Squashed 'third_party/elfutils/' content from commit 555e15e
Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/src/size.c b/src/size.c
new file mode 100644
index 0000000..ad8dbcb
--- /dev/null
+++ b/src/size.c
@@ -0,0 +1,657 @@
+/* Print size information from ELF file.
+ Copyright (C) 2000-2007,2009,2012,2014,2015 Red Hat, Inc.
+ This file is part of elfutils.
+ Written by Ulrich Drepper <drepper@redhat.com>, 2000.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ elfutils is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <argp.h>
+#include <error.h>
+#include <fcntl.h>
+#include <gelf.h>
+#include <inttypes.h>
+#include <libelf.h>
+#include <libintl.h>
+#include <locale.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdio_ext.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <system.h>
+#include <printversion.h>
+
+/* Name and version of program. */
+ARGP_PROGRAM_VERSION_HOOK_DEF = print_version;
+
+/* Bug report address. */
+ARGP_PROGRAM_BUG_ADDRESS_DEF = PACKAGE_BUGREPORT;
+
+
+/* Values for the parameters which have no short form. */
+#define OPT_FORMAT 0x100
+#define OPT_RADIX 0x101
+
+/* Definitions of arguments for argp functions. */
+static const struct argp_option options[] =
+{
+ { NULL, 0, NULL, 0, N_("Output format:"), 0 },
+ { "format", OPT_FORMAT, "FORMAT", 0,
+ N_("Use the output format FORMAT. FORMAT can be `bsd' or `sysv'. "
+ "The default is `bsd'"), 0 },
+ { NULL, 'A', NULL, 0, N_("Same as `--format=sysv'"), 0 },
+ { NULL, 'B', NULL, 0, N_("Same as `--format=bsd'"), 0 },
+ { "radix", OPT_RADIX, "RADIX", 0, N_("Use RADIX for printing symbol values"),
+ 0},
+ { NULL, 'd', NULL, 0, N_("Same as `--radix=10'"), 0 },
+ { NULL, 'o', NULL, 0, N_("Same as `--radix=8'"), 0 },
+ { NULL, 'x', NULL, 0, N_("Same as `--radix=16'"), 0 },
+ { NULL, 'f', NULL, 0,
+ N_("Similar to `--format=sysv' output but in one line"), 0 },
+
+ { NULL, 0, NULL, 0, N_("Output options:"), 0 },
+ { NULL, 'F', NULL, 0,
+ N_("Print size and permission flags for loadable segments"), 0 },
+ { "totals", 't', NULL, 0, N_("Display the total sizes (bsd only)"), 0 },
+ { NULL, 0, NULL, 0, NULL, 0 }
+};
+
+/* Short description of program. */
+static const char doc[] = N_("\
+List section sizes of FILEs (a.out by default).");
+
+/* Strings for arguments in help texts. */
+static const char args_doc[] = N_("[FILE...]");
+
+/* Prototype for option handler. */
+static error_t parse_opt (int key, char *arg, struct argp_state *state);
+
+/* Data structure to communicate with argp functions. */
+static struct argp argp =
+{
+ options, parse_opt, args_doc, doc, NULL, NULL, NULL
+};
+
+
+/* Print symbols in file named FNAME. */
+static int process_file (const char *fname);
+
+/* Handle content of archive. */
+static int handle_ar (int fd, Elf *elf, const char *prefix, const char *fname);
+
+/* Handle ELF file. */
+static void handle_elf (Elf *elf, const char *fullname, const char *fname);
+
+/* Show total size. */
+static void show_bsd_totals (void);
+
+#define INTERNAL_ERROR(fname) \
+ error (EXIT_FAILURE, 0, gettext ("%s: INTERNAL ERROR %d (%s): %s"), \
+ fname, __LINE__, PACKAGE_VERSION, elf_errmsg (-1))
+
+
+/* User-selectable options. */
+
+/* The selected output format. */
+static enum
+{
+ format_bsd = 0,
+ format_sysv,
+ format_sysv_one_line,
