57 lines
1.9 KiB
Python
57 lines
1.9 KiB
Python
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# Linker Script for National Semiconductor's CRX-ELF32.
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# The next line should be uncommented if it is desired to link
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# without libstart.o and directly enter main.
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# ENTRY=_main
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test -z "$ENTRY" && ENTRY=_start
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cat <<EOF
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/* Example Linker Script for linking NS CRX elf32 files. */
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/* The next line forces the entry point (${ENTRY} in this script)
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to be entered in the output file as an undefined symbol.
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It is needed in case the entry point is not called explicitly
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(which is the usual case) AND is in an archive. */
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OUTPUT_FORMAT("${OUTPUT_FORMAT}")
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OUTPUT_ARCH(${ARCH})
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EXTERN(${ENTRY})
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ENTRY(${ENTRY})
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/* Define memory regions. */
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MEMORY
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{
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rom : ORIGIN = 0x2, LENGTH = 3M
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ram : ORIGIN = 4M, LENGTH = 10M
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}
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SECTIONS
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{
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.text : { __TEXT_START = .; *(.text) *(.text.*) *(.gnu.linkonce.t.*) __TEXT_END = .; } > rom
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.rdata : { __RDATA_START = .; *(.rdata_4) *(.rdata_2) *(.rdata_1) *(.rdata.*) *(.gnu.linkonce.r.*) __RDATA_END = .; } > rom
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.ctor ALIGN(4) : { __CTOR_LIST = .; *(.ctors) __CTOR_END = .; } > rom
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.dtor ALIGN(4) : { __DTOR_LIST = .; *(.dtors) __DTOR_END = .; } > rom
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.data : { __DATA_START = .; *(.data_4) *(.data_2) *(.data_1) *(.data) *(.data.*) *(.gnu.linkonce.d.*) __DATA_END = .; } > ram AT > rom
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.bss (NOLOAD) : { __BSS_START = .; *(.bss_4) *(.bss_2) *(.bss_1) *(.bss) *(COMMON) *(.bss.*) *(.gnu.linkonce.b.*) __BSS_END = .; } > ram
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/* You may change the sizes of the following sections to fit the actual
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size your program requires.
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The heap and stack are aligned to the bus width, as a speed optimization
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for accessing data located there. */
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.heap : { . = ALIGN(4); __HEAP_START = .; . += 0x2000; __HEAP_MAX = .; } > ram
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.stack : { . = ALIGN(4); . += 0x6000; __STACK_START = .; } > ram
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.istack : { . = ALIGN(4); . += 0x100; __ISTACK_START = .; } > ram
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}
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__DATA_IMAGE_START = LOADADDR(.data);
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EOF
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