/* 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, 2008, 2009, 2010, 2011,
- 2012
- Free Software Foundation, Inc.
+ Copyright (C) 1990-2017 Free Software Foundation, Inc.
Written by Cygnus Support.
This file is part of BFD, the Binary File Descriptor library.
. const char *name;
.
. {* A unique sequence number. *}
-. int id;
+. unsigned int id;
.
. {* Which section in the bfd; 0..n-1 as sections are created in a bfd. *}
-. int index;
+. unsigned int index;
.
. {* The next section in the list belonging to the BFD, or NULL. *}
. struct bfd_section *next;
. executables or shared objects. This is for COFF only. *}
.#define SEC_COFF_SHARED 0x8000000
.
+. {* This section should be compressed. This is for ELF linker
+. internal use only. *}
+.#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,
. TMS320C54X only. *}
.#define SEC_TIC54X_BLOCK 0x10000000
.
+. {* This section should be renamed. This is for ELF linker
+. internal use only. *}
+.#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
.
+. {* This section contains vliw code. This is for Toshiba MeP only. *}
+.#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
.
+. {* Indicate that section has the purecode flag set. *}
+.#define SEC_ELF_PURECODE 0x80000000
+.
. {* End of section flags. *}
.
. {* Some internal packed boolean fields. *}
.#define SEC_INFO_TYPE_MERGE 2
.#define SEC_INFO_TYPE_EH_FRAME 3
.#define SEC_INFO_TYPE_JUST_SYMS 4
+.#define SEC_INFO_TYPE_TARGET 5
+.#define SEC_INFO_TYPE_EH_FRAME_ENTRY 6
.
. {* Nonzero if this section uses RELA relocations, rather than REL. *}
. unsigned int use_rela_p:1;
. information. *}
. bfd_vma lma;
.
-. {* The size of the section in octets, as it will be output.
+. {* The size of the section in *octets*, as it will be output.
. Contains a value even if the section has no contents (e.g., the
. size of <<.bss>>). *}
. bfd_size_type size;
.} asection;
.
.{* Relax table contains information about instructions which can
-. be removed by relaxation -- replacing a long address with a
+. be removed by relaxation -- replacing a long address with a
. short address. *}
.struct relax_table {
. {* Address where bytes may be deleted. *}
. bfd_vma addr;
-.
+.
. {* Number of bytes to be deleted. *}
. int size;
.};
.
+.{* Note: the following are provided as inline functions rather than macros
+. because not all callers use the return value. A macro implementation
+. 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)
+.{
+. ptr->userdata = val;
+. return TRUE;
+.}
+.
+.static inline bfd_boolean
+.bfd_set_section_vma (bfd * abfd ATTRIBUTE_UNUSED, asection * ptr, bfd_vma val)
+.{
+. ptr->vma = ptr->lma = val;
+. ptr->user_set_vma = TRUE;
+. return TRUE;
+.}
+.
+.static inline bfd_boolean
+.bfd_set_section_alignment (bfd * abfd ATTRIBUTE_UNUSED, asection * ptr, unsigned int val)
+.{
+. ptr->alignment_power = val;
+. return TRUE;
+.}
+.
.{* These sections are global, and are managed by BFD. The application
. and target back end are not permitted to change the values in
. these sections. *}
-.extern asection std_section[4];
+.extern asection _bfd_std_section[4];
.
.#define BFD_ABS_SECTION_NAME "*ABS*"
.#define BFD_UND_SECTION_NAME "*UND*"
.#define BFD_IND_SECTION_NAME "*IND*"
.
.{* Pointer to the common section. *}
-.#define bfd_com_section_ptr (&std_section[0])
+.#define bfd_com_section_ptr (&_bfd_std_section[0])
.{* Pointer to the undefined section. *}
-.#define bfd_und_section_ptr (&std_section[1])
+.#define bfd_und_section_ptr (&_bfd_std_section[1])
.{* Pointer to the absolute section. *}
-.#define bfd_abs_section_ptr (&std_section[2])
+.#define bfd_abs_section_ptr (&_bfd_std_section[2])
.{* Pointer to the indirect section. *}
-.#define bfd_ind_section_ptr (&std_section[3])
+.#define bfd_ind_section_ptr (&_bfd_std_section[3])
.
