bfd:
[deliverable/binutils-gdb.git] / bfd / hpux-core.c
index a8360228eb681bd61e4a5571ab87332a87553858..9a97531eb93433c9a4f3d82062155ad925d41828 100644 (file)
@@ -1,5 +1,5 @@
 /* BFD back-end for HP/UX core files.
-   Copyright 1993, 1994, 1996, 1998, 1999, 2001, 2002
+   Copyright 1993, 1994, 1996, 1998, 1999, 2001, 2002, 2003, 2004
    Free Software Foundation, Inc.
    Written by Stu Grossman, Cygnus Support.
    Converted to back-end form by Ian Lance Taylor, Cygnus SUpport
@@ -18,7 +18,7 @@ GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 /* This file can only be compiled on systems which use HP/UX style
    core files.  */
@@ -61,7 +61,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 # endif
 #endif
 #include <signal.h>
+#ifdef HPUX_CORE
 #include <machine/reg.h>
+#endif
 #include <sys/user.h>          /* After a.out.h  */
 #include <sys/file.h>
 
@@ -103,20 +105,23 @@ struct hpux_core_struct
 static asection *make_bfd_asection
   PARAMS ((bfd *, const char *, flagword, bfd_size_type, bfd_vma,
           unsigned int));
-static asymbol *hpux_core_make_empty_symbol PARAMS ((bfd *));
-static const bfd_target *hpux_core_core_file_p PARAMS ((bfd *));
-static char *hpux_core_core_file_failing_command PARAMS ((bfd *));
-static int hpux_core_core_file_failing_signal PARAMS ((bfd *));
-static boolean hpux_core_core_file_matches_executable_p
+static const bfd_target *hpux_core_core_file_p
+  PARAMS ((bfd *));
+static char *hpux_core_core_file_failing_command
+  PARAMS ((bfd *));
+static int hpux_core_core_file_failing_signal
+  PARAMS ((bfd *));
+static bfd_boolean hpux_core_core_file_matches_executable_p
   PARAMS ((bfd *, bfd *));
-static void swap_abort PARAMS ((void));
+static void swap_abort
+  PARAMS ((void));
 
 static asection *
-make_bfd_asection (abfd, name, flags, _raw_size, vma, alignment_power)
+make_bfd_asection (abfd, name, flags, size, vma, alignment_power)
      bfd *abfd;
      const char *name;
      flagword flags;
-     bfd_size_type _raw_size;
+     bfd_size_type size;
      bfd_vma vma;
      unsigned int alignment_power;
 {
@@ -134,7 +139,7 @@ make_bfd_asection (abfd, name, flags, _raw_size, vma, alignment_power)
     return NULL;
 
   asect->flags = flags;
-  asect->_raw_size = _raw_size;
+  asect->size = size;
   asect->vma = vma;
   asect->filepos = bfd_tell (abfd);
   asect->alignment_power = alignment_power;
@@ -142,16 +147,15 @@ make_bfd_asection (abfd, name, flags, _raw_size, vma, alignment_power)
   return asect;
 }
 
-static asymbol *
-hpux_core_make_empty_symbol (abfd)
-     bfd *abfd;
-{
-  asymbol *new;
+/* Return true if the given core file section corresponds to a thread,
+   based on its name.  */
 
-  new = (asymbol *) bfd_zalloc (abfd, (bfd_size_type) sizeof (asymbol));
-  if (new)
-    new->the_bfd = abfd;
-  return new;
+static int
+thread_section_p (bfd *abfd ATTRIBUTE_UNUSED,
+                  asection *sect,
+                  void *obj ATTRIBUTE_UNUSED)
+{
+  return (strncmp (bfd_section_name (abfd, sect), ".reg/", 5) == 0);
 }
 
 /* this function builds a bfd target if the file is a corefile.
@@ -216,7 +220,7 @@ hpux_core_core_file_p (abfd)
 
               /* However, we also want to create those sections with the
                  file positioned at the start of the record, it seems. */
-            if (bfd_seek (abfd, (file_ptr) -core_header.len, SEEK_CUR) != 0)
+            if (bfd_seek (abfd, -((file_ptr) core_header.len), SEEK_CUR) != 0)
               break;
 
