279 lines
8.4 KiB
Plaintext
279 lines
8.4 KiB
Plaintext
/* Copyright (c) 2013-2015 Red Hat, Inc. All rights reserved.
|
|
|
|
This copyrighted material is made available to anyone wishing to use, modify,
|
|
copy, or redistribute it subject to the terms and conditions of the BSD
|
|
License. This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY expressed or implied, including the implied warranties
|
|
of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. A copy of this license
|
|
is available at http://www.opensource.org/licenses. Any Red Hat trademarks that
|
|
are incorporated in the source code or documentation are not subject to the BSD
|
|
License and may only be used or replicated with the express permission of
|
|
Red Hat, Inc. */
|
|
|
|
/* Default linker script, for normal MSP430 executables. */
|
|
|
|
OUTPUT_ARCH(msp430)
|
|
ENTRY(_start)
|
|
|
|
INCLUDE intr_vectors.ld
|
|
|
|
MEMORY
|
|
{
|
|
RAM (w) : ORIGIN = 0x00500, LENGTH = 0x0eb00
|
|
}
|
|
|
|
SECTIONS
|
|
{
|
|
.resetvec :
|
|
{
|
|
*(.resetvec)
|
|
} > VECT31
|
|
|
|
.rodata :
|
|
{
|
|
. = ALIGN(2);
|
|
*(.plt)
|
|
. = ALIGN(2);
|
|
*(.lower.rodata.* .lower.rodata)
|
|
. = ALIGN(2);
|
|
*(.rodata .rodata.* .gnu.linkonce.r.* .const .const:*)
|
|
. = ALIGN(2);
|
|
*(.either.rodata.* .either.rodata)
|
|
. = ALIGN(2);
|
|
*(.rodata1)
|
|
|
|
KEEP (*(.gcc_except_table)) *(.gcc_except_table.*)
|
|
PROVIDE (__preinit_array_start = .);
|
|
KEEP (*(.preinit_array))
|
|
PROVIDE (__preinit_array_end = .);
|
|
PROVIDE (__init_array_start = .);
|
|
KEEP (*(SORT(.init_array.*)))
|
|
KEEP (*(.init_array))
|
|
PROVIDE (__init_array_end = .);
|
|
PROVIDE (__fini_array_start = .);
|
|
KEEP (*(.fini_array))
|
|
KEEP (*(SORT(.fini_array.*)))
|
|
PROVIDE (__fini_array_end = .);
|
|
|
|
} > RAM
|
|
|
|
/* Note: This is a separate .rodata section for sections which are
|
|
read only but which older linkers treat as read-write.
|
|
This prevents older linkers from marking the entire .rodata
|
|
section as read-write. */
|
|
.rodata2 :
|
|
{
|
|
. = ALIGN(2);
|
|
*(.eh_frame_hdr)
|
|
KEEP (*(.eh_frame))
|
|
|
|
/* gcc uses crtbegin.o to find the start of the constructors, so
|
|
we make sure it is first. Because this is a wildcard, it
|
|
doesn't matter if the user does not actually link against
|
|
crtbegin.o; the linker won't look for a file to match a
|
|
wildcard. The wildcard also means that it doesn't matter which
|
|
directory crtbegin.o is in. */
|
|
KEEP (*crtbegin*.o(.ctors))
|
|
|
|
/* We don't want to include the .ctor section from from the
|
|
crtend.o file until after the sorted ctors. The .ctor section
|
|
from the crtend file contains the end of ctors marker and it
|
|
must be last */
|
|
KEEP (*(EXCLUDE_FILE (*crtend*.o ) .ctors))
|
|
KEEP (*(SORT(.ctors.*)))
|
|
KEEP (*(.ctors))
|
|
|
|
KEEP (*crtbegin*.o(.dtors))
|
|
KEEP (*(EXCLUDE_FILE (*crtend*.o ) .dtors))
|
|
KEEP (*(SORT(.dtors.*)))
|
|
KEEP (*(.dtors))
|
|
} > RAM
|
|
|
|
.text :
|
|
{
|
|
. = ALIGN(2);
|
|
PROVIDE (_start = .);
