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Add support for target specific processing of ELF segments

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This commit is contained in:
Nick Clifton 1999-11-26 09:52:23 +00:00
parent ba3d4249ed
commit 20cfcaae7b
4 changed files with 82 additions and 17 deletions
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68
bfd/elf.c
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@ -53,6 +53,7 @@ static boolean assign_section_numbers PARAMS ((bfd *));
static INLINE int sym_is_global PARAMS ((bfd *, asymbol *));
static boolean elf_map_symbols PARAMS ((bfd *));
static bfd_size_type get_program_header_size PARAMS ((bfd *));
static boolean elfcore_read_notes PARAMS ((bfd *, bfd_vma, bfd_vma));
/* Swap version information in and out. The version information is
currently size independent. If that ever changes, this code will
@ -1387,31 +1388,20 @@ _bfd_elf_new_section_hook (abfd, sec)
*/
boolean
bfd_section_from_phdr (abfd, hdr, index)
_bfd_elf_make_section_from_phdr (abfd, hdr, index, typename)
bfd *abfd;
Elf_Internal_Phdr *hdr;
int index;
const char *typename;
{
asection *newsect;
char *name;
char *typename;
char namebuf[64];
int split;
split = ((hdr->p_memsz > 0)
&& (hdr->p_filesz > 0)
&& (hdr->p_memsz > hdr->p_filesz));
switch (hdr->p_type)
{
case PT_NULL: typename = "null"; break;
case PT_LOAD: typename = "load"; break;
case PT_DYNAMIC: typename = "dynamic"; break;
case PT_INTERP: typename = "interp"; break;
case PT_NOTE: typename = "note"; break;
case PT_SHLIB: typename = "shlib"; break;
case PT_PHDR: typename = "phdr"; break;
default: typename = "segment"; break;
}
sprintf (namebuf, "%s%d%s", typename, index, split ? "a" : "");
name = bfd_alloc (abfd, strlen (namebuf) + 1);
if (!name)
@ -1467,6 +1457,52 @@ bfd_section_from_phdr (abfd, hdr, index)
return true;
}
boolean
bfd_section_from_phdr (abfd, hdr, index)
bfd *abfd;
Elf_Internal_Phdr *hdr;
int index;
{
struct elf_backend_data *bed;
switch (hdr->p_type)
{
case PT_NULL:
return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "null");
case PT_LOAD:
return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "load");
case PT_DYNAMIC:
return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "dynamic");
case PT_INTERP:
return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "interp");
case PT_NOTE:
if (! _bfd_elf_make_section_from_phdr (abfd, hdr, index, "note"))
return false;
if (! elfcore_read_notes (abfd, hdr->p_offset, hdr->p_filesz))
return false;
return true;
case PT_SHLIB:
return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "shlib");
case PT_PHDR:
return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "phdr");
default:
/* Check for any processor-specific program segment types.
If no handler for them, default to making "segment" sections. */
bed = get_elf_backend_data (abfd);
if (bed->elf_backend_section_from_phdr)
return (*bed->elf_backend_section_from_phdr) (abfd, hdr, index);
else
return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "segment");
}
}
/* Initialize REL_HDR, the section-header for new section, containing
relocations against ASECT. If USE_RELA_P is true, we use RELA
relocations; otherwise, we use REL relocations. */
@ -5308,6 +5344,8 @@ elfcore_read_notes (abfd, offset, size)
}
/* FIXME: This function is now unnecessary. Callers can just call
bfd_section_from_phdr directly. */
boolean
_bfd_elfcore_section_from_phdr (abfd, phdr, sec_num)
@ -5318,10 +5356,6 @@ _bfd_elfcore_section_from_phdr (abfd, phdr, sec_num)
if (! bfd_section_from_phdr (abfd, phdr, sec_num))
return false;
if (phdr->p_type == PT_NOTE
&& ! elfcore_read_notes (abfd, phdr->p_offset, phdr->p_filesz))
return false;
return true;
}