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- /* evax-etir.c -- BFD back-end for ALPHA EVAX (openVMS/AXP) files.
- Copyright 1996 Free Software Foundation, Inc.
- ETIR record handling functions
-
- go and read the openVMS linker manual (esp. appendix B)
- if you don't know what's going on here :-)
-
- Written by Klaus KΣmpf (kkaempf@progis.de)
- of proGIS Softwareentwicklung, Aachen, Germany
-
- 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. */
-
-
- /* The following type abbreviations are used:
-
- cs counted string (ascii string with length byte)
- by byte (1 byte)
- sh short (2 byte, 16 bit)
- lw longword (4 byte, 32 bit)
- qw quadword (8 byte, 64 bit)
- da data stream */
-
- #include <stdio.h>
- #include <ctype.h>
-
- #include "bfd.h"
- #include "sysdep.h"
- #include "bfdlink.h"
- #include "libbfd.h"
-
- #include "evax.h"
-
- #if 0
- static void location_save
- PARAMS ((bfd *abfd, unsigned long index, unsigned long loc, int section));
- static unsigned long location_restore
- PARAMS ((bfd *abfd, unsigned long index, int *section));
- #endif /* 0 */
-
- static void image_set_ptr PARAMS ((bfd *abfd, int psect, uquad offset));
- static void image_inc_ptr PARAMS ((bfd *abfd, uquad offset));
- static void image_dump PARAMS ((bfd *abfd, unsigned char *ptr, int size, int offset));
- static void image_write_b PARAMS ((bfd *abfd, unsigned int value));
- static void image_write_w PARAMS ((bfd *abfd, unsigned int value));
- static void image_write_l PARAMS ((bfd *abfd, unsigned long value));
- static void image_write_q PARAMS ((bfd *abfd, uquad value));
-
- /*-----------------------------------------------------------------------------*/
-
- #if 0
-
- /* Save location counter at index */
-
- static void
- location_save (abfd, index, loc, section)
- bfd *abfd;
- unsigned long index;
- unsigned long loc;
- int section;
- {
- PRIV(location_stack)[index].value = loc;
- PRIV(location_stack)[index].psect = section;
-
- return;
- }
-
- /* Restore location counter from index */
-
- static unsigned long
- location_restore (abfd, index, section)
- bfd *abfd;
- unsigned long index;
- int *section;
- {
- if (section != NULL)
- *section = PRIV(location_stack)[index].psect;
- return PRIV(location_stack)[index].value;
- }
-
- #endif /* 0 */
-
- /* routines to fill sections contents during etir read */
-
- /* Initialize image buffer pointer to be filled */
-
- static void
- image_set_ptr (abfd, psect, offset)
- bfd *abfd;
- int psect;
- uquad offset;
- {
- #if EVAX_DEBUG
- evax_debug (4, "image_set_ptr(%d=%s, %d)\n",
- psect, PRIV(sections)[psect]->name, offset);
- #endif
-
- PRIV(image_ptr) = PRIV(sections)[psect]->contents + offset;
- return;
- }
-
-
- /* Increment image buffer pointer by offset */
-
- static void
- image_inc_ptr (abfd, offset)
- bfd *abfd;
- uquad offset;
- {
- #if EVAX_DEBUG
- evax_debug (4, "image_inc_ptr(%d)\n", offset);
- #endif
-
- PRIV(image_ptr) += offset;
-
- return;
- }
-
-
- /* Dump multiple bytes to section image */
-
- static void
- image_dump (abfd, ptr, size, offset)
- bfd *abfd;
- unsigned char *ptr;
- int size;
- int offset;
- {
- #if EVAX_DEBUG
- evax_debug (6, "image_dump from (%p, %d) to (%p)\n", ptr, size, PRIV(image_ptr));
- _bfd_hexdump (7, ptr, size, offset);
- #endif
-
- while (size-- > 0)
- *PRIV(image_ptr)++ = *ptr++;
- return;
- }
-
-
- /* Write byte to section image */
-
- static void
- image_write_b (abfd, value)
- bfd *abfd;
- unsigned int value;
- {
- #if EVAX_DEBUG
- evax_debug (6, "image_write_b(%02x)\n", (int)value);
- #endif
-
- *PRIV(image_ptr)++ = (value & 0xff);
- return;
- }
-
-
- /* Write 2-byte word to image */
-
- static void
- image_write_w (abfd, value)
- bfd *abfd;