|
|
KEEP (*(SORT(.crt_*)))
|
|
*(.lowtext)
|
|
*(.lower.text.* .lower.text)
|
|
*(.text .stub .text.* .gnu.linkonce.t.* .text:*)
|
|
*(.either.text.* .either.text)
|
|
KEEP (*(.text.*personality*))
|
|
/* .gnu.warning sections are handled specially by elf32.em. */
|
|
*(.gnu.warning)
|
|
*(.interp .hash .dynsym .dynstr .gnu.version*)
|
|
PROVIDE (__etext = .);
|
|
PROVIDE (_etext = .);
|
|
PROVIDE (etext = .);
|
|
. = ALIGN(2);
|
|
KEEP (*(.init))
|
|
KEEP (*(.fini))
|
|
KEEP (*(.tm_clone_table))
|
|
} > RAM
|
|
|
|
.data :
|
|
{
|
|
. = ALIGN(2);
|
|
PROVIDE (__datastart = .);
|
|
|
|
*(.lower.data.* .lower.data)
|
|
|
|
*(.data .data.* .gnu.linkonce.d.*)
|
|
|
|
*(.either.data.* .either.data)
|
|
|
|
KEEP (*(.jcr))
|
|
*(.data.rel.ro.local) *(.data.rel.ro*)
|
|
*(.dynamic)
|
|
|
|
KEEP (*(.gnu.linkonce.d.*personality*))
|
|
SORT(CONSTRUCTORS)
|
|
*(.data1)
|
|
*(.got.plt) *(.got)
|
|
|
|
/* We want the small data sections together, so single-instruction offsets
|
|
can access them all, and initialized data all before uninitialized, so
|
|
we can shorten the on-disk segment size. */
|
|
. = ALIGN(2);
|
|
*(.sdata .sdata.* .gnu.linkonce.s.* D_2 D_1)
|
|
|
|
. = ALIGN(2);
|
|
_edata = .;
|
|
PROVIDE (edata = .);
|
|
PROVIDE (__dataend = .);
|
|
} > RAM
|
|
|
|
/* Note that crt0 assumes this is a multiple of two; all the
|
|
start/stop symbols are also assumed word-aligned. */
|
|
PROVIDE(__romdatastart = LOADADDR(.data));
|
|
PROVIDE (__romdatacopysize = SIZEOF(.data));
|
|
|
|
.bss :
|
|
{
|
|
. = ALIGN(2);
|
|
PROVIDE (__bssstart = .);
|
|
*(.lower.bss.* .lower.bss)
|
|
*(.dynbss)
|
|
*(.sbss .sbss.*)
|
|
*(.bss .bss.* .gnu.linkonce.b.*)
|
|
*(.either.bss.* .either.bss)
|
|
. = ALIGN(2);
|
|
*(COMMON)
|
|
. = ALIGN(2);
|
|
PROVIDE (__bssend = .);
|
|
} > RAM
|
|
PROVIDE (__bsssize = SIZEOF(.bss));
|
|
|
|
/* This section contains data that is not initialised during load
|
|
*or* application reset. */
|
|
.noinit (NOLOAD) :
|
|
{
|
|
. = ALIGN(2);
|
|
PROVIDE (__noinit_start = .);
|
|
*(.noinit)
|
|
. = ALIGN(2);
|
|
PROVIDE (__noinit_end = .);
|
|
} > RAM
|
|
|
|
/* This section is intended to contain data that *is* initialised during load
|
|
but *not* on application reset. Normally the section would be stored in
|
|
FLASH RAM, but this is not available here. We just have to hope that the
|
|
programmer knows what they are doing. */
|
|
.persistent :
|
|
{
|
|
. = ALIGN(2);
|
|
PROVIDE (__persistent_start = .);
|
|
*(.persistent)
|
|
. = ALIGN(2);
|
|
PROVIDE (__persistent_end = .);
|
|
} > RAM
|
|
|
|
_end = .;
|
|
PROVIDE (end = .);
|
|
|
|
/* The __stack_size value of 0x100 is just a guess, but since it is
|
|
PROVIDEd the user can override it on the command line. It has to be
|
|
set here, rather than inside the .stack section, as symbols defined
|
|
inside sections are only evaluated during the final phase of the link,
|
|
long after the ASSERT is checked. An ASSERT referencing a PROVIDED but
|
|
not yet evaluated symbol will automatically fail.
