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R5F51105.ld
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/* -*- tab-width : 4 -*- */
/*! @file
@brief RX110 R5F51105 リンカー・スクリプト @n
ROM: 128K @n
RAM: 16K @n
EEPROM: 0K
@author 平松邦仁 ([email protected])
@copyright Copyright (C) 2024 Kunihito Hiramatsu @n
Released under the MIT license @n
https://github.com/hirakuni45/RX/blob/master/LICENSE
*/
/* Default linker script, for normal executables */
OUTPUT_ARCH(rx)
ENTRY(_start)
/* Do we need any of these for elf?
__DYNAMIC = 0; */
/* This memory layout corresponds to the smallest predicted RX1105 chip. */
MEMORY {
RAM (w) : ORIGIN = 0x00000000, LENGTH = 0x00003C00 /* 16K - stack_size (0x400) */
USTACK (w) : ORIGIN = 0x00003F00, LENGTH = 4 /* ustack 768 bytes */
ISTACK (w) : ORIGIN = 0x00004000, LENGTH = 4 /* istack 256 bytes */
ROM (w) : ORIGIN = 0xFFFE0000, LENGTH = 0x0001FFD0 /* 128K */
}
SECTIONS
{
.text :
{
PROVIDE (_start = .);
*(.text P .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(4);
KEEP (*(.init))
KEEP (*(.fini))
} > ROM
.rodata : {
. = ALIGN(4);
*(.plt)
*(.rodata C C_2 C_1 W W_2 W_1 .rodata.* .gnu.linkonce.r.*)
*(.rodata1)
*(.eh_frame_hdr)
KEEP (*(.eh_frame))
KEEP (*(.gcc_except_table)) *(.gcc_except_table.*)
. = ALIGN(4);
PROVIDE(__romdatastart = .);
} > ROM
.data : {
. = ALIGN(4);
PROVIDE (__datastart = .); /* IF_ROROM */
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 = .);
LONG(0); /* Sentinel. */
/* 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 D .data.* .gnu.linkonce.d.*)
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(4);
*(.sdata .sdata.* .gnu.linkonce.s.* D_2 D_1)
. = ALIGN(4);
_edata = .;
PROVIDE (edata = .);
PROVIDE (__dataend = .);
} > RAM AT> ROM
PROVIDE (__mainramend = ORIGIN(RAM) + LENGTH(RAM));
/* 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 a multiple of four; all the
start/stop symbols are also assumed long-aligned. */
PROVIDE (__romdatacopysize = SIZEOF(.data));
.bss : {
. = ALIGN(4);
PROVIDE (__bssstart = .);
*(.dynbss)
*(.sbss .sbss.*)
*(.bss B B_2 B_1 .bss.* .gnu.linkonce.b.*)
. = ALIGN(4);
*(COMMON)
. = ALIGN(4);
PROVIDE (__bssend = .);
_end = .;
PROVIDE (end = .);
} > RAM
PROVIDE (__bsssize = SIZEOF(.bss) / 4);
.istack (ORIGIN (ISTACK)) :
{
PROVIDE (__istack = .);
*(.istack)
}
.ustack (ORIGIN (USTACK)) :
{
PROVIDE (__ustack = .);
*(.ustack)
}
/* Providing one of these symbols in your code is sufficient to have
it linked in to the fixed vector table. */
PROVIDE (__rx_priviledged_exception_handler = 0x00000000);
PROVIDE (__rx_access_exception_handler = 0x00000000);
PROVIDE (__rx_undefined_exception_handler = 0x00000000);
PROVIDE (__rx_floating_exception_handler = 0x00000000);
PROVIDE (__rx_nonmaskable_exception_handler = 0x00000000);
.vectors (0xFFFFFFD0) :
{
PROVIDE (__vectors = .);
LONG (__rx_priviledged_exception_handler);
LONG (__rx_access_exception_handler);
LONG (0);
LONG (__rx_undefined_exception_handler);
LONG (0);
LONG (__rx_floating_exception_handler);
LONG (0);
LONG (0);
LONG (0);
LONG (0);
LONG (__rx_nonmaskable_exception_handler);
LONG (_start);
}
/* 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) }
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.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 */
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.line 0 : { *(.line) }
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/* DWARF 2 */
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/* SGI/MIPS DWARF 2 extensions */
.debug_weaknames 0 : { *(.debug_weaknames) }
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/DISCARD/ : { *(.note.GNU-stack) }
}