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opcodes: add support for eBPF

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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.
This commit is contained in:
Jose E. Marchesi 2019-05-23 19:04:36 +02:00
parent ea195bb04c
commit 79472b4532
14 changed files with 5837 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
opcodes/ChangeLog
View File

@ -1,3 +1,27 @@
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.
2019-05-21 Sudakshina Das <sudi.das@arm.com>
* arm-dis.c (coprocessor_opcodes): New instructions for VMRS

17
opcodes/Makefile.am
View File

@ -59,6 +59,7 @@ BUILD_LIB_DEPS = @BUILD_LIB_DEPS@
# Header files.
HFILES = \
aarch64-asm.h aarch64-dis.h aarch64-opc.h aarch64-tbl.h \
bpf-desc.h bpf-opc.h \
epiphany-desc.h epiphany-opc.h \
fr30-desc.h fr30-opc.h \
frv-desc.h frv-opc.h \
@ -117,6 +118,11 @@ TARGET_LIBOPCODES_CFILES = \
d30v-dis.c \
d30v-opc.c \
dlx-dis.c \
bpf-asm.c \
bpf-desc.c \
bpf-dis.c \
bpf-ibld.c \
bpf-opc.c \
epiphany-asm.c \
epiphany-desc.c \
epiphany-dis.c \
@ -370,6 +376,7 @@ CGENDEPS = \
CGEN_CPUS = epiphany fr30 frv ip2k iq2000 lm32 m32c m32r mep mt or1k xc16x xstormy16
if CGEN_MAINT
BPF_DEPS = stamp-bpf
EPIPHANY_DEPS = stamp-epiphany
FR30_DEPS = stamp-fr30
FRV_DEPS = stamp-frv
@ -384,6 +391,7 @@ OR1K_DEPS = stamp-or1k
XC16X_DEPS = stamp-xc16x
XSTORMY16_DEPS = stamp-xstormy16
else
BPF_DEPS =
EPIPHANY_DEPS =
FR30_DEPS =
FRV_DEPS =
@ -416,6 +424,15 @@ run-cgen-all:
# For now, require developers to configure with --enable-cgen-maint.
$(srcdir)/bpf-desc.h $(srcdir)/bpf-desc.c $(srcdir)/bpf-opc.h \
$(srcdir)/bpf-opc.c $(srcdir)/bpf-ibld.c \
$(srcdir)/bpf-asm.c $(srcdir)/bpf-dis.c: $(BPF_DEPS)
@true
stamp-bpf: $(CGENDEPS) $(CPUDIR)/bpf.cpu $(CPUDIR)/bpf.opc
$(MAKE) run-cgen arch=bpf prefix=bpf \
archfile=$(CPUDIR)/bpf.cpu opcfile=$(CPUDIR)/bpf.opc
$(srcdir)/epiphany-desc.h $(srcdir)/epiphany-desc.c $(srcdir)/epiphany-opc.h \
$(srcdir)/epiphany-opc.c $(srcdir)/epiphany-ibld.c \
$(srcdir)/epiphany-opinst.c $(srcdir)/epiphany-asm.c \

23
opcodes/Makefile.in
View File

@ -408,6 +408,7 @@ pdfdir = @pdfdir@
prefix = @prefix@
program_transform_name = @program_transform_name@
psdir = @psdir@
runstatedir = @runstatedir@
sbindir = @sbindir@
sharedstatedir = @sharedstatedir@
srcdir = @srcdir@
@ -448,6 +449,7 @@ BFD_H = ../bfd/bfd.h
# Header files.
HFILES = \
aarch64-asm.h aarch64-dis.h aarch64-opc.h aarch64-tbl.h \
bpf-desc.h bpf-opc.h \
epiphany-desc.h epiphany-opc.h \
fr30-desc.h fr30-opc.h \
frv-desc.h frv-opc.h \
@ -507,6 +509,11 @@ TARGET_LIBOPCODES_CFILES = \
d30v-dis.c \
d30v-opc.c \
dlx-dis.c \
bpf-asm.c \
bpf-desc.c \
bpf-dis.c \
bpf-ibld.c \
bpf-opc.c \
epiphany-asm.c \
epiphany-desc.c \
epiphany-dis.c \
@ -725,6 +732,8 @@ CGENDEPS = \
cgen-asm.in cgen-dis.in cgen-ibld.in
CGEN_CPUS = epiphany fr30 frv ip2k iq2000 lm32 m32c m32r mep mt or1k xc16x xstormy16
@CGEN_MAINT_FALSE@BPF_DEPS =
@CGEN_MAINT_TRUE@BPF_DEPS = stamp-bpf
@CGEN_MAINT_FALSE@EPIPHANY_DEPS =
@CGEN_MAINT_TRUE@EPIPHANY_DEPS = stamp-epiphany
@CGEN_MAINT_FALSE@FR30_DEPS =
@ -897,6 +906,11 @@ distclean-compile:
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/arm-dis.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/avr-dis.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bfin-dis.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bpf-asm.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bpf-desc.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bpf-dis.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bpf-ibld.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bpf-opc.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cgen-asm.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cgen-bitset.Plo@am__quote@
@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/cgen-dis.Plo@am__quote@
@ -1398,6 +1412,15 @@ run-cgen-all:
# For now, require developers to configure with --enable-cgen-maint.
$(srcdir)/bpf-desc.h $(srcdir)/bpf-desc.c $(srcdir)/bpf-opc.h \
$(srcdir)/bpf-opc.c $(srcdir)/bpf-ibld.c \
$(srcdir)/bpf-asm.c $(srcdir)/bpf-dis.c: $(BPF_DEPS)
@true
stamp-bpf: $(CGENDEPS) $(CPUDIR)/bpf.cpu $(CPUDIR)/bpf.opc
$(MAKE) run-cgen arch=bpf prefix=bpf \
archfile=$(CPUDIR)/bpf.cpu opcfile=$(CPUDIR)/bpf.opc
$(srcdir)/epiphany-desc.h $(srcdir)/epiphany-desc.c $(srcdir)/epiphany-opc.h \
$(srcdir)/epiphany-opc.c $(srcdir)/epiphany-ibld.c \
$(srcdir)/epiphany-opinst.c $(srcdir)/epiphany-asm.c \

