opcodes: add support for eBPF

This patch adds support for the Linux kernel eBPF architecture to the
opcodes.  The port is based on CGEN.

opcodes/ChangeLog:

2019-05-23  Jose E. Marchesi  <jose.marchesi@oracle.com>

	* configure.ac (SHARED_DEPENDENCIES): Add case for bfd_bpf_arch.
	* configure: Regenerated.
	* Makefile.am: Add rules for the files generated from cpu/bpf.cpu
	and cpu/bpf.opc.
	(HFILES): Add bpf-desc.h and bpf-opc.h.
	(TARGET_LIBOPCODES_CFILES): Add bpf-asm.c, bpf-desc.c, bpf-dis.c,
	bpf-ibld.c and bpf-opc.c.
	(BPF_DEPS): Define.
	* Makefile.in: Regenerated.
	* disassemble.c (ARCH_bpf): Define.
	(disassembler): Add case for bfd_arch_bpf.
	(disassemble_init_for_target): Likewise.
	(enum epbf_isa_attr): Define.
	* disassemble.h: extern print_insn_bpf.
	* bpf-asm.c: Generated.
	* bpf-opc.h: Likewise.
	* bpf-opc.c: Likewise.
	* bpf-ibld.c: Likewise.
	* bpf-dis.c: Likewise.
	* bpf-desc.h: Likewise.
	* bpf-desc.c: Likewise.

