/* Alpha specific support for 64-bit ELF
- Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
- 2006, 2007, 2008, 2009, 2010, 2011, 2012
- Free Software Foundation, Inc.
+ Copyright (C) 1996-2017 Free Software Foundation, Inc.
Contributed by Richard Henderson <rth@tamu.edu>.
This file is part of BFD, the Binary File Descriptor library.
{
HOWTO (R_ALPHA_NONE, /* type */
0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
+ 3, /* size (0 = byte, 1 = short, 2 = long) */
+ 0, /* bitsize */
TRUE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
Elf_Internal_Rela *dst)
{
unsigned r_type = ELF64_R_TYPE(dst->r_info);
- BFD_ASSERT (r_type < (unsigned int) R_ALPHA_max);
+
+ if (r_type >= R_ALPHA_max)
+ {
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%B: unrecognised Alpha reloc number: %d"),
+ abfd, r_type);
+ bfd_set_error (bfd_error_bad_value);
+ r_type = R_ALPHA_NONE;
+ }
cache_ptr->howto = &elf64_alpha_howto_table[r_type];
}
asection **secp, bfd_vma *valp)
{
if (sym->st_shndx == SHN_COMMON
- && !info->relocatable
+ && !bfd_link_relocatable (info)
&& sym->st_size <= elf_gp_size (abfd))
{
/* Common symbols less than or equal to -G nn bytes are
| SEC_LINKER_CREATED
| (elf64_alpha_use_secureplt ? SEC_READONLY : 0));
s = bfd_make_section_anyway_with_flags (abfd, ".plt", flags);
+ elf_hash_table (info)->splt = s;
if (s == NULL || ! bfd_set_section_alignment (abfd, s, 4))
return FALSE;
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
| SEC_LINKER_CREATED | SEC_READONLY);
s = bfd_make_section_anyway_with_flags (abfd, ".rela.plt", flags);
+ elf_hash_table (info)->srelplt = s;
if (s == NULL || ! bfd_set_section_alignment (abfd, s, 3))
return FALSE;
{
flags = SEC_ALLOC | SEC_LINKER_CREATED;
s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags);
+ elf_hash_table (info)->sgotplt = s;
if (s == NULL || ! bfd_set_section_alignment (abfd, s, 3))
return FALSE;
}
flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
| SEC_LINKER_CREATED | SEC_READONLY);
s = bfd_make_section_anyway_with_flags (abfd, ".rela.got", flags);
+ elf_hash_table (info)->srelgot = s;
if (s == NULL
|| !bfd_set_section_alignment (abfd, s, 3))
return FALSE;
}
static bfd_boolean
-elf64_alpha_find_nearest_line (bfd *abfd, asection *section, asymbol **symbols,
- bfd_vma offset, const char **filename_ptr,
+elf64_alpha_find_nearest_line (bfd *abfd, asymbol **symbols,
+ asection *section, bfd_vma offset,
+ const char **filename_ptr,
const char **functionname_ptr,
- unsigned int *line_ptr)
+ unsigned int *line_ptr,
+ unsigned int *discriminator_ptr)
{
asection *msec;
- if (_bfd_dwarf2_find_nearest_line (abfd, dwarf_debug_sections,
- section, symbols, offset,
+ if (_bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
filename_ptr, functionname_ptr,
- line_ptr, NULL, 0,
+ line_ptr, discriminator_ptr,
+ dwarf_debug_sections, 0,
&elf_tdata (abfd)->dwarf2_find_line_info))
return TRUE;
/* Fall back on the generic ELF find_nearest_line routine. */
- return _bfd_elf_find_nearest_line (abfd, section, symbols, offset,
+ return _bfd_elf_find_nearest_line (abfd, symbols, section, offset,
filename_ptr, functionname_ptr,
- line_ptr);
+ line_ptr, discriminator_ptr);
}
\f
/* Structure used to pass information to alpha_elf_output_extsym. */
&& (ah->flags & ~ALPHA_ELF_LINK_HASH_LU_PLT) == 0);
}
+/* Whether to sort relocs output by ld -r or ld --emit-relocs, by r_offset.
+ Don't do so for code sections. We want to keep ordering of LITERAL/LITUSE
+ as is. On the other hand, elf-eh-frame.c processing requires .eh_frame
+ relocs to be sorted. */
+
+static bfd_boolean
+elf64_alpha_sort_relocs_p (asection *sec)
+{
+ return (sec->flags & SEC_CODE) == 0;
+}
+
+
/* Handle dynamic relocations when doing an Alpha ELF link. */
static bfd_boolean
const Elf_Internal_Rela *rel, *relend;
bfd_size_type amt;
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
return TRUE;
/* Don't do anything special with non-loaded, non-alloced sections.
