Copyright 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
Free Software Foundation, Inc.
-This file is part of BFD, the Binary File Descriptor library.
+ This file is part of BFD, the Binary File Descriptor library.
-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 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.
+ 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. */
+ 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. */
#include "bfd.h"
#include "sysdep.h"
PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *));
static bfd_boolean elf_m68k_size_dynamic_sections
PARAMS ((bfd *, struct bfd_link_info *));
+static bfd_boolean elf_m68k_discard_copies
+ PARAMS ((struct elf_link_hash_entry *, PTR));
static bfd_boolean elf_m68k_relocate_section
PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
HOWTO(R_68K_GLOB_DAT, 0, 2,32, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_GLOB_DAT", FALSE, 0, 0xffffffff,FALSE),
HOWTO(R_68K_JMP_SLOT, 0, 2,32, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_JMP_SLOT", FALSE, 0, 0xffffffff,FALSE),
HOWTO(R_68K_RELATIVE, 0, 2,32, FALSE,0, complain_overflow_dont, bfd_elf_generic_reloc, "R_68K_RELATIVE", FALSE, 0, 0xffffffff,FALSE),
- /* GNU extension to record C++ vtable hierarchy */
+ /* GNU extension to record C++ vtable hierarchy. */
HOWTO (R_68K_GNU_VTINHERIT, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
0, /* src_mask */
0, /* dst_mask */
FALSE),
- /* GNU extension to record C++ vtable member usage */
+ /* GNU extension to record C++ vtable member usage. */
HOWTO (R_68K_GNU_VTENTRY, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
#define bfd_elf32_bfd_reloc_type_lookup reloc_type_lookup
#define ELF_ARCH bfd_arch_m68k
-/* end code generated by elf.el */
\f
/* Functions for the m68k ELF linker. */
struct elf_m68k_pcrel_relocs_copied *pcrel_relocs_copied;
};
+#define elf_m68k_hash_entry(ent) ((struct elf_m68k_link_hash_entry *) (ent))
+
/* m68k ELF linker hash table. */
struct elf_m68k_link_hash_table
struct sym_sec_cache sym_sec;
};
-/* Declare this now that the above structures are defined. */
-
-static bfd_boolean elf_m68k_discard_copies
- PARAMS ((struct elf_m68k_link_hash_entry *, PTR));
-
-/* Traverse an m68k ELF linker hash table. */
-
-#define elf_m68k_link_hash_traverse(table, func, info) \
- (elf_link_hash_traverse \
- (&(table)->root, \
- (bfd_boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
- (info)))
-
/* Get the m68k ELF linker hash table from a link_info structure. */
#define elf_m68k_hash_table(p) \
struct bfd_hash_table *table;
const char *string;
{
- struct elf_m68k_link_hash_entry *ret =
- (struct elf_m68k_link_hash_entry *) entry;
+ struct bfd_hash_entry *ret = entry;
/* Allocate the structure if it has not already been allocated by a
subclass. */
- if (ret == (struct elf_m68k_link_hash_entry *) NULL)
- ret = ((struct elf_m68k_link_hash_entry *)
- bfd_hash_allocate (table,
- sizeof (struct elf_m68k_link_hash_entry)));
- if (ret == (struct elf_m68k_link_hash_entry *) NULL)
- return (struct bfd_hash_entry *) ret;
+ if (ret == NULL)
+ ret = bfd_hash_allocate (table,
+ sizeof (struct elf_m68k_link_hash_entry));
+ if (ret == NULL)
+ return ret;
/* Call the allocation method of the superclass. */
- ret = ((struct elf_m68k_link_hash_entry *)
- _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
- table, string));
- if (ret != (struct elf_m68k_link_hash_entry *) NULL)
- {
- ret->pcrel_relocs_copied = NULL;
- }
+ ret = _bfd_elf_link_hash_newfunc (ret, table, string);
+ if (ret != NULL)
+ elf_m68k_hash_entry (ret)->pcrel_relocs_copied = NULL;
- return (struct bfd_hash_entry *) ret;
+ return ret;
}
/* Create an m68k ELF linker hash table. */
return &ret->root.root;
}
-/* Keep m68k-specific flags in the ELF header */
+/* Keep m68k-specific flags in the ELF header. */
static bfd_boolean
elf32_m68k_set_private_flags (abfd, flags)
bfd *abfd;
return TRUE;
}
-/* Display the flags field */
+/* Display the flags field. */
static bfd_boolean
