[FT32] gdb: Correctly interpret function prologs

[deliverable/binutils-gdb.git] / gdb / alphaobsd-tdep.c

diff --git a/gdb/alphaobsd-tdep.c b/gdb/alphaobsd-tdep.c
index ad0360e6076dc709bb324eea086c7482de80a9b0..2a5f21f49c1d34baedbea6051fcd13d8c13d5717 100644 (file)
--- a/gdb/alphaobsd-tdep.c
+++ b/gdb/alphaobsd-tdep.c
@@ -1,12 +1,12 @@
 /* Target-dependent code for OpenBSD/alpha.
 
-   Copyright (C) 2006 Free Software Foundation, Inc.
+   Copyright (C) 2006-2015 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,
@@ -15,15 +15,14 @@
    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., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
 #include "frame.h"
 #include "gdbcore.h"
 #include "osabi.h"
 
+#include "obsd-tdep.h"
 #include "alpha-tdep.h"
 #include "alphabsd-tdep.h"
 #include "solib-svr4.h"
@@ -41,13 +40,14 @@
 static const int alphaobsd_page_size = 8192;
 
 static LONGEST
-alphaobsd_sigtramp_offset (CORE_ADDR pc)
+alphaobsd_sigtramp_offset (struct gdbarch *gdbarch, CORE_ADDR pc)
 {
   return (pc & (alphaobsd_page_size - 1));
 }
 
 static int
-alphaobsd_pc_in_sigtramp (CORE_ADDR pc, char *name)
+alphaobsd_pc_in_sigtramp (struct gdbarch *gdbarch,
+                         CORE_ADDR pc, const char *name)
 {
   CORE_ADDR start_pc = (pc & ~(alphaobsd_page_size - 1));
   unsigned insn;
@@ -56,12 +56,12 @@ alphaobsd_pc_in_sigtramp (CORE_ADDR pc, char *name)
     return 0;
 
   /* Check for "".  */
-  insn = alpha_read_insn (start_pc + 5 * ALPHA_INSN_SIZE);
+  insn = alpha_read_insn (gdbarch, start_pc + 5 * ALPHA_INSN_SIZE);
   if (insn != 0x201f0067)
     return 0;
 
   /* Check for "".  */
-  insn = alpha_read_insn (start_pc + 6 * ALPHA_INSN_SIZE);
+  insn = alpha_read_insn (gdbarch, start_pc + 6 * ALPHA_INSN_SIZE);
   if (insn != 0x00000083)
     return 0;
 
@@ -69,26 +69,27 @@ alphaobsd_pc_in_sigtramp (CORE_ADDR pc, char *name)
 }
 
 static CORE_ADDR
-alphaobsd_sigcontext_addr (struct frame_info *next_frame)
+alphaobsd_sigcontext_addr (struct frame_info *this_frame)
 {
-  CORE_ADDR pc = frame_pc_unwind (next_frame);
+  struct gdbarch *gdbarch = get_frame_arch (this_frame);
+  CORE_ADDR pc = get_frame_pc (this_frame);
 
-  if (alphaobsd_sigtramp_offset (pc) < 3 * ALPHA_INSN_SIZE)
+  if (alphaobsd_sigtramp_offset (gdbarch, pc) < 3 * ALPHA_INSN_SIZE)
     {
       /* On entry, a pointer the `struct sigcontext' is passed in %a2.  */
-      return frame_unwind_register_unsigned (next_frame, ALPHA_A0_REGNUM + 2);
+      return get_frame_register_unsigned (this_frame, ALPHA_A0_REGNUM + 2);
     }
-  else if (alphaobsd_sigtramp_offset (pc) < 4 * ALPHA_INSN_SIZE)
+  else if (alphaobsd_sigtramp_offset (gdbarch, pc) < 4 * ALPHA_INSN_SIZE)
     {
       /* It is stored on the stack Before calling the signal handler.  */
       CORE_ADDR sp;
-      sp = frame_unwind_register_unsigned (next_frame, ALPHA_SP_REGNUM);
-      return get_frame_memory_unsigned (next_frame, sp, 8);
+      sp = get_frame_register_unsigned (this_frame, ALPHA_SP_REGNUM);
+      return get_frame_memory_unsigned (this_frame, sp, 8);
     }
   else
     {
       /* It is reloaded into %a0 for the sigreturn(2) call.  */
-      return frame_unwind_register_unsigned (next_frame, ALPHA_A0_REGNUM);
+      return get_frame_register_unsigned (this_frame, ALPHA_A0_REGNUM);
     }
 }
 \f
@@ -111,6 +112,7 @@ alphaobsd_init_abi(struct gdbarch_info info, struct gdbarch *gdbarch)
   /* OpenBSD/alpha has SVR4-style shared libraries.  */
   set_solib_svr4_fetch_link_map_offsets
     (gdbarch, svr4_lp64_fetch_link_map_offsets);
+  set_gdbarch_skip_solib_resolver (gdbarch, obsd_skip_solib_resolver);
 
   tdep->dynamic_sigtramp_offset = alphaobsd_sigtramp_offset;
   tdep->pc_in_sigtramp = alphaobsd_pc_in_sigtramp;
@@ -119,8 +121,8 @@ alphaobsd_init_abi(struct gdbarch_info info, struct gdbarch *gdbarch)
   tdep->jb_pc = 2;
   tdep->jb_elt_size = 8;
 
-  set_gdbarch_regset_from_core_section
-    (gdbarch, alphanbsd_regset_from_core_section);
+  set_gdbarch_iterate_over_regset_sections
+    (gdbarch, alphanbsd_iterate_over_regset_sections);
 }
 \f