1510 lines
33 KiB
C
1510 lines
33 KiB
C
/* evax-etir.c -- BFD back-end for ALPHA EVAX (openVMS/Alpha) files.
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Copyright 1996, 1997 Free Software Foundation, Inc.
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ETIR record handling functions
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go and read the openVMS linker manual (esp. appendix B)
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if you don't know what's going on here :-)
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Written by Klaus K"ampf (kkaempf@progis.de)
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of proGIS Softwareentwicklung, Aachen, Germany
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/* The following type abbreviations are used:
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cs counted string (ascii string with length byte)
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by byte (1 byte)
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sh short (2 byte, 16 bit)
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lw longword (4 byte, 32 bit)
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qw quadword (8 byte, 64 bit)
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da data stream */
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#include <stdio.h>
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#include <ctype.h>
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#include "bfd.h"
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#include "sysdep.h"
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#include "bfdlink.h"
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#include "libbfd.h"
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#include "evax.h"
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#if 0
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static void location_save
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PARAMS ((bfd *abfd, unsigned long index, unsigned long loc, int section));
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static unsigned long location_restore
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PARAMS ((bfd *abfd, unsigned long index, int *section));
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#endif /* 0 */
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static void image_set_ptr PARAMS ((bfd *abfd, int psect, uquad offset));
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static void image_inc_ptr PARAMS ((bfd *abfd, uquad offset));
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static void image_dump PARAMS ((bfd *abfd, unsigned char *ptr, int size, int offset));
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static void image_write_b PARAMS ((bfd *abfd, unsigned int value));
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static void image_write_w PARAMS ((bfd *abfd, unsigned int value));
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static void image_write_l PARAMS ((bfd *abfd, unsigned long value));
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static void image_write_q PARAMS ((bfd *abfd, uquad value));
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/*-----------------------------------------------------------------------------*/
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#if 0
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/* Save location counter at index */
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static void
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location_save (abfd, index, loc, section)
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bfd *abfd;
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unsigned long index;
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unsigned long loc;
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int section;
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{
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PRIV(location_stack)[index].value = loc;
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PRIV(location_stack)[index].psect = section;
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return;
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}
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/* Restore location counter from index */
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static unsigned long
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location_restore (abfd, index, section)
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bfd *abfd;
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unsigned long index;
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int *section;
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{
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if (section != NULL)
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*section = PRIV(location_stack)[index].psect;
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return PRIV(location_stack)[index].value;
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}
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#endif /* 0 */
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/* routines to fill sections contents during etir read */
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/* Initialize image buffer pointer to be filled */
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static void
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image_set_ptr (abfd, psect, offset)
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bfd *abfd;
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int psect;
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uquad offset;
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{
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#if EVAX_DEBUG
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evax_debug (4, "image_set_ptr(%d=%s, %d)\n",
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psect, PRIV(sections)[psect]->name, offset);
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#endif
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PRIV(image_ptr) = PRIV(sections)[psect]->contents + offset;
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return;
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}
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/* Increment image buffer pointer by offset */
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static void
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image_inc_ptr (abfd, offset)
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bfd *abfd;
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uquad offset;
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{
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#if EVAX_DEBUG
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evax_debug (4, "image_inc_ptr(%d)\n", offset);
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#endif
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PRIV(image_ptr) += offset;
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return;
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}
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/* Dump multiple bytes to section image */
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static void
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image_dump (abfd, ptr, size, offset)
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bfd *abfd;
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unsigned char *ptr;
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int size;
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int offset;
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{
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#if EVAX_DEBUG
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evax_debug (6, "image_dump from (%p, %d) to (%p)\n", ptr, size, PRIV(image_ptr));
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_bfd_hexdump (7, ptr, size, offset);
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#endif
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while (size-- > 0)
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*PRIV(image_ptr)++ = *ptr++;
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return;
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}
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/* Write byte to section image */
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static void
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image_write_b (abfd, value)
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bfd *abfd;
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unsigned int value;
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{
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#if EVAX_DEBUG
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evax_debug (6, "image_write_b(%02x)\n", (int)value);
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#endif
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*PRIV(image_ptr)++ = (value & 0xff);
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return;
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}
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/* Write 2-byte word to image */
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static void
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image_write_w (abfd, value)
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bfd *abfd;
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unsigned int value;
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{
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#if EVAX_DEBUG
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evax_debug (6, "image_write_w(%04x)\n", (int)value);
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#endif
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bfd_putl16 (value, PRIV(image_ptr));
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PRIV(image_ptr) += 2;
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return;
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}
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/* Write 4-byte long to image */
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static void
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image_write_l (abfd, value)
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bfd *abfd;
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unsigned long value;
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{
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#if EVAX_DEBUG
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evax_debug (6, "image_write_l(%08lx)\n", value);
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#endif
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bfd_putl32 (value, PRIV(image_ptr));
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PRIV(image_ptr) += 4;
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return;
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}
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/* Write 4-byte long to image */
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static void
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image_write_q (abfd, value)
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bfd *abfd;
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uquad value;
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{
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#if EVAX_DEBUG
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evax_debug (6, "image_write_q(%016lx)\n", value);
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#endif
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bfd_putl64 (value, PRIV(image_ptr));
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PRIV(image_ptr) += 8;
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return;
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}
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#define HIGHBIT(op) ((op & 0x80000000L) == 0x80000000L)
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/* etir_sta
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evax stack commands
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handle sta_xxx commands in etir section
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ptr points to data area in record
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see table B-8 of the openVMS linker manual */
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static boolean
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etir_sta (abfd, cmd, ptr)
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bfd *abfd;
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int cmd;
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unsigned char *ptr;
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{
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switch (cmd)
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{
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/* stack */
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/* stack global
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arg: cs symbol name
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stack 32 bit value of symbol (high bits set to 0) */
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case ETIR_S_C_STA_GBL:
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{
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char *name;
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evax_symbol_entry *entry;
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name = _bfd_evax_save_counted_string ((char *)ptr);
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entry = (evax_symbol_entry *)
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bfd_hash_lookup (PRIV(evax_symbol_table), name, false, false);
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if (entry == (evax_symbol_entry *)NULL)
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{
