Use sigsetjmp/siglongjmp in opcodes

[deliverable/binutils-gdb.git] / gdb / elfread.c

diff --git a/gdb/elfread.c b/gdb/elfread.c
index 3aec3526a0bb587ee79550ee910e0cb9f8d787bc..085ff4729c202403165e16c23105b0340e4c3cb8 100644 (file)
--- a/gdb/elfread.c
+++ b/gdb/elfread.c
@@ -63,9 +63,9 @@ struct elfinfo
     asection *mdebugsect;      /* Section pointer for .mdebug section */
   };
 
-/* Per-objfile data for probe info.  */
+/* Per-BFD data for probe info.  */
 
-static const struct objfile_data *probe_key = NULL;
+static const struct bfd_data *probe_key = NULL;
 
 static void free_elfinfo (void *);
 
@@ -1084,7 +1084,8 @@ elf_gnu_ifunc_resolver_return_stop (struct breakpoint *b)
    symbols.  */
 
 static void
-elf_read_minimal_symbols (struct objfile *objfile, int symfile_flags)
+elf_read_minimal_symbols (struct objfile *objfile, int symfile_flags,
+                         const struct elfinfo *ei)
 {
   bfd *synth_abfd, *abfd = objfile->obfd;
   struct cleanup *back_to;
@@ -1100,6 +1101,21 @@ elf_read_minimal_symbols (struct objfile *objfile, int symfile_flags)
                          objfile_name (objfile));
     }
 
+  /* If we already have minsyms, then we can skip some work here.
+     However, if there were stabs or mdebug sections, we go ahead and
+     redo all the work anyway, because the psym readers for those
+     kinds of debuginfo need extra information found here.  This can
+     go away once all types of symbols are in the per-BFD object.  */
+  if (objfile->per_bfd->minsyms_read
+      && ei->stabsect == NULL
+      && ei->mdebugsect == NULL)
+    {
+      if (symtab_create_debug)
+       fprintf_unfiltered (gdb_stdlog,
+                           "... minimal symbols previously read\n");
+      return;
+    }
+
   init_minimal_symbol_collection ();
   back_to = make_cleanup_discard_minimal_symbols ();
 
@@ -1242,16 +1258,11 @@ elf_symfile_read (struct objfile *objfile, int symfile_flags)
   bfd *abfd = objfile->obfd;
   struct elfinfo ei;
 
-  elf_read_minimal_symbols (objfile, symfile_flags);
-
   memset ((char *) &ei, 0, sizeof (ei));
-
-  /* Now process debugging information, which is contained in
-     special ELF sections.  */
-
-  /* We first have to find them...  */
   bfd_map_over_sections (abfd, elf_locate_sections, (void *) & ei);
 
+  elf_read_minimal_symbols (objfile, symfile_flags, &ei);
+
   /* ELF debugging information is inserted into the psymtab in the
      order of least informative first - most informative last.  Since
      the psymtab table is searched `most recent insertion first' this
@@ -1485,12 +1496,12 @@ elfstab_offset_sections (struct objfile *objfile, struct partial_symtab *pst)
 static VEC (probe_p) *
 elf_get_probes (struct objfile *objfile)
 {
-  VEC (probe_p) *probes_per_objfile;
+  VEC (probe_p) *probes_per_bfd;
 
   /* Have we parsed this objfile's probes already?  */
-  probes_per_objfile = objfile_data (objfile, probe_key);
+  probes_per_bfd = bfd_data (objfile->obfd, probe_key);
 
-  if (!probes_per_objfile)
+  if (!probes_per_bfd)
     {
       int ix;
       const struct probe_ops *probe_ops;
@@ -1499,40 +1510,25 @@ elf_get_probes (struct objfile *objfile)
         objfile.  */
       for (ix = 0; VEC_iterate (probe_ops_cp, all_probe_ops, ix, probe_ops);
           ix++)
-       probe_ops->get_probes (&probes_per_objfile, objfile);
+       probe_ops->get_probes (&probes_per_bfd, objfile);
 
-      if (probes_per_objfile == NULL)
+      if (probes_per_bfd == NULL)
        {
-         VEC_reserve (probe_p, probes_per_objfile, 1);
-         gdb_assert (probes_per_objfile != NULL);
+         VEC_reserve (probe_p, probes_per_bfd, 1);
+         gdb_assert (probes_per_bfd != NULL);
        }
 
-      set_objfile_data (objfile, probe_key, probes_per_objfile);
+      set_bfd_data (objfile->obfd, probe_key, probes_per_bfd);
     }
 
-  return probes_per_objfile;
-}
-
-/* Implementation of `sym_relocate_probe', as documented in symfile.h.  */
-
-static void
-elf_symfile_relocate_probe (struct objfile *objfile,
-                           const struct section_offsets *new_offsets,
-                           const struct section_offsets *delta)
-{
-  int ix;
-  VEC (probe_p) *probes = objfile_data (objfile, probe_key);
-  struct probe *probe;
-
-  for (ix = 0; VEC_iterate (probe_p, probes, ix, probe); ix++)
-    probe->pops->relocate (probe, ANOFFSET (delta, SECT_OFF_TEXT (objfile)));
+  return probes_per_bfd;
 }
 
 /* Helper function used to free the space allocated for storing SystemTap
    probe information.  */
 
 static void
-probe_key_free (struct objfile *objfile, void *d)
+probe_key_free (bfd *abfd, void *d)
 {
   int ix;
   VEC (probe_p) *probes = d;
@@ -1551,7 +1547,6 @@ probe_key_free (struct objfile *objfile, void *d)
 static const struct sym_probe_fns elf_probe_fns =
 {
   elf_get_probes,                  /* sym_get_probes */
-  elf_symfile_relocate_probe,      /* sym_relocate_probe */
 };
 
 /* Register that we are able to handle ELF object file formats.  */
@@ -1619,7 +1614,7 @@ static const struct gnu_ifunc_fns elf_gnu_ifunc_fns =
 void
 _initialize_elfread (void)
 {
-  probe_key = register_objfile_data_with_cleanup (NULL, probe_key_free);
+  probe_key = register_bfd_data_with_cleanup (NULL, probe_key_free);
   add_symtab_fns (bfd_target_elf_flavour, &elf_sym_fns);
 
   elf_objfile_gnu_ifunc_cache_data = register_objfile_data ();