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freebsd-dev/contrib/elftoolchain/size/size.c

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/*-
* Copyright (c) 2007 S.Sam Arun Raj
* 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.
*
* 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.
*/
#include <sys/cdefs.h>
#include <assert.h>
#include <err.h>
#include <fcntl.h>
#include <gelf.h>
#include <getopt.h>
#include <libelftc.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "_elftc.h"
ELFTC_VCSID("$Id: size.c 2350 2011-12-19 10:20:06Z jkoshy $");
#define BUF_SIZE 1024
#define ELF_ALIGN(val,x) (((val)+(x)-1) & ~((x)-1))
#define SIZE_VERSION_STRING "size 1.0"
enum return_code {
RETURN_OK,
RETURN_NOINPUT,
RETURN_DATAERR,
RETURN_USAGE
};
enum output_style {
STYLE_BERKELEY,
STYLE_SYSV
};
enum radix_style {
RADIX_OCTAL,
RADIX_DECIMAL,
RADIX_HEX
};
static uint64_t bss_size, data_size, text_size, total_size;
static uint64_t bss_size_total, data_size_total, text_size_total;
static int show_totals;
static int size_option;
static enum radix_style radix = RADIX_DECIMAL;
static enum output_style style = STYLE_BERKELEY;
static const char *default_args[2] = { "a.out", NULL };
static struct {
int row;
int col;
int *width;
char ***tbl;
} *tb;
enum {
OPT_FORMAT,
OPT_RADIX
};
static struct option size_longopts[] = {
{ "format", required_argument, &size_option, OPT_FORMAT },
{ "help", no_argument, NULL, 'h' },
{ "radix", required_argument, &size_option, OPT_RADIX },
{ "totals", no_argument, NULL, 't' },
{ "version", no_argument, NULL, 'V' },
{ NULL, 0, NULL, 0 }
};
static void berkeley_calc(GElf_Shdr *);
static void berkeley_footer(const char *, const char *, const char *);
static void berkeley_header(void);
static void berkeley_totals(void);
static int handle_core(char const *, Elf *elf, GElf_Ehdr *);
static void handle_core_note(Elf *, GElf_Ehdr *, GElf_Phdr *, char **);
static int handle_elf(char const *);
static void handle_phdr(Elf *, GElf_Ehdr *, GElf_Phdr *, uint32_t,
const char *);
static void show_version(void);
static void sysv_header(const char *, Elf_Arhdr *);
static void sysv_footer(void);
static void sysv_calc(Elf *, GElf_Ehdr *, GElf_Shdr *);
static void usage(void);
static void tbl_new(int);
static void tbl_print(const char *, int);
static void tbl_print_num(uint64_t, enum radix_style, int);
static void tbl_append(void);
static void tbl_flush(void);
/*
* size utility using elf(3) and gelf(3) API to list section sizes and
* total in elf files. Supports only elf files (core dumps in elf
* included) that can be opened by libelf, other formats are not supported.
*/
int
main(int argc, char **argv)
{
int ch, r, rc;
const char **files, *fn;
rc = RETURN_OK;
if (elf_version(EV_CURRENT) == EV_NONE)
errx(EXIT_FAILURE, "ELF library initialization failed: %s",
elf_errmsg(-1));
while ((ch = getopt_long(argc, argv, "ABVdhotx", size_longopts,
NULL)) != -1)
switch((char)ch) {
case 'A':
style = STYLE_SYSV;
break;
case 'B':
style = STYLE_BERKELEY;
break;
case 'V':
show_version();
break;
case 'd':
radix = RADIX_DECIMAL;
break;
case 'o':
radix = RADIX_OCTAL;
break;
case 't':
show_totals = 1;
break;
case 'x':
radix = RADIX_HEX;
break;
case 0:
switch (size_option) {
case OPT_FORMAT:
if (*optarg == 's' || *optarg == 'S')
style = STYLE_SYSV;
else if (*optarg == 'b' || *optarg == 'B')
style = STYLE_BERKELEY;
else {
warnx("unrecognized format \"%s\".",
optarg);
usage();
}
break;
case OPT_RADIX:
r = strtol(optarg, NULL, 10);
if (r == 8)
radix = RADIX_OCTAL;
else if (r == 10)
radix = RADIX_DECIMAL;
else if (r == 16)
radix = RADIX_HEX;
else {
warnx("unsupported radix \"%s\".",
optarg);
usage();
}
break;
default:
err(EXIT_FAILURE, "Error in option handling.");
/*NOTREACHED*/
}
break;
case 'h':
case '?':
default:
usage();
/* NOTREACHED */
}
argc -= optind;
argv += optind;
files = (argc == 0) ? default_args : (void *) argv;
while ((fn = *files) != NULL) {
rc = handle_elf(fn);
if (rc != RETURN_OK)
warnx(rc == RETURN_NOINPUT ?