|
|
|
|
FIXME: It would be nice if this value could be automatically set via
|
|
gcc's -fstack-usage command line option somehow. */
|
|
PROVIDE (__stack_size = 0x100);
|
|
|
|
.stack (ORIGIN (RAM) + LENGTH(RAM)) :
|
|
{
|
|
PROVIDE (__stack = .);
|
|
*(.stack)
|
|
|
|
/* Linker section checking ignores empty sections like
|
|
this one so we have to have our own test here. */
|
|
/* FIXME: This test is triggering erroneously. I have not figured
|
|
out why yet, but I am disabling it for now as it prevents the
|
|
gcc testsuite from working. */
|
|
/* ASSERT (__stack > (_end + __stack_size),
|
|
"Error: Too much data - no room left for the stack"); */
|
|
}
|
|
|
|
/* Make sure that .upper sections are not used without -mlarge support. */
|
|
.upper :
|
|
{
|
|
*(.upper.rodata.* .upper.rodata)
|
|
*(.upper.data.* .upper.data)
|
|
*(.upper.bss.* .upper.bss)
|
|
*(.upper.text.* .upper.text)
|
|
ASSERT (SIZEOF(.upper) == 0, "This MCU does not support high memory");
|
|
}
|
|
|
|
/* The rest are all not normally part of the runtime image. */
|
|
|
|
.MSP430.attributes 0 :
|
|
{
|
|
KEEP (*(.MSP430.attributes))
|
|
KEEP (*(.gnu.attributes))
|
|
KEEP (*(__TI_build_attributes))
|
|
}
|
|
|
|
/* Stabs debugging sections. */
|
|
.stab 0 : { *(.stab) }
|
|
.stabstr 0 : { *(.stabstr) }
|
|
.stab.excl 0 : { *(.stab.excl) }
|
|
.stab.exclstr 0 : { *(.stab.exclstr) }
|
|
.stab.index 0 : { *(.stab.index) }
|
|
.stab.indexstr 0 : { *(.stab.indexstr) }
|
|
.comment 0 : { *(.comment) }
|
|
/* DWARF debug sections.
|
|
Symbols in the DWARF debugging sections are relative to the beginning
|
|
of the section so we begin them at 0. */
|
|
/* DWARF 1. */
|
|
.debug 0 : { *(.debug) }
|
|
.line 0 : { *(.line) }
|
|
/* GNU DWARF 1 extensions. */
|
|
.debug_srcinfo 0 : { *(.debug_srcinfo) }
|
|
.debug_sfnames 0 : { *(.debug_sfnames) }
|
|
/* DWARF 1.1 and DWARF 2. */
|
|
.debug_aranges 0 : { *(.debug_aranges) }
|
|
.debug_pubnames 0 : { *(.debug_pubnames) }
|
|
/* DWARF 2 */
|
|
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
|
|
.debug_abbrev 0 : { *(.debug_abbrev) }
|
|
.debug_line 0 : { *(.debug_line .debug_line.* .debug_line_end ) }
|
|
.debug_frame 0 : { *(.debug_frame) }
|
|
.debug_str 0 : { *(.debug_str) }
|
|
.debug_loc 0 : { *(.debug_loc) }
|
|
.debug_macinfo 0 : { *(.debug_macinfo) }
|
|
/* SGI/MIPS DWARF 2 extensions. */
|
|
.debug_weaknames 0 : { *(.debug_weaknames) }
|
|
.debug_funcnames 0 : { *(.debug_funcnames) }
|
|
.debug_typenames 0 : { *(.debug_typenames) }
|
|
.debug_varnames 0 : { *(.debug_varnames) }
|
|
/* DWARF 3. */
|
|
.debug_pubtypes 0 : { *(.debug_pubtypes) }
|
|
.debug_ranges 0 : { *(.debug_ranges) }
|
|
/* DWARF Extension. */
|
|
.debug_macro 0 : { *(.debug_macro) }
|
|
|
|
/DISCARD/ : { *(.note.GNU-stack) }
|
|
}
|