binutils/od-elf32_avr.c - binutils-gdb - Git at Google

 /* od-avrelf.c -- dump information about an AVR elf object file.
    Copyright (C) 2011-2019 Free Software Foundation, Inc.
    Written by Senthil Kumar Selvaraj, Atmel.

    This file is part of GNU Binutils.

    This program 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, or (at your option)
    any later version.

    This program 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, write to the Free Software
    Foundation, 51 Franklin Street - Fifth Floor, Boston,
    MA 02110-1301, USA.  */

 #include "sysdep.h"
 #include <stddef.h>
 #include <time.h>
 #include <stdint.h>
 #include "safe-ctype.h"
 #include "bfd.h"
 #include "objdump.h"
 #include "bucomm.h"
 #include "bfdlink.h"
 #include "bfd.h"
 #include "elf/external.h"
 #include "elf/internal.h"
 #include "elf32-avr.h"

 /* Index of the options in the options[] array.  */
 #define OPT_MEMUSAGE 0
 #define OPT_AVRPROP 1

 /* List of actions.  */
 static struct objdump_private_option options[] =
   {
     { "mem-usage", 0 },
     { "avr-prop",  0},
     { NULL, 0 }
   };

 /* Display help.  */

 static void
 elf32_avr_help (FILE *stream)
 {
   fprintf (stream, _("\
 For AVR ELF files:\n\
   mem-usage   Display memory usage\n\
   avr-prop    Display contents of .avr.prop section\n\
 "));
 }

 typedef struct tagDeviceInfo
 {
     uint32_t flash_start;
     uint32_t flash_size;
     uint32_t ram_start;
     uint32_t ram_size;
     uint32_t eeprom_start;
     uint32_t eeprom_size;
     char * name;
 } deviceinfo;


 /* Return TRUE if ABFD is handled.  */

 static int
 elf32_avr_filter (bfd *abfd)
 {
   return bfd_get_flavour (abfd) == bfd_target_elf_flavour;
 }

 static char*
 elf32_avr_get_note_section_contents (bfd *abfd, bfd_size_type *size)
 {
   asection *section;

   if ((section = bfd_get_section_by_name (abfd, ".note.gnu.avr.deviceinfo")) == NULL)
     return NULL;

   *size = bfd_section_size (section);
   char *contents = (char *) xmalloc (*size);
   bfd_get_section_contents (abfd, section, contents, 0, *size);

   return contents;
 }

 static char* elf32_avr_get_note_desc (bfd *abfd, char *contents,
         bfd_size_type size)
 {
   Elf_External_Note *xnp = (Elf_External_Note *) contents;
   Elf_Internal_Note in;

   if (offsetof (Elf_External_Note, name) > size)
     return NULL;

   in.type = bfd_get_32 (abfd, xnp->type);
   in.namesz = bfd_get_32 (abfd, xnp->namesz);
   in.namedata = xnp->name;
   if (in.namesz > contents - in.namedata + size)
     return NULL;

   in.descsz = bfd_get_32 (abfd, xnp->descsz);
   in.descdata = in.namedata + align_power (in.namesz, 2);
   if (in.descsz != 0
         && (in.descdata >= contents + size
             || in.descsz > contents - in.descdata + size))
     return NULL;

   if (strcmp (in.namedata, "AVR") != 0)
     return NULL;

   return in.descdata;
 }

 static void
 elf32_avr_get_device_info (bfd *abfd, char *description,
         deviceinfo *device)
 {
   if (description == NULL)
     return;

   const bfd_size_type memory_sizes = 6;

   memcpy (device, description, memory_sizes * sizeof(uint32_t));
   device->name = NULL;

   uint32_t *stroffset_table = ((uint32_t *) description) + memory_sizes;
   bfd_size_type stroffset_table_size = bfd_get_32 (abfd, stroffset_table);
   char *str_table = ((char *) stroffset_table) + stroffset_table_size;

   /* If the only content is the size itself, there's nothing in the table */
   if (stroffset_table_size == 4)
     return;

   /* First entry is the device name index. */
   uint32_t device_name_index = bfd_get_32 (abfd, stroffset_table + 1);

   device->name = str_table + device_name_index;
 }

 static void
 elf32_avr_get_memory_usage (bfd *abfd,
         bfd_size_type *text_usage,
         bfd_size_type *data_usage,
         bfd_size_type *eeprom_usage)
 {

   bfd_size_type avr_datasize = 0;
   bfd_size_type avr_textsize = 0;
   bfd_size_type avr_bsssize = 0;
   bfd_size_type bootloadersize = 0;
   bfd_size_type noinitsize = 0;
   bfd_size_type eepromsize = 0;
   asection *section;

