/* ELF executable support for BFD.
- Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
- 2003 Free Software Foundation, Inc.
+
+ Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
+ 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
#include "libiberty.h"
static int elf_sort_sections (const void *, const void *);
-static bfd_boolean assign_file_positions_except_relocs (bfd *);
+static bfd_boolean assign_file_positions_except_relocs (bfd *, struct bfd_link_info *);
static bfd_boolean prep_headers (bfd *);
static bfd_boolean swap_out_syms (bfd *, struct bfd_strtab_hash **, int) ;
static bfd_boolean elfcore_read_notes (bfd *, file_ptr, bfd_size_type) ;
bfd_boolean
_bfd_elf_merge_sections (bfd *abfd, struct bfd_link_info *info)
{
- if (!is_elf_hash_table (info))
+ if (!is_elf_hash_table (info->hash))
return FALSE;
if (elf_hash_table (info)->merge_info)
_bfd_merge_sections (abfd, elf_hash_table (info)->merge_info,
{
sec->output_section = bfd_abs_section_ptr;
sec->output_offset = sec->vma;
- if (!is_elf_hash_table (info))
+ if (!is_elf_hash_table (info->hash))
return;
sec->sec_info_type = ELF_INFO_TYPE_JUST_SYMS;
/* Copy down any references that we may have already seen to the
symbol which just became indirect. */
- dir->elf_link_hash_flags |=
- (ind->elf_link_hash_flags
- & (ELF_LINK_HASH_REF_DYNAMIC
- | ELF_LINK_HASH_REF_REGULAR
- | ELF_LINK_HASH_REF_REGULAR_NONWEAK
- | ELF_LINK_NON_GOT_REF));
+ dir->elf_link_hash_flags
+ |= ind->elf_link_hash_flags & (ELF_LINK_HASH_REF_DYNAMIC
+ | ELF_LINK_HASH_REF_REGULAR
+ | ELF_LINK_HASH_REF_REGULAR_NONWEAK
+ | ELF_LINK_NON_GOT_REF
+ | ELF_LINK_HASH_NEEDS_PLT
+ | ELF_LINK_POINTER_EQUALITY_NEEDED);
if (ind->root.type != bfd_link_hash_indirect)
return;
memset (&table->eh_info, 0, sizeof (table->eh_info));
table->dynlocal = NULL;
table->runpath = NULL;
- table->tls_segment = NULL;
+ table->tls_sec = NULL;
+ table->tls_size = 0;
table->loaded = NULL;
ret = _bfd_link_hash_table_init (&table->root, abfd, newfunc);
/* This is a hook for the ELF emulation code in the generic linker to
tell the backend linker what file name to use for the DT_NEEDED
- entry for a dynamic object. The generic linker passes name as an
- empty string to indicate that no DT_NEEDED entry should be made. */
+ entry for a dynamic object. */
void
bfd_elf_set_dt_needed_name (bfd *abfd, const char *name)
}
void
-bfd_elf_set_dt_needed_soname (bfd *abfd, const char *name)
+bfd_elf_set_dyn_lib_class (bfd *abfd, int lib_class)
{
if (bfd_get_flavour (abfd) == bfd_target_elf_flavour
&& bfd_get_format (abfd) == bfd_object)
- elf_dt_soname (abfd) = name;
+ elf_dyn_lib_class (abfd) = lib_class;
}
/* Get the list of DT_NEEDED entries for a link. This is a hook for
bfd_elf_get_needed_list (bfd *abfd ATTRIBUTE_UNUSED,
struct bfd_link_info *info)
{
- if (! is_elf_hash_table (info))
+ if (! is_elf_hash_table (info->hash))
return NULL;
return elf_hash_table (info)->needed;
}
bfd_elf_get_runpath_list (bfd *abfd ATTRIBUTE_UNUSED,
struct bfd_link_info *info)
{
- if (! is_elf_hash_table (info))
+ if (! is_elf_hash_table (info->hash))
return NULL;
return elf_hash_table (info)->runpath;
}
/* sh_offset is set in assign_file_positions_except_relocs. */
shstrtab_hdr->sh_addralign = 1;
- if (!assign_file_positions_except_relocs (abfd))
+ if (!assign_file_positions_except_relocs (abfd, link_info))
return FALSE;
if (link_info == NULL && bfd_get_symcount (abfd) > 0)
{
if ((hdr->flags & SEC_READONLY) == 0)
writable = TRUE;
- last_hdr = hdr;
+ /* Ignore .tbss section for segment layout purposes. */
+ if ((hdr->flags & (SEC_THREAD_LOCAL | SEC_LOAD)) != SEC_THREAD_LOCAL)
+ last_hdr = hdr;
continue;
}
return sec1->target_index - sec2->target_index;
}
+/* Ian Lance Taylor writes:
+
+ We shouldn't be using % with a negative signed number. That's just
+ not good. We have to make sure either that the number is not
+ negative, or that the number has an unsigned type. When the types
+ are all the same size they wind up as unsigned. When file_ptr is a
+ larger signed type, the arithmetic winds up as signed long long,
+ which is wrong.
