* bfd.c (bfd_error_type): Add bfd_error_on_input.

[binutils-gdb.git] / bfd / bfd.c

diff --git a/bfd/bfd.c b/bfd/bfd.c
index 7f59adb13024bde2dd86b96490e187f97f2c9caa..b9701416a6094836b398b93f323076dd891633d2 100644 (file)
--- a/bfd/bfd.c
+++ b/bfd/bfd.c
@@ -271,6 +271,7 @@ CODE_FRAGMENT
 .  bfd_error_bad_value,
 .  bfd_error_file_truncated,
 .  bfd_error_file_too_big,
+.  bfd_error_on_input,
 .  bfd_error_invalid_error_code
 .}
 .bfd_error_type;
@@ -278,6 +279,8 @@ CODE_FRAGMENT
 */
 
 static bfd_error_type bfd_error = bfd_error_no_error;
+static bfd *input_bfd = NULL;
+static bfd_error_type input_error = bfd_error_no_error;
 
 const char *const bfd_errmsgs[] =
 {
@@ -300,6 +303,7 @@ const char *const bfd_errmsgs[] =
   N_("Bad value"),
   N_("File truncated"),
   N_("File too big"),
+  N_("Error reading %s: %s"),
   N_("#<Invalid error code>")
 };
 
@@ -325,16 +329,32 @@ FUNCTION
        bfd_set_error
 
 SYNOPSIS
-       void bfd_set_error (bfd_error_type error_tag);
+       void bfd_set_error (bfd_error_type error_tag, ...);
 
 DESCRIPTION
        Set the BFD error condition to be @var{error_tag}.
+       If @var{error_tag} is bfd_error_on_input, then this function
+       takes two more parameters, the input bfd where the error
+       occurred, and the bfd_error_type error.
 */
 
 void
-bfd_set_error (bfd_error_type error_tag)
+bfd_set_error (bfd_error_type error_tag, ...)
 {
   bfd_error = error_tag;
+  if (error_tag == bfd_error_on_input)
+    {
+      /* This is an error that occurred during bfd_close when
+        writing an archive, but on one of the input files.  */
+      va_list ap;
+
+      va_start (ap, error_tag);
+      input_bfd = va_arg (ap, bfd *);
+      input_error = va_arg (ap, int);
+      if (input_error >= bfd_error_on_input)
+       abort ();
+      va_end (ap);
+    }
 }
 
 /*
@@ -355,6 +375,19 @@ bfd_errmsg (bfd_error_type error_tag)
 #ifndef errno
   extern int errno;
 #endif
+  if (error_tag == bfd_error_on_input)
+    {
+      char *buf;
+      const char *msg = bfd_errmsg (input_error);
+
+      if (asprintf (&buf, _(bfd_errmsgs [error_tag]), input_bfd->filename, msg)
+         != -1)
+       return buf;
+
+      /* Ick, what to do on out of memory?  */
+      return msg;
+    }
+
   if (error_tag == bfd_error_system_call)
     return xstrerror (errno);
 
@@ -382,16 +415,10 @@ DESCRIPTION
 void
 bfd_perror (const char *message)
 {
-  if (bfd_get_error () == bfd_error_system_call)
-    /* Must be a system error then.  */
-    perror ((char *) message);
+  if (message == NULL || *message == '\0')
+    fprintf (stderr, "%s\n", bfd_errmsg (bfd_get_error ()));
   else
-    {
-      if (message == NULL || *message == '\0')
-       fprintf (stderr, "%s\n", bfd_errmsg (bfd_get_error ()));
-      else
-       fprintf (stderr, "%s: %s\n", message, bfd_errmsg (bfd_get_error ()));
-    }
+    fprintf (stderr, "%s: %s\n", message, bfd_errmsg (bfd_get_error ()));
 }
 
 /*