static void alpha_vms_add_fixup_ca (struct bfd_link_info *, bfd *, bfd *);
static void alpha_vms_add_fixup_qr (struct bfd_link_info *, bfd *, bfd *,
bfd_vma);
+static void alpha_vms_add_fixup_lr (struct bfd_link_info *, unsigned int,
+ bfd_vma);
static void alpha_vms_add_lw_reloc (struct bfd_link_info *info);
static void alpha_vms_add_qw_reloc (struct bfd_link_info *info);
-static void alpha_vms_add_lw_fixup (struct bfd_link_info *, unsigned int,
- bfd_vma);
struct vector_type
{
_bfd_vms_slurp_egsd (bfd *abfd)
{
int gsd_type, gsd_size;
- asection *section;
unsigned char *vms_rec;
- flagword new_flags, old_flags;
- char *name;
unsigned long base_addr;
- unsigned long align_addr;
vms_debug2 ((2, "EGSD\n"));
switch (gsd_type)
{
case EGSD__C_PSC:
+ /* Program section definition. */
{
- /* Program section definition. */
struct vms_egps *egps = (struct vms_egps *)vms_rec;
-
- name = _bfd_vms_save_counted_string (&egps->namlng);
- section = bfd_make_section (abfd, name);
- if (!section)
- return FALSE;
+ flagword new_flags, old_flags;
+ asection *section;
old_flags = bfd_getl16 (egps->flags);
- 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 (evax_section_flags, name,
- section->size > 0);
- if (!(old_flags & EGPS__V_NOMOD) && section->size > 0)
+
+ if ((old_flags & EGPS__V_REL) == 0)
{
- new_flags |= SEC_HAS_CONTENTS;
- if (old_flags & EGPS__V_REL)
- new_flags |= SEC_RELOC;
+ /* Use the global absolute section for all absolute sections. */
+ section = bfd_abs_section_ptr;
}
- if (!bfd_set_section_flags (abfd, section, new_flags))
- return FALSE;
- section->alignment_power = egps->align;
- if ((old_flags & EGPS__V_REL) != 0)
+ else
{
+ char *name;
+ unsigned long align_addr;
+
+ name = _bfd_vms_save_counted_string (&egps->namlng);
+
+ section = bfd_make_section (abfd, name);
+ if (!section)
+ return FALSE;
+
+ section->filepos = 0;
+ section->size = bfd_getl32 (egps->alloc);
+ section->alignment_power = egps->align;
+
+ vms_section_data (section)->flags = old_flags;
+ vms_section_data (section)->no_flags = 0;
+
+ new_flags = vms_secflag_by_name (evax_section_flags, name,
+ section->size > 0);
+ if (!(old_flags & EGPS__V_NOMOD) && section->size > 0)
+ {
+ new_flags |= SEC_HAS_CONTENTS;
+ if (old_flags & EGPS__V_REL)
+ new_flags |= SEC_RELOC;
+ }
+ if (!bfd_set_section_flags (abfd, section, new_flags))
+ return FALSE;
+
/* Give a non-overlapping vma to non absolute sections. */
align_addr = (1 << section->alignment_power);
if ((base_addr % align_addr) != 0)
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))
PRIV (sections)[PRIV (section_count)] = section;
PRIV (section_count)++;
-
-#if VMS_DEBUG
- vms_debug (4, "EGSD P-section %d (%s, flags %04x) ",
- section->index, name, old_flags);
- vms_debug (4, "%lu bytes at 0x%08lx (mem %p)\n",
- (unsigned long)section->size,
- (unsigned long)section->vma, section->contents);
-#endif
}
break;
int nameoff;
struct vms_symbol_entry *entry;
struct vms_egsy *egsy = (struct vms_egsy *) vms_rec;
+ flagword old_flags;
old_flags = bfd_getl16 (egsy->flags);
if (old_flags & EGSY__V_DEF)
{
struct vms_symbol_entry *entry;
struct vms_egst *egst = (struct vms_egst *)vms_rec;
+ flagword old_flags;
old_flags = bfd_getl16 (egst->header.flags);
}
else if (rel1 & RELC_SHR_BASE)
{
- alpha_vms_add_lw_fixup (info, rel1 & RELC_MASK, op1);
+ alpha_vms_add_fixup_lr (info, rel1 & RELC_MASK, op1);
rel1 = RELC_NONE;
}
if (rel1 != RELC_NONE)
if (sec->flags & SEC_CODE)
eisd->u.eisd.flags |= EISD__M_EXE;
- if (!(sec->flags & SEC_READONLY))
+ else if (!(sec->flags & SEC_READONLY))
+ eisd->u.eisd.flags |= EISD__M_WRT | EISD__M_CRF;
+
+ /* If relocations or fixup will be applied, make this isect writeable. */
+ if (sec->flags & SEC_RELOC)
eisd->u.eisd.flags |= EISD__M_WRT | EISD__M_CRF;
if (!(sec->flags & SEC_LOAD))
sl->has_fixups = TRUE;
VEC_APPEND_EL (sl->lp, bfd_vma,
sect->output_section->vma + sect->output_offset + offset);
+ sect->output_section->flags |= SEC_RELOC;
}
+/* Add a code address fixup at address SECT + OFFSET to SHLIB. */
