-/* BFD library support routines for the Hitachi-SH architecture.
- Copyright (C) 1993 Free Software Foundation, Inc.
+/* BFD library support routines for the Renesas / SuperH SH architecture.
+ Copyright 1993, 1994, 1997, 1998, 2000, 2001, 2002, 2003, 2004
+ Free Software Foundation, Inc.
Hacked by Steve Chamberlain of Cygnus Support.
-This file is part of BFD, the Binary File Descriptor library.
+ 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 2 of the License, or
-(at your option) any later version.
+ 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 2 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.
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.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 SH64_NEXT NULL
-static boolean
-scan_mach (info, string)
- const struct bfd_arch_info *info;
- const char *string;
-{
- if (strcasecmp (info->printable_name, string) == 0)
- return true;
- return false;
-}
-
-
-#if 0
-/* This routine is provided two arch_infos and returns whether
- they'd be compatible */
-
-static const bfd_arch_info_type *
-compatible (a,b)
- const bfd_arch_info_type *a;
- const bfd_arch_info_type *b;
-{
- if (a->arch != b->arch || a->mach != b->mach)
- return NULL;
- return a;
-}
-#endif
-
-#define SH_NEXT &arch_info_struct[0]
-#define SH3_NEXT &arch_info_struct[1]
-#define SH3E_NEXT NULL
-
-static const bfd_arch_info_type arch_info_struct[] =
+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", /* arch_name */
+ "sh2", /* printable name */
+ 1,
+ FALSE, /* not the default */
+ bfd_default_compatible,
+ bfd_default_scan,
+ 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", /* arch_name */
+ "sh2e", /* printable name */
+ 1,
+ FALSE, /* not the default */
+ bfd_default_compatible,
+ bfd_default_scan,
+ 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", /* arch_name */
+ "sh-dsp", /* printable name */
+ 1,
+ FALSE, /* not the default */
+ bfd_default_compatible,
+ bfd_default_scan,
+ SH_DSP_NEXT
+ },
{
32, /* 32 bits in a word */
32, /* 32 bits in an address */
"sh", /* arch_name */
"sh3", /* printable name */
1,
- false, /* not the default */
+ FALSE, /* not the default */
bfd_default_compatible,
- scan_mach,
+ bfd_default_scan,
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", /* arch_name */
+ "sh3-nommu", /* printable name */
+ 1,
+ FALSE, /* not the default */
+ bfd_default_compatible,
+ bfd_default_scan,
+ 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", /* arch_name */
+ "sh3-dsp", /* printable name */
+ 1,
+ FALSE, /* not the default */
+ bfd_default_compatible,
+ bfd_default_scan,
+ SH3_DSP_NEXT
+ },
{
32, /* 32 bits in a word */
32, /* 32 bits in an address */
"sh", /* arch_name */
"sh3e", /* printable name */
1,
- false, /* not the default */
+ FALSE, /* not the default */
bfd_default_compatible,
- scan_mach,
+ bfd_default_scan,
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", /* arch_name */
+ "sh4", /* printable name */
+ 1,
+ FALSE, /* not the default */
+ bfd_default_compatible,
+ bfd_default_scan,
+ 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", /* arch_name */
+ "sh4a", /* printable name */
+ 1,
+ FALSE, /* not the default */
+ bfd_default_compatible,
+ bfd_default_scan,
+ 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", /* arch_name */
+ "sh4al-dsp", /* printable name */
+ 1,
+ FALSE, /* not the default */
+ bfd_default_compatible,
+ bfd_default_scan,
+ 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", /* arch_name */
+ "sh4-nofpu", /* printable name */
+ 1,
+ FALSE, /* not the default */
+ bfd_default_compatible,
+ bfd_default_scan,
+ 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", /* arch_name */
+ "sh4-nommu-nofpu", /* printable name */
+ 1,
+ FALSE, /* not the default */
+ bfd_default_compatible,
+ bfd_default_scan,
+ 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", /* arch_name */
+ "sh4a-nofpu", /* printable name */
+ 1,
+ FALSE, /* not the default */
+ bfd_default_compatible,
+ bfd_default_scan,
+ 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", /* Arch_name. */
+ "sh2a", /* Printable name. */
+ 1,
+ FALSE, /* Not the default. */
+ bfd_default_compatible,
+ bfd_default_scan,
+ 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", /* Arch_name. */
+ "sh2a-nofpu", /* Printable name. */
+ 1,
+ FALSE, /* Not the default. */
+ bfd_default_compatible,
+ bfd_default_scan,
+ SH2A_NOFPU_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", /* arch_name */
+ "sh5", /* printable name */
+ 1,
+ FALSE, /* not the default */
+ bfd_default_compatible,
+ bfd_default_scan,
+ SH64_NEXT
+ },
};
const bfd_arch_info_type bfd_sh_arch =
"sh", /* arch_name */
"sh", /* printable name */
1,
- true, /* the default machine */
+ TRUE, /* the default machine */
bfd_default_compatible,
- scan_mach,
+ bfd_default_scan,
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_sh1_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_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_nofp_up },
+ { bfd_mach_sh4_nommu_nofpu, arch_sh4_nommu_nofpu, arch_sh4_nommu_nofpu_up },
+ { bfd_mach_sh4a_nofpu, arch_sh4a_nofpu, arch_sh4a_nofp_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++;
+
+ /* mach 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++;
+
+ /* mach 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;
+}
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