Refactor arm_software_single_step to use regcache

[deliverable/binutils-gdb.git] / gdb / prologue-value.h

diff --git a/gdb/prologue-value.h b/gdb/prologue-value.h
index ec44cad021f052cf7a7bee034302ce6818c248e6..7d3d779073b7bd378282ee1b1be1a388b11cf75a 100644 (file)
--- a/gdb/prologue-value.h
+++ b/gdb/prologue-value.h
@@ -1,11 +1,11 @@
 /* Interface to prologue value handling for GDB.
-   Copyright 2003, 2004, 2005 Free Software Foundation, Inc.
+   Copyright (C) 2003-2015 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,
@@ -14,16 +14,32 @@
    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:
-
-        Free Software Foundation, Inc.
-        51 Franklin St - Fifth Floor
-        Boston, MA 02110-1301
-        USA */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef PROLOGUE_VALUE_H
 #define PROLOGUE_VALUE_H
 
+/* What sort of value is this?  This determines the interpretation
+   of subsequent fields.  */
+enum prologue_value_kind
+{
+  /* We don't know anything about the value.  This is also used for
+     values we could have kept track of, when doing so would have
+     been too complex and we don't want to bother.  The bottom of
+     our lattice.  */
+  pvk_unknown,
+
+  /* A known constant.  K is its value.  */
+  pvk_constant,
+
+  /* The value that register REG originally had *UPON ENTRY TO THE
+     FUNCTION*, plus K.  If K is zero, this means, obviously, just
+     the value REG had upon entry to the function.  REG is a GDB
+     register number.  Before we start interpreting, we initialize
+     every register R to { pvk_register, R, 0 }.  */
+  pvk_register,
+};
+
 /* When we analyze a prologue, we're really doing 'abstract
    interpretation' or 'pseudo-evaluation': running the function's code
    in simulation, but using conservative approximations of the values
@@ -125,25 +141,7 @@ struct prologue_value {
 
   /* What sort of value is this?  This determines the interpretation
      of subsequent fields.  */
-  enum {
-
-    /* We don't know anything about the value.  This is also used for
-       values we could have kept track of, when doing so would have
-       been too complex and we don't want to bother.  The bottom of
-       our lattice.  */
-    pvk_unknown,
-
-    /* A known constant.  K is its value.  */
-    pvk_constant,
-
-    /* The value that register REG originally had *UPON ENTRY TO THE
-       FUNCTION*, plus K.  If K is zero, this means, obviously, just
-       the value REG had upon entry to the function.  REG is a GDB
-       register number.  Before we start interpreting, we initialize
-       every register R to { pvk_register, R, 0 }.  */
-    pvk_register,
-
-  } kind;
+  enum prologue_value_kind kind;
 
   /* The meanings of the following fields depend on 'kind'; see the
      comments for the specific 'kind' values.  */
@@ -234,8 +232,11 @@ struct pv_area;
 
    Stores to constant addresses, unknown addresses, or to addresses
    relative to registers other than BASE_REG will trash this area; see
-   pv_area_store_would_trash.  */
-struct pv_area *make_pv_area (int base_reg);
+   pv_area_store_would_trash.
+
+   To check whether a pointer refers to this area, only the low
+   ADDR_BIT bits will be compared.  */
+struct pv_area *make_pv_area (int base_reg, int addr_bit);
 
 /* Free AREA.  */
 void free_pv_area (struct pv_area *area);
@@ -285,7 +286,7 @@ int pv_area_store_would_trash (struct pv_area *area, pv_t addr);
    instead, and collecting all your information in one pass.  */
 int pv_area_find_reg (struct pv_area *area,
                       struct gdbarch *gdbarch,
-                      int register,
+                      int reg,
                       CORE_ADDR *offset_p);