Default gdb_bfd_open's fd parameter to -1

A following patch will add one more defaulted parameter.

gdb/ChangeLog:
2020-05-19  Pedro Alves  <palves@redhat.com>

	* gdb_bfd.h: (gdb_bfd_open): Default to 'fd' parameter to -1.
	Adjust all callers.

10 files changed, 19 insertions, 13 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index c439318..a03be43 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2020-05-19  Pedro Alves  <palves@redhat.com>
+
+	* gdb_bfd.h: (gdb_bfd_open): Default to 'fd' parameter to -1.
+	Adjust all callers.
+
 2020-05-19  Yoshinori Sato  <ysato@users.sourceforge.jp>
 
 	* h8300-tdep.c (h8300_is_argument_spill): Change how we check
diff --git a/gdb/build-id.c b/gdb/build-id.c
index 6e1f8b0..2f1afbd 100644
--- a/gdb/build-id.c
+++ b/gdb/build-id.c
@@ -94,7 +94,7 @@ build_id_to_debug_bfd_1 (const std::string &link, size_t build_id_len,
     }
 
   /* We expect to be silent on the non-existing files.  */
-  gdb_bfd_ref_ptr debug_bfd = gdb_bfd_open (filename.get (), gnutarget, -1);
+  gdb_bfd_ref_ptr debug_bfd = gdb_bfd_open (filename.get (), gnutarget);
 
   if (debug_bfd == NULL)
     {
diff --git a/gdb/compile/compile-object-load.c b/gdb/compile/compile-object-load.c
index 55a46a3..76a9418 100644
--- a/gdb/compile/compile-object-load.c
+++ b/gdb/compile/compile-object-load.c
@@ -604,7 +604,7 @@ compile_object_load (const compile_file_names &file_names,
   gdb::unique_xmalloc_ptr<char> filename
     (tilde_expand (file_names.object_file ()));
 
-  gdb_bfd_ref_ptr abfd (gdb_bfd_open (filename.get (), gnutarget, -1));
+  gdb_bfd_ref_ptr abfd (gdb_bfd_open (filename.get (), gnutarget));
   if (abfd == NULL)
     error (_("\"%s\": could not open as compiled module: %s"),
           filename.get (), bfd_errmsg (bfd_get_error ()));
diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c
index 719051b..0c6182b 100644
--- a/gdb/dwarf2/read.c
+++ b/gdb/dwarf2/read.c
@@ -2115,7 +2115,7 @@ dwarf2_get_dwz_file (struct dwarf2_per_objfile *dwarf2_per_objfile)
 
   /* First try the file name given in the section.  If that doesn't
      work, try to use the build-id instead.  */
-  gdb_bfd_ref_ptr dwz_bfd (gdb_bfd_open (filename, gnutarget, -1));
+  gdb_bfd_ref_ptr dwz_bfd (gdb_bfd_open (filename, gnutarget));
   if (dwz_bfd != NULL)
     {
       if (!build_id_verify (dwz_bfd.get (), buildid_len, buildid))
@@ -2138,7 +2138,7 @@ dwarf2_get_dwz_file (struct dwarf2_per_objfile *dwarf2_per_objfile)
       if (fd.get () >= 0)
 	{
 	  /* File successfully retrieved from server.  */
-	  dwz_bfd = gdb_bfd_open (alt_filename.get (), gnutarget, -1);
+	  dwz_bfd = gdb_bfd_open (alt_filename.get (), gnutarget);
 
 	  if (dwz_bfd == nullptr)
 	    warning (_("File \"%s\" from debuginfod cannot be opened as bfd"),
diff --git a/gdb/gdb_bfd.h b/gdb/gdb_bfd.h
index ce72f78..532520e 100644
--- a/gdb/gdb_bfd.h
+++ b/gdb/gdb_bfd.h
@@ -80,7 +80,8 @@ typedef gdb::ref_ptr<struct bfd, gdb_bfd_ref_policy> gdb_bfd_ref_ptr;
    bfd_get_filename will not be exactly NAME but rather NAME with
    TARGET_SYSROOT_PREFIX stripped.  */
 
-gdb_bfd_ref_ptr gdb_bfd_open (const char *name, const char *target, int fd);
+gdb_bfd_ref_ptr gdb_bfd_open (const char *name, const char *target,
+			      int fd = -1);
 
 /* Mark the CHILD BFD as being a member of PARENT.  Also, increment
    the reference count of CHILD.  Calling this function ensures that
diff --git a/gdb/machoread.c b/gdb/machoread.c
index 4655b67..fb4e205 100644
--- a/gdb/machoread.c
+++ b/gdb/machoread.c
@@ -639,7 +639,7 @@ macho_symfile_read_all_oso (std::vector<oso_el> *oso_vector_ptr,
 
