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* elfxx-ia64.c (is_unwind_section_name): Add target vector as

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argument so we can handle HP-UX specially.
	(elfNN_ia64_hpux_vec): New for use in is_unwind_section_name.
	(elfNN_hpux_backend_section_from_bfd_section): New for support
	of SHN_IA_64_ANSI_COMMON.
	(elfNN_ia64_relax_section): Add support for SHN_IA_64_ANSI_COMMON.
	(is_unwind_section_name): Add special HP-UX support.
	(elfNN_ia64_section_from_shdr): Add support for more sections.
	(elfNN_ia64_fake_sections): Modify is_unwind_section_name call and
	add support for more sections.
	(elfNN_ia64_additional_program_headers): Modify
	is_unwind_section_name call.
	(elfNN_ia64_modify_segment_map): Remove assumption that there is
	only one unwind section in segment.
This commit is contained in:
Alan Modra 2002-01-06 11:14:19 +00:00
parent 00428cca73
commit d9cf1b54c5
2 changed files with 89 additions and 6 deletions
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17
bfd/ChangeLog
View File

@ -1,3 +1,20 @@
2002-01-06 Steve Ellcey <sje@cup.hp.com>
* elfxx-ia64.c (is_unwind_section_name): Add target vector as
argument so we can handle HP-UX specially.
(elfNN_ia64_hpux_vec): New for use in is_unwind_section_name.
(elfNN_hpux_backend_section_from_bfd_section): New for support
of SHN_IA_64_ANSI_COMMON.
(elfNN_ia64_relax_section): Add support for SHN_IA_64_ANSI_COMMON.
(is_unwind_section_name): Add special HP-UX support.
(elfNN_ia64_section_from_shdr): Add support for more sections.
(elfNN_ia64_fake_sections): Modify is_unwind_section_name call and
add support for more sections.
(elfNN_ia64_additional_program_headers): Modify
is_unwind_section_name call.
(elfNN_ia64_modify_segment_map): Remove assumption that there is
only one unwind section in segment.
2002-01-06 Alan Modra <amodra@bigpond.net.au>
* syms.c (_bfd_generic_make_empty_symbol): New function.