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#if EVAX_DEBUG
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evax_debug (3, "ETIR_S_C_STA_GBL: no symbol \"%s\"\n", name);
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#endif
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return false;
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}
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else
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{
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_bfd_evax_push (abfd, (uquad)(entry->symbol->value), -1);
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}
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}
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break;
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/* stack longword
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arg: lw value
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stack 32 bit value, sign extend to 64 bit */
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case ETIR_S_C_STA_LW:
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_bfd_evax_push (abfd, (uquad)bfd_getl32 (ptr), -1);
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break;
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/* stack global
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arg: qw value
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stack 64 bit value of symbol */
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case ETIR_S_C_STA_QW:
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_bfd_evax_push (abfd, (uquad)bfd_getl64(ptr), -1);
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break;
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/* stack psect base plus quadword offset
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arg: lw section index
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qw signed quadword offset (low 32 bits)
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stack qw argument and section index
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(see ETIR_S_C_STO_OFF, ETIR_S_C_CTL_SETRB) */
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case ETIR_S_C_STA_PQ:
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{
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uquad dummy;
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int psect;
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psect = bfd_getl32 (ptr);
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if (psect >= PRIV(egsd_sec_count))
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{
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(*_bfd_error_handler) ("Bad section index in ETIR_S_C_STA_PQ");
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bfd_set_error (bfd_error_bad_value);
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return false;
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}
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dummy = bfd_getl64 (ptr+4);
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_bfd_evax_push (abfd, dummy, psect);
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}
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break;
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/* all not supported */
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case ETIR_S_C_STA_LI:
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case ETIR_S_C_STA_MOD:
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case ETIR_S_C_STA_CKARG:
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(*_bfd_error_handler) ("Unsupported STA cmd %d", cmd);
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return false;
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break;
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default:
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(*_bfd_error_handler) ("Reserved STA cmd %d", cmd);
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return false;
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break;
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}
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return true;
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}
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/*
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etir_sto
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evax store commands
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handle sto_xxx commands in etir section
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ptr points to data area in record
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see table B-9 of the openVMS linker manual */
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static boolean
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etir_sto (abfd, cmd, ptr)
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bfd *abfd;
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int cmd;
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unsigned char *ptr;
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{
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uquad dummy;
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int psect;
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switch (cmd)
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{
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/* store byte: pop stack, write byte
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arg: - */
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case ETIR_S_C_STO_B:
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dummy = _bfd_evax_pop (abfd, &psect);
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#if 0
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if (is_share) /* FIXME */
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(*_bfd_error_handler) ("ETIR_S_C_STO_B: byte fixups not supported");
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#endif
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image_write_b (abfd, dummy & 0xff); /* FIXME: check top bits */
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break;
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/* store word: pop stack, write word
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arg: - */
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case ETIR_S_C_STO_W:
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dummy = _bfd_evax_pop (abfd, &psect);
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#if 0
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if (is_share) /* FIXME */
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(*_bfd_error_handler) ("ETIR_S_C_STO_B: word fixups not supported");
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#endif
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image_write_w (abfd, dummy & 0xffff); /* FIXME: check top bits */
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break;
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/* store longword: pop stack, write longword
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arg: - */
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case ETIR_S_C_STO_LW:
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dummy = _bfd_evax_pop (abfd, &psect);
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dummy += (PRIV(sections)[psect])->vma;
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image_write_l (abfd, dummy & 0xffffffff);/* FIXME: check top bits */
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#if 0 /* FIXME */
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if (is_rel)
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evax_debug (3, "ETIR_S_C_STO_LW: Relocation !\n");
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if (is_share)
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evax_debug (3, "ETIR_S_C_STO_LW: Fix-up share !\n");
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#endif
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break;
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/* store quadword: pop stack, write quadword
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arg: - */
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case ETIR_S_C_STO_QW:
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dummy = _bfd_evax_pop (abfd, &psect);
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dummy += (PRIV(sections)[psect])->vma;
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image_write_q(abfd, dummy); /* FIXME: check top bits */
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#if 0 /* FIXME */
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if (is_rel)
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evax_debug (3, "ETIR_S_C_STO_LW: Relocation !\n");
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if (is_share)
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evax_debug (3, "ETIR_S_C_STO_LW: Fix-up share !\n");
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#endif
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break;
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/* store immediate repeated: pop stack for repeat count
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arg: lw byte count
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da data */
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case ETIR_S_C_STO_IMMR:
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{
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unsigned long size;
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size = bfd_getl32 (ptr);
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dummy = (unsigned long)_bfd_evax_pop (abfd, NULL);
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while (dummy-- > 0L)
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image_dump (abfd, ptr+4, size, 0);
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}
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break;
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/* store global: write symbol value
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arg: cs global symbol name */
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case ETIR_S_C_STO_GBL:
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{
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evax_symbol_entry *entry;
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char *name;
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name = _bfd_evax_save_counted_string ((char *)ptr);
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entry = (evax_symbol_entry *)bfd_hash_lookup (PRIV(evax_symbol_table), name, false, false);
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if (entry == (evax_symbol_entry *)NULL)
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{
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(*_bfd_error_handler) ("ETIR_S_C_STO_GBL: no symbol \"%s\"",
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name);
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return false;
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}
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else
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image_write_q (abfd, (uquad)(entry->symbol->value)); /* FIXME, reloc */
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}
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break;
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/* store code address: write address of entry point
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arg: cs global symbol name (procedure) */
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case ETIR_S_C_STO_CA:
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{
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evax_symbol_entry *entry;
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char *name;
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name = _bfd_evax_save_counted_string ((char *)ptr);
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entry = (evax_symbol_entry *) bfd_hash_lookup (PRIV(evax_symbol_table), name, false, false);
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if (entry == (evax_symbol_entry *)NULL)
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{
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(*_bfd_error_handler) ("ETIR_S_C_STO_CA: no symbol \"%s\"",
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name);
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return false;
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||
}
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else
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image_write_q (abfd, (uquad)(entry->symbol->value)); /* FIXME, reloc */
|
||
}
|
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break;
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||
|
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/* not supported */
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|
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case ETIR_S_C_STO_RB:
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||
case ETIR_S_C_STO_AB:
|
||
(*_bfd_error_handler) ("ETIR_S_C_STO_RB/AB: Not supported");
|
||
break;
|
||
|
||
/* store offset to psect: pop stack, add low 32 bits to base of psect
|
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arg: - */
|
||
|
||
case ETIR_S_C_STO_OFF:
|
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{
|
||
uquad q;
|
||
int psect;
|
||
|
||
q = _bfd_evax_pop (abfd, &psect);
|
||
q += (PRIV(sections)[psect])->vma;
|
||
image_write_q (abfd, q);
|
||
}
|
||
break;
|
||
|
||
/* store immediate
|
||
arg: lw count of bytes
|
||
da data */
|
||
|
||
case ETIR_S_C_STO_IMM:
|
||
{
|
||
int size;
|
||
|
||
size = bfd_getl32 (ptr);
|
||
image_dump (abfd, ptr+4, size, 0);
|
||
}
|
||
break;
|
||
|
||
/* this code is 'reserved to digital' according to the openVMS linker manual,
|
||
however it is generated by the DEC C compiler and defined in the include file.
