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[deliverable/binutils-gdb.git] / gdb / sparc-sol2-tdep.c

diff --git a/gdb/sparc-sol2-tdep.c b/gdb/sparc-sol2-tdep.c
index 7944326fa21dba253f642d949e06f0538bde6e45..50434f695f7478a8091d76de49498775c429d979 100644 (file)
--- a/gdb/sparc-sol2-tdep.c
+++ b/gdb/sparc-sol2-tdep.c
@@ -1,12 +1,12 @@
 /* Target-dependent code for Solaris SPARC.
 
-   Copyright 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -15,9 +15,7 @@
    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.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
 #include "frame.h"
@@ -33,6 +31,7 @@
 #include "gdb_assert.h"
 #include "gdb_string.h"
 
+#include "sol2-tdep.h"
 #include "sparc-tdep.h"
 #include "solib-svr4.h"
 
@@ -70,7 +69,8 @@ int
 sparc_sol2_pc_in_sigtramp (CORE_ADDR pc, char *name)
 {
   return (name && (strcmp (name, "sigacthandler") == 0
-                  || strcmp (name, "ucbsigvechandler") == 0));
+                  || strcmp (name, "ucbsigvechandler") == 0
+                  || strcmp (name, "__sighndlr") == 0));
 }
 
 static struct sparc_frame_cache *
@@ -140,13 +140,13 @@ sparc32_sol2_sigtramp_frame_prev_register (struct frame_info *next_frame,
                                           int regnum, int *optimizedp,
                                           enum lval_type *lvalp,
                                           CORE_ADDR *addrp,
-                                          int *realnump, void *valuep)
+                                          int *realnump, gdb_byte *valuep)
 {
   struct sparc_frame_cache *cache =
     sparc32_sol2_sigtramp_frame_cache (next_frame, this_cache);
 
-  trad_frame_prev_register (next_frame, cache->saved_regs, regnum,
-                           optimizedp, lvalp, addrp, realnump, valuep);
+  trad_frame_get_prev_register (next_frame, cache->saved_regs, regnum,
+                               optimizedp, lvalp, addrp, realnump, valuep);
 }
 
 static const struct frame_unwind sparc32_sol2_sigtramp_frame_unwind =
@@ -168,6 +168,37 @@ sparc32_sol2_sigtramp_frame_sniffer (struct frame_info *next_frame)
 
   return NULL;
 }
+
+/* Unglobalize NAME.  */
+
+char *
+sparc_sol2_static_transform_name (char *name)
+{
+  /* The Sun compilers (Sun ONE Studio, Forte Developer, Sun WorkShop,
+     SunPRO) convert file static variables into global values, a
+     process known as globalization.  In order to do this, the
+     compiler will create a unique prefix and prepend it to each file
+     static variable.  For static variables within a function, this
+     globalization prefix is followed by the function name (nested
+     static variables within a function are supposed to generate a
+     warning message, and are left alone).  The procedure is
+     documented in the Stabs Interface Manual, which is distrubuted
+     with the compilers, although version 4.0 of the manual seems to
+     be incorrect in some places, at least for SPARC.  The
+     globalization prefix is encoded into an N_OPT stab, with the form
+     "G=<prefix>".  The globalization prefix always seems to start
+     with a dollar sign '$'; a dot '.' is used as a seperator.  So we
+     simply strip everything up until the last dot.  */
+
+  if (name[0] == '$')
+    {
+      char *p = strrchr (name, '.');
+      if (p)
+        return p + 1;
+    }
+
+  return name;
+}
 \f
 
 void
@@ -175,9 +206,19 @@ sparc32_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
+  /* The Sun compilers (Sun ONE Studio, Forte Developer, Sun WorkShop, SunPRO)
+     compiler puts out 0 instead of the address in N_SO stabs.  Starting with
+     SunPRO 3.0, the compiler does this for N_FUN stabs too.  */
+  set_gdbarch_sofun_address_maybe_missing (gdbarch, 1);
+
+  /* The Sun compilers also do "globalization"; see the comment in
+     sparc_sol2_static_transform_name for more information.  */
+  set_gdbarch_static_transform_name
+    (gdbarch, sparc_sol2_static_transform_name);
+
   /* Solaris has SVR4-style shared libraries...  */
-  set_gdbarch_in_solib_call_trampoline (gdbarch, in_plt_section);
   set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
+  set_gdbarch_skip_solib_resolver (gdbarch, sol2_skip_solib_resolver);
   set_solib_svr4_fetch_link_map_offsets
     (gdbarch, svr4_ilp32_fetch_link_map_offsets);
 
@@ -188,7 +229,6 @@ sparc32_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   /* Solaris has kernel-assisted single-stepping support.  */
   set_gdbarch_software_single_step (gdbarch, NULL);
 
-  set_gdbarch_deprecated_pc_in_sigtramp (gdbarch, sparc_sol2_pc_in_sigtramp);
   frame_unwind_append_sniffer (gdbarch, sparc32_sol2_sigtramp_frame_sniffer);
 }
 \f