WebSVN – Kolibri OS – Diff – /contrib/toolchain/binutils/opcodes/dis-buf.c


/* Disassemble from a buffer, for GNU.
 
   Copyright (C) 1993-2015 Free Software Foundation, Inc.
 
   This file is part of the GNU opcodes library.
 
   This library is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3, or (at your option)
   any later version.
 
   It is distributed in the hope that it will be useful, but WITHOUT
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
   License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */
 
#include "sysdep.h"
#include "dis-asm.h"
#include 
#include "opintl.h"
 
/* Get LENGTH bytes from info's buffer, at target address memaddr.
   Transfer them to myaddr.  */
int
buffer_read_memory (bfd_vma memaddr,
		    bfd_byte *myaddr,
		    unsigned int length,
		    struct disassemble_info *info)
{
  unsigned int opb = info->octets_per_byte;
  unsigned int end_addr_offset = length / opb;
  unsigned int max_addr_offset = info->buffer_length / opb;
  unsigned int octets = (memaddr - info->buffer_vma) * opb;
 
  if (memaddr < info->buffer_vma
      || memaddr - info->buffer_vma > max_addr_offset
      || memaddr - info->buffer_vma + end_addr_offset > max_addr_offset
      || (info->stop_vma && (memaddr >= info->stop_vma
			     || memaddr + end_addr_offset > info->stop_vma)))
    /* Out of bounds.  Use EIO because GDB uses it.  */
    return EIO;
  memcpy (myaddr, info->buffer + octets, length);
 
  return 0;
}
 
/* Print an error message.  We can assume that this is in response to
   an error return from buffer_read_memory.  */
 
void
perror_memory (int status,
	       bfd_vma memaddr,
	       struct disassemble_info *info)
{
  if (status != EIO)
    /* Can't happen.  */
    info->fprintf_func (info->stream, _("Unknown error %d\n"), status);
  else
    {
      char buf[30];
 
      /* Actually, address between memaddr and memaddr + len was
	 out of bounds.  */
      sprintf_vma (buf, memaddr);
      info->fprintf_func (info->stream,
			  _("Address 0x%s is out of bounds.\n"), buf);
    }
}
 
/* This could be in a separate file, to save miniscule amounts of space
   in statically linked executables.  */
 
/* Just print the address is hex.  This is included for completeness even
   though both GDB and objdump provide their own (to print symbolic
   addresses).  */
 
void
generic_print_address (bfd_vma addr, struct disassemble_info *info)
{
  char buf[30];
 
  sprintf_vma (buf, addr);
  (*info->fprintf_func) (info->stream, "0x%s", buf);
}
 
/* Just return true.  */
 
int
generic_symbol_at_address (bfd_vma addr ATTRIBUTE_UNUSED,
			   struct disassemble_info *info ATTRIBUTE_UNUSED)
{
  return 1;
}
 
/* Just return TRUE.  */
 
bfd_boolean
generic_symbol_is_valid (asymbol * sym ATTRIBUTE_UNUSED,
			 struct disassemble_info *info ATTRIBUTE_UNUSED)
{
  return TRUE;
}