 #if defined(PROC_INFO_HAS_THREAD_ID)
@@ -242,10 +246,11 @@ hpux_core_core_file_p (abfd)
             if (core_kernel_thread_id (abfd) == 0)
               {
                 if (!make_bfd_asection (abfd, ".reg",
-                                        SEC_HAS_CONTENTS,
-                                        core_header.len,
-                                        (int) &proc_info - (int) & proc_info.hw_regs,
-                                        2))
+                                       SEC_HAS_CONTENTS,
+                                       core_header.len,
+                                       (bfd_vma) offsetof (struct proc_info,
+                                                           hw_regs),
+                                       2))
                  goto fail;
               }
             else
@@ -257,17 +262,19 @@ hpux_core_core_file_p (abfd)
                    if (!make_bfd_asection (abfd, ".reg",
                                            SEC_HAS_CONTENTS,
                                            core_header.len,
-                                           (int) &proc_info - (int) & proc_info.hw_regs,
+                                           (bfd_vma)offsetof (struct proc_info,
+                                                              hw_regs),
                                            2))
                      goto fail;
                   }
                 /* We always make one of these sections, for every thread. */
                 sprintf (secname, ".reg/%d", core_kernel_thread_id (abfd));
                 if (!make_bfd_asection (abfd, secname,
-                                        SEC_HAS_CONTENTS,
-                                        core_header.len,
-                                        (int) &proc_info - (int) & proc_info.hw_regs,
-                                        2))
+                                       SEC_HAS_CONTENTS,
+                                       core_header.len,
+                                       (bfd_vma) offsetof (struct proc_info,
+                                                           hw_regs),
+                                       2))
                  goto fail;
               }
            core_signal (abfd) = proc_info.sig;
@@ -285,7 +292,8 @@ hpux_core_core_file_p (abfd)
        case CORE_ANON_SHMEM:
          if (!make_bfd_asection (abfd, ".data",
                                  SEC_ALLOC + SEC_LOAD + SEC_HAS_CONTENTS,
-                                 core_header.len, core_header.addr, 2))
+                                 core_header.len,
+                                 (bfd_vma) core_header.addr, 2))
            goto fail;
 
          bfd_seek (abfd, (file_ptr) core_header.len, SEEK_CUR);
@@ -309,6 +317,29 @@ hpux_core_core_file_p (abfd)
 
   /* OK, we believe you.  You're a core file (sure, sure).  */
 
+  /* On HP/UX, we sometimes encounter core files where none of the threads
+     was found to be the running thread (ie the signal was set to -1 for
+     all threads).  This happens when the program was aborted externally
+     via a TT_CORE ttrace system call.  In that case, we just pick one
+     thread at random to be the active thread.  */
+  if (core_kernel_thread_id (abfd) != 0
+      && bfd_get_section_by_name (abfd, ".reg") == NULL)
+    {
+      asection *asect = bfd_sections_find_if (abfd, thread_section_p, NULL);
+      asection *reg_sect;
+
+      if (asect != NULL)
+        {
+          reg_sect = make_bfd_asection (abfd, ".reg", asect->flags,
+                                        asect->size, asect->vma,
+                                        asect->alignment_power);
+          if (reg_sect == NULL)
+            goto fail;
+
+          reg_sect->filepos = asect->filepos;
+        }
+    }
+
   /* Were there sections of unknown type?  If so, yet there were
      at least some complete sections of known type, then, issue
      a warning.  Possibly the core file was generated on a version
@@ -336,7 +367,6 @@ hpux_core_core_file_failing_command (abfd)
   return core_command (abfd);
 }
 
-/* ARGSUSED */
 static int
 hpux_core_core_file_failing_signal (abfd)
      bfd *abfd;
@@ -344,37 +374,27 @@ hpux_core_core_file_failing_signal (abfd)
   return core_signal (abfd);
 }
 
