This patch adds support to objdump for disassembly of NFP (Netronome Flow Processor) ELF files (.nffw) as well as some basic readelf support.

bfd	* Makefile.am: Added NFP files to build.
	* archures.c: Added bfd_arch_nfp
	* config.bfd: Added NFP support.
	* configure.ac: Added NFP support.
	* cpu-nfp.c: New, for NFP support.
	* elf-bfd.h: Added elf_section_info()
	* elf64-nfp.c: New, for NFP support.
	* po/SRC-POTFILES.in: Added NFP source files.
	* targets.c: Added nfp_elf64_vec
	* bfd-in2.h: Regenerate.
	* Makefile.in: Regenerate.
	* configure: Regenerate.

binutils* readelf.c: Very basic support for EM_NFP and its section types.
	* testsuite/binutils-all/nfp: New directory.
	* testsuite/binutils-all/nfp/objdump.exp: New file.  Run new
	tests.
	* testsuite/binutils-all/nfp/test2_ctx8.d: New file.
	* testsuite/binutils-all/nfp/test2_no-pc_ctx4.d: New file.
	* testsuite/binutils-all/nfp/test1.d: New file.
	* testsuite/binutils-all/nfp/nfp6000.nffw: New file.
	* testsuite/binutils-all/nfp/test2_nfp6000.nffw: New file.
	* NEWS: Mention the new support.

include	* dis-asm.h: Added print_nfp_disassembler_options prototype.
	* elf/common.h: Added EM_NFP, officially assigned. See Google Group
	Generic System V Application Binary Interface.
	* elf/nfp.h: New, for NFP support.
	* opcode/nfp.h: New, for NFP support.

opcodes	Makefile.am: Added nfp-dis.c.
	configure.ac: Added bfd_nfp_arch.
	disassemble.h: Added print_insn_nfp prototype.
	disassemble.c: Added ARCH_nfp and call to print_insn_nfp
	nfp-dis.c: New, for NFP support.
	po/POTFILES.in: Added nfp-dis.c to the list.
	Makefile.in: Regenerate.
	configure: Regenerate.