+ format_segments
+} format;
+
+/* Radix for printed numbers. */
+static enum
+{
+ radix_decimal = 0,
+ radix_hex,
+ radix_octal
+} radix;
+
+
+/* Mapping of radix and binary class to length. */
+static const int length_map[2][3] =
+{
+ [ELFCLASS32 - 1] =
+ {
+ [radix_hex] = 8,
+ [radix_decimal] = 10,
+ [radix_octal] = 11
+ },
+ [ELFCLASS64 - 1] =
+ {
+ [radix_hex] = 16,
+ [radix_decimal] = 20,
+ [radix_octal] = 22
+ }
+};
+
+/* True if total sizes should be printed. */
+static bool totals;
+/* To print the total sizes in a reasonable format remember the higest
+ "class" of ELF binaries processed. */
+static int totals_class;
+
+
+int
+main (int argc, char *argv[])
+{
+ int remaining;
+ int result = 0;
+
+ /* We use no threads here which can interfere with handling a stream. */
+ __fsetlocking (stdin, FSETLOCKING_BYCALLER);
+ __fsetlocking (stdout, FSETLOCKING_BYCALLER);
+ __fsetlocking (stderr, FSETLOCKING_BYCALLER);
+
+ /* Set locale. */
+ setlocale (LC_ALL, "");
+
+ /* Make sure the message catalog can be found. */
+ bindtextdomain (PACKAGE_TARNAME, LOCALEDIR);
+
+ /* Initialize the message catalog. */
+ textdomain (PACKAGE_TARNAME);
+
+ /* Parse and process arguments. */
+ argp_parse (&argp, argc, argv, 0, &remaining, NULL);
+
+
+ /* Tell the library which version we are expecting. */
+ elf_version (EV_CURRENT);
+
+ if (remaining == argc)
+ /* The user didn't specify a name so we use a.out. */
+ result = process_file ("a.out");
+ else
+ /* Process all the remaining files. */
+ do
+ result |= process_file (argv[remaining]);
+ while (++remaining < argc);
+
+ /* Print the total sizes but only if the output format is BSD and at
+ least one file has been correctly read (i.e., we recognized the
+ class). */
+ if (totals && format == format_bsd && totals_class != 0)
+ show_bsd_totals ();
+
+ return result;
+}
+
+
+/* Handle program arguments. */
+static error_t
+parse_opt (int key, char *arg,
+ struct argp_state *state __attribute__ ((unused)))
+{
+ switch (key)
+ {
+ case 'd':
+ radix = radix_decimal;
+ break;
+
+ case 'f':
+ format = format_sysv_one_line;
+ break;
+
+ case 'o':
+ radix = radix_octal;
+ break;
+
+ case 'x':
+ radix = radix_hex;
+ break;
+
+ case 'A':
+ format = format_sysv;
+ break;
+
+ case 'B':
+ format = format_bsd;
+ break;
+
+ case 'F':
+ format = format_segments;
+ break;
+
+ case OPT_FORMAT:
+ if (strcmp (arg, "bsd") == 0 || strcmp (arg, "berkeley") == 0)
+ format = format_bsd;
+ else if (likely (strcmp (arg, "sysv") == 0))
+ format = format_sysv;
+ else
+ error (EXIT_FAILURE, 0, gettext ("Invalid format: %s"), arg);
+ break;
+
+ case OPT_RADIX:
+ if (strcmp (arg, "x") == 0 || strcmp (arg, "16") == 0)
+ radix = radix_hex;
+ else if (strcmp (arg, "d") == 0 || strcmp (arg, "10") == 0)
+ radix = radix_decimal;
+ else if (strcmp (arg, "o") == 0 || strcmp (arg, "8") == 0)
+ radix = radix_octal;
+ else
+ error (EXIT_FAILURE, 0, gettext ("Invalid radix: %s"), arg);
+ break;
+
+ case 't':
+ totals = true;
+ break;
+
+ default:
+ return ARGP_ERR_UNKNOWN;
+ }
+ return 0;
+}
+
+
+/* Open the file and determine the type. */
+static int
+process_file (const char *fname)
+{
+ int fd = open (fname, O_RDONLY);
+ if (unlikely (fd == -1))
+ {
+ error (0, errno, gettext ("cannot open '%s'"), fname);
+ return 1;
+ }
+