/* PR15323, ref flags aren't set for references in the same
object. */
- h->root.root.non_ir_ref = 1;
+ h->root.root.non_ir_ref_regular = 1;
h->root.ref_regular = 1;
}
have yet been processed. Do something with what we know, as
this may help reduce memory usage and processing time later. */
maybe_dynamic = FALSE;
- if (h && ((info->shared
+ if (h && ((bfd_link_pic (info)
&& (!info->symbolic
|| info->unresolved_syms_in_shared_libs == RM_IGNORE))
|| !h->root.def_regular
case R_ALPHA_REFLONG:
case R_ALPHA_REFQUAD:
- if (info->shared || maybe_dynamic)
+ if (bfd_link_pic (info) || maybe_dynamic)
need = NEED_DYNREL;
break;
case R_ALPHA_GOTTPREL:
need = NEED_GOT | NEED_GOT_ENTRY;
gotent_flags = ALPHA_ELF_LINK_HASH_TLS_IE;
- if (info->shared)
+ if (bfd_link_pic (info))
info->flags |= DF_STATIC_TLS;
break;
case R_ALPHA_TPREL64:
- if (info->shared && !info->pie)
+ if (bfd_link_dll (info))
{
info->flags |= DF_STATIC_TLS;
need = NEED_DYNREL;
else
rent->count++;
}
- else if (info->shared)
+ else if (bfd_link_pic (info))
{
/* If this is a shared library, and the section is to be
loaded into memory, we need a RELATIVE reloc. */
struct alpha_elf_link_hash_entry **sym_hashes;
const Elf_Internal_Rela *rel, *relend;
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
return TRUE;
symtab_hdr = &elf_symtab_hdr (abfd);
{
h->needs_plt = TRUE;
- s = bfd_get_linker_section (dynobj, ".plt");
+ s = elf_hash_table(info)->splt;
if (!s && !elf64_alpha_create_dynamic_sections (dynobj, info))
return FALSE;
&& gi->reloc_type == gs->reloc_type
&& gi->addend == gs->addend)
{
- gi->use_count += gs->use_count;
+ gs->use_count += gi->use_count;
goto got_found;
}
gi->next = hs->got_entries;
/* Constructs the gots. */
static bfd_boolean
-elf64_alpha_size_got_sections (struct bfd_link_info *info)
+elf64_alpha_size_got_sections (struct bfd_link_info *info,
+ bfd_boolean may_merge)
{
bfd *i, *got_list, *cur_got_obj = NULL;
struct alpha_elf_link_hash_table * htab;
consisting of all of the input files. */
if (got_list == NULL)
{
- for (i = info->input_bfds; i ; i = i->link_next)
+ for (i = info->input_bfds; i ; i = i->link.next)
{
bfd *this_got;
if (alpha_elf_tdata (this_got)->total_got_size > MAX_GOT_SIZE)
{
/* Yikes! A single object file has too many entries. */
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B: .got subsegment exceeds 64K (size %d)"),
i, alpha_elf_tdata (this_got)->total_got_size);
return FALSE;
if (cur_got_obj == NULL)
return FALSE;
- i = alpha_elf_tdata(cur_got_obj)->got_link_next;
- while (i != NULL)
+ if (may_merge)
{
- if (elf64_alpha_can_merge_gots (cur_got_obj, i))
+ i = alpha_elf_tdata(cur_got_obj)->got_link_next;
+ while (i != NULL)
{
- elf64_alpha_merge_gots (cur_got_obj, i);
+ if (elf64_alpha_can_merge_gots (cur_got_obj, i))
+ {
+ elf64_alpha_merge_gots (cur_got_obj, i);
- alpha_elf_tdata(i)->got->size = 0;
- i = alpha_elf_tdata(i)->got_link_next;
- alpha_elf_tdata(cur_got_obj)->got_link_next = i;
- }
- else
- {
- cur_got_obj = i;
- i = alpha_elf_tdata(i)->got_link_next;
+ alpha_elf_tdata(i)->got->size = 0;
+ i = alpha_elf_tdata(i)->got_link_next;
+ alpha_elf_tdata(cur_got_obj)->got_link_next = i;
+ }
+ else
+ {
+ cur_got_obj = i;
+ i = alpha_elf_tdata(i)->got_link_next;
+ }
}
}
{
asection *splt, *spltrel, *sgotplt;
unsigned long entries;
- bfd *dynobj;
struct alpha_elf_link_hash_table * htab;
htab = alpha_elf_hash_table (info);
if (htab == NULL)
return;
- dynobj = elf_hash_table(info)->dynobj;
- splt = bfd_get_linker_section (dynobj, ".plt");
+ splt = elf_hash_table(info)->splt;
if (splt == NULL)
return;
elf64_alpha_size_plt_section_1, splt);
/* Every plt entry requires a JMP_SLOT relocation. */
- spltrel = bfd_get_linker_section (dynobj, ".rela.plt");
+ spltrel = elf_hash_table(info)->srelplt;
entries = 0;
if (splt->size)
{
entire contents of the .got.plt section. */
if (elf64_alpha_use_secureplt)
{
- sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
+ sgotplt = elf_hash_table(info)->sgotplt;
sgotplt->size = entries ? 16 : 0;
}
}
bfd *i;
struct alpha_elf_link_hash_table * htab;
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