590
opcodes/bpf-asm.c Normal file
View File

@ -0,0 +1,590 @@
/* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */
/* Assembler interface for targets using CGEN. -*- C -*-
CGEN: Cpu tools GENerator
THIS FILE IS MACHINE GENERATED WITH CGEN.
- the resultant file is machine generated, cgen-asm.in isn't
Copyright (C) 1996-2019 Free Software Foundation, Inc.
This file is part of libopcodes.
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. */
/* ??? Eventually more and more of this stuff can go to cpu-independent files.
Keep that in mind. */
#include "sysdep.h"
#include <stdio.h>
#include "ansidecl.h"
#include "bfd.h"
#include "symcat.h"
#include "bpf-desc.h"
#include "bpf-opc.h"
#include "opintl.h"
#include "xregex.h"
#include "libiberty.h"
#include "safe-ctype.h"
#undef min
#define min(a,b) ((a) < (b) ? (a) : (b))
#undef max
#define max(a,b) ((a) > (b) ? (a) : (b))
static const char * parse_insn_normal
(CGEN_CPU_DESC, const CGEN_INSN *, const char **, CGEN_FIELDS *);
/* -- assembler routines inserted here. */
/* -- asm.c */
/* Parse a signed 64-bit immediate. */
static const char *
parse_imm64 (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
int64_t *valuep)
{
bfd_vma value;
enum cgen_parse_operand_result result;
const char *errmsg;
errmsg = (* cd->parse_operand_fn)
(cd, CGEN_PARSE_OPERAND_INTEGER, strp, opindex, BFD_RELOC_NONE,
&result, &value);
if (!errmsg)
*valuep = value;
return errmsg;
}
/* Endianness size operands are integer immediates whose values can be
16, 32 or 64. */
static const char *
parse_endsize (CGEN_CPU_DESC cd,
const char **strp,
int opindex,
unsigned long *valuep)
{
const char *errmsg;
errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
if (errmsg)
return errmsg;
switch (*valuep)
{
case 16:
case 32:
case 64:
break;
default:
return _("expected 16, 32 or 64 in");
}
return NULL;
}
/* Special check to ensure that the right instruction variant is used
for the given endianness induced by the ISA selected in the CPU.
See bpf.cpu for a discussion on how eBPF is really two instruction
sets. */
int
bpf_cgen_insn_supported (CGEN_CPU_DESC cd, const CGEN_INSN *insn)
{
CGEN_BITSET isas = CGEN_INSN_BITSET_ATTR_VALUE (insn, CGEN_INSN_ISA);
return cgen_bitset_intersect_p (&isas, cd->isas);
}
/* -- dis.c */
const char * bpf_cgen_parse_operand
(CGEN_CPU_DESC, int, const char **, CGEN_FIELDS *);
/* Main entry point for operand parsing.
This function is basically just a big switch statement. Earlier versions
used tables to look up the function to use, but
- if the table contains both assembler and disassembler functions then
the disassembler contains much of the assembler and vice-versa,
- there's a lot of inlining possibilities as things grow,
- using a switch statement avoids the function call overhead.
This function could be moved into `parse_insn_normal', but keeping it
separate makes clear the interface between `parse_insn_normal' and each of
the handlers. */
const char *
bpf_cgen_parse_operand (CGEN_CPU_DESC cd,
int opindex,
const char ** strp,
CGEN_FIELDS * fields)
{
const char * errmsg = NULL;
/* Used by scalar operands that still need to be parsed. */
long junk ATTRIBUTE_UNUSED;
switch (opindex)
{
case BPF_OPERAND_DISP16 :
errmsg = cgen_parse_signed_integer (cd, strp, BPF_OPERAND_DISP16, (long *) (& fields->f_offset16));
break;
case BPF_OPERAND_DISP32 :
errmsg = cgen_parse_signed_integer (cd, strp, BPF_OPERAND_DISP32, (long *) (& fields->f_imm32));
break;
case BPF_OPERAND_DSTBE :
errmsg = cgen_parse_keyword (cd, strp, & bpf_cgen_opval_h_gpr, & fields->f_dstbe);
break;
case BPF_OPERAND_DSTLE :
errmsg = cgen_parse_keyword (cd, strp, & bpf_cgen_opval_h_gpr, & fields->f_dstle);
break;
case BPF_OPERAND_ENDSIZE :
errmsg = parse_endsize (cd, strp, BPF_OPERAND_ENDSIZE, (unsigned long *) (& fields->f_imm32));
break;
case BPF_OPERAND_IMM32 :
errmsg = cgen_parse_signed_integer (cd, strp, BPF_OPERAND_IMM32, (long *) (& fields->f_imm32));
break;
case BPF_OPERAND_IMM64 :
errmsg = parse_imm64 (cd, strp, BPF_OPERAND_IMM64, (int64_t *) (& fields->f_imm64));
break;
case BPF_OPERAND_OFFSET16 :
errmsg = cgen_parse_signed_integer (cd, strp, BPF_OPERAND_OFFSET16, (long *) (& fields->f_offset16));
break;
case BPF_OPERAND_SRCBE :
errmsg = cgen_parse_keyword (cd, strp, & bpf_cgen_opval_h_gpr, & fields->f_srcbe);
break;
case BPF_OPERAND_SRCLE :
errmsg = cgen_parse_keyword (cd, strp, & bpf_cgen_opval_h_gpr, & fields->f_srcle);
break;
default :
/* xgettext:c-format */
opcodes_error_handler
(_("internal error: unrecognized field %d while parsing"),
opindex);
abort ();
}
return errmsg;
}
cgen_parse_fn * const bpf_cgen_parse_handlers[] =
{
parse_insn_normal,
};
void
bpf_cgen_init_asm (CGEN_CPU_DESC cd)
{
bpf_cgen_init_opcode_table (cd);
bpf_cgen_init_ibld_table (cd);
cd->parse_handlers = & bpf_cgen_parse_handlers[0];
cd->parse_operand = bpf_cgen_parse_operand;
#ifdef CGEN_ASM_INIT_HOOK
CGEN_ASM_INIT_HOOK
#endif
}
/* Regex construction routine.
This translates an opcode syntax string into a regex string,
by replacing any non-character syntax element (such as an
opcode) with the pattern '.*'
It then compiles the regex and stores it in the opcode, for
later use by bpf_cgen_assemble_insn
Returns NULL for success, an error message for failure. */
char *
bpf_cgen_build_insn_regex (CGEN_INSN *insn)
{
CGEN_OPCODE *opc = (CGEN_OPCODE *) CGEN_INSN_OPCODE (insn);
const char *mnem = CGEN_INSN_MNEMONIC (insn);
char rxbuf[CGEN_MAX_RX_ELEMENTS];
char *rx = rxbuf;
const CGEN_SYNTAX_CHAR_TYPE *syn;
int reg_err;
syn = CGEN_SYNTAX_STRING (CGEN_OPCODE_SYNTAX (opc));
/* Mnemonics come first in the syntax string. */
if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
return _("missing mnemonic in syntax string");
++syn;
/* Generate a case sensitive regular expression that emulates case
insensitive matching in the "C" locale. We cannot generate a case
insensitive regular expression because in Turkish locales, 'i' and 'I'
are not equal modulo case conversion. */
/* Copy the literal mnemonic out of the insn. */
for (; *mnem; mnem++)
{
char c = *mnem;
if (ISALPHA (c))
{
*rx++ = '[';
*rx++ = TOLOWER (c);
*rx++ = TOUPPER (c);
*rx++ = ']';
}
else
*rx++ = c;
}
/* Copy any remaining literals from the syntax string into the rx. */
for(; * syn != 0 && rx <= rxbuf + (CGEN_MAX_RX_ELEMENTS - 7 - 4); ++syn)
{
if (CGEN_SYNTAX_CHAR_P (* syn))
{
char c = CGEN_SYNTAX_CHAR (* syn);
switch (c)
{
/* Escape any regex metacharacters in the syntax. */
case '.': case '[': case '\\':
case '*': case '^': case '$':
#ifdef CGEN_ESCAPE_EXTENDED_REGEX
case '?': case '{': case '}':
case '(': case ')': case '*':
case '|': case '+': case ']':
#endif
*rx++ = '\\';
*rx++ = c;
break;
default:
if (ISALPHA (c))
{
*rx++ = '[';
*rx++ = TOLOWER (c);
*rx++ = TOUPPER (c);
*rx++ = ']';
}
else
*rx++ = c;
break;
}
}
else
{
/* Replace non-syntax fields with globs. */
*rx++ = '.';
*rx++ = '*';
}
}
/* Trailing whitespace ok. */
* rx++ = '[';
* rx++ = ' ';
* rx++ = '\t';
* rx++ = ']';
* rx++ = '*';
/* But anchor it after that. */
* rx++ = '$';
* rx = '\0';
CGEN_INSN_RX (insn) = xmalloc (sizeof (regex_t));
reg_err = regcomp ((regex_t *) CGEN_INSN_RX (insn), rxbuf, REG_NOSUB);
if (reg_err == 0)
return NULL;
else
{
static char msg[80];
regerror (reg_err, (regex_t *) CGEN_INSN_RX (insn), msg, 80);
regfree ((regex_t *) CGEN_INSN_RX (insn));
free (CGEN_INSN_RX (insn));
(CGEN_INSN_RX (insn)) = NULL;
return msg;
}
}
/* Default insn parser.
The syntax string is scanned and operands are parsed and stored in FIELDS.
Relocs are queued as we go via other callbacks.
??? Note that this is currently an all-or-nothing parser. If we fail to
parse the instruction, we return 0 and the caller will start over from
the beginning. Backtracking will be necessary in parsing subexpressions,
but that can be handled there. Not handling backtracking here may get
expensive in the case of the m68k. Deal with later.
Returns NULL for success, an error message for failure. */
static const char *
parse_insn_normal (CGEN_CPU_DESC cd,
const CGEN_INSN *insn,
const char **strp,
CGEN_FIELDS *fields)
{
/* ??? Runtime added insns not handled yet. */
const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
const char *str = *strp;
const char *errmsg;
const char *p;
const CGEN_SYNTAX_CHAR_TYPE * syn;
#ifdef CGEN_MNEMONIC_OPERANDS
/* FIXME: wip */
int past_opcode_p;
#endif
/* For now we assume the mnemonic is first (there are no leading operands).
We can parse it without needing to set up operand parsing.
GAS's input scrubber will ensure mnemonics are lowercase, but we may
not be called from GAS. */
p = CGEN_INSN_MNEMONIC (insn);
while (*p && TOLOWER (*p) == TOLOWER (*str))
++p, ++str;
if (* p)
return _("unrecognized instruction");
#ifndef CGEN_MNEMONIC_OPERANDS
if (* str && ! ISSPACE (* str))
return _("unrecognized instruction");
#endif
CGEN_INIT_PARSE (cd);
cgen_init_parse_operand (cd);
#ifdef CGEN_MNEMONIC_OPERANDS
past_opcode_p = 0;
#endif
/* We don't check for (*str != '\0') here because we want to parse
any trailing fake arguments in the syntax string. */
syn = CGEN_SYNTAX_STRING (syntax);
/* Mnemonics come first for now, ensure valid string. */
if (! CGEN_SYNTAX_MNEMONIC_P (* syn))
abort ();
++syn;
while (* syn != 0)
{
/* Non operand chars must match exactly. */
if (CGEN_SYNTAX_CHAR_P (* syn))
{
/* FIXME: While we allow for non-GAS callers above, we assume the
first char after the mnemonic part is a space. */
/* FIXME: We also take inappropriate advantage of the fact that
GAS's input scrubber will remove extraneous blanks. */
if (TOLOWER (*str) == TOLOWER (CGEN_SYNTAX_CHAR (* syn)))
{
#ifdef CGEN_MNEMONIC_OPERANDS
if (CGEN_SYNTAX_CHAR(* syn) == ' ')
past_opcode_p = 1;
#endif
++ syn;
++ str;
}
else if (*str)
{
/* Syntax char didn't match. Can't be this insn. */
static char msg [80];
/* xgettext:c-format */
sprintf (msg, _("syntax error (expected char `%c', found `%c')"),
CGEN_SYNTAX_CHAR(*syn), *str);
return msg;
}
else
{
/* Ran out of input. */
static char msg [80];
/* xgettext:c-format */
sprintf (msg, _("syntax error (expected char `%c', found end of instruction)"),
CGEN_SYNTAX_CHAR(*syn));
return msg;
}
continue;
}
#ifdef CGEN_MNEMONIC_OPERANDS
(void) past_opcode_p;
#endif
/* We have an operand of some sort. */
errmsg = cd->parse_operand (cd, CGEN_SYNTAX_FIELD (*syn), &str, fields);
if (errmsg)
return errmsg;
/* Done with this operand, continue with next one. */
++ syn;
}
/* If we're at the end of the syntax string, we're done. */
if (* syn == 0)
{
/* FIXME: For the moment we assume a valid `str' can only contain
blanks now. IE: We needn't try again with a longer version of
the insn and it is assumed that longer versions of insns appear
before shorter ones (eg: lsr r2,r3,1 vs lsr r2,r3). */
while (ISSPACE (* str))
++ str;
if (* str != '\0')
return _("junk at end of line"); /* FIXME: would like to include `str' */
return NULL;
}
/* We couldn't parse it. */
return _("unrecognized instruction");
}
/* Main entry point.
This routine is called for each instruction to be assembled.
STR points to the insn to be assembled.
We assume all necessary tables have been initialized.
The assembled instruction, less any fixups, is stored in BUF.
Remember that if CGEN_INT_INSN_P then BUF is an int and thus the value
still needs to be converted to target byte order, otherwise BUF is an array
of bytes in target byte order.
The result is a pointer to the insn's entry in the opcode table,
or NULL if an error occured (an error message will have already been
printed).
Note that when processing (non-alias) macro-insns,
this function recurses.
??? It's possible to make this cpu-independent.
One would have to deal with a few minor things.
At this point in time doing so would be more of a curiosity than useful
[for example this file isn't _that_ big], but keeping the possibility in
mind helps keep the design clean. */
const CGEN_INSN *
bpf_cgen_assemble_insn (CGEN_CPU_DESC cd,
const char *str,
CGEN_FIELDS *fields,
CGEN_INSN_BYTES_PTR buf,
char **errmsg)
{
const char *start;
CGEN_INSN_LIST *ilist;
const char *parse_errmsg = NULL;
const char *insert_errmsg = NULL;
int recognized_mnemonic = 0;
/* Skip leading white space. */
while (ISSPACE (* str))
++ str;
/* The instructions are stored in hashed lists.
Get the first in the list. */
ilist = CGEN_ASM_LOOKUP_INSN (cd, str);
/* Keep looking until we find a match. */
start = str;
for ( ; ilist != NULL ; ilist = CGEN_ASM_NEXT_INSN (ilist))
{
const CGEN_INSN *insn = ilist->insn;
recognized_mnemonic = 1;
#ifdef CGEN_VALIDATE_INSN_SUPPORTED
/* Not usually needed as unsupported opcodes
shouldn't be in the hash lists. */
/* Is this insn supported by the selected cpu? */
if (! bpf_cgen_insn_supported (cd, insn))
continue;
#endif
/* If the RELAXED attribute is set, this is an insn that shouldn't be
chosen immediately. Instead, it is used during assembler/linker
relaxation if possible. */
if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_RELAXED) != 0)
continue;
str = start;
/* Skip this insn if str doesn't look right lexically. */
if (CGEN_INSN_RX (insn) != NULL &&
regexec ((regex_t *) CGEN_INSN_RX (insn), str, 0, NULL, 0) == REG_NOMATCH)
continue;
/* Allow parse/insert handlers to obtain length of insn. */
CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
parse_errmsg = CGEN_PARSE_FN (cd, insn) (cd, insn, & str, fields);
if (parse_errmsg != NULL)
continue;
/* ??? 0 is passed for `pc'. */
insert_errmsg = CGEN_INSERT_FN (cd, insn) (cd, insn, fields, buf,
(bfd_vma) 0);
if (insert_errmsg != NULL)
continue;
/* It is up to the caller to actually output the insn and any
queued relocs. */
return insn;
}
{
static char errbuf[150];
const char *tmp_errmsg;
#ifdef CGEN_VERBOSE_ASSEMBLER_ERRORS
#define be_verbose 1
#else
#define be_verbose 0
#endif
if (be_verbose)
{
/* If requesting verbose error messages, use insert_errmsg.
Failing that, use parse_errmsg. */
tmp_errmsg = (insert_errmsg ? insert_errmsg :
parse_errmsg ? parse_errmsg :
recognized_mnemonic ?
_("unrecognized form of instruction") :
_("unrecognized instruction"));
if (strlen (start) > 50)
/* xgettext:c-format */
sprintf (errbuf, "%s `%.50s...'", tmp_errmsg, start);
else
/* xgettext:c-format */
sprintf (errbuf, "%s `%.50s'", tmp_errmsg, start);
}
else
{
if (strlen (start) > 50)
/* xgettext:c-format */
sprintf (errbuf, _("bad instruction `%.50s...'"), start);
else
/* xgettext:c-format */
sprintf (errbuf, _("bad instruction `%.50s'"), start);
}
*errmsg = errbuf;
return NULL;
}
}

