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250 lines
6.7 KiB
C
250 lines
6.7 KiB
C
/* od-avrelf.c -- dump information about an AVR elf object file.
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Copyright (C) 2011-2014 Free Software Foundation, Inc.
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Written by Senthil Kumar Selvaraj, Atmel.
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This file is part of GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "sysdep.h"
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#include <stddef.h>
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#include <time.h>
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#include <stdint.h>
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#include "safe-ctype.h"
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#include "bfd.h"
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#include "objdump.h"
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#include "bucomm.h"
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#include "bfdlink.h"
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#include "bfd.h"
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#include "elf/external.h"
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#include "elf/internal.h"
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/* Index of the options in the options[] array. */
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#define OPT_MEMUSAGE 0
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/* List of actions. */
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static struct objdump_private_option options[] =
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{
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{ "mem-usage", 0 },
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{ NULL, 0 }
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};
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/* Display help. */
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static void
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elf32_avr_help (FILE *stream)
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{
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fprintf (stream, _("\
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For AVR ELF files:\n\
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mem-usage Display memory usage\n\
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"));
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}
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typedef struct tagDeviceInfo
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{
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uint32_t flash_start;
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uint32_t flash_size;
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uint32_t ram_start;
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uint32_t ram_size;
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uint32_t eeprom_start;
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uint32_t eeprom_size;
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char * name;
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} deviceinfo;
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/* Return TRUE if ABFD is handled. */
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static int
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elf32_avr_filter (bfd *abfd)
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{
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return bfd_get_flavour (abfd) == bfd_target_elf_flavour;
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}
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static char*
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elf32_avr_get_note_section_contents (bfd *abfd, bfd_size_type *size)
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{
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asection *section;
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if ((section = bfd_get_section_by_name (abfd, ".note.gnu.avr.deviceinfo")) == NULL)
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return NULL;
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*size = bfd_get_section_size (section);
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char *contents = (char *) xmalloc (*size);
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bfd_get_section_contents (abfd, section, contents, 0, *size);
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return contents;
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}
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static char* elf32_avr_get_note_desc (bfd *abfd, char *contents,
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bfd_size_type size)
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{
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Elf_External_Note *xnp = (Elf_External_Note *) contents;
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Elf_Internal_Note in;
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if (offsetof (Elf_External_Note, name) > size)
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return NULL;
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in.type = bfd_get_32 (abfd, xnp->type);
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in.namesz = bfd_get_32 (abfd, xnp->namesz);
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in.namedata = xnp->name;
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if (in.namesz > contents - in.namedata + size)
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return NULL;
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in.descsz = bfd_get_32 (abfd, xnp->descsz);
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in.descdata = in.namedata + align_power (in.namesz, 2);
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if (in.descsz != 0
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&& (in.descdata >= contents + size
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|| in.descsz > contents - in.descdata + size))
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return NULL;
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if (strcmp (in.namedata, "AVR") != 0)
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return NULL;
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return in.descdata;
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}
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static void
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elf32_avr_get_device_info (bfd *abfd, char *description,
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deviceinfo *device)
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{
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if (description == NULL)
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return;
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const bfd_size_type memory_sizes = 6;
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memcpy (device, description, memory_sizes * sizeof(uint32_t));
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device->name = NULL;
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uint32_t *stroffset_table = ((uint32_t *) description) + memory_sizes;
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bfd_size_type stroffset_table_size = bfd_get_32 (abfd, stroffset_table);
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char *str_table = ((char *) stroffset_table) + stroffset_table_size;
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/* If the only content is the size itself, there's nothing in the table */
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if (stroffset_table_size == 4)
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return;
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/* First entry is the device name index. */
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uint32_t device_name_index = bfd_get_32 (abfd, stroffset_table + 1);
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device->name = str_table + device_name_index;
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}
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static void
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elf32_avr_get_memory_usage (bfd *abfd,
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bfd_size_type *text_usage,
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bfd_size_type *data_usage,
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bfd_size_type *eeprom_usage)
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{
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bfd_size_type avr_datasize = 0;
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bfd_size_type avr_textsize = 0;
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bfd_size_type avr_bsssize = 0;
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bfd_size_type bootloadersize = 0;
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bfd_size_type noinitsize = 0;
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bfd_size_type eepromsize = 0;
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asection *section;
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if ((section = bfd_get_section_by_name (abfd, ".data")) != NULL)
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avr_datasize = bfd_section_size (abfd, section);
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if ((section = bfd_get_section_by_name (abfd, ".text")) != NULL)
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avr_textsize = bfd_section_size (abfd, section);
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if ((section = bfd_get_section_by_name (abfd, ".bss")) != NULL)
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avr_bsssize = bfd_section_size (abfd, section);
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if ((section = bfd_get_section_by_name (abfd, ".bootloader")) != NULL)
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bootloadersize = bfd_section_size (abfd, section);
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if ((section = bfd_get_section_by_name (abfd, ".noinit")) != NULL)
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noinitsize = bfd_section_size (abfd, section);
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if ((section = bfd_get_section_by_name (abfd, ".eeprom")) != NULL)
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eepromsize = bfd_section_size (abfd, section);
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*text_usage = avr_textsize + avr_datasize + bootloadersize;
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*data_usage = avr_datasize + avr_bsssize + noinitsize;
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*eeprom_usage = eepromsize;
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}
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static void
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elf32_avr_dump_mem_usage (bfd *abfd)
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{
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char *description = NULL;
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bfd_size_type note_section_size = 0;
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deviceinfo device = { 0, 0, 0, 0, 0, 0, NULL };
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device.name = "Unknown";
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bfd_size_type data_usage = 0;
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bfd_size_type text_usage = 0;
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bfd_size_type eeprom_usage = 0;
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char *contents = elf32_avr_get_note_section_contents (abfd,
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¬e_section_size);
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if (contents != NULL)
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{
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description = elf32_avr_get_note_desc (abfd, contents, note_section_size);
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elf32_avr_get_device_info (abfd, description, &device);
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}
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elf32_avr_get_memory_usage (abfd, &text_usage, &data_usage,
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&eeprom_usage);
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printf ("AVR Memory Usage\n"
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"----------------\n"
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"Device: %s\n\n", device.name);
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/* Text size */
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printf ("Program:%8ld bytes", text_usage);
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if (device.flash_size > 0)
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printf (" (%2.1f%% Full)", ((float) text_usage / device.flash_size) * 100);
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printf ("\n(.text + .data + .bootloader)\n\n");
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/* Data size */
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printf ("Data: %8ld bytes", data_usage);
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if (device.ram_size > 0)
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printf (" (%2.1f%% Full)", ((float) data_usage / device.ram_size) * 100);
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printf ("\n(.data + .bss + .noinit)\n\n");
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/* EEPROM size */
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if (eeprom_usage > 0)
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{
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printf ("EEPROM: %8ld bytes", eeprom_usage);
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if (device.eeprom_size > 0)
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printf (" (%2.1f%% Full)", ((float) eeprom_usage / device.eeprom_size) * 100);
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printf ("\n(.eeprom)\n\n");
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}
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if (contents != NULL)
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free (contents);
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}
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static void
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elf32_avr_dump (bfd *abfd)
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{
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if (options[OPT_MEMUSAGE].selected)
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elf32_avr_dump_mem_usage (abfd);
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}
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const struct objdump_private_desc objdump_private_desc_elf32_avr =
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{
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elf32_avr_help,
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elf32_avr_filter,
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elf32_avr_dump,
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options
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};
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