FT32 initial support

FT32 is a new 32-bit RISC core developed by FTDI for embedded applications.

	* configure.ac: Add FT32 support.
	* configure: Regenerate.
bfd/
	* Makefile.am: Add FT32 files.
	* archures.c (enum bfd_architecture): Add bfd_arch_ft32.
	(bfd_mach_ft32): Define.
	(bfd_ft32_arch): Declare.
	(bfd_archures_list): Add bfd_ft32_arch.
	* config.bfd: Handle FT32.
	* configure.ac: Likewise.
	* cpu-ft32.c: New file.
	* elf32-ft32.c: New file.
	* reloc.c (BFD_RELOC_FT32_10, BFD_RELOC_FT32_20, BFD_RELOC_FT32_17,
	BFD_RELOC_FT32_18): Define.
	* targets.c (_bfd_target_vector): Add ft32_elf32_vec.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* po/SRC-POTFILES.in: Regenerate.
binutils/
	* readelf.c: Add FT32 support.
gas/
	* Makefile.am: Add FT32 files.
	* config/tc-ft32.c: New file.
	* config/tc-ft32.h: New file.
	* configure.tgt: Add FT32 support.
	* Makefile.in: Regenerate.
	* po/POTFILES.in: Regenerate.
gas/testsuite/
	* gas/ft32/ft32.exp: New file.
	* gas/ft32/insn.d: New file.
	* gas/ft32/insn.s: New file.
include/
	* dis-asm.h (print_insn_ft32): Declare.
include/elf/
	* common.h (EM_FT32): Define.
	* ft32.h: New file.
include/opcode/
	* ft32.h: New file.
ld/
	* Makefile.am: Add FT32 files.
	* configure.tgt: Handle FT32 target.
	* emulparams/elf32ft32.sh: New file.
	* scripttempl/ft32.sc: New file.
	* Makefile.in: Regenerate.
opcodes/
	* Makefile.am: Add FT32 files.
	* configure.ac: Handle FT32.
	* disassemble.c (disassembler): Call print_insn_ft32.
	* ft32-dis.c: New file.
	* ft32-opc.c: New file.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* po/POTFILES.in: Regenerate.