+
+ What we're trying to say here is something like ``increase OFF by
+ the least amount that will cause it to be equal to the VMA modulo
+ the page size.'' */
+/* In other words, something like:
+
+ vma_offset = m->sections[0]->vma % bed->maxpagesize;
+ off_offset = off % bed->maxpagesize;
+ if (vma_offset < off_offset)
+ adjustment = vma_offset + bed->maxpagesize - off_offset;
+ else
+ adjustment = vma_offset - off_offset;
+
+ which can can be collapsed into the expression below. */
+
+static file_ptr
+vma_page_aligned_bias (bfd_vma vma, ufile_ptr off, bfd_vma maxpagesize)
+{
+ return ((vma - off) % maxpagesize);
+}
+
/* Assign file positions to the sections based on the mapping from
sections to segments. This function also sets up some fields in
the file header, and writes out the program headers. */
static bfd_boolean
-assign_file_positions_for_segments (bfd *abfd)
+assign_file_positions_for_segments (bfd *abfd, struct bfd_link_info *link_info)
{
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
unsigned int count;
if (bed->elf_backend_modify_segment_map)
{
- if (! (*bed->elf_backend_modify_segment_map) (abfd))
+ if (! (*bed->elf_backend_modify_segment_map) (abfd, link_info))
return FALSE;
}
&& (m->sections[0]->flags & SEC_ALLOC) != 0)
{
if ((abfd->flags & D_PAGED) != 0)
- off += (m->sections[0]->vma - off) % bed->maxpagesize;
+ off += vma_page_aligned_bias (m->sections[0]->vma, off,
+ bed->maxpagesize);
else
{
bfd_size_type align;
align = secalign;
}
- off += (m->sections[0]->vma - off) % (1 << align);
+ off += vma_page_aligned_bias (m->sections[0]->vma, off,
+ 1 << align);
}
}
not have the SEC_LOAD case just above, and then
this was necessary, but now I'm not sure. */
if ((abfd->flags & D_PAGED) != 0)
- adjust = (sec->vma - voff) % bed->maxpagesize;
+ adjust = vma_page_aligned_bias (sec->vma, voff,
+ bed->maxpagesize);
else
- adjust = (sec->vma - voff) % align;
+ adjust = vma_page_aligned_bias (sec->vma, voff,
+ align);
}
else
adjust = 0;
We also don't set the positions of the .symtab and .strtab here. */
static bfd_boolean
-assign_file_positions_except_relocs (bfd *abfd)
+assign_file_positions_except_relocs (bfd *abfd,
+ struct bfd_link_info *link_info)
{
struct elf_obj_tdata * const tdata = elf_tdata (abfd);
Elf_Internal_Ehdr * const i_ehdrp = elf_elfheader (abfd);
/* Assign file positions for the loaded sections based on the
assignment of sections to segments. */
- if (! assign_file_positions_for_segments (abfd))
+ if (! assign_file_positions_for_segments (abfd, link_info))
return FALSE;
/* Assign file positions for the other sections. */
? "*unknown*"
: hdr->bfd_section->name)));
if ((abfd->flags & D_PAGED) != 0)
- off += (hdr->sh_addr - off) % bed->maxpagesize;
+ off += vma_page_aligned_bias (hdr->sh_addr, off,
+ bed->maxpagesize);
else
- off += (hdr->sh_addr - off) % hdr->sh_addralign;
+ off += vma_page_aligned_bias (hdr->sh_addr, off,
+ hdr->sh_addralign);
off = _bfd_elf_assign_file_position_for_section (hdr, off,
FALSE);
}
2. It is an allocated segment,
3. There is an output section associated with it,
4. The section has not already been allocated to a previous segment.
- 5. PT_TLS segment includes only SHF_TLS sections.
