MA 02110-1301, USA. */
/* TODO:
- o DMT
+ o overlayed sections
o PIC
o Generation of shared image
- o Generation of GST in image
o Relocation optimizations
o EISD for the stack
o Vectors isect
o 64 bits sections
o Entry point
+ o LIB$INITIALIZE
+ o protected sections (for messages)
...
*/
unsigned short flags;
/* Section and offset/value of the symbol. */
- unsigned int section;
unsigned int value;
+ asection *section;
/* Section and offset/value for the entry point (only for subprg). */
- unsigned int code_section;
+ asection *code_section;
unsigned int code_value;
/* Symbol vector offset. */
struct hdr_struct hdr_data; /* data from HDR/EMH record */
struct eom_struct eom_data; /* data from EOM/EEOM record */
+ /* Transfer addresses (entry points). */
+ bfd_vma transfer_address[4];
+
/* Array of GSD sections to get the correspond BFD one. */
unsigned int section_max; /* Size of the sections array. */
unsigned int section_count; /* Number of GSD sections. */
struct module *modules; /* list of all compilation units */
- struct dst_info *dst_info;
asection *dst_section;
unsigned int dst_ptr_offsets_count; /* # of offsets in following array */
/* These flags are deccrtl/vaxcrtl (openVMS 6.2 Alpha) compatible. */
-static struct sec_flags_struct evax_section_flags[] =
+static const struct sec_flags_struct evax_section_flags[] =
{
{ EVAX_ABS_NAME,
(EGPS__V_SHR),
(SEC_IN_MEMORY | SEC_DATA | SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD) }
};
-/* Retrieve bfd section flags by name and size. */
+/* Retrieve BFD section flags by name and size. */
static flagword
-vms_secflag_by_name (bfd *abfd ATTRIBUTE_UNUSED,
- struct sec_flags_struct *section_flags,
- char *name,
+vms_secflag_by_name (const struct sec_flags_struct *section_flags,
+ const char *name,
int hassize)
{
int i = 0;
return section_flags[i].flags_always;
}
-/* Retrieve vms section flags by name and size. */
+/* Retrieve VMS section flags by name and size. */
static flagword
-vms_esecflag_by_name (struct sec_flags_struct *section_flags,
- char *name,
- int hassize)
+vms_esecflag_by_name (const struct sec_flags_struct *section_flags,
+ const char *name,
+ int hassize)
{
int i = 0;
vms_section_data (section)->flags = old_flags;
vms_section_data (section)->no_flags = 0;
section->size = bfd_getl32 (egps->alloc);
- new_flags = vms_secflag_by_name (abfd, evax_section_flags, name,
+ new_flags = vms_secflag_by_name (evax_section_flags, name,
section->size > 0);
if (!(old_flags & EGPS__V_NOMOD))
{
if (!bfd_set_section_flags (abfd, section, new_flags))
return FALSE;
section->alignment_power = egps->align;
- align_addr = (1 << section->alignment_power);
- if ((base_addr % align_addr) != 0)
- base_addr += (align_addr - (base_addr % align_addr));
- section->vma = (bfd_vma)base_addr;
- base_addr += section->size;
- section->filepos = (unsigned int)-1;
+ if ((old_flags & EGPS__V_REL) != 0)
+ {
+ /* Give a non-overlapping vma to non absolute sections. */
+ align_addr = (1 << section->alignment_power);
+ if ((base_addr % align_addr) != 0)
