* targets.c: Add a vector of matching format names.

* format.c (bfd_matching_formats): New function to return it.
	(bfd_check_format): Set it.
	* bfd-in2.h: Regenerated.
This commit is contained in:
David MacKenzie 1994-01-22 04:28:17 +00:00
parent 0f8f509c6a
commit 3b31740cb2
4 changed files with 57 additions and 29 deletions

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@ -1,5 +1,10 @@
Fri Jan 21 16:25:35 1994 David J. Mackenzie (djm@thepub.cygnus.com)
* targets.c: Add a vector of matching format names.
* format.c (bfd_matching_formats): New function to return it.
(bfd_check_format): Set it.
* bfd-in2.h: Regenerated.
* bfd-in.h: Remove decls of bfd_ec type and error printing functions.
Remove decl of type symclass; wasn't used.
* bfd.c: Document error handling, including code fragments

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@ -2057,6 +2057,9 @@ bfd_target_list PARAMS ((void));
boolean
bfd_check_format PARAMS ((bfd *abfd, bfd_format format));
char **
bfd_matching_formats PARAMS (());
boolean
bfd_set_format PARAMS ((bfd *abfd, bfd_format format));

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@ -20,7 +20,7 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
/*
SECTION
File Formats
File formats
A format is a BFD concept of high level file contents type. The
formats supported by BFD are:
@ -44,9 +44,8 @@ SECTION
#include "sysdep.h"
#include "libbfd.h"
extern bfd_target *target_vector[];
extern bfd_target *default_vector[];
/* IMPORT from targets.c. */
extern char *matching_vector[];
/*
FUNCTION
@ -71,18 +70,18 @@ DESCRIPTION
The function returns <<true>> on success, otherwise <<false>>
with one of the following error codes:
o invalid_operation -
o <<invalid_operation>> -
if <<format>> is not one of <<bfd_object>>, <<bfd_archive>> or
<<bfd_core>>.
o system_call_error -
o <<system_call_error>> -
if an error occured during a read - even some file mismatches
can cause system_call_errors.
o file_not_recognised -
o <<file_not_recognised>> -
none of the backends recognised the file format.
o file_ambiguously_recognized -
o <<file_ambiguously_recognized>> -
more than one backend recognised the file format.
*/
@ -111,6 +110,7 @@ DEFUN(bfd_check_format,(abfd, format),
save_targ = abfd->xvec;
match_count = 0;
matching_vector[0] = NULL;
right_targ = 0;
@ -141,13 +141,16 @@ DEFUN(bfd_check_format,(abfd, format),
temp = BFD_SEND_FMT (abfd, _bfd_check_format, (abfd));
if (temp) { /* This format checks out as ok! */
right_targ = temp;
match_count++;
matching_vector[match_count++] = temp->name;
matching_vector[match_count] = NULL;
/* If this is the default target, accept it, even if other targets
might match. People who want those other targets have to set
the GNUTARGET variable. */
if (temp == default_vector[0])
{
match_count = 1;
matching_vector[0] = temp->name;
matching_vector[1] = NULL;
break;
}
#ifdef GNU960
@ -178,6 +181,25 @@ DEFUN(bfd_check_format,(abfd, format),
return false;
}
/*
FUNCTION
bfd_matching_formats
SYNOPSIS
char **bfd_matching_formats();
DESCRIPTION
If a call to <<bfd_check_format>> returns
<<file_ambiguously_recognized>>, you can call this function
afterward to return a NULL-terminated list of the names of
the formats that matched.
Then you can choose one and try again. */
char **
bfd_matching_formats ()
{
return &matching_vector[0];
}
/*
FUNCTION