Rev 5221	Rev 6324
1	/* Disassemble from a buffer, for GNU.	1	/* Disassemble from a buffer, for GNU.
2	Copyright 1993, 1994, 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2005,	-
3	2007, 2009, 2010 Free Software Foundation, Inc.	2	Copyright (C) 1993-2015 Free Software Foundation, Inc.
4		3
5	This file is part of the GNU opcodes library.	4	This file is part of the GNU opcodes library.
6		5
7	This library is free software; you can redistribute it and/or modify	6	This library is free software; you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	7	it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 3, or (at your option)	8	the Free Software Foundation; either version 3, or (at your option)
10	any later version.	9	any later version.
11		10
12	It is distributed in the hope that it will be useful, but WITHOUT	11	It is distributed in the hope that it will be useful, but WITHOUT
13	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY	12	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14	or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public	13	or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15	License for more details.	14	License for more details.
16		15
17	You should have received a copy of the GNU General Public License	16	You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software	17	along with this program; if not, write to the Free Software
19	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,	18	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20	MA 02110-1301, USA. */	19	MA 02110-1301, USA. */
21		20
22	#include "sysdep.h"	21	#include "sysdep.h"
23	#include "dis-asm.h"	22	#include "dis-asm.h"
24	#include	23	#include
25	#include "opintl.h"	24	#include "opintl.h"
26		25
27	/* Get LENGTH bytes from info's buffer, at target address memaddr.	26	/* Get LENGTH bytes from info's buffer, at target address memaddr.
28	Transfer them to myaddr. */	27	Transfer them to myaddr. */
29	int	28	int
30	buffer_read_memory (bfd_vma memaddr,	29	buffer_read_memory (bfd_vma memaddr,
31	bfd_byte *myaddr,	30	bfd_byte *myaddr,
32	unsigned int length,	31	unsigned int length,
33	struct disassemble_info *info)	32	struct disassemble_info *info)
34	{	33	{
35	unsigned int opb = info->octets_per_byte;	34	unsigned int opb = info->octets_per_byte;
36	unsigned int end_addr_offset = length / opb;	35	unsigned int end_addr_offset = length / opb;
37	unsigned int max_addr_offset = info->buffer_length / opb;	36	unsigned int max_addr_offset = info->buffer_length / opb;
38	unsigned int octets = (memaddr - info->buffer_vma) * opb;	37	unsigned int octets = (memaddr - info->buffer_vma) * opb;
39		38
40	if (memaddr < info->buffer_vma	39	if (memaddr < info->buffer_vma
41	\|\| memaddr - info->buffer_vma > max_addr_offset	40	\|\| memaddr - info->buffer_vma > max_addr_offset
42	\|\| memaddr - info->buffer_vma + end_addr_offset > max_addr_offset)	41	\|\| memaddr - info->buffer_vma + end_addr_offset > max_addr_offset
-		42	\|\| (info->stop_vma && (memaddr >= info->stop_vma
-		43	\|\| memaddr + end_addr_offset > info->stop_vma)))
43	/* Out of bounds. Use EIO because GDB uses it. */	44	/* Out of bounds. Use EIO because GDB uses it. */
44	return EIO;	45	return EIO;
45	memcpy (myaddr, info->buffer + octets, length);	46	memcpy (myaddr, info->buffer + octets, length);
46		47
47	return 0;	48	return 0;
48	}	49	}
49		50
50	/* Print an error message. We can assume that this is in response to	51	/* Print an error message. We can assume that this is in response to
51	an error return from buffer_read_memory. */	52	an error return from buffer_read_memory. */
52		53
53	void	54	void
54	perror_memory (int status,	55	perror_memory (int status,
55	bfd_vma memaddr,	56	bfd_vma memaddr,
56	struct disassemble_info *info)	57	struct disassemble_info *info)
57	{	58	{
58	if (status != EIO)	59	if (status != EIO)
59	/* Can't happen. */	60	/* Can't happen. */
60	info->fprintf_func (info->stream, _("Unknown error %d\n"), status);	61	info->fprintf_func (info->stream, _("Unknown error %d\n"), status);
61	else	62	else
62	{	63	{
63	char buf[30];	64	char buf[30];
64		65
65	/* Actually, address between memaddr and memaddr + len was	66	/* Actually, address between memaddr and memaddr + len was
66	out of bounds. */	67	out of bounds. */
67	sprintf_vma (buf, memaddr);	68	sprintf_vma (buf, memaddr);
68	info->fprintf_func (info->stream,	69	info->fprintf_func (info->stream,
69	_("Address 0x%s is out of bounds.\n"), buf);	70	_("Address 0x%s is out of bounds.\n"), buf);
70	}	71	}
71	}	72	}
72		73
73	/* This could be in a separate file, to save miniscule amounts of space	74	/* This could be in a separate file, to save miniscule amounts of space
74	in statically linked executables. */	75	in statically linked executables. */
75		76
76	/* Just print the address is hex. This is included for completeness even	77	/* Just print the address is hex. This is included for completeness even
77	though both GDB and objdump provide their own (to print symbolic	78	though both GDB and objdump provide their own (to print symbolic
78	addresses). */	79	addresses). */
79		80
80	void	81	void
81	generic_print_address (bfd_vma addr, struct disassemble_info *info)	82	generic_print_address (bfd_vma addr, struct disassemble_info *info)
82	{	83	{
83	char buf[30];	84	char buf[30];
84		85
85	sprintf_vma (buf, addr);	86	sprintf_vma (buf, addr);
86	(*info->fprintf_func) (info->stream, "0x%s", buf);	87	(*info->fprintf_func) (info->stream, "0x%s", buf);
87	}	88	}
88		89
89	/* Just return true. */	90	/* Just return true. */
90		91
91	int	92	int
92	generic_symbol_at_address (bfd_vma addr ATTRIBUTE_UNUSED,	93	generic_symbol_at_address (bfd_vma addr ATTRIBUTE_UNUSED,
93	struct disassemble_info *info ATTRIBUTE_UNUSED)	94	struct disassemble_info *info ATTRIBUTE_UNUSED)
94	{	95	{
95	return 1;	96	return 1;
96	}	97	}
97		98
98	/* Just return TRUE. */	99	/* Just return TRUE. */
99		100
100	bfd_boolean	101	bfd_boolean
101	generic_symbol_is_valid (asymbol * sym ATTRIBUTE_UNUSED,	102	generic_symbol_is_valid (asymbol * sym ATTRIBUTE_UNUSED,
102	struct disassemble_info *info ATTRIBUTE_UNUSED)	103	struct disassemble_info *info ATTRIBUTE_UNUSED)
103	{	104	{
104	return TRUE;	105	return TRUE;
105	}	106	}

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(root)/contrib/toolchain/binutils/opcodes/dis-buf.c @ 8031 – Rev 5221 → 6324