mirror of
https://github.com/autc04/Retro68.git
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54 lines
1.6 KiB
Bash
54 lines
1.6 KiB
Bash
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SCRIPT_NAME=elf
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OUTPUT_FORMAT="elf32-csky-little"
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BIG_OUTPUT_FORMAT="elf32-csky-big"
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LITTLE_OUTPUT_FORMAT="elf32-csky-little"
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NO_REL_RELOCS=yes
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TARGET_PAGE_SIZE=0x400
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MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
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TEXT_START_ADDR=0x60000000
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DATA_ADDR=0x20000000
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# The default address spaces
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# RAM: 0x0 - 0x1FFFFFFF
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# RAM: 0x20000000 - 0x3FFFFFFF
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# RAM: 0x60000000 - 0x7FFFFFFF
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#
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# There are some symbols used in the crt.S
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# __stack: The stack top
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# __heap_start: The heap start
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# __heap_end: The heap end
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# __csky_exit: Be used by qemu to check exit
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OTHER_SYMBOLS='
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PROVIDE (__stack = 0x01000000 - 0x8);
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PROVIDE (__heap_start = 0x00000100);
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PROVIDE (__heap_end = 0x00900000);
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PROVIDE (__csky_exit = 0x10002000);
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'
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CHECK_RELOCS_AFTER_OPEN_INPUT=yes
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NONPAGED_TEXT_START_ADDR=0
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ATTRS_SECTIONS='.csky.attributes 0 : { KEEP (*(.csky.attributes)) KEEP (*(.csky.attributes)) }'
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ARCH=csky
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EMBEDDED=yes
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EXTRA_EM_FILE=cskyelf
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# There is a problem with the NOP value - it must work for both
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# big endian and little endian systems. Unfortunately there is
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# no symmetrical mcore opcode that functions as a noop. The
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# chosen solution is to use "tst r0, r14". This is a symmetrical
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# value, and apart from the corruption of the C bit, it has no other
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# side effects. Since the carry bit is never tested without being
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# explicitly set first, and since the NOP code is only used as a
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# fill value between independently viable pieces of code, it should
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# not matter.
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NOP=0
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ENTRY=__start
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OTHER_BSS_SYMBOLS="__sbss__ = . ;"
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OTHER_BSS_END_SYMBOLS="__ebss__ = . ;"
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# This sets the stack to the top of the simulator memory (2^19 bytes).
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# STACK_ADDR=0x80000
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TEMPLATE_NAME=elf
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