return TRUE;
htab = alpha_elf_hash_table (info);
if (htab == NULL)
return FALSE;
- if (!elf64_alpha_size_got_sections (info))
+ if (!elf64_alpha_size_got_sections (info, TRUE))
return FALSE;
/* Allocate space for all of the .got subsections. */
/* If the symbol is a hidden undefined weak, then we never have any
relocations. Avoid the loop which may want to add RELATIVE relocs
- based on info->shared. */
+ based on bfd_link_pic (info). */
if (h->root.root.type == bfd_link_hash_undefweak && !dynamic)
return TRUE;
for (relent = h->reloc_entries; relent; relent = relent->next)
{
entries = alpha_dynamic_entries_for_reloc (relent->rtype, dynamic,
- info->shared, info->pie);
+ bfd_link_pic (info),
+ bfd_link_pie (info));
if (entries)
{
relent->srel->size +=
/* If the symbol is a hidden undefined weak, then we never have any
relocations. Avoid the loop which may want to add RELATIVE relocs
- based on info->shared. */
+ based on bfd_link_pic (info). */
if (h->root.root.type == bfd_link_hash_undefweak && !dynamic)
return TRUE;
for (gotent = h->got_entries; gotent ; gotent = gotent->next)
if (gotent->use_count > 0)
entries += alpha_dynamic_entries_for_reloc (gotent->reloc_type, dynamic,
- info->shared, info->pie);
+ bfd_link_pic (info),
+ bfd_link_pie (info));
if (entries > 0)
{
- bfd *dynobj = elf_hash_table(info)->dynobj;
- asection *srel = bfd_get_linker_section (dynobj, ".rela.got");
+ asection *srel = elf_hash_table(info)->srelgot;
BFD_ASSERT (srel != NULL);
srel->size += sizeof (Elf64_External_Rela) * entries;
}
elf64_alpha_size_rela_got_section (struct bfd_link_info *info)
{
unsigned long entries;
- bfd *i, *dynobj;
+ bfd *i;
asection *srel;
struct alpha_elf_link_hash_table * htab;
gotent ; gotent = gotent->next)
if (gotent->use_count > 0)
entries += (alpha_dynamic_entries_for_reloc
- (gotent->reloc_type, 0, info->shared, info->pie));
+ (gotent->reloc_type, 0, bfd_link_pic (info),
+ bfd_link_pie (info)));
}
}
- dynobj = elf_hash_table(info)->dynobj;
- srel = bfd_get_linker_section (dynobj, ".rela.got");
+ srel = elf_hash_table(info)->srelgot;
if (!srel)
{
BFD_ASSERT (entries == 0);
{
bfd *dynobj;
asection *s;
- bfd_boolean relplt;
+ bfd_boolean relplt, relocs;
struct alpha_elf_link_hash_table * htab;
htab = alpha_elf_hash_table (info);
if (elf_hash_table (info)->dynamic_sections_created)
{
/* Set the contents of the .interp section to the interpreter. */
- if (info->executable)
+ if (bfd_link_executable (info) && !info->nointerp)
{
s = bfd_get_linker_section (dynobj, ".interp");
BFD_ASSERT (s != NULL);
determined the sizes of the various dynamic sections. Allocate
memory for them. */
relplt = FALSE;
+ relocs = FALSE;
for (s = dynobj->sections; s != NULL; s = s->next)
{
const char *name;
{
if (strcmp (name, ".rela.plt") == 0)
relplt = TRUE;
+ else
+ relocs = TRUE;
/* We use the reloc_count field as a counter if we need
to copy relocs into the output file. */
#define add_dynamic_entry(TAG, VAL) \
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
- if (info->executable)
+ if (bfd_link_executable (info))
{
if (!add_dynamic_entry (DT_DEBUG, 0))
return FALSE;
return FALSE;
}
- if (!add_dynamic_entry (DT_RELA, 0)
- || !add_dynamic_entry (DT_RELASZ, 0)
- || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
- return FALSE;
-
- if (info->flags & DF_TEXTREL)
+ if (relocs)
{
- if (!add_dynamic_entry (DT_TEXTREL, 0))
+ if (!add_dynamic_entry (DT_RELA, 0)
+ || !add_dynamic_entry (DT_RELASZ, 0)
+ || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela)))
return FALSE;
+
+ if (info->flags & DF_TEXTREL)
+ {
+ if (!add_dynamic_entry (DT_TEXTREL, 0))
+ return FALSE;
+ }
}
}
#undef add_dynamic_entry
if (insn >> 26 != OP_LDQ)
{
reloc_howto_type *howto = elf64_alpha_howto_table + r_type;
- ((*_bfd_error_handler)
- ("%B: %A+0x%lx: warning: %s relocation against unexpected insn",
- info->abfd, info->sec,
- (unsigned long) irel->r_offset, howto->name));
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%B: %A+%#Lx: warning: %s relocation against unexpected insn"),
+ info->abfd, info->sec, irel->r_offset, howto->name);
