545 lines
16 KiB
C
545 lines
16 KiB
C
/* BFD library support routines for the Renesas / SuperH SH architecture.
|
|
Copyright (C) 1993-2014 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 SH_NEXT arch_info_struct + 0
|
|
#define SH2_NEXT arch_info_struct + 1
|
|
#define SH2E_NEXT arch_info_struct + 2
|
|
#define SH_DSP_NEXT arch_info_struct + 3
|
|
#define SH3_NEXT arch_info_struct + 4
|
|
#define SH3_NOMMU_NEXT arch_info_struct + 5
|
|
#define SH3_DSP_NEXT arch_info_struct + 6
|
|
#define SH3E_NEXT arch_info_struct + 7
|
|
#define SH4_NEXT arch_info_struct + 8
|
|
#define SH4A_NEXT arch_info_struct + 9
|
|
#define SH4AL_DSP_NEXT arch_info_struct + 10
|
|
#define SH4_NOFPU_NEXT arch_info_struct + 11
|
|
#define SH4_NOMMU_NOFPU_NEXT arch_info_struct + 12
|
|
#define SH4A_NOFPU_NEXT arch_info_struct + 13
|
|
#define SH2A_NEXT arch_info_struct + 14
|
|
#define SH2A_NOFPU_NEXT arch_info_struct + 15
|
|
#define SH2A_NOFPU_OR_SH4_NOMMU_NOFPU_NEXT arch_info_struct + 16
|
|
#define SH2A_NOFPU_OR_SH3_NOMMU_NEXT arch_info_struct + 17
|
|
#define SH2A_OR_SH4_NEXT arch_info_struct + 18
|
|
#define SH2A_OR_SH3E_NEXT arch_info_struct + 19
|
|
#define SH64_NEXT NULL
|
|
|
|
static const bfd_arch_info_type arch_info_struct[] =
|
|
{
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh2,
|
|
"sh", /* Architecture name. */
|
|
"sh2", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH2_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh2e,
|
|
"sh", /* Architecture name. */
|
|
"sh2e", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH2E_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh_dsp,
|
|
"sh", /* Architecture name. */
|
|
"sh-dsp", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH_DSP_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh3,
|
|
"sh", /* Architecture name. */
|
|
"sh3", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH3_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh3_nommu,
|
|
"sh", /* Architecture name. */
|
|
"sh3-nommu", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH3_NOMMU_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh3_dsp,
|
|
"sh", /* Architecture name. */
|
|
"sh3-dsp", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH3_DSP_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh3e,
|
|
"sh", /* Architecture name. */
|
|
"sh3e", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH3E_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh4,
|
|
"sh", /* Architecture name. */
|
|
"sh4", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH4_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh4a,
|
|
"sh", /* Architecture name. */
|
|
"sh4a", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH4A_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh4al_dsp,
|
|
"sh", /* Architecture name. */
|
|
"sh4al-dsp", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH4AL_DSP_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh4_nofpu,
|
|
"sh", /* Architecture name. */
|
|
"sh4-nofpu", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH4_NOFPU_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh4_nommu_nofpu,
|
|
"sh", /* Architecture name. */
|
|
"sh4-nommu-nofpu", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH4_NOMMU_NOFPU_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh4a_nofpu,
|
|
"sh", /* Architecture name. */
|
|
"sh4a-nofpu", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH4A_NOFPU_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh2a,
|
|
"sh", /* Architecture name. */
|
|
"sh2a", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH2A_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh2a_nofpu,
|
|
"sh", /* Architecture name. */
|
|
"sh2a-nofpu", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH2A_NOFPU_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh2a_nofpu_or_sh4_nommu_nofpu,
|
|
"sh", /* Architecture name. */
|
|
"sh2a-nofpu-or-sh4-nommu-nofpu", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH2A_NOFPU_OR_SH4_NOMMU_NOFPU_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh2a_nofpu_or_sh3_nommu,
|
|
"sh", /* Architecture name. . */
|
|
"sh2a-nofpu-or-sh3-nommu", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH2A_NOFPU_OR_SH3_NOMMU_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh2a_or_sh4,
|
|
"sh", /* Architecture name. */
|
|
"sh2a-or-sh4", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH2A_OR_SH4_NEXT
|
|
},
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh2a_or_sh3e,
|
|
"sh", /* Architecture name. */
|
|
"sh2a-or-sh3e", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH2A_OR_SH3E_NEXT
|
|
},
|
|
{
|
|
64, /* 64 bits in a word. */
|
|
64, /* 64 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh5,
|
|
"sh", /* Architecture name. */
|
|
"sh5", /* Machine name. */
|
|
1,
|
|
FALSE, /* Not the default. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH64_NEXT
|
|
},
|
|
};
|
|
|
|
const bfd_arch_info_type bfd_sh_arch =
|
|
{
|
|
32, /* 32 bits in a word. */
|
|
32, /* 32 bits in an address. */
|
|
8, /* 8 bits in a byte. */
|
|
bfd_arch_sh,
|
|
bfd_mach_sh,
|
|
"sh", /* Architecture name. */
|
|
"sh", /* Machine name. */
|
|
1,
|
|
TRUE, /* The default machine. */
|
|
bfd_default_compatible,
|
|
bfd_default_scan,
|
|
bfd_arch_default_fill,
|
|
SH_NEXT
|
|
};
|
|
|
|
|
|
/* 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++;
|
|
|
|
/* Machine not found. */
|
|
BFD_FAIL();
|
|
|
|
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++;
|
|
|
|
/* Machine not found. */
|
|
BFD_FAIL();
|
|
|
|
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;
|
|
}
|
|
|
|
|
|
/* Merge the architecture type of two BFD files, such that the
|
|
resultant architecture supports all the features required
|
|
by the two input BFDs.
|
|
If the input BFDs are multually incompatible - i.e. one uses
|
|
DSP while the other uses FPU - or there is no known architecture
|
|
that fits the requirements then an error is emitted. */
|
|
|
|
bfd_boolean
|
|
sh_merge_bfd_arch (bfd *ibfd, bfd *obfd)
|
|
{
|
|
unsigned int old_arch, new_arch, merged_arch;
|
|
|
|
if (! _bfd_generic_verify_endian_match (ibfd, obfd))
|
|
return FALSE;
|
|
|
|
old_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (obfd));
|
|
new_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (ibfd));
|
|
|
|
merged_arch = SH_MERGE_ARCH_SET (old_arch, new_arch);
|
|
|
|
if (!SH_VALID_CO_ARCH_SET (merged_arch))
|
|
{
|
|
(*_bfd_error_handler)
|
|
("%B: uses %s instructions while previous modules use %s instructions",
|
|
ibfd,
|
|
SH_ARCH_SET_HAS_DSP (new_arch) ? "dsp" : "floating point",
|
|
SH_ARCH_SET_HAS_DSP (new_arch) ? "floating point" : "dsp");
|
|
bfd_set_error (bfd_error_bad_value);
|
|
return FALSE;
|
|
}
|
|
else if (!SH_VALID_ARCH_SET (merged_arch))
|
|
{
|
|
(*_bfd_error_handler)
|
|
("internal error: merge of architecture '%s' with architecture '%s' produced unknown architecture\n",
|
|
bfd_printable_name (obfd),
|
|
bfd_printable_name (ibfd));
|
|
bfd_set_error (bfd_error_bad_value);
|
|
return FALSE;
|
|
}
|
|
|
|
bfd_default_set_arch_mach (obfd, bfd_arch_sh,
|
|
sh_get_bfd_mach_from_arch_set (merged_arch));
|
|
|
|
return TRUE;
|
|
}
|