"'%s': No such file" :
"%s: File format not recognized", fn);
files++;
}
if (style == STYLE_BERKELEY) {
if (show_totals)
berkeley_totals();
tbl_flush();
}
return (rc);
}
static Elf_Data *
xlatetom(Elf *elf, GElf_Ehdr *elfhdr, void *_src, void *_dst,
Elf_Type type, size_t size)
{
Elf_Data src, dst;
src.d_buf = _src;
src.d_type = type;
src.d_version = elfhdr->e_version;
src.d_size = size;
dst.d_buf = _dst;
dst.d_version = elfhdr->e_version;
dst.d_size = size;
return (gelf_xlatetom(elf, &dst, &src, elfhdr->e_ident[EI_DATA]));
}
#define NOTE_OFFSET_32(nhdr, namesz, offset) \
((char *)nhdr + sizeof(Elf32_Nhdr) + \
ELF_ALIGN((int32_t)namesz, 4) + offset)
#define NOTE_OFFSET_64(nhdr, namesz, offset) \
((char *)nhdr + sizeof(Elf32_Nhdr) + \
ELF_ALIGN((int32_t)namesz, 8) + offset)
#define PID32(nhdr, namesz, offset) \
(pid_t)*((int *)((uintptr_t)NOTE_OFFSET_32(nhdr, \
namesz, offset)));
#define PID64(nhdr, namesz, offset) \
(pid_t)*((int *)((uintptr_t)NOTE_OFFSET_64(nhdr, \
namesz, offset)));
#define NEXT_NOTE(elfhdr, descsz, namesz, offset) do { \
if (elfhdr->e_ident[EI_CLASS] == ELFCLASS32) { \
offset += ELF_ALIGN((int32_t)descsz, 4) + \
sizeof(Elf32_Nhdr) + \
ELF_ALIGN((int32_t)namesz, 4); \
} else { \
offset += ELF_ALIGN((int32_t)descsz, 8) + \
sizeof(Elf32_Nhdr) + \
ELF_ALIGN((int32_t)namesz, 8); \
} \
} while (0)
/*
* Parse individual note entries inside a PT_NOTE segment.