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/* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */
/* CPU data 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_CPU_H
#define BPF_CPU_H
#ifdef __cplusplus
extern "C" {
#endif
#define CGEN_ARCH bpf
/* Given symbol S, return bpf_cgen_<S>. */
#define CGEN_SYM(s) bpf##_cgen_##s
/* Selected cpu families. */
#define HAVE_CPU_BPFBF
#define CGEN_INSN_LSB0_P 1
/* Minimum size of any insn (in bytes). */
#define CGEN_MIN_INSN_SIZE 8
/* Maximum size of any insn (in bytes). */
#define CGEN_MAX_INSN_SIZE 16
#define CGEN_INT_INSN_P 0
/* Maximum number of syntax elements in an instruction. */
#define CGEN_ACTUAL_MAX_SYNTAX_ELEMENTS 16
/* CGEN_MNEMONIC_OPERANDS is defined if mnemonics have operands.
e.g. In "b,a foo" the ",a" is an operand. If mnemonics have operands
we can't hash on everything up to the space. */
#define CGEN_MNEMONIC_OPERANDS
/* Maximum number of fields in an instruction. */
#define CGEN_ACTUAL_MAX_IFMT_OPERANDS 7
/* Enums. */
/* Enum declaration for eBPF instruction codes. */
typedef enum insn_op_code_alu {
OP_CODE_ADD = 0, OP_CODE_SUB = 1, OP_CODE_MUL = 2, OP_CODE_DIV = 3
, OP_CODE_OR = 4, OP_CODE_AND = 5, OP_CODE_LSH = 6, OP_CODE_RSH = 7
, OP_CODE_NEG = 8, OP_CODE_MOD = 9, OP_CODE_XOR = 10, OP_CODE_MOV = 11
, OP_CODE_ARSH = 12, OP_CODE_END = 13, OP_CODE_JA = 0, OP_CODE_JEQ = 1
, OP_CODE_JGT = 2, OP_CODE_JGE = 3, OP_CODE_JSET = 4, OP_CODE_JNE = 5
, OP_CODE_JSGT = 6, OP_CODE_JSGE = 7, OP_CODE_CALL = 8, OP_CODE_EXIT = 9
, OP_CODE_JLT = 10, OP_CODE_JLE = 11, OP_CODE_JSLT = 12, OP_CODE_JSLE = 13
} INSN_OP_CODE_ALU;
/* Enum declaration for eBPF instruction source. */
typedef enum insn_op_src {
OP_SRC_K, OP_SRC_X
} INSN_OP_SRC;
/* Enum declaration for eBPF instruction class. */
typedef enum insn_op_class {
OP_CLASS_LD = 0, OP_CLASS_LDX = 1, OP_CLASS_ST = 2, OP_CLASS_STX = 3
, OP_CLASS_ALU = 4, OP_CLASS_JMP = 5, OP_CLASS_ALU64 = 7
} INSN_OP_CLASS;
/* Enum declaration for eBPF load/store instruction modes. */
typedef enum insn_op_mode {
OP_MODE_IMM = 0, OP_MODE_ABS = 1, OP_MODE_IND = 2, OP_MODE_MEM = 3
, OP_MODE_XADD = 6
} INSN_OP_MODE;
/* Enum declaration for eBPF load/store instruction sizes. */
typedef enum insn_op_size {
OP_SIZE_W, OP_SIZE_H, OP_SIZE_B, OP_SIZE_DW
} INSN_OP_SIZE;
/* Attributes. */
/* Enum declaration for machine type selection. */
typedef enum mach_attr {
MACH_BASE, MACH_BPF, MACH_MAX
} MACH_ATTR;
/* Enum declaration for instruction set selection. */
typedef enum isa_attr {
ISA_EBPFLE, ISA_EBPFBE, ISA_MAX
} ISA_ATTR;
/* Number of architecture variants. */
#define MAX_ISAS ((int) ISA_MAX)
#define MAX_MACHS ((int) MACH_MAX)
/* Ifield support. */
/* Ifield attribute indices. */
/* Enum declaration for cgen_ifld attrs. */
typedef enum cgen_ifld_attr {
CGEN_IFLD_VIRTUAL, CGEN_IFLD_PCREL_ADDR, CGEN_IFLD_ABS_ADDR, CGEN_IFLD_RESERVED
, CGEN_IFLD_SIGN_OPT, CGEN_IFLD_SIGNED, CGEN_IFLD_END_BOOLS, CGEN_IFLD_START_NBOOLS = 31
, CGEN_IFLD_MACH, CGEN_IFLD_ISA, CGEN_IFLD_END_NBOOLS
} CGEN_IFLD_ATTR;
/* Number of non-boolean elements in cgen_ifld_attr. */
#define CGEN_IFLD_NBOOL_ATTRS (CGEN_IFLD_END_NBOOLS - CGEN_IFLD_START_NBOOLS - 1)
/* cgen_ifld attribute accessor macros. */
#define CGEN_ATTR_CGEN_IFLD_MACH_VALUE(attrs) ((attrs)->nonbool[CGEN_IFLD_MACH-CGEN_IFLD_START_NBOOLS-1].nonbitset)
#define CGEN_ATTR_CGEN_IFLD_ISA_VALUE(attrs) ((attrs)->nonbool[CGEN_IFLD_ISA-CGEN_IFLD_START_NBOOLS-1].bitset)
#define CGEN_ATTR_CGEN_IFLD_VIRTUAL_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_IFLD_VIRTUAL)) != 0)
#define CGEN_ATTR_CGEN_IFLD_PCREL_ADDR_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_IFLD_PCREL_ADDR)) != 0)
#define CGEN_ATTR_CGEN_IFLD_ABS_ADDR_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_IFLD_ABS_ADDR)) != 0)
#define CGEN_ATTR_CGEN_IFLD_RESERVED_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_IFLD_RESERVED)) != 0)
#define CGEN_ATTR_CGEN_IFLD_SIGN_OPT_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_IFLD_SIGN_OPT)) != 0)
#define CGEN_ATTR_CGEN_IFLD_SIGNED_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_IFLD_SIGNED)) != 0)
/* Enum declaration for bpf ifield types. */
typedef enum ifield_type {
BPF_F_NIL, BPF_F_ANYOF, BPF_F_OP_CODE, BPF_F_OP_SRC
, BPF_F_OP_CLASS, BPF_F_OP_MODE, BPF_F_OP_SIZE, BPF_F_DSTLE
, BPF_F_SRCLE, BPF_F_DSTBE, BPF_F_SRCBE, BPF_F_REGS
, BPF_F_OFFSET16, BPF_F_IMM32, BPF_F_IMM64_A, BPF_F_IMM64_B
, BPF_F_IMM64_C, BPF_F_IMM64, BPF_F_MAX
} IFIELD_TYPE;
#define MAX_IFLD ((int) BPF_F_MAX)
/* Hardware attribute indices. */
/* Enum declaration for cgen_hw attrs. */
typedef enum cgen_hw_attr {
CGEN_HW_VIRTUAL, CGEN_HW_CACHE_ADDR, CGEN_HW_PC, CGEN_HW_PROFILE
, CGEN_HW_END_BOOLS, CGEN_HW_START_NBOOLS = 31, CGEN_HW_MACH, CGEN_HW_ISA
, CGEN_HW_END_NBOOLS
} CGEN_HW_ATTR;
/* Number of non-boolean elements in cgen_hw_attr. */
#define CGEN_HW_NBOOL_ATTRS (CGEN_HW_END_NBOOLS - CGEN_HW_START_NBOOLS - 1)
/* cgen_hw attribute accessor macros. */
#define CGEN_ATTR_CGEN_HW_MACH_VALUE(attrs) ((attrs)->nonbool[CGEN_HW_MACH-CGEN_HW_START_NBOOLS-1].nonbitset)
#define CGEN_ATTR_CGEN_HW_ISA_VALUE(attrs) ((attrs)->nonbool[CGEN_HW_ISA-CGEN_HW_START_NBOOLS-1].bitset)
#define CGEN_ATTR_CGEN_HW_VIRTUAL_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_HW_VIRTUAL)) != 0)
#define CGEN_ATTR_CGEN_HW_CACHE_ADDR_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_HW_CACHE_ADDR)) != 0)
#define CGEN_ATTR_CGEN_HW_PC_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_HW_PC)) != 0)
#define CGEN_ATTR_CGEN_HW_PROFILE_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_HW_PROFILE)) != 0)
/* Enum declaration for bpf hardware types. */
typedef enum cgen_hw_type {
HW_H_MEMORY, HW_H_SINT, HW_H_UINT, HW_H_ADDR
, HW_H_IADDR, HW_H_GPR, HW_H_PC, HW_H_SINT64
, HW_MAX
} CGEN_HW_TYPE;
#define MAX_HW ((int) HW_MAX)
/* Operand attribute indices. */
/* Enum declaration for cgen_operand attrs. */
typedef enum cgen_operand_attr {
CGEN_OPERAND_VIRTUAL, CGEN_OPERAND_PCREL_ADDR, CGEN_OPERAND_ABS_ADDR, CGEN_OPERAND_SIGN_OPT
, CGEN_OPERAND_SIGNED, CGEN_OPERAND_NEGATIVE, CGEN_OPERAND_RELAX, CGEN_OPERAND_SEM_ONLY
, CGEN_OPERAND_END_BOOLS, CGEN_OPERAND_START_NBOOLS = 31, CGEN_OPERAND_MACH, CGEN_OPERAND_ISA
, CGEN_OPERAND_END_NBOOLS
} CGEN_OPERAND_ATTR;
/* Number of non-boolean elements in cgen_operand_attr. */
#define CGEN_OPERAND_NBOOL_ATTRS (CGEN_OPERAND_END_NBOOLS - CGEN_OPERAND_START_NBOOLS - 1)
/* cgen_operand attribute accessor macros. */
#define CGEN_ATTR_CGEN_OPERAND_MACH_VALUE(attrs) ((attrs)->nonbool[CGEN_OPERAND_MACH-CGEN_OPERAND_START_NBOOLS-1].nonbitset)
#define CGEN_ATTR_CGEN_OPERAND_ISA_VALUE(attrs) ((attrs)->nonbool[CGEN_OPERAND_ISA-CGEN_OPERAND_START_NBOOLS-1].bitset)
#define CGEN_ATTR_CGEN_OPERAND_VIRTUAL_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_OPERAND_VIRTUAL)) != 0)
#define CGEN_ATTR_CGEN_OPERAND_PCREL_ADDR_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_OPERAND_PCREL_ADDR)) != 0)
#define CGEN_ATTR_CGEN_OPERAND_ABS_ADDR_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_OPERAND_ABS_ADDR)) != 0)
#define CGEN_ATTR_CGEN_OPERAND_SIGN_OPT_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_OPERAND_SIGN_OPT)) != 0)
#define CGEN_ATTR_CGEN_OPERAND_SIGNED_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_OPERAND_SIGNED)) != 0)
#define CGEN_ATTR_CGEN_OPERAND_NEGATIVE_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_OPERAND_NEGATIVE)) != 0)
#define CGEN_ATTR_CGEN_OPERAND_RELAX_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_OPERAND_RELAX)) != 0)
#define CGEN_ATTR_CGEN_OPERAND_SEM_ONLY_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_OPERAND_SEM_ONLY)) != 0)
/* Enum declaration for bpf operand types. */
typedef enum cgen_operand_type {
BPF_OPERAND_PC, BPF_OPERAND_DSTLE, BPF_OPERAND_SRCLE, BPF_OPERAND_DSTBE
, BPF_OPERAND_SRCBE, BPF_OPERAND_DISP16, BPF_OPERAND_DISP32, BPF_OPERAND_IMM32
, BPF_OPERAND_OFFSET16, BPF_OPERAND_IMM64, BPF_OPERAND_ENDSIZE, BPF_OPERAND_MAX
} CGEN_OPERAND_TYPE;
/* Number of operands types. */
#define MAX_OPERANDS 11
/* Maximum number of operands referenced by any insn. */
#define MAX_OPERAND_INSTANCES 8
/* Insn attribute indices. */
/* Enum declaration for cgen_insn attrs. */
typedef enum cgen_insn_attr {
CGEN_INSN_ALIAS, CGEN_INSN_VIRTUAL, CGEN_INSN_UNCOND_CTI, CGEN_INSN_COND_CTI
, CGEN_INSN_SKIP_CTI, CGEN_INSN_DELAY_SLOT, CGEN_INSN_RELAXABLE, CGEN_INSN_RELAXED
, CGEN_INSN_NO_DIS, CGEN_INSN_PBB, CGEN_INSN_END_BOOLS, CGEN_INSN_START_NBOOLS = 31
, CGEN_INSN_MACH, CGEN_INSN_ISA, CGEN_INSN_END_NBOOLS
} CGEN_INSN_ATTR;
/* Number of non-boolean elements in cgen_insn_attr. */
#define CGEN_INSN_NBOOL_ATTRS (CGEN_INSN_END_NBOOLS - CGEN_INSN_START_NBOOLS - 1)
/* cgen_insn attribute accessor macros. */
#define CGEN_ATTR_CGEN_INSN_MACH_VALUE(attrs) ((attrs)->nonbool[CGEN_INSN_MACH-CGEN_INSN_START_NBOOLS-1].nonbitset)
#define CGEN_ATTR_CGEN_INSN_ISA_VALUE(attrs) ((attrs)->nonbool[CGEN_INSN_ISA-CGEN_INSN_START_NBOOLS-1].bitset)
#define CGEN_ATTR_CGEN_INSN_ALIAS_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_INSN_ALIAS)) != 0)
#define CGEN_ATTR_CGEN_INSN_VIRTUAL_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_INSN_VIRTUAL)) != 0)
#define CGEN_ATTR_CGEN_INSN_UNCOND_CTI_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_INSN_UNCOND_CTI)) != 0)
#define CGEN_ATTR_CGEN_INSN_COND_CTI_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_INSN_COND_CTI)) != 0)
#define CGEN_ATTR_CGEN_INSN_SKIP_CTI_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_INSN_SKIP_CTI)) != 0)
#define CGEN_ATTR_CGEN_INSN_DELAY_SLOT_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_INSN_DELAY_SLOT)) != 0)
#define CGEN_ATTR_CGEN_INSN_RELAXABLE_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_INSN_RELAXABLE)) != 0)
#define CGEN_ATTR_CGEN_INSN_RELAXED_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_INSN_RELAXED)) != 0)
#define CGEN_ATTR_CGEN_INSN_NO_DIS_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_INSN_NO_DIS)) != 0)
#define CGEN_ATTR_CGEN_INSN_PBB_VALUE(attrs) (((attrs)->bool_ & (1 << CGEN_INSN_PBB)) != 0)
/* cgen.h uses things we just defined. */
#include "opcode/cgen.h"
extern const struct cgen_ifld bpf_cgen_ifld_table[];
/* Attributes. */
extern const CGEN_ATTR_TABLE bpf_cgen_hardware_attr_table[];
extern const CGEN_ATTR_TABLE bpf_cgen_ifield_attr_table[];
extern const CGEN_ATTR_TABLE bpf_cgen_operand_attr_table[];
extern const CGEN_ATTR_TABLE bpf_cgen_insn_attr_table[];
/* Hardware decls. */
extern CGEN_KEYWORD bpf_cgen_opval_h_gpr;
extern const CGEN_HW_ENTRY bpf_cgen_hw_table[];
#ifdef __cplusplus
}
#endif
#endif /* BPF_CPU_H */

