/* linker.c -- BFD linker routines
- Copyright (C) 1993-2017 Free Software Foundation, Inc.
+ Copyright (C) 1993-2018 Free Software Foundation, Inc.
Written by Steve Chamberlain and Ian Lance Taylor, Cygnus Support
This file is part of BFD, the Binary File Descriptor library.
if (entry == NULL)
{
entry = (struct bfd_hash_entry *)
- bfd_hash_allocate (table, sizeof (struct bfd_link_hash_entry));
+ bfd_hash_allocate (table, sizeof (struct bfd_link_hash_entry));
if (entry == NULL)
return entry;
}
struct bfd_link_hash_entry *h;
/* This symbol is being wrapped. We want to replace all
- references to SYM with references to __wrap_SYM. */
+ references to SYM with references to __wrap_SYM. */
amt = strlen (l) + sizeof WRAP + 1;
n = (char *) bfd_malloc (amt);
struct bfd_link_hash_entry *h;
/* This is a reference to __real_SYM, where SYM is being
- wrapped. We want to replace all references to __real_SYM
- with references to SYM. */
+ wrapped. We want to replace all references to __real_SYM
+ with references to SYM. */
amt = strlen (l + sizeof REAL - 1) + 2;
n = (char *) bfd_malloc (amt);
/* Traverse a generic link hash table. Differs from bfd_hash_traverse
in the treatment of warning symbols. When warning symbols are
created they replace the real symbol, so you don't get to see the
- real symbol in a bfd_hash_travere. This traversal calls func with
+ real symbol in a bfd_hash_traverse. This traversal calls func with
the real symbol. */
void
if (symsize < 0)
return FALSE;
bfd_get_outsymbols (abfd) = (struct bfd_symbol **) bfd_alloc (abfd,
- symsize);
+ symsize);
if (bfd_get_outsymbols (abfd) == NULL && symsize != 0)
return FALSE;
symcount = bfd_canonicalize_symtab (abfd, bfd_get_outsymbols (abfd));
h = (struct generic_link_hash_entry *) bh;
/* If this is a constructor symbol, and the linker didn't do
- anything with it, then we want to just pass the symbol
- through to the output file. This will happen when
- linking with -r. */
+ anything with it, then we want to just pass the symbol
+ through to the output file. This will happen when
+ linking with -r. */
if ((p->flags & BSF_CONSTRUCTOR) != 0
&& (h == NULL || h->root.type == bfd_link_hash_new))
{
static const enum link_action link_action[8][8] =
{
/* current\prev new undef undefw def defw com indr warn */
- /* UNDEF_ROW */ {UND, NOACT, UND, REF, REF, NOACT, REFC, WARNC },
+ /* UNDEF_ROW */ {UND, NOACT, UND, REF, REF, NOACT, REFC, WARNC },
/* UNDEFW_ROW */ {WEAK, NOACT, NOACT, REF, REF, NOACT, REFC, WARNC },
- /* DEF_ROW */ {DEF, DEF, DEF, MDEF, DEF, CDEF, MDEF, CYCLE },
- /* DEFW_ROW */ {DEFW, DEFW, DEFW, NOACT, NOACT, NOACT, NOACT, CYCLE },
+ /* DEF_ROW */ {DEF, DEF, DEF, MDEF, DEF, CDEF, MDEF, CYCLE },
+ /* DEFW_ROW */ {DEFW, DEFW, DEFW, NOACT, NOACT, NOACT, NOACT, CYCLE },
/* COMMON_ROW */ {COM, COM, COM, CREF, COM, BIG, REFC, WARNC },
/* INDR_ROW */ {IND, IND, IND, MDEF, IND, CIND, MIND, CYCLE },
/* WARN_ROW */ {MWARN, WARN, WARN, WARN, WARN, WARN, WARN, NOACT },
{
row = COMMON_ROW;
if (!bfd_link_relocatable (info)
- && strcmp (name, "__gnu_lto_slim") == 0)
+ && name[0] == '_'
+ && name[1] == '_'
+ && strcmp (name + (name[2] == '_'), "__gnu_lto_slim") == 0)
_bfd_error_handler
(_("%B: plugin needed to handle lto object"), abfd);
}
do
{
enum link_action action;
+ int prev;
+ prev = h->type;
+ /* Treat symbols defined by early linker script pass as undefined. */
+ if (h->ldscript_def)
+ prev = bfd_link_hash_undefined;
cycle = FALSE;
- action = link_action[(int) row][(int) h->type];
+ action = link_action[(int) row][prev];
switch (action)
{
case FAIL:
h->u.def.section = section;
h->u.def.value = value;
h->linker_def = 0;
+ h->ldscript_def = 0;
/* If we have been asked to, we act like collect2 and
identify all functions that might be global
&& s[CONS_PREFIX_LEN] == s[CONS_PREFIX_LEN + 2])
{
/* If this is a definition of a symbol which
- was previously weakly defined, we are in
- trouble. We have already added a
- constructor entry for the weak defined
- symbol, and now we are trying to add one
- for the new symbol. Fortunately, this case
- should never arise in practice. */
+ was previously weakly defined, we are in
+ trouble. We have already added a
+ constructor entry for the weak defined
+ symbol, and now we are trying to add one
+ for the new symbol. Fortunately, this case
+ should never arise in practice. */
if (oldtype == bfd_link_hash_defweak)
abort ();
h->u.c.size = value;
/* Select a default alignment based on the size. This may