return TRUE;
}
/* Can't use local-exec relocations in shared libraries. */
if (r_type == R_ALPHA_GOTTPREL
- && (info->link_info->shared && !info->link_info->pie))
+ && bfd_link_dll (info->link_info))
return TRUE;
if (r_type == R_ALPHA_LITERAL)
/* Look for nice constant addresses. This includes the not-uncommon
special case of 0 for undefweak symbols. */
if ((info->h && info->h->root.root.type == bfd_link_hash_undefweak)
- || (!info->link_info->shared
+ || (!bfd_link_pic (info->link_info)
&& (symval >= (bfd_vma)-0x8000 || symval < 0x8000)))
{
disp = 0;
}
else
{
+ /* We may only create GPREL relocs during the second pass. */
+ if (info->link_info->relax_pass == 0)
+ return TRUE;
+
disp = symval - info->gp;
insn = (OP_LDA << 26) | (insn & 0x03ff0000);
r_type = R_ALPHA_GPREL16;
if (tsec_relocs == NULL)
return 0;
tsec_relend = tsec_relocs + info->tsec->reloc_count;
- tsec_free = (info->link_info->keep_memory ? NULL : tsec_relocs);
+ tsec_free = (elf_section_data (info->tsec)->relocs == tsec_relocs
+ ? NULL
+ : tsec_relocs);
}
/* Recover the symbol's offset within the section. */
elf64_alpha_relax_with_lituse (struct alpha_relax_info *info,
bfd_vma symval, Elf_Internal_Rela *irel)
{
- Elf_Internal_Rela *urel, *irelend = info->relend;
- int flags, count, i;
+ Elf_Internal_Rela *urel, *erel, *irelend = info->relend;
+ int flags;
bfd_signed_vma disp;
bfd_boolean fits16;
bfd_boolean fits32;
bfd_boolean lit_reused = FALSE;
bfd_boolean all_optimized = TRUE;
+ bfd_boolean changed_contents;
+ bfd_boolean changed_relocs;
+ bfd_byte *contents = info->contents;
+ bfd *abfd = info->abfd;
+ bfd_vma sec_output_vma;
unsigned int lit_insn;
+ int relax_pass;
- lit_insn = bfd_get_32 (info->abfd, info->contents + irel->r_offset);
+ lit_insn = bfd_get_32 (abfd, contents + irel->r_offset);
if (lit_insn >> 26 != OP_LDQ)
{
- ((*_bfd_error_handler)
- ("%B: %A+0x%lx: warning: LITERAL relocation against unexpected insn",
- info->abfd, info->sec,
- (unsigned long) irel->r_offset));
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%B: %A+%#Lx: warning: LITERAL relocation against unexpected insn"),
+ abfd, info->sec, irel->r_offset);
return TRUE;
}
if (alpha_elf_dynamic_symbol_p (&info->h->root, info->link_info))
return TRUE;
+ changed_contents = info->changed_contents;
+ changed_relocs = info->changed_relocs;
+ sec_output_vma = info->sec->output_section->vma + info->sec->output_offset;
+ relax_pass = info->link_info->relax_pass;
+
/* Summarize how this particular LITERAL is used. */
- for (urel = irel+1, flags = count = 0; urel < irelend; ++urel, ++count)
+ for (erel = irel+1, flags = 0; erel < irelend; ++erel)
{
- if (ELF64_R_TYPE (urel->r_info) != R_ALPHA_LITUSE)
+ if (ELF64_R_TYPE (erel->r_info) != R_ALPHA_LITUSE)
break;
- if (urel->r_addend <= 6)
- flags |= 1 << urel->r_addend;
+ if (erel->r_addend <= 6)
+ flags |= 1 << erel->r_addend;
}
/* A little preparation for the loop... */
disp = symval - info->gp;
- for (urel = irel+1, i = 0; i < count; ++i, ++urel)
+ for (urel = irel+1; urel < erel; ++urel)
{
+ bfd_vma urel_r_offset = urel->r_offset;
unsigned int insn;
int insn_disp;
bfd_signed_vma xdisp;
+ Elf_Internal_Rela nrel;
- insn = bfd_get_32 (info->abfd, info->contents + urel->r_offset);
+ insn = bfd_get_32 (abfd, contents + urel_r_offset);
switch (urel->r_addend)
{
break;
case LITUSE_ALPHA_BASE:
+ /* We may only create GPREL relocs during the second pass. */
+ if (relax_pass == 0)
+ {
+ all_optimized = FALSE;
+ break;
+ }
+
/* We can always optimize 16-bit displacements. */
/* Extract the displacement from the instruction, sign-extending
/* Take the op code and dest from this insn, take the base
register from the literal insn. Leave the offset alone. */
insn = (insn & 0xffe0ffff) | (lit_insn & 0x001f0000);
- urel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
- R_ALPHA_GPREL16);
- urel->r_addend = irel->r_addend;
- info->changed_relocs = TRUE;
-
- bfd_put_32 (info->abfd, (bfd_vma) insn,
- info->contents + urel->r_offset);
- info->changed_contents = TRUE;
+ bfd_put_32 (abfd, (bfd_vma) insn, contents + urel_r_offset);
+ changed_contents = TRUE;