*/
static void
handle_core_note(Elf *elf, GElf_Ehdr *elfhdr, GElf_Phdr *phdr,
char **cmd_line)
{
size_t max_size;
uint64_t raw_size;
GElf_Off offset;
static pid_t pid;
uintptr_t ver;
Elf32_Nhdr *nhdr, nhdr_l;
static int reg_pseudo = 0, reg2_pseudo = 0 /*, regxfp_pseudo = 0*/;
char buf[BUF_SIZE], *data, *name;
if (elf == NULL || elfhdr == NULL || phdr == NULL)
return;
data = elf_rawfile(elf, &max_size);
offset = phdr->p_offset;
while (data != NULL && offset < phdr->p_offset + phdr->p_filesz) {
nhdr = (Elf32_Nhdr *)(uintptr_t)((char*)data + offset);
memset(&nhdr_l, 0, sizeof(Elf32_Nhdr));
if (!xlatetom(elf, elfhdr, &nhdr->n_type, &nhdr_l.n_type,
ELF_T_WORD, sizeof(Elf32_Word)) ||
!xlatetom(elf, elfhdr, &nhdr->n_descsz, &nhdr_l.n_descsz,
ELF_T_WORD, sizeof(Elf32_Word)) ||
!xlatetom(elf, elfhdr, &nhdr->n_namesz, &nhdr_l.n_namesz,
ELF_T_WORD, sizeof(Elf32_Word)))
break;
name = (char *)((char *)nhdr + sizeof(Elf32_Nhdr));
switch (nhdr_l.n_type) {
case NT_PRSTATUS: {
raw_size = 0;
if (elfhdr->e_ident[EI_OSABI] == ELFOSABI_FREEBSD &&
nhdr_l.n_namesz == 0x8 &&
!strcmp(name,"FreeBSD")) {
if (elfhdr->e_ident[EI_CLASS] == ELFCLASS32) {
raw_size = (uint64_t)*((uint32_t *)
(uintptr_t)(name +
ELF_ALIGN((int32_t)
nhdr_l.n_namesz, 4) + 8));
ver = (uintptr_t)NOTE_OFFSET_32(nhdr,
nhdr_l.n_namesz,0);
if (*((int *)ver) == 1)
pid = PID32(nhdr,
nhdr_l.n_namesz, 24);
} else {
raw_size = *((uint64_t *)(uintptr_t)
(name + ELF_ALIGN((int32_t)
nhdr_l.n_namesz, 8) + 16));
ver = (uintptr_t)NOTE_OFFSET_64(nhdr,
nhdr_l.n_namesz,0);
if (*((int *)ver) == 1)
pid = PID64(nhdr,
nhdr_l.n_namesz, 40);
}
xlatetom(elf, elfhdr, &raw_size, &raw_size,
ELF_T_WORD, sizeof(uint64_t));
xlatetom(elf, elfhdr, &pid, &pid, ELF_T_WORD,
sizeof(pid_t));
}
if (raw_size != 0 && style == STYLE_SYSV) {
(void) snprintf(buf, BUF_SIZE, "%s/%d",
".reg", pid);
tbl_append();
tbl_print(buf, 0);
tbl_print_num(raw_size, radix, 1);
tbl_print_num(0, radix, 2);
if (!reg_pseudo) {
tbl_append();
tbl_print(".reg", 0);
tbl_print_num(raw_size, radix, 1);
tbl_print_num(0, radix, 2);
reg_pseudo = 1;
text_size_total += raw_size;
}
text_size_total += raw_size;
}
}
break;
case NT_FPREGSET: /* same as NT_PRFPREG */
if (style == STYLE_SYSV) {
(void) snprintf(buf, BUF_SIZE,
"%s/%d", ".reg2", pid);
tbl_append();
tbl_print(buf, 0);
tbl_print_num(nhdr_l.n_descsz, radix, 1);
tbl_print_num(0, radix, 2);
if (!reg2_pseudo) {
tbl_append();
tbl_print(".reg2", 0);
tbl_print_num(nhdr_l.n_descsz, radix,
1);
tbl_print_num(0, radix, 2);
reg2_pseudo = 1;
text_size_total += nhdr_l.n_descsz;
}
text_size_total += nhdr_l.n_descsz;
}
break;
#if 0
case NT_AUXV:
if (style == STYLE_SYSV) {
tbl_append();
tbl_print(".auxv", 0);