+ base_addr += (align_addr - (base_addr % align_addr));
+ section->vma = (bfd_vma)base_addr;
+ base_addr += section->size;
+ }
+ else
+ section->vma = 0;
+ section->filepos = 0;
/* Append it to the section array. */
if (PRIV (section_count) >= PRIV (section_max))
struct vms_esdf *esdf = (struct vms_esdf *)vms_rec;
entry->value = bfd_getl64 (esdf->value);
- entry->section = bfd_getl32 (esdf->psindx);
+ entry->section = PRIV (sections)[bfd_getl32 (esdf->psindx)];
if (old_flags & EGSY__V_NORM)
{
PRIV (norm_sym_count)++;
entry->code_value = bfd_getl64 (esdf->code_address);
- entry->code_section = bfd_getl32 (esdf->ca_psindx);
+ entry->code_section =
+ PRIV (sections)[bfd_getl32 (esdf->ca_psindx)];
}
}
}
entry->symbol_vector = bfd_getl32 (egst->value);
- entry->section = bfd_getl32 (egst->psindx);
+ if (old_flags & EGSY__V_REL)
+ entry->section = PRIV (sections)[bfd_getl32 (egst->psindx)];
+ else
+ entry->section = bfd_abs_section_ptr;
+
entry->value = bfd_getl64 (egst->lp_2);
if (old_flags & EGSY__V_NORM)
PRIV (norm_sym_count)++;
entry->code_value = bfd_getl64 (egst->lp_1);
- entry->code_section = 0;
+ entry->code_section = bfd_abs_section_ptr;
}
}
break;
return RELC_SHR_BASE + PRIV2 (h->sym->owner, shr_index);
else
{
- /* Can this happen ? I'd like to see an example. */
+ /* Can this happen (non-relocatable symg) ? I'd like to see
+ an example. */
abort ();
}
}
}
static bfd_vma
-alpha_vms_get_sym_value (unsigned int sect, bfd_vma addr,
- struct alpha_vms_link_hash_entry *h)
+alpha_vms_get_sym_value (asection *sect, bfd_vma addr)
{
- asection *s;
-
- BFD_ASSERT (h && (h->root.type == bfd_link_hash_defined
- || h->root.type == bfd_link_hash_defweak));
-
- s = PRIV2 (h->root.u.def.section->owner, sections)[sect];
- return s->output_section->vma + s->output_offset + addr;
+ return sect->output_section->vma + sect->output_offset + addr;
}
static bfd_vma
else
{
op1 = alpha_vms_get_sym_value (h->sym->section,
- h->sym->value, h);
+ h->sym->value);
alpha_vms_add_qw_reloc (info);
}
}
else
{
op1 = alpha_vms_get_sym_value (h->sym->code_section,
- h->sym->code_value, h);
+ h->sym->code_value);
alpha_vms_add_qw_reloc (info);
}
}
else
{
op1 = alpha_vms_get_sym_value (h->sym->code_section,
- h->sym->code_value, h);
+ h->sym->code_value);
op2 = alpha_vms_get_sym_value (h->sym->section,
- h->sym->value, h);
+ h->sym->value);
}
}
else
struct vms_internal_eisd_map *eisd;
asection *dst;
asection *dmt;
+ file_ptr gst_filepos = 0;
+ unsigned int lnkflags = 0;
/* Build the EIHD. */
PRIV (file_pos) = EIHD__C_LENGTH;
bfd_putl32 ((sizeof (eihd) + VMS_BLOCK_SIZE - 1) / VMS_BLOCK_SIZE,
eihd.hdrblkcnt);
- bfd_putl32 (0, eihd.lnkflags);
bfd_putl32 (0, eihd.ident);
bfd_putl32 (0, eihd.sysver);
bfd_putl32 (sizeof (struct vms_eiha), eiha->size);
bfd_putl32 (0, eiha->spare);
- bfd_putl32 (0x00000340, eiha->tfradr1); /* SYS$IMGACT */
- bfd_putl32 (0xffffffff, eiha->tfradr1_h);
- bfd_putl64 (bfd_get_start_address (abfd), eiha->tfradr2);
- bfd_putl64 (0, eiha->tfradr3);
- bfd_putl64 (0, eiha->tfradr4);
+ bfd_putl64 (PRIV (transfer_address[0]), eiha->tfradr1);