.#define bfd_is_und_section(sec) ((sec) == bfd_und_section_ptr)
.#define bfd_is_abs_section(sec) ((sec) == bfd_abs_section_ptr)
.#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(std_section[IDX], FLAGS, &global_syms[IDX], NAME, IDX)
+ BFD_FAKE_SECTION(_bfd_std_section[IDX], &global_syms[IDX], NAME, IDX, FLAGS)
-asection std_section[] = {
+asection _bfd_std_section[] = {
STD_SECTION (BFD_COM_SECTION_NAME, 0, SEC_IS_COMMON),
STD_SECTION (BFD_UND_SECTION_NAME, 1, 0),
STD_SECTION (BFD_ABS_SECTION_NAME, 2, 0),
return TRUE;
}
+static unsigned int 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)
{
- static int section_id = 0x10; /* id 0 to 3 used by STD_SECTION. */
-
newsect->id = section_id;
newsect->index = abfd->section_count;
newsect->owner = abfd;
abfd->section_count = 0;
memset (abfd->section_htab.table, 0,
abfd->section_htab.size * sizeof (struct bfd_hash_entry *));
+ abfd->section_htab.count = 0;
}
/*
bfd_get_next_section_by_name
SYNOPSIS
- asection *bfd_get_next_section_by_name (asection *sec);
+ asection *bfd_get_next_section_by_name (bfd *ibfd, asection *sec);
DESCRIPTION
Given @var{sec} is a section returned by @code{bfd_get_section_by_name},
return the next most recently created section attached to the same
- BFD with the same name. Return NULL if no such section exists.
+ BFD with the same name, or if no such section exists in the same BFD and
+ IBFD is non-NULL, the next section with the same name in any input
+ BFD following IBFD. Return NULL on finding no section.
*/
asection *
-bfd_get_next_section_by_name (asection *sec)
+bfd_get_next_section_by_name (bfd *ibfd, asection *sec)
{
struct section_hash_entry *sh;
const char *name;
&& strcmp (sh->root.string, name) == 0)
return &sh->section;
+ if (ibfd != NULL)
+ {
+ while ((ibfd = ibfd->link.next) != NULL)
+ {
+ asection *s = bfd_get_section_by_name (ibfd, name);
+ if (s != NULL)
+ return s;
+ }
+ }
+
return NULL;
}
asection *sec = bfd_get_section_by_name (abfd, name);
while (sec != NULL && (sec->flags & SEC_LINKER_CREATED) == 0)
- sec = bfd_get_next_section_by_name (sec);
+ sec = bfd_get_next_section_by_name (NULL, sec);
return sec;
}
return NULL;
hash = sh->root.hash;
- do
- {
- if ((*operation) (abfd, &sh->section, user_storage))
- return &sh->section;
- sh = (struct section_hash_entry *) sh->root.next;
- }
- while (sh != NULL && sh->root.hash == hash
- && strcmp (sh->root.string, name) == 0);
+ for (; sh != NULL; sh = (struct section_hash_entry *) sh->root.next)
+ if (sh->root.hash == hash
+ && strcmp (sh->root.string, name) == 0
+ && (*operation) (abfd, &sh->section, user_storage))
+ return &sh->section;
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
This is the preferred method for iterating over sections; an
alternative would be to use a loop:
-| section *p;
+| asection *p;
| for (p = abfd->sections; p != NULL; p = p->next)
| func (abfd, p, ...)
bfd_set_error (bfd_error_invalid_operation);
return FALSE;
}
-
- memcpy (location, section->contents + offset, (size_t) count);
+
+ memmove (location, section->contents + offset, (size_t) count);
return TRUE;
}
projects / deliverable / binutils-gdb.git / blobdiff