|
return EIO;
|
|
}
|
|
|
|
r = read(ef->ef_fd, dest, len);
|
|
if (r != -1 && (size_t)r == len)
|
|
return 0;
|
|
else
|
|
return EIO;
|
|
}
|
|
|
|
static int
|
|
ef_obj_read_entry(elf_file_t ef, Elf_Off offset, size_t len, void **ptr)
|
|
{
|
|
int error;
|
|
|
|
*ptr = malloc(len);
|
|
if (*ptr == NULL)
|
|
return ENOMEM;
|
|
error = ef_obj_read(ef, offset, len, *ptr);
|
|
if (error)
|
|
free(*ptr);
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
ef_obj_seg_read(elf_file_t ef, Elf_Off offset, size_t len, void *dest)
|
|
{
|
|
|
|
if (offset + len > ef->size) {
|
|
if (ef->ef_verbose)
|
|
warnx("ef_seg_read_rel(%s): bad offset/len (%lx:%ld)",
|
|
ef->ef_name, (long)offset, (long)len);
|
|
return (EFAULT);
|
|
}
|
|
bcopy(ef->address + offset, dest, len);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ef_obj_seg_read_rel(elf_file_t ef, Elf_Off offset, size_t len, void *dest)
|
|
{
|
|
char *memaddr;
|
|
Elf_Rel *r;
|
|
Elf_Rela *a;
|
|
Elf_Off secbase, dataoff;
|
|
int error, i, sec;
|
|
|
|
if (offset + len > ef->size) {
|
|
if (ef->ef_verbose)
|
|
warnx("ef_seg_read_rel(%s): bad offset/len (%lx:%ld)",
|
|
ef->ef_name, (long)offset, (long)len);
|
|
return (EFAULT);
|
|
}
|
|
bcopy(ef->address + offset, dest, len);
|
|
|
|
/* Find out which section contains the data. */
|
|
memaddr = ef->address + offset;
|
|
sec = -1;
|
|
secbase = dataoff = 0;
|
|
for (i = 0; i < ef->nprogtab; i++) {
|
|
if (ef->progtab[i].addr == NULL)
|
|
continue;
|
|
if (memaddr < (char *)ef->progtab[i].addr || memaddr + len >
|
|
(char *)ef->progtab[i].addr + ef->progtab[i].size)
|
|
continue;
|
|
sec = ef->progtab[i].sec;
|
|
/* We relocate to address 0. */
|
|
secbase = (char *)ef->progtab[i].addr - ef->address;
|
|
dataoff = memaddr - ef->address;
|
|
break;
|
|
}
|
|
|
|
if (sec == -1)
|
|
return (EFAULT);
|
|
|
|
/* Now do the relocations. */
|
|
for (i = 0; i < ef->nrel; i++) {
|
|
if (ef->reltab[i].sec != sec)
|
|
continue;
|
|
for (r = ef->reltab[i].rel;
|
|
r < &ef->reltab[i].rel[ef->reltab[i].nrel]; r++) {
|
|
error = ef_reloc(ef->ef_efile, r, EF_RELOC_REL, secbase,
|
|
dataoff, len, dest);
|
|
if (error != 0)
|
|
return (error);
|
|
}
|
|
}
|
|
for (i = 0; i < ef->nrela; i++) {
|
|
if (ef->relatab[i].sec != sec)
|
|
continue;
|
|
for (a = ef->relatab[i].rela;
|
|
a < &ef->relatab[i].rela[ef->relatab[i].nrela]; a++) {
|
|
error = ef_reloc(ef->ef_efile, a, EF_RELOC_RELA,
|
|
secbase, dataoff, len, dest);
|
|
if (error != 0)
|
|
return (error);
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ef_obj_seg_read_entry(elf_file_t ef, Elf_Off offset, size_t len, void **ptr)
|
|
{
|
|
int error;