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@ -185,26 +185,26 @@ Entries for byte swapping for data. These are different from the other
entry points, since they don't take a BFD asthe first argument.
Certain other handlers could do the same.
. bfd_vma (*bfd_getx64) PARAMS ((bfd_byte *));
. bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((bfd_byte *));
. bfd_vma (*bfd_getx64) PARAMS ((const bfd_byte *));
. bfd_signed_vma (*bfd_getx_signed_64) PARAMS ((const bfd_byte *));
. void (*bfd_putx64) PARAMS ((bfd_vma, bfd_byte *));
. bfd_vma (*bfd_getx32) PARAMS ((bfd_byte *));
. bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((bfd_byte *));
. bfd_vma (*bfd_getx32) PARAMS ((const bfd_byte *));
. bfd_signed_vma (*bfd_getx_signed_32) PARAMS ((const bfd_byte *));
. void (*bfd_putx32) PARAMS ((bfd_vma, bfd_byte *));
. bfd_vma (*bfd_getx16) PARAMS ((bfd_byte *));
. bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((bfd_byte *));
. bfd_vma (*bfd_getx16) PARAMS ((const bfd_byte *));
. bfd_signed_vma (*bfd_getx_signed_16) PARAMS ((const bfd_byte *));
. void (*bfd_putx16) PARAMS ((bfd_vma, bfd_byte *));
Byte swapping for the headers
. bfd_vma (*bfd_h_getx64) PARAMS ((bfd_byte *));
. bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((bfd_byte *));
. bfd_vma (*bfd_h_getx64) PARAMS ((const bfd_byte *));
. bfd_signed_vma (*bfd_h_getx_signed_64) PARAMS ((const bfd_byte *));
. void (*bfd_h_putx64) PARAMS ((bfd_vma, bfd_byte *));
. bfd_vma (*bfd_h_getx32) PARAMS ((bfd_byte *));
. bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((bfd_byte *));
. bfd_vma (*bfd_h_getx32) PARAMS ((const bfd_byte *));
. bfd_signed_vma (*bfd_h_getx_signed_32) PARAMS ((const bfd_byte *));
. void (*bfd_h_putx32) PARAMS ((bfd_vma, bfd_byte *));
. bfd_vma (*bfd_h_getx16) PARAMS ((bfd_byte *));
. bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((bfd_byte *));
. bfd_vma (*bfd_h_getx16) PARAMS ((const bfd_byte *));
. bfd_signed_vma (*bfd_h_getx_signed_16) PARAMS ((const bfd_byte *));
. void (*bfd_h_putx16) PARAMS ((bfd_vma, bfd_byte *));
Format dependent routines: these are vectors of entry points
@ -386,13 +386,9 @@ extern bfd_target m68klynx_aout_vec;
extern bfd_target m68klynx_coff_vec;
extern bfd_target m88kbcs_vec;
extern bfd_target newsos3_vec;
extern bfd_target nlm32_big_generic_vec;
extern bfd_target nlm32_i386_vec;
extern bfd_target nlm32_sparc_vec;
extern bfd_target nlm32_alpha_vec;
extern bfd_target nlm32_little_generic_vec;
extern bfd_target nlm64_big_generic_vec;
extern bfd_target nlm64_little_generic_vec;
extern bfd_target oasys_vec;
extern bfd_target rs6000coff_vec;
extern bfd_target shcoff_vec;
@ -509,12 +505,10 @@ bfd_target *target_vector[] = {
&m68klynx_coff_vec,
&m88kbcs_vec,
&newsos3_vec,
&nlm32_big_generic_vec,
&nlm32_i386_vec,
&nlm32_sparc_vec,
#ifdef BFD64
&nlm64_big_generic_vec,
&nlm64_little_generic_vec,
&nlm32_alpha_vec,
#endif
#if 0
/* We have no oasys tools anymore, so we can't test any of this
@ -579,7 +573,11 @@ bfd_target *default_vector[] = {
NULL
};
/* When there is an ambiguous match, bfd_check_format puts the names
of the matching targets in this array.
It is declared here so we can give it the same number of entries
(+ a terminating NULL) as the number of possible targets. */
char *matching_vector[sizeof(target_vector)/sizeof(*target_vector) + 1];
/*