+ bfd_putl64 (PRIV (transfer_address[1]), eiha->tfradr2);
+ bfd_putl64 (PRIV (transfer_address[2]), eiha->tfradr3);
+ bfd_putl64 (PRIV (transfer_address[3]), eiha->tfradr4);
bfd_putl64 (0, eiha->inishr);
/* Alloc EIHI. */
if (dmt != NULL)
{
+ lnkflags |= EIHD__M_DBGDMT;
bfd_putl32 ((dmt->filepos / VMS_BLOCK_SIZE) + 1, eihs->dmtvbn);
bfd_putl32 (dmt->size, eihs->dmtsize);
}
+ if (PRIV (gsd_sym_count) != 0)
+ {
+ alpha_vms_file_position_block (abfd);
+ gst_filepos = PRIV (file_pos);
+ bfd_putl32 ((gst_filepos / VMS_BLOCK_SIZE) + 1, eihs->gstvbn);
+ bfd_putl32 ((PRIV (gsd_sym_count) + 4) / 5 + 4, eihs->gstsize);
+ }
}
/* Write EISD in hdr. */
(eisd, (struct vms_eisd *)((char *)&eihd + eisd->file_pos));
/* Write first block. */
+ bfd_putl32 (lnkflags, eihd.lnkflags);
if (bfd_bwrite (&eihd, sizeof (eihd), abfd) != sizeof (eihd))
return FALSE;
}
}
+ /* Write GST. */
+ if (gst_filepos != 0)
+ {
+ struct vms_rec_wr *recwr = &PRIV (recwr);
+ unsigned int i;
+
+ _bfd_vms_write_emh (abfd);
+ _bfd_vms_write_lmn (abfd, "GNU LD");
+
+ /* PSC for the absolute section. */
+ _bfd_vms_output_begin (recwr, EOBJ__C_EGSD);
+ _bfd_vms_output_long (recwr, 0);
+ _bfd_vms_output_begin_subrec (recwr, EGSD__C_PSC);
+ _bfd_vms_output_short (recwr, 0);
+ _bfd_vms_output_short (recwr, EGPS__V_PIC | EGPS__V_LIB | EGPS__V_RD);
+ _bfd_vms_output_long (recwr, 0);
+ _bfd_vms_output_counted (recwr, ".$$ABS$$.");
+ _bfd_vms_output_end_subrec (recwr);
+ _bfd_vms_output_end (abfd, recwr);
+
+ for (i = 0; i < PRIV (gsd_sym_count); i++)
+ {
+ struct vms_symbol_entry *sym = PRIV (syms)[i];
+ char *hash;
+ bfd_vma val;
+ bfd_vma ep;
+
+ if ((i % 5) == 0)
+ {
+ _bfd_vms_output_alignment (recwr, 8);
+ _bfd_vms_output_begin (recwr, EOBJ__C_EGSD);
+ _bfd_vms_output_long (recwr, 0);
+ }
+ _bfd_vms_output_begin_subrec (recwr, EGSD__C_SYMG);
+ _bfd_vms_output_short (recwr, 0); /* Data type, alignment. */
+ _bfd_vms_output_short (recwr, sym->flags);
+
+ if (sym->code_section)
+ ep = alpha_vms_get_sym_value (sym->code_section, sym->code_value);
+ else
+ {
+ BFD_ASSERT (sym->code_value == 0);
+ ep = 0;
+ }
+ val = alpha_vms_get_sym_value (sym->section, sym->value);
+ _bfd_vms_output_quad
+ (recwr, sym->typ == EGSD__C_SYMG ? sym->symbol_vector : val);
+ _bfd_vms_output_quad (recwr, ep);
+ _bfd_vms_output_quad (recwr, val);
+ _bfd_vms_output_long (recwr, 0);
+ hash = _bfd_vms_length_hash_symbol (abfd, sym->name, EOBJ__C_SYMSIZ);
+ _bfd_vms_output_counted (recwr, hash);
+ _bfd_vms_output_end_subrec (recwr);
+ if ((i % 5) == 4)
+ _bfd_vms_output_end (abfd, recwr);
+ }
+ if ((i % 5) != 0)
+ _bfd_vms_output_end (abfd, recwr);
+
+ if (!_bfd_vms_write_eeom (abfd))
+ return FALSE;
+ }
return TRUE;
}
\f
unsigned int symnum;
int last_index = -1;
char dummy_name[10];
- char *sname;
+ const char *sname;
flagword new_flags, old_flags;
int abs_section_index = 0;
struct vms_rec_wr *recwr = &PRIV (recwr);
/* Don't know if this is necessary for the linker but for now it keeps
vms_slurp_gsd happy. */
- sname = (char *)section->name;
+ sname = section->name;
if (*sname == '.')