- unsigned int value;
- {
- #if EVAX_DEBUG
- evax_debug (6, "image_write_w(%04x)\n", (int)value);
- #endif
-
- bfd_putl16 (value, PRIV(image_ptr));
- PRIV(image_ptr) += 2;
-
- return;
- }
-
-
- /* Write 4-byte long to image */
-
- static void
- image_write_l (abfd, value)
- bfd *abfd;
- unsigned long value;
- {
- #if EVAX_DEBUG
- evax_debug (6, "image_write_l(%08lx)\n", value);
- #endif
-
- bfd_putl32 (value, PRIV(image_ptr));
- PRIV(image_ptr) += 4;
-
- return;
- }
-
-
- /* Write 4-byte long to image */
-
- static void
- image_write_q (abfd, value)
- bfd *abfd;
- uquad value;
- {
- #if EVAX_DEBUG
- evax_debug (6, "image_write_q(%016lx)\n", value);
- #endif
-
- bfd_putl64 (value, PRIV(image_ptr));
- PRIV(image_ptr) += 8;
-
- return;
- }
-
-
- #define HIGHBIT(op) ((op & 0x80000000L) == 0x80000000L)
-
- /* etir_sta
-
- evax stack commands
-
- handle sta_xxx commands in etir section
- ptr points to data area in record
-
- see table B-8 of the openVMS linker manual */
-
- static boolean
- etir_sta (abfd, cmd, ptr)
- bfd *abfd;
- int cmd;
- unsigned char *ptr;
- {
-
- switch (cmd)
- {
- /* stack */
-
- /* stack global
- arg: cs symbol name
-
- stack 32 bit value of symbol (high bits set to 0) */
-
- case ETIR_S_C_STA_GBL:
- {
- char *name;
- evax_symbol_entry *entry;
-
- 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_STA_GBL: no symbol \"%s\"\n", name);
- #endif
- return false;
- }
- else
- {
- _bfd_evax_push (abfd, (uquad)(entry->symbol->value), -1);
- }
- }
- break;
-
- /* stack longword
- arg: lw value
-
- stack 32 bit value, sign extend to 64 bit */
-
- case ETIR_S_C_STA_LW:
- _bfd_evax_push (abfd, (uquad)bfd_getl32 (ptr), -1);
- break;
-
- /* stack global
- arg: qw value
-
- stack 64 bit value of symbol */
-
- case ETIR_S_C_STA_QW:
- _bfd_evax_push (abfd, (uquad)bfd_getl64(ptr), -1);
- break;
-
- /* stack psect base plus quadword offset
- arg: lw section index
- qw signed quadword offset (low 32 bits)
-
- stack qw argument and section index
- (see ETIR_S_C_STO_OFF, ETIR_S_C_CTL_SETRB) */
-
- case ETIR_S_C_STA_PQ:
- {
- uquad dummy;
- int psect;
-
- psect = bfd_getl32 (ptr);
- if (psect >= PRIV(egsd_sec_count))
- {
- (*_bfd_error_handler) ("Bad section index in ETIR_S_C_STA_PQ");
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- dummy = bfd_getl64 (ptr+4);
- _bfd_evax_push (abfd, dummy, psect);
- }
- break;
-
- /* all not supported */
-
- case ETIR_S_C_STA_LI:
- case ETIR_S_C_STA_MOD:
- case ETIR_S_C_STA_CKARG:
-
- (*_bfd_error_handler) ("Unsupported STA cmd %d", cmd);
- return false;
- break;
-
- default:
- (*_bfd_error_handler) ("Reserved STA cmd %d", cmd);
- return false;
- break;
- }
- return true;
- }
-
-
- /*
- etir_sto
-
- evax store commands
-
- handle sto_xxx commands in etir section
- ptr points to data area in record
-
- see table B-9 of the openVMS linker manual */
-
- static boolean
- etir_sto (abfd, cmd, ptr)
- bfd *abfd;
- int cmd;
- unsigned char *ptr;
- {
- uquad dummy;
- int psect;
-
- switch (cmd)
- {
-
- /* store byte: pop stack, write byte
- arg: - */
-
- case ETIR_S_C_STO_B:
- dummy = _bfd_evax_pop (abfd, &psect);
- #if 0
- if (is_share) /* FIXME */
- (*_bfd_error_handler) ("ETIR_S_C_STO_B: byte fixups not supported");
- #endif
- image_write_b (abfd, dummy & 0xff); /* FIXME: check top bits */
- break;
-
- /* store word: pop stack, write word
- arg: - */
-
- case ETIR_S_C_STO_W:
- dummy = _bfd_evax_pop (abfd, &psect);
- #if 0
- if (is_share) /* FIXME */
- (*_bfd_error_handler) ("ETIR_S_C_STO_B: word fixups not supported");
- #endif
- image_write_w (abfd, dummy & 0xffff); /* FIXME: check top bits */
- break;
-
- /* store longword: pop stack, write longword
- arg: - */
-
- case ETIR_S_C_STO_LW:
