Retro68/binutils/ld/emulparams/elf32mcore.sh
2018-12-28 16:25:28 +01:00

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SCRIPT_NAME=elf
OUTPUT_FORMAT="elf32-mcore-little"
BIG_OUTPUT_FORMAT="elf32-mcore-big"
LITTLE_OUTPUT_FORMAT="elf32-mcore-little"
NO_REL_RELOCS=yes
PAGE_SIZE=0x1000
TARGET_PAGE_SIZE=0x400
MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
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=0x0e0e0e0e
OTHER_BSS_SYMBOLS="${CREATE_SHLIB+PROVIDE (}__bss_start__ = .${CREATE_SHLIB+)};"
OTHER_BSS_END_SYMBOLS="${CREATE_SHLIB+PROVIDE (}__bss_end__ = .${CREATE_SHLIB+)};"
# This sets the stack to the top of the simulator memory (2^19 bytes).
STACK_ADDR=0x80000
TEMPLATE_NAME=elf32
# This code gets inserted into the generic elf32.sc linker script
# and allows us to define our own command line switches.
PARSE_AND_LIST_PROLOGUE='
#define OPTION_BASE_FILE 300
'
PARSE_AND_LIST_LONGOPTS='
{"base-file", required_argument, NULL, OPTION_BASE_FILE},
'
PARSE_AND_LIST_OPTIONS='
fprintf (file, _(" --base_file <basefile> Generate a base file for relocatable DLLs\n"));
'
PARSE_AND_LIST_ARGS_CASES='
case OPTION_BASE_FILE:
link_info.base_file = fopen (optarg, FOPEN_WB);
if (link_info.base_file == NULL)
einfo (_("%F%P: cannot open base file %s\n"), optarg);
break;
'