tbl_print_num(nhdr_l.n_descsz, radix, 1);
tbl_print_num(0, radix, 2);
text_size_total += nhdr_l.n_descsz;
}
break;
case NT_PRXFPREG:
if (style == STYLE_SYSV) {
(void) snprintf(buf, BUF_SIZE, "%s/%d",
".reg-xfp", pid);
tbl_append();
tbl_print(buf, 0);
tbl_print_num(nhdr_l.n_descsz, radix, 1);
tbl_print_num(0, radix, 2);
if (!regxfp_pseudo) {
tbl_append();
tbl_print(".reg-xfp", 0);
tbl_print_num(nhdr_l.n_descsz, radix,
1);
tbl_print_num(0, radix, 2);
regxfp_pseudo = 1;
text_size_total += nhdr_l.n_descsz;
}
text_size_total += nhdr_l.n_descsz;
}
break;
case NT_PSINFO:
#endif
case NT_PRPSINFO: {
/* FreeBSD 64-bit */
if (nhdr_l.n_descsz == 0x78 &&
!strcmp(name,"FreeBSD")) {
*cmd_line = strdup(NOTE_OFFSET_64(nhdr,
nhdr_l.n_namesz, 33));
/* FreeBSD 32-bit */
} else if (nhdr_l.n_descsz == 0x6c &&
!strcmp(name,"FreeBSD")) {
*cmd_line = strdup(NOTE_OFFSET_32(nhdr,
nhdr_l.n_namesz, 25));
}
/* Strip any trailing spaces */
if (*cmd_line != NULL) {
char *s;
s = *cmd_line + strlen(*cmd_line);
while (s > *cmd_line) {
if (*(s-1) != 0x20) break;
s--;
}
*s = 0;
}
break;
}
#if 0
case NT_PSTATUS:
case NT_LWPSTATUS:
#endif
default:
break;
}
NEXT_NOTE(elfhdr, nhdr_l.n_descsz, nhdr_l.n_namesz, offset);
}
}
/*
* Handles program headers except for PT_NOTE, when sysv output stlye is
* choosen, prints out the segment name and length. For berkely output
* style only PT_LOAD segments are handled, and text,
* data, bss size is calculated for them.
*/
static void
handle_phdr(Elf *elf, GElf_Ehdr *elfhdr, GElf_Phdr *phdr,
uint32_t idx, const char *name)
{
uint64_t addr, size;
int split;
char buf[BUF_SIZE];
if (elf == NULL || elfhdr == NULL || phdr == NULL)
return;
size = addr = 0;
split = (phdr->p_memsz > 0) && (phdr->p_filesz > 0) &&
(phdr->p_memsz > phdr->p_filesz);
if (style == STYLE_SYSV) {
(void) snprintf(buf, BUF_SIZE,
"%s%d%s", name, idx, (split ? "a" : ""));
tbl_append();
tbl_print(buf, 0);
tbl_print_num(phdr->p_filesz, radix, 1);
tbl_print_num(phdr->p_vaddr, radix, 2);
text_size_total += phdr->p_filesz;
if (split) {
size = phdr->p_memsz - phdr->p_filesz;
addr = phdr->p_vaddr + phdr->p_filesz;
(void) snprintf(buf, BUF_SIZE, "%s%d%s", name,
idx, "b");
text_size_total += phdr->p_memsz - phdr->p_filesz;
tbl_append();
tbl_print(buf, 0);
tbl_print_num(size, radix, 1);
tbl_print_num(addr, radix, 2);
}
} else {
if (phdr->p_type != PT_LOAD)
return;
if ((phdr->p_flags & PF_W) && !(phdr->p_flags & PF_X)) {
data_size += phdr->p_filesz;
if (split)
data_size += phdr->p_memsz - phdr->p_filesz;
} else {
text_size += phdr->p_filesz;
if (split)
text_size += phdr->p_memsz - phdr->p_filesz;
}
}
}
/*
* Given a core dump file, this function maps program headers to segments.