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/* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */
/* Disassembler interface for targets using CGEN. -*- C -*-
CGEN: Cpu tools GENerator
THIS FILE IS MACHINE GENERATED WITH CGEN.
- the resultant file is machine generated, cgen-dis.in isn't
Copyright (C) 1996-2019 Free Software Foundation, Inc.
This file is part of libopcodes.
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. */
/* ??? Eventually more and more of this stuff can go to cpu-independent files.
Keep that in mind. */
#include "sysdep.h"
#include <stdio.h>
#include "ansidecl.h"
#include "disassemble.h"
#include "bfd.h"
#include "symcat.h"
#include "libiberty.h"
#include "bpf-desc.h"
#include "bpf-opc.h"
#include "opintl.h"
/* Default text to print if an instruction isn't recognized. */
#define UNKNOWN_INSN_MSG _("*unknown*")
static void print_normal
(CGEN_CPU_DESC, void *, long, unsigned int, bfd_vma, int);
static void print_address
(CGEN_CPU_DESC, void *, bfd_vma, unsigned int, bfd_vma, int) ATTRIBUTE_UNUSED;
static void print_keyword
(CGEN_CPU_DESC, void *, CGEN_KEYWORD *, long, unsigned int) ATTRIBUTE_UNUSED;
static void print_insn_normal
(CGEN_CPU_DESC, void *, const CGEN_INSN *, CGEN_FIELDS *, bfd_vma, int);
static int print_insn
(CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, unsigned);
static int default_print_insn
(CGEN_CPU_DESC, bfd_vma, disassemble_info *) ATTRIBUTE_UNUSED;
static int read_insn
(CGEN_CPU_DESC, bfd_vma, disassemble_info *, bfd_byte *, int, CGEN_EXTRACT_INFO *,
unsigned long *);
/* -- disassembler routines inserted here. */
/* -- dis.c */
/* We need to customize the disassembler a bit:
- Use 8 bytes per line by default.
*/
#define CGEN_PRINT_INSN bpf_print_insn
static int
bpf_print_insn (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
{
bfd_byte buf[CGEN_MAX_INSN_SIZE];
int buflen;
int status;
info->bytes_per_chunk = 1;
info->bytes_per_line = 8;
/* Attempt to read the base part of the insn. */
buflen = cd->base_insn_bitsize / 8;
status = (*info->read_memory_func) (pc, buf, buflen, info);
/* Try again with the minimum part, if min < base. */
if (status != 0 && (cd->min_insn_bitsize < cd->base_insn_bitsize))
{
buflen = cd->min_insn_bitsize / 8;
status = (*info->read_memory_func) (pc, buf, buflen, info);
}
if (status != 0)
{
(*info->memory_error_func) (status, pc, info);
return -1;
}
return print_insn (cd, pc, info, buf, buflen);
}
/* Signed immediates should be printed in hexadecimal. */
static void
print_immediate (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
void *dis_info,
int64_t value,
unsigned int attrs ATTRIBUTE_UNUSED,
bfd_vma pc ATTRIBUTE_UNUSED,
int length ATTRIBUTE_UNUSED)
{
disassemble_info *info = (disassemble_info *) dis_info;
if (value <= 9)
(*info->fprintf_func) (info->stream, "%" PRId64, value);
else
(*info->fprintf_func) (info->stream, "%#" PRIx64, value);
/* This is to avoid -Wunused-function for print_normal. */
if (0)
print_normal (cd, dis_info, value, attrs, pc, length);
}
/* Endianness bit sizes should be printed in decimal. */
static void
print_endsize (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
void *dis_info,
unsigned long value,
unsigned int attrs ATTRIBUTE_UNUSED,
bfd_vma pc ATTRIBUTE_UNUSED,
int length ATTRIBUTE_UNUSED)
{
disassemble_info *info = (disassemble_info *) dis_info;
(*info->fprintf_func) (info->stream, "%lu", value);
}
/* -- */
void bpf_cgen_print_operand
(CGEN_CPU_DESC, int, PTR, CGEN_FIELDS *, void const *, bfd_vma, int);
/* Main entry point for printing operands.
XINFO is a `void *' and not a `disassemble_info *' to not put a requirement
of dis-asm.h on cgen.h.
This function is basically just a big switch statement. Earlier versions
used tables to look up the function to use, but
- if the table contains both assembler and disassembler functions then
the disassembler contains much of the assembler and vice-versa,
- there's a lot of inlining possibilities as things grow,
- using a switch statement avoids the function call overhead.
This function could be moved into `print_insn_normal', but keeping it
separate makes clear the interface between `print_insn_normal' and each of
the handlers. */
void
bpf_cgen_print_operand (CGEN_CPU_DESC cd,
int opindex,
void * xinfo,
CGEN_FIELDS *fields,
void const *attrs ATTRIBUTE_UNUSED,
bfd_vma pc,
int length)
{
disassemble_info *info = (disassemble_info *) xinfo;
switch (opindex)
{
case BPF_OPERAND_DISP16 :
print_normal (cd, info, fields->f_offset16, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
break;
case BPF_OPERAND_DISP32 :
print_normal (cd, info, fields->f_imm32, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_PCREL_ADDR), pc, length);
break;
case BPF_OPERAND_DSTBE :
print_keyword (cd, info, & bpf_cgen_opval_h_gpr, fields->f_dstbe, 0);
break;
case BPF_OPERAND_DSTLE :
print_keyword (cd, info, & bpf_cgen_opval_h_gpr, fields->f_dstle, 0);
break;
case BPF_OPERAND_ENDSIZE :
print_endsize (cd, info, fields->f_imm32, 0, pc, length);
break;
case BPF_OPERAND_IMM32 :
print_immediate (cd, info, fields->f_imm32, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
break;
case BPF_OPERAND_IMM64 :
print_immediate (cd, info, fields->f_imm64, 0|(1<<CGEN_OPERAND_SIGNED)|(1<<CGEN_OPERAND_VIRTUAL), pc, length);
break;
case BPF_OPERAND_OFFSET16 :
print_immediate (cd, info, fields->f_offset16, 0|(1<<CGEN_OPERAND_SIGNED), pc, length);
break;
case BPF_OPERAND_SRCBE :
print_keyword (cd, info, & bpf_cgen_opval_h_gpr, fields->f_srcbe, 0);
break;
case BPF_OPERAND_SRCLE :
print_keyword (cd, info, & bpf_cgen_opval_h_gpr, fields->f_srcle, 0);
break;
default :
/* xgettext:c-format */
opcodes_error_handler
(_("internal error: unrecognized field %d while printing insn"),
opindex);
abort ();
}
}
cgen_print_fn * const bpf_cgen_print_handlers[] =
{
print_insn_normal,
};
void
bpf_cgen_init_dis (CGEN_CPU_DESC cd)
{
bpf_cgen_init_opcode_table (cd);
bpf_cgen_init_ibld_table (cd);
cd->print_handlers = & bpf_cgen_print_handlers[0];
cd->print_operand = bpf_cgen_print_operand;
}
/* Default print handler. */
static void
print_normal (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
void *dis_info,
long value,
unsigned int attrs,
bfd_vma pc ATTRIBUTE_UNUSED,
int length ATTRIBUTE_UNUSED)
{
disassemble_info *info = (disassemble_info *) dis_info;
/* Print the operand as directed by the attributes. */
if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
; /* nothing to do */
else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
(*info->fprintf_func) (info->stream, "%ld", value);
else
(*info->fprintf_func) (info->stream, "0x%lx", value);
}
/* Default address handler. */
static void
print_address (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
void *dis_info,
bfd_vma value,
unsigned int attrs,
bfd_vma pc ATTRIBUTE_UNUSED,
int length ATTRIBUTE_UNUSED)
{
disassemble_info *info = (disassemble_info *) dis_info;
/* Print the operand as directed by the attributes. */
if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SEM_ONLY))
; /* Nothing to do. */
else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_PCREL_ADDR))
(*info->print_address_func) (value, info);
else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_ABS_ADDR))
(*info->print_address_func) (value, info);
else if (CGEN_BOOL_ATTR (attrs, CGEN_OPERAND_SIGNED))
(*info->fprintf_func) (info->stream, "%ld", (long) value);
else
(*info->fprintf_func) (info->stream, "0x%lx", (long) value);
}
/* Keyword print handler. */
static void
print_keyword (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
void *dis_info,
CGEN_KEYWORD *keyword_table,
long value,
unsigned int attrs ATTRIBUTE_UNUSED)
{
disassemble_info *info = (disassemble_info *) dis_info;
const CGEN_KEYWORD_ENTRY *ke;
ke = cgen_keyword_lookup_value (keyword_table, value);
if (ke != NULL)
(*info->fprintf_func) (info->stream, "%s", ke->name);
else
(*info->fprintf_func) (info->stream, "???");
}
/* Default insn printer.
DIS_INFO is defined as `void *' so the disassembler needn't know anything
about disassemble_info. */
