260 lines
7.8 KiB
Plaintext
260 lines
7.8 KiB
Plaintext
/* Copyright (c) 2013-2015 Red Hat, Inc. All rights reserved.
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This copyrighted material is made available to anyone wishing to use, modify,
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copy, or redistribute it subject to the terms and conditions of the BSD
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License. This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY expressed or implied, including the implied warranties
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of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. A copy of this license
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is available at http://www.opensource.org/licenses. Any Red Hat trademarks that
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are incorporated in the source code or documentation are not subject to the BSD
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License and may only be used or replicated with the express permission of
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Red Hat, Inc. */
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/* Default linker script, for normal MSP430 executables. */
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OUTPUT_ARCH(msp430)
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ENTRY(_start)
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INCLUDE intr_vectors.ld
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MEMORY
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{
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RAM (w) : ORIGIN = 0x00200, LENGTH = 0x0ee00
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}
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SECTIONS
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{
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.resetvec :
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{
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*(.resetvec)
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} > VECT31
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.rodata :
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{
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. = ALIGN(2);
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*(.plt)
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. = ALIGN(2);
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*(.lower.rodata.* .lower.rodata)
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. = ALIGN(2);
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*(.rodata .rodata.* .gnu.linkonce.r.* .const .const:*)
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. = ALIGN(2);
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*(.either.rodata.* .either.rodata)
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. = ALIGN(2);
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*(.rodata1)
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KEEP (*(.gcc_except_table)) *(.gcc_except_table.*)
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PROVIDE (__preinit_array_start = .);
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KEEP (*(.preinit_array))
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PROVIDE (__preinit_array_end = .);
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PROVIDE (__init_array_start = .);
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array))
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PROVIDE (__init_array_end = .);
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PROVIDE (__fini_array_start = .);
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KEEP (*(.fini_array))
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KEEP (*(SORT(.fini_array.*)))
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PROVIDE (__fini_array_end = .);
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LONG(0); /* Sentinel. */
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} > RAM
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/* Note: This is a separate .rodata section for sections which are
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read only but which older linkers treat as read-write.
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This prevents older linkers from marking the entire .rodata
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section as read-write. */
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.rodata2 : {
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. = ALIGN(2);
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*(.eh_frame_hdr)
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KEEP (*(.eh_frame))
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/* gcc uses crtbegin.o to find the start of the constructors, so
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we make sure it is first. Because this is a wildcard, it
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doesn't matter if the user does not actually link against
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crtbegin.o; the linker won't look for a file to match a
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wildcard. The wildcard also means that it doesn't matter which
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directory crtbegin.o is in. */
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KEEP (*crtbegin*.o(.ctors))
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/* We don't want to include the .ctor section from from the
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crtend.o file until after the sorted ctors. The .ctor section
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from the crtend file contains the end of ctors marker and it
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must be last */
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KEEP (*(EXCLUDE_FILE (*crtend*.o ) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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KEEP (*crtbegin*.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend*.o ) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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} > RAM
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.text :
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{
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. = ALIGN(2);
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PROVIDE (_start = .);
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KEEP (*(SORT(.crt_*)))
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*(.lowtext)
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*(.lower.text.* .lower.text)
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*(.text .stub .text.* .gnu.linkonce.t.* .text:*)
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*(.either.text.* .either.text)
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KEEP (*(.text.*personality*))
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/* .gnu.warning sections are handled specially by elf32.em. */
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*(.gnu.warning)
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*(.interp .hash .dynsym .dynstr .gnu.version*)
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PROVIDE (__etext = .);
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PROVIDE (_etext = .);
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PROVIDE (etext = .);
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. = ALIGN(2);
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KEEP (*(.init))
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KEEP (*(.fini))
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KEEP (*(.tm_clone_table))
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} > RAM
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.data :
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{
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. = ALIGN(2);
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PROVIDE (__datastart = .);
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*(.lower.data.* .lower.data)
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*(.data .data.* .gnu.linkonce.d.*)
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*(.either.data.* .either.data)
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KEEP (*(.jcr))
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*(.data.rel.ro.local) *(.data.rel.ro*)
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*(.dynamic)
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KEEP (*(.gnu.linkonce.d.*personality*))
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SORT(CONSTRUCTORS)
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*(.data1)
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*(.got.plt) *(.got)
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/* We want the small data sections together, so single-instruction offsets
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can access them all, and initialized data all before uninitialized, so
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we can shorten the on-disk segment size. */
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. = ALIGN(2);