   if ((section = bfd_get_section_by_name (abfd, ".data")) != NULL)
     avr_datasize = bfd_section_size (section);
   if ((section = bfd_get_section_by_name (abfd, ".text")) != NULL)
     avr_textsize = bfd_section_size (section);
   if ((section = bfd_get_section_by_name (abfd, ".bss")) != NULL)
     avr_bsssize = bfd_section_size (section);
   if ((section = bfd_get_section_by_name (abfd, ".bootloader")) != NULL)
     bootloadersize = bfd_section_size (section);
   if ((section = bfd_get_section_by_name (abfd, ".noinit")) != NULL)
     noinitsize = bfd_section_size (section);
   if ((section = bfd_get_section_by_name (abfd, ".eeprom")) != NULL)
     eepromsize = bfd_section_size (section);

   *text_usage = avr_textsize + avr_datasize + bootloadersize;
   *data_usage = avr_datasize + avr_bsssize + noinitsize;
   *eeprom_usage = eepromsize;
 }

 static void
 elf32_avr_dump_mem_usage (bfd *abfd)
 {
   char *description = NULL;
   bfd_size_type note_section_size = 0;

   deviceinfo device = { 0, 0, 0, 0, 0, 0, NULL };
   device.name = "Unknown";

   bfd_size_type data_usage = 0;
   bfd_size_type text_usage = 0;
   bfd_size_type eeprom_usage = 0;

   char *contents = elf32_avr_get_note_section_contents (abfd,
     &note_section_size);

   if (contents != NULL)
     {
       description = elf32_avr_get_note_desc (abfd, contents, note_section_size);
       elf32_avr_get_device_info (abfd, description, &device);
     }

   elf32_avr_get_memory_usage (abfd, &text_usage, &data_usage,
      &eeprom_usage);

   printf ("AVR Memory Usage\n"
           "----------------\n"
           "Device: %s\n\n", device.name);

   /* Text size */
   printf ("Program:%8ld bytes", text_usage);
   if (device.flash_size > 0)
     printf (" (%2.1f%% Full)", ((float) text_usage / device.flash_size) * 100);

   printf ("\n(.text + .data + .bootloader)\n\n");

   /* Data size */
   printf ("Data:   %8ld bytes", data_usage);
   if (device.ram_size > 0)
     printf (" (%2.1f%% Full)", ((float) data_usage / device.ram_size) * 100);

   printf ("\n(.data + .bss + .noinit)\n\n");

   /* EEPROM size */
   if (eeprom_usage > 0)
     {
       printf ("EEPROM: %8ld bytes", eeprom_usage);
       if (device.eeprom_size > 0)
         printf (" (%2.1f%% Full)", ((float) eeprom_usage / device.eeprom_size) * 100);

       printf ("\n(.eeprom)\n\n");
     }

   if (contents != NULL)
     free (contents);

 }

 static void
 elf32_avr_dump_avr_prop (bfd *abfd)
 {
   struct avr_property_record_list *r_list;
   unsigned int i;

   r_list = avr_elf32_load_property_records (abfd);
   if (r_list == NULL)
     return;

   printf ("\nContents of `%s' section:\n\n", r_list->section->name);

   printf ("  Version: %d\n", r_list->version);
   printf ("  Flags:   %#x\n\n", r_list->flags);

   for (i = 0; i < r_list->record_count; ++i)
     {
       printf ("   %d %s @ %s + %#08lx (%#08lx)\n",
 	      i,
 	      avr_elf32_property_record_name (&r_list->records [i]),
 	      r_list->records [i].section->name,
 	      r_list->records [i].offset,
 	      (bfd_section_vma (r_list->records [i].section)
 	       + r_list->records [i].offset));
       switch (r_list->records [i].type)
         {
         case RECORD_ORG:
           /* Nothing else to print.  */
           break;
         case RECORD_ORG_AND_FILL:
           printf ("     Fill: %#08lx\n",
                   r_list->records [i].data.org.fill);
           break;
         case RECORD_ALIGN:
           printf ("     Align: %#08lx\n",
                   r_list->records [i].data.align.bytes);
           break;
         case RECORD_ALIGN_AND_FILL:
           printf ("     Align: %#08lx, Fill: %#08lx\n",
                   r_list->records [i].data.align.bytes,
                   r_list->records [i].data.align.fill);
           break;
         }
     }

   free (r_list);
 }

 static void
 elf32_avr_dump (bfd *abfd)
 {
   if (options[OPT_MEMUSAGE].selected)
     elf32_avr_dump_mem_usage (abfd);
   if (options[OPT_AVRPROP].selected)
     elf32_avr_dump_avr_prop (abfd);
 }

 const struct objdump_private_desc objdump_private_desc_elf32_avr =
   {
     elf32_avr_help,
     elf32_avr_filter,
     elf32_avr_dump,
     options
   };
	/* od-avrelf.c -- dump information about an AVR elf object file.
	Copyright (C) 2011-2019 Free Software Foundation, Inc.
	Written by Senthil Kumar Selvaraj, Atmel.