1 files changed, 151 insertions, 0 deletions

diff --git a/opcodes/bpf-opc.h b/opcodes/bpf-opc.h
new file mode 100644
index 0000000..b989d7f
--- /dev/null
+++ b/opcodes/bpf-opc.h
@@ -0,0 +1,151 @@
+/* DO NOT EDIT!  -*- buffer-read-only: t -*- vi:set ro:  */
+/* Instruction opcode header for bpf.
+
+THIS FILE IS MACHINE GENERATED WITH CGEN.
+
+Copyright (C) 1996-2019 Free Software Foundation, Inc.
+
+This file is part of the GNU Binutils and/or GDB, the GNU debugger.
+
+   This file 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.
+
+*/
+
+#ifndef BPF_OPC_H
+#define BPF_OPC_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* -- opc.h */
+
+#undef CGEN_DIS_HASH_SIZE
+#define CGEN_DIS_HASH_SIZE 1
+
+#undef CGEN_DIS_HASH
+#define CGEN_DIS_HASH(buffer, value) 0
+
+/* Allows reason codes to be output when assembler errors occur.  */
+#define CGEN_VERBOSE_ASSEMBLER_ERRORS
+
+#define CGEN_VALIDATE_INSN_SUPPORTED
+extern int bpf_cgen_insn_supported (CGEN_CPU_DESC, const CGEN_INSN *);
+
+
+/* -- opc.c */
+/* Enum declaration for bpf instruction types.  */
+typedef enum cgen_insn_type {
+  BPF_INSN_INVALID, BPF_INSN_ADDILE, BPF_INSN_ADDRLE, BPF_INSN_ADD32ILE
+ , BPF_INSN_ADD32RLE, BPF_INSN_SUBILE, BPF_INSN_SUBRLE, BPF_INSN_SUB32ILE
+ , BPF_INSN_SUB32RLE, BPF_INSN_MULILE, BPF_INSN_MULRLE, BPF_INSN_MUL32ILE
+ , BPF_INSN_MUL32RLE, BPF_INSN_DIVILE, BPF_INSN_DIVRLE, BPF_INSN_DIV32ILE
+ , BPF_INSN_DIV32RLE, BPF_INSN_ORILE, BPF_INSN_ORRLE, BPF_INSN_OR32ILE
+ , BPF_INSN_OR32RLE, BPF_INSN_ANDILE, BPF_INSN_ANDRLE, BPF_INSN_AND32ILE
+ , BPF_INSN_AND32RLE, BPF_INSN_LSHILE, BPF_INSN_LSHRLE, BPF_INSN_LSH32ILE
+ , BPF_INSN_LSH32RLE, BPF_INSN_RSHILE, BPF_INSN_RSHRLE, BPF_INSN_RSH32ILE
+ , BPF_INSN_RSH32RLE, BPF_INSN_MODILE, BPF_INSN_MODRLE, BPF_INSN_MOD32ILE
+ , BPF_INSN_MOD32RLE, BPF_INSN_XORILE, BPF_INSN_XORRLE, BPF_INSN_XOR32ILE
+ , BPF_INSN_XOR32RLE, BPF_INSN_MOVILE, BPF_INSN_MOVRLE, BPF_INSN_MOV32ILE
+ , BPF_INSN_MOV32RLE, BPF_INSN_ARSHILE, BPF_INSN_ARSHRLE, BPF_INSN_ARSH32ILE
+ , BPF_INSN_ARSH32RLE, BPF_INSN_NEGLE, BPF_INSN_NEG32LE, BPF_INSN_ADDIBE
+ , BPF_INSN_ADDRBE, BPF_INSN_ADD32IBE, BPF_INSN_ADD32RBE, BPF_INSN_SUBIBE
+ , BPF_INSN_SUBRBE, BPF_INSN_SUB32IBE, BPF_INSN_SUB32RBE, BPF_INSN_MULIBE
+ , BPF_INSN_MULRBE, BPF_INSN_MUL32IBE, BPF_INSN_MUL32RBE, BPF_INSN_DIVIBE
+ , BPF_INSN_DIVRBE, BPF_INSN_DIV32IBE, BPF_INSN_DIV32RBE, BPF_INSN_ORIBE
+ , BPF_INSN_ORRBE, BPF_INSN_OR32IBE, BPF_INSN_OR32RBE, BPF_INSN_ANDIBE
+ , BPF_INSN_ANDRBE, BPF_INSN_AND32IBE, BPF_INSN_AND32RBE, BPF_INSN_LSHIBE
+ , BPF_INSN_LSHRBE, BPF_INSN_LSH32IBE, BPF_INSN_LSH32RBE, BPF_INSN_RSHIBE
+ , BPF_INSN_RSHRBE, BPF_INSN_RSH32IBE, BPF_INSN_RSH32RBE, BPF_INSN_MODIBE
+ , BPF_INSN_MODRBE, BPF_INSN_MOD32IBE, BPF_INSN_MOD32RBE, BPF_INSN_XORIBE
+ , BPF_INSN_XORRBE, BPF_INSN_XOR32IBE, BPF_INSN_XOR32RBE, BPF_INSN_MOVIBE