|
|
|
|
*ptr = malloc(len);
|
|
if (*ptr == NULL)
|
|
return ENOMEM;
|
|
error = ef_obj_seg_read(ef, offset, len, *ptr);
|
|
if (error)
|
|
free(*ptr);
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
ef_obj_seg_read_entry_rel(elf_file_t ef, Elf_Off offset, size_t len,
|
|
void **ptr)
|
|
{
|
|
int error;
|
|
|
|
*ptr = malloc(len);
|
|
if (*ptr == NULL)
|
|
return ENOMEM;
|
|
error = ef_obj_seg_read_rel(ef, offset, len, *ptr);
|
|
if (error)
|
|
free(*ptr);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
ef_obj_open(const char *filename, struct elf_file *efile, int verbose)
|
|
{
|
|
elf_file_t ef;
|
|
Elf_Ehdr *hdr;
|
|
Elf_Shdr *shdr;
|
|
Elf_Sym *es;
|
|
char *mapbase;
|
|
void *vtmp;
|
|
size_t mapsize;
|
|
int alignmask, error, fd, pb, ra, res, rl;
|
|
int i, j, nbytes, nsym, shstrindex, symstrindex, symtabindex;
|
|
|
|
if (filename == NULL)
|
|
return EFTYPE;
|
|
if ((fd = open(filename, O_RDONLY)) == -1)
|
|
return errno;
|
|
|
|
ef = malloc(sizeof(*ef));
|
|
if (ef == NULL) {
|
|
close(fd);
|
|
return (ENOMEM);
|
|
}
|
|
|
|
efile->ef_ef = ef;
|
|
efile->ef_ops = &ef_obj_file_ops;
|
|
|
|
bzero(ef, sizeof(*ef));
|
|
ef->ef_verbose = verbose;
|
|
ef->ef_fd = fd;
|
|
ef->ef_name = strdup(filename);
|
|
ef->ef_efile = efile;
|
|
hdr = (Elf_Ehdr *)&ef->ef_hdr;
|
|
|
|
res = read(fd, hdr, sizeof(*hdr));
|
|
error = EFTYPE;
|
|
if (res != sizeof(*hdr))
|
|
goto out;
|
|
if (!IS_ELF(*hdr))
|
|
goto out;
|
|
if (hdr->e_ident[EI_CLASS] != ELF_TARG_CLASS ||
|
|
hdr->e_ident[EI_DATA] != ELF_TARG_DATA ||
|
|
hdr->e_ident[EI_VERSION] != EV_CURRENT ||
|
|
hdr->e_version != EV_CURRENT || hdr->e_machine != ELF_TARG_MACH ||
|
|
hdr->e_type != ET_REL)
|
|
goto out;
|
|
|
|
nbytes = hdr->e_shnum * hdr->e_shentsize;
|
|
if (nbytes == 0 || hdr->e_shoff == 0 ||
|
|
hdr->e_shentsize != sizeof(Elf_Shdr))
|
|
goto out;
|
|
|
|
if (ef_obj_read_entry(ef, hdr->e_shoff, nbytes, &vtmp) != 0) {
|
|
printf("ef_read_entry failed\n");
|
|
goto out;
|
|
}
|
|
ef->e_shdr = shdr = vtmp;
|
|
|
|
/* Scan the section header for information and table sizing. */
|
|
nsym = 0;
|
|
symtabindex = -1;
|
|
symstrindex = -1;
|
|
for (i = 0; i < hdr->e_shnum; i++) {
|
|
switch (shdr[i].sh_type) {
|
|
case SHT_PROGBITS:
|
|
case SHT_NOBITS:
|
|
ef->nprogtab++;
|
|
break;
|
|
case SHT_SYMTAB:
|
|
nsym++;
|
|
symtabindex = i;
|
|
symstrindex = shdr[i].sh_link;
|
|
break;
|
|
case SHT_REL:
|
|
ef->nrel++;
|
|
break;
|
|
case SHT_RELA:
|
|
ef->nrela++;
|
|
break;
|
|
case SHT_STRTAB:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (ef->nprogtab == 0) {
|
|
warnx("%s: file has no contents", filename);
|
|
goto out;
