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[/] [or1k/] [trunk/] [gdb-5.3/] [opcodes/] [dis-buf.c] - Rev 1775
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/* Disassemble from a buffer, for GNU. Copyright 1993, 1994, 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "sysdep.h" #include "dis-asm.h" #include <errno.h> #include "opintl.h" /* Get LENGTH bytes from info's buffer, at target address memaddr. Transfer them to myaddr. */ int buffer_read_memory (memaddr, myaddr, length, info) 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 + end_addr_offset > max_addr_offset) /* 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 (status, memaddr, info) 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 /* Actually, address between memaddr and memaddr + len was out of bounds. */ info->fprintf_func (info->stream, _("Address 0x%x is out of bounds.\n"), memaddr); } /* 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 (addr, info) bfd_vma addr; struct disassemble_info *info; { char buf[30]; sprintf_vma (buf, addr); (*info->fprintf_func) (info->stream, "0x%s", buf); } #if 0 /* Just concatenate the address as hex. This is included for completeness even though both GDB and objdump provide their own (to print symbolic addresses). */ void generic_strcat_address PARAMS ((bfd_vma, char *, int)); void generic_strcat_address (addr, buf, len) bfd_vma addr; char *buf; int len; { if (buf != (char *)NULL && len > 0) { char tmpBuf[30]; sprintf_vma (tmpBuf, addr); if ((strlen (buf) + strlen (tmpBuf)) <= (unsigned int) len) strcat (buf, tmpBuf); else strncat (buf, tmpBuf, (len - strlen(buf))); } return; } #endif /* Just return the given address. */ int generic_symbol_at_address (addr, info) bfd_vma addr ATTRIBUTE_UNUSED; struct disassemble_info *info ATTRIBUTE_UNUSED; { return 1; }
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