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* format.c (bfd_check_format_matches): New function.
(bfd_check_format): Call it. (bfd_matching_formats): Function removed. * targets.c: Replace the vector added on Jan 21 with a count of entries in default_vector. * bfd-in2.h: Regenerated.
This commit is contained in:
David MacKenzie
parent
db2e6adb5b
commit
aabda2da07
@ -1,3 +1,12 @@
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Mon Jan 24 14:41:23 1994 David J. Mackenzie (djm@thepub.cygnus.com)
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* format.c (bfd_check_format_matches): New function.
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(bfd_check_format): Call it.
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(bfd_matching_formats): Function removed.
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* targets.c: Replace the vector added on Jan 21 with a count of
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entries in default_vector.
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* bfd-in2.h: Regenerated.
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Mon Jan 24 12:38:54 1994 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
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* elf32-hppa.c (hppa_elf_gen_reloc_type): Typo (== for =).
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@ -2057,8 +2057,8 @@ bfd_target_list PARAMS ((void));
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boolean
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bfd_check_format PARAMS ((bfd *abfd, bfd_format format));
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char **
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bfd_matching_formats PARAMS (());
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boolean
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bfd_check_format_matches PARAMS ((bfd *abfd, bfd_format format, char ***matching));
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boolean
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bfd_set_format PARAMS ((bfd *abfd, bfd_format format));
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99
bfd/format.c
99
bfd/format.c
@ -45,7 +45,7 @@ SECTION
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#include "libbfd.h"
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/* IMPORT from targets.c. */
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extern char *matching_vector[];
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extern CONST size_t bfd_default_vector_entries;
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/*
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FUNCTION
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@ -83,15 +83,43 @@ DESCRIPTION
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o <<file_ambiguously_recognized>> -
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more than one backend recognised the file format.
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*/
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boolean
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DEFUN(bfd_check_format,(abfd, format),
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bfd *abfd AND
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bfd_format format)
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bfd_check_format (abfd, format)
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bfd *abfd;
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bfd_format format;
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{
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return bfd_check_format_matches (abfd, format, NULL);
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}
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/*
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FUNCTION
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bfd_check_format_matches
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SYNOPSIS
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boolean bfd_check_format_matches(bfd *abfd, bfd_format format, char ***matching);
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DESCRIPTION
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Like <<bfd_check_format>>, except when it returns false with
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<<bfd_errno>> set to <<file_ambiguously_recognized>>. In that
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case, if @var{matching} is not NULL, it will be filled in with
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a NULL-terminated list of the names of the formats that matched,
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allocated with <<malloc>>.
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Then the user may choose a format and try again.
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When done with the list that @var{matching} points to, the caller
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should free it.
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*/
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boolean
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bfd_check_format_matches (abfd, format, matching)
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bfd *abfd;
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bfd_format format;
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char ***matching;
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{
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bfd_target **target, *save_targ, *right_targ;
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char **matching_vector;
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int match_count;
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if (!bfd_read_p (abfd) ||
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@ -110,7 +138,13 @@ DEFUN(bfd_check_format,(abfd, format),
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save_targ = abfd->xvec;
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match_count = 0;
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if (matching)
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{
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*matching = matching_vector =
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bfd_xmalloc_by_size_t (sizeof (char *) *
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(bfd_default_vector_entries + 1));
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matching_vector[0] = NULL;
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}
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right_targ = 0;
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@ -125,6 +159,8 @@ DEFUN(bfd_check_format,(abfd, format),
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right_targ = BFD_SEND_FMT (abfd, _bfd_check_format, (abfd));
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if (right_targ) {
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abfd->xvec = right_targ; /* Set the target as returned */
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if (matching)
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free (matching_vector);
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return true; /* File position has moved, BTW */
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}
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}
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@ -141,16 +177,23 @@ DEFUN(bfd_check_format,(abfd, format),
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temp = BFD_SEND_FMT (abfd, _bfd_check_format, (abfd));
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if (temp) { /* This format checks out as ok! */
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right_targ = temp;
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matching_vector[match_count++] = temp->name;
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match_count++;
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if (matching)
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{
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matching_vector[match_count] = temp->name;
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matching_vector[match_count] = NULL;
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}
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/* If this is the default target, accept it, even if other targets
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might match. People who want those other targets have to set
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the GNUTARGET variable. */
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if (temp == default_vector[0])
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{
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match_count = 1;
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if (matching)
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{
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matching_vector[0] = temp->name;
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matching_vector[1] = NULL;
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}
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break;
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}
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#ifdef GNU960
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@ -165,42 +208,32 @@ DEFUN(bfd_check_format,(abfd, format),
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} else if (bfd_error != wrong_format) {
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abfd->xvec = save_targ;
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abfd->format = bfd_unknown;
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if (matching && bfd_error != file_ambiguously_recognized)
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free (matching_vector);
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return false;
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}
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}
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if (match_count == 1) {
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abfd->xvec = right_targ; /* Change BFD's target permanently */
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if (matching)
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free (matching_vector);
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return true; /* File position has moved, BTW */
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}
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abfd->xvec = save_targ; /* Restore original target type */
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abfd->format = bfd_unknown; /* Restore original format */
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bfd_error = ((match_count == 0) ? file_not_recognized :
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file_ambiguously_recognized);
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if (match_count == 0)
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{
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bfd_error = file_not_recognized;
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if (matching)
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free (matching_vector);
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}
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else
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bfd_error = file_ambiguously_recognized;
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return false;
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}
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/*
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FUNCTION
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bfd_matching_formats
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SYNOPSIS
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char **bfd_matching_formats();
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DESCRIPTION
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If a call to <<bfd_check_format>> returns
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<<file_ambiguously_recognized>>, you can call this function
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afterward to return a NULL-terminated list of the names of
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the formats that matched.
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Then you can choose one and try again. */
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char **
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bfd_matching_formats ()
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{
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return &matching_vector[0];
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}
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/*
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FUNCTION
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bfd_set_format
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@ -217,9 +250,9 @@ DESCRIPTION
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*/
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boolean
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DEFUN(bfd_set_format,(abfd, format),
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bfd *abfd AND
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bfd_format format)
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bfd_set_format (abfd, format)
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bfd *abfd;
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bfd_format format;
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{
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if (bfd_read_p (abfd) ||
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@ -258,8 +291,8 @@ DESCRIPTION
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*/
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CONST char *
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DEFUN(bfd_format_string,(format),
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bfd_format format)
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bfd_format_string (format)
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bfd_format format;
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{
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if (((int)format <(int) bfd_unknown)
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|| ((int)format >=(int) bfd_type_end))
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@ -573,12 +573,10 @@ bfd_target *default_vector[] = {
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NULL
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};
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/* When there is an ambiguous match, bfd_check_format puts the names
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of the matching targets in this array.
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It is declared here so we can give it the same number of entries
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(+ a terminating NULL) as the number of possible targets. */
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char *matching_vector[sizeof(target_vector)/sizeof(*target_vector) + 1];
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/* When there is an ambiguous match, bfd_check_format_ambig puts the names
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of the matching targets in an array. This variable is the maximum
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number of entries that array could possibly need. */
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CONST size_t bfd_default_vector_entries = sizeof(target_vector)/sizeof(*target_vector);
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/*
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FUNCTION
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