+
+ nrel = *urel;
+ nrel.r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
+ R_ALPHA_GPREL16);
+ nrel.r_addend = irel->r_addend;
+
+ /* As we adjust, move the reloc to the end so that we don't
+ break the LITERAL+LITUSE chain. */
+ if (urel < --erel)
+ *urel-- = *erel;
+ *erel = nrel;
+ changed_relocs = TRUE;
}
/* If all mem+byte, we can optimize 32-bit mem displacements. */
irel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
R_ALPHA_GPRELHIGH);
lit_insn = (OP_LDAH << 26) | (lit_insn & 0x03ff0000);
- bfd_put_32 (info->abfd, (bfd_vma) lit_insn,
- info->contents + irel->r_offset);
+ bfd_put_32 (abfd, (bfd_vma) lit_insn, contents + irel->r_offset);
lit_reused = TRUE;
- info->changed_contents = TRUE;
+ changed_contents = TRUE;
+ /* Since all relocs must be optimized, don't bother swapping
+ this relocation to the end. */
urel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
R_ALPHA_GPRELLOW);
urel->r_addend = irel->r_addend;
- info->changed_relocs = TRUE;
+ changed_relocs = TRUE;
}
else
all_optimized = FALSE;
insn &= ~ (unsigned) 0x001ff000;
insn |= ((symval & 7) << 13) | 0x1000;
-
- urel->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
- urel->r_addend = 0;
- info->changed_relocs = TRUE;
-
- bfd_put_32 (info->abfd, (bfd_vma) insn,
- info->contents + urel->r_offset);
- info->changed_contents = TRUE;
+ bfd_put_32 (abfd, (bfd_vma) insn, contents + urel_r_offset);
+ changed_contents = TRUE;
+
+ nrel = *urel;
+ nrel.r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
+ nrel.r_addend = 0;
+
+ /* As we adjust, move the reloc to the end so that we don't
+ break the LITERAL+LITUSE chain. */
+ if (urel < --erel)
+ *urel-- = *erel;
+ *erel = nrel;
+ changed_relocs = TRUE;
break;
case LITUSE_ALPHA_JSR:
if (info->h && info->h->root.root.type == bfd_link_hash_undefweak)
{
insn |= 31 << 16;
- bfd_put_32 (info->abfd, (bfd_vma) insn,
- info->contents + urel->r_offset);
+ bfd_put_32 (abfd, (bfd_vma) insn, contents + urel_r_offset);
- info->changed_contents = TRUE;
+ changed_contents = TRUE;
break;
}
/* If not zero, place to jump without needing pv. */
optdest = elf64_alpha_relax_opt_call (info, symval);
- org = (info->sec->output_section->vma
- + info->sec->output_offset
- + urel->r_offset + 4);
+ org = sec_output_vma + urel_r_offset + 4;
odisp = (optdest ? optdest : symval) - org;
if (odisp >= -0x400000 && odisp < 0x400000)
insn = (OP_BSR << 26) | (insn & 0x03e00000);
else
insn = (OP_BR << 26) | (insn & 0x03e00000);
+ bfd_put_32 (abfd, (bfd_vma) insn, contents + urel_r_offset);
+ changed_contents = TRUE;
- urel->r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
- R_ALPHA_BRADDR);
- urel->r_addend = irel->r_addend;
+ nrel = *urel;
+ nrel.r_info = ELF64_R_INFO (ELF64_R_SYM (irel->r_info),
+ R_ALPHA_BRADDR);
+ nrel.r_addend = irel->r_addend;
if (optdest)
- urel->r_addend += optdest - symval;
+ nrel.r_addend += optdest - symval;
else
all_optimized = FALSE;
- bfd_put_32 (info->abfd, (bfd_vma) insn,
- info->contents + urel->r_offset);
-
/* Kill any HINT reloc that might exist for this insn. */
xrel = (elf64_alpha_find_reloc_at_ofs
- (info->relocs, info->relend, urel->r_offset,
+ (info->relocs, info->relend, urel_r_offset,
R_ALPHA_HINT));
if (xrel)
xrel->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
- info->changed_contents = TRUE;
+ /* As we adjust, move the reloc to the end so that we don't
+ break the LITERAL+LITUSE chain. */
+ if (urel < --erel)
+ *urel-- = *erel;
+ *erel = nrel;
+
info->changed_relocs = TRUE;
}
else
{
Elf_Internal_Rela *gpdisp
= (elf64_alpha_find_reloc_at_ofs
- (info->relocs, irelend, urel->r_offset + 4,
+ (info->relocs, irelend, urel_r_offset + 4,
R_ALPHA_GPDISP));
if (gpdisp)
{
- bfd_byte *p_ldah = info->contents + gpdisp->r_offset;
+ bfd_byte *p_ldah = contents + gpdisp->r_offset;
bfd_byte *p_lda = p_ldah + gpdisp->r_addend;
- unsigned int ldah = bfd_get_32 (info->abfd, p_ldah);
- unsigned int lda = bfd_get_32 (info->abfd, p_lda);
+ unsigned int ldah = bfd_get_32 (abfd, p_ldah);
+ unsigned int lda = bfd_get_32 (abfd, p_lda);
/* Verify that the instruction is "ldah $29,0($26)".