+ /* Now get the ELF descriptor. */
+ Elf *elf = elf_begin (fd, ELF_C_READ_MMAP, NULL);
+ if (likely (elf != NULL))
+ {
+ if (elf_kind (elf) == ELF_K_ELF)
+ {
+ handle_elf (elf, NULL, fname);
+
+ if (unlikely (elf_end (elf) != 0))
+ INTERNAL_ERROR (fname);
+
+ if (unlikely (close (fd) != 0))
+ error (EXIT_FAILURE, errno, gettext ("while closing '%s'"), fname);
+
+ return 0;
+ }
+ else if (likely (elf_kind (elf) == ELF_K_AR))
+ {
+ int result = handle_ar (fd, elf, NULL, fname);
+
+ if (unlikely (close (fd) != 0))
+ error (EXIT_FAILURE, errno, gettext ("while closing '%s'"), fname);
+
+ return result;
+ }
+
+ /* We cannot handle this type. Close the descriptor anyway. */
+ if (unlikely (elf_end (elf) != 0))
+ INTERNAL_ERROR (fname);
+ }
+
+ if (unlikely (close (fd) != 0))
+ error (EXIT_FAILURE, errno, gettext ("while closing '%s'"), fname);
+
+ error (0, 0, gettext ("%s: file format not recognized"), fname);
+
+ return 1;
+}
+
+
+/* Print the BSD-style header. This is done exactly once. */
+static void
+print_header (Elf *elf)
+{
+ static int done;
+
+ if (! done)
+ {
+ int ddigits = length_map[gelf_getclass (elf) - 1][radix_decimal];
+ int xdigits = length_map[gelf_getclass (elf) - 1][radix_hex];
+
+ printf ("%*s %*s %*s %*s %*s %s\n",
+ ddigits - 2, sgettext ("bsd|text"),
+ ddigits - 2, sgettext ("bsd|data"),
+ ddigits - 2, sgettext ("bsd|bss"),
+ ddigits - 2, sgettext ("bsd|dec"),
+ xdigits - 2, sgettext ("bsd|hex"),
+ sgettext ("bsd|filename"));
+
+ done = 1;
+ }
+}
+
+
+static int
+handle_ar (int fd, Elf *elf, const char *prefix, const char *fname)
+{
+ size_t prefix_len = prefix == NULL ? 0 : strlen (prefix);
+ size_t fname_len = strlen (fname) + 1;
+ char new_prefix[prefix_len + 1 + fname_len];
+ char *cp = new_prefix;
+
+ /* Create the full name of the file. */
+ if (prefix != NULL)
+ {
+ cp = mempcpy (cp, prefix, prefix_len);
+ *cp++ = ':';
+ }
+ memcpy (cp, fname, fname_len);
+
+ /* Process all the files contained in the archive. */
+ int result = 0;
+ Elf *subelf;
+ Elf_Cmd cmd = ELF_C_READ_MMAP;
+ while ((subelf = elf_begin (fd, cmd, elf)) != NULL)
+ {
+ /* The the header for this element. */
+ Elf_Arhdr *arhdr = elf_getarhdr (subelf);
+
+ if (elf_kind (subelf) == ELF_K_ELF)
+ handle_elf (subelf, new_prefix, arhdr->ar_name);
+ else if (likely (elf_kind (subelf) == ELF_K_AR))
+ result |= handle_ar (fd, subelf, new_prefix, arhdr->ar_name);
+ /* else signal error??? */
+
+ /* Get next archive element. */
+ cmd = elf_next (subelf);
+ if (unlikely (elf_end (subelf) != 0))
+ INTERNAL_ERROR (fname);
+ }
+
+ if (unlikely (elf_end (elf) != 0))
+ INTERNAL_ERROR (fname);
+
+ return result;
+}
+
+
+/* Show sizes in SysV format. */
+static void
+show_sysv (Elf *elf, const char *prefix, const char *fname,
+ const char *fullname)
+{
+ int maxlen = 10;
+ const int digits = length_map[gelf_getclass (elf) - 1][radix];
+
+ /* Get the section header string table index. */
+ size_t shstrndx;
+ if (unlikely (elf_getshdrstrndx (elf, &shstrndx) < 0))
+ error (EXIT_FAILURE, 0,
+ gettext ("cannot get section header string table index"));
+
+ /* First round over the sections: determine the longest section name. */
+ Elf_Scn *scn = NULL;
+ while ((scn = elf_nextscn (elf, scn)) != NULL)
+ {
+ GElf_Shdr shdr_mem;
+ GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem);