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*(.sdata .sdata.* .gnu.linkonce.s.* D_2 D_1)
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. = ALIGN(2);
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_edata = .;
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PROVIDE (edata = .);
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PROVIDE (__dataend = .);
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} > RAM
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/* Note that crt0 assumes this is a multiple of two; all the
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start/stop symbols are also assumed word-aligned. */
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PROVIDE(__romdatastart = LOADADDR(.data));
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PROVIDE (__romdatacopysize = SIZEOF(.data));
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.bss :
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{
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. = ALIGN(2);
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PROVIDE (__bssstart = .);
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*(.lower.bss.* .lower.bss)
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*(.dynbss)
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*(.sbss .sbss.*)
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*(.bss .bss.* .gnu.linkonce.b.*)
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*(.either.bss.* .either.bss)
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PROVIDE (__bssend = .);
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} > RAM
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PROVIDE (__bsssize = SIZEOF(.bss));
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/* This section contains data that is not initialised at startup. */
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.noinit (NOLOAD) :
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{
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. = ALIGN(2);
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PROVIDE (__noinit_start = .);
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*(.noinit)
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. = ALIGN(2);
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*(COMMON)
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PROVIDE (__noinit_end = .);
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} > RAM
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_end = .;
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PROVIDE (end = .);
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/* The __stack_size value of 0x100 is just a guess, but since it is
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PROVIDEd the user can override it on the command line. It has to be
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set here, rather than inside the .stack section, as symbols defined
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inside sections are only evaluated during the final phase of the link,
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long after the ASSERT is checked. An ASSERT referencing a PROVIDED but
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not yet evaluated symbol will automatically fail.
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FIXME: It would be nice if this value could be automatically set via
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gcc's -fstack-usage command line option somehow. */
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PROVIDE (__stack_size = 0x100);
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.stack (ORIGIN (RAM) + LENGTH(RAM)) :
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{
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PROVIDE (__stack = .);
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*(.stack)
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/* Linker section checking ignores empty sections like
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this one so we have to have our own test here. */
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ASSERT ((__stack > (_end + __stack_size)),
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"Error: Too much data - no room left for the stack");
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}
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/* Make sure that .upper sections are not used without -mlarge support. */
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.upper :
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{
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*(.upper.rodata.* .upper.rodata)
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*(.upper.data.* .upper.data)
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*(.upper.bss.* .upper.bss)
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*(.upper.text.* .upper.text)
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ASSERT (SIZEOF(.upper) == 0, "This MCU does not support high memory");
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}
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/* The rest are all not normally part of the runtime image. */
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.MP430.attributes 0 :
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{
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KEEP (*(.MSP430.attributes))
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KEEP (*(.gnu.attributes))
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KEEP (*(__TI_build_attributes))
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}
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/* Stabs debugging sections. */
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.stab 0 : { *(.stab) }
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.stabstr 0 : { *(.stabstr) }
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.stab.excl 0 : { *(.stab.excl) }
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.stab.exclstr 0 : { *(.stab.exclstr) }
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.stab.index 0 : { *(.stab.index) }
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.stab.indexstr 0 : { *(.stab.indexstr) }
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.comment 0 : { *(.comment) }
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/* DWARF debug sections.
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Symbols in the DWARF debugging sections are relative to the beginning
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of the section so we begin them at 0. */
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/* DWARF 1. */
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.debug 0 : { *(.debug) }
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.line 0 : { *(.line) }
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/* GNU DWARF 1 extensions. */
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.debug_srcinfo 0 : { *(.debug_srcinfo) }
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.debug_sfnames 0 : { *(.debug_sfnames) }
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/* DWARF 1.1 and DWARF 2. */
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.debug_aranges 0 : { *(.debug_aranges) }
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.debug_pubnames 0 : { *(.debug_pubnames) }
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/* DWARF 2 */
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.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
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.debug_abbrev 0 : { *(.debug_abbrev) }
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.debug_line 0 : { *(.debug_line .debug_line.* .debug_line_end ) }
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.debug_frame 0 : { *(.debug_frame) }
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.debug_str 0 : { *(.debug_str) }
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.debug_loc 0 : { *(.debug_loc) }
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.debug_macinfo 0 : { *(.debug_macinfo) }
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/* SGI/MIPS DWARF 2 extensions. */
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.debug_weaknames 0 : { *(.debug_weaknames) }
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.debug_funcnames 0 : { *(.debug_funcnames) }
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.debug_typenames 0 : { *(.debug_typenames) }
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.debug_varnames 0 : { *(.debug_varnames) }
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/* DWARF 3. */
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.debug_pubtypes 0 : { *(.debug_pubtypes) }
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.debug_ranges 0 : { *(.debug_ranges) }
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/* DWARF Extension. */
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.debug_macro 0 : { *(.debug_macro) }
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/DISCARD/ : { *(.note.GNU-stack) }
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}
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