|
||
FIXME, since the following is just a guess
|
||
store global longword: store 32bit value of symbol
|
||
arg: cs symbol name */
|
||
|
||
case ETIR_S_C_STO_GBL_LW:
|
||
{
|
||
evax_symbol_entry *entry;
|
||
char *name;
|
||
|
||
name = _bfd_evax_save_counted_string ((char *)ptr);
|
||
entry = (evax_symbol_entry *)bfd_hash_lookup (PRIV(evax_symbol_table), name, false, false);
|
||
if (entry == (evax_symbol_entry *)NULL)
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (3, "ETIR_S_C_STO_GBL_LW: no symbol \"%s\"\n", name);
|
||
#endif
|
||
return false;
|
||
}
|
||
else
|
||
image_write_l (abfd, (unsigned long)(entry->symbol->value)); /* FIXME, reloc */
|
||
}
|
||
break;
|
||
|
||
/* not supported */
|
||
|
||
case ETIR_S_C_STO_LP_PSB:
|
||
(*_bfd_error_handler) ("ETIR_S_C_STO_LP_PSB: Not supported");
|
||
break;
|
||
|
||
/* */
|
||
|
||
case ETIR_S_C_STO_HINT_GBL:
|
||
(*_bfd_error_handler) ("ETIR_S_C_STO_HINT_GBL: not implemented");
|
||
break;
|
||
|
||
/* */
|
||
|
||
case ETIR_S_C_STO_HINT_PS:
|
||
(*_bfd_error_handler) ("ETIR_S_C_STO_HINT_PS: not implemented");
|
||
break;
|
||
|
||
default:
|
||
(*_bfd_error_handler) ("Reserved STO cmd %d", cmd);
|
||
break;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
/* stack operator commands
|
||
all 32 bit signed arithmetic
|
||
all word just like a stack calculator
|
||
arguments are popped from stack, results are pushed on stack
|
||
|
||
see table B-10 of the openVMS linker manual */
|
||
|
||
static boolean
|
||
etir_opr (abfd, cmd, ptr)
|
||
bfd *abfd;
|
||
int cmd;
|
||
unsigned char *ptr;
|
||
{
|
||
long op1, op2;
|
||
|
||
switch (cmd)
|
||
{
|
||
/* operation */
|
||
|
||
/* no-op */
|
||
|
||
case ETIR_S_C_OPR_NOP:
|
||
break;
|
||
|
||
/* add */
|
||
|
||
case ETIR_S_C_OPR_ADD:
|
||
op1 = (long)_bfd_evax_pop (abfd, NULL);
|
||
op2 = (long)_bfd_evax_pop (abfd, NULL);
|
||
_bfd_evax_push (abfd, (uquad)(op1 + op2), -1);
|
||
break;
|
||
|
||
/* subtract */
|
||
|
||
case ETIR_S_C_OPR_SUB:
|
||
op1 = (long)_bfd_evax_pop (abfd, NULL);
|
||
op2 = (long)_bfd_evax_pop (abfd, NULL);
|
||
_bfd_evax_push (abfd, (uquad)(op2 - op1), -1);
|
||
break;
|
||
|
||
/* multiply */
|
||
|
||
case ETIR_S_C_OPR_MUL:
|
||
op1 = (long)_bfd_evax_pop (abfd, NULL);
|
||
op2 = (long)_bfd_evax_pop (abfd, NULL);
|
||
_bfd_evax_push (abfd, (uquad)(op1 * op2), -1);
|
||
break;
|
||
|
||
/* divide */
|
||
|
||
case ETIR_S_C_OPR_DIV:
|
||
op1 = (long)_bfd_evax_pop (abfd, NULL);
|
||
op2 = (long)_bfd_evax_pop (abfd, NULL);
|
||
if (op2 == 0)
|
||
_bfd_evax_push (abfd, (uquad)0L, -1);
|
||
else
|
||
_bfd_evax_push (abfd, (uquad)(op2 / op1), -1);
|
||
break;
|
||
|
||
/* logical and */
|
||
|
||
case ETIR_S_C_OPR_AND:
|
||
op1 = (long)_bfd_evax_pop (abfd, NULL);
|
||
op2 = (long)_bfd_evax_pop (abfd, NULL);
|
||
_bfd_evax_push (abfd, (uquad)(op1 & op2), -1);
|
||
break;
|
||
|
||
/* logical inclusive or */
|
||
|
||
case ETIR_S_C_OPR_IOR:
|
||
op1 = (long)_bfd_evax_pop (abfd, NULL);
|
||
op2 = (long)_bfd_evax_pop (abfd, NULL);
|
||
_bfd_evax_push (abfd, (uquad)(op1 | op2), -1);
|
||
break;
|
||
|
||
/* logical exclusive or */
|
||
|
||
case ETIR_S_C_OPR_EOR:
|
||
op1 = (long)_bfd_evax_pop (abfd, NULL);
|
||
op2 = (long)_bfd_evax_pop (abfd, NULL);
|
||
_bfd_evax_push (abfd, (uquad)(op1 ^ op2), -1);
|
||
break;
|
||
|
||
/* negate */
|
||
|
||
case ETIR_S_C_OPR_NEG:
|
||
op1 = (long)_bfd_evax_pop (abfd, NULL);
|
||
_bfd_evax_push (abfd, (uquad)(-op1), -1);
|
||
break;
|
||
|
||
/* complement */
|
||
|
||
case ETIR_S_C_OPR_COM:
|
||
op1 = (long)_bfd_evax_pop (abfd, NULL);
|
||
_bfd_evax_push (abfd, (uquad)(op1 ^ -1L), -1);
|
||
break;
|
||
|
||
/* insert field */
|
||
|
||
case ETIR_S_C_OPR_INSV:
|
||
(void)_bfd_evax_pop (abfd, NULL);
|
||
(*_bfd_error_handler) ("ETIR_S_C_OPR_INSV: Not supported");
|
||
break;
|
||
|
||
/* arithmetic shift */
|
||
|
||
case ETIR_S_C_OPR_ASH:
|
||
op1 = (long)_bfd_evax_pop (abfd, NULL);
|
||
op2 = (long)_bfd_evax_pop (abfd, NULL);
|
||