1 files changed, 177 insertions, 0 deletions

diff --git a/opcodes/ft32-dis.c b/opcodes/ft32-dis.c
new file mode 100644
index 0000000..877a7ee
--- /dev/null
+++ b/opcodes/ft32-dis.c
@@ -0,0 +1,177 @@
+/* Disassemble ft32 instructions.
+   Copyright (C) 2013-2015 Free Software Foundation, Inc.
+   Contributed by FTDI (support@ftdichip.com)
+
+   This file is part of the GNU opcodes library.
+
+   This library 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, or (at your option)
+   any later version.
+
+   It 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 <stdio.h>
+#define STATIC_TABLE
+#define DEFINE_TABLE
+
+#include "opcode/ft32.h"
+#include "dis-asm.h"
+
+extern const ft32_opc_info_t ft32_opc_info[128];
+
+static fprintf_ftype fpr;
+static void *stream;
+
+int
+print_insn_ft32 (bfd_vma addr, struct disassemble_info *info)
+{
+  int status;
+  stream = info->stream;
+  bfd_byte buffer[4];
+  unsigned int iword;
+  const ft32_opc_info_t *oo;
+
+  fpr = info->fprintf_func;
+
+  if ((status = info->read_memory_func (addr, buffer, 4, info)))
+    goto fail;
+
+  iword = bfd_getl32 (buffer);
+
+  for (oo = ft32_opc_info; oo->name; oo++)
+    if ((iword & oo->mask) == oo->bits)
+      break;
+
+  if (oo->name)
+    {
+      int f = oo->fields;
+      int imm;
+
+      fpr (stream, "%08x %s", iword, oo->name);
+      if (oo->dw)
+        {
+          fpr (stream, ".%c ", "bsl"[(iword >> FT32_FLD_DW_BIT) & 3]);
+        }
+      else
+        {
+          fpr (stream, " ");
+        }
+
+      while (f)
+        {
+          int lobit = f & -f;
+          if (f & lobit)
+            {
+              switch (lobit)
+              {
+              case  FT32_FLD_CBCRCV:
+                // imm is {CB, CV}
+                imm = ((iword >> FT32_FLD_CB_BIT) & ((1 << FT32_FLD_CB_SIZ) - 1)) << 4;
+                imm |= ((iword >> FT32_FLD_CV_BIT) & ((1 << FT32_FLD_CV_SIZ) - 1));
+                switch (imm)
+                {
+                case 0x00: fpr(stream, "nz");  break;
+                case 0x01: fpr(stream, "z");   break;
+                case 0x10: fpr(stream, "ae");  break;
+                case 0x11: fpr(stream, "b");   break;
+                case 0x20: fpr(stream, "no");  break;
+                case 0x21: fpr(stream, "o");   break;
+                case 0x30: fpr(stream, "ns");  break;
+                case 0x31: fpr(stream, "s");   break;
+                case 0x40: fpr(stream, "lt");  break;
+                case 0x41: fpr(stream, "gte"); break;
+                case 0x50: fpr(stream, "lte"); break;
+                case 0x51: fpr(stream, "gt");  break;
+                case 0x60: fpr(stream, "be");  break;
+                case 0x61: fpr(stream, "a");   break;
+                default:   fpr(stream, "%d,$r30,%d", (imm >> 4), (imm & 1)); break;
+                }
+                break;
+              case  FT32_FLD_CB:
+                imm = (iword >> FT32_FLD_CB_BIT) & ((1 << FT32_FLD_CB_SIZ) - 1);
+                fpr(stream, "%d", imm);
+                break;
+              case  FT32_FLD_R_D:
+                fpr(stream, "$r%d", (iword >> FT32_FLD_R_D_BIT) & 0x1f);
+                break;
+              case  FT32_FLD_CR:
+                imm = (iword >> FT32_FLD_CR_BIT) & ((1 << FT32_FLD_CR_SIZ) - 1);
+                fpr(stream, "$r%d", 28 + imm);
+                break;
+              case  FT32_FLD_CV:
+                imm = (iword >> FT32_FLD_CV_BIT) & ((1 << FT32_FLD_CV_SIZ) - 1);
+                fpr(stream, "%d", imm);
+                break;
+              case  FT32_FLD_R_1:
+                fpr(stream, "$r%d", (iword >> FT32_FLD_R_1_BIT) & 0x1f);
+                break;
+              case  FT32_FLD_RIMM:
+                imm = (iword >> FT32_FLD_RIMM_BIT) & ((1 << FT32_FLD_RIMM_SIZ) - 1);
+                if (imm & 0x400)
+                  info->print_address_func ((bfd_vma) imm & 0x1ff, info);
+                else
+                  fpr(stream, "$r%d", imm & 0x1f);
+                break;
+              case  FT32_FLD_R_2:
+                fpr(stream, "$r%d", (iword >> FT32_FLD_R_2_BIT) & 0x1f);
+                break;
+              case  FT32_FLD_K20:
+                imm = iword & ((1 << FT32_FLD_K20_SIZ) - 1);
+                info->print_address_func ((bfd_vma) imm, info);
+                break;
+              case  FT32_FLD_PA:
+                imm = (iword & ((1 << FT32_FLD_PA_SIZ) - 1)) << 2;
+                info->print_address_func ((bfd_vma) imm, info);
+                break;
+              case  FT32_FLD_AA:
+                imm = iword & ((1 << FT32_FLD_AA_SIZ) - 1);
+                info->print_address_func ((bfd_vma) imm, info);
+                break;
+                break;
+              case  FT32_FLD_K16:
+                imm = iword & ((1 << FT32_FLD_K16_SIZ) - 1);
+                info->print_address_func ((bfd_vma) imm, info);
+                break;
+              case  FT32_FLD_K8:
+                imm = iword & ((1 << FT32_FLD_K8_SIZ) - 1);
+                info->print_address_func ((bfd_vma) imm, info);
+                break;
+                break;
+              case  FT32_FLD_R_D_POST:
+                fpr(stream, "$r%d", (iword >> FT32_FLD_R_D_BIT) & 0x1f);
+                break;
+              case  FT32_FLD_R_1_POST:
+                fpr(stream, "$r%d", (iword >> FT32_FLD_R_1_BIT) & 0x1f);
+                break;
+              default:
+                break;
+              }
+              f &= ~lobit;
+              if (f)
+                {
+                  fpr(stream, ",");
+                }
+            }
+        }
+    }
+    else
+    {
+      fpr (stream, "%08x!", iword);
+    }
+
+  return 4;
+
+ fail:
+  info->memory_error_func (status, addr, info);
+  return -1;
+}