elf32_m68k_print_private_bfd_data (abfd, ptr)
bfd *abfd;
asection *srelgot;
asection *sreloc;
- if (info->relocateable)
+ if (info->relocatable)
return TRUE;
dynobj = elf_hash_table (info)->dynobj;
|| !bfd_set_section_alignment (dynobj, sreloc, 2))
return FALSE;
}
+ elf_section_data (sec)->sreloc = sreloc;
}
if (sec->flags & SEC_READONLY
if (h != NULL)
{
struct elf_m68k_link_hash_entry *eh
- = (struct elf_m68k_link_hash_entry *) h;
+ = elf_m68k_hash_entry (h);
head = &eh->pcrel_relocs_copied;
}
else
/* We also need to make an entry in the .got.plt section, which
will be placed in the .got section by the linker script. */
-
s = bfd_get_section_by_name (dynobj, ".got.plt");
BFD_ASSERT (s != NULL);
s->_raw_size += 4;
/* We also need to make an entry in the .rela.plt section. */
-
s = bfd_get_section_by_name (dynobj, ".rela.plt");
BFD_ASSERT (s != NULL);
s->_raw_size += sizeof (Elf32_External_Rela);
return TRUE;
}
+/* This is the condition under which elf_m68k_finish_dynamic_symbol
+ will be called from elflink.h. If elflink.h doesn't call our
+ finish_dynamic_symbol routine, we'll need to do something about
+ initializing any .plt and .got entries in elf_m68k_relocate_section. */
+#define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, SHARED, H) \
+ ((DYN) \
+ && ((SHARED) \
+ || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \
+ && ((H)->dynindx != -1 \
+ || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0))
+
/* Set the sizes of the dynamic sections. */
static bfd_boolean
We allocated space for them in the check_relocs routine, but we
will not fill them in in the relocate_section routine. */
if (info->shared)
- elf_m68k_link_hash_traverse (elf_m68k_hash_table (info),
- elf_m68k_discard_copies,
- (PTR) info);
+ elf_link_hash_traverse (elf_hash_table (info),
+ elf_m68k_discard_copies,
+ (PTR) info);
/* The check_relocs and adjust_dynamic_symbol entry points have
determined the sizes of the various dynamic sections. Allocate
return TRUE;
}
-/* This function is called via elf_m68k_link_hash_traverse if we are
+/* This function is called via elf_link_hash_traverse if we are
creating a shared object. In the -Bsymbolic case it discards the
space allocated to copy PC relative relocs against symbols which
are defined in regular objects. For the normal shared case, it
static bfd_boolean
elf_m68k_discard_copies (h, inf)
- struct elf_m68k_link_hash_entry *h;
+ struct elf_link_hash_entry *h;
PTR inf;
{
struct bfd_link_info *info = (struct bfd_link_info *) inf;
struct elf_m68k_pcrel_relocs_copied *s;
- if (h->root.root.type == bfd_link_hash_warning)
- h = (struct elf_m68k_link_hash_entry *) h->root.root.u.i.link;
+ if (h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
- if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
+ if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0
|| (!info->symbolic
- && (h->root.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0))
+ && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0))
{
if ((info->flags & DF_TEXTREL) == 0)
{
/* Look for relocations against read-only sections. */
- for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
+ for (s = elf_m68k_hash_entry (h)->pcrel_relocs_copied;
+ s != NULL;
+ s = s->next)
if ((s->section->flags & SEC_READONLY) != 0)
{
info->flags |= DF_TEXTREL;
break;
}
}
+
return TRUE;
}
- for (s = h->pcrel_relocs_copied; s != NULL; s = s->next)
+ for (s = elf_m68k_hash_entry (h)->pcrel_relocs_copied;
+ s != NULL;
+ s = s->next)
s->section->_raw_size -= s->count * sizeof (Elf32_External_Rela);
return TRUE;
Elf_Internal_Rela *rel;
Elf_Internal_Rela *relend;
- if (info->relocateable)
+ if (info->relocatable)
return TRUE;
dynobj = elf_hash_table (info)->dynobj;
Elf_Internal_Sym *sym;
asection *sec;
bfd_vma relocation;
+ bfd_boolean unresolved_reloc;
bfd_reloc_status_type r;
r_type = ELF32_R_TYPE (rel->r_info);
h = NULL;
sym = NULL;
sec = NULL;
+ unresolved_reloc = FALSE;
if (r_symndx < symtab_hdr->sh_info)
{
sym = local_syms + r_symndx;
