/* Object file "section" support for the BFD library.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000
+ 2000, 2001
Free Software Foundation, Inc.
Written by Cygnus Support.
. some relocation information too. *}
.#define SEC_RELOC 0x004
.
-.#if 0 {* Obsolete ? *}
-.#define SEC_BALIGN 0x008
-.#endif
+. {* ELF reserves 4 processor specific bits and 8 operating system
+. specific bits in sh_flags; at present we can get away with just
+. one in communicating between the assembler and BFD, but this
+. isn't a good long-term solution. *}
+.#define SEC_ARCH_BIT_0 0x008
.
. {* A signal to the OS that the section contains read only data. *}
.#define SEC_READONLY 0x010
. {* A mark flag used by some of the linker backends. *}
. unsigned int linker_mark : 1;
.
+. {* Another mark flag used by some of the linker backends. Set for
+. output sections that have a input section. *}
+. unsigned int linker_has_input : 1;
+.
. {* A mark flag used by some linker backends for garbage collection. *}
. unsigned int gc_mark : 1;
.
.
. struct bfd_comdat_info *comdat;
.
-. {* Points to the kept section if this section is a link-once section,
-. and is discarded. *}
-. struct sec *kept_section;
-.
. {* When a section is being output, this value changes as more
. linenumbers are written out. *}
.
/* name, id, index, next, flags, user_set_vma, reloc_done, */ \
{ NAME, IDX, 0, NULL, FLAGS, 0, 0, \
\
- /* linker_mark, gc_mark, segment_mark, vma, lma, _cooked_size, */ \
- 0, 1, 0, 0, 0, 0, \
+ /* linker_mark, linker_has_input, gc_mark, segment_mark, */ \
+ 0, 0, 1, 0, \
+ \
+ /* vma, lma, _cooked_size, _raw_size, */ \
+ 0, 0, 0, 0, \
\
- /* _raw_size, output_offset, output_section, alignment_power, */ \
- 0, 0, (struct sec *) &SEC, 0, \
+ /* output_offset, output_section, alignment_power, */ \
+ 0, (struct sec *) &SEC, 0, \
\
/* relocation, orelocation, reloc_count, filepos, rel_filepos, */ \
NULL, NULL, 0, 0, 0, \
/* line_filepos, userdata, contents, lineno, lineno_count, */ \
0, NULL, NULL, NULL, 0, \
\
- /* comdat, kept_section, moving_line_filepos, target_index, */ \
- NULL, NULL, 0, 0, \
+ /* entsize, comdat, moving_line_filepos, */ \
+ 0, NULL, 0, \
\
- /* used_by_bfd, constructor_chain, owner, */ \
- NULL, NULL, NULL, \
+ /* target_index, used_by_bfd, constructor_chain, owner, */ \
+ 0, NULL, NULL, NULL, \
\
/* symbol, */ \
(struct symbol_cache_entry *) &global_syms[IDX], \
char *sname;
len = strlen (templat);
- sname = bfd_malloc (len + 8);
+ sname = bfd_malloc ((bfd_size_type) len + 8);
if (sname == NULL)
return NULL;
strcpy (sname, templat);
sect = sect->next;
}
- newsect = (asection *) bfd_zalloc (abfd, sizeof (asection));
+ newsect = (asection *) bfd_zalloc (abfd, (bfd_size_type) sizeof (asection));
if (newsect == NULL)
return NULL;
newsect->line_filepos = 0;
newsect->owner = abfd;
newsect->comdat = NULL;
- newsect->kept_section = NULL;
/* Create a symbol whos only job is to point to this section. This is
useful for things like relocs which are relative to the base of a
bfd_set_section_contents
SYNOPSIS
- boolean bfd_set_section_contents
- (bfd *abfd,
- asection *section,
- PTR data,
- file_ptr offset,
- bfd_size_type count);
+ boolean bfd_set_section_contents (bfd *abfd, asection *section,
+ PTR data, file_ptr offset,
+ bfd_size_type count);
DESCRIPTION
Sets the contents of the section @var{section} in BFD
return (false);
}
- if (offset < 0)
+ sz = bfd_get_section_size_now (abfd, section);
+ if ((bfd_size_type) offset > sz
+ || count > sz
+ || offset + count > sz
+ || count != (size_t) count)
{
- bad_val:
bfd_set_error (bfd_error_bad_value);
return false;
}
- sz = bfd_get_section_size_now (abfd, section);
- if ((bfd_size_type) offset > sz
- || count > sz
- || offset + count > sz)
- goto bad_val;
switch (abfd->direction)
{
/* Record a copy of the data in memory if desired. */
if (section->contents
&& location != section->contents + offset)
- memcpy (section->contents + offset, location, count);
+ memcpy (section->contents + offset, location, (size_t) count);
if (BFD_SEND (abfd, _bfd_set_section_contents,
(abfd, section, location, offset, count)))
bfd_get_section_contents
SYNOPSIS
- boolean bfd_get_section_contents
- (bfd *abfd, asection *section, PTR location,
- file_ptr offset, bfd_size_type count);
+ boolean bfd_get_section_contents (bfd *abfd, asection *section,
+ PTR location, file_ptr offset,
+ bfd_size_type count);
DESCRIPTION
Read data from @var{section} in BFD @var{abfd}
if (section->flags & SEC_CONSTRUCTOR)
{
- memset (location, 0, (unsigned) count);
+ memset (location, 0, (size_t) count);
return true;
}
- if (offset < 0)
+ /* Even if reloc_done is true, this function reads unrelocated
+ contents, so we want the raw size. */
+ sz = section->_raw_size;
+ if ((bfd_size_type) offset > sz
+ || count > sz
+ || offset + count > sz
+ || count != (size_t) count)
{
- bad_val:
bfd_set_error (bfd_error_bad_value);
return false;
}
- /* Even if reloc_done is true, this function reads unrelocated
- contents, so we want the raw size. */
- sz = section->_raw_size;
- if ((bfd_size_type) offset > sz || count > sz || offset + count > sz)
- goto bad_val;
if (count == 0)
/* Don't bother. */
if ((section->flags & SEC_HAS_CONTENTS) == 0)
{
- memset (location, 0, (unsigned) count);
+ memset (location, 0, (size_t) count);
return true;
}
bfd_copy_private_section_data
SYNOPSIS
- boolean bfd_copy_private_section_data(bfd *ibfd, asection *isec, bfd *obfd, asection *osec);
+ boolean bfd_copy_private_section_data (bfd *ibfd, asection *isec,
+ bfd *obfd, asection *osec);
DESCRIPTION
Copy private section information from @var{isec} in the BFD
orders have not yet been set up. So why are we checking them? --
Ian */
os = s->output_section;
+
+ /* Handle a section that wasn't output. */
+ if (os == NULL)
+ return;
+
for (p = os->link_order_head, pp = NULL; p != NULL; pp = p, p = p->next)
if (p->type == bfd_indirect_link_order
&& p->u.indirect.section == s)
projects / deliverable / binutils-gdb.git / blobdiff