static void
print_insn_normal (CGEN_CPU_DESC cd,
void *dis_info,
const CGEN_INSN *insn,
CGEN_FIELDS *fields,
bfd_vma pc,
int length)
{
const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
disassemble_info *info = (disassemble_info *) dis_info;
const CGEN_SYNTAX_CHAR_TYPE *syn;
CGEN_INIT_PRINT (cd);
for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
{
if (CGEN_SYNTAX_MNEMONIC_P (*syn))
{
(*info->fprintf_func) (info->stream, "%s", CGEN_INSN_MNEMONIC (insn));
continue;
}
if (CGEN_SYNTAX_CHAR_P (*syn))
{
(*info->fprintf_func) (info->stream, "%c", CGEN_SYNTAX_CHAR (*syn));
continue;
}
/* We have an operand. */
bpf_cgen_print_operand (cd, CGEN_SYNTAX_FIELD (*syn), info,
fields, CGEN_INSN_ATTRS (insn), pc, length);
}
}
/* Subroutine of print_insn. Reads an insn into the given buffers and updates
the extract info.
Returns 0 if all is well, non-zero otherwise. */
static int
read_insn (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
bfd_vma pc,
disassemble_info *info,
bfd_byte *buf,
int buflen,
CGEN_EXTRACT_INFO *ex_info,
unsigned long *insn_value)
{
int status = (*info->read_memory_func) (pc, buf, buflen, info);
if (status != 0)
{
(*info->memory_error_func) (status, pc, info);
return -1;
}
ex_info->dis_info = info;
ex_info->valid = (1 << buflen) - 1;
ex_info->insn_bytes = buf;
*insn_value = bfd_get_bits (buf, buflen * 8, info->endian == BFD_ENDIAN_BIG);
return 0;
}
/* Utility to print an insn.
BUF is the base part of the insn, target byte order, BUFLEN bytes long.
The result is the size of the insn in bytes or zero for an unknown insn
or -1 if an error occurs fetching data (memory_error_func will have
been called). */
static int
print_insn (CGEN_CPU_DESC cd,
bfd_vma pc,
disassemble_info *info,
bfd_byte *buf,
unsigned int buflen)
{
CGEN_INSN_INT insn_value;
const CGEN_INSN_LIST *insn_list;
CGEN_EXTRACT_INFO ex_info;
int basesize;
/* Extract base part of instruction, just in case CGEN_DIS_* uses it. */
basesize = cd->base_insn_bitsize < buflen * 8 ?
cd->base_insn_bitsize : buflen * 8;
insn_value = cgen_get_insn_value (cd, buf, basesize);
/* Fill in ex_info fields like read_insn would. Don't actually call
read_insn, since the incoming buffer is already read (and possibly
modified a la m32r). */
ex_info.valid = (1 << buflen) - 1;
ex_info.dis_info = info;
ex_info.insn_bytes = buf;
/* The instructions are stored in hash lists.
Pick the first one and keep trying until we find the right one. */
insn_list = CGEN_DIS_LOOKUP_INSN (cd, (char *) buf, insn_value);
while (insn_list != NULL)
{
const CGEN_INSN *insn = insn_list->insn;
CGEN_FIELDS fields;
int length;
unsigned long insn_value_cropped;
#ifdef CGEN_VALIDATE_INSN_SUPPORTED
/* Not needed as insn shouldn't be in hash lists if not supported. */
/* Supported by this cpu? */
if (! bpf_cgen_insn_supported (cd, insn))
{
insn_list = CGEN_DIS_NEXT_INSN (insn_list);
continue;
}
#endif
/* Basic bit mask must be correct. */
/* ??? May wish to allow target to defer this check until the extract
handler. */
/* Base size may exceed this instruction's size. Extract the
relevant part from the buffer. */
if ((unsigned) (CGEN_INSN_BITSIZE (insn) / 8) < buflen &&
(unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
insn_value_cropped = bfd_get_bits (buf, CGEN_INSN_BITSIZE (insn),
info->endian == BFD_ENDIAN_BIG);
else
insn_value_cropped = insn_value;
if ((insn_value_cropped & CGEN_INSN_BASE_MASK (insn))
== CGEN_INSN_BASE_VALUE (insn))
{
/* Printing is handled in two passes. The first pass parses the
machine insn and extracts the fields. The second pass prints
them. */
/* Make sure the entire insn is loaded into insn_value, if it
can fit. */
if (((unsigned) CGEN_INSN_BITSIZE (insn) > cd->base_insn_bitsize) &&
(unsigned) (CGEN_INSN_BITSIZE (insn) / 8) <= sizeof (unsigned long))
{
unsigned long full_insn_value;
int rc = read_insn (cd, pc, info, buf,
CGEN_INSN_BITSIZE (insn) / 8,
& ex_info, & full_insn_value);
if (rc != 0)
return rc;
length = CGEN_EXTRACT_FN (cd, insn)
(cd, insn, &ex_info, full_insn_value, &fields, pc);
}
else
length = CGEN_EXTRACT_FN (cd, insn)
(cd, insn, &ex_info, insn_value_cropped, &fields, pc);
/* Length < 0 -> error. */
if (length < 0)
return length;
if (length > 0)
{
CGEN_PRINT_FN (cd, insn) (cd, info, insn, &fields, pc, length);
/* Length is in bits, result is in bytes. */
return length / 8;
}
}
insn_list = CGEN_DIS_NEXT_INSN (insn_list);
}
return 0;
}
/* Default value for CGEN_PRINT_INSN.
The result is the size of the insn in bytes or zero for an unknown insn
or -1 if an error occured fetching bytes. */
#ifndef CGEN_PRINT_INSN
#define CGEN_PRINT_INSN default_print_insn
#endif
static int
default_print_insn (CGEN_CPU_DESC cd, bfd_vma pc, disassemble_info *info)
{
bfd_byte buf[CGEN_MAX_INSN_SIZE];
int buflen;
int status;
/* Attempt to read the base part of the insn. */
buflen = cd->base_insn_bitsize / 8;
status = (*info->read_memory_func) (pc, buf, buflen, info);
/* Try again with the minimum part, if min < base. */
if (status != 0 && (cd->min_insn_bitsize < cd->base_insn_bitsize))
{
buflen = cd->min_insn_bitsize / 8;
status = (*info->read_memory_func) (pc, buf, buflen, info);
}
if (status != 0)
{
(*info->memory_error_func) (status, pc, info);
return -1;
}
return print_insn (cd, pc, info, buf, buflen);
}
/* Main entry point.
Print one instruction from PC on INFO->STREAM.
Return the size of the instruction (in bytes). */
typedef struct cpu_desc_list
{
struct cpu_desc_list *next;
CGEN_BITSET *isa;
int mach;
int endian;
CGEN_CPU_DESC cd;
} cpu_desc_list;
int
print_insn_bpf (bfd_vma pc, disassemble_info *info)
{
static cpu_desc_list *cd_list = 0;
cpu_desc_list *cl = 0;
static CGEN_CPU_DESC cd = 0;
static CGEN_BITSET *prev_isa;
static int prev_mach;
static int prev_endian;
int length;
CGEN_BITSET *isa;
int mach;
int endian = (info->endian == BFD_ENDIAN_BIG
? CGEN_ENDIAN_BIG
: CGEN_ENDIAN_LITTLE);
enum bfd_architecture arch;
/* ??? gdb will set mach but leave the architecture as "unknown" */
#ifndef CGEN_BFD_ARCH
#define CGEN_BFD_ARCH bfd_arch_bpf
#endif
arch = info->arch;
if (arch == bfd_arch_unknown)
arch = CGEN_BFD_ARCH;
/* There's no standard way to compute the machine or isa number
so we leave it to the target. */
#ifdef CGEN_COMPUTE_MACH
mach = CGEN_COMPUTE_MACH (info);
#else
mach = info->mach;
#endif
#ifdef CGEN_COMPUTE_ISA
{
static CGEN_BITSET *permanent_isa;
if (!permanent_isa)
permanent_isa = cgen_bitset_create (MAX_ISAS);
isa = permanent_isa;
cgen_bitset_clear (isa);
cgen_bitset_add (isa, CGEN_COMPUTE_ISA (info));
}
#else
isa = info->insn_sets;
#endif
/* If we've switched cpu's, try to find a handle we've used before */
if (cd
&& (cgen_bitset_compare (isa, prev_isa) != 0
|| mach != prev_mach
|| endian != prev_endian))
{
cd = 0;
for (cl = cd_list; cl; cl = cl->next)
{
if (cgen_bitset_compare (cl->isa, isa) == 0 &&
cl->mach == mach &&
cl->endian == endian)
{
cd = cl->cd;
prev_isa = cd->isas;
break;
}
}
}
/* If we haven't initialized yet, initialize the opcode table. */
if (! cd)
{
const bfd_arch_info_type *arch_type = bfd_lookup_arch (arch, mach);
const char *mach_name;
if (!arch_type)
abort ();
mach_name = arch_type->printable_name;
prev_isa = cgen_bitset_copy (isa);
prev_mach = mach;
prev_endian = endian;
cd = bpf_cgen_cpu_open (CGEN_CPU_OPEN_ISAS, prev_isa,
CGEN_CPU_OPEN_BFDMACH, mach_name,
CGEN_CPU_OPEN_ENDIAN, prev_endian,
CGEN_CPU_OPEN_END);
if (!cd)
abort ();
/* Save this away for future reference. */
cl = xmalloc (sizeof (struct cpu_desc_list));
cl->cd = cd;
cl->isa = prev_isa;
cl->mach = mach;
cl->endian = endian;
cl->next = cd_list;
cd_list = cl;
bpf_cgen_init_dis (cd);
}
/* We try to have as much common code as possible.
But at this point some targets need to take over. */
/* ??? Some targets may need a hook elsewhere. Try to avoid this,
but if not possible try to move this hook elsewhere rather than
have two hooks. */
length = CGEN_PRINT_INSN (cd, pc, info);
if (length > 0)
return length;
if (length < 0)
return -1;
(*info->fprintf_func) (info->stream, UNKNOWN_INSN_MSG);
return cd->default_insn_bitsize / 8;
}