+
+ if (shdr == NULL)
+ INTERNAL_ERROR (fullname);
+
+ /* Ignore all sections which are not used at runtime. */
+ const char *name = elf_strptr (elf, shstrndx, shdr->sh_name);
+ if (name != NULL && (shdr->sh_flags & SHF_ALLOC) != 0)
+ maxlen = MAX (maxlen, (int) strlen (name));
+ }
+
+ fputs_unlocked (fname, stdout);
+ if (prefix != NULL)
+ printf (gettext (" (ex %s)"), prefix);
+ printf (":\n%-*s %*s %*s\n",
+ maxlen, sgettext ("sysv|section"),
+ digits - 2, sgettext ("sysv|size"),
+ digits, sgettext ("sysv|addr"));
+
+ /* Iterate over all sections. */
+ GElf_Off total = 0;
+ while ((scn = elf_nextscn (elf, scn)) != NULL)
+ {
+ GElf_Shdr shdr_mem;
+ GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem);
+
+ /* Ignore all sections which are not used at runtime. */
+ if ((shdr->sh_flags & SHF_ALLOC) != 0)
+ {
+ printf ((radix == radix_hex
+ ? "%-*s %*" PRIx64 " %*" PRIx64 "\n"
+ : (radix == radix_decimal
+ ? "%-*s %*" PRId64 " %*" PRId64 "\n"
+ : "%-*s %*" PRIo64 " %*" PRIo64 "\n")),
+ maxlen, elf_strptr (elf, shstrndx, shdr->sh_name),
+ digits - 2, shdr->sh_size,
+ digits, shdr->sh_addr);
+
+ total += shdr->sh_size;
+ }
+ }
+
+ if (radix == radix_hex)
+ printf ("%-*s %*" PRIx64 "\n\n\n", maxlen, sgettext ("sysv|Total"),
+ digits - 2, total);
+ else if (radix == radix_decimal)
+ printf ("%-*s %*" PRId64 "\n\n\n", maxlen, sgettext ("sysv|Total"),
+ digits - 2, total);
+ else
+ printf ("%-*s %*" PRIo64 "\n\n\n", maxlen, sgettext ("sysv|Total"),
+ digits - 2, total);
+}
+
+
+/* Show sizes in SysV format in one line. */
+static void
+show_sysv_one_line (Elf *elf)
+{
+ /* Get the section header string table index. */
+ size_t shstrndx;
+ if (unlikely (elf_getshdrstrndx (elf, &shstrndx) < 0))
+ error (EXIT_FAILURE, 0,
+ gettext ("cannot get section header string table index"));
+
+ /* Iterate over all sections. */
+ GElf_Off total = 0;
+ bool first = true;
+ Elf_Scn *scn = NULL;
+ while ((scn = elf_nextscn (elf, scn)) != NULL)
+ {
+ GElf_Shdr shdr_mem;
+ GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem);
+
+ /* Ignore all sections which are not used at runtime. */
+ if ((shdr->sh_flags & SHF_ALLOC) == 0)
+ continue;
+
+ if (! first)
+ fputs_unlocked (" + ", stdout);
+ first = false;
+
+ printf ((radix == radix_hex ? "%" PRIx64 "(%s)"
+ : (radix == radix_decimal ? "%" PRId64 "(%s)"
+ : "%" PRIo64 "(%s)")),
+ shdr->sh_size, elf_strptr (elf, shstrndx, shdr->sh_name));
+
+ total += shdr->sh_size;
+ }
+
+ if (radix == radix_hex)
+ printf (" = %#" PRIx64 "\n", total);
+ else if (radix == radix_decimal)
+ printf (" = %" PRId64 "\n", total);
+ else
+ printf (" = %" PRIo64 "\n", total);
+}
+
+
+/* Variables to add up the sizes of all files. */
+static uintmax_t total_textsize;
+static uintmax_t total_datasize;
+static uintmax_t total_bsssize;
+
+
+/* Show sizes in BSD format. */
+static void
+show_bsd (Elf *elf, const char *prefix, const char *fname,
+ const char *fullname)
+{
+ GElf_Off textsize = 0;
+ GElf_Off datasize = 0;
+ GElf_Off bsssize = 0;
+ const int ddigits = length_map[gelf_getclass (elf) - 1][radix_decimal];
+ const int xdigits = length_map[gelf_getclass (elf) - 1][radix_hex];
+
+ /* Iterate over all sections. */
+ Elf_Scn *scn = NULL;
+ while ((scn = elf_nextscn (elf, scn)) != NULL)
+ {