|
|
}
|
|
if (nsym != 1) {
|
|
warnx("%s: file has no valid symbol table", filename);
|
|
goto out;
|
|
}
|
|
if (symstrindex < 0 || symstrindex > hdr->e_shnum ||
|
|
shdr[symstrindex].sh_type != SHT_STRTAB) {
|
|
warnx("%s: file has invalid symbol strings", filename);
|
|
goto out;
|
|
}
|
|
|
|
/* Allocate space for tracking the load chunks */
|
|
if (ef->nprogtab != 0)
|
|
ef->progtab = calloc(ef->nprogtab, sizeof(*ef->progtab));
|
|
if (ef->nrel != 0)
|
|
ef->reltab = calloc(ef->nrel, sizeof(*ef->reltab));
|
|
if (ef->nrela != 0)
|
|
ef->relatab = calloc(ef->nrela, sizeof(*ef->relatab));
|
|
if ((ef->nprogtab != 0 && ef->progtab == NULL) ||
|
|
(ef->nrel != 0 && ef->reltab == NULL) ||
|
|
(ef->nrela != 0 && ef->relatab == NULL)) {
|
|
printf("malloc failed\n");
|
|
error = ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
ef->ddbsymcnt = shdr[symtabindex].sh_size / sizeof(Elf_Sym);
|
|
if (ef_obj_read_entry(ef, shdr[symtabindex].sh_offset,
|
|
shdr[symtabindex].sh_size, (void**)&ef->ddbsymtab) != 0) {
|
|
printf("ef_read_entry failed\n");
|
|
goto out;
|
|
}
|
|
|
|
ef->ddbstrcnt = shdr[symstrindex].sh_size;
|
|
if (ef_obj_read_entry(ef, shdr[symstrindex].sh_offset,
|
|
shdr[symstrindex].sh_size, (void**)&ef->ddbstrtab) != 0) {
|
|
printf("ef_read_entry failed\n");
|
|
goto out;
|
|
}
|
|
|
|
/* Do we have a string table for the section names? */
|
|
shstrindex = -1;
|
|
if (hdr->e_shstrndx != 0 &&
|
|
shdr[hdr->e_shstrndx].sh_type == SHT_STRTAB) {
|
|
shstrindex = hdr->e_shstrndx;
|
|
ef->shstrcnt = shdr[shstrindex].sh_size;
|
|
if (ef_obj_read_entry(ef, shdr[shstrindex].sh_offset,
|
|
shdr[shstrindex].sh_size, (void**)&ef->shstrtab) != 0) {
|
|
printf("ef_read_entry failed\n");
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
/* Size up code/data(progbits) and bss(nobits). */
|
|
alignmask = 0;
|
|
mapsize = 0;
|
|
for (i = 0; i < hdr->e_shnum; i++) {
|
|
switch (shdr[i].sh_type) {
|
|
case SHT_PROGBITS:
|
|
case SHT_NOBITS:
|
|
alignmask = shdr[i].sh_addralign - 1;
|
|
mapsize += alignmask;
|
|
mapsize &= ~alignmask;
|
|
mapsize += shdr[i].sh_size;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* We know how much space we need for the text/data/bss/etc. */
|
|
ef->address = malloc(mapsize);
|
|
ef->size = mapsize;
|
|
if (ef->address == NULL) {
|
|
printf("malloc failed\n");
|
|
goto out;
|
|
}
|
|
mapbase = ef->address;
|
|
|
|
/*
|
|
* Now load code/data(progbits), zero bss(nobits), allocate
|
|
* space for and load relocs
|
|
*/
|
|
pb = 0;
|
|
rl = 0;
|
|
ra = 0;
|
|
alignmask = 0;
|
|
for (i = 0; i < hdr->e_shnum; i++) {
|
|
switch (shdr[i].sh_type) {
|
|
