/* Object file "section" support for the BFD library.
- Copyright (C) 1990-2016 Free Software Foundation, Inc.
+ Copyright (C) 1990-2018 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
data in place until a <<bfd_get_section_contents>> call is
made. Other back ends may read in all the data at once. For
example, an S-record file has to be read once to determine the
- size of the data. An IEEE-695 file doesn't contain raw data in
- sections, but data and relocation expressions intermixed, so
- the data area has to be parsed to get out the data and
- relocations.
+ size of the data.
INODE
Section Output, typedef asection, Section Input, Sections
. synthesized from other information. *}
. flagword flags;
.
-.#define SEC_NO_FLAGS 0x000
+.#define SEC_NO_FLAGS 0x0
.
. {* Tells the OS to allocate space for this section when loading.
. This is clear for a section containing debug information only. *}
-.#define SEC_ALLOC 0x001
+.#define SEC_ALLOC 0x1
.
. {* Tells the OS to load the section from the file when loading.
. This is clear for a .bss section. *}
-.#define SEC_LOAD 0x002
+.#define SEC_LOAD 0x2
.
. {* The section contains data still to be relocated, so there is
. some relocation information too. *}
-.#define SEC_RELOC 0x004
+.#define SEC_RELOC 0x4
.
. {* A signal to the OS that the section contains read only data. *}
-.#define SEC_READONLY 0x008
+.#define SEC_READONLY 0x8
.
. {* The section contains code only. *}
-.#define SEC_CODE 0x010
+.#define SEC_CODE 0x10
.
. {* The section contains data only. *}
-.#define SEC_DATA 0x020
+.#define SEC_DATA 0x20
.
. {* The section will reside in ROM. *}
-.#define SEC_ROM 0x040
+.#define SEC_ROM 0x40
.
. {* The section contains constructor information. This section
. type is used by the linker to create lists of constructors and
. sections called <<__CTOR_LIST__>> and relocate the data
. contained within - exactly the operations it would peform on
. standard data. *}
-.#define SEC_CONSTRUCTOR 0x080
+.#define SEC_CONSTRUCTOR 0x80
.
. {* The section has contents - a data section could be
. <<SEC_ALLOC>> | <<SEC_HAS_CONTENTS>>; a debug section could be
. <<SEC_HAS_CONTENTS>> *}
-.#define SEC_HAS_CONTENTS 0x100
+.#define SEC_HAS_CONTENTS 0x100
.
. {* An instruction to the linker to not output the section
. even if it has information which would normally be written. *}
-.#define SEC_NEVER_LOAD 0x200
+.#define SEC_NEVER_LOAD 0x200
.
. {* The section contains thread local data. *}
-.#define SEC_THREAD_LOCAL 0x400
+.#define SEC_THREAD_LOCAL 0x400
.
-. {* The section has GOT references. This flag is only for the
-. linker, and is currently only used by the elf32-hppa back end.
-. It will be set if global offset table references were detected
-. in this section, which indicate to the linker that the section
-. contains PIC code, and must be handled specially when doing a
-. static link. *}
-.#define SEC_HAS_GOT_REF 0x800
+. {* The section's size is fixed. Generic linker code will not
+. recalculate it and it is up to whoever has set this flag to
+. get the size right. *}
+.#define SEC_FIXED_SIZE 0x800
.
. {* The section contains common symbols (symbols may be defined
. multiple times, the value of a symbol is the amount of
. space it requires, and the largest symbol value is the one
. used). Most targets have exactly one of these (which we
. translate to bfd_com_section_ptr), but ECOFF has two. *}
-.#define SEC_IS_COMMON 0x1000
+.#define SEC_IS_COMMON 0x1000
.
. {* The section contains only debugging information. For
. example, this is set for ELF .debug and .stab sections.
. strip tests this flag to see if a section can be
. discarded. *}
-.#define SEC_DEBUGGING 0x2000
+.#define SEC_DEBUGGING 0x2000
.
. {* The contents of this section are held in memory pointed to
. by the contents field. This is checked by bfd_get_section_contents,
. and the data is retrieved from memory if appropriate. *}
-.#define SEC_IN_MEMORY 0x4000
+.#define SEC_IN_MEMORY 0x4000
.
. {* The contents of this section are to be excluded by the
. linker for executable and shared objects unless those
. objects are to be further relocated. *}
-.#define SEC_EXCLUDE 0x8000
+.#define SEC_EXCLUDE 0x8000
.
. {* The contents of this section are to be sorted based on the sum of
. the symbol and addend values specified by the associated relocation
. entries. Entries without associated relocation entries will be
. appended to the end of the section in an unspecified order. *}
-.#define SEC_SORT_ENTRIES 0x10000
+.#define SEC_SORT_ENTRIES 0x10000
.