*/
static int
handle_core(char const *name, Elf *elf, GElf_Ehdr *elfhdr)
{
GElf_Phdr phdr;
uint32_t i;
char *core_cmdline;
const char *seg_name;
if (name == NULL || elf == NULL || elfhdr == NULL)
return (RETURN_DATAERR);
if (elfhdr->e_shnum != 0 || elfhdr->e_type != ET_CORE)
return (RETURN_DATAERR);
seg_name = core_cmdline = NULL;
if (style == STYLE_SYSV)
sysv_header(name, NULL);
else
berkeley_header();
for (i = 0; i < elfhdr->e_phnum; i++) {
if (gelf_getphdr(elf, i, &phdr) != NULL) {
if (phdr.p_type == PT_NOTE) {
handle_phdr(elf, elfhdr, &phdr, i, "note");
handle_core_note(elf, elfhdr, &phdr,
&core_cmdline);
} else {
switch(phdr.p_type) {
case PT_NULL:
seg_name = "null";
break;
case PT_LOAD:
seg_name = "load";
break;
case PT_DYNAMIC:
seg_name = "dynamic";
break;
case PT_INTERP:
seg_name = "interp";
break;
case PT_SHLIB:
seg_name = "shlib";
break;
case PT_PHDR:
seg_name = "phdr";
break;
case PT_GNU_EH_FRAME:
seg_name = "eh_frame_hdr";
break;
case PT_GNU_STACK:
seg_name = "stack";
break;
default:
seg_name = "segment";
}
handle_phdr(elf, elfhdr, &phdr, i, seg_name);
}
}
}
if (style == STYLE_BERKELEY) {
if (core_cmdline != NULL) {
berkeley_footer(core_cmdline, name,
"core file invoked as");
} else {
berkeley_footer(core_cmdline, name, "core file");
}
} else {
sysv_footer();
if (core_cmdline != NULL) {
(void) printf(" (core file invoked as %s)\n\n",
core_cmdline);
} else {
(void) printf(" (core file)\n\n");
}
}
free(core_cmdline);
return (RETURN_OK);
}
/*
* Given an elf object,ar(1) filename, and based on the output style
* and radix format the various sections and their length will be printed
* or the size of the text, data, bss sections will be printed out.
*/
static int
handle_elf(char const *name)
{
GElf_Ehdr elfhdr;
GElf_Shdr shdr;
Elf *elf, *elf1;
Elf_Arhdr *arhdr;
Elf_Scn *scn;
Elf_Cmd elf_cmd;
int exit_code, fd;
if (name == NULL)
return (RETURN_NOINPUT);
if ((fd = open(name, O_RDONLY, 0)) < 0)
return (RETURN_NOINPUT);
elf_cmd = ELF_C_READ;
elf1 = elf_begin(fd, elf_cmd, NULL);
while ((elf = elf_begin(fd, elf_cmd, elf1)) != NULL) {
arhdr = elf_getarhdr(elf);
if (elf_kind(elf) == ELF_K_NONE && arhdr == NULL) {
(void) elf_end(elf);
(void) elf_end(elf1);
(void) close(fd);
return (RETURN_DATAERR);
}
if (elf_kind(elf) != ELF_K_ELF ||
(gelf_getehdr(elf, &elfhdr) == NULL)) {
elf_cmd = elf_next(elf);
(void) elf_end(elf);
warnx("%s: File format not recognized",
arhdr->ar_name);
continue;
}
/* Core dumps are handled seperately */
if (elfhdr.e_shnum == 0 && elfhdr.e_type == ET_CORE) {
exit_code = handle_core(name, elf, &elfhdr);
(void) elf_end(elf);
(void) elf_end(elf1);
(void) close(fd);
return (exit_code);
} else {
scn = NULL;
if (style == STYLE_BERKELEY) {
berkeley_header();
while ((scn = elf_nextscn(elf, scn)) != NULL) {
if (gelf_getshdr(scn, &shdr) != NULL)
berkeley_calc(&shdr);
}
} else {
sysv_header(name, arhdr);
scn = NULL;
while ((scn = elf_nextscn(elf, scn)) != NULL) {
if (gelf_getshdr(scn, &shdr) != NULL)
sysv_calc(elf, &elfhdr, &shdr);
}
}
if (style == STYLE_BERKELEY) {
if (arhdr != NULL) {
berkeley_footer(name, arhdr->ar_name,
"ex");
} else {
berkeley_footer(name, NULL, "ex");
}
} else {
sysv_footer();
}
}
elf_cmd = elf_next(elf);
(void) elf_end(elf);
}
(void) elf_end(elf1);
(void) close(fd);
return (RETURN_OK);
}
/*
* Sysv formatting helper functions.