- 6. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. */
+ 5. PT_GNU_STACK segments do not include any sections.
+ 6. PT_TLS segment includes only SHF_TLS sections.
+ 7. SHF_TLS sections are only in PT_TLS or PT_LOAD segments. */
#define INCLUDE_SECTION_IN_SEGMENT(section, segment, bed) \
((((segment->p_paddr \
? IS_CONTAINED_BY_LMA (section, segment, segment->p_paddr) \
&& (section->flags & SEC_ALLOC) != 0) \
|| IS_COREFILE_NOTE (segment, section)) \
&& section->output_section != NULL \
+ && segment->p_type != PT_GNU_STACK \
&& (segment->p_type != PT_TLS \
|| (section->flags & SEC_THREAD_LOCAL)) \
&& (segment->p_type == PT_LOAD \
if (IS_SOLARIS_PT_INTERP (segment, section))
{
/* Mininal change so that the normal section to segment
- assigment code will work. */
+ assignment code will work. */
segment->p_vaddr = section->vma;
break;
}
char *outbound_shndx;
int idx;
bfd_size_type amt;
+ bfd_boolean name_local_sections;
if (!elf_map_symbols (abfd))
return FALSE;
outbound_shndx += sizeof (Elf_External_Sym_Shndx);
}
+ name_local_sections
+ = (bed->elf_backend_name_local_section_symbols
+ && bed->elf_backend_name_local_section_symbols (abfd));
+
syms = bfd_get_outsymbols (abfd);
for (idx = 0; idx < symcount; idx++)
{
flagword flags = syms[idx]->flags;
int type;
- if ((flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM)
+ if (!name_local_sections
+ && (flags & (BSF_SECTION_SYM | BSF_GLOBAL)) == BSF_SECTION_SYM)
{
/* Local section symbols have no name. */
sym.st_name = 0;
bfd_boolean
_bfd_elf_set_section_contents (bfd *abfd,
sec_ptr section,
- void *location,
+ const void *location,
file_ptr offset,
bfd_size_type count)
{
bfd_reloc_status_type
_bfd_elf_rel_vtable_reloc_fn
(bfd *abfd ATTRIBUTE_UNUSED, arelent *re ATTRIBUTE_UNUSED,
- struct symbol_cache_entry *symbol ATTRIBUTE_UNUSED,
+ struct bfd_symbol *symbol ATTRIBUTE_UNUSED,
void *data ATTRIBUTE_UNUSED, asection *is ATTRIBUTE_UNUSED,
bfd *obfd ATTRIBUTE_UNUSED, char **errmsg ATTRIBUTE_UNUSED)
{
elf_tdata (abfd)->core_command
= _bfd_elfcore_strndup (abfd, note->descdata + 0x7c, 31);
- return TRUE;
+ return elfcore_make_note_pseudosection (abfd, ".note.netbsdcore.procinfo",
+ note);
}
static bfd_boolean
bfd_vma
_bfd_elf_rela_local_sym (bfd *abfd,
Elf_Internal_Sym *sym,
- asection *sec,
+ asection **psec,
Elf_Internal_Rela *rel)
{
+ asection *sec = *psec;
bfd_vma relocation;
relocation = (sec->output_section->vma
&& ELF_ST_TYPE (sym->st_info) == STT_SECTION
&& sec->sec_info_type == ELF_INFO_TYPE_MERGE)
{
- asection *msec;
-
- msec = sec;
rel->r_addend =
- _bfd_merged_section_offset (abfd, &msec,
+ _bfd_merged_section_offset (abfd, psec,
elf_section_data (sec)->sec_info,
sym->st_value + rel->r_addend,
- 0)
- - relocation;
- rel->r_addend += msec->output_section->vma + msec->output_offset;
+ 0);
+ sec = *psec;
+ rel->r_addend -= relocation;
+ rel->r_addend += sec->output_section->vma + sec->output_offset;
}
return relocation;
}
projects / deliverable / binutils-gdb.git / blobdiff