mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-21 01:12:32 +08:00
fd67aa1129
Adds two new external authors to etc/update-copyright.py to cover bfd/ax_tls.m4, and adds gprofng to dirs handled automatically, then updates copyright messages as follows: 1) Update cgen/utils.scm emitted copyrights. 2) Run "etc/update-copyright.py --this-year" with an extra external author I haven't committed, 'Kalray SA.', to cover gas testsuite files (which should have their copyright message removed). 3) Build with --enable-maintainer-mode --enable-cgen-maint=yes. 4) Check out */po/*.pot which we don't update frequently.
194 lines
7.4 KiB
C
194 lines
7.4 KiB
C
/* BFD library support routines for the Renesas / SuperH SH architecture.
|
|
Copyright (C) 1993-2024 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 "../opcodes/sh-opc.h"
|
|
|
|
|
|
#define N(NUMBER, PRINT, DEFAULT, NEXT) \
|
|
{ \
|
|
32, /* Bits in a word. */ \
|
|
32, /* Bits in an address. */ \
|
|
8, /* Bits in a byte. */ \
|
|
bfd_arch_sh, \
|
|
NUMBER, \
|
|
"sh", \
|
|
PRINT, \
|
|
1, /* Section alignment power. */ \
|
|
DEFAULT, \
|
|
bfd_default_compatible, \
|
|
bfd_default_scan, \
|
|
bfd_arch_default_fill, \
|
|
NEXT, \
|
|
0 /* Maximum offset of a reloc from the start of an insn. */ \
|
|
}
|
|
|
|
static const bfd_arch_info_type arch_info_struct[] =
|
|
{
|
|
N (bfd_mach_sh2, "sh2", false, arch_info_struct + 1),
|
|
N (bfd_mach_sh2e, "sh2e", false, arch_info_struct + 2),
|
|
N (bfd_mach_sh_dsp, "sh-dsp", false, arch_info_struct + 3),
|
|
N (bfd_mach_sh3, "sh3", false, arch_info_struct + 4),
|
|
N (bfd_mach_sh3_nommu, "sh3-nommu", false, arch_info_struct + 5),
|
|
N (bfd_mach_sh3_dsp, "sh3-dsp", false, arch_info_struct + 6),
|
|
N (bfd_mach_sh3e, "sh3e", false, arch_info_struct + 7),
|
|
N (bfd_mach_sh4, "sh4", false, arch_info_struct + 8),
|
|
N (bfd_mach_sh4a, "sh4a", false, arch_info_struct + 9),
|
|
N (bfd_mach_sh4al_dsp, "sh4al-dsp", false, arch_info_struct + 10),
|
|
N (bfd_mach_sh4_nofpu, "sh4-nofpu", false, arch_info_struct + 11),
|
|
N (bfd_mach_sh4_nommu_nofpu, "sh4-nommu-nofpu", false, arch_info_struct + 12),
|
|
N (bfd_mach_sh4a_nofpu, "sh4a-nofpu", false, arch_info_struct + 13),
|
|
N (bfd_mach_sh2a, "sh2a", false, arch_info_struct + 14),
|
|
N (bfd_mach_sh2a_nofpu, "sh2a-nofpu", false, arch_info_struct + 15),
|
|
N (bfd_mach_sh2a_nofpu_or_sh4_nommu_nofpu, "sh2a-nofpu-or-sh4-nommu-nofpu", false, arch_info_struct + 16),
|
|
N (bfd_mach_sh2a_nofpu_or_sh3_nommu, "sh2a-nofpu-or-sh3-nommu", false, arch_info_struct + 17),
|
|
N (bfd_mach_sh2a_or_sh4, "sh2a-or-sh4", false, arch_info_struct + 18),
|
|
N (bfd_mach_sh2a_or_sh3e, "sh2a-or-sh3e", false, NULL)
|
|
};
|
|
|
|
const bfd_arch_info_type bfd_sh_arch =
|
|
N (bfd_mach_sh, "sh", true, arch_info_struct + 0);
|
|
|
|
/* This table defines the mappings from the BFD internal numbering
|
|
system to the opcodes internal flags system.
|
|
It is used by the functions defined below.