+ GElf_Shdr shdr_mem;
+ GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem);
+
+ if (shdr == NULL)
+ INTERNAL_ERROR (fullname);
+
+ /* Ignore all sections which are not marked as loaded. */
+ if ((shdr->sh_flags & SHF_ALLOC) == 0)
+ continue;
+
+ if ((shdr->sh_flags & SHF_WRITE) == 0)
+ textsize += shdr->sh_size;
+ else if (shdr->sh_type == SHT_NOBITS)
+ bsssize += shdr->sh_size;
+ else
+ datasize += shdr->sh_size;
+ }
+
+ printf ("%*" PRId64 " %*" PRId64 " %*" PRId64 " %*" PRId64 " %*"
+ PRIx64 " %s",
+ ddigits - 2, textsize,
+ ddigits - 2, datasize,
+ ddigits - 2, bsssize,
+ ddigits - 2, textsize + datasize + bsssize,
+ xdigits - 2, textsize + datasize + bsssize,
+ fname);
+ if (prefix != NULL)
+ printf (gettext (" (ex %s)"), prefix);
+ fputs_unlocked ("\n", stdout);
+
+ total_textsize += textsize;
+ total_datasize += datasize;
+ total_bsssize += bsssize;
+
+ totals_class = MAX (totals_class, gelf_getclass (elf));
+}
+
+
+/* Show total size. */
+static void
+show_bsd_totals (void)
+{
+ int ddigits = length_map[totals_class - 1][radix_decimal];
+ int xdigits = length_map[totals_class - 1][radix_hex];
+
+ printf ("%*" PRIuMAX " %*" PRIuMAX " %*" PRIuMAX " %*" PRIuMAX " %*"
+ PRIxMAX " %s",
+ ddigits - 2, total_textsize,
+ ddigits - 2, total_datasize,
+ ddigits - 2, total_bsssize,
+ ddigits - 2, total_textsize + total_datasize + total_bsssize,
+ xdigits - 2, total_textsize + total_datasize + total_bsssize,
+ gettext ("(TOTALS)\n"));
+}
+
+
+/* Show size and permission of loadable segments. */
+static void
+show_segments (Elf *elf, const char *fullname)
+{
+ size_t phnum;
+ if (elf_getphdrnum (elf, &phnum) != 0)
+ INTERNAL_ERROR (fullname);
+
+ GElf_Off total = 0;
+ bool first = true;
+ for (size_t cnt = 0; cnt < phnum; ++cnt)
+ {
+ GElf_Phdr phdr_mem;
+ GElf_Phdr *phdr;
+
+ phdr = gelf_getphdr (elf, cnt, &phdr_mem);
+ if (phdr == NULL)
+ INTERNAL_ERROR (fullname);
+
+ if (phdr->p_type != PT_LOAD)
+ /* Only load segments. */
+ continue;
+
+ if (! first)
+ fputs_unlocked (" + ", stdout);
+ first = false;
+
+ printf (radix == radix_hex ? "%" PRIx64 "(%c%c%c)"
+ : (radix == radix_decimal ? "%" PRId64 "(%c%c%c)"
+ : "%" PRIo64 "(%c%c%c)"),
+ phdr->p_memsz,
+ (phdr->p_flags & PF_R) == 0 ? '-' : 'r',
+ (phdr->p_flags & PF_W) == 0 ? '-' : 'w',
+ (phdr->p_flags & PF_X) == 0 ? '-' : 'x');
+
+ total += phdr->p_memsz;
+ }
+
+ if (radix == radix_hex)
+ printf (" = %#" PRIx64 "\n", total);
+ else if (radix == radix_decimal)
+ printf (" = %" PRId64 "\n", total);
+ else
+ printf (" = %" PRIo64 "\n", total);
+}
+
+
+static void
+handle_elf (Elf *elf, const char *prefix, const char *fname)
+{
+ size_t prefix_len = prefix == NULL ? 0 : strlen (prefix);
+ size_t fname_len = strlen (fname) + 1;
+ char fullname[prefix_len + 1 + fname_len];
+ char *cp = fullname;
+
+ /* Create the full name of the file. */
+ if (prefix != NULL)
+ {
+ cp = mempcpy (cp, prefix, prefix_len);
+ *cp++ = ':';
+ }
+ memcpy (cp, fname, fname_len);
+
+ if (format == format_sysv)
+ show_sysv (elf, prefix, fname, fullname);
+ else if (format == format_sysv_one_line)
+ show_sysv_one_line (elf);
+ else if (format == format_segments)
+ show_segments (elf, fullname);
+ else
+ {
+ print_header (elf);
+
+ show_bsd (elf, prefix, fname, fullname);
+ }
+}
+
+
+#include "debugpred.h"