. {* When linking, duplicate sections of the same name should be
. discarded, rather than being combined into a single section as
. is usually done. This is similar to how common symbols are
. handled. See SEC_LINK_DUPLICATES below. *}
-.#define SEC_LINK_ONCE 0x20000
+.#define SEC_LINK_ONCE 0x20000
.
. {* If SEC_LINK_ONCE is set, this bitfield describes how the linker
. should handle duplicate sections. *}
-.#define SEC_LINK_DUPLICATES 0xc0000
+.#define SEC_LINK_DUPLICATES 0xc0000
.
. {* This value for SEC_LINK_DUPLICATES means that duplicate
. sections with the same name should simply be discarded. *}
-.#define SEC_LINK_DUPLICATES_DISCARD 0x0
+.#define SEC_LINK_DUPLICATES_DISCARD 0x0
.
. {* 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 0x40000
+.#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. *}
. 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 0x100000
+.#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 0x200000
+.#define SEC_KEEP 0x200000
.
. {* This section contains "short" data, and should be placed
. "near" the GP. *}
-.#define SEC_SMALL_DATA 0x400000
+.#define SEC_SMALL_DATA 0x400000
.
. {* Attempt to merge identical entities in the section.
. Entity size is given in the entsize field. *}
-.#define SEC_MERGE 0x800000
+.#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 0x1000000
+.#define SEC_STRINGS 0x1000000
.
. {* This section contains data about section groups. *}
-.#define SEC_GROUP 0x2000000
+.#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 0x4000000
+.#define SEC_COFF_SHARED_LIBRARY 0x4000000
.
. {* This input section should be copied to output in reverse order
. as an array of pointers. This is for ELF linker internal use
. only. *}
-.#define SEC_ELF_REVERSE_COPY 0x4000000
+.#define SEC_ELF_REVERSE_COPY 0x4000000
.
. {* This section contains data which may be shared with other
. executables or shared objects. This is for COFF only. *}
-.#define SEC_COFF_SHARED 0x8000000
+.#define SEC_COFF_SHARED 0x8000000
.
. {* This section should be compressed. This is for ELF linker
. internal use only. *}
-.#define SEC_ELF_COMPRESS 0x8000000
+.#define SEC_ELF_COMPRESS 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 0x10000000
+.#define SEC_TIC54X_BLOCK 0x10000000
.
. {* This section should be renamed. This is for ELF linker
. internal use only. *}
-.#define SEC_ELF_RENAME 0x10000000
+.#define SEC_ELF_RENAME 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 0x20000000
+.#define SEC_TIC54X_CLINK 0x20000000
.
. {* This section contains vliw code. This is for Toshiba MeP only. *}
-.#define SEC_MEP_VLIW 0x20000000
+.#define SEC_MEP_VLIW 0x20000000
.
. {* Indicate that section has the no read flag set. This happens
. when memory read flag isn't set. *}
-.#define SEC_COFF_NOREAD 0x40000000
+.#define SEC_COFF_NOREAD 0x40000000
.
. {* Indicate that section has the purecode flag set. *}
-.#define SEC_ELF_PURECODE 0x80000000
+.#define SEC_ELF_PURECODE 0x80000000
.
. {* End of section flags. *}
.
. would use a comma expression, eg: "((ptr)->foo = val, TRUE)" and some
. compilers will complain about comma expressions that have no effect. *}
.static inline bfd_boolean
-.bfd_set_section_userdata (bfd * abfd ATTRIBUTE_UNUSED, asection * ptr, void * val)
+.bfd_set_section_userdata (bfd * abfd ATTRIBUTE_UNUSED, asection * ptr,
+. void * val)
.{
. ptr->userdata = val;
. return TRUE;
.}
.
.static inline bfd_boolean
-.bfd_set_section_alignment (bfd * abfd ATTRIBUTE_UNUSED, asection * ptr, unsigned int val)
+.bfd_set_section_alignment (bfd * abfd ATTRIBUTE_UNUSED, asection * ptr,
+. unsigned int val)
.{
. ptr->alignment_power = val;
. return TRUE;
.#define bfd_section_removed_from_list(ABFD, S) \
. ((S)->next == NULL ? (ABFD)->section_last != (S) : (S)->next->prev != (S))
.
-.#define BFD_FAKE_SECTION(SEC, FLAGS, SYM, NAME, IDX) \
+.#define BFD_FAKE_SECTION(SEC, SYM, NAME, IDX, FLAGS) \
. {* name, id, index, next, prev, flags, user_set_vma, *} \
-. { NAME, IDX, 0, NULL, NULL, FLAGS, 0, \
+. { NAME, IDX, 0, NULL, NULL, FLAGS, 0, \
. \
. {* linker_mark, linker_has_input, gc_mark, decompress_status, *} \
. 0, 0, 1, 0, \
. { NULL }, { NULL } \
. }
.
+.{* We use a macro to initialize the static asymbol structures because
+. traditional C does not permit us to initialize a union member while
+. gcc warns if we don't initialize it.
