/* MMIX-specific support for 64-bit ELF.
- Copyright (C) 2001-2015 Free Software Foundation, Inc.
+ Copyright (C) 2001-2020 Free Software Foundation, Inc.
Contributed by Hans-Peter Nilsson <hp@bitrange.com>
This file is part of BFD, the Binary File Descriptor library.
/* Only intended to be called from a debugger. */
extern void mmix_dump_bpo_gregs
- (struct bfd_link_info *, bfd_error_handler_type);
+ (struct bfd_link_info *, void (*) (const char *, ...));
static void
mmix_set_relaxable_size (bfd *, asection *, void *);
FALSE, /* partial_inplace */
~0x0100ffff, /* src_mask */
0x0100ffff, /* dst_mask */
- TRUE), /* pcrel_offset */
+ TRUE), /* pcrel_offset */
HOWTO (R_MMIX_CBRANCH_J, /* type */
2, /* rightshift */
if (!sec->used_by_bfd)
{
struct _mmix_elf_section_data *sdata;
- bfd_size_type amt = sizeof (*sdata);
+ size_t amt = sizeof (*sdata);
sdata = bfd_zalloc (abfd, amt);
if (sdata == NULL)
a verbose message. */
*error_message
= _("invalid input relocation when producing"
- " non-ELF, non-mmo format output."
- "\n Please use the objcopy program to convert from"
+ " non-ELF, non-mmo format output;"
+ " please use the objcopy program to convert from"
" ELF or mmo,"
- "\n or assemble using"
+ " or assemble using"
" \"-no-expand\" (for gcc, \"-Wa,-no-expand\"");
mmix_elf_section_data (isec)->has_warned_pushj = TRUE;
return bfd_reloc_dangerous;
a verbose message. */
*error_message
= _("invalid input relocation when producing"
- " non-ELF, non-mmo format output."
- "\n Please use the objcopy program to convert from"
+ " non-ELF, non-mmo format output;"
+ " please use the objcopy program to convert from"
" ELF or mmo,"
- "\n or compile using the gcc-option"
+ " or compile using the gcc-option"
" \"-mno-base-addresses\".");
mmix_elf_section_data (isec)->has_warned_bpo = TRUE;
return bfd_reloc_dangerous;
doesn't cost much, so can be left in at all times. */
if (value != gregdata->reloc_request[bpo_index].value)
{
- (*_bfd_error_handler)
- (_("%s: Internal inconsistency error for value for\n\
- linker-allocated global register: linked: 0x%lx%08lx != relaxed: 0x%lx%08lx\n"),
- bfd_get_filename (isec->owner),
- (unsigned long) (value >> 32), (unsigned long) value,
- (unsigned long) (gregdata->reloc_request[bpo_index].value
- >> 32),
- (unsigned long) gregdata->reloc_request[bpo_index].value);
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: Internal inconsistency error for value for\n\
+ linker-allocated global register: linked: %#" PRIx64 " != relaxed: %#" PRIx64 ""),
+ isec->owner,
+ (uint64_t) value,
+ (uint64_t) gregdata->reloc_request[bpo_index].value);
bfd_set_error (bfd_error_bad_value);
return bfd_reloc_overflow;
}
/* Set the howto pointer for an MMIX ELF reloc (type RELA). */
-static void
-mmix_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED,
+static bfd_boolean
+mmix_info_to_howto_rela (bfd *abfd,
arelent *cache_ptr,
Elf_Internal_Rela *dst)
{
r_type = ELF64_R_TYPE (dst->r_info);
if (r_type >= (unsigned int) R_MMIX_max)
{
- _bfd_error_handler (_("%A: invalid MMIX reloc number: %d"), abfd, r_type);
- r_type = 0;
+ /* xgettext:c-format */
+ _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
+ abfd, r_type);
+ bfd_set_error (bfd_error_bad_value);
+ return FALSE;
}
cache_ptr->howto = &elf_mmix_howto_table[r_type];
+ return TRUE;
}
/* Any MMIX-specific relocation gets here at assembly time or when linking
else
relocation = symbol->value;
- reloc_target_output_section = bfd_get_output_section (symbol);
+ reloc_target_output_section = bfd_asymbol_section (symbol)->output_section;
/* Here the variable relocation holds the final address of the symbol we
are relocating against, plus any addend. */
symtab_hdr->sh_link,
sym->st_name);
if (name == NULL)
- name = bfd_section_name (input_bfd, sec);
+ name = bfd_section_name (sec);
}
else
{
RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
