/* Object file "section" support for the BFD library.
Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
Written by Cygnus Support.
.
. {* If SEC_LINK_ONCE is set, this bitfield describes how the linker
. should handle duplicate sections. *}
-.#define SEC_LINK_DUPLICATES 0x40000
+.#define SEC_LINK_DUPLICATES 0xc0000
.
. {* This value for SEC_LINK_DUPLICATES means that duplicate
. sections with the same name should simply be discarded. *}
. {* This value for SEC_LINK_DUPLICATES means that the linker
. should warn if there are any duplicate sections, although
. it should still only link one copy. *}
-.#define SEC_LINK_DUPLICATES_ONE_ONLY 0x80000
+.#define SEC_LINK_DUPLICATES_ONE_ONLY 0x40000
.
. {* This value for SEC_LINK_DUPLICATES means that the linker
. should warn if any duplicate sections are a different size. *}
-.#define SEC_LINK_DUPLICATES_SAME_SIZE 0x100000
+.#define SEC_LINK_DUPLICATES_SAME_SIZE 0x80000
.
. {* This value for SEC_LINK_DUPLICATES means that the linker
. should warn if any duplicate sections contain different
. relocation or other arcane processing. It is skipped when
. going through the first-pass output, trusting that someone
. else up the line will take care of it later. *}
-.#define SEC_LINKER_CREATED 0x200000
+.#define SEC_LINKER_CREATED 0x100000
.
. {* This section should not be subject to garbage collection.
. Also set to inform the linker that this section should not be
. listed in the link map as discarded. *}
-.#define SEC_KEEP 0x400000
+.#define SEC_KEEP 0x200000
.
. {* This section contains "short" data, and should be placed
. "near" the GP. *}
-.#define SEC_SMALL_DATA 0x800000
+.#define SEC_SMALL_DATA 0x400000
.
. {* Attempt to merge identical entities in the section.
. Entity size is given in the entsize field. *}
-.#define SEC_MERGE 0x1000000
+.#define SEC_MERGE 0x800000
.
. {* If given with SEC_MERGE, entities to merge are zero terminated
. strings where entsize specifies character size instead of fixed
. size entries. *}
-.#define SEC_STRINGS 0x2000000
+.#define SEC_STRINGS 0x1000000
.
. {* This section contains data about section groups. *}
-.#define SEC_GROUP 0x4000000
+.#define SEC_GROUP 0x2000000
.
. {* The section is a COFF shared library section. This flag is
. only for the linker. If this type of section appears in
. might be cleaner to have some more general mechanism to
. allow the back end to control what the linker does with
. sections. *}
-.#define SEC_COFF_SHARED_LIBRARY 0x10000000
+.#define SEC_COFF_SHARED_LIBRARY 0x4000000
.
. {* This section contains data which may be shared with other
. executables or shared objects. This is for COFF only. *}
-.#define SEC_COFF_SHARED 0x20000000
+.#define SEC_COFF_SHARED 0x8000000
.
. {* When a section with this flag is being linked, then if the size of
. the input section is less than a page, it should not cross a page
. boundary. If the size of the input section is one page or more,
. it should be aligned on a page boundary. This is for TI
. TMS320C54X only. *}
-.#define SEC_TIC54X_BLOCK 0x40000000
+.#define SEC_TIC54X_BLOCK 0x10000000
.
. {* Conditionally link this section; do not link if there are no
. references found to any symbol in the section. This is for TI
. TMS320C54X only. *}
-.#define SEC_TIC54X_CLINK 0x80000000
+.#define SEC_TIC54X_CLINK 0x20000000
+.
+. {* Indicate that section has the no read flag set. This happens
+. when memory read flag isn't set. *}
+.#define SEC_COFF_NOREAD 0x40000000
.
. {* End of section flags. *}
.
. output sections that have an input section. *}
. unsigned int linker_has_input : 1;
.
-. {* Mark flags used by some linker backends for garbage collection. *}
+. {* Mark flag used by some linker backends for garbage collection. *}
. unsigned int gc_mark : 1;
-. unsigned int gc_mark_from_eh : 1;
.
. {* The following flags are used by the ELF linker. *}
.
. {* Nonzero if this section has TLS related relocations. *}
. unsigned int has_tls_reloc:1;
.
+. {* Nonzero if this section has a call to __tls_get_addr. *}
+. unsigned int has_tls_get_addr_call:1;
+.
. {* Nonzero if this section has a gp reloc. *}
. unsigned int has_gp_reloc:1;
.
. {* name, id, index, next, prev, flags, user_set_vma, *} \
. { NAME, IDX, 0, NULL, NULL, FLAGS, 0, \
. \
-. {* linker_mark, linker_has_input, gc_mark, gc_mark_from_eh, *} \
-. 0, 0, 1, 0, \
+. {* linker_mark, linker_has_input, gc_mark, *} \
+. 0, 0, 1, \
. \
. {* segment_mark, sec_info_type, use_rela_p, has_tls_reloc, *} \
. 0, 0, 0, 0, \
. \
-. {* has_gp_reloc, need_finalize_relax, reloc_done, *} \
-. 0, 0, 0, \
+. {* has_tls_get_addr_call, has_gp_reloc, need_finalize_relax, *} \
+. 0, 0, 0, \
. \
-. {* vma, lma, size, rawsize *} \
-. 0, 0, 0, 0, \
+. {* reloc_done, vma, lma, size, rawsize *} \
+. 0, 0, 0, 0, 0, \
. \
. {* output_offset, output_section, alignment_power, *} \
. 0, (struct bfd_section *) &SEC, 0, \
if ((section->flags & SEC_IN_MEMORY) != 0)
{
+ if (section->contents == NULL)
+ {
+ /* This can happen because of errors earlier on in the linking process.
+ We do not want to seg-fault here, so clear the flag and return an
+ error code. */
+ section->flags &= ~ SEC_IN_MEMORY;
+ bfd_set_error (bfd_error_invalid_operation);
+ return FALSE;
+ }
+
memcpy (location, section->contents + offset, (size_t) count);
return TRUE;
}
projects / deliverable / binutils-gdb.git / blobdiff