case SHT_PROGBITS:
|
|
case SHT_NOBITS:
|
|
alignmask = shdr[i].sh_addralign - 1;
|
|
mapbase += alignmask;
|
|
mapbase = (char *)((uintptr_t)mapbase & ~alignmask);
|
|
ef->progtab[pb].addr = (void *)(uintptr_t)mapbase;
|
|
if (shdr[i].sh_type == SHT_PROGBITS) {
|
|
ef->progtab[pb].name = "<<PROGBITS>>";
|
|
if (ef_obj_read(ef, shdr[i].sh_offset,
|
|
shdr[i].sh_size,
|
|
ef->progtab[pb].addr) != 0) {
|
|
printf("failed to read progbits\n");
|
|
goto out;
|
|
}
|
|
} else {
|
|
ef->progtab[pb].name = "<<NOBITS>>";
|
|
bzero(ef->progtab[pb].addr, shdr[i].sh_size);
|
|
}
|
|
ef->progtab[pb].size = shdr[i].sh_size;
|
|
ef->progtab[pb].sec = i;
|
|
if (ef->shstrtab && shdr[i].sh_name != 0)
|
|
ef->progtab[pb].name =
|
|
ef->shstrtab + shdr[i].sh_name;
|
|
|
|
/* Update all symbol values with the offset. */
|
|
for (j = 0; j < ef->ddbsymcnt; j++) {
|
|
es = &ef->ddbsymtab[j];
|
|
if (es->st_shndx != i)
|
|
continue;
|
|
es->st_value += (Elf_Addr)ef->progtab[pb].addr;
|
|
}
|
|
mapbase += shdr[i].sh_size;
|
|
pb++;
|
|
break;
|
|
case SHT_REL:
|
|
ef->reltab[rl].nrel = shdr[i].sh_size / sizeof(Elf_Rel);
|
|
ef->reltab[rl].sec = shdr[i].sh_info;
|
|
if (ef_obj_read_entry(ef, shdr[i].sh_offset,
|
|
shdr[i].sh_size, (void**)&ef->reltab[rl].rel) !=
|
|
0) {
|
|
printf("ef_read_entry failed\n");
|
|
goto out;
|
|
}
|
|
rl++;
|
|
break;
|
|
case SHT_RELA:
|
|
ef->relatab[ra].nrela =
|
|
shdr[i].sh_size / sizeof(Elf_Rela);
|
|
ef->relatab[ra].sec = shdr[i].sh_info;
|
|
if (ef_obj_read_entry(ef, shdr[i].sh_offset,
|
|
shdr[i].sh_size, (void**)&ef->relatab[ra].rela) !=
|
|
0) {
|
|
printf("ef_read_entry failed\n");
|
|
goto out;
|
|
}
|
|
ra++;
|
|
break;
|
|
}
|
|
}
|
|
error = 0;
|
|
out:
|
|
if (error)
|
|
ef_obj_close(ef);
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
ef_obj_close(elf_file_t ef)
|
|
{
|
|
int i;
|
|
|
|
close(ef->ef_fd);
|
|
if (ef->ef_name)
|
|
free(ef->ef_name);
|
|
if (ef->e_shdr != NULL)
|
|
free(ef->e_shdr);
|
|
if (ef->size != 0)
|
|
free(ef->address);
|
|
if (ef->nprogtab != 0)
|
|
free(ef->progtab);
|
|
if (ef->nrel != 0) {
|
|
for (i = 0; i < ef->nrel; i++)
|
|
if (ef->reltab[i].rel != NULL)
|
|
free(ef->reltab[i].rel);
|
|
free(ef->reltab);
|
|
}
|
|
if (ef->nrela != 0) {
|
|
for (i = 0; i < ef->nrela; i++)
|
|
if (ef->relatab[i].rela != NULL)
|
|
free(ef->relatab[i].rela);
|
|
free(ef->relatab);
|
|
}
|
|
if (ef->ddbsymtab != NULL)
|
|
free(ef->ddbsymtab);
|
|
if (ef->ddbstrtab != NULL)
|
|
free(ef->ddbstrtab);
|
|
if (ef->shstrtab != NULL)
|
|
free(ef->shstrtab);
|
|
ef->ef_efile->ef_ops = NULL;
|
|
ef->ef_efile->ef_ef = NULL;
|
|
free(ef);
|
|
|
|
return 0;
|
|
}
|