rel, 1, relend, howto, 0, contents);
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
{
/* This is a relocatable link. For most relocs we don't have to
change anything, unless the reloc is against a section
if (r != bfd_reloc_ok)
{
- bfd_boolean check_ok = TRUE;
const char * msg = (const char *) NULL;
switch (r)
{
case bfd_reloc_overflow:
- check_ok = info->callbacks->reloc_overflow
+ info->callbacks->reloc_overflow
(info, (h ? &h->root : NULL), name, howto->name,
(bfd_vma) 0, input_bfd, input_section, rel->r_offset);
break;
case bfd_reloc_undefined:
/* We may have sent this message above. */
if (! undefined_signalled)
- check_ok = info->callbacks->undefined_symbol
- (info, name, input_bfd, input_section, rel->r_offset,
- TRUE);
+ info->callbacks->undefined_symbol
+ (info, name, input_bfd, input_section, rel->r_offset, TRUE);
undefined_signalled = TRUE;
break;
}
if (msg)
- check_ok = info->callbacks->warning
- (info, msg, name, input_bfd, input_section, rel->r_offset);
-
- if (! check_ok)
- return FALSE;
+ (*info->callbacks->warning) (info, msg, name, input_bfd,
+ input_section, rel->r_offset);
}
}
return bfd_reloc_undefined;
/* Check that we're not relocating against a register symbol. */
- if (strcmp (bfd_get_section_name (symsec->owner, symsec),
+ if (strcmp (bfd_section_name (symsec),
MMIX_REG_CONTENTS_SECTION_NAME) == 0
- || strcmp (bfd_get_section_name (symsec->owner, symsec),
+ || strcmp (bfd_section_name (symsec),
MMIX_REG_SECTION_NAME) == 0)
{
/* Note: This is separated out into two messages in order
to ease the translation into other languages. */
if (symname == NULL || *symname == 0)
- (*_bfd_error_handler)
- (_("%s: base-plus-offset relocation against register symbol: (unknown) in %s"),
- bfd_get_filename (input_section->owner),
- bfd_get_section_name (symsec->owner, symsec));
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: base-plus-offset relocation against register symbol:"
+ " (unknown) in %pA"),
+ input_section->owner, symsec);
else
- (*_bfd_error_handler)
- (_("%s: base-plus-offset relocation against register symbol: %s in %s"),
- bfd_get_filename (input_section->owner), symname,
- bfd_get_section_name (symsec->owner, symsec));
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: base-plus-offset relocation against register symbol:"
+ " %s in %pA"),
+ input_section->owner, symname, symsec);
return bfd_reloc_overflow;
}
goto do_mmix_reloc;
if (symsec == NULL)
return bfd_reloc_undefined;
- if (strcmp (bfd_get_section_name (symsec->owner, symsec),
+ if (strcmp (bfd_section_name (symsec),
MMIX_REG_CONTENTS_SECTION_NAME) == 0)
{
if ((srel & 7) != 0 || srel < 32*8 || srel > 255*8)
}
srel /= 8;
}
- else if (strcmp (bfd_get_section_name (symsec->owner, symsec),
+ else if (strcmp (bfd_section_name (symsec),
MMIX_REG_SECTION_NAME) == 0)
{
if (srel < 0 || srel > 255)
/* Note: This is separated out into two messages in order
to ease the translation into other languages. */
if (symname == NULL || *symname == 0)
- (*_bfd_error_handler)
- (_("%s: register relocation against non-register symbol: (unknown) in %s"),
- bfd_get_filename (input_section->owner),
- bfd_get_section_name (symsec->owner, symsec));
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: register relocation against non-register symbol:"
+ " (unknown) in %pA"),
+ input_section->owner, symsec);
else
- (*_bfd_error_handler)
- (_("%s: register relocation against non-register symbol: %s in %s"),
- bfd_get_filename (input_section->owner), symname,
- bfd_get_section_name (symsec->owner, symsec));
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: register relocation against non-register symbol:"
+ " %s in %pA"),
+ input_section->owner, symname, symsec);
/* The bfd_reloc_outofrange return value, though intuitively a
better value, will not get us an error. */
accidentally handling it. */
if (!bfd_is_abs_section (symsec)
&& !bfd_is_und_section (symsec)