if (op2 < 0) /* shift right */
|
||
op1 >>= -op2;
|
||
else /* shift left */
|
||
op1 <<= op2;
|
||
_bfd_evax_push (abfd, (uquad)op1, -1);
|
||
break;
|
||
|
||
/* unsigned shift */
|
||
|
||
case ETIR_S_C_OPR_USH:
|
||
(*_bfd_error_handler) ("ETIR_S_C_OPR_USH: Not supported");
|
||
break;
|
||
|
||
/* rotate */
|
||
|
||
case ETIR_S_C_OPR_ROT:
|
||
(*_bfd_error_handler) ("ETIR_S_C_OPR_ROT: Not supported");
|
||
break;
|
||
|
||
/* select */
|
||
|
||
case ETIR_S_C_OPR_SEL:
|
||
if ((long)_bfd_evax_pop (abfd, NULL) & 0x01L)
|
||
(void)_bfd_evax_pop (abfd, NULL);
|
||
else
|
||
{
|
||
op1 = (long)_bfd_evax_pop (abfd, NULL);
|
||
(void)_bfd_evax_pop (abfd, NULL);
|
||
_bfd_evax_push (abfd, (uquad)op1, -1);
|
||
}
|
||
break;
|
||
|
||
/* redefine symbol to current location */
|
||
|
||
case ETIR_S_C_OPR_REDEF:
|
||
(*_bfd_error_handler) ("ETIR_S_C_OPR_REDEF: Not supported");
|
||
break;
|
||
|
||
/* define a literal */
|
||
|
||
case ETIR_S_C_OPR_DFLIT:
|
||
(*_bfd_error_handler) ("ETIR_S_C_OPR_DFLIT: Not supported");
|
||
break;
|
||
|
||
default:
|
||
(*_bfd_error_handler) ("Reserved OPR cmd %d", cmd);
|
||
break;
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
|
||
/* control commands
|
||
|
||
see table B-11 of the openVMS linker manual */
|
||
|
||
static boolean
|
||
etir_ctl (abfd, cmd, ptr)
|
||
bfd *abfd;
|
||
int cmd;
|
||
unsigned char *ptr;
|
||
{
|
||
uquad dummy;
|
||
int psect;
|
||
|
||
switch (cmd)
|
||
{
|
||
/* set relocation base: pop stack, set image location counter
|
||
arg: - */
|
||
|
||
case ETIR_S_C_CTL_SETRB:
|
||
dummy = _bfd_evax_pop (abfd, &psect);
|
||
image_set_ptr (abfd, psect, dummy);
|
||
break;
|
||
|
||
/* augment relocation base: increment image location counter by offset
|
||
arg: lw offset value */
|
||
|
||
case ETIR_S_C_CTL_AUGRB:
|
||
dummy = bfd_getl32 (ptr);
|
||
image_inc_ptr (abfd, dummy);
|
||
break;
|
||
|
||
/* define location: pop index, save location counter under index
|
||
arg: - */
|
||
|
||
case ETIR_S_C_CTL_DFLOC:
|
||
dummy = _bfd_evax_pop (abfd, NULL);
|
||
/* FIXME */
|
||
break;
|
||
|
||
/* set location: pop index, restore location counter from index
|
||
arg: - */
|
||
|
||
case ETIR_S_C_CTL_STLOC:
|
||
dummy = _bfd_evax_pop (abfd, &psect);
|
||
/* FIXME */
|
||
break;
|
||
|
||
/* stack defined location: pop index, push location counter from index
|
||
arg: - */
|
||
|
||
case ETIR_S_C_CTL_STKDL:
|
||
dummy = _bfd_evax_pop (abfd, &psect);
|
||
/* FIXME */
|
||
break;
|
||
|
||
default:
|
||
(*_bfd_error_handler) ("Reserved CTL cmd %d", cmd);
|
||
break;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
|
||
/* store conditional commands
|
||
|
||
see table B-12 and B-13 of the openVMS linker manual */
|
||
|
||
static boolean
|
||
etir_stc (abfd, cmd, ptr)
|
||
bfd *abfd;
|
||
int cmd;
|
||
unsigned char *ptr;
|
||
{
|
||
|
||
switch (cmd)
|
||
{
|
||
/* 200 Store-conditional Linkage Pair
|
||
arg: */
|
||
|
||
case ETIR_S_C_STC_LP:
|
||
(*_bfd_error_handler) ("ETIR_S_C_STC_LP: not supported");
|
||
break;
|
||
|
||
/* 201 Store-conditional Linkage Pair with Procedure Signature
|
||
arg: lw linkage index
|
||
cs procedure name
|
||
by signature length
|
||
da signature */
|
||
|
||
case ETIR_S_C_STC_LP_PSB:
|
||
image_inc_ptr (abfd, 16); /* skip entry,procval */
|
||
break;
|
||
|
||
/* 202 Store-conditional Address at global address
|
||
arg: lw linkage index
|
||
cs global name */
|
||
|
||
case ETIR_S_C_STC_GBL:
|
||
(*_bfd_error_handler) ("ETIR_S_C_STC_GBL: not supported");
|
||
break;
|
||
|
||
/* 203 Store-conditional Code Address at global address
|
||
arg: lw linkage index
|
||
cs procedure name */
|
||
|
||
case ETIR_S_C_STC_GCA:
|
||
(*_bfd_error_handler) ("ETIR_S_C_STC_GCA: not supported");
|
||
break;
|
||
|
||
/* 204 Store-conditional Address at psect + offset
|
||
arg: lw linkage index
|
||
lw psect index
|
||
qw offset */
|
||
|
||
case ETIR_S_C_STC_PS:
|
||
(*_bfd_error_handler) ("ETIR_S_C_STC_PS: not supported");
|
||