956
opcodes/bpf-ibld.c Normal file
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@ -0,0 +1,956 @@
/* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */
/* Instruction building/extraction support for bpf. -*- C -*-
THIS FILE IS MACHINE GENERATED WITH CGEN: Cpu tools GENerator.
- the resultant file is machine generated, cgen-ibld.in isn't
Copyright (C) 1996-2019 Free Software Foundation, Inc.
This file is part of libopcodes.
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. */
/* ??? Eventually more and more of this stuff can go to cpu-independent files.
Keep that in mind. */
#include "sysdep.h"
#include <stdio.h>
#include "ansidecl.h"
#include "dis-asm.h"
#include "bfd.h"
#include "symcat.h"
#include "bpf-desc.h"
#include "bpf-opc.h"
#include "cgen/basic-modes.h"
#include "opintl.h"
#include "safe-ctype.h"
#undef min
#define min(a,b) ((a) < (b) ? (a) : (b))
#undef max
#define max(a,b) ((a) > (b) ? (a) : (b))
/* Used by the ifield rtx function. */
#define FLD(f) (fields->f)
static const char * insert_normal
(CGEN_CPU_DESC, long, unsigned int, unsigned int, unsigned int,
unsigned int, unsigned int, unsigned int, CGEN_INSN_BYTES_PTR);
static const char * insert_insn_normal
(CGEN_CPU_DESC, const CGEN_INSN *,
CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma);
static int extract_normal
(CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, CGEN_INSN_INT,
unsigned int, unsigned int, unsigned int, unsigned int,
unsigned int, unsigned int, bfd_vma, long *);
static int extract_insn_normal
(CGEN_CPU_DESC, const CGEN_INSN *, CGEN_EXTRACT_INFO *,
CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma);
#if CGEN_INT_INSN_P
static void put_insn_int_value
(CGEN_CPU_DESC, CGEN_INSN_BYTES_PTR, int, int, CGEN_INSN_INT);
#endif
#if ! CGEN_INT_INSN_P
static CGEN_INLINE void insert_1
(CGEN_CPU_DESC, unsigned long, int, int, int, unsigned char *);
static CGEN_INLINE int fill_cache
(CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, bfd_vma);
static CGEN_INLINE long extract_1
(CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, int, unsigned char *, bfd_vma);
#endif
/* Operand insertion. */
#if ! CGEN_INT_INSN_P
/* Subroutine of insert_normal. */
static CGEN_INLINE void
insert_1 (CGEN_CPU_DESC cd,
unsigned long value,
int start,
int length,
int word_length,
unsigned char *bufp)
{
unsigned long x,mask;
int shift;
x = cgen_get_insn_value (cd, bufp, word_length);
/* Written this way to avoid undefined behaviour. */
mask = (((1L << (length - 1)) - 1) << 1) | 1;
if (CGEN_INSN_LSB0_P)
shift = (start + 1) - length;
else
shift = (word_length - (start + length));
x = (x & ~(mask << shift)) | ((value & mask) << shift);
cgen_put_insn_value (cd, bufp, word_length, (bfd_vma) x);
}
#endif /* ! CGEN_INT_INSN_P */
/* Default insertion routine.
ATTRS is a mask of the boolean attributes.
WORD_OFFSET is the offset in bits from the start of the insn of the value.
WORD_LENGTH is the length of the word in bits in which the value resides.
START is the starting bit number in the word, architecture origin.
LENGTH is the length of VALUE in bits.
TOTAL_LENGTH is the total length of the insn in bits.
The result is an error message or NULL if success. */
/* ??? This duplicates functionality with bfd's howto table and
bfd_install_relocation. */
/* ??? This doesn't handle bfd_vma's. Create another function when
necessary. */
static const char *
insert_normal (CGEN_CPU_DESC cd,
long value,
unsigned int attrs,
unsigned int word_offset,
unsigned int start,
unsigned int length,
unsigned int word_length,
unsigned int total_length,
CGEN_INSN_BYTES_PTR buffer)
{
static char errbuf[100];
/* Written this way to avoid undefined behaviour. */
unsigned long mask = (((1L << (length - 1)) - 1) << 1) | 1;
/* If LENGTH is zero, this operand doesn't contribute to the value. */
if (length == 0)
return NULL;
if (word_length > 8 * sizeof (CGEN_INSN_INT))
abort ();
/* For architectures with insns smaller than the base-insn-bitsize,
word_length may be too big. */
if (cd->min_insn_bitsize < cd->base_insn_bitsize)
{
if (word_offset == 0
&& word_length > total_length)
word_length = total_length;
}
/* Ensure VALUE will fit. */
if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGN_OPT))
{
long minval = - (1L << (length - 1));
unsigned long maxval = mask;
if ((value > 0 && (unsigned long) value > maxval)
|| value < minval)
{
/* xgettext:c-format */
sprintf (errbuf,
_("operand out of range (%ld not between %ld and %lu)"),
value, minval, maxval);
return errbuf;
}
}
else if (! CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED))
{
unsigned long maxval = mask;
unsigned long val = (unsigned long) value;
/* For hosts with a word size > 32 check to see if value has been sign
extended beyond 32 bits. If so then ignore these higher sign bits
as the user is attempting to store a 32-bit signed value into an
unsigned 32-bit field which is allowed. */
if (sizeof (unsigned long) > 4 && ((value >> 32) == -1))
val &= 0xFFFFFFFF;
if (val > maxval)
{
/* xgettext:c-format */
sprintf (errbuf,
_("operand out of range (0x%lx not between 0 and 0x%lx)"),
val, maxval);
return errbuf;
}
}
else
{
if (! cgen_signed_overflow_ok_p (cd))
{
long minval = - (1L << (length - 1));
long maxval = (1L << (length - 1)) - 1;
if (value < minval || value > maxval)
{
sprintf
/* xgettext:c-format */
(errbuf, _("operand out of range (%ld not between %ld and %ld)"),
value, minval, maxval);
return errbuf;
}
}
}
#if CGEN_INT_INSN_P
{
int shift_within_word, shift_to_word, shift;
/* How to shift the value to BIT0 of the word. */
shift_to_word = total_length - (word_offset + word_length);
/* How to shift the value to the field within the word. */
if (CGEN_INSN_LSB0_P)
shift_within_word = start + 1 - length;
else
shift_within_word = word_length - start - length;
/* The total SHIFT, then mask in the value. */
shift = shift_to_word + shift_within_word;
*buffer = (*buffer & ~(mask << shift)) | ((value & mask) << shift);
}
#else /* ! CGEN_INT_INSN_P */
{
unsigned char *bufp = (unsigned char *) buffer + word_offset / 8;
insert_1 (cd, value, start, length, word_length, bufp);
}
#endif /* ! CGEN_INT_INSN_P */
return NULL;
}
/* Default insn builder (insert handler).
The instruction is recorded in CGEN_INT_INSN_P byte order (meaning
that if CGEN_INSN_BYTES_PTR is an int * and thus, the value is
recorded in host byte order, otherwise BUFFER is an array of bytes
and the value is recorded in target byte order).
The result is an error message or NULL if success. */
static const char *
insert_insn_normal (CGEN_CPU_DESC cd,
const CGEN_INSN * insn,
CGEN_FIELDS * fields,
CGEN_INSN_BYTES_PTR buffer,
bfd_vma pc)
{
const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
unsigned long value;
const CGEN_SYNTAX_CHAR_TYPE * syn;
CGEN_INIT_INSERT (cd);
value = CGEN_INSN_BASE_VALUE (insn);
/* If we're recording insns as numbers (rather than a string of bytes),
target byte order handling is deferred until later. */
#if CGEN_INT_INSN_P
put_insn_int_value (cd, buffer, cd->base_insn_bitsize,
CGEN_FIELDS_BITSIZE (fields), value);
#else
cgen_put_insn_value (cd, buffer, min ((unsigned) cd->base_insn_bitsize,
(unsigned) CGEN_FIELDS_BITSIZE (fields)),
value);
#endif /* ! CGEN_INT_INSN_P */
/* ??? It would be better to scan the format's fields.
Still need to be able to insert a value based on the operand though;
e.g. storing a branch displacement that got resolved later.
Needs more thought first. */
for (syn = CGEN_SYNTAX_STRING (syntax); * syn; ++ syn)
{
const char *errmsg;
if (CGEN_SYNTAX_CHAR_P (* syn))
continue;
errmsg = (* cd->insert_operand) (cd, CGEN_SYNTAX_FIELD (*syn),
fields, buffer, pc);
if (errmsg)
return errmsg;
}
return NULL;
}
#if CGEN_INT_INSN_P
/* Cover function to store an insn value into an integral insn. Must go here
because it needs <prefix>-desc.h for CGEN_INT_INSN_P. */
static void
put_insn_int_value (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
CGEN_INSN_BYTES_PTR buf,
int length,
int insn_length,
CGEN_INSN_INT value)
{
/* For architectures with insns smaller than the base-insn-bitsize,
length may be too big. */
if (length > insn_length)
*buf = value;
else
{
int shift = insn_length - length;
/* Written this way to avoid undefined behaviour. */
CGEN_INSN_INT mask = (((1L << (length - 1)) - 1) << 1) | 1;
*buf = (*buf & ~(mask << shift)) | ((value & mask) << shift);
}
}
#endif
/* Operand extraction. */
#if ! CGEN_INT_INSN_P
/* Subroutine of extract_normal.
Ensure sufficient bytes are cached in EX_INFO.
OFFSET is the offset in bytes from the start of the insn of the value.
BYTES is the length of the needed value.
Returns 1 for success, 0 for failure. */
static CGEN_INLINE int
fill_cache (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
CGEN_EXTRACT_INFO *ex_info,
int offset,
int bytes,
bfd_vma pc)
{
/* It's doubtful that the middle part has already been fetched so
we don't optimize that case. kiss. */
unsigned int mask;
disassemble_info *info = (disassemble_info *) ex_info->dis_info;
/* First do a quick check. */
mask = (1 << bytes) - 1;
if (((ex_info->valid >> offset) & mask) == mask)
return 1;
/* Search for the first byte we need to read. */
for (mask = 1 << offset; bytes > 0; --bytes, ++offset, mask <<= 1)
if (! (mask & ex_info->valid))
break;
if (bytes)
{
int status;
pc += offset;
status = (*info->read_memory_func)
(pc, ex_info->insn_bytes + offset, bytes, info);
if (status != 0)
{
(*info->memory_error_func) (status, pc, info);
return 0;
}
ex_info->valid |= ((1 << bytes) - 1) << offset;
}
return 1;
}
/* Subroutine of extract_normal. */
static CGEN_INLINE long
extract_1 (CGEN_CPU_DESC cd,
CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
int start,
int length,
int word_length,
unsigned char *bufp,
bfd_vma pc ATTRIBUTE_UNUSED)
{
unsigned long x;
int shift;
x = cgen_get_insn_value (cd, bufp, word_length);
if (CGEN_INSN_LSB0_P)
shift = (start + 1) - length;
else
shift = (word_length - (start + length));
return x >> shift;
}
#endif /* ! CGEN_INT_INSN_P */
/* Default extraction routine.
INSN_VALUE is the first base_insn_bitsize bits of the insn in host order,
or sometimes less for cases like the m32r where the base insn size is 32
but some insns are 16 bits.
ATTRS is a mask of the boolean attributes. We only need `SIGNED',
but for generality we take a bitmask of all of them.
WORD_OFFSET is the offset in bits from the start of the insn of the value.
WORD_LENGTH is the length of the word in bits in which the value resides.
START is the starting bit number in the word, architecture origin.
LENGTH is the length of VALUE in bits.
TOTAL_LENGTH is the total length of the insn in bits.
Returns 1 for success, 0 for failure. */
/* ??? The return code isn't properly used. wip. */
/* ??? This doesn't handle bfd_vma's. Create another function when
necessary. */
static int
extract_normal (CGEN_CPU_DESC cd,
#if ! CGEN_INT_INSN_P
CGEN_EXTRACT_INFO *ex_info,
#else
CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
#endif
CGEN_INSN_INT insn_value,
unsigned int attrs,
unsigned int word_offset,
unsigned int start,
unsigned int length,
unsigned int word_length,
unsigned int total_length,
#if ! CGEN_INT_INSN_P
bfd_vma pc,
#else
bfd_vma pc ATTRIBUTE_UNUSED,
#endif
long *valuep)
{
long value, mask;
/* If LENGTH is zero, this operand doesn't contribute to the value
so give it a standard value of zero. */
if (length == 0)
{
*valuep = 0;
return 1;
}
if (word_length > 8 * sizeof (CGEN_INSN_INT))
abort ();
/* For architectures with insns smaller than the insn-base-bitsize,
word_length may be too big. */
if (cd->min_insn_bitsize < cd->base_insn_bitsize)
{
if (word_offset + word_length > total_length)
word_length = total_length - word_offset;
}
/* Does the value reside in INSN_VALUE, and at the right alignment? */
if (CGEN_INT_INSN_P || (word_offset == 0 && word_length == total_length))
{
if (CGEN_INSN_LSB0_P)
value = insn_value >> ((word_offset + start + 1) - length);
else
value = insn_value >> (total_length - ( word_offset + start + length));
}
#if ! CGEN_INT_INSN_P
else
{
unsigned char *bufp = ex_info->insn_bytes + word_offset / 8;
if (word_length > 8 * sizeof (CGEN_INSN_INT))
abort ();
if (fill_cache (cd, ex_info, word_offset / 8, word_length / 8, pc) == 0)
return 0;
value = extract_1 (cd, ex_info, start, length, word_length, bufp, pc);
}
#endif /* ! CGEN_INT_INSN_P */