- && strcmp (bfd_get_section_name (symsec->owner, symsec),
+ && strcmp (bfd_section_name (symsec),
MMIX_REG_CONTENTS_SECTION_NAME) != 0
- && strcmp (bfd_get_section_name (symsec->owner, symsec),
+ && strcmp (bfd_section_name (symsec),
MMIX_REG_SECTION_NAME) != 0)
{
- (*_bfd_error_handler)
- (_("%s: directive LOCAL valid only with a register or absolute value"),
- bfd_get_filename (input_section->owner));
+ _bfd_error_handler
+ (_("%pB: directive LOCAL valid only with a register or absolute value"),
+ input_section->owner);
return bfd_reloc_overflow;
}
first_global = 255;
else
{
- first_global
- = bfd_get_section_vma (input_section->output_section->owner,
- regsec) / 8;
- if (strcmp (bfd_get_section_name (symsec->owner, symsec),
+ first_global = bfd_section_vma (regsec) / 8;
+ if (strcmp (bfd_section_name (symsec),
MMIX_REG_CONTENTS_SECTION_NAME) == 0)
{
if ((srel & 7) != 0 || srel < 32*8 || srel > 255*8)
if ((bfd_vma) srel >= first_global)
{
/* FIXME: Better error message. */
- (*_bfd_error_handler)
- (_("%s: LOCAL directive: Register $%ld is not a local register. First global register is $%ld."),
- bfd_get_filename (input_section->owner), (long) srel, (long) first_global);
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: LOCAL directive: "
+ "register $%" PRId64 " is not a local register;"
+ " first global register is $%" PRId64),
+ input_section->owner, (int64_t) srel, (int64_t) first_global);
return bfd_reloc_overflow;
}
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
}
-
-/* Update relocation info for a GC-excluded section. We could supposedly
- perform the allocation after GC, but there's no suitable hook between
- GC (or section merge) and the point when all input sections must be
- present. Better to waste some memory and (perhaps) a little time. */
-
-static bfd_boolean
-mmix_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- asection *sec,
- const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
-{
- struct bpo_reloc_section_info *bpodata
- = mmix_elf_section_data (sec)->bpo.reloc;
- asection *allocated_gregs_section;
-
- /* If no bpodata here, we have nothing to do. */
- if (bpodata == NULL)
- return TRUE;
-
- allocated_gregs_section = bpodata->bpo_greg_section;
-
- mmix_elf_section_data (allocated_gregs_section)->bpo.greg->n_bpo_relocs
- -= bpodata->n_bpo_relocs_this_section;
-
- return TRUE;
-}
\f
/* Sort register relocs to come before expanding relocs. */
for (rel = relocs; rel < rel_end; rel++)
{
switch (ELF64_R_TYPE (rel->r_info))
- {
+ {
/* This relocation causes a GREG allocation. We need to count
them, and we need to create a section for them, so we need an
object to fake as the owner of that section. We can't use
DSO-related stuff if that member is non-NULL. */
case R_MMIX_BASE_PLUS_OFFSET:
/* We don't do anything with this reloc for a relocatable link. */
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
break;
if (bpo_greg_owner == NULL)
those flags, as that is what currently happens for usual
GREG allocations, and that works. */
if (allocated_gregs_section == NULL
- || !bfd_set_section_alignment (bpo_greg_owner,
- allocated_gregs_section,
- 3))
+ || !bfd_set_section_alignment (allocated_gregs_section, 3))
return FALSE;
gregdata = (struct bpo_greg_section_info *)
if (!mmix_elf_check_common_relocs (abfd, info, sec, relocs))
return FALSE;
- if (info->relocatable)
+ if (bfd_link_relocatable (info))
return TRUE;
rel_end = relocs + sec->reloc_count;
r_symndx = ELF64_R_SYM (rel->r_info);
if (r_symndx < symtab_hdr->sh_info)
- h = NULL;
+ h = NULL;
else
{
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
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;
-
- /* PR15323, ref flags aren't set for references in the same
- object. */
- h->root.non_ir_ref = 1;
}
switch (ELF64_R_TYPE (rel->r_info))
{
- /* This relocation describes the C++ object vtable hierarchy.