1 files changed, 276 insertions, 0 deletions

diff --git a/bfd/elf64-nfp.c b/bfd/elf64-nfp.c
new file mode 100755
index 0000000..3cdda3d
--- /dev/null
+++ b/bfd/elf64-nfp.c
@@ -0,0 +1,276 @@
+/* NFP-specific support for 64-bit ELF
+   Copyright (C) 2017-2018 Free Software Foundation, Inc.
+   Contributed by Francois H. Theron <francois.theron@netronome.com>
+
+   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 "elf-bfd.h"
+#include "elf/nfp.h"
+#include "bfd_stdint.h"
+
+
+static bfd_reloc_status_type
+elf64_nfp_reloc (bfd * abfd ATTRIBUTE_UNUSED,
+		 arelent * reloc_entry,
+		 asymbol * symbol,
+		 void *data ATTRIBUTE_UNUSED,
+		 asection * input_section,
+		 bfd * output_bfd,
+		 char **error_message ATTRIBUTE_UNUSED);
+
+/* We don't actually apply any relocations in this toolset
+   so we make them all do nothing, but at least display useful
+   names.
+   Most of these are mainly used by the NFP toolchain to resolve things
+   before the final ELF file is created.  */
+static reloc_howto_type elf_nfp_howto_table[] =
+{
+  HOWTO (R_NFP_NOTYPE,		/* Type.  */
+	 0,			/* Rightshift.  */
+	 3,			/* Size.  */
+	 0,			/* Bitsize.  */
+	 FALSE,			/* PC_relative.  */
+	 0,			/* Bitpos.  */
+	 complain_overflow_dont,/* Complain_on_overflow.  */
+	 elf64_nfp_reloc,	/* Special_function.  */
+	 "R_NFP_NOTYPE",	/* Name.  */
+	 FALSE,			/* Partial_inplace.  */
+	 0,			/* Src_mask.  */
+	 0,			/* Dst_mask.  */
+	 FALSE),		/* PCrel_offset.  */
+  HOWTO (R_NFP_W32LE, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_W32LE",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_SRC8_A, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_SRC8_A",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_SRC8_B, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_SRC8_B",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_IMMED8_I, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_IMMED8_I",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_SC, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_SC",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_IMMED_LO16_I_A, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_IMMED_LO16_I_A",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_IMMED_LO16_I_B, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_IMMED_LO16_I_B",
+	 TRUE, 0, 0, FALSE),
+  HOWTO (R_NFP_SRC7_B, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_SRC7_B",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_SRC7_A, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_SRC7_A",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_SRC8_I_B, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_SRC8_I_B",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_SRC8_I_A, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_SRC8_I_A",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_IMMED_HI16_I_A, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_IMMED_HI16_I_A",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_IMMED_HI16_I_B, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_IMMED_HI16_I_B",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_W64LE, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_W64LE",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_SH_INFO, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_SH_INFO",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_W32BE, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_W32BE",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_W64BE, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_W64BE",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_W32_29_24, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_W32_29_24",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_W32LE_AND, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_W32LE_AND",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_W32BE_AND, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_W32BE_AND",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_W32LE_OR, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_W32LE_OR",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_W32BE_OR, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_W32BE_OR",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_W64LE_AND, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_W64LE_AND",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_W64BE_AND, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_W64BE_AND",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_W64LE_OR, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_W64LE_OR",
+	 FALSE, 0, 0, FALSE),
+  HOWTO (R_NFP_W64BE_OR, 0, 3, 0, FALSE, 0,
+	 complain_overflow_dont, elf64_nfp_reloc,
+	 "R_NFP_W64BE_OR",
+	 FALSE, 0, 0, FALSE)
+};
+
+static bfd_boolean
+elf64_nfp_object_p (bfd * abfd)
+{
+  /* If the e_machine value is one of the unofficial ones, we convert
+     it first and set e_flags accordingly for later consistency.  */
+  if (elf_elfheader (abfd)->e_machine == E_NFP_MACH_3200)
+    {
+      elf_elfheader (abfd)->e_machine = EM_NFP;
+      elf_elfheader (abfd)->e_flags &= ~EF_NFP_SET_MACH (~0);
+      elf_elfheader (abfd)->e_flags |= EF_NFP_SET_MACH (E_NFP_MACH_3200);
+    }
+  else if (elf_elfheader (abfd)->e_machine == E_NFP_MACH_6000)
+    {
+      elf_elfheader (abfd)->e_machine = EM_NFP;
+      elf_elfheader (abfd)->e_flags &= ~EF_NFP_SET_MACH (~0);
+      elf_elfheader (abfd)->e_flags |= EF_NFP_SET_MACH (E_NFP_MACH_6000);
+    }
+
+  if (elf_elfheader (abfd)->e_machine == EM_NFP)
+    {
+      int e_mach = EF_NFP_MACH (elf_elfheader (abfd)->e_flags);
+
+      switch (e_mach)
+	{
+	case E_NFP_MACH_3200:
+	case E_NFP_MACH_6000:
+	  if (!bfd_default_set_arch_mach (abfd, bfd_arch_nfp, e_mach))
+	    return FALSE;
+	default:
+	  break;
+	}
+    }
+
+  return TRUE;
+}
+
+static bfd_boolean
+elf64_nfp_section_from_shdr (bfd * abfd,
+			     Elf_Internal_Shdr * hdr,
+			     const char *name, int shindex)
+{
+  switch (hdr->sh_type)
+    {
+    case SHT_NFP_INITREG:
+    case SHT_NFP_MECONFIG:
+    case SHT_NFP_UDEBUG:
+      return _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex);
+    default:
+      return FALSE;
+    }
+}
+
+bfd_reloc_status_type
+elf64_nfp_reloc (bfd * abfd ATTRIBUTE_UNUSED,
+		 arelent * reloc_entry ATTRIBUTE_UNUSED,
+		 asymbol * symbol ATTRIBUTE_UNUSED,
+		 void *data ATTRIBUTE_UNUSED,
+		 asection * input_section ATTRIBUTE_UNUSED,
+		 bfd * output_bfd ATTRIBUTE_UNUSED,
+		 char **error_message ATTRIBUTE_UNUSED)
+{
+  return bfd_reloc_ok;
+}
+
+static bfd_boolean
+elf64_nfp_info_to_howto (bfd * abfd ATTRIBUTE_UNUSED,
+			 arelent * cache_ptr, Elf_Internal_Rela * dst)
+{
+  unsigned int r_type;
+
+  r_type = ELF64_R_TYPE (dst->r_info);
+  if (r_type >= R_NFP_MAX)
+    {
+      /* xgettext:c-format */
+      _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
+			  abfd, r_type);
+      bfd_set_error (bfd_error_bad_value);
+      return FALSE;
+    }
+  cache_ptr->howto = &elf_nfp_howto_table[r_type];
+  return TRUE;
+}
+
+static reloc_howto_type *
+elf64_nfp_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED,
+			     bfd_reloc_code_real_type code ATTRIBUTE_UNUSED)
+{
+  return NULL;
+}
+
+static reloc_howto_type *
+elf64_nfp_reloc_name_lookup (bfd * abfd ATTRIBUTE_UNUSED,
+			     const char *r_name ATTRIBUTE_UNUSED)
+{
+  return NULL;
+}
+
+#define ELF_ARCH		bfd_arch_nfp
+#define ELF_MACHINE_CODE	EM_NFP
+#define ELF_MACHINE_ALT1	E_NFP_MACH_6000
+#define ELF_MACHINE_ALT2	E_NFP_MACH_3200
+#define ELF_MAXPAGESIZE		1
+#define TARGET_LITTLE_NAME	"elf64-nfp"
+#define TARGET_LITTLE_SYM       nfp_elf64_vec
+
+#define elf_backend_object_p		elf64_nfp_object_p
+#define elf_backend_section_from_shdr   elf64_nfp_section_from_shdr
+#define elf_info_to_howto		elf64_nfp_info_to_howto
+#define bfd_elf64_bfd_reloc_type_lookup	     elf64_nfp_reloc_type_lookup
+#define bfd_elf64_bfd_reloc_name_lookup      elf64_nfp_reloc_name_lookup
+
+#include "elf64-target.h"