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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
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;
}
'
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