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m120an.ld
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/*======================================================================/
/ @file
/ @brief R8C(Tiny)/M110AN, R8C(Tiny)/M120AN Link Loader Script @n
/ Flash-ROM and RAM extends version @n
/ Flash-ROM: 2048(0xF800) ---> 32768(start: 0x8000) bytes @n
/ RAM: 256(0x0400) ---> 1280(start: 0x0300) bytes
/ @author 平松邦仁 ([email protected])
/ @copyright Copyright (C) 2015, 2017 Kunihito Hiramatsu @n
/ Released under the MIT license @n
/ https://github.com/hirakuni45/RX/blob/master/LICENSE
/======================================================================*/
/* Default linker script, for normal executables */
OUTPUT_FORMAT("elf32-m32c", "elf32-m32c",
"elf32-m32c")
OUTPUT_ARCH(m32c)
ENTRY(_start)
INPUT(-lm32cgloss)
/* Do we need any of these for elf?
__DYNAMIC = 0; */
MEMORY {
RAM (w) : ORIGIN = 0x00300, LENGTH = 0x00400
ROM (r) : ORIGIN = 0x08000, LENGTH = 0x07ED8
EXT (r) : ORIGIN = 0x10000, LENGTH = 0x08000
VVEC (r) : ORIGIN = 0x0FED8, LENGTH = 256
FVEC (r) : ORIGIN = 0x0FFD8, LENGTH = 40
}
SECTIONS
{
_usp_init = 0x07C0;
_isp_init = 0x0800;
/* There are three cases we care about: First, RW data that must be
in the low 64k. This will always be copied from ROM. Second, RO
data that must be in the low 64k. This may be copied from ROM if
the ROM is above 64k. Third, anything that does not need to be
in the first 64k. Chips normally only have two memory regions;
low ram and either high or low rom. We map the low rom needs
into one of the actual regions. */
/* .text goes first so the rom image of ram data will follow it. */
.text :
{
*(.text .stub .text.* .gnu.linkonce.t.*)
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);
} > ROM =0
.exttext :
{
*(.exttext .stub .exttext.* .gnu.linkonce.t.*)
KEEP (*(.exttext.*personality*))
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.interp .hash .dynsym .dynstr .gnu.version*)
} > EXT =0
/* rodata will either be part of data, or will be in low rom. So we
might be spanning it, or we might not. This lets us include it
in our calculations when appropriate. */
.rodata : {
. = ALIGN(2);
*(.plt)
KEEP (*(.init))
KEEP (*(.fini))
*(.rodata .rodata.* .gnu.linkonce.r.*)
*(.rodata1)
*(.eh_frame_hdr)
KEEP (*(.eh_frame))
KEEP (*(.gcc_except_table)) *(.gcc_except_table.*)
. = ALIGN(2);
PROVIDE(__romdatastart = .); /* IF_ROROM */
} > ROM
PROVIDE( __datainternal = ABSOLUTE(LOADADDR(.data)));
.data : {
. = ALIGN(32 / 8);
PROVIDE (__datastart = .); /* IF_ROROM */
PROVIDE (__preinit_array_start = .);
KEEP (*(.preinit_array))
PROVIDE (__preinit_array_end = .);
PROVIDE (__init_array_start = .);
KEEP (*(.init_array))
PROVIDE (__init_array_end = .);
PROVIDE (__fini_array_start = .);
KEEP (*(.fini_array))
PROVIDE (__fini_array_end = .);
/* 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))
KEEP (*(.jcr))
*(.data.rel.ro.local) *(.data.rel.ro*)
*(.dynamic)
*(.data .data.* .gnu.linkonce.d.*)
KEEP (*(.gnu.linkonce.d.*personality*))
SORT(CONSTRUCTORS)
*(.data1)
*(.got.plt) *(.got)
PROVIDE (__var_vect_start = .);
*(.var_vects)
. = ALIGN(2);
_edata = .;
PROVIDE (edata = .);
PROVIDE (__dataend = .);
} > RAM AT>ROM
/* Note that __romdatacopysize may be ZERO for the simulator, which
knows how to intialize RAM directly. It should ONLY be used for
copying data from ROM to RAM; if you need to know the size of the
data section, subtract the end symbol from the start symbol. */
/* Note that crt0 assumes this is even; all the start/stop symbols
are also assumed word-aligned. */
PROVIDE (__romdatacopysize =SIZEOF(.data));
.bss : {
. = ALIGN(2);
PROVIDE (__bssstart = .);
*(.dynbss)
*(.bss .bss.* .gnu.linkonce.b.*)
*(COMMON)
. = ALIGN(2);
PROVIDE (__bssend = .);
_end = .;
PROVIDE (end = .);
} > RAM
PROVIDE (__bsssize = SIZEOF(.bss));
.vvec : {
KEEP( *(.vvec) )
} > VVEC
.fvec : {
KEEP( *(.fvec) )
} > FVEC
/* The rest are all not normally part of the runtime image. */
/* 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_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) }
/DISCARD/ : { *(.note.GNU-stack) }
}