/* Written this way to avoid undefined behaviour. */
mask = (((1L << (length - 1)) - 1) << 1) | 1;
value &= mask;
/* sign extend? */
if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED)
&& (value & (1L << (length - 1))))
value |= ~mask;
*valuep = value;
return 1;
}
/* Default insn extractor.
INSN_VALUE is the first base_insn_bitsize bits, translated to host order.
The extracted fields are stored in FIELDS.
EX_INFO is used to handle reading variable length insns.
Return the length of the insn in bits, or 0 if no match,
or -1 if an error occurs fetching data (memory_error_func will have
been called). */
static int
extract_insn_normal (CGEN_CPU_DESC cd,
const CGEN_INSN *insn,
CGEN_EXTRACT_INFO *ex_info,
CGEN_INSN_INT insn_value,
CGEN_FIELDS *fields,
bfd_vma pc)
{
const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
const CGEN_SYNTAX_CHAR_TYPE *syn;
CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
CGEN_INIT_EXTRACT (cd);
for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
{
int length;
if (CGEN_SYNTAX_CHAR_P (*syn))
continue;
length = (* cd->extract_operand) (cd, CGEN_SYNTAX_FIELD (*syn),
ex_info, insn_value, fields, pc);
if (length <= 0)
return length;
}
/* We recognized and successfully extracted this insn. */
return CGEN_INSN_BITSIZE (insn);
}
/* Machine generated code added here. */
const char * bpf_cgen_insert_operand
(CGEN_CPU_DESC, int, CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma);
/* Main entry point for operand insertion.
This function is basically just a big switch statement. Earlier versions
used tables to look up the function to use, but
- if the table contains both assembler and disassembler functions then
the disassembler contains much of the assembler and vice-versa,
- there's a lot of inlining possibilities as things grow,
- using a switch statement avoids the function call overhead.
This function could be moved into `parse_insn_normal', but keeping it
separate makes clear the interface between `parse_insn_normal' and each of
the handlers. It's also needed by GAS to insert operands that couldn't be
resolved during parsing. */
const char *
bpf_cgen_insert_operand (CGEN_CPU_DESC cd,
int opindex,
CGEN_FIELDS * fields,
CGEN_INSN_BYTES_PTR buffer,
bfd_vma pc ATTRIBUTE_UNUSED)
{
const char * errmsg = NULL;
unsigned int total_length = CGEN_FIELDS_BITSIZE (fields);
switch (opindex)
{
case BPF_OPERAND_DISP16 :
errmsg = insert_normal (cd, fields->f_offset16, 0|(1<<CGEN_IFLD_SIGNED), 16, 15, 16, 16, total_length, buffer);
break;
case BPF_OPERAND_DISP32 :
errmsg = insert_normal (cd, fields->f_imm32, 0|(1<<CGEN_IFLD_SIGNED), 32, 31, 32, 32, total_length, buffer);
break;
case BPF_OPERAND_DSTBE :
errmsg = insert_normal (cd, fields->f_dstbe, 0, 8, 7, 4, 8, total_length, buffer);
break;
case BPF_OPERAND_DSTLE :
errmsg = insert_normal (cd, fields->f_dstle, 0, 8, 3, 4, 8, total_length, buffer);
break;
case BPF_OPERAND_ENDSIZE :
errmsg = insert_normal (cd, fields->f_imm32, 0|(1<<CGEN_IFLD_SIGNED), 32, 31, 32, 32, total_length, buffer);
break;
case BPF_OPERAND_IMM32 :
errmsg = insert_normal (cd, fields->f_imm32, 0|(1<<CGEN_IFLD_SIGNED), 32, 31, 32, 32, total_length, buffer);
break;
case BPF_OPERAND_IMM64 :
{
{
FLD (f_imm64_b) = 0;
FLD (f_imm64_c) = ((UDI) (FLD (f_imm64)) >> (32));
FLD (f_imm64_a) = ((FLD (f_imm64)) & (MAKEDI (0, 0xffffffff)));
}
errmsg = insert_normal (cd, fields->f_imm64_a, 0, 32, 31, 32, 32, total_length, buffer);
if (errmsg)
break;
errmsg = insert_normal (cd, fields->f_imm64_b, 0, 64, 31, 32, 32, total_length, buffer);
if (errmsg)
break;
errmsg = insert_normal (cd, fields->f_imm64_c, 0, 96, 31, 32, 32, total_length, buffer);
if (errmsg)
break;
}
break;
case BPF_OPERAND_OFFSET16 :
errmsg = insert_normal (cd, fields->f_offset16, 0|(1<<CGEN_IFLD_SIGNED), 16, 15, 16, 16, total_length, buffer);
break;
case BPF_OPERAND_SRCBE :
errmsg = insert_normal (cd, fields->f_srcbe, 0, 8, 3, 4, 8, total_length, buffer);
break;
case BPF_OPERAND_SRCLE :
errmsg = insert_normal (cd, fields->f_srcle, 0, 8, 7, 4, 8, total_length, buffer);
break;
default :
/* xgettext:c-format */
opcodes_error_handler
(_("internal error: unrecognized field %d while building insn"),
opindex);
abort ();
}
return errmsg;
}
int bpf_cgen_extract_operand
(CGEN_CPU_DESC, int, CGEN_EXTRACT_INFO *, CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma);
/* Main entry point for operand extraction.
The result is <= 0 for error, >0 for success.
??? Actual values aren't well defined right now.
This function is basically just a big switch statement. Earlier versions
used tables to look up the function to use, but
- if the table contains both assembler and disassembler functions then
the disassembler contains much of the assembler and vice-versa,
- there's a lot of inlining possibilities as things grow,
- using a switch statement avoids the function call overhead.
This function could be moved into `print_insn_normal', but keeping it
separate makes clear the interface between `print_insn_normal' and each of
the handlers. */
int
bpf_cgen_extract_operand (CGEN_CPU_DESC cd,
int opindex,
CGEN_EXTRACT_INFO *ex_info,
CGEN_INSN_INT insn_value,
CGEN_FIELDS * fields,
bfd_vma pc)
{
/* Assume success (for those operands that are nops). */
int length = 1;
unsigned int total_length = CGEN_FIELDS_BITSIZE (fields);
switch (opindex)
{
case BPF_OPERAND_DISP16 :
length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 16, 15, 16, 16, total_length, pc, & fields->f_offset16);
break;
case BPF_OPERAND_DISP32 :
length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 32, 31, 32, 32, total_length, pc, & fields->f_imm32);
break;
case BPF_OPERAND_DSTBE :
length = extract_normal (cd, ex_info, insn_value, 0, 8, 7, 4, 8, total_length, pc, & fields->f_dstbe);
break;
case BPF_OPERAND_DSTLE :
length = extract_normal (cd, ex_info, insn_value, 0, 8, 3, 4, 8, total_length, pc, & fields->f_dstle);
break;
case BPF_OPERAND_ENDSIZE :
length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 32, 31, 32, 32, total_length, pc, & fields->f_imm32);
break;
case BPF_OPERAND_IMM32 :
length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 32, 31, 32, 32, total_length, pc, & fields->f_imm32);
break;
case BPF_OPERAND_IMM64 :
{
length = extract_normal (cd, ex_info, insn_value, 0, 32, 31, 32, 32, total_length, pc, & fields->f_imm64_a);
if (length <= 0) break;
length = extract_normal (cd, ex_info, insn_value, 0, 64, 31, 32, 32, total_length, pc, & fields->f_imm64_b);
if (length <= 0) break;
length = extract_normal (cd, ex_info, insn_value, 0, 96, 31, 32, 32, total_length, pc, & fields->f_imm64_c);
if (length <= 0) break;
{
FLD (f_imm64) = ((((((DI) (UINT) (FLD (f_imm64_c)))) << (32))) | (((DI) (UINT) (FLD (f_imm64_a)))));
}
}
break;
case BPF_OPERAND_OFFSET16 :
length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 16, 15, 16, 16, total_length, pc, & fields->f_offset16);
break;
case BPF_OPERAND_SRCBE :
length = extract_normal (cd, ex_info, insn_value, 0, 8, 3, 4, 8, total_length, pc, & fields->f_srcbe);
break;
case BPF_OPERAND_SRCLE :
length = extract_normal (cd, ex_info, insn_value, 0, 8, 7, 4, 8, total_length, pc, & fields->f_srcle);
break;
default :
/* xgettext:c-format */
opcodes_error_handler
(_("internal error: unrecognized field %d while decoding insn"),
opindex);
abort ();
}
return length;
}
cgen_insert_fn * const bpf_cgen_insert_handlers[] =
{
insert_insn_normal,
};
cgen_extract_fn * const bpf_cgen_extract_handlers[] =
{
extract_insn_normal,
};
int bpf_cgen_get_int_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *);
bfd_vma bpf_cgen_get_vma_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *);
/* Getting values from cgen_fields is handled by a collection of functions.
They are distinguished by the type of the VALUE argument they return.
TODO: floating point, inlining support, remove cases where result type
not appropriate. */
int
bpf_cgen_get_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
int opindex,
const CGEN_FIELDS * fields)
{
int value;
switch (opindex)
{
case BPF_OPERAND_DISP16 :
value = fields->f_offset16;
break;
case BPF_OPERAND_DISP32 :
value = fields->f_imm32;
break;
case BPF_OPERAND_DSTBE :
value = fields->f_dstbe;
break;
case BPF_OPERAND_DSTLE :
value = fields->f_dstle;
break;
case BPF_OPERAND_ENDSIZE :
value = fields->f_imm32;
break;
case BPF_OPERAND_IMM32 :
value = fields->f_imm32;
break;
case BPF_OPERAND_IMM64 :
value = fields->f_imm64;
break;
case BPF_OPERAND_OFFSET16 :
value = fields->f_offset16;
break;
case BPF_OPERAND_SRCBE :
value = fields->f_srcbe;
break;
case BPF_OPERAND_SRCLE :
value = fields->f_srcle;
break;
default :
/* xgettext:c-format */
opcodes_error_handler
(_("internal error: unrecognized field %d while getting int operand"),
opindex);
abort ();
}
return value;
}
bfd_vma
bpf_cgen_get_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
int opindex,
const CGEN_FIELDS * fields)
{
bfd_vma value;
switch (opindex)
{
case BPF_OPERAND_DISP16 :
value = fields->f_offset16;
break;
case BPF_OPERAND_DISP32 :
value = fields->f_imm32;
break;
case BPF_OPERAND_DSTBE :
value = fields->f_dstbe;
break;
case BPF_OPERAND_DSTLE :
value = fields->f_dstle;
break;
case BPF_OPERAND_ENDSIZE :
value = fields->f_imm32;
break;
case BPF_OPERAND_IMM32 :
value = fields->f_imm32;
break;
case BPF_OPERAND_IMM64 :
value = fields->f_imm64;
break;
case BPF_OPERAND_OFFSET16 :
value = fields->f_offset16;
break;
case BPF_OPERAND_SRCBE :
value = fields->f_srcbe;
break;
case BPF_OPERAND_SRCLE :
value = fields->f_srcle;
break;
default :
/* xgettext:c-format */
opcodes_error_handler
(_("internal error: unrecognized field %d while getting vma operand"),
opindex);
abort ();
}
return value;
}
void bpf_cgen_set_int_operand (CGEN_CPU_DESC, int, CGEN_FIELDS *, int);
void bpf_cgen_set_vma_operand (CGEN_CPU_DESC, int, CGEN_FIELDS *, bfd_vma);
/* Stuffing values in cgen_fields is handled by a collection of functions.
They are distinguished by the type of the VALUE argument they accept.
TODO: floating point, inlining support, remove cases where argument type
not appropriate. */
void
bpf_cgen_set_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
int opindex,
CGEN_FIELDS * fields,
int value)
{
switch (opindex)
{
case BPF_OPERAND_DISP16 :
fields->f_offset16 = value;
break;
case BPF_OPERAND_DISP32 :
fields->f_imm32 = value;
break;
case BPF_OPERAND_DSTBE :
fields->f_dstbe = value;
break;
case BPF_OPERAND_DSTLE :
fields->f_dstle = value;
break;
case BPF_OPERAND_ENDSIZE :
fields->f_imm32 = value;
break;
case BPF_OPERAND_IMM32 :
fields->f_imm32 = value;
break;
case BPF_OPERAND_IMM64 :
fields->f_imm64 = value;
break;
case BPF_OPERAND_OFFSET16 :
fields->f_offset16 = value;
break;
case BPF_OPERAND_SRCBE :
fields->f_srcbe = value;
break;
case BPF_OPERAND_SRCLE :
fields->f_srcle = value;
break;
default :
/* xgettext:c-format */
opcodes_error_handler
(_("internal error: unrecognized field %d while setting int operand"),
opindex);
abort ();
}
}
void
bpf_cgen_set_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
int opindex,
CGEN_FIELDS * fields,
bfd_vma value)
{
switch (opindex)
{
case BPF_OPERAND_DISP16 :
fields->f_offset16 = value;
break;
case BPF_OPERAND_DISP32 :
fields->f_imm32 = value;
break;
case BPF_OPERAND_DSTBE :
fields->f_dstbe = value;
break;
case BPF_OPERAND_DSTLE :
fields->f_dstle = value;
break;
case BPF_OPERAND_ENDSIZE :
fields->f_imm32 = value;
break;
case BPF_OPERAND_IMM32 :
fields->f_imm32 = value;
break;
case BPF_OPERAND_IMM64 :
fields->f_imm64 = value;
break;
case BPF_OPERAND_OFFSET16 :
fields->f_offset16 = value;
break;
case BPF_OPERAND_SRCBE :
fields->f_srcbe = value;
break;
case BPF_OPERAND_SRCLE :
fields->f_srcle = value;
break;
default :
/* xgettext:c-format */
opcodes_error_handler
(_("internal error: unrecognized field %d while setting vma operand"),
opindex);
abort ();
}
}
/* Function to call before using the instruction builder tables. */
void
bpf_cgen_init_ibld_table (CGEN_CPU_DESC cd)
{
cd->insert_handlers = & bpf_cgen_insert_handlers[0];
cd->extract_handlers = & bpf_cgen_extract_handlers[0];
cd->insert_operand = bpf_cgen_insert_operand;
cd->extract_operand = bpf_cgen_extract_operand;
cd->get_int_operand = bpf_cgen_get_int_operand;
cd->set_int_operand = bpf_cgen_set_int_operand;
cd->get_vma_operand = bpf_cgen_get_vma_operand;
cd->set_vma_operand = bpf_cgen_set_vma_operand;
}