-/* ARGSUSED */
-static boolean
+static bfd_boolean
 hpux_core_core_file_matches_executable_p (core_bfd, exec_bfd)
      bfd *core_bfd ATTRIBUTE_UNUSED;
      bfd *exec_bfd ATTRIBUTE_UNUSED;
 {
-  return true;                 /* FIXME, We have no way of telling at this point */
+  return TRUE;                 /* FIXME, We have no way of telling at this point */
 }
 \f
-#define hpux_core_get_symtab_upper_bound _bfd_nosymbols_get_symtab_upper_bound
-#define hpux_core_get_symtab _bfd_nosymbols_get_symtab
-#define hpux_core_print_symbol _bfd_nosymbols_print_symbol
-#define hpux_core_get_symbol_info _bfd_nosymbols_get_symbol_info
-#define hpux_core_bfd_is_local_label_name \
-  _bfd_nosymbols_bfd_is_local_label_name
-#define hpux_core_get_lineno _bfd_nosymbols_get_lineno
-#define hpux_core_find_nearest_line _bfd_nosymbols_find_nearest_line
-#define hpux_core_bfd_make_debug_symbol _bfd_nosymbols_bfd_make_debug_symbol
-#define hpux_core_read_minisymbols _bfd_nosymbols_read_minisymbols
-#define hpux_core_minisymbol_to_symbol _bfd_nosymbols_minisymbol_to_symbol
-
 /* If somebody calls any byte-swapping routines, shoot them.  */
 static void
 swap_abort ()
 {
   abort(); /* This way doesn't require any declaration for ANSI to fuck up */
 }
-#define        NO_GET  ((bfd_vma (*) PARAMS ((   const bfd_byte *))) swap_abort )
-#define        NO_PUT  ((void    (*) PARAMS ((bfd_vma, bfd_byte *))) swap_abort )
-#define        NO_SIGNED_GET \
-  ((bfd_signed_vma (*) PARAMS ((const bfd_byte *))) swap_abort )
+
+#define        NO_GET ((bfd_vma (*) (const void *)) swap_abort)
+#define        NO_PUT ((void (*) (bfd_vma, void *)) swap_abort)
+#define        NO_GETS ((bfd_signed_vma (*) (const void *)) swap_abort)
+#define        NO_GET64 ((bfd_uint64_t (*) (const void *)) swap_abort)
+#define        NO_PUT64 ((void (*) (bfd_uint64_t, void *)) swap_abort)
+#define        NO_GETS64 ((bfd_int64_t (*) (const void *)) swap_abort)
 
 const bfd_target hpux_core_vec =
   {
@@ -389,39 +409,39 @@ const bfd_target hpux_core_vec =
     0,                                                    /* symbol prefix */
     ' ',                                                  /* ar_pad_char */
     16,                                                           /* ar_max_namelen */
-    NO_GET, NO_SIGNED_GET, NO_PUT,     /* 64 bit data */
-    NO_GET, NO_SIGNED_GET, NO_PUT,     /* 32 bit data */
-    NO_GET, NO_SIGNED_GET, NO_PUT,     /* 16 bit data */
-    NO_GET, NO_SIGNED_GET, NO_PUT,     /* 64 bit hdrs */
-    NO_GET, NO_SIGNED_GET, NO_PUT,     /* 32 bit hdrs */
-    NO_GET, NO_SIGNED_GET, NO_PUT,     /* 16 bit hdrs */
+    NO_GET64, NO_GETS64, NO_PUT64,     /* 64 bit data */
+    NO_GET, NO_GETS, NO_PUT,           /* 32 bit data */
+    NO_GET, NO_GETS, NO_PUT,           /* 16 bit data */
+    NO_GET64, NO_GETS64, NO_PUT64,     /* 64 bit hdrs */
+    NO_GET, NO_GETS, NO_PUT,           /* 32 bit hdrs */
+    NO_GET, NO_GETS, NO_PUT,           /* 16 bit hdrs */
 
     {                          /* bfd_check_format */
-     _bfd_dummy_target,                /* unknown format */
-     _bfd_dummy_target,                /* object file */
-     _bfd_dummy_target,                /* archive */
-     hpux_core_core_file_p     /* a core file */
+      _bfd_dummy_target,               /* unknown format */
+      _bfd_dummy_target,               /* object file */
+      _bfd_dummy_target,               /* archive */
+      hpux_core_core_file_p            /* a core file */
     },
     {                          /* bfd_set_format */
-     bfd_false, bfd_false,
-     bfd_false, bfd_false
+      bfd_false, bfd_false,
+      bfd_false, bfd_false
     },
     {                          /* bfd_write_contents */
-     bfd_false, bfd_false,
-     bfd_false, bfd_false
+      bfd_false, bfd_false,
+      bfd_false, bfd_false
     },
 
-       BFD_JUMP_TABLE_GENERIC (_bfd_generic),
-       BFD_JUMP_TABLE_COPY (_bfd_generic),
-       BFD_JUMP_TABLE_CORE (hpux_core),
-       BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
-       BFD_JUMP_TABLE_SYMBOLS (hpux_core),
-       BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
-       BFD_JUMP_TABLE_WRITE (_bfd_generic),
-       BFD_JUMP_TABLE_LINK (_bfd_nolink),
-       BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+    BFD_JUMP_TABLE_GENERIC (_bfd_generic),
+    BFD_JUMP_TABLE_COPY (_bfd_generic),
+    BFD_JUMP_TABLE_CORE (hpux_core),
+    BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
+    BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
+    BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
+    BFD_JUMP_TABLE_WRITE (_bfd_generic),
+    BFD_JUMP_TABLE_LINK (_bfd_nolink),
+    BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
 
     NULL,
 
     (PTR) 0                    /* backend_data */
-};
+  };
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