while (h->root.type == bfd_link_hash_indirect
|| h->root.type == bfd_link_hash_warning)
h = (struct elf_link_hash_entry *) h->root.u.i.link;
+
+ relocation = 0;
if (h->root.type == bfd_link_hash_defined
|| h->root.type == bfd_link_hash_defweak)
{
sec = h->root.u.def.section;
- if (((r_type == R_68K_PLT8
- || r_type == R_68K_PLT16
- || r_type == R_68K_PLT32
- || r_type == R_68K_PLT8O
- || r_type == R_68K_PLT16O
- || r_type == R_68K_PLT32O)
- && h->plt.offset != (bfd_vma) -1
- && elf_hash_table (info)->dynamic_sections_created)
- || ((r_type == R_68K_GOT8O
- || r_type == R_68K_GOT16O
- || r_type == R_68K_GOT32O
- || ((r_type == R_68K_GOT8
- || r_type == R_68K_GOT16
- || r_type == R_68K_GOT32)
- && strcmp (h->root.root.string,
- "_GLOBAL_OFFSET_TABLE_") != 0))
- && elf_hash_table (info)->dynamic_sections_created
- && (! info->shared
- || (! info->symbolic && h->dynindx != -1)
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0))
- || (info->shared
- && ((! info->symbolic && h->dynindx != -1)
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0)
- && ((input_section->flags & SEC_ALLOC) != 0
- /* DWARF will emit R_68K_32 relocations in its
- sections against symbols defined externally
- in shared libraries. We can't do anything
- with them here. */
- || ((input_section->flags & SEC_DEBUGGING) != 0
- && (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
- && (r_type == R_68K_8
- || r_type == R_68K_16
- || r_type == R_68K_32
- || r_type == R_68K_PC8
- || r_type == R_68K_PC16
- || r_type == R_68K_PC32)))
- {
- /* In these cases, we don't need the relocation
- value. We check specially because in some
- obscure cases sec->output_section will be NULL. */
- relocation = 0;
- }
+ if (sec->output_section == NULL)
+ /* Set a flag that will be cleared later if we find a
+ relocation value for this symbol. output_section
+ is typically NULL for symbols satisfied by a shared
+ library. */
+ unresolved_reloc = TRUE;
else
relocation = (h->root.u.def.value
+ sec->output_section->vma
+ sec->output_offset);
}
else if (h->root.type == bfd_link_hash_undefweak)
- relocation = 0;
+ ;
else if (info->shared
- && (!info->symbolic || info->allow_shlib_undefined)
&& !info->no_undefined
&& ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
- relocation = 0;
+ ;
else
{
if (!(info->callbacks->undefined_symbol
(!info->shared || info->no_undefined
|| ELF_ST_VISIBILITY (h->other)))))
return FALSE;
- relocation = 0;
}
}
if (h != NULL)
{
+ bfd_boolean dyn;
+
off = h->got.offset;
BFD_ASSERT (off != (bfd_vma) -1);
- if (!elf_hash_table (info)->dynamic_sections_created
+ dyn = elf_hash_table (info)->dynamic_sections_created;
+ if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
|| (info->shared
- && (info->symbolic || h->dynindx == -1)
- && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)))
+ && (info->symbolic
+ || h->dynindx == -1
+ || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) != 0)
{
/* This is actually a static link, or it is a
-Bsymbolic link and the symbol is defined
h->got.offset |= 1;
}
}
+ else
+ unresolved_reloc = FALSE;
}
else
{
relocation = (splt->output_section->vma
+ splt->output_offset
+ h->plt.offset);
+ unresolved_reloc = FALSE;
break;
case R_68K_PLT8O:
}
relocation = h->plt.offset;
+ unresolved_reloc = FALSE;
/* This relocation does not use the addend. */
rel->r_addend = 0;
if (info->shared
&& r_symndx != 0
&& (input_section->flags & SEC_ALLOC) != 0
+ && (h == NULL
+ || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
+ || h->root.type != bfd_link_hash_undefweak)
&& ((r_type != R_68K_PC8
&& r_type != R_68K_PC16
&& r_type != R_68K_PC32)
- || (!info->symbolic
- || (h->elf_link_hash_flags
- & ELF_LINK_HASH_DEF_REGULAR) == 0)))
+ || (h != NULL
+ && h->dynindx != -1
+ && (!info->symbolic
+ || (h->elf_link_hash_flags
+ & ELF_LINK_HASH_DEF_REGULAR) == 0))))
{
Elf_Internal_Rela outrel;
bfd_byte *loc;
are copied into the output file to be resolved at run
time. */
- if (sreloc == NULL)
- {
- const char *name;
-
- name = (bfd_elf_string_from_elf_section
