diff options
Diffstat (limited to 'bfd/vms-alpha.c')
| -rw-r--r-- | bfd/vms-alpha.c | 176 |
1 files changed, 127 insertions, 49 deletions
diff --git a/bfd/vms-alpha.c b/bfd/vms-alpha.c index 294bd90..92d0693 100644 --- a/bfd/vms-alpha.c +++ b/bfd/vms-alpha.c @@ -89,6 +89,7 @@ #define ALPHA_R_BSR 15 #define ALPHA_R_LDA 16 #define ALPHA_R_BOH 17 + /* These are used with DST_S_C_LINE_NUM. */ #define DST_S_C_LINE_NUM_HEADER_SIZE 4 @@ -291,7 +292,6 @@ struct vms_private_data_struct /* Content reading. */ asection *image_section; /* section for image_ptr */ file_ptr image_offset; /* Offset for image_ptr. */ - bfd_boolean image_autoextend; /* Resize section if necessary. */ struct module *modules; /* list of all compilation units */ @@ -1383,30 +1383,6 @@ dst_retrieve_location (bfd *abfd, unsigned int loc) return PRIV (dst_ptr_offsets)[loc]; } -/* Check that the DST section is big enough for the specified - amount of bytes. */ - -static void -dst_check_allocation (bfd *abfd, unsigned int size) -{ - asection *section = PRIV (image_section); - - section->size += size; - - /* Grow the section as necessary */ - if (section->size <= section->rawsize) - return; - do - { - if (section->rawsize == 0) - section->rawsize = 1024; - else - section->rawsize *= 2; - } - while (section->size > section->rawsize); - section->contents = bfd_realloc (section->contents, section->rawsize); -} - /* Write multiple bytes to section image. */ static bfd_boolean @@ -1418,9 +1394,6 @@ image_write (bfd *abfd, unsigned char *ptr, int size) _bfd_hexdump (9, ptr, size, 0); #endif - if (PRIV (image_autoextend)) - dst_check_allocation (abfd, size); - if (PRIV (image_section)->contents != NULL) { asection *sec = PRIV (image_section); @@ -1667,6 +1640,10 @@ alpha_vms_fix_sec_rel (bfd *abfd, struct bfd_link_info *info, return vma + sec->vma; } +/* Read an ETIR record from ABFD. If INFO is not null, put the content into + the output section (used during linking). + Return FALSE in case of error. */ + static bfd_boolean _bfd_vms_slurp_etir (bfd *abfd, struct bfd_link_info *info) { @@ -2263,11 +2240,11 @@ vms_slurp_debug (bfd *abfd) PRIV (image_section) = section; PRIV (image_offset) = section->size; - PRIV (image_autoextend) = FALSE; if (!_bfd_vms_slurp_etir (abfd, NULL)) return FALSE; + section->size = PRIV (image_offset); return TRUE; } @@ -2279,7 +2256,7 @@ _bfd_vms_slurp_edbg (bfd *abfd) { vms_debug2 ((2, "EDBG\n")); - abfd->flags |= (HAS_DEBUG | HAS_LINENO); + abfd->flags |= HAS_DEBUG | HAS_LINENO; return vms_slurp_debug (abfd); } @@ -2334,21 +2311,20 @@ _bfd_vms_slurp_eeom (bfd *abfd) static bfd_boolean _bfd_vms_slurp_object_records (bfd * abfd) { - int err, new_type, type = -1; + bfd_boolean err; + int type; do { vms_debug2 ((7, "reading at %08lx\n", (unsigned long)bfd_tell (abfd))); - new_type = _bfd_vms_get_object_record (abfd); - if (new_type < 0) + type = _bfd_vms_get_object_record (abfd); + if (type < 0) { vms_debug2 ((2, "next_record failed\n")); return FALSE; } - type = new_type; - switch (type) { case EOBJ__C_EMH: @@ -2598,6 +2574,8 @@ alpha_vms_file_position_block (bfd *abfd) PRIV (file_pos) -= (PRIV (file_pos) % VMS_BLOCK_SIZE); } +/* Convert from internal structure SRC to external structure DST. */ + static void alpha_vms_swap_eisd_out (struct vms_internal_eisd_map *src, struct vms_eisd *dst) @@ -2636,6 +2614,9 @@ alpha_vms_append_extra_eisd (bfd *abfd, struct vms_internal_eisd_map *eisd) PRIV (gbl_eisd_tail) = eisd; } +/* Create an EISD for shared image SHRIMG. + Return FALSE in case of error. */ + static bfd_boolean alpha_vms_create_eisd_for_shared (bfd *abfd, bfd *shrimg) { @@ -2677,6 +2658,9 @@ alpha_vms_create_eisd_for_shared (bfd *abfd, bfd *shrimg) return TRUE; } +/* Create an EISD for section SEC. + Return FALSE in case of failure. */ + static bfd_boolean alpha_vms_create_eisd_for_section (bfd *abfd, asection *sec) { @@ -2732,6 +2716,9 @@ alpha_vms_create_eisd_for_section (bfd *abfd, asection *sec) return TRUE; } +/* Layout executable ABFD and write it to the disk. + Return FALSE in case of failure. */ + static bfd_boolean alpha_vms_write_exec (bfd *abfd) { @@ -2743,7 +2730,9 @@ alpha_vms_write_exec (bfd *abfd) struct vms_internal_eisd_map *first_eisd; struct vms_internal_eisd_map *eisd; asection *dst; + asection *dmt; + /* Build the EIHD. */ PRIV (file_pos) = EIHD__C_LENGTH; memset (&eihd, 0, sizeof (eihd)); @@ -2821,9 +2810,8 @@ alpha_vms_write_exec (bfd *abfd) eihi->imgbid[0] = 0; /* Alloc EIHS. */ - dst = bfd_get_section_by_name (abfd, "$DST$"); - if (dst == NULL || dst->size == 0) - dst = bfd_get_section_by_name (abfd, "$TBT$"); + dst = PRIV (dst_section); + dmt = bfd_get_section_by_name (abfd, "$DMT$"); if (dst != NULL && dst->size != 0) { eihs = (struct vms_eihs *)((char *) &eihd + PRIV (file_pos)); @@ -2840,7 +2828,7 @@ alpha_vms_write_exec (bfd *abfd) bfd_putl32 (0, eihs->dmtsize); } - /* One per section. */ + /* One EISD per section. */ for (sec = abfd->sections; sec; sec = sec->next) { if (!alpha_vms_create_eisd_for_section (abfd, sec)) @@ -2920,6 +2908,12 @@ alpha_vms_write_exec (bfd *abfd) { bfd_putl32 ((dst->filepos / VMS_BLOCK_SIZE) + 1, eihs->dstvbn); bfd_putl32 (dst->size, eihs->dstsize); + + if (dmt != NULL) + { + bfd_putl32 ((dmt->filepos / VMS_BLOCK_SIZE) + 1, eihs->dmtvbn); + bfd_putl32 (dmt->size, eihs->dmtsize); + } } /* Write EISD in hdr. */ @@ -7362,8 +7356,8 @@ evax_bfd_print_image (bfd *abfd, FILE *file) (unsigned)bfd_getl32 (eihs.minorid)); dst_vbn = bfd_getl32 (eihs.dstvbn); dst_size = bfd_getl32 (eihs.dstsize); - fprintf (file, _(" debug symbol table : vbn: %u, size: %u\n"), - dst_vbn, dst_size); + fprintf (file, _(" debug symbol table : vbn: %u, size: %u (0x%x)\n"), + dst_vbn, dst_size, dst_size); gst_vbn = bfd_getl32 (eihs.gstvbn); gst_size = bfd_getl32 (eihs.gstsize); fprintf (file, _(" global symbol table: vbn: %u, records: %u\n"), @@ -7499,7 +7493,7 @@ evax_bfd_print_image (bfd *abfd, FILE *file) } count = bfd_getl16 (dmth.psect_count); fprintf (file, - _(" module address: 0x%08x, size: 0x%08x, (%u psect)\n"), + _(" module address: 0x%08x, size: 0x%08x, (%u psects)\n"), (unsigned)bfd_getl32 (dmth.modbeg), (unsigned)bfd_getl32 (dmth.size), count); dmt_size -= sizeof (dmth); @@ -7745,7 +7739,7 @@ vms_bfd_print_private_bfd_data (bfd *abfd, void *ptr) /* Linking. */ -/* Slurp an ordered set of VMS object records. */ +/* Slurp ETIR/EDBG/ETBT VMS object records. */ static bfd_boolean alpha_vms_read_sections_content (bfd *abfd, struct bfd_link_info *info) @@ -7758,8 +7752,6 @@ alpha_vms_read_sections_content (bfd *abfd, struct bfd_link_info *info) if (bfd_seek (abfd, 0, SEEK_SET) != 0) return FALSE; - PRIV (image_autoextend) = FALSE; - cur_section = NULL; cur_offset = 0; @@ -7769,6 +7761,7 @@ alpha_vms_read_sections_content (bfd *abfd, struct bfd_link_info *info) { if (info->strip == strip_all || info->strip == strip_debugger) { + /* Discard