[deliverable/binutils-gdb.git] / ld / emulparams / elf32mcore.sh

SCRIPT_NAME=elf
OUTPUT_FORMAT="elf32-mcore-little"
BIG_OUTPUT_FORMAT="elf32-mcore-big"
LITTLE_OUTPUT_FORMAT="elf32-mcore-little"
PAGE_SIZE=0x1000
TARGET_PAGE_SIZE=0x400
MAXPAGESIZE=0x1000
TEXT_START_ADDR=0
NONPAGED_TEXT_START_ADDR=0
ARCH=mcore
EMBEDDED=yes

# There is a problem with the NOP value - it must work for both
# big endian and little endian systems.  Unfortunately there is
# no symmetrical mcore opcode that functions as a noop.  The
# chosen solution is to use "tst r0, r14".  This is a symetrical
# value, and apart from the corruption of the C bit, it has no other
# side effects.  Since the carry bit is never tested without being
# explicitly set first, and since the NOP code is only used as a
# fill value between independantly viable peices of code, it should
# not matter.
NOP=0x0e0e

OTHER_BSS_SYMBOLS="__bss_start__ = . ;"
OTHER_BSS_END_SYMBOLS="__bss_end__ = . ;"

# Hmmm, there's got to be a better way.  This sets the stack to the
# top of the simulator memory (2^19 bytes).
OTHER_RELOCATING_SECTIONS='.stack 0x80000 : { _stack = .; *(.stack) }'

TEMPLATE_NAME=elf32
GENERATE_SHLIB_SCRIPT=yes

# This code gets inserted into the generic elf32.sc linker script
# and allows us to define our own command line switches.
PARSE_AND_LIST_ARGS='

#define OPTION_BASE_FILE		300

#include "getopt.h"

static struct option longopts[] =
{
  {"base-file", required_argument, NULL, OPTION_BASE_FILE},
  {NULL, no_argument, NULL, 0}
};

static void
gld_elf32mcore_list_options (file)
     FILE * file;
{
  fprintf (file, _("  --base_file <basefile>      Generate a base file for relocatable DLLs\n"));
}

static int
gld_elf32mcore_parse_args (argc, argv)
     int argc;
     char ** argv;
{
  int        longind;
  int        optc;
  int        prevoptind = optind;
  int        prevopterr = opterr;
  int        wanterror;
  static int lastoptind = -1;

  if (lastoptind != optind)
    opterr = 0;
  
  wanterror  = opterr;
  lastoptind = optind;

  optc   = getopt_long_only (argc, argv, "-", longopts, & longind);
  opterr = prevopterr;

  switch (optc)
    {
    default:
      if (wanterror)
	xexit (1);
      optind =  prevoptind;
      return 0;

    case OPTION_BASE_FILE:
      link_info.base_file = (PTR) fopen (optarg, FOPEN_WB);
      if (link_info.base_file == NULL)
	{
	  /* xgettext:c-format */
	  fprintf (stderr, _("%s: Cannot open base file %s\n"),
		   program_name, optarg);
	  xexit (1);
	}
      break;
    }
  
  return 1;
}

'
Commit	Line	Data
09a3f5d4	1	SCRIPT_NAME=elf
829ce307	2	OUTPUT_FORMAT="elf32-mcore-little"
09a3f5d4 NC	3	BIG_OUTPUT_FORMAT="elf32-mcore-big"
	4	LITTLE_OUTPUT_FORMAT="elf32-mcore-little"
	5	PAGE_SIZE=0x1000
	6	TARGET_PAGE_SIZE=0x400
	7	MAXPAGESIZE=0x1000
	8	TEXT_START_ADDR=0
	9	NONPAGED_TEXT_START_ADDR=0
	10	ARCH=mcore
	11	EMBEDDED=yes
	12
	13	# There is a problem with the NOP value - it must work for both
	14	# big endian and little endian systems. Unfortunately there is
	15	# no symmetrical mcore opcode that functions as a noop. The
	16	# chosen solution is to use "tst r0, r14". This is a symetrical
	17	# value, and apart from the corruption of the C bit, it has no other
	18	# side effects. Since the carry bit is never tested without being
	19	# explicitly set first, and since the NOP code is only used as a
	20	# fill value between independantly viable peices of code, it should
	21	# not matter.
	22	NOP=0x0e0e
	23
	24	OTHER_BSS_SYMBOLS="__bss_start__ = . ;"
	25	OTHER_BSS_END_SYMBOLS="__bss_end__ = . ;"
	26
	27	# Hmmm, there's got to be a better way. This sets the stack to the
	28	# top of the simulator memory (2^19 bytes).
	29	OTHER_RELOCATING_SECTIONS='.stack 0x80000 : { _stack = .; *(.stack) }'
06f2f02a NC	30
	31	TEMPLATE_NAME=elf32
	32	GENERATE_SHLIB_SCRIPT=yes
093505ad NC	33
	34	# This code gets inserted into the generic elf32.sc linker script
	35	# and allows us to define our own command line switches.
	36	PARSE_AND_LIST_ARGS='
	37
	38	#define OPTION_BASE_FILE 300
	39
f9bc20e7 NC	40	#include "getopt.h"
f9bc20e7 NC	41
093505ad NC	42	static struct option longopts[] =
	43	{
	44	{"base-file", required_argument, NULL, OPTION_BASE_FILE},
	45	{NULL, no_argument, NULL, 0}
	46	};
	47
	48	static void
	49	gld_elf32mcore_list_options (file)
	50	FILE * file;
	51	{
	52	fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
	53	}
	54
	55	static int
	56	gld_elf32mcore_parse_args (argc, argv)
	57	int argc;
	58	char ** argv;
	59	{
	60	int longind;
	61	int optc;
	62	int prevoptind = optind;
	63	int prevopterr = opterr;
	64	int wanterror;
	65	static int lastoptind = -1;
	66
	67	if (lastoptind != optind)
	68	opterr = 0;
	69
	70	wanterror = opterr;
	71	lastoptind = optind;
	72
	73	optc = getopt_long_only (argc, argv, "-", longopts, & longind);
	74	opterr = prevopterr;
	75
	76	switch (optc)
	77	{
	78	default:
	79	if (wanterror)
	80	xexit (1);
	81	optind = prevoptind;
	82	return 0;
	83
	84	case OPTION_BASE_FILE:
	85	link_info.base_file = (PTR) fopen (optarg, FOPEN_WB);
	86	if (link_info.base_file == NULL)
	87	{
	88	/* xgettext:c-format */
	89	fprintf (stderr, _("%s: Cannot open base file %s\n"),
	90	program_name, optarg);
	91	xexit (1);
	92	}
	93	break;
	94	}
	95
	96	return 1;
	97	}
	98
	99	'