Fix PR threads/19422 - show which thread caused stop

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

diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c
index 2ac2f151730ed3cd7f3af9951599c47c3c484f36..b706463cec99b51557c212f12636db46ce1a00fd 100644 (file)
--- a/gdb/i386-tdep.c
+++ b/gdb/i386-tdep.c
@@ -1,6 +1,6 @@
 /* Intel 386 target-dependent stuff.
 
-   Copyright (C) 1988-2015 Free Software Foundation, Inc.
+   Copyright (C) 1988-2016 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -502,11 +502,11 @@ i386_dbx_reg_to_regnum (struct gdbarch *gdbarch, int reg)
   return gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch);
 }
 
-/* Convert SVR4 register number REG to the appropriate register number
+/* Convert SVR4 DWARF register number REG to the appropriate register number
    used by GDB.  */
 
 static int
-i386_svr4_reg_to_regnum (struct gdbarch *gdbarch, int reg)
+i386_svr4_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int reg)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
@@ -544,8 +544,20 @@ i386_svr4_reg_to_regnum (struct gdbarch *gdbarch, int reg)
     case 45: return I386_GS_REGNUM;
     }
 
-  /* This will hopefully provoke a warning.  */
-  return gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch);
+  return -1;
+}
+
+/* Wrapper on i386_svr4_dwarf_reg_to_regnum to return
+   num_regs + num_pseudo_regs for other debug formats.  */
+
+static int
+i386_svr4_reg_to_regnum (struct gdbarch *gdbarch, int reg)
+{
+  int regnum = i386_svr4_dwarf_reg_to_regnum (gdbarch, reg);
+
+  if (regnum == -1)
+    return gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch);
+  return regnum;
 }
 
 \f
@@ -8349,7 +8361,7 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_sdb_reg_to_regnum (gdbarch, i386_dbx_reg_to_regnum);
 
   /* Use the SVR4 register numbering scheme for DWARF 2.  */
-  set_gdbarch_dwarf2_reg_to_regnum (gdbarch, i386_svr4_reg_to_regnum);
+  set_gdbarch_dwarf2_reg_to_regnum (gdbarch, i386_svr4_dwarf_reg_to_regnum);
 
   /* We don't set gdbarch_stab_reg_to_regnum, since ECOFF doesn't seem to
      be in use on any of the supported i386 targets.  */
@@ -8478,7 +8490,7 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_insn_is_jump (gdbarch, i386_insn_is_jump);
 
   /* Hook in ABI-specific overrides, if they have been registered.  */
-  info.tdep_info = (struct gdbarch_tdep_info *) tdesc_data;
+  info.tdep_info = tdesc_data;
   gdbarch_init_osabi (info, gdbarch);
 
   if (!i386_validate_tdesc_p (tdep, tdesc_data))
@@ -8682,7 +8694,8 @@ i386_mpx_get_bt_entry (CORE_ADDR ptr, CORE_ADDR bd_base)
       bt_mask = (CORE_ADDR) MPX_BT_MASK;
 
       if ( sizeof (CORE_ADDR) == 4)
-       error (_("operation not supported"));
+       error (_("bound table examination not supported\
+ for 64-bit process with 32-bit GDB"));
     }
   else
     {
@@ -8774,7 +8787,7 @@ i386_mpx_info_bounds (char *args, int from_tty)
 
   if (!i386_mpx_enabled ())
     {
-      printf_unfiltered (_("Intel(R) Memory Protection Extensions not "
+      printf_unfiltered (_("Intel Memory Protection Extensions not "
                           "supported on this target.\n"));
       return;
     }
@@ -8794,7 +8807,7 @@ i386_mpx_info_bounds (char *args, int from_tty)
 
   for (i = 0; i < 4; i++)
     bt_entry[i] = read_memory_typed_address (bt_entry_addr
-                                            + i * data_ptr_type->length,
+                                            + i * TYPE_LENGTH (data_ptr_type),
                                             data_ptr_type);
 
   i386_mpx_print_bounds (bt_entry);
@@ -8816,7 +8829,7 @@ i386_mpx_set_bounds (char *args, int from_tty)
   struct type *data_ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
 
   if (!i386_mpx_enabled ())
-    error (_("Intel(R) Memory Protection Extensions not supported\
+    error (_("Intel Memory Protection Extensions not supported\
  on this target."));
 
   if (args == NULL)
@@ -8840,14 +8853,15 @@ i386_mpx_set_bounds (char *args, int from_tty)
   bt_entry_addr = i386_mpx_get_bt_entry (addr, bd_base);
   for (i = 0; i < 2; i++)
     bt_entry[i] = read_memory_typed_address (bt_entry_addr
-                                            + i * data_ptr_type->length,
+                                            + i * TYPE_LENGTH (data_ptr_type),
                                             data_ptr_type);
   bt_entry[0] = (uint64_t) lower;
   bt_entry[1] = ~(uint64_t) upper;
 
   for (i = 0; i < 2; i++)
-    write_memory_unsigned_integer (bt_entry_addr + i * data_ptr_type->length,
-                                  data_ptr_type->length, byte_order,
+    write_memory_unsigned_integer (bt_entry_addr
+                                  + i * TYPE_LENGTH (data_ptr_type),
+                                  TYPE_LENGTH (data_ptr_type), byte_order,
                                   bt_entry[i]);
 }
 
@@ -8902,14 +8916,14 @@ is \"default\"."),
   /* Add "mpx" prefix for the set commands.  */
 
   add_prefix_cmd ("mpx", class_support, set_mpx_cmd, _("\
-Set Intel(R) Memory Protection Extensions specific variables."),
+Set Intel Memory Protection Extensions specific variables."),
                  &mpx_set_cmdlist, "set mpx ",
                  0 /* allow-unknown */, &setlist);
 
   /* Add "mpx" prefix for the show commands.  */
 
   add_prefix_cmd ("mpx", class_support, show_mpx_cmd, _("\
-Show Intel(R) Memory Protection Extensions specific variables."),
+Show Intel Memory Protection Extensions specific variables."),
                  &mpx_show_cmdlist, "show mpx ",
                  0 /* allow-unknown */, &showlist);