break;
|
||
|
||
/* 205 Store-conditional NOP at address of global
|
||
arg: */
|
||
|
||
case ETIR_S_C_STC_NOP_GBL:
|
||
|
||
/* 206 Store-conditional NOP at pect + offset
|
||
arg: */
|
||
|
||
case ETIR_S_C_STC_NOP_PS:
|
||
|
||
/* 207 Store-conditional BSR at global address
|
||
arg: */
|
||
|
||
case ETIR_S_C_STC_BSR_GBL:
|
||
|
||
/* 208 Store-conditional BSR at pect + offset
|
||
arg: */
|
||
|
||
case ETIR_S_C_STC_BSR_PS:
|
||
|
||
/* 209 Store-conditional LDA at global address
|
||
arg: */
|
||
|
||
case ETIR_S_C_STC_LDA_GBL:
|
||
|
||
/* 210 Store-conditional LDA at psect + offset
|
||
arg: */
|
||
|
||
case ETIR_S_C_STC_LDA_PS:
|
||
|
||
/* 211 Store-conditional BSR or Hint at global address
|
||
arg: */
|
||
|
||
case ETIR_S_C_STC_BOH_GBL:
|
||
|
||
/* 212 Store-conditional BSR or Hint at pect + offset
|
||
arg: */
|
||
|
||
case ETIR_S_C_STC_BOH_PS:
|
||
|
||
/* 213 Store-conditional NOP,BSR or HINT at global address
|
||
arg: */
|
||
|
||
case ETIR_S_C_STC_NBH_GBL:
|
||
|
||
/* 214 Store-conditional NOP,BSR or HINT at psect + offset
|
||
arg: */
|
||
|
||
case ETIR_S_C_STC_NBH_PS:
|
||
/* FIXME (*_bfd_error_handler) ("ETIR_S_C_STC_xx: (%d) not supported", cmd); */
|
||
break;
|
||
|
||
default:
|
||
#if EVAX_DEBUG
|
||
evax_debug (3, "Reserved STC cmd %d", cmd);
|
||
#endif
|
||
break;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
|
||
/* handle command from ETIR section */
|
||
|
||
static boolean
|
||
tir_cmd (abfd, cmd, ptr)
|
||
bfd *abfd;
|
||
int cmd;
|
||
unsigned char *ptr;
|
||
{
|
||
static struct {
|
||
int mincod;
|
||
int maxcod;
|
||
boolean (*explain) PARAMS((bfd *, int, unsigned char *));
|
||
} tir_table[] = {
|
||
{ ETIR_S_C_MINSTACOD, ETIR_S_C_MAXSTACOD, etir_sta },
|
||
{ ETIR_S_C_MINSTOCOD, ETIR_S_C_MAXSTOCOD, etir_sto },
|
||
{ ETIR_S_C_MINOPRCOD, ETIR_S_C_MAXOPRCOD, etir_opr },
|
||
{ ETIR_S_C_MINCTLCOD, ETIR_S_C_MAXCTLCOD, etir_ctl },
|
||
{ ETIR_S_C_MINSTCCOD, ETIR_S_C_MAXSTCCOD, etir_stc },
|
||
{ -1, -1, NULL }
|
||
};
|
||
|
||
int i = 0;
|
||
boolean res = true;
|
||
|
||
while (tir_table[i].mincod >= 0)
|
||
{
|
||
if ( (tir_table[i].mincod <= cmd)
|
||
&& (cmd <= tir_table[i].maxcod))
|
||
{
|
||
res = tir_table[i].explain (abfd, cmd, ptr);
|
||
break;
|
||
}
|
||
i++;
|
||
}
|
||
|
||
return res;
|
||
}
|
||
|
||
|
||
/* Text Information and Relocation Records (OBJ$C_TIR)
|
||
handle etir record */
|
||
|
||
static boolean
|
||
analyze_etir (abfd, ptr, length)
|
||
bfd *abfd;
|
||
unsigned char *ptr;
|
||
unsigned int length;
|
||
{
|
||
int cmd;
|
||
unsigned char *maxptr;
|
||
boolean res = true;
|
||
|
||
maxptr = ptr + length;
|
||
|
||
while (ptr < maxptr)
|
||
{
|
||
cmd = bfd_getl16 (ptr);
|
||
length = bfd_getl16 (ptr + 2);
|
||
res = tir_cmd (abfd, cmd, ptr+4);
|
||
if (!res)
|
||
break;
|
||
ptr += length;
|
||
}
|
||
return res;
|
||
}
|
||
|
||
|
||
/* process ETIR record
|
||
|
||
return 0 on success, -1 on error */
|
||
|
||
int
|
||
_bfd_evax_slurp_etir (abfd)
|
||
bfd *abfd;
|
||
{
|
||
|
||
#if EVAX_DEBUG
|
||
evax_debug (2, "ETIR\n");
|
||
#endif
|
||
|
||
PRIV(evax_rec) += 4; /* skip type, size */
|
||
PRIV(rec_size) -= 4;
|
||
if (analyze_etir (abfd, PRIV(evax_rec), PRIV(rec_size)))
|
||
return 0;
|
||
|
||
return -1;
|
||
}
|
||
|
||
|
||
/* process EDBG record
|
||
return 0 on success, -1 on error
|
||
|
||
not implemented yet */
|
||
|
||
int
|
||
_bfd_evax_slurp_edbg (abfd)
|
||
bfd *abfd;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (2, "EDBG\n");
|
||
#endif
|
||
|
||
abfd->flags |= (HAS_DEBUG | HAS_LINENO);
|
||
return 0;
|
||
}
|
||
|
||
|
||
/* process ETBT record
|
||
return 0 on success, -1 on error
|
||
|
||
not implemented yet */
|
||
|
||
int
|
||
_bfd_evax_slurp_etbt (abfd)
|
||
bfd *abfd;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (2, "ETBT\n");
|
||
#endif
|
||
|
||
return 0;
|
||
}
|
||
|
||
/*----------------------------------------------------------------------*/
|
||
/* */
|
||
/* WRITE ETIR SECTION */