{
/* Remove leading dot. */
char *hash;
symbol = abfd->outsymbols[symnum];
+ old_flags = symbol->flags;
+
+ /* Work-around a missing feature: consider __main as the main entry point. */
if (*(symbol->name) == '_')
{
if (strcmp (symbol->name, "__main") == 0)
bfd_set_start_address (abfd, (bfd_vma)symbol->value);
}
- old_flags = symbol->flags;
+ /* Only put in the GSD the global and the undefined symbols. */
if (old_flags & BSF_FILE)
continue;
- if ((old_flags & BSF_GLOBAL) == 0 /* Not xdef... */
- && !bfd_is_und_section (symbol->section) /* and not xref... */
- && !((old_flags & BSF_SECTION_SYM) != 0 /* and not LIB$INITIALIZE. */
- && strcmp (symbol->section->name, "LIB$INITIALIZE") == 0))
- continue;
+ if ((old_flags & BSF_GLOBAL) == 0 && !bfd_is_und_section (symbol->section))
+ {
+ /* If the LIB$INITIIALIZE section is present, add a reference to
+ LIB$INITIALIZE symbol. FIXME: this should be done explicitely
+ in the assembly file. */
+ if (!((old_flags & BSF_SECTION_SYM) != 0
+ && strcmp (symbol->section->name, "LIB$INITIALIZE") == 0))
+ continue;
+ }
/* 13 bytes egsd, max 64 chars name -> should be 77 bytes. */
if (_bfd_vms_output_check (recwr, 80) < 0)
if (e->flags & EGSY__V_NORM)
flags |= BSF_FUNCTION;
value = e->value;
- sec = PRIV (sections)[e->section];
+ sec = e->section;
}
else
{
if (e->flags & EGSY__V_NORM)
flags |= BSF_FUNCTION;
- value = e->symbol_vector;
-
- /* Adding this offset is necessary in order for GDB to
- read the DWARF-2 debug info from shared libraries. */
- if ((abfd->flags & DYNAMIC) && strstr (name, "$DWARF2.DEBUG") != 0)
- value += PRIV (symvva);
-
+ value = e->value;
+ /* sec = e->section; */
sec = bfd_abs_section_ptr;
-#if 0
- /* Find containing section. */
- {
- bfd_vma sbase = 0;
- asection *s;
-
- for (s = abfd->sections; s; s = s->next)
- {
- if (value >= s->vma
- && s->vma > sbase
- && !(s->flags & SEC_COFF_SHARED_LIBRARY)
- && (s->size > 0 || !(e->flags & EGSY__V_REL)))
- {
- sbase = s->vma;
- sec = s;
- }
- }
- value -= sbase;
- }
-#endif
break;
default:
switch (e->typ)
{
case EGSD__C_SYM:
- if ((e->flags & EGSY__V_DEF) && (e->flags & EGSY__V_NORM))
- {
- value = e->code_value;
- sec = PRIV (sections)[e->code_section];
- }
- else
- continue;
- break;
-
case EGSD__C_SYMG:
if ((e->flags & EGSY__V_DEF) && (e->flags & EGSY__V_NORM))
{
- bfd_vma sbase = 0;
- asection *s;
-
value = e->code_value;
-
- /* Find containing section. */
- for (s = abfd->sections; s; s = s->next)
- {
- if (value >= s->vma
- && s->vma > sbase
- && !(s->flags & SEC_COFF_SHARED_LIBRARY)
- && (s->size > 0 || !(e->flags & EGSY__V_REL)))
- {
- sbase = s->vma;
- sec = s;
- }
- }
- value -= sbase;
+ sec = e->code_section;
}
else
continue;
break;
default:
- abort ();
+ continue;
}
l = strlen (name);
sec_len += len;
}
break;
+ case ETIR__C_STO_GBL_LW:
+ fprintf (file, _("STO_GBL_LW (store global longword) %.*s\n"),
+ buf[0], buf + 1);
+ break;
case ETIR__C_STO_LP_PSB:
fprintf (file, _("STO_OFF (store LP with procedure signature)\n"));
break;
return TRUE;
}
+/* Called by bfd_link_hash_traverse to fill the symbol table.
