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Turn a weak symbol into an external symbol for a non-shared, non-relocatable

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Nick Clifton 2000-07-03 18:45:18 +00:00
parent 289c596cac
commit e42026815e
2 changed files with 36 additions and 15 deletions
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12
bfd/ChangeLog
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@ -1,3 +1,15 @@
2000-07-03 Mark Elbrecht <snowball3@bigfoot.com>
* cofflink.c (_bfd_coff_write_global_sym): Turn a weak symbol into
an external symbol for a non-shared, non-relocatable link.
2000-07-03 Nick Clifton <nickc@redhat.com>
(IS_EXTERNAL): New macro: Return true if the symbol is an external
symbol.
(IS_WEAK_EXTERNAL): New macro: Return true if the symbol is a weak
external symbol.
2000-07-03 Kazu Hirata <kazu@hxi.com>
* reloc16.c: Fix formatting.

39
bfd/cofflink.c
View File

@ -40,6 +40,15 @@ static int process_embedded_commands
PARAMS ((bfd *, struct bfd_link_info *, bfd *));
static void mark_relocs PARAMS ((struct coff_final_link_info *, bfd *));
/* Return true if SYM is a weak, external symbol. */
#define IS_WEAK_EXTERNAL(abfd, sym) \
((sym).n_sclass == C_WEAKEXT \
|| (obj_pe (abfd) && (sym).n_sclass == C_NT_WEAK))
/* Return true if SYM is an external symbol. */
#define IS_EXTERNAL(abfd, sym) \
((sym).n_sclass == C_EXT || IS_WEAK_EXTERNAL (abfd, sym))
/* Define macros so that the ISFCN, et. al., macros work correctly.
These macros are defined in include/coff/internal.h in terms of
N_TMASK, etc. These definitions require a user to define local
@ -395,8 +404,7 @@ coff_link_add_symbols (abfd, info)
break;
}
if (sym.n_sclass == C_WEAKEXT
|| (obj_pe (abfd) && sym.n_sclass == C_NT_WEAK))
if (IS_WEAK_EXTERNAL (abfd, sym))
flags = BSF_WEAK;
addit = true;
@ -1833,12 +1841,8 @@ _bfd_coff_link_input_bfd (finfo, input_bfd)
}
/* If doing task linking, convert normal global function symbols to
static functions. */
if (finfo->info->task_link
&& (isym.n_sclass == C_EXT
|| isym.n_sclass == C_WEAKEXT
|| (obj_pe (input_bfd) && isym.n_sclass == C_NT_WEAK)))
static functions. */
if (finfo->info->task_link && IS_EXTERNAL (input_bfd, isym))
isym.n_sclass = C_STAT;
/* Output the symbol. */
@ -2548,18 +2552,23 @@ _bfd_coff_write_global_sym (h, data)
/* If doing task linking and this is the pass where we convert
defined globals to statics, then do that conversion now. If the
symbol is not being converted, just ignore it and it will be
output during a later pass. */
output during a later pass. */
if (finfo->global_to_static)
{
if (isym.n_sclass != C_EXT
&& isym.n_sclass != C_WEAKEXT
&& (! obj_pe (output_bfd) || isym.n_sclass != C_NT_WEAK))
{
return true;
}
if (! IS_EXTERNAL (output_bfd, isym))
return true;
isym.n_sclass = C_STAT;
}
/* When a weak symbol is not overriden by a strong one,
turn it into an external symbol when not building a
shared or relocateable object. */
if (! finfo->info->shared
&& ! finfo->info->relocateable
&& IS_WEAK_EXTERNAL (finfo->output_bfd, isym))
isym.n_sclass = C_EXT;
isym.n_numaux = h->numaux;
bfd_coff_swap_sym_out (output_bfd, (PTR) &isym, (PTR) finfo->outsyms);