	This file is part of GNU Binutils.

	This program 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, or (at your option)
	any later version.

	This program 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, write to the Free Software
	Foundation, 51 Franklin Street - Fifth Floor, Boston,
	MA 02110-1301, USA. */

	#include "sysdep.h"
	#include <stddef.h>
	#include <time.h>
	#include <stdint.h>
	#include "safe-ctype.h"
	#include "bfd.h"
	#include "objdump.h"
	#include "bucomm.h"
	#include "bfdlink.h"
	#include "bfd.h"
	#include "elf/external.h"
	#include "elf/internal.h"
	#include "elf32-avr.h"

	/* Index of the options in the options[] array. */
	#define OPT_MEMUSAGE 0
	#define OPT_AVRPROP 1

	/* List of actions. */
	static struct objdump_private_option options[] =
	{
	{ "mem-usage", 0 },
	{ "avr-prop", 0},
	{ NULL, 0 }
	};

	/* Display help. */

	static void
	elf32_avr_help (FILE *stream)
	{
	fprintf (stream, _("\
	For AVR ELF files:\n\
	mem-usage Display memory usage\n\
	avr-prop Display contents of .avr.prop section\n\
	"));
	}

	typedef struct tagDeviceInfo
	{
	uint32_t flash_start;
	uint32_t flash_size;
	uint32_t ram_start;
	uint32_t ram_size;
	uint32_t eeprom_start;
	uint32_t eeprom_size;
	char * name;
	} deviceinfo;


	/* Return TRUE if ABFD is handled. */

	static int
	elf32_avr_filter (bfd *abfd)
	{
	return bfd_get_flavour (abfd) == bfd_target_elf_flavour;
	}

	static char*
	elf32_avr_get_note_section_contents (bfd abfd, bfd_size_type size)
	{
	asection *section;

	if ((section = bfd_get_section_by_name (abfd, ".note.gnu.avr.deviceinfo")) == NULL)
	return NULL;

	*size = bfd_section_size (section);
	char contents = (char ) xmalloc (*size);
	bfd_get_section_contents (abfd, section, contents, 0, *size);

	return contents;
	}

	static char* elf32_avr_get_note_desc (bfd abfd, char contents,
	bfd_size_type size)
	{
	Elf_External_Note xnp = (Elf_External_Note ) contents;
	Elf_Internal_Note in;

	if (offsetof (Elf_External_Note, name) > size)
	return NULL;

	in.type = bfd_get_32 (abfd, xnp->type);
	in.namesz = bfd_get_32 (abfd, xnp->namesz);
	in.namedata = xnp->name;
	if (in.namesz > contents - in.namedata + size)
	return NULL;

	in.descsz = bfd_get_32 (abfd, xnp->descsz);
	in.descdata = in.namedata + align_power (in.namesz, 2);
	if (in.descsz != 0
	&& (in.descdata >= contents + size
	\|\| in.descsz > contents - in.descdata + size))
	return NULL;

	if (strcmp (in.namedata, "AVR") != 0)
	return NULL;

	return in.descdata;
	}

	static void
	elf32_avr_get_device_info (bfd abfd, char description,
	deviceinfo *device)
	{
	if (description == NULL)
	return;

	const bfd_size_type memory_sizes = 6;

	memcpy (device, description, memory_sizes * sizeof(uint32_t));
	device->name = NULL;

	uint32_t stroffset_table = ((uint32_t ) description) + memory_sizes;
	bfd_size_type stroffset_table_size = bfd_get_32 (abfd, stroffset_table);
	char str_table = ((char ) stroffset_table) + stroffset_table_size;

	/* If the only content is the size itself, there's nothing in the table */
	if (stroffset_table_size == 4)
	return;

	/* First entry is the device name index. */
	uint32_t device_name_index = bfd_get_32 (abfd, stroffset_table + 1);

	device->name = str_table + device_name_index;
	}

	static void
	elf32_avr_get_memory_usage (bfd *abfd,
	bfd_size_type *text_usage,
	bfd_size_type *data_usage,
	bfd_size_type *eeprom_usage)
	{

	bfd_size_type avr_datasize = 0;
	bfd_size_type avr_textsize = 0;
	bfd_size_type avr_bsssize = 0;
	bfd_size_type bootloadersize = 0;
	bfd_size_type noinitsize = 0;
	bfd_size_type eepromsize = 0;
	asection *section;