Consider a function that ends in a noreturn call,
In that case the insn would use $27 as the base. */
if (ldah == 0x27ba0000 && lda == 0x23bd0000)
{
- bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, p_ldah);
- bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP, p_lda);
+ bfd_put_32 (abfd, (bfd_vma) INSN_UNOP, p_ldah);
+ bfd_put_32 (abfd, (bfd_vma) INSN_UNOP, p_lda);
gpdisp->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
- info->changed_contents = TRUE;
- info->changed_relocs = TRUE;
+ changed_contents = TRUE;
+ changed_relocs = TRUE;
}
}
}
}
}
+ /* If we reused the literal instruction, we must have optimized all. */
+ BFD_ASSERT(!lit_reused || all_optimized);
+
/* If all cases were optimized, we can reduce the use count on this
got entry by one, possibly eliminating it. */
if (all_optimized)
if (!lit_reused)
{
irel->r_info = ELF64_R_INFO (0, R_ALPHA_NONE);
- info->changed_relocs = TRUE;
+ changed_relocs = TRUE;
- bfd_put_32 (info->abfd, (bfd_vma) INSN_UNOP,
- info->contents + irel->r_offset);
- info->changed_contents = TRUE;
+ bfd_put_32 (abfd, (bfd_vma) INSN_UNOP, contents + irel->r_offset);
+ changed_contents = TRUE;
}
-
- return TRUE;
}
- else
- return elf64_alpha_relax_got_load (info, symval, irel, R_ALPHA_LITERAL);
+
+ info->changed_contents = changed_contents;
+ info->changed_relocs = changed_relocs;
+
+ if (all_optimized || relax_pass == 0)
+ return TRUE;
+ return elf64_alpha_relax_got_load (info, symval, irel, R_ALPHA_LITERAL);
}
static bfd_boolean
/* If the symbol is local, and we've already committed to DF_STATIC_TLS,
then we might as well relax to IE. */
- else if (info->link_info->shared && !dynamic
+ else if (bfd_link_pic (info->link_info) && !dynamic
&& (info->link_info->flags & DF_STATIC_TLS))
;
/* Otherwise we must be building an executable to do anything. */
- else if (info->link_info->shared)
+ else if (bfd_link_pic (info->link_info))
return TRUE;
/* The TLSGD/TLSLDM relocation must be followed by a LITERAL and
use_gottprel = FALSE;
new_symndx = is_gd ? ELF64_R_SYM (irel->r_info) : STN_UNDEF;
- switch (!dynamic && !info->link_info->shared)
+ /* Some compilers warn about a Boolean-looking expression being
+ used in a switch. The explicit cast silences them. */
+ switch ((int) (!dynamic && !bfd_link_pic (info->link_info)))
{
case 1:
{
struct alpha_elf_got_entry **local_got_entries;
struct alpha_relax_info info;
struct alpha_elf_link_hash_table * htab;
+ int relax_pass;
htab = alpha_elf_hash_table (link_info);
if (htab == NULL)
/* There's nothing to change, yet. */
*again = FALSE;
- if (link_info->relocatable
+ if (bfd_link_relocatable (link_info)
|| ((sec->flags & (SEC_CODE | SEC_RELOC | SEC_ALLOC))
!= (SEC_CODE | SEC_RELOC | SEC_ALLOC))
|| sec->reloc_count == 0)
return TRUE;
BFD_ASSERT (is_alpha_elf (abfd));
+ relax_pass = link_info->relax_pass;
/* Make sure our GOT and PLT tables are up-to-date. */
if (htab->relax_trip != link_info->relax_trip)
{
htab->relax_trip = link_info->relax_trip;
- /* This should never fail after the initial round, since the only
- error is GOT overflow, and relaxation only shrinks the table. */
- if (!elf64_alpha_size_got_sections (link_info))
+ /* This should never fail after the initial round, since the only error
+ is GOT overflow, and relaxation only shrinks the table. However, we
+ may only merge got sections during the first pass. If we merge
+ sections after we've created GPREL relocs, the GP for the merged
+ section backs up which may put the relocs out of range. */
+ if (!elf64_alpha_size_got_sections (link_info, relax_pass == 0))
abort ();
if (elf_hash_table (link_info)->dynamic_sections_created)
{
unsigned long r_symndx = ELF64_R_SYM (irel->r_info);
/* Early exit for unhandled or unrelaxable relocations. */
- switch (r_type)
- {
- case R_ALPHA_LITERAL:
- case R_ALPHA_GPRELHIGH:
- case R_ALPHA_GPRELLOW:
- case R_ALPHA_GOTDTPREL:
- case R_ALPHA_GOTTPREL:
- case R_ALPHA_TLSGD:
- break;
-
- case R_ALPHA_TLSLDM:
- /* The symbol for a TLSLDM reloc is ignored. Collapse the
- reloc to the STN_UNDEF (0) symbol so that they all match. */
- r_symndx = STN_UNDEF;
- break;
-
- default:
- continue;
+ if (r_type != R_ALPHA_LITERAL)
+ {
+ /* We complete everything except LITERAL in the first pass. */
+ if (relax_pass != 0)
+ continue;
+ if (r_type == R_ALPHA_TLSLDM)
+ {
+ /* The symbol for a TLSLDM reloc is ignored. Collapse the
