/* Script for -n: mix text and data on same page */
/* Copyright (C) 2014-2015 Free Software Foundation, Inc.
Copying and distribution of this script, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved. */
/* Linker script for 68HC12 executable (PROM). */
OUTPUT_FORMAT("elf32-m68hc12", "elf32-m68hc12",
"elf32-m68hc12")
OUTPUT_ARCH(m68hc12)
ENTRY(_start)
/* Get memory banks definition from some user configuration file.
This file must be located in some linker directory (search path
with -L
). See fixed memory banks emulation script. */
INCLUDE memory.x;
SECTIONS
{
.hash : { *(.hash) }
.dynsym : { *(.dynsym) }
.dynstr : { *(.dynstr) }
.gnu.version : { *(.gnu.version) }
.gnu.version_d : { *(.gnu.version_d) }
.gnu.version_r : { *(.gnu.version_r) }
.rel.text :
{
*(.rel.text)
*(.rel.text.*)
*(.rel.gnu.linkonce.t.*)
}
.rela.text :
{
*(.rela.text)
*(.rela.text.*)
*(.rela.gnu.linkonce.t.*)
}
.rel.data :
{
*(.rel.data)
*(.rel.data.*)
*(.rel.gnu.linkonce.d.*)
}
.rela.data :
{
*(.rela.data)
*(.rela.data.*)
*(.rela.gnu.linkonce.d.*)
}
.rel.rodata :
{
*(.rel.rodata)
*(.rel.rodata.*)
*(.rel.gnu.linkonce.r.*)
}
.rela.rodata :
{
*(.rela.rodata)
*(.rela.rodata.*)
*(.rela.gnu.linkonce.r.*)
}
.rel.sdata :
{
*(.rel.sdata)
*(.rel.sdata.*)
*(.rel.gnu.linkonce.s.*)
}
.rela.sdata :
{
*(.rela.sdata)
*(.rela.sdata.*)
*(.rela.gnu.linkonce.s.*)
}
.rel.sbss :
{
*(.rel.sbss)
*(.rel.sbss.*)
*(.rel.gnu.linkonce.sb.*)
}
.rela.sbss :
{
*(.rela.sbss)
*(.rela.sbss.*)
*(.rel.gnu.linkonce.sb.*)
}
.rel.bss :
{
*(.rel.bss)
*(.rel.bss.*)
*(.rel.gnu.linkonce.b.*)
}
.rela.bss :
{
*(.rela.bss)
*(.rela.bss.*)
*(.rela.gnu.linkonce.b.*)
}
.rel.stext : { *(.rel.stest) }
.rela.stext : { *(.rela.stest) }
.rel.etext : { *(.rel.etest) }
.rela.etext : { *(.rela.etest) }
.rel.sdata : { *(.rel.sdata) }
.rela.sdata : { *(.rela.sdata) }
.rel.edata : { *(.rel.edata) }
.rela.edata : { *(.rela.edata) }
.rel.eit_v : { *(.rel.eit_v) }
.rela.eit_v : { *(.rela.eit_v) }
.rel.ebss : { *(.rel.ebss) }
.rela.ebss : { *(.rela.ebss) }
.rel.srodata : { *(.rel.srodata) }
.rela.srodata : { *(.rela.srodata) }
.rel.erodata : { *(.rel.erodata) }
.rela.erodata : { *(.rela.erodata) }
.rel.got : { *(.rel.got) }
.rela.got : { *(.rela.got) }
.rel.ctors : { *(.rel.ctors) }
.rela.ctors : { *(.rela.ctors) }
.rel.dtors : { *(.rel.dtors) }
.rela.dtors : { *(.rela.dtors) }
.rel.init : { *(.rel.init) }
.rela.init : { *(.rela.init) }
.rel.fini : { *(.rel.fini) }
.rela.fini : { *(.rela.fini) }
.rel.plt : { *(.rel.plt) }
.rela.plt : { *(.rela.plt) }
/* Concatenate .page0 sections. Put them in the page0 memory bank
unless we are creating a relocatable file. */
.page0 :
{
*(.page0)
} > page0
/* Start of text section. */
.stext :
{
*(.stext)
} > text
.init :
{
*(.init)
} =0
.text :
{
/* Put startup code at beginning so that _start keeps same address. */
/* Startup code. */
KEEP (*(.install0)) /* Section should setup the stack pointer. */
KEEP (*(.install1)) /* Place holder for applications. */
KEEP (*(.install2)) /* Optional installation of data sections in RAM. */
KEEP (*(.install3)) /* Place holder for applications. */
KEEP (*(.install4)) /* Section that calls the main. */
*(.init)
*(.text)
*(.text.*)
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.gnu.linkonce.t.*)
*(.tramp)
*(.tramp.*)
/* Finish code. */