|
||
/* */
|
||
/* this is still under construction and therefore not documented */
|
||
/* */
|
||
/*----------------------------------------------------------------------*/
|
||
|
||
static void start_etir_record PARAMS ((bfd *abfd, int index, uquad offset, boolean justoffset));
|
||
static void sto_imm PARAMS ((bfd *abfd, evax_section *sptr, bfd_vma vaddr, int index));
|
||
static void end_etir_record PARAMS ((bfd *abfd));
|
||
|
||
static void
|
||
sto_imm (abfd, sptr, vaddr, index)
|
||
bfd *abfd;
|
||
evax_section *sptr;
|
||
bfd_vma vaddr;
|
||
int index;
|
||
{
|
||
int size;
|
||
int ssize;
|
||
unsigned char *cptr;
|
||
|
||
#if EVAX_DEBUG
|
||
evax_debug (8, "sto_imm %d bytes\n", sptr->size);
|
||
_bfd_hexdump (9, sptr->contents, (int)sptr->size, (int)vaddr);
|
||
#endif
|
||
|
||
ssize = sptr->size;
|
||
cptr = sptr->contents;
|
||
|
||
while (ssize > 0)
|
||
{
|
||
|
||
size = ssize; /* try all the rest */
|
||
|
||
if (_bfd_evax_output_check (abfd, size) < 0)
|
||
{ /* doesn't fit, split ! */
|
||
end_etir_record (abfd);
|
||
start_etir_record (abfd, index, vaddr, false);
|
||
size = _bfd_evax_output_check (abfd, 0); /* get max size */
|
||
if (size > ssize) /* more than what's left ? */
|
||
size = ssize;
|
||
}
|
||
|
||
_bfd_evax_output_begin (abfd, ETIR_S_C_STO_IMM, -1);
|
||
_bfd_evax_output_long (abfd, (unsigned long)(size));
|
||
_bfd_evax_output_dump (abfd, cptr, size);
|
||
_bfd_evax_output_flush (abfd);
|
||
|
||
#if EVAX_DEBUG
|
||
evax_debug (10, "dumped %d bytes\n", size);
|
||
_bfd_hexdump (10, cptr, (int)size, (int)vaddr);
|
||
#endif
|
||
|
||
vaddr += size;
|
||
ssize -= size;
|
||
cptr += size;
|
||
}
|
||
|
||
return;
|
||
}
|
||
|
||
/*-------------------------------------------------------------------*/
|
||
|
||
/* start ETIR record for section #index at virtual addr offset. */
|
||
|
||
static void
|
||
start_etir_record (abfd, index, offset, justoffset)
|
||
bfd *abfd;
|
||
int index;
|
||
uquad offset;
|
||
boolean justoffset;
|
||
{
|
||
if (!justoffset)
|
||
{
|
||
_bfd_evax_output_begin (abfd, EOBJ_S_C_ETIR, -1); /* one ETIR per section */
|
||
_bfd_evax_output_push (abfd);
|
||
}
|
||
|
||
_bfd_evax_output_begin (abfd, ETIR_S_C_STA_PQ, -1); /* push start offset */
|
||
_bfd_evax_output_long (abfd, (unsigned long)index);
|
||
_bfd_evax_output_quad (abfd, (uquad)offset);
|
||
_bfd_evax_output_flush (abfd);
|
||
|
||
_bfd_evax_output_begin (abfd, ETIR_S_C_CTL_SETRB, -1); /* start = pop() */
|
||
_bfd_evax_output_flush (abfd);
|
||
|
||
return;
|
||
}
|
||
|
||
|
||
/* end etir record */
|
||
static void
|
||
end_etir_record (abfd)
|
||
bfd *abfd;
|
||
{
|
||
_bfd_evax_output_pop (abfd);
|
||
_bfd_evax_output_end (abfd);
|
||
}
|
||
|
||
/* write section contents for bfd abfd */
|
||
|
||
int
|
||
_bfd_evax_write_etir (abfd)
|
||
bfd *abfd;
|
||
{
|
||
asection *section;
|
||
evax_section *sptr;
|
||
int nextoffset;
|
||
|
||
#if EVAX_DEBUG
|
||
evax_debug (2, "evax_write_etir(%p)\n", abfd);
|
||
#endif
|
||
|
||
_bfd_evax_output_alignment (abfd, 4);
|
||
|
||
nextoffset = 0;
|
||
PRIV(evax_linkage_index) = 1;
|
||
|
||
/* dump all other sections */
|
||
|
||
section = abfd->sections;
|
||
|
||
while (section != NULL)
|
||
{
|
||
|
||
#if EVAX_DEBUG
|
||
evax_debug (4, "writing %d. section '%s' (%d bytes)\n", section->index, section->name, (int)(section->_raw_size));
|
||
#endif
|
||
|
||
if (section->flags & SEC_RELOC)
|
||
{
|
||
int i;
|
||
|
||
if ((i = section->reloc_count) <= 0)
|
||
{
|
||
(*_bfd_error_handler) ("SEC_RELOC with no relocs in section %s",
|
||
section->name);
|
||
}
|
||
#if EVAX_DEBUG
|
||
else
|
||
{
|
||
arelent **rptr;
|
||
evax_debug (4, "%d relocations:\n", i);
|
||
rptr = section->orelocation;
|
||
while (i-- > 0)
|
||
{
|
||
evax_debug (4, "sym %s in sec %s, value %08lx, addr %08lx, off %08lx, len %d: %s\n",
|
||
(*(*rptr)->sym_ptr_ptr)->name,
|
||
(*(*rptr)->sym_ptr_ptr)->section->name,
|
||
(long)(*(*rptr)->sym_ptr_ptr)->value,