|
|
The prototypes for these SH specific functions are found in
|
|
sh-opc.h . */
|
|
|
|
static struct { unsigned long bfd_mach, arch, arch_up; } bfd_to_arch_table[] =
|
|
{
|
|
{ bfd_mach_sh, arch_sh1, arch_sh_up },
|
|
{ bfd_mach_sh2, arch_sh2, arch_sh2_up },
|
|
{ bfd_mach_sh2e, arch_sh2e, arch_sh2e_up },
|
|
{ bfd_mach_sh_dsp, arch_sh_dsp, arch_sh_dsp_up },
|
|
{ bfd_mach_sh2a, arch_sh2a, arch_sh2a_up },
|
|
{ bfd_mach_sh2a_nofpu, arch_sh2a_nofpu, arch_sh2a_nofpu_up },
|
|
|
|
{ bfd_mach_sh2a_nofpu_or_sh4_nommu_nofpu, arch_sh2a_nofpu_or_sh4_nommu_nofpu, arch_sh2a_nofpu_or_sh4_nommu_nofpu_up },
|
|
{ bfd_mach_sh2a_nofpu_or_sh3_nommu, arch_sh2a_nofpu_or_sh3_nommu, arch_sh2a_nofpu_or_sh3_nommu_up },
|
|
{ bfd_mach_sh2a_or_sh4, arch_sh2a_or_sh4, arch_sh2a_or_sh4_up },
|
|
{ bfd_mach_sh2a_or_sh3e, arch_sh2a_or_sh3e, arch_sh2a_or_sh3e_up },
|
|
|
|
{ bfd_mach_sh3, arch_sh3, arch_sh3_up },
|
|
{ bfd_mach_sh3_nommu, arch_sh3_nommu, arch_sh3_nommu_up },
|
|
{ bfd_mach_sh3_dsp, arch_sh3_dsp, arch_sh3_dsp_up },
|
|
{ bfd_mach_sh3e, arch_sh3e, arch_sh3e_up },
|
|
{ bfd_mach_sh4, arch_sh4, arch_sh4_up },
|
|
{ bfd_mach_sh4a, arch_sh4a, arch_sh4a_up },
|
|
{ bfd_mach_sh4al_dsp, arch_sh4al_dsp, arch_sh4al_dsp_up },
|
|
{ bfd_mach_sh4_nofpu, arch_sh4_nofpu, arch_sh4_nofpu_up },
|
|
{ bfd_mach_sh4_nommu_nofpu, arch_sh4_nommu_nofpu, arch_sh4_nommu_nofpu_up },
|
|
{ bfd_mach_sh4a_nofpu, arch_sh4a_nofpu, arch_sh4a_nofpu_up },
|
|
{ 0, 0, 0 } /* Terminator. */
|
|
};
|
|
|
|
|
|
/* Convert a BFD mach number into the right opcodes arch flags
|
|
using the table above. */
|
|
|
|
unsigned int
|
|
sh_get_arch_from_bfd_mach (unsigned long mach)
|
|
{
|
|
int i = 0;
|
|
|
|
while (bfd_to_arch_table[i].bfd_mach != 0)
|
|
if (bfd_to_arch_table[i].bfd_mach == mach)
|
|
return bfd_to_arch_table[i].arch;
|
|
else
|
|
i++;
|
|
|
|
return SH_ARCH_UNKNOWN_ARCH;
|
|
}
|
|
|
|
|
|
/* Convert a BFD mach number into a set of opcodes arch flags
|
|
describing all the compatible architectures (i.e. arch_up)
|
|
using the table above. */
|
|
|
|
unsigned int
|
|
sh_get_arch_up_from_bfd_mach (unsigned long mach)
|
|
{
|
|
int i = 0;
|
|
|
|
while (bfd_to_arch_table[i].bfd_mach != 0)
|
|
if (bfd_to_arch_table[i].bfd_mach == mach)
|
|
return bfd_to_arch_table[i].arch_up;
|
|
else
|
|
i++;
|
|
|
|
return SH_ARCH_UNKNOWN_ARCH;
|
|
}
|
|
|
|
|
|
/* Convert an arbitary arch_set - not necessarily corresponding
|
|
directly to anything in the table above - to the most generic
|
|
architecture which supports all the required features, and
|
|
return the corresponding BFD mach. */
|
|
|
|
unsigned long
|
|
sh_get_bfd_mach_from_arch_set (unsigned int arch_set)
|
|
{
|
|
unsigned long result = 0;
|
|
unsigned int best = ~arch_set;
|
|
unsigned int co_mask = ~0;
|
|
int i = 0;
|
|
|
|
/* If arch_set permits variants with no coprocessor then do not allow
|
|
the other irrelevant co-processor bits to influence the choice:
|
|
e.g. if dsp is disallowed by arch_set, then the algorithm would
|
|
prefer fpu variants over nofpu variants because they also disallow
|
|
dsp - even though the nofpu would be the most correct choice.
|
|
This assumes that EVERY fpu/dsp variant has a no-coprocessor
|
|
counter-part, or their non-fpu/dsp instructions do not have the
|
|
no co-processor bit set. */
|
|
if (arch_set & arch_sh_no_co)
|
|
co_mask = ~(arch_sh_sp_fpu | arch_sh_dp_fpu | arch_sh_has_dsp);
|
|
|
|
while (bfd_to_arch_table[i].bfd_mach != 0)
|
|
{
|
|
unsigned int try = bfd_to_arch_table[i].arch_up & co_mask;
|
|
|
|
/* Conceptually: Find the architecture with the least number
|
|
of extra features or, if they have the same number, then
|
|
the greatest number of required features. Disregard
|
|
architectures where the required features alone do
|
|
not describe a valid architecture. */
|
|
if (((try & ~arch_set) < (best & ~arch_set)
|
|
|| ((try & ~arch_set) == (best & ~arch_set)
|
|
&& (~try & arch_set) < (~best & arch_set)))
|
|
&& SH_MERGE_ARCH_SET_VALID (try, arch_set))
|
|
{
|
|
result = bfd_to_arch_table[i].bfd_mach;
|
|
best = try;
|
|
}
|
|
|
|
i++;
|
|
}
|
|
|
|
/* This might happen if a new variant is added to sh-opc.h
|
|
but no corresponding entry is added to the table above. */
|
|
BFD_ASSERT (result != 0);
|
|
|
|
return result;
|
|
}
|