+ Return FALSE in case of failure. */
+
+static bfd_boolean
+alpha_vms_link_output_symbol (struct bfd_link_hash_entry *hc, void *infov)
+{
+ struct bfd_link_info *info = (struct bfd_link_info *)infov;
+ struct alpha_vms_link_hash_entry *h = (struct alpha_vms_link_hash_entry *)hc;
+ struct vms_symbol_entry *sym;
+
+ switch (h->root.type)
+ {
+ case bfd_link_hash_new:
+ case bfd_link_hash_undefined:
+ abort ();
+ case bfd_link_hash_undefweak:
+ return TRUE;
+ case bfd_link_hash_defined:
+ case bfd_link_hash_defweak:
+ {
+ asection *sec = h->root.u.def.section;
+
+ /* FIXME: this is certainly a symbol from a dynamic library. */
+ if (bfd_is_abs_section (sec))
+ return TRUE;
+
+ if (sec->owner->flags & DYNAMIC)
+ return TRUE;
+ }
+ break;
+ case bfd_link_hash_common:
+ break;
+ case bfd_link_hash_indirect:
+ case bfd_link_hash_warning:
+ return TRUE;
+ }
+
+ /* Do not write not kept symbols. */
+ if (info->strip == strip_some
+ && bfd_hash_lookup (info->keep_hash, h->root.root.string,
+ FALSE, FALSE) != NULL)
+ return TRUE;
+
+ if (h->sym == NULL)
+ {
+ /* This symbol doesn't come from a VMS object. So we suppose it is
+ a data. */
+ int len = strlen (h->root.root.string);
+
+ sym = (struct vms_symbol_entry *)bfd_zalloc (info->output_bfd,
+ sizeof (*sym) + len);
+ if (sym == NULL)
+ abort ();
+ sym->namelen = len;
+ memcpy (sym->name, h->root.root.string, len);
+ sym->name[len] = 0;
+ sym->owner = info->output_bfd;
+
+ sym->typ = EGSD__C_SYMG;
+ sym->data_type = 0;
+ sym->flags = EGSY__V_DEF | EGSY__V_REL;
+ sym->symbol_vector = h->root.u.def.value;
+ sym->section = h->root.u.def.section;
+ sym->value = h->root.u.def.value;
+ }
+ else
+ sym = h->sym;
+
+ if (!add_symbol_entry (info->output_bfd, sym))
+ return FALSE;
+
+ return TRUE;
+}
+
static bfd_boolean
alpha_vms_bfd_final_link (bfd *abfd, struct bfd_link_info *info)
{
}
#endif
+ /* Generate the symbol table. */
+ BFD_ASSERT (PRIV (syms) == NULL);
+ if (info->strip != strip_all)
+ bfd_link_hash_traverse (info->hash, alpha_vms_link_output_symbol, info);
+
/* Find the entry point. */
if (bfd_get_start_address (abfd) == 0)
{
}
}
+ /* Set transfer addresses. */
+ {
+ int i;
+ struct bfd_link_hash_entry *h;
+
+ i = 0;
+ PRIV (transfer_address[i++]) = 0xffffffff00000340ULL; /* SYS$IMGACT */
+ h = bfd_link_hash_lookup (info->hash, "LIB$INITIALIZE", FALSE, FALSE, TRUE);
+ if (h != NULL && h->type == bfd_link_hash_defined)
+ PRIV (transfer_address[i++]) =
+ alpha_vms_get_sym_value (h->u.def.section, h->u.def.value);
+ PRIV (transfer_address[i++]) = bfd_get_start_address (abfd);
+ while (i < 4)
+ PRIV (transfer_address[i++]) = 0;
+ }
+
/* Allocate contents. */
base_addr = (bfd_vma)-1;
last_addr = 0;
alpha_vms_link_hash (info)->base_addr = base_addr;
/* Create the DMT section, if necessary. */
- dst = PRIV (dst_section);
+ BFD_ASSERT (PRIV (dst_section) == NULL);
+ dst = bfd_get_section_by_name (abfd, "$DST$");
if (dst != NULL && dst->size == 0)
dst = NULL;
if (dst != NULL)
{
+ PRIV (dst_section) = dst;
dmt = bfd_make_section_anyway_with_flags
(info->output_bfd, "$DMT$",
SEC_DEBUGGING | SEC_HAS_CONTENTS | SEC_LINKER_CREATED);
if (section->used_by_bfd == NULL)
return FALSE;
- if (strcmp (bfd_get_section_name (abfd, section), "$DST$") == 0)
- PRIV (dst_section) = section;
-
/* Create the section symbol. */
return _bfd_generic_new_section_hook (abfd, section);
}
if (ret == NULL)
return;
- if (sec == 0)
+ if (sec == NULL)
ret->type = 'U';
else if (bfd_is_com_section (sec))
ret->type = 'C';
{_bfd_dummy_target, alpha_vms_object_p, /* bfd_check_format. */
_bfd_vms_lib_alpha_archive_p, _bfd_dummy_target},
{bfd_false, alpha_vms_mkobject, /* bfd_set_format. */
- _bfd_vms_lib_mkarchive, bfd_false},
+ _bfd_vms_lib_alpha_mkarchive, bfd_false},
{bfd_false, alpha_vms_write_object_contents, /* bfd_write_contents. */
_bfd_vms_lib_write_archive_contents, bfd_false},
projects / deliverable / binutils-gdb.git / blobdiff