+ reloc to the STN_UNDEF (0) symbol so that they all match. */
+ r_symndx = STN_UNDEF;
+ }
+ else if (r_type != R_ALPHA_GOTDTPREL
+ && r_type != R_ALPHA_GOTTPREL
+ && r_type != R_ALPHA_TLSGD)
+ continue;
}
/* Get the value of the symbol referred to by the reloc. */
r_type = ELF64_R_TYPE (rel->r_info);
if (r_type >= R_ALPHA_max)
{
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B: unknown relocation type %d"),
input_bfd, (int) r_type);
bfd_set_error (bfd_error_bad_value);
BFD_ASSERT (is_alpha_elf (input_bfd));
/* Handle relocatable links with a smaller loop. */
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
return elf64_alpha_relocate_section_r (output_bfd, info, input_bfd,
input_section, contents, relocs,
local_syms, local_sections);
symtab_hdr = &elf_symtab_hdr (input_bfd);
dynobj = elf_hash_table (info)->dynobj;
- if (dynobj)
- srelgot = bfd_get_linker_section (dynobj, ".rela.got");
- else
- srelgot = NULL;
+ srelgot = elf_hash_table (info)->srelgot;
if (input_section->flags & SEC_ALLOC)
{
r_type = ELF64_R_TYPE(rel->r_info);
if (r_type >= R_ALPHA_max)
{
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B: unknown relocation type %d"),
input_bfd, (int) r_type);
bfd_set_error (bfd_error_bad_value);
}
else
{
- bfd_boolean warned;
+ bfd_boolean warned, ignored;
struct elf_link_hash_entry *hh;
struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
r_symndx, symtab_hdr, sym_hashes,
hh, sec, value,
- unresolved_reloc, warned);
+ unresolved_reloc, warned, ignored);
if (warned)
continue;
/* If the symbol has been forced local, output a
RELATIVE reloc, otherwise it will be handled in
finish_dynamic_symbol. */
- if (info->shared && !dynamic_symbol_p && !undef_weak_ref)
+ if (bfd_link_pic (info)
+ && !dynamic_symbol_p
+ && !undef_weak_ref)
elf64_alpha_emit_dynrel (output_bfd, info, sgot, srelgot,
gotent->got_offset, 0,
R_ALPHA_RELATIVE, value);
case R_ALPHA_GPRELLOW:
if (dynamic_symbol_p)
{
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B: gp-relative relocation against dynamic symbol %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
case R_ALPHA_GPRELHIGH:
if (dynamic_symbol_p)
{
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B: gp-relative relocation against dynamic symbol %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
case R_ALPHA_BRADDR:
if (dynamic_symbol_p)
{
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B: pc-relative relocation against dynamic symbol %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
&& alpha_elf_tdata (sec->owner)->gotobj
&& gotobj != alpha_elf_tdata (sec->owner)->gotobj)
{
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B: change in gp: BRSGP %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
else if (name[0] == 0)
name = bfd_section_name (input_bfd, sec);
}
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B: !samegp reloc against symbol without .prologue: %s"),
input_bfd, name);
ret_val = FALSE;
else if (r_type == R_ALPHA_TPREL64)
{
BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
- if (!info->shared || info->pie)
+ if (!bfd_link_dll (info))
{
value -= tp_base;
goto default_reloc;
dynindx = 0;
dynaddend = value - dtp_base;
}
- else if (info->shared
+ else if (bfd_link_pic (info)
&& r_symndx != STN_UNDEF
&& (input_section->flags & SEC_ALLOC)
&& !undef_weak_ref
{
if (r_type == R_ALPHA_REFLONG)
{
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B: unhandled dynamic relocation against %s"),
input_bfd,
h->root.root.root.string);
case R_ALPHA_SREL64:
if (dynamic_symbol_p)
{
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B: pc-relative relocation against dynamic symbol %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
}
- else if ((info->shared || info->pie) && undef_weak_ref)
+ else if (bfd_link_pic (info)
+ && undef_weak_ref)
{
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B: pc-relative relocation against undefined weak symbol %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
gotent->reloc_done = 1;
/* Note that the module index for the main program is 1. */
- bfd_put_64 (output_bfd, !info->shared && !dynamic_symbol_p,
+ bfd_put_64 (output_bfd,
+ !bfd_link_pic (info) && !dynamic_symbol_p,
sgot->contents + gotent->got_offset);
/* If the symbol has been forced local, output a
DTPMOD64 reloc, otherwise it will be handled in
finish_dynamic_symbol. */
- if (info->shared && !dynamic_symbol_p)