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/* 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 */

19
opcodes/configure vendored
View File

@ -769,6 +769,7 @@ infodir
docdir
oldincludedir
includedir
runstatedir
localstatedir
sharedstatedir
sysconfdir
@ -854,6 +855,7 @@ datadir='${datarootdir}'
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
runstatedir='${localstatedir}/run'
includedir='${prefix}/include'
oldincludedir='/usr/include'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
@ -1106,6 +1108,15 @@ do
| -silent | --silent | --silen | --sile | --sil)
silent=yes ;;
-runstatedir | --runstatedir | --runstatedi | --runstated \
| --runstate | --runstat | --runsta | --runst | --runs \
| --run | --ru | --r)
ac_prev=runstatedir ;;
-runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
| --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
| --run=* | --ru=* | --r=*)
runstatedir=$ac_optarg ;;
-sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
ac_prev=sbindir ;;
-sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
@ -1243,7 +1254,7 @@ fi
for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
datadir sysconfdir sharedstatedir localstatedir includedir \
oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
libdir localedir mandir
libdir localedir mandir runstatedir
do
eval ac_val=\$$ac_var
# Remove trailing slashes.
@ -1396,6 +1407,7 @@ Fine tuning of the installation directories:
--sysconfdir=DIR read-only single-machine data [PREFIX/etc]
--sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
--localstatedir=DIR modifiable single-machine data [PREFIX/var]
--runstatedir=DIR modifiable per-process data [LOCALSTATEDIR/run]
--libdir=DIR object code libraries [EPREFIX/lib]
--includedir=DIR C header files [PREFIX/include]
--oldincludedir=DIR C header files for non-gcc [/usr/include]
@ -11439,7 +11451,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 11442 "configure"
#line 11454 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -11545,7 +11557,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
#line 11548 "configure"
#line 11560 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@ -12949,6 +12961,7 @@ if test x${all_targets} = xfalse ; then
bfd_xtensa_arch) ta="$ta xtensa-dis.lo" ;;
bfd_z80_arch) ta="$ta z80-dis.lo" ;;
bfd_z8k_arch) ta="$ta z8k-dis.lo" ;;
bfd_bpf_arch) ta="$ta bpf-asm.lo bpf-desc.lo bpf-dis.lo bpf-ibld.lo bpf-opc.lo" using_cgen=yes ;;
"") ;;
*) as_fn_error $? "*** unknown target architecture $arch" "$LINENO" 5 ;;

1
opcodes/configure.ac
View File

@ -340,6 +340,7 @@ if test x${all_targets} = xfalse ; then
bfd_xtensa_arch) ta="$ta xtensa-dis.lo" ;;
bfd_z80_arch) ta="$ta z80-dis.lo" ;;
bfd_z8k_arch) ta="$ta z8k-dis.lo" ;;
bfd_bpf_arch) ta="$ta bpf-asm.lo bpf-desc.lo bpf-dis.lo bpf-ibld.lo bpf-opc.lo" using_cgen=yes ;;
"") ;;
*) AC_MSG_ERROR(*** unknown target architecture $arch) ;;

35
opcodes/disassemble.c
View File

@ -37,6 +37,7 @@
#define ARCH_d10v
#define ARCH_d30v
#define ARCH_dlx
#define ARCH_bpf
#define ARCH_epiphany
#define ARCH_fr30
#define ARCH_frv
@ -106,6 +107,23 @@
#include "m32c-desc.h"
#endif
#ifdef ARCH_bpf
/* XXX this should be including bpf-desc.h instead of this hackery,
but at the moment it is not possible to include several CGEN
generated *-desc.h files simultaneously. To be fixed in
CGEN... */
# ifdef ARCH_m32c
enum epbf_isa_attr
{
ISA_EBPFLE, ISA_EBPFBE, ISA_EBPFMAX
};
# else
# include "bpf-desc.h"
# define ISA_EBPFMAX ISA_MAX
# endif
#endif /* ARCH_bpf */
disassembler_ftype
disassembler (enum bfd_architecture a,
bfd_boolean big ATTRIBUTE_UNUSED,
@ -224,6 +242,11 @@ disassembler (enum bfd_architecture a,
disassemble = print_insn_ip2k;
break;
#endif
#ifdef ARCH_bpf
case bfd_arch_bpf:
disassemble = print_insn_bpf;
break;
#endif
#ifdef ARCH_epiphany
case bfd_arch_epiphany:
disassemble = print_insn_epiphany;
@ -641,6 +664,18 @@ disassemble_init_for_target (struct disassemble_info * info)
}
break;
#endif
#ifdef ARCH_bpf
case bfd_arch_bpf:
if (!info->insn_sets)
{
info->insn_sets = cgen_bitset_create (ISA_EBPFMAX);
if (info->endian == BFD_ENDIAN_BIG)
cgen_bitset_set (info->insn_sets, ISA_EBPFBE);
else
cgen_bitset_set (info->insn_sets, ISA_EBPFLE);
}
break;
#endif
#ifdef ARCH_pru
case bfd_arch_pru:
info->disassembler_needs_relocs = TRUE;

1
opcodes/disassemble.h
View File

@ -36,6 +36,7 @@ extern int print_insn_csky (bfd_vma, disassemble_info *);
extern int print_insn_d10v (bfd_vma, disassemble_info *);
extern int print_insn_d30v (bfd_vma, disassemble_info *);
extern int print_insn_dlx (bfd_vma, disassemble_info *);
extern int print_insn_bpf (bfd_vma, disassemble_info *);
extern int print_insn_epiphany (bfd_vma, disassemble_info *);
extern int print_insn_fr30 (bfd_vma, disassemble_info *);
extern int print_insn_frv (bfd_vma, disassemble_info *);