2004-08-02 Andrew Cagney <cagney@gnu.org>

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

diff --git a/gdb/osabi.c b/gdb/osabi.c
index 239d508309fcd771a9d2e4275b7969ba9a605e74..ea84456cc7bd5e27930c2de51c23ba3edf7af502 100644 (file)
--- a/gdb/osabi.c
+++ b/gdb/osabi.c
@@ -1,5 +1,6 @@
 /* OS ABI variant handling for GDB.
-   Copyright 2001, 2002, 2003 Free Software Foundation, Inc.
+
+   Copyright 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -473,6 +474,15 @@ generic_elf_osabi_sniff_abi_tag_sections: unknown OS number %d",
       return;
     }
 
+  /* .note.openbsd.ident notes, used by OpenBSD.  */
+  if (strcmp (name, ".note.openbsd.ident") == 0
+      && check_note (abfd, sect, note, "OpenBSD", 4, NT_OPENBSD_IDENT))
+    {
+      /* There is no need to check the version yet.  */
+      *osabi = GDB_OSABI_OPENBSD_ELF;
+      return;
+    }
+
   /* .note.netbsdcore.procinfo notes, used by NetBSD.  */
   if (strcmp (name, ".note.netbsdcore.procinfo") == 0)
     {
@@ -492,10 +502,11 @@ generic_elf_osabi_sniffer (bfd *abfd)
   switch (elfosabi)
     {
     case ELFOSABI_NONE:
-      /* When elfosabi is ELFOSABI_NONE (0), then the ELF structures in the
-         file are conforming to the base specification for that machine
-        (there are no OS-specific extensions).  In order to determine the
-        real OS in use we must look for OS notes that have been added.  */
+      /* When the EI_OSABI field in the ELF header is ELFOSABI_NONE
+         (0), then the ELF structures in the file are conforming to
+         the base specification for that machine (there are no
+         OS-specific extensions).  In order to determine the real OS
+         in use we must look for OS-specific notes.  */
       bfd_map_over_sections (abfd,
                             generic_elf_osabi_sniff_abi_tag_sections,
                             &osabi);
@@ -522,7 +533,14 @@ generic_elf_osabi_sniffer (bfd *abfd)
       break;
 
     case ELFOSABI_HPUX:
+      /* For some reason the default value for the EI_OSABI field is
+         ELFOSABI_HPUX for all PA-RISC targets (with the exception of
+         GNU/Linux).  We use HP-UX ELF as the default, but let any
+         OS-specific notes override this.  */
       osabi = GDB_OSABI_HPUX_ELF;
+      bfd_map_over_sections (abfd,
+                            generic_elf_osabi_sniff_abi_tag_sections,
+                            &osabi);
       break;
     }