+ if (bfd_link_pic (info) && !dynamic_symbol_p)
elf64_alpha_emit_dynrel (output_bfd, info, sgot, srelgot,
gotent->got_offset, 0,
R_ALPHA_DTPMOD64, 0);
case R_ALPHA_DTPREL16:
if (dynamic_symbol_p)
{
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B: dtp-relative relocation against dynamic symbol %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
case R_ALPHA_TPRELHI:
case R_ALPHA_TPRELLO:
case R_ALPHA_TPREL16:
- if (info->shared && !info->pie)
+ if (bfd_link_dll (info))
{
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B: TLS local exec code cannot be linked into shared objects"),
input_bfd);
ret_val = FALSE;
}
else if (dynamic_symbol_p)
{
- (*_bfd_error_handler)
+ _bfd_error_handler
+ /* xgettext:c-format */
(_("%B: tp-relative relocation against dynamic symbol %s"),
input_bfd, h->root.root.root.string);
ret_val = FALSE;
BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
if (r_type == R_ALPHA_GOTDTPREL)
value -= dtp_base;
- else if (!info->shared)
+ else if (!bfd_link_pic (info))
value -= tp_base;
else
{
if (*name == '\0')
name = bfd_section_name (input_bfd, sec);
}
- if (! ((*info->callbacks->reloc_overflow)
- (info, (h ? &h->root.root : NULL), name, howto->name,
- (bfd_vma) 0, input_bfd, input_section,
- rel->r_offset)))
- ret_val = FALSE;
+ (*info->callbacks->reloc_overflow)
+ (info, (h ? &h->root.root : NULL), name, howto->name,
+ (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
}
break;
Elf_Internal_Sym *sym)
{
struct alpha_elf_link_hash_entry *ah = (struct alpha_elf_link_hash_entry *)h;
- bfd *dynobj = elf_hash_table(info)->dynobj;
if (h->needs_plt)
{
BFD_ASSERT (h->dynindx != -1);
- splt = bfd_get_linker_section (dynobj, ".plt");
+ splt = elf_hash_table (info)->splt;
BFD_ASSERT (splt != NULL);
- srel = bfd_get_linker_section (dynobj, ".rela.plt");
+ srel = elf_hash_table (info)->srelplt;
BFD_ASSERT (srel != NULL);
for (gotent = ah->got_entries; gotent ; gotent = gotent->next)
asection *srel;
struct alpha_elf_got_entry *gotent;
- srel = bfd_get_linker_section (dynobj, ".rela.got");
+ srel = elf_hash_table (info)->srelgot;
BFD_ASSERT (srel != NULL);
for (gotent = ((struct alpha_elf_link_hash_entry *) h)->got_entries;
Elf64_External_Dyn *dyncon, *dynconend;
bfd_vma plt_vma, gotplt_vma;
- splt = bfd_get_linker_section (dynobj, ".plt");
- srelaplt = bfd_get_linker_section (output_bfd, ".rela.plt");
+ splt = elf_hash_table (info)->splt;
+ srelaplt = elf_hash_table (info)->srelplt;
BFD_ASSERT (splt != NULL && sdyn != NULL);
plt_vma = splt->output_section->vma + splt->output_offset;
gotplt_vma = 0;
if (elf64_alpha_use_secureplt)
{
- sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
+ sgotplt = elf_hash_table (info)->sgotplt;
BFD_ASSERT (sgotplt != NULL);
if (sgotplt->size > 0)
gotplt_vma = sgotplt->output_section->vma + sgotplt->output_offset;
dyn.d_un.d_val = srelaplt ? srelaplt->size : 0;
break;
case DT_JMPREL:
- dyn.d_un.d_ptr = srelaplt ? srelaplt->vma : 0;
- break;
-
- case DT_RELASZ:
- /* My interpretation of the TIS v1.1 ELF document indicates
- that RELASZ should not include JMPREL. This is not what
- the rest of the BFD does. It is, however, what the
- glibc ld.so wants. Do this fixup here until we found
- out who is right. */
- if (srelaplt)
- dyn.d_un.d_val -= srelaplt->size;
+ dyn.d_un.d_ptr = srelaplt ? (srelaplt->output_section->vma
+ + srelaplt->output_offset) : 0;
break;
}
bfd_elf64_swap_reloca_out
};
-#define TARGET_LITTLE_SYM bfd_elf64_alpha_vec
+#define TARGET_LITTLE_SYM alpha_elf64_vec
#define TARGET_LITTLE_NAME "elf64-alpha"
#define ELF_ARCH bfd_arch_alpha
#define ELF_TARGET_ID ALPHA_ELF_DATA
elf64_alpha_add_symbol_hook
#define elf_backend_relocs_compatible \
_bfd_elf_relocs_compatible
+#define elf_backend_sort_relocs_p \
+ elf64_alpha_sort_relocs_p
#define elf_backend_check_relocs \
elf64_alpha_check_relocs
#define elf_backend_create_dynamic_sections \
#define elf_backend_plt_readonly 0
#define elf_backend_want_plt_sym 1
#define elf_backend_got_header_size 0
+#define elf_backend_dtrel_excludes_plt 1
#include "elf64-target.h"
\f
/* FreeBSD support. */
#undef TARGET_LITTLE_SYM
-#define TARGET_LITTLE_SYM bfd_elf64_alpha_freebsd_vec
+#define TARGET_LITTLE_SYM alpha_elf64_fbsd_vec
#undef TARGET_LITTLE_NAME
#define TARGET_LITTLE_NAME "elf64-alpha-freebsd"
#undef ELF_OSABI
projects / deliverable / binutils-gdb.git / blobdiff