78
bfd/elfxx-ia64.c
View File

@ -163,7 +163,7 @@ static boolean elfNN_ia64_relax_section
PARAMS((bfd *abfd, asection *sec, struct bfd_link_info *link_info,
boolean *again));
static boolean is_unwind_section_name
PARAMS ((const char *));
PARAMS ((bfd *abfd, const char *));
static boolean elfNN_ia64_section_from_shdr
PARAMS ((bfd *, ElfNN_Internal_Shdr *, char *));
static boolean elfNN_ia64_section_flags
@ -307,8 +307,12 @@ static boolean elfNN_ia64_print_private_bfd_data
PARAMS ((bfd *abfd, PTR ptr));
static enum elf_reloc_type_class elfNN_ia64_reloc_type_class
PARAMS ((const Elf_Internal_Rela *));
static boolean elfNN_ia64_hpux_vec
PARAMS ((const bfd_target *vec));
static void elfNN_hpux_post_process_headers
PARAMS ((bfd *abfd, struct bfd_link_info *info));
boolean elfNN_hpux_backend_section_from_bfd_section
PARAMS ((bfd *abfd, ElfNN_Internal_Shdr *hdr, asection *sec, int *retval));
/* ia64-specific relocation */
@ -772,6 +776,8 @@ elfNN_ia64_relax_section (abfd, sec, link_info, again)
tsec = bfd_abs_section_ptr;
else if (isym.st_shndx == SHN_COMMON)
tsec = bfd_com_section_ptr;
else if (isym.st_shndx == SHN_IA_64_ANSI_COMMON)
tsec = bfd_com_section_ptr;
else
tsec = bfd_section_from_elf_index (abfd, isym.st_shndx);
@ -973,11 +979,16 @@ elfNN_ia64_relax_section (abfd, sec, link_info, again)
/* Return true if NAME is an unwind table section name. */
static inline boolean
is_unwind_section_name (name)
is_unwind_section_name (abfd, name)
bfd *abfd;
const char *name;
{
size_t len1, len2, len3;
if (elfNN_ia64_hpux_vec (abfd->xvec)
&& !strcmp (name, ELF_STRING_ia64_unwind_hdr))
return false;
len1 = sizeof (ELF_STRING_ia64_unwind) - 1;
len2 = sizeof (ELF_STRING_ia64_unwind_info) - 1;
len3 = sizeof (ELF_STRING_ia64_unwind_once) - 1;
@ -1005,6 +1016,10 @@ elfNN_ia64_section_from_shdr (abfd, hdr, name)
switch (hdr->sh_type)
{
case SHT_IA_64_UNWIND:
case SHT_INIT_ARRAY:
case SHT_FINI_ARRAY:
case SHT_PREINIT_ARRAY:
case SHT_IA_64_HP_OPT_ANOT:
break;
case SHT_IA_64_EXT:
@ -1052,7 +1067,7 @@ elfNN_ia64_fake_sections (abfd, hdr, sec)
name = bfd_get_section_name (abfd, sec);
if (is_unwind_section_name (name))
if (is_unwind_section_name (abfd, name))
{
/* We don't have the sections numbered at this point, so sh_info
is set later, in elfNN_ia64_final_write_processing. */
@ -1061,6 +1076,14 @@ elfNN_ia64_fake_sections (abfd, hdr, sec)
}
else if (strcmp (name, ELF_STRING_ia64_archext) == 0)
hdr->sh_type = SHT_IA_64_EXT;
else if (strcmp (name, ".init_array") == 0)
hdr->sh_type = SHT_INIT_ARRAY;
else if (strcmp (name, ".fini_array") == 0)
hdr->sh_type = SHT_FINI_ARRAY;
else if (strcmp (name, ".preinit_array") == 0)
hdr->sh_type = SHT_PREINIT_ARRAY;
else if (strcmp (name, ".HP.opt_annot") == 0)
hdr->sh_type = SHT_IA_64_HP_OPT_ANOT;
else if (strcmp (name, ".reloc") == 0)
/*
* This is an ugly, but unfortunately necessary hack that is
@ -1331,7 +1354,7 @@ elfNN_ia64_additional_program_headers (abfd)
/* Count how many PT_IA_64_UNWIND segments we need. */
for (s = abfd->sections; s; s = s->next)
if (is_unwind_section_name(s->name) && (s->flags & SEC_LOAD))
if (is_unwind_section_name (abfd, s->name) && (s->flags & SEC_LOAD))
++ret;
return ret;
@ -1344,6 +1367,8 @@ elfNN_ia64_modify_segment_map (abfd)
struct elf_segment_map *m, **pm;
Elf_Internal_Shdr *hdr;
asection *s;
boolean unwind_found;
asection *unwind_sec;
/* If we need a PT_IA_64_ARCHEXT segment, it must come before
all PT_LOAD segments. */
@ -1386,8 +1411,24 @@ elfNN_ia64_modify_segment_map (abfd)
if (s && (s->flags & SEC_LOAD))
{
for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
if (m->p_type == PT_IA_64_UNWIND && m->sections[0] == s)
break;
if (m->p_type == PT_IA_64_UNWIND)
{
/* Look through all sections in the unwind segment
for a match since there may be multiple sections
to a segment. */
unwind_sec = m->sections[0];
unwind_found = false;
while (unwind_sec != NULL && !unwind_found)
{
if (unwind_sec == s)
unwind_found = true;
else
unwind_sec = unwind_sec -> next;
}
if (unwind_found)
break;
}
if (m == NULL)
{
@ -4421,6 +4462,13 @@ elfNN_ia64_reloc_type_class (rela)
}
}
static boolean
elfNN_ia64_hpux_vec (const bfd_target *vec)
{
extern const bfd_target bfd_elfNN_ia64_hpux_big_vec;
return (vec == & bfd_elfNN_ia64_hpux_big_vec);
}
static void
elfNN_hpux_post_process_headers (abfd, info)
bfd *abfd;
@ -4431,6 +4479,21 @@ elfNN_hpux_post_process_headers (abfd, info)
i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX;
i_ehdrp->e_ident[EI_ABIVERSION] = 1;
}
boolean
elfNN_hpux_backend_section_from_bfd_section (abfd, hdr, sec, retval)
bfd *abfd ATTRIBUTE_UNUSED;
Elf32_Internal_Shdr *hdr ATTRIBUTE_UNUSED;
asection *sec;
int *retval;
{
if (bfd_is_com_section (sec))
{
*retval = SHN_IA_64_ANSI_COMMON;
return true;
}
return false;
}
#define TARGET_LITTLE_SYM bfd_elfNN_ia64_little_vec
#define TARGET_LITTLE_NAME "elfNN-ia64-little"
@ -4542,6 +4605,9 @@ elfNN_hpux_post_process_headers (abfd, info)
#undef elf_backend_post_process_headers
#define elf_backend_post_process_headers elfNN_hpux_post_process_headers
#undef elf_backend_section_from_bfd_section
#define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
#undef ELF_MAXPAGESIZE
#define ELF_MAXPAGESIZE 0x1000 /* 1K */