- Reconstruct it for later use during GC. */
- case R_MMIX_GNU_VTINHERIT:
- if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
- return FALSE;
- break;
-
- /* This relocation describes which C++ vtable entries are actually
- used. Record for later use during GC. */
- case R_MMIX_GNU_VTENTRY:
- BFD_ASSERT (h != NULL);
- if (h != NULL
- && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
- return FALSE;
- break;
+ /* This relocation describes the C++ object vtable hierarchy.
+ Reconstruct it for later use during GC. */
+ case R_MMIX_GNU_VTINHERIT:
+ if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
+ return FALSE;
+ break;
+
+ /* This relocation describes which C++ vtable entries are actually
+ used. Record for later use during GC. */
+ case R_MMIX_GNU_VTENTRY:
+ if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
+ return FALSE;
+ break;
}
}
/* Handle the special section numbers that a symbol may use. */
void
-mmix_elf_symbol_processing (abfd, asym)
- bfd *abfd ATTRIBUTE_UNUSED;
- asymbol *asym;
+mmix_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
{
elf_symbol_type *elfsym;
asection * sec,
int * retval)
{
- if (strcmp (bfd_get_section_name (abfd, sec), MMIX_REG_SECTION_NAME) == 0)
+ if (strcmp (bfd_section_name (sec), MMIX_REG_SECTION_NAME) == 0)
*retval = SHN_REGISTER;
else
return FALSE;
{
/* How do we get the asymbol (or really: the filename) from h?
h->u.def.section->owner is NULL. */
- ((*_bfd_error_handler)
- (_("%s: Error: multiple definition of `%s'; start of %s is set in a earlier linked file\n"),
- bfd_get_filename (abfd), *namep,
- *namep + strlen (MMIX_LOC_SECTION_START_SYMBOL_PREFIX)));
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("%pB: error: multiple definition of `%s'; start of %s "
+ "is set in a earlier linked file"),
+ abfd, *namep,
+ *namep + strlen (MMIX_LOC_SECTION_START_SYMBOL_PREFIX));
bfd_set_error (bfd_error_bad_value);
return FALSE;
}
if (reg_section != NULL)
{
/* FIXME: Pass error state gracefully. */
- if (bfd_get_section_flags (abfd, reg_section) & SEC_HAS_CONTENTS)
- _bfd_abort (__FILE__, __LINE__, _("Register section has contents\n"));
+ if (bfd_section_flags (reg_section) & SEC_HAS_CONTENTS)
+ _bfd_abort (__FILE__, __LINE__, _("register section has contents\n"));
/* Really remove the section, if it hasn't already been done. */
if (!bfd_section_removed_from_list (abfd, reg_section))
/* For use in relocatable link, we start with a max stubs size. See
mmix_elf_relax_section. */
- if (info->relocatable && sec->output_section)
+ if (bfd_link_relocatable (info) && sec->output_section)
mmix_elf_section_data (sec->output_section)->pjs.stubs_size_sum
+= (mmix_elf_section_data (sec)->pjs.n_pushj_relocs
* MAX_PUSHJ_STUB_SIZE);
/* Set the zeroth-order estimate for the GREGs size. */
gregs_size = n_gregs * 8;
- if (!bfd_set_section_size (bpo_greg_owner, bpo_gregs_section, gregs_size))
+ if (!bfd_set_section_size (bpo_gregs_section, gregs_size))
return FALSE;
/* Allocate and set up the GREG arrays. They're filled in at relaxation
if (gregdata->n_remaining_bpo_relocs_this_relaxation_round
!= gregdata->n_bpo_relocs)
{
- (*_bfd_error_handler)
- (_("Internal inconsistency: remaining %u != max %u.\n\
- Please report this bug."),
- gregdata->n_remaining_bpo_relocs_this_relaxation_round,
- gregdata->n_bpo_relocs);
+ _bfd_error_handler
+ /* xgettext:c-format */
+ (_("internal inconsistency: remaining %lu != max %lu;"
+ " please report this bug"),
+ (unsigned long) gregdata->n_remaining_bpo_relocs_this_relaxation_round,
+ (unsigned long) gregdata->n_bpo_relocs);
return FALSE;
}
from base-plus-offset relocs. */
void
-mmix_dump_bpo_gregs (link_info, pf)
- struct bfd_link_info *link_info;
- bfd_error_handler_type pf;
+mmix_dump_bpo_gregs (struct bfd_link_info *link_info,
+ void (*pf) (const char *fmt, ...))