 	  /* Open the archive and check the format.  */
 	  gdb_bfd_ref_ptr archive_bfd (gdb_bfd_open (archive_name.c_str (),
-						     gnutarget, -1));
+						     gnutarget));
 	  if (archive_bfd == NULL)
 	    {
 	      warning (_("Could not open OSO archive file \"%s\""),
@@ -705,7 +705,7 @@ macho_symfile_read_all_oso (std::vector<oso_el> *oso_vector_ptr,
 	}
       else
 	{
-	  gdb_bfd_ref_ptr abfd (gdb_bfd_open (oso->name, gnutarget, -1));
+	  gdb_bfd_ref_ptr abfd (gdb_bfd_open (oso->name, gnutarget));
 	  if (abfd == NULL)
             warning (_("`%s': can't open to read symbols: %s."), oso->name,
                      bfd_errmsg (bfd_get_error ()));
diff --git a/gdb/solib-darwin.c b/gdb/solib-darwin.c
index 03d91d1..e740a41 100644
--- a/gdb/solib-darwin.c
+++ b/gdb/solib-darwin.c
@@ -436,7 +436,7 @@ darwin_get_dyld_bfd ()
     return NULL;
 
   /* Create a bfd for the interpreter.  */
-  gdb_bfd_ref_ptr dyld_bfd (gdb_bfd_open (interp_name, gnutarget, -1));
+  gdb_bfd_ref_ptr dyld_bfd (gdb_bfd_open (interp_name, gnutarget));
   if (dyld_bfd != NULL)
     {
       gdb_bfd_ref_ptr sub
diff --git a/gdb/symfile.c b/gdb/symfile.c
index e6ec458..01e0726 100644
--- a/gdb/symfile.c
+++ b/gdb/symfile.c
@@ -1275,7 +1275,7 @@ separate_debug_file_exists (const std::string &name, unsigned long crc,
       gdb_flush (gdb_stdout);
     }
 
-  gdb_bfd_ref_ptr abfd (gdb_bfd_open (name.c_str (), gnutarget, -1));
+  gdb_bfd_ref_ptr abfd (gdb_bfd_open (name.c_str (), gnutarget));
 
   if (abfd == NULL)
     {
@@ -2039,7 +2039,7 @@ generic_load (const char *args, int from_tty)
     }
 
   /* Open the file for loading.  */
-  gdb_bfd_ref_ptr loadfile_bfd (gdb_bfd_open (filename.get (), gnutarget, -1));
+  gdb_bfd_ref_ptr loadfile_bfd (gdb_bfd_open (filename.get (), gnutarget));
   if (loadfile_bfd == NULL)
     perror_with_name (filename.get ());
 
@@ -2524,7 +2524,7 @@ reread_symbols (void)
 	    obfd_filename = bfd_get_filename (objfile->obfd);
 	    /* Open the new BFD before freeing the old one, so that
 	       the filename remains live.  */
-	    gdb_bfd_ref_ptr temp (gdb_bfd_open (obfd_filename, gnutarget, -1));
+	    gdb_bfd_ref_ptr temp (gdb_bfd_open (obfd_filename, gnutarget));
 	    objfile->obfd = temp.release ();
 	    if (objfile->obfd == NULL)
 	      error (_("Can't open %s to read symbols."), obfd_filename);
diff --git a/gdb/windows-nat.c b/gdb/windows-nat.c
index f52af9a..3452f6c 100644
--- a/gdb/windows-nat.c
+++ b/gdb/windows-nat.c
@@ -834,7 +834,7 @@ windows_make_so (const char *name, LPVOID load_addr)
     {
       asection *text = NULL;
 
-      gdb_bfd_ref_ptr abfd (gdb_bfd_open (so->so_name, "pei-i386", -1));
+      gdb_bfd_ref_ptr abfd (gdb_bfd_open (so->so_name, "pei-i386"));
 
       if (abfd == NULL)
 	return so;
diff --git a/gdb/windows-tdep.c b/gdb/windows-tdep.c
index 086038a..20a18e6 100644
--- a/gdb/windows-tdep.c
+++ b/gdb/windows-tdep.c
@@ -537,7 +537,7 @@ windows_xfer_shared_library (const char* so_name, CORE_ADDR load_addr,
 
   if (!text_offset)
     {
-      gdb_bfd_ref_ptr dll (gdb_bfd_open (so_name, gnutarget, -1));
+      gdb_bfd_ref_ptr dll (gdb_bfd_open (so_name, gnutarget));
       /* The following calls are OK even if dll is NULL.
 	 The default value 0x1000 is returned by pe_text_section_offset
 	 in that case.  */