- (input_bfd,
- elf_elfheader (input_bfd)->e_shstrndx,
- elf_section_data (input_section)->rel_hdr.sh_name));
- if (name == NULL)
- return FALSE;
-
- BFD_ASSERT (strncmp (name, ".rela", 5) == 0
- && strcmp (bfd_get_section_name (input_bfd,
- input_section),
- name + 5) == 0);
-
- sreloc = bfd_get_section_by_name (dynobj, name);
- BFD_ASSERT (sreloc != NULL);
- }
-
skip = FALSE;
relocate = FALSE;
if (skip)
memset (&outrel, 0, sizeof outrel);
- /* h->dynindx may be -1 if the symbol was marked to
- become local. */
else if (h != NULL
- && ((! info->symbolic && h->dynindx != -1)
+ && h->dynindx != -1
+ && (r_type == R_68K_PC8
+ || r_type == R_68K_PC16
+ || r_type == R_68K_PC32
+ || !info->shared
+ || !info->symbolic
|| (h->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR) == 0))
{
- BFD_ASSERT (h->dynindx != -1);
outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
- outrel.r_addend = relocation + rel->r_addend;
+ outrel.r_addend = rel->r_addend;
}
else
{
+ /* This symbol is local, or marked to become local. */
if (r_type == R_68K_32)
{
relocate = TRUE;
}
}
+ sreloc = elf_section_data (input_section)->sreloc;
+ if (sreloc == NULL)
+ abort ();
+
loc = sreloc->contents;
loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
break;
}
+ /* Dynamic relocs are not propagated for SEC_DEBUGGING sections
+ because such sections are not SEC_ALLOC and thus ld.so will
+ not process them. */
+ if (unresolved_reloc
+ && !((input_section->flags & SEC_DEBUGGING) != 0
+ && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0))
+ {
+ (*_bfd_error_handler)
+ (_("%s(%s+0x%lx): unresolvable relocation against symbol `%s'"),
+ bfd_archive_filename (input_bfd),
+ bfd_get_section_name (input_bfd, input_section),
+ (long) rel->r_offset,
+ h->root.root.string);
+ return FALSE;
+ }
+
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
contents, rel->r_offset,
relocation, rel->r_addend);
if (r != bfd_reloc_ok)
{
- switch (r)
+ const char *name;
+
+ if (h != NULL)
+ name = h->root.root.string;
+ else
{
- default:
- case bfd_reloc_outofrange:
- abort ();
- case bfd_reloc_overflow:
- {
- const char *name;
+ name = bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ sym->st_name);
+ if (name == NULL)
+ return FALSE;
+ if (*name == '\0')
+ name = bfd_section_name (input_bfd, sec);
+ }
- if (h != NULL)
- name = h->root.root.string;
- else
- {
- name = bfd_elf_string_from_elf_section (input_bfd,
- symtab_hdr->sh_link,
- sym->st_name);
- if (name == NULL)
- return FALSE;
- if (*name == '\0')
- name = bfd_section_name (input_bfd, sec);
- }
- if (!(info->callbacks->reloc_overflow
- (info, name, howto->name, (bfd_vma) 0,
- input_bfd, input_section, rel->r_offset)))
- return FALSE;
- }
- break;
+ if (r == bfd_reloc_overflow)
+ {
+ if (!(info->callbacks->reloc_overflow
+ (info, name, howto->name, (bfd_vma) 0,
+ input_bfd, input_section, rel->r_offset)))
+ return FALSE;
+ }
+ else
+ {
+ (*_bfd_error_handler)
+ (_("%s(%s+0x%lx): reloc against `%s': error %d"),
+ bfd_archive_filename (input_bfd),
+ bfd_get_section_name (input_bfd, input_section),
+ (long) rel->r_offset, name, (int) r);
+ return FALSE;
}
}
}
The entry in the global offset table will already have been
initialized in the relocate_section function. */
if (info->shared
- && (info->symbolic || h->dynindx == -1)
+ && (info->symbolic
+ || h->dynindx == -1
+ || (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)
&& (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))
{
rela.r_info = ELF32_R_INFO (0, R_68K_RELATIVE);
bfd_byte *p;
bfd_size_type amt;
- BFD_ASSERT (! info->relocateable);
+ BFD_ASSERT (! info->relocatable);
*errmsg = NULL;
symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
/* Get a copy of the native relocations. */
- internal_relocs = (_bfd_elf32_link_read_relocs
+ internal_relocs = (_bfd_elf_link_read_relocs
(abfd, datasec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
info->keep_memory));
if (internal_relocs == NULL)
projects / binutils-gdb.git / blobdiff