+. the_bfd, name, value, attr, section [, udata] *}
+.#ifdef __STDC__
+.#define GLOBAL_SYM_INIT(NAME, SECTION) \
+. { 0, NAME, 0, BSF_SECTION_SYM, SECTION, { 0 }}
+.#else
+.#define GLOBAL_SYM_INIT(NAME, SECTION) \
+. { 0, NAME, 0, BSF_SECTION_SYM, SECTION }
+.#endif
+.
*/
-/* We use a macro to initialize the static asymbol structures because
- traditional C does not permit us to initialize a union member while
- gcc warns if we don't initialize it. */
- /* the_bfd, name, value, attr, section [, udata] */
-#ifdef __STDC__
-#define GLOBAL_SYM_INIT(NAME, SECTION) \
- { 0, NAME, 0, BSF_SECTION_SYM, SECTION, { 0 }}
-#else
-#define GLOBAL_SYM_INIT(NAME, SECTION) \
- { 0, NAME, 0, BSF_SECTION_SYM, SECTION }
-#endif
-
/* These symbols are global, not specific to any BFD. Therefore, anything
that tries to change them is broken, and should be repaired. */
};
#define STD_SECTION(NAME, IDX, FLAGS) \
- BFD_FAKE_SECTION(_bfd_std_section[IDX], FLAGS, &global_syms[IDX], NAME, IDX)
+ BFD_FAKE_SECTION(_bfd_std_section[IDX], &global_syms[IDX], NAME, IDX, FLAGS)
asection _bfd_std_section[] = {
STD_SECTION (BFD_COM_SECTION_NAME, 0, SEC_IS_COMMON),
return TRUE;
}
-static unsigned int section_id = 0x10; /* id 0 to 3 used by STD_SECTION. */
+unsigned int _bfd_section_id = 0x10; /* id 0 to 3 used by STD_SECTION. */
/* Initializes a new section. NEWSECT->NAME is already set. */
static asection *
bfd_section_init (bfd *abfd, asection *newsect)
{
- newsect->id = section_id;
+ newsect->id = _bfd_section_id;
newsect->index = abfd->section_count;
newsect->owner = abfd;
if (! BFD_SEND (abfd, _new_section_hook, (abfd, newsect)))
return NULL;
- section_id++;
+ _bfd_section_id++;
abfd->section_count++;
bfd_section_list_append (abfd, newsect);
return newsect;
struct section_hash_entry *sh;
asection *newsect;
- if (abfd->output_has_begun)
+ if (abfd == NULL || name == NULL || abfd->output_has_begun)
{
bfd_set_error (bfd_error_invalid_operation);
return NULL;
return bfd_make_section_with_flags (abfd, name, 0);
}
-/*
-FUNCTION
- bfd_get_next_section_id
-
-SYNOPSIS
- int bfd_get_next_section_id (void);
-
-DESCRIPTION
- Returns the id that the next section created will have.
-*/
-
-int
-bfd_get_next_section_id (void)
-{
- return section_id;
-}
-
/*
FUNCTION
bfd_set_section_flags
DESCRIPTION
Sets the contents of the section @var{section} in BFD
- @var{abfd} to the data starting in memory at @var{data}. The
- data is written to the output section starting at offset
+ @var{abfd} to the data starting in memory at @var{location}.
+ The data is written to the output section starting at offset
@var{offset} for @var{count} octets.
- Normally <<TRUE>> is returned, else <<FALSE>>. Possible error
- returns are:
+ Normally <<TRUE>> is returned, but <<FALSE>> is returned if
+ there was an error. Possible error returns are:
o <<bfd_error_no_contents>> -
The output section does not have the <<SEC_HAS_CONTENTS>>
attribute, so nothing can be written to it.
- o and some more too
+ o <<bfd_error_bad_value>> -
+ The section is unable to contain all of the data.
+ o <<bfd_error_invalid_operation>> -
+ The BFD is not writeable.
+ o and some more too.
This routine is front end to the back end function
<<_bfd_set_section_contents>>.
Not enough memory exists to create private data for @var{osec}.
.#define bfd_copy_private_section_data(ibfd, isection, obfd, osection) \
-. BFD_SEND (obfd, _bfd_copy_private_section_data, \
-. (ibfd, isection, obfd, osection))
+. BFD_SEND (obfd, _bfd_copy_private_section_data, \
+. (ibfd, isection, obfd, osection))
*/
/*
{
return TRUE;
}
+
+bfd_boolean
+_bfd_nowrite_set_section_contents (bfd *abfd,
+ sec_ptr section ATTRIBUTE_UNUSED,
+ const void *location ATTRIBUTE_UNUSED,
+ file_ptr offset ATTRIBUTE_UNUSED,
+ bfd_size_type count ATTRIBUTE_UNUSED)
+{
+ return _bfd_bool_bfd_false_error (abfd);
+}
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