|
||
(*rptr)->address, (*rptr)->addend,
|
||
bfd_get_reloc_size((*rptr)->howto),
|
||
(*rptr)->howto->name);
|
||
rptr++;
|
||
}
|
||
}
|
||
#endif
|
||
}
|
||
|
||
if ((section->flags & SEC_HAS_CONTENTS)
|
||
&& (! bfd_is_com_section (section)))
|
||
{
|
||
bfd_vma vaddr; /* virtual addr in section */
|
||
|
||
sptr = _bfd_get_evax_section (abfd, section->index);
|
||
if (sptr == NULL)
|
||
{
|
||
bfd_set_error (bfd_error_no_contents);
|
||
return -1;
|
||
}
|
||
|
||
vaddr = (bfd_vma)(sptr->offset);
|
||
|
||
start_etir_record (abfd, section->index, (uquad) sptr->offset,
|
||
false);
|
||
|
||
while (sptr != NULL) /* one STA_PQ, CTL_SETRB per evax_section */
|
||
{
|
||
|
||
if (section->flags & SEC_RELOC) /* check for relocs */
|
||
{
|
||
arelent **rptr = section->orelocation;
|
||
int i = section->reloc_count;
|
||
for (;;)
|
||
{
|
||
bfd_size_type addr = (*rptr)->address;
|
||
int len = bfd_get_reloc_size ((*rptr)->howto);
|
||
if (sptr->offset < addr) /* sptr starts before reloc */
|
||
{
|
||
int before = addr - sptr->offset;
|
||
if (sptr->size <= before) /* complete before */
|
||
{
|
||
sto_imm (abfd, sptr, vaddr, section->index);
|
||
vaddr += sptr->size;
|
||
break;
|
||
}
|
||
else /* partly before */
|
||
{
|
||
int after = sptr->size - before;
|
||
sptr->size = before;
|
||
sto_imm (abfd, sptr, vaddr, section->index);
|
||
vaddr += sptr->size;
|
||
sptr->contents += before;
|
||
sptr->offset += before;
|
||
sptr->size = after;
|
||
}
|
||
}
|
||
else if (sptr->offset == addr) /* sptr starts at reloc */
|
||
{
|
||
asymbol *sym = *(*rptr)->sym_ptr_ptr;
|
||
asection *sec = sym->section;
|
||
|
||
switch ((*rptr)->howto->type)
|
||
{
|
||
case ALPHA_R_IGNORE:
|
||
break;
|
||
|
||
case ALPHA_R_REFLONG:
|
||
{
|
||
if (bfd_is_und_section (sym->section))
|
||
{
|
||
if (_bfd_evax_output_check (abfd,
|
||
strlen((char *)sym->name))
|
||
< 0)
|
||
{
|
||
end_etir_record (abfd);
|
||
start_etir_record (abfd,
|
||
section->index,
|
||
vaddr, false);
|
||
}
|
||
_bfd_evax_output_begin (abfd,
|
||
ETIR_S_C_STO_GBL_LW,
|
||
-1);
|
||
_bfd_evax_output_counted (abfd,
|
||
_bfd_evax_length_hash_symbol (abfd, sym->name, EOBJ_S_C_SYMSIZ));
|
||
_bfd_evax_output_flush (abfd);
|
||
}
|
||
else if (bfd_is_abs_section (sym->section))
|
||
{
|
||
if (_bfd_evax_output_check (abfd, 16) < 0)
|
||
{
|
||
end_etir_record (abfd);
|
||
start_etir_record (abfd,
|
||
section->index,
|
||
vaddr, false);
|
||
}
|
||
_bfd_evax_output_begin (abfd,
|
||
ETIR_S_C_STA_LW,
|
||
-1);
|
||
_bfd_evax_output_quad (abfd,
|
||
(uquad)sym->value);
|
||
_bfd_evax_output_flush (abfd);
|
||
_bfd_evax_output_begin (abfd,
|
||
ETIR_S_C_STO_LW,
|
||
-1);
|
||
_bfd_evax_output_flush (abfd);
|
||
}
|
||
else
|
||
{
|
||
if (_bfd_evax_output_check (abfd, 32) < 0)
|
||
{
|
||
end_etir_record (abfd);
|
||
start_etir_record (abfd,
|
||
section->index,
|
||
vaddr, false);
|
||
}
|
||
_bfd_evax_output_begin (abfd,
|
||
ETIR_S_C_STA_PQ,
|
||
-1);
|
||
_bfd_evax_output_long (abfd,
|
||
(unsigned long)(sec->index));
|
||
_bfd_evax_output_quad (abfd,
|
||
((uquad)(*rptr)->addend
|
||
+ (uquad)sym->value));
|
||
_bfd_evax_output_flush (abfd);
|
||
_bfd_evax_output_begin (abfd,
|
||
ETIR_S_C_STO_LW,
|
||
-1);
|
||
_bfd_evax_output_flush (abfd);
|
||
}
|
||
}
|
||
break;
|
||
|
||
case ALPHA_R_REFQUAD:
|
||
{
|
||
if (bfd_is_und_section (sym->section))
|
||
{
|
||
if (_bfd_evax_output_check (abfd,
|
||
strlen((char *)sym->name))
|
||
< 0)
|
||
{
|
||
end_etir_record (abfd);
|
||
start_etir_record (abfd,
|
||
section->index,
|
||
vaddr, false);
|
||
}
|
||
_bfd_evax_output_begin (abfd,
|
||
ETIR_S_C_STO_GBL,
|
||
-1);
|
||
_bfd_evax_output_counted (abfd,
|
||
_bfd_evax_length_hash_symbol (abfd, sym->name, EOBJ_S_C_SYMSIZ));
|
||
_bfd_evax_output_flush (abfd);
|
||
}
|
||
else if (bfd_is_abs_section (sym->section))
|
||
{
|
||
if (_bfd_evax_output_check (abfd, 16) < 0)
|
||
{
|
||
end_etir_record (abfd);
|
||
start_etir_record (abfd,
|
||
section->index,