- be overridden by the caller. */
+ be overridden by the caller. */
{
unsigned int power;
}
/* The section of a common symbol is only used if the common
- symbol is actually allocated. It basically provides a
- hook for the linker script to decide which output section
- the common symbols should be put in. In most cases, the
- section of a common symbol will be bfd_com_section_ptr,
- the code here will choose a common symbol section named
- "COMMON", and the linker script will contain *(COMMON) in
- the appropriate place. A few targets use separate common
- sections for small symbols, and they require special
- handling. */
+ symbol is actually allocated. It basically provides a
+ hook for the linker script to decide which output section
+ the common symbols should be put in. In most cases, the
+ section of a common symbol will be bfd_com_section_ptr,
+ the code here will choose a common symbol section named
+ "COMMON", and the linker script will contain *(COMMON) in
+ the appropriate place. A few targets use separate common
+ sections for small symbols, and they require special
+ handling. */
if (section == bfd_com_section_ptr)
{
h->u.c.p->section = bfd_make_section_old_way (abfd, "COMMON");
else
h->u.c.p->section = section;
h->linker_def = 0;
+ h->ldscript_def = 0;
break;
case REF:
else if ((sym->flags & BSF_CONSTRUCTOR) != 0)
{
/* This case normally means that the main linker code
- deliberately ignored this constructor symbol. We
- should just pass it through. This will screw up if
- the constructor symbol is from a different,
- non-generic, object file format, but the case will
- only arise when linking with -r, which will probably
- fail anyhow, since there will be no way to represent
- the relocs in the output format being used. */
+ deliberately ignored this constructor symbol. We
+ should just pass it through. This will screw up if
+ the constructor symbol is from a different,
+ non-generic, object file format, but the case will
+ only arise when linking with -r, which will probably
+ fail anyhow, since there will be no way to represent
+ the relocs in the output format being used. */
h = NULL;
}
else if (bfd_is_und_section (bfd_get_section (sym)))
break;
case bfd_link_hash_new:
/* This can happen when a constructor symbol is seen but we are
- not building constructors. */
+ not building constructors. */
if (sym->section != NULL)
{
BFD_ASSERT ((sym->flags & BSF_CONSTRUCTOR) != 0);
bfd_link_split_section
SYNOPSIS
- bfd_boolean bfd_link_split_section (bfd *abfd, asection *sec);
+ bfd_boolean bfd_link_split_section (bfd *abfd, asection *sec);
DESCRIPTION
Return nonzero if @var{sec} should be split during a
reloceatable or final link.
.#define bfd_link_split_section(abfd, sec) \
-. BFD_SEND (abfd, _bfd_link_split_section, (abfd, sec))
+. BFD_SEND (abfd, _bfd_link_split_section, (abfd, sec))
.
*/
bfd_section_already_linked
SYNOPSIS
- bfd_boolean bfd_section_already_linked (bfd *abfd,
+ bfd_boolean bfd_section_already_linked (bfd *abfd,
asection *sec,
struct bfd_link_info *info);
or final link. Return TRUE if it has.
.#define bfd_section_already_linked(abfd, sec, info) \
-. BFD_SEND (abfd, _section_already_linked, (abfd, sec, info))
+. BFD_SEND (abfd, _section_already_linked, (abfd, sec, info))
.
*/
Return TRUE on success and FALSE on failure.
.#define bfd_define_common_symbol(output_bfd, info, h) \
-. BFD_SEND (output_bfd, _bfd_define_common_symbol, (output_bfd, info, h))
+. BFD_SEND (output_bfd, _bfd_define_common_symbol, (output_bfd, info, h))
.
*/
Return the symbol or NULL if no such undefined symbol exists.
.#define bfd_define_start_stop(output_bfd, info, symbol, sec) \
-. BFD_SEND (output_bfd, _bfd_define_start_stop, (info, symbol, sec))
+. BFD_SEND (output_bfd, _bfd_define_start_stop, (info, symbol, sec))
.
*/
(bfd *abfd, struct bfd_link_info *info);
DESCRIPTION
- Stub function for targets that do not implement reloc checking.
+ Stub function for targets that do not implement reloc checking.
Return TRUE.
This is an internal function. It should not be called from
outside the BFD library.
Not enough memory exists to create private data for @var{obfd}.
.#define bfd_merge_private_bfd_data(ibfd, info) \
-. BFD_SEND ((info)->output_bfd, _bfd_merge_private_bfd_data, \
-. (ibfd, info))
+. BFD_SEND ((info)->output_bfd, _bfd_merge_private_bfd_data, \
+. (ibfd, info))
*/
/*
projects / deliverable / binutils-gdb.git / blobdiff