{
bfd *bpo_greg_owner;
asection *bpo_gregs_section;
|| (sec->flags & SEC_CODE) == 0
|| (sec->flags & SEC_LINKER_CREATED) != 0
/* If no R_MMIX_BASE_PLUS_OFFSET relocs and no PUSHJ-stub relocs,
- then nothing to do. */
+ then nothing to do. */
|| (bpodata == NULL
&& mmix_elf_section_data (sec)->pjs.n_pushj_relocs == 0))
return TRUE;
/* We process relocs in a distinctly different way when this is a
relocatable link (for one, we don't look at symbols), so we avoid
mixing its code with that for the "normal" relaxation. */
- if (link_info->relocatable)
+ if (bfd_link_relocatable (link_info))
{
/* The only transformation in a relocatable link is to generate
a full stub at the location of the stub calculated for the
indx = ELF64_R_SYM (irel->r_info) - symtab_hdr->sh_info;
h = elf_sym_hashes (abfd)[indx];
BFD_ASSERT (h != NULL);
- if (h->root.type != bfd_link_hash_defined
- && h->root.type != bfd_link_hash_defweak)
+ if (h->root.type == bfd_link_hash_undefweak)
+ /* FIXME: for R_MMIX_PUSHJ_STUBBABLE, there are alternatives to
+ the canonical value 0 for an unresolved weak symbol to
+ consider: as the debug-friendly approach, resolve to "abort"
+ (or a port-specific function), or as the space-friendly
+ approach resolve to the next instruction (like some other
+ ports, notably ARM and AArch64). These alternatives require
+ matching code in mmix_elf_perform_relocation or its caller. */
+ symval = 0;
+ else if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ symval = (h->root.u.def.value
+ + h->root.u.def.section->output_section->vma
+ + h->root.u.def.section->output_offset);
+ else
{
/* This appears to be a reference to an undefined symbol. Just
ignore it--it will be caught by the regular reloc processing.
}
continue;
}
-
- symval = (h->root.u.def.value
- + h->root.u.def.section->output_section->vma
- + h->root.u.def.section->output_offset);
}
if (ELF64_R_TYPE (irel->r_info) == (int) R_MMIX_PUSHJ_STUBBABLE)
}
}
- if (internal_relocs != NULL
- && elf_section_data (sec)->relocs != internal_relocs)
+ BFD_ASSERT(pjsno == mmix_elf_section_data (sec)->pjs.n_pushj_relocs);
+
+ if (elf_section_data (sec)->relocs != internal_relocs)
free (internal_relocs);
if (sec->size < size + mmix_elf_section_data (sec)->pjs.stubs_size_sum)
return TRUE;
error_return:
- if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
+ if ((unsigned char *) isymbuf != symtab_hdr->contents)
free (isymbuf);
- if (internal_relocs != NULL
- && elf_section_data (sec)->relocs != internal_relocs)
+ if (elf_section_data (sec)->relocs != internal_relocs)
free (internal_relocs);
return FALSE;
}
\f
#define ELF_ARCH bfd_arch_mmix
-#define ELF_MACHINE_CODE EM_MMIX
+#define ELF_MACHINE_CODE EM_MMIX
/* According to mmix-doc page 36 (paragraph 45), this should be (1LL << 48LL).
However, that's too much for something somewhere in the linker part of
#define elf_info_to_howto mmix_info_to_howto_rela
#define elf_backend_relocate_section mmix_elf_relocate_section
#define elf_backend_gc_mark_hook mmix_elf_gc_mark_hook
-#define elf_backend_gc_sweep_hook mmix_elf_gc_sweep_hook
#define elf_backend_link_output_symbol_hook \
mmix_elf_link_output_symbol_hook
#define elf_backend_check_relocs mmix_elf_check_relocs
#define elf_backend_symbol_processing mmix_elf_symbol_processing
-#define elf_backend_omit_section_dynsym \
- ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
+#define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all
+
+#define bfd_elf64_bfd_copy_link_hash_symbol_type \
+ _bfd_generic_copy_link_hash_symbol_type
#define bfd_elf64_bfd_is_local_label_name \
mmix_elf_is_local_label_name
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