	if ((section = bfd_get_section_by_name (abfd, ".data")) != NULL)
	avr_datasize = bfd_section_size (section);
	if ((section = bfd_get_section_by_name (abfd, ".text")) != NULL)
	avr_textsize = bfd_section_size (section);
	if ((section = bfd_get_section_by_name (abfd, ".bss")) != NULL)
	avr_bsssize = bfd_section_size (section);
	if ((section = bfd_get_section_by_name (abfd, ".bootloader")) != NULL)
	bootloadersize = bfd_section_size (section);
	if ((section = bfd_get_section_by_name (abfd, ".noinit")) != NULL)
	noinitsize = bfd_section_size (section);
	if ((section = bfd_get_section_by_name (abfd, ".eeprom")) != NULL)
	eepromsize = bfd_section_size (section);

	*text_usage = avr_textsize + avr_datasize + bootloadersize;
	*data_usage = avr_datasize + avr_bsssize + noinitsize;
	*eeprom_usage = eepromsize;
	}

	static void
	elf32_avr_dump_mem_usage (bfd *abfd)
	{
	char *description = NULL;
	bfd_size_type note_section_size = 0;

	deviceinfo device = { 0, 0, 0, 0, 0, 0, NULL };
	device.name = "Unknown";

	bfd_size_type data_usage = 0;
	bfd_size_type text_usage = 0;
	bfd_size_type eeprom_usage = 0;

	char *contents = elf32_avr_get_note_section_contents (abfd,
	&note_section_size);

	if (contents != NULL)
	{
	description = elf32_avr_get_note_desc (abfd, contents, note_section_size);
	elf32_avr_get_device_info (abfd, description, &device);
	}

	elf32_avr_get_memory_usage (abfd, &text_usage, &data_usage,
	&eeprom_usage);

	printf ("AVR Memory Usage\n"
	"----------------\n"
	"Device: %s\n\n", device.name);

	/* Text size */
	printf ("Program:%8ld bytes", text_usage);
	if (device.flash_size > 0)
	printf (" (%2.1f%% Full)", ((float) text_usage / device.flash_size) * 100);

	printf ("\n(.text + .data + .bootloader)\n\n");

	/* Data size */
	printf ("Data: %8ld bytes", data_usage);
	if (device.ram_size > 0)
	printf (" (%2.1f%% Full)", ((float) data_usage / device.ram_size) * 100);

	printf ("\n(.data + .bss + .noinit)\n\n");

	/* EEPROM size */
	if (eeprom_usage > 0)
	{
	printf ("EEPROM: %8ld bytes", eeprom_usage);
	if (device.eeprom_size > 0)
	printf (" (%2.1f%% Full)", ((float) eeprom_usage / device.eeprom_size) * 100);

	printf ("\n(.eeprom)\n\n");
	}

	if (contents != NULL)
	free (contents);

	}

	static void
	elf32_avr_dump_avr_prop (bfd *abfd)
	{
	struct avr_property_record_list *r_list;
	unsigned int i;

	r_list = avr_elf32_load_property_records (abfd);
	if (r_list == NULL)
	return;

	printf ("\nContents of `%s' section:\n\n", r_list->section->name);

	printf (" Version: %d\n", r_list->version);
	printf (" Flags: %#x\n\n", r_list->flags);

	for (i = 0; i < r_list->record_count; ++i)
	{
	printf (" %d %s @ %s + %#08lx (%#08lx)\n",
	i,
	avr_elf32_property_record_name (&r_list->records [i]),
	r_list->records [i].section->name,
	r_list->records [i].offset,
	(bfd_section_vma (r_list->records [i].section)
	+ r_list->records [i].offset));
	switch (r_list->records [i].type)
	{
	case RECORD_ORG:
	/* Nothing else to print. */
	break;
	case RECORD_ORG_AND_FILL:
	printf (" Fill: %#08lx\n",
	r_list->records [i].data.org.fill);
	break;
	case RECORD_ALIGN:
	printf (" Align: %#08lx\n",
	r_list->records [i].data.align.bytes);
	break;
	case RECORD_ALIGN_AND_FILL:
	printf (" Align: %#08lx, Fill: %#08lx\n",
	r_list->records [i].data.align.bytes,
	r_list->records [i].data.align.fill);
	break;
	}
	}

	free (r_list);
	}

	static void
	elf32_avr_dump (bfd *abfd)
	{
	if (options[OPT_MEMUSAGE].selected)
	elf32_avr_dump_mem_usage (abfd);
	if (options[OPT_AVRPROP].selected)
	elf32_avr_dump_avr_prop (abfd);
	}

	const struct objdump_private_desc objdump_private_desc_elf32_avr =
	{
	elf32_avr_help,
	elf32_avr_filter,
	elf32_avr_dump,
	options
	};