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* readelf.c (get_segment_type): Handle PT_GNU_STACK.
bfd/
	* elf.c (_bfd_elf_print_private_bfd_data): Handle PT_GNU_STACK.
	(bfd_section_from_phdr): Likewise.
	(map_sections_to_segments): Create PT_GNU_STACK segment header.
	(get_program_header_size): Count with PT_GNU_STACK.
	* elf-bfd.h (struct elf_obj_tdata): Add stack_flags.
	* elflink.h (bfd_elfNN_size_dynamic_sections): Set stack_flags.
include/
	* bfdlink.h (struct bfd_link_info): Add execstack and noexecstack.
	* elf/common.h (PT_GNU_STACK): Define.
ld/
	* ldgram.y (phdr_type): Grok PT_GNU_STACK.
	* emultempl/elf32.em (gld${EMULATION_NAME}_handle_option): Add
	-z execstack and -z noexecstack.
	(gld${EMULATION_NAME}_list_options): Likewise.
	* scripttempl/elf.sc: If not -r, discard .note.GNU-stack section.
This commit is contained in:
Jakub Jelinek
2003-06-03 22:27:24 +00:00
parent 65982ba6e7
commit 9ee5e4996f
13 changed files with 118 additions and 0 deletions
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25
bfd/elf.c
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@@ -1070,6 +1070,7 @@ _bfd_elf_print_private_bfd_data (abfd, farg)
case PT_PHDR: pt = "PHDR"; break;
case PT_TLS: pt = "TLS"; break;
case PT_GNU_EH_FRAME: pt = "EH_FRAME"; break;
case PT_GNU_STACK: pt = "STACK"; break;
default: sprintf (buf, "0x%lx", p->p_type); pt = buf; break;
}
fprintf (f, "%8s off 0x", pt);
@@ -2296,6 +2297,9 @@ bfd_section_from_phdr (abfd, hdr, index)
return _bfd_elf_make_section_from_phdr (abfd, hdr, index,
"eh_frame_hdr");
case PT_GNU_STACK:
return _bfd_elf_make_section_from_phdr (abfd, hdr, index, "stack");
default:
/* Check for any processor-specific program segment types.
If no handler for them, default to making "segment" sections. */
@@ -3513,6 +3517,21 @@ map_sections_to_segments (abfd)
pm = &m->next;
}
if (elf_tdata (abfd)->stack_flags)
{
amt = sizeof (struct elf_segment_map);
m = (struct elf_segment_map *) bfd_zalloc (abfd, amt);
if (m == NULL)
goto error_return;
m->next = NULL;
m->p_type = PT_GNU_STACK;
m->p_flags = elf_tdata (abfd)->stack_flags;
m->p_flags_valid = 1;
*pm = m;
pm = &m->next;
}
free (sections);
sections = NULL;
@@ -4099,6 +4118,12 @@ get_program_header_size (abfd)
++segs;
}
if (elf_tdata (abfd)->stack_flags)
{
/* We need a PT_GNU_STACK segment. */
++segs;
}
for (s = abfd->sections; s != NULL; s = s->next)
{
if ((s->flags & SEC_LOAD) != 0