+ , BPF_INSN_MOVRBE, BPF_INSN_MOV32IBE, BPF_INSN_MOV32RBE, BPF_INSN_ARSHIBE
+ , BPF_INSN_ARSHRBE, BPF_INSN_ARSH32IBE, BPF_INSN_ARSH32RBE, BPF_INSN_NEGBE
+ , BPF_INSN_NEG32BE, BPF_INSN_ENDLELE, BPF_INSN_ENDBELE, BPF_INSN_ENDLEBE
+ , BPF_INSN_ENDBEBE, BPF_INSN_LDDWLE, BPF_INSN_LDDWBE, BPF_INSN_LDABSWLE
+ , BPF_INSN_LDABSHLE, BPF_INSN_LDABSBLE, BPF_INSN_LDABSDWLE, BPF_INSN_LDINDWLE
+ , BPF_INSN_LDINDHLE, BPF_INSN_LDINDBLE, BPF_INSN_LDINDDWLE, BPF_INSN_LDABSWBE
+ , BPF_INSN_LDABSHBE, BPF_INSN_LDABSBBE, BPF_INSN_LDABSDWBE, BPF_INSN_LDINDWBE
+ , BPF_INSN_LDINDHBE, BPF_INSN_LDINDBBE, BPF_INSN_LDINDDWBE, BPF_INSN_LDXWLE
+ , BPF_INSN_LDXHLE, BPF_INSN_LDXBLE, BPF_INSN_LDXDWLE, BPF_INSN_STXWLE
+ , BPF_INSN_STXHLE, BPF_INSN_STXBLE, BPF_INSN_STXDWLE, BPF_INSN_LDXWBE
+ , BPF_INSN_LDXHBE, BPF_INSN_LDXBBE, BPF_INSN_LDXDWBE, BPF_INSN_STXWBE
+ , BPF_INSN_STXHBE, BPF_INSN_STXBBE, BPF_INSN_STXDWBE, BPF_INSN_STBLE
+ , BPF_INSN_STHLE, BPF_INSN_STWLE, BPF_INSN_STDWLE, BPF_INSN_STBBE
+ , BPF_INSN_STHBE, BPF_INSN_STWBE, BPF_INSN_STDWBE, BPF_INSN_JEQILE
+ , BPF_INSN_JEQRLE, BPF_INSN_JGTILE, BPF_INSN_JGTRLE, BPF_INSN_JGEILE
+ , BPF_INSN_JGERLE, BPF_INSN_JLTILE, BPF_INSN_JLTRLE, BPF_INSN_JLEILE
+ , BPF_INSN_JLERLE, BPF_INSN_JSETILE, BPF_INSN_JSETRLE, BPF_INSN_JNEILE
+ , BPF_INSN_JNERLE, BPF_INSN_JSGTILE, BPF_INSN_JSGTRLE, BPF_INSN_JSGEILE
+ , BPF_INSN_JSGERLE, BPF_INSN_JSLTILE, BPF_INSN_JSLTRLE, BPF_INSN_JSLEILE
+ , BPF_INSN_JSLERLE, BPF_INSN_JEQIBE, BPF_INSN_JEQRBE, BPF_INSN_JGTIBE
+ , BPF_INSN_JGTRBE, BPF_INSN_JGEIBE, BPF_INSN_JGERBE, BPF_INSN_JLTIBE
+ , BPF_INSN_JLTRBE, BPF_INSN_JLEIBE, BPF_INSN_JLERBE, BPF_INSN_JSETIBE
+ , BPF_INSN_JSETRBE, BPF_INSN_JNEIBE, BPF_INSN_JNERBE, BPF_INSN_JSGTIBE
+ , BPF_INSN_JSGTRBE, BPF_INSN_JSGEIBE, BPF_INSN_JSGERBE, BPF_INSN_JSLTIBE
+ , BPF_INSN_JSLTRBE, BPF_INSN_JSLEIBE, BPF_INSN_JSLERBE, BPF_INSN_JA
+ , BPF_INSN_CALL, BPF_INSN_EXIT, BPF_INSN_XADDDWLE, BPF_INSN_XADDWLE
+ , BPF_INSN_XADDDWBE, BPF_INSN_XADDWBE
+} CGEN_INSN_TYPE;
+
+/* Index of `invalid' insn place holder.  */
+#define CGEN_INSN_INVALID BPF_INSN_INVALID
+
+/* Total number of insns in table.  */
+#define MAX_INSNS ((int) BPF_INSN_XADDWBE + 1)
+
+/* This struct records data prior to insertion or after extraction.  */
+struct cgen_fields
+{
+  int length;
+  long f_nil;
+  long f_anyof;
+  long f_op_code;
+  long f_op_src;
+  long f_op_class;
+  long f_op_mode;
+  long f_op_size;
+  long f_dstle;
+  long f_srcle;
+  long f_dstbe;
+  long f_srcbe;
+  long f_regs;
+  long f_offset16;
+  long f_imm32;
+  long f_imm64_a;
+  long f_imm64_b;
+  long f_imm64_c;
+  int64_t f_imm64;
+};
+
+#define CGEN_INIT_PARSE(od) \
+{\
+}
+#define CGEN_INIT_INSERT(od) \
+{\
+}
+#define CGEN_INIT_EXTRACT(od) \
+{\
+}
+#define CGEN_INIT_PRINT(od) \
+{\
+}
+
+
+   #ifdef __cplusplus
+   }
+   #endif
+
+#endif /* BPF_OPC_H */