|
||
vaddr, false);
|
||
}
|
||
_bfd_evax_output_begin (abfd,
|
||
ETIR_S_C_STA_QW,
|
||
-1);
|
||
_bfd_evax_output_quad (abfd,
|
||
(uquad)sym->value);
|
||
_bfd_evax_output_flush (abfd);
|
||
_bfd_evax_output_begin (abfd,
|
||
ETIR_S_C_STO_QW,
|
||
-1);
|
||
_bfd_evax_output_flush (abfd);
|
||
}
|
||
else
|
||
{
|
||
if (_bfd_evax_output_check (abfd, 32) < 0)
|
||
{
|
||
end_etir_record (abfd);
|
||
start_etir_record (abfd,
|
||
section->index,
|
||
vaddr, false);
|
||
}
|
||
_bfd_evax_output_begin (abfd,
|
||
ETIR_S_C_STA_PQ,
|
||
-1);
|
||
_bfd_evax_output_long (abfd,
|
||
(unsigned long)(sec->index));
|
||
_bfd_evax_output_quad (abfd,
|
||
((uquad)(*rptr)->addend
|
||
+ (uquad)sym->value));
|
||
_bfd_evax_output_flush (abfd);
|
||
_bfd_evax_output_begin (abfd,
|
||
ETIR_S_C_STO_OFF,
|
||
-1);
|
||
_bfd_evax_output_flush (abfd);
|
||
}
|
||
}
|
||
break;
|
||
|
||
case ALPHA_R_HINT:
|
||
{
|
||
int hint_size;
|
||
|
||
hint_size = sptr->size;
|
||
sptr->size = len;
|
||
sto_imm (abfd, sptr, vaddr, section->index);
|
||
sptr->size = hint_size;
|
||
#if 0
|
||
evax_output_begin(abfd, ETIR_S_C_STO_HINT_GBL, -1);
|
||
evax_output_long(abfd, (unsigned long)(sec->index));
|
||
evax_output_quad(abfd, (uquad)addr);
|
||
|
||
evax_output_counted(abfd, _bfd_evax_length_hash_symbol (abfd, sym->name, EOBJ_S_C_SYMSIZ));
|
||
evax_output_flush(abfd);
|
||
#endif
|
||
}
|
||
break;
|
||
case ALPHA_R_LINKAGE:
|
||
{
|
||
if (_bfd_evax_output_check (abfd, 64) < 0)
|
||
{
|
||
end_etir_record (abfd);
|
||
start_etir_record (abfd, section->index,
|
||
vaddr, false);
|
||
}
|
||
_bfd_evax_output_begin (abfd,
|
||
ETIR_S_C_STC_LP_PSB,
|
||
-1);
|
||
_bfd_evax_output_long (abfd,
|
||
(unsigned long)PRIV(evax_linkage_index));
|
||
PRIV(evax_linkage_index) += 2;
|
||
_bfd_evax_output_counted (abfd,
|
||
_bfd_evax_length_hash_symbol (abfd, sym->name, EOBJ_S_C_SYMSIZ));
|
||
_bfd_evax_output_byte (abfd, 0);
|
||
_bfd_evax_output_flush (abfd);
|
||
}
|
||
break;
|
||
|
||
case ALPHA_R_CODEADDR:
|
||
{
|
||
if (_bfd_evax_output_check (abfd,
|
||
strlen((char *)sym->name))
|
||
< 0)
|
||
{
|
||
end_etir_record (abfd);
|
||
start_etir_record (abfd,
|
||
section->index,
|
||
vaddr, false);
|
||
}
|
||
_bfd_evax_output_begin (abfd,
|
||
ETIR_S_C_STO_CA,
|
||
-1);
|
||
_bfd_evax_output_counted (abfd,
|
||
_bfd_evax_length_hash_symbol (abfd, sym->name, EOBJ_S_C_SYMSIZ));
|
||
_bfd_evax_output_flush (abfd);
|
||
}
|
||
break;
|
||
|
||
default:
|
||
(*_bfd_error_handler) ("Unhandled relocation %s",
|
||
(*rptr)->howto->name);
|
||
break;
|
||
}
|
||
|
||
vaddr += len;
|
||
|
||
if (len == sptr->size)
|
||
{
|
||
break;
|
||
}
|
||
else
|
||
{
|
||
sptr->contents += len;
|
||
sptr->offset += len;
|
||
sptr->size -= len;
|
||
i--;
|
||
rptr++;
|
||
}
|
||
}
|
||
else /* sptr starts after reloc */
|
||
{
|
||
i--; /* check next reloc */
|
||
rptr++;
|
||
}
|
||
|
||
if (i==0) /* all reloc checked */
|
||
{
|
||
if (sptr->size > 0)
|
||
{
|
||
sto_imm (abfd, sptr, vaddr, section->index); /* dump rest */
|
||
vaddr += sptr->size;
|
||
}
|
||
break;
|
||
}
|
||
} /* for (;;) */
|
||
} /* if SEC_RELOC */
|
||
else /* no relocs, just dump */
|
||
{
|
||
sto_imm (abfd, sptr, vaddr, section->index);
|
||
vaddr += sptr->size;
|
||
}
|
||
|
||
sptr = sptr->next;
|
||
|
||
} /* while (sptr != 0) */
|
||
|
||
end_etir_record (abfd);
|
||
|
||
} /* has_contents */
|
||
|
||
section = section->next;
|
||
}
|
||
|
||
_bfd_evax_output_alignment(abfd, 2);
|
||
return 0;
|
||
}
|
||
|
||
|
||
/* write traceback data for bfd abfd */
|
||
|
||
int
|
||
_bfd_evax_write_etbt (abfd)
|
||
bfd *abfd;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (2, "evax_write_etbt(%p)\n", abfd);
|
||
#endif
|
||
|
||
return 0;
|
||
}
|
||
|
||
|
||
/* write debug info for bfd abfd */
|
||
|
||
int
|
||
_bfd_evax_write_edbg (abfd)
|
||
bfd *abfd;
|
||
{
|
||
#if EVAX_DEBUG
|
||
evax_debug (2, "evax_write_edbg(%p)\n", abfd);
|
||
#endif
|
||
|
||
return 0;
|
||
}
|