*/
static void
sysv_header(const char *name, Elf_Arhdr *arhdr)
{
text_size_total = 0;
if (arhdr != NULL)
(void) printf("%s (ex %s):\n", arhdr->ar_name, name);
else
(void) printf("%s :\n", name);
tbl_new(3);
tbl_append();
tbl_print("section", 0);
tbl_print("size", 1);
tbl_print("addr", 2);
}
static void
sysv_calc(Elf *elf, GElf_Ehdr *elfhdr, GElf_Shdr *shdr)
{
char *section_name;
section_name = elf_strptr(elf, elfhdr->e_shstrndx,
(size_t) shdr->sh_name);
if ((shdr->sh_type == SHT_SYMTAB ||
shdr->sh_type == SHT_STRTAB || shdr->sh_type == SHT_RELA ||
shdr->sh_type == SHT_REL) && shdr->sh_addr == 0)
return;
tbl_append();
tbl_print(section_name, 0);
tbl_print_num(shdr->sh_size, radix, 1);
tbl_print_num(shdr->sh_addr, radix, 2);
text_size_total += shdr->sh_size;
}
static void
sysv_footer(void)
{
tbl_append();
tbl_print("Total", 0);
tbl_print_num(text_size_total, radix, 1);
tbl_flush();
putchar('\n');
}
/*
* berkeley style output formatting helper functions.
*/
static void
berkeley_header(void)
{
static int printed;
text_size = data_size = bss_size = 0;
if (!printed) {
tbl_new(6);
tbl_append();
tbl_print("text", 0);
tbl_print("data", 1);
tbl_print("bss", 2);
if (radix == RADIX_OCTAL)
tbl_print("oct", 3);
else
tbl_print("dec", 3);
tbl_print("hex", 4);
tbl_print("filename", 5);
printed = 1;
}
}
static void
berkeley_calc(GElf_Shdr *shdr)
{
if (shdr != NULL) {
if (!(shdr->sh_flags & SHF_ALLOC))
return;
if ((shdr->sh_flags & SHF_ALLOC) &&
((shdr->sh_flags & SHF_EXECINSTR) ||
!(shdr->sh_flags & SHF_WRITE)))
text_size += shdr->sh_size;
else if ((shdr->sh_flags & SHF_ALLOC) &&
(shdr->sh_flags & SHF_WRITE) &&
(shdr->sh_type != SHT_NOBITS))
data_size += shdr->sh_size;
else
bss_size += shdr->sh_size;
}
}
static void
berkeley_totals(void)
{
long unsigned int grand_total;
grand_total = text_size_total + data_size_total + bss_size_total;
tbl_append();
tbl_print_num(text_size_total, radix, 0);
tbl_print_num(data_size_total, radix, 1);
tbl_print_num(bss_size_total, radix, 2);
if (radix == RADIX_OCTAL)
tbl_print_num(grand_total, RADIX_OCTAL, 3);
else
tbl_print_num(grand_total, RADIX_DECIMAL, 3);
tbl_print_num(grand_total, RADIX_HEX, 4);
}
static void
berkeley_footer(const char *name, const char *ar_name, const char *msg)
{
char buf[BUF_SIZE];
total_size = text_size + data_size + bss_size;
if (show_totals) {
text_size_total += text_size;
bss_size_total += bss_size;
data_size_total += data_size;
}
tbl_append();
tbl_print_num(text_size, radix, 0);
tbl_print_num(data_size, radix, 1);
tbl_print_num(bss_size, radix, 2);
if (radix == RADIX_OCTAL)
tbl_print_num(total_size, RADIX_OCTAL, 3);
else
tbl_print_num(total_size, RADIX_DECIMAL, 3);
tbl_print_num(total_size, RADIX_HEX, 4);
if (ar_name != NULL && name != NULL)
(void) snprintf(buf, BUF_SIZE, "%s (%s %s)", ar_name, msg,
name);
else if (ar_name != NULL && name == NULL)
(void) snprintf(buf, BUF_SIZE, "%s (%s)", ar_name, msg);
else
(void) snprintf(buf, BUF_SIZE, "%s", name);
