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/* BFD library support routines for the Renesas H8/300 architecture.
Copyright (C) 1990-2022 Free Software Foundation, Inc.
Hacked by Steve Chamberlain of Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
#include "sysdep.h"
#include "bfd.h"
#include "libbfd.h"
#include "cpu-h8300.h"
static bool
h8300_scan (const struct bfd_arch_info *info, const char *string)
{
if (*string != 'h' && *string != 'H')
return false;
string++;
if (*string != '8')
return false;
string++;
if (*string == '/')
string++;
if (*string != '3')
return false;
string++;
if (*string != '0')
return false;
string++;
if (*string != '0')
return false;
string++;
if (*string == '-')
string++;
/* In ELF linker scripts, we typically express the architecture/machine
as architecture:machine.
So if we've matched so far and encounter a colon, try to match the
string following the colon. */
if (*string == ':')
{
string++;
return h8300_scan (info, string);
}
if (*string == 'h' || *string == 'H')
{
string++;
if (*string == 'n' || *string == 'N')
return (info->mach == bfd_mach_h8300hn);
return (info->mach == bfd_mach_h8300h);
}
else if (*string == 's' || *string == 'S')
{
string++;
if (*string == 'n' || *string == 'N')
return (info->mach == bfd_mach_h8300sn);
if (*string == 'x' || *string == 'X')
{
string++;
if (*string == 'n' || *string == 'N')
return (info->mach == bfd_mach_h8300sxn);
return (info->mach == bfd_mach_h8300sx);
}
return (info->mach == bfd_mach_h8300s);
}
else
return info->mach == bfd_mach_h8300;
}
/* This routine is provided two arch_infos and works out the machine
which would be compatible with both and returns a pointer to its
info structure. */
static const bfd_arch_info_type *
compatible (const bfd_arch_info_type *in, const bfd_arch_info_type *out)
{
if (in->arch != out->arch)
return 0;
if (in->mach == bfd_mach_h8300sx && out->mach == bfd_mach_h8300s)
return in;
if (in->mach == bfd_mach_h8300s && out->mach == bfd_mach_h8300sx)
return out;
if (in->mach == bfd_mach_h8300sxn && out->mach == bfd_mach_h8300sn)
return in;
if (in->mach == bfd_mach_h8300sn && out->mach == bfd_mach_h8300sxn)
return out;
/* It's really not a good idea to mix and match modes. */
if (in->mach != out->mach)
return 0;
else
return in;
}
#define N(word, addr, number, name, print, default, next) \
{ word, addr, 8, bfd_arch_h8300, number, name, print, 1, default, \
compatible, h8300_scan, bfd_arch_default_fill, next, 0 }
static const bfd_arch_info_type h8300sxn_info_struct =
N (32, 16, bfd_mach_h8300sxn, "h8300sxn", "h8300sxn", false, NULL);
static const bfd_arch_info_type h8300sx_info_struct =
N (32, 32, bfd_mach_h8300sx, "h8300sx", "h8300sx", false, &h8300sxn_info_struct);
static const bfd_arch_info_type h8300sn_info_struct =
N (32, 16, bfd_mach_h8300sn, "h8300sn", "h8300sn", false, &h8300sx_info_struct);
static const bfd_arch_info_type h8300hn_info_struct =
N (32, 16, bfd_mach_h8300hn, "h8300hn", "h8300hn", false, &h8300sn_info_struct);
static const bfd_arch_info_type h8300s_info_struct =
N (32, 32, bfd_mach_h8300s, "h8300s", "h8300s", false, & h8300hn_info_struct);
static const bfd_arch_info_type h8300h_info_struct =
N (32, 32, bfd_mach_h8300h, "h8300h", "h8300h", false, &h8300s_info_struct);
const bfd_arch_info_type bfd_h8300_arch =
N (16, 16, bfd_mach_h8300, "h8300", "h8300", true, &h8300h_info_struct);
/* Pad the given address to 32 bits, converting 16-bit and 24-bit
addresses into the values they would have had on a h8s target. */
bfd_vma
bfd_h8300_pad_address (bfd *abfd, bfd_vma address)
{
/* Cope with bfd_vma's larger than 32 bits. */
address &= 0xffffffffu;
switch (bfd_get_mach (abfd))
{
case bfd_mach_h8300:
case bfd_mach_h8300hn:
case bfd_mach_h8300sn:
case bfd_mach_h8300sxn:
/* Sign extend a 16-bit address. */
if (address >= 0x8000)
return address | 0xffff0000u;
return address;
case bfd_mach_h8300h:
/* Sign extend a 24-bit address. */
if (address >= 0x800000)
return address | 0xff000000u;
return address;
case bfd_mach_h8300s:
case bfd_mach_h8300sx:
return address;
default:
abort ();
}
}
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