- dummy = _bfd_evax_pop (abfd, &psect);
- dummy += (PRIV(sections)[psect])->vma;
- image_write_l (abfd, dummy & 0xffffffff);/* FIXME: check top bits */
- #if 0 /* FIXME */
- if (is_rel)
- evax_debug (3, "ETIR_S_C_STO_LW: Relocation !\n");
- if (is_share)
- evax_debug (3, "ETIR_S_C_STO_LW: Fix-up share !\n");
- #endif
- break;
-
- /* store quadword: pop stack, write quadword
- arg: - */
-
- case ETIR_S_C_STO_QW:
- dummy = _bfd_evax_pop (abfd, &psect);
- dummy += (PRIV(sections)[psect])->vma;
- image_write_q(abfd, dummy); /* FIXME: check top bits */
- #if 0 /* FIXME */
- if (is_rel)
- evax_debug (3, "ETIR_S_C_STO_LW: Relocation !\n");
- if (is_share)
- evax_debug (3, "ETIR_S_C_STO_LW: Fix-up share !\n");
- #endif
- break;
-
- /* store immediate repeated: pop stack for repeat count
- arg: lw byte count
- da data */
-
- case ETIR_S_C_STO_IMMR:
- {
- unsigned long size;
-
- size = bfd_getl32 (ptr);
- dummy = (unsigned long)_bfd_evax_pop (abfd, NULL);
- while (dummy-- > 0L)
- image_dump (abfd, ptr+4, size, 0);
- }
- break;
-
- /* store global: write symbol value
- arg: cs global symbol name */
-
- case ETIR_S_C_STO_GBL:
- {
- 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)
- {
- (*_bfd_error_handler) ("ETIR_S_C_STO_GBL: no symbol \"%s\"",
- name);
- return false;
- }
- else
- image_write_q (abfd, (uquad)(entry->symbol->value)); /* FIXME, reloc */
- }
- break;
-
- /* store code address: write address of entry point
- arg: cs global symbol name (procedure) */
-
- case ETIR_S_C_STO_CA:
- {
- 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)
- {
- (*_bfd_error_handler) ("ETIR_S_C_STO_CA: no symbol \"%s\"",
- name);
- return false;
- }
- else
- image_write_q (abfd, (uquad)(entry->symbol->value)); /* FIXME, reloc */
- }
- break;
-
- /* not supported */
-
- case ETIR_S_C_STO_RB:
- 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
- arg: - */
-
- case ETIR_S_C_STO_OFF:
- {
- 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:
- (*_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;
- char uname[200];
- char *nptr, *uptr;
-
- #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_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);
- uptr = uname;
- nptr = (char *)sym->name;
- while (*nptr)
- {
- if (islower (*nptr))
- *uptr = toupper (*nptr);
- else
- *uptr = *nptr;
- nptr++;
- uptr++;
- }
- *uptr = 0;
- _bfd_evax_output_counted (abfd, uname);
- _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);
- uptr = uname;
- nptr = (char *)sym->name;
- while (*nptr)
- {
- if (islower (*nptr))
- *uptr = toupper (*nptr);
- else
- *uptr = *nptr;
- nptr++;
- uptr++;
- }
- *uptr = 0;
- _bfd_evax_output_counted (abfd, uname);
- _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);
- uptr = uname;
- nptr = (char *)(*(*rptr)->sym_ptr_ptr)->name;
- while (*nptr)
- {
- if (islower (*nptr))
- *uptr = toupper (*nptr);
- else
- *uptr = *nptr;
- nptr++;
- uptr++;
- }
- *uptr = 0;
-
- evax_output_counted(abfd, uname);
- evax_output_flush(abfd);
- #endif
- }
- break;
- #if 0
- case ALPHA_R_BRADDR:
- break;
- case ALPHA_R_SREL16:
- break;
- case ALPHA_R_SREL32:
- break;
- case ALPHA_R_SREL64:
- break;
- case ALPHA_R_OP_PUSH:
- break;
- case ALPHA_R_OP_STORE:
- break;
- case ALPHA_R_OP_PSUB:
- break;
- case ALPHA_R_OP_PRSHIFT:
- break;
- #endif
- 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;
- uptr = uname;
- nptr = (char *)(*(*rptr)->sym_ptr_ptr)->name;
- while (*nptr)
- {
- if (islower (*nptr))
- *uptr = toupper (*nptr);
- else
- *uptr = *nptr;
- nptr++;
- uptr++;
- }
- *uptr = 0;
- _bfd_evax_output_counted (abfd, uname);
- _bfd_evax_output_byte (abfd, 0);
- _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;
- }
-