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2005-08-10 DJ Delorie <dj@redhat.com>

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* configure.in: Add m32c support.
        * configure: Regenerated
        * m32c: New directory, Renesas R8C/M16C/M32C support.
        * m32c/abort.S m32c/argvlen.S m32c/argv.S m32c/chdir.S,
        m32c/chmod.S m32c/close.S m32c/configure m32c/configure.in,
        m32c/crt0.S, m32c/crtn.S, m32c/exit.S, m32c/fstat.S,
        m32c/genscript, m32c/getpid.S, m32c/gettimeofday.S,
        m32c/heaptop.S, m32c/isatty.S, m32c/kill.S, m32c/link.S,
        m32c/lseek.S, m32c/m32csys.h, m32c/m32c.tmpl, m32c/Makefile.in,
        m32c/open.S, m32c/read.S, m32c/sbrk.c, m32c/stat.S, m32c/time.S,
        m32c/times.S, m32c/unlink.S, m32c/utime.S, m32c/write.S: New files
This commit is contained in:
Jeff Johnston
2005-08-10 20:29:33 +00:00
parent d154b707d0
commit a663cd89a7
35 changed files with 2843 additions and 7 deletions
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212
libgloss/m32c/m32c.tmpl Normal file
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/*
Copyright (c) 2005 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* Default linker script, for normal executables */
OUTPUT_FORMAT("elf32-m32c", "elf32-m32c",
"elf32-m32c")
OUTPUT_ARCH(m32c)
ENTRY(_start)
/* Do we need any of these for elf?
__DYNAMIC = 0; */
MEMORY {
RAM (w) : ORIGIN = RAMSTART, LENGTH = RAMSIZE
ROM (r) : ORIGIN = ROMSTART, LENGTH = ROMSIZE
VEC (r) : ORIGIN = VECSTART, LENGTH = 32
RESETVEC (r) : ORIGIN = RESETSTART, LENGTH = 4
}
SECTIONS
{
/* 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);
PROVIDE(__romdatastart = .); /* IF_ROCOPY */
} > ROM =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);
PROVIDE(__datastart = .); /* IF_ROCOPY */
*(.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 */
} > LOWROM
.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)
. = 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(.rodata) + 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));
.stack (RAMSTART + RAMSIZE - 2) :
{
PROVIDE (__stack = .);
*(.stack)
}
.vec : {
*(.vec)
} > VEC
.resetvec : {
*(.resetvec)
} > RESETVEC
/* 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) }
}