* configure.in: Restore CFLAGS if GM P isn't present.

[deliverable/binutils-gdb.git] / gdb / i386-sol2-tdep.c

diff --git a/gdb/i386-sol2-tdep.c b/gdb/i386-sol2-tdep.c
index 698066fa901bf85e642c613ff41e264b8b115d3d..dfe6d705f1345d170cb7e335fb0b579151c56ac6 100644 (file)
--- a/gdb/i386-sol2-tdep.c
+++ b/gdb/i386-sol2-tdep.c
@@ -1,6 +1,6 @@
 /* Target-dependent code for Solaris x86.
 
-   Copyright 2002, 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2003, 2004, 2006 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -16,13 +16,16 @@
 
    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.  */
 
 #include "defs.h"
 #include "value.h"
 #include "osabi.h"
 
+#include "gdb_string.h"
+
+#include "sol2-tdep.h"
 #include "i386-tdep.h"
 #include "solib-svr4.h"
 
@@ -47,14 +50,18 @@ static int i386_sol2_gregset_reg_offset[] =
   0 * 4                                /* %gs */
 };
 
+/* Return whether the frame preceding NEXT_FRAME corresponds to a
+   Solaris sigtramp routine.  */
+
 static int
 i386_sol2_sigtramp_p (struct frame_info *next_frame)
 {
   CORE_ADDR pc = frame_pc_unwind (next_frame);
+  char *name;
 
-  /* Signal handler frames under Solaris 2 are recognized by a return
-     address of 0xffffffff.  */
-  return (pc == 0xffffffff);
+  find_pc_partial_function (pc, &name, NULL, NULL);
+  return (name && (strcmp ("sigacthandler", name) == 0
+                  || strcmp (name, "ucbsigvechandler") == 0));
 }
 
 /* Solaris doesn't have a `struct sigcontext', but it does have a
@@ -95,6 +102,8 @@ i386_sol2_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   tdep->sc_reg_offset = tdep->gregset_reg_offset;
   tdep->sc_num_regs = tdep->gregset_num_regs;
 
+  /* Solaris has SVR4-style shared libraries.  */
+  set_gdbarch_skip_solib_resolver (gdbarch, sol2_skip_solib_resolver);
   set_solib_svr4_fetch_link_map_offsets
     (gdbarch, svr4_ilp32_fetch_link_map_offsets);
 }