+
static void
alpha_vms_add_fixup_ca (struct bfd_link_info *info, bfd *src, bfd *shlib)
{
sl->has_fixups = TRUE;
VEC_APPEND_EL (sl->ca, bfd_vma,
sect->output_section->vma + sect->output_offset + offset);
+ sect->output_section->flags |= SEC_RELOC;
}
+/* Add a quad word relocation fixup at address SECT + OFFSET to SHLIB. */
+
static void
alpha_vms_add_fixup_qr (struct bfd_link_info *info, bfd *src,
bfd *shlib, bfd_vma vec)
r = VEC_APPEND (sl->qr, struct alpha_vms_vma_ref);
r->vma = sect->output_section->vma + sect->output_offset + offset;
r->ref = vec;
+ sect->output_section->flags |= SEC_RELOC;
}
static void
-alpha_vms_add_lw_fixup (struct bfd_link_info *info ATTRIBUTE_UNUSED,
+alpha_vms_add_fixup_lr (struct bfd_link_info *info ATTRIBUTE_UNUSED,
unsigned int shr ATTRIBUTE_UNUSED,
bfd_vma vec ATTRIBUTE_UNUSED)
{
+ /* Not yet supported. */
abort ();
}
-#if 0
-static void
-alpha_vms_add_qw_fixup (struct bfd_link_info *info ATTRIBUTE_UNUSED,
- unsigned int shr ATTRIBUTE_UNUSED,
- bfd_vma vec ATTRIBUTE_UNUSED)
-{
- abort ();
-}
-#endif
+/* Add relocation. FIXME: Not yet emitted. */
static void
alpha_vms_add_lw_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED)
unsigned int ca_sz = 0;
unsigned int qr_sz = 0;
unsigned int shrimg_cnt = 0;
+ unsigned int chgprt_num = 0;
+ unsigned int chgprt_sz = 0;
struct vms_eiaf *eiaf;
unsigned int off;
asection *sec;
if (ca_sz + lp_sz + qr_sz == 0)
return TRUE;
+ /* Add an eicp entry for the fixup itself. */
+ chgprt_num = 1;
+ for (sec = info->output_bfd->sections; sec != NULL; sec = sec->next)
+ {
+ /* This isect could be made RO or EXE after relocations are applied. */
+ if ((sec->flags & SEC_RELOC) != 0
+ && (sec->flags & (SEC_CODE | SEC_READONLY)) != 0)
+ chgprt_num++;
+ }
+ chgprt_sz = 4 + chgprt_num * sizeof (struct vms_eicp);
+
/* Allocate section content (round-up size) */
sz = sizeof (struct vms_eiaf) + shrimg_cnt * sizeof (struct vms_shl)
- + ca_sz + lp_sz + qr_sz;
+ + ca_sz + lp_sz + qr_sz + chgprt_sz;
sz = (sz + VMS_BLOCK_SIZE - 1) & ~(VMS_BLOCK_SIZE - 1);
content = bfd_zalloc (info->output_bfd, sz);
if (content == NULL)
bfd_putl32 (0, content + off + 4);
off += 8;
}
+ }
- /* CA fixups. */
+ /* Write the change protection table. */
+ bfd_putl32 (off, eiaf->chgprtoff);
+ bfd_putl32 (chgprt_num, content + off);
+ off += 4;
+
+ for (sec = info->output_bfd->sections; sec != NULL; sec = sec->next)
+ {
+ struct vms_eicp *eicp;
+ unsigned int prot;
+
+ if ((sec->flags & SEC_LINKER_CREATED) != 0 &&
+ strcmp (sec->name, "$FIXUP$") == 0)
+ prot = PRT__C_UREW;
+ else if ((sec->flags & SEC_RELOC) != 0
+ && (sec->flags & (SEC_CODE | SEC_READONLY)) != 0)
+ prot = PRT__C_UR;
+ else
+ continue;
+
+ eicp = (struct vms_eicp *)(content + off);
+ bfd_putl64 (sec->vma - t->base_addr, eicp->baseva);
+ bfd_putl32 ((sec->size + VMS_BLOCK_SIZE - 1) & ~(VMS_BLOCK_SIZE - 1),
+ eicp->size);
+ bfd_putl32 (prot, eicp->newprt);
+ off += sizeof (struct vms_eicp);
}
return TRUE;
asection *dst;
asection *dmt;
+ if (info->relocatable)
+ {
+ /* FIXME: we do not yet support relocatable link. It is not obvious
+ how to do it for debug infos. */
+ (*info->callbacks->einfo)(_("%P: relocatable link is not supported\n"));
+ return FALSE;
+ }
+
bfd_get_outsymbols (abfd) = NULL;
bfd_get_symcount (abfd) = 0;
PRIV (transfer_address[i++]) = 0;
}
- /* Allocate contents. */
+ /* Allocate contents.
+ Also compute the virtual base address. */
base_addr = (bfd_vma)-1;
last_addr = 0;
for (o = abfd->sections; o != NULL; o = o->next)
if (o->vma + o->size > last_addr)
last_addr = o->vma + o->size;
}
+ /* Clear the RELOC flags. Currently we don't support incremental
+ linking. We use the RELOC flag for computing the eicp entries. */
+ o->flags &= ~SEC_RELOC;
}
/* Create the fixup section. */
else if (bfd_get_section_flags (abfd, sec) & SEC_ALLOC)
ret->type = 'B';
else
- ret->type = '-';
+ ret->type = '?';
if (ret->type != 'U')
ret->value = symbol->value + symbol->section->vma;
projects / deliverable / binutils-gdb.git / blobdiff