tbl_print(buf, 5);
}
static void
tbl_new(int col)
{
assert(tb == NULL);
assert(col > 0);
if ((tb = calloc(1, sizeof(*tb))) == NULL)
err(EXIT_FAILURE, "calloc");
if ((tb->tbl = calloc(col, sizeof(*tb->tbl))) == NULL)
err(EXIT_FAILURE, "calloc");
if ((tb->width = calloc(col, sizeof(*tb->width))) == NULL)
err(EXIT_FAILURE, "calloc");
tb->col = col;
tb->row = 0;
}
static void
tbl_print(const char *s, int col)
{
int len;
assert(tb != NULL && tb->col > 0 && tb->row > 0 && col < tb->col);
assert(s != NULL && tb->tbl[col][tb->row - 1] == NULL);
if ((tb->tbl[col][tb->row - 1] = strdup(s)) == NULL)
err(EXIT_FAILURE, "strdup");
len = strlen(s);
if (len > tb->width[col])
tb->width[col] = len;
}
static void
tbl_print_num(uint64_t num, enum radix_style rad, int col)
{
char buf[BUF_SIZE];
(void) snprintf(buf, BUF_SIZE, (rad == RADIX_DECIMAL ? "%ju" :
((rad == RADIX_OCTAL) ? "0%jo" : "0x%jx")), (uintmax_t) num);
tbl_print(buf, col);
}
static void
tbl_append(void)
{
int i;
assert(tb != NULL && tb->col > 0);
tb->row++;
for (i = 0; i < tb->col; i++) {
tb->tbl[i] = realloc(tb->tbl[i], sizeof(*tb->tbl[i]) * tb->row);
if (tb->tbl[i] == NULL)
err(EXIT_FAILURE, "realloc");
tb->tbl[i][tb->row - 1] = NULL;
}
}
static void
tbl_flush(void)
{
const char *str;
int i, j;
if (tb == NULL)
return;
assert(tb->col > 0);
for (i = 0; i < tb->row; i++) {
if (style == STYLE_BERKELEY)
printf(" ");
for (j = 0; j < tb->col; j++) {
str = (tb->tbl[j][i] != NULL ? tb->tbl[j][i] : "");
if (style == STYLE_SYSV && j == 0)
printf("%-*s", tb->width[j], str);
else if (style == STYLE_BERKELEY && j == tb->col - 1)
printf("%s", str);
else
printf("%*s", tb->width[j], str);
if (j == tb->col -1)
putchar('\n');
else
printf(" ");
}
}
for (i = 0; i < tb->col; i++) {
for (j = 0; j < tb->row; j++) {
if (tb->tbl[i][j])
free(tb->tbl[i][j]);
}
free(tb->tbl[i]);
}
free(tb->tbl);
free(tb->width);
free(tb);
tb = NULL;
}
#define USAGE_MESSAGE "\
Usage: %s [options] file ...\n\
Display sizes of ELF sections.\n\n\
Options:\n\
--format=format Display output in specified format. Supported\n\
values are `berkeley' and `sysv'.\n\
--help Display this help message and exit.\n\
--radix=radix Display numeric values in the specified radix.\n\
Supported values are: 8, 10 and 16.\n\
--totals Show cumulative totals of section sizes.\n\
--version Display a version identifier and exit.\n\
-A Equivalent to `--format=sysv'.\n\
-B Equivalent to `--format=berkeley'.\n\
-V Equivalent to `--version'.\n\
-d Equivalent to `--radix=10'.\n\
-h Same as option --help.\n\
-o Equivalent to `--radix=8'.\n\
-t Equivalent to option --totals.\n\
-x Equivalent to `--radix=16'.\n"
static void
usage(void)
{
(void) fprintf(stderr, USAGE_MESSAGE, ELFTC_GETPROGNAME());
exit(EXIT_FAILURE);
}
static void
show_version(void)
{
(void) printf("%s (%s)\n", ELFTC_GETPROGNAME(), elftc_version());
exit(EXIT_SUCCESS);
}
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