KEEP (*(.fini0)) /* Beginning of finish code (_exit symbol). */
KEEP (*(.fini1)) /* Place holder for applications. */
KEEP (*(.fini2)) /* C++ destructors. */
KEEP (*(.fini3)) /* Place holder for applications. */
KEEP (*(.fini4)) /* Runtime exit. */
_etext = .;
PROVIDE (etext = .);
. = ALIGN(2);
} > text =0xa7a7a7a7
.eh_frame :
{
KEEP (*(.eh_frame))
} > text
.gcc_except_table :
{
*(.gcc_except_table)
} > text
.rodata :
{
*(.rodata)
*(.rodata.*)
*(.gnu.linkonce.r*)
. = ALIGN(2);
} > text =0xffffffff
.rodata1 :
{
*(.rodata1)
. = ALIGN(2);
} > text =0xffffffff
/* Constructor and destructor tables are in ROM. */
.ctors :
{
PROVIDE (__CTOR_LIST__ = .);
KEEP (*(.ctors))
PROVIDE(__CTOR_END__ = .);
} > text
.dtors :
{
PROVIDE(__DTOR_LIST__ = .);
KEEP (*(.dtors))
PROVIDE(__DTOR_END__ = .);
} > text
.jcr :
{
KEEP (*(.jcr))
} > text
/* Start of the data section image in ROM. */
__data_image = .;
PROVIDE (__data_image = .);
/* All read-only sections that normally go in PROM must be above.
We construct the DATA image section in PROM at end of all these
read-only sections. The data image must be copied at init time.
Refer to GNU ld, Section 3.6.8.2 Output Section LMA. */
.data : AT (__data_image)
{
__data_section_start = .;
PROVIDE (__data_section_start = .);
*(.sdata)
*(.data)
*(.data.*)
*(.data1)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
_edata = .;
PROVIDE (edata = .);
. = ALIGN(2);
} > data =0xffffffff
__data_section_size = SIZEOF(.data);
PROVIDE (__data_section_size = SIZEOF(.data));
__data_image_end = __data_image + __data_section_size;
/* SCz: this does not work yet... This is supposed to force the loading
of _map_data.o (from libgcc.a) when the .data section is not empty.
By doing so, this should bring the code that copies the .data section
from ROM to RAM at init time.
___pre_comp_data_size = SIZEOF(.data);
__install_data_sections = ___pre_comp_data_size > 0 ?
__map_data_sections : 0;
*/
/* .install :
{
. = _data_image_end;
} > text */
/* Relocation for some bss and data sections. */
.bss :
{
__bss_start = .;
*(.softregs)
*(.sbss)
*(.scommon)
*(.dynbss)
*(.bss)
*(.bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
PROVIDE (_end = .);
} > data
__bss_size = SIZEOF(.bss);
PROVIDE (__bss_size = SIZEOF(.bss));
.eeprom :
{
*(.eeprom)
*(.eeprom.*)
} > eeprom
/* If the 'vectors_addr' symbol is defined, it indicates the start address
of interrupt vectors. This depends on the 68HC11 operating mode:
Addr
Single chip 0xffc0
Extended mode 0xffc0
Bootstrap 0x00c0
Test 0xbfc0
In general, the vectors address is 0xffc0. This can be overriden
with the '-defsym vectors_addr=0xbfc0' ld option.
Note: for the bootstrap mode, the interrupt vectors are at 0xbfc0 but
they are redirected to 0x00c0 by the internal PROM. Application's vectors
must also consist of jump instructions (see Motorola's manual). */
PROVIDE (_vectors_addr = DEFINED (vectors_addr) ? vectors_addr : 0xffc0);
.vectors DEFINED (vectors_addr) ? vectors_addr : 0xffc0 :
{
KEEP (*(.vectors))
}
/* 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) }
/* Treatment of DWARF debug section must be at end of the linker
script to avoid problems when there are undefined symbols. It's necessary
to avoid that the DWARF section is relocated before such undefined
symbols are found. */
/* 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) }
}