the DST section. */ dst_offset = 0; dst_section = NULL; } @@ -7805,9 +7798,7 @@ alpha_vms_read_sections_content (bfd *abfd, struct bfd_link_info *info) continue; PRIV (image_section) = dst_section; PRIV (image_offset) = dst_offset; - PRIV (image_autoextend) = TRUE; res = _bfd_vms_slurp_etir (abfd, info); - PRIV (image_autoextend) = FALSE; dst_offset = PRIV (image_offset); break; case EOBJ__C_EEOM: @@ -8372,6 +8363,7 @@ alpha_vms_bfd_final_link (bfd *abfd, struct bfd_link_info *info) asection *fixupsec; bfd_vma base_addr; bfd_vma last_addr; + asection *dst; bfd_get_outsymbols (abfd) = NULL; bfd_get_symcount (abfd) = 0; @@ -8415,7 +8407,7 @@ alpha_vms_bfd_final_link (bfd *abfd, struct bfd_link_info *info) } #endif - /* Find entry point. */ + /* Find the entry point. */ if (bfd_get_start_address (abfd) == 0) { bfd *startbfd = NULL; @@ -8454,7 +8446,7 @@ alpha_vms_bfd_final_link (bfd *abfd, struct bfd_link_info *info) } } - /* Allocate content. */ + /* Allocate contents. */ base_addr = (bfd_vma)-1; last_addr = 0; for (o = abfd->sections; o != NULL; o = o->next) @@ -8474,6 +8466,7 @@ alpha_vms_bfd_final_link (bfd *abfd, struct bfd_link_info *info) } } + /* Create the fixup section. */ fixupsec = bfd_make_section_anyway_with_flags (info->output_bfd, "$FIXUP$", SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_LINKER_CREATED); @@ -8524,6 +8517,91 @@ alpha_vms_bfd_final_link (bfd *abfd, struct bfd_link_info *info) if (!alpha_vms_build_fixups (info)) return FALSE; + /* Compute the DMT. */ + dst = PRIV (dst_section); + if (dst != NULL && dst->size == 0) + dst = NULL; + if (dst != NULL) + { + asection *dmt; + int pass; + unsigned char *contents = NULL; + + dmt = bfd_make_section_anyway_with_flags + (info->output_bfd, "$DMT$", + SEC_DEBUGGING | SEC_HAS_CONTENTS | SEC_LINKER_CREATED); + if (dmt == NULL) + return FALSE; + + /* In pass 1, compute the size. In pass 2, write the DMT contents. */ + for (pass = 0; pass < 2; pass++) + { + unsigned int off = 0; + + /* For each object file (ie for each module). */ + for (sub = info->input_bfds; sub != NULL; sub = sub->link_next) + { + asection *sub_dst; + struct vms_dmt_header *dmth = NULL; + unsigned int psect_count; + + /* Skip this module if it has no DST. */ + sub_dst = PRIV2 (sub, dst_section); + if (sub_dst == NULL || sub_dst->size == 0) + continue; + + if (pass == 1) + { + /* Write the header. */ + dmth = (struct vms_dmt_header *)(contents + off); + bfd_putl32 (sub_dst->output_offset, dmth->modbeg); + bfd_putl32 (sub_dst->size, dmth->size); + } + + off += sizeof (struct vms_dmt_header); + psect_count = 0; + + /* For each section (ie for each psect). */ + for (o = sub->sections; o != NULL; o = o->next) + { + /* Only consider interesting sections. */ + if (!(o->flags & SEC_ALLOC)) + continue; + if (o->flags & SEC_LINKER_CREATED) + continue; + + if (pass == 1) + { + /* Write an entry. */ + struct vms_dmt_psect *dmtp; + + dmtp = (struct vms_dmt_psect *)(contents + off); + bfd_putl32 (o->output_offset + o->output_section->vma, + dmtp->start); + bfd_putl32 (o->size, dmtp->length); + psect_count++; + } + off += sizeof (struct vms_dmt_psect); + } + if (pass == 1) + bfd_putl32 (psect_count, dmth->psect_count); + } + + if (pass == 0) + { + contents = bfd_zalloc (info->output_bfd, off); + if (contents == NULL) + return FALSE; + dmt->contents = contents; + dmt->size = off; + } + else + { + BFD_ASSERT (off == dmt->size); + } + } + } + return TRUE; } |