-- --
-- B o d y --
-- --
--- Copyright (C) 2005-2006, Free Software Foundation, Inc. --
+-- Copyright (C) 2005-2007, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- Run-time symbolic traceback support for IA64/VMS
with Ada.Exceptions.Traceback; use Ada.Exceptions.Traceback;
-with Interfaces.C;
with System;
with System.Aux_DEC;
with System.Soft_Links;
pragma Warnings (Off);
pragma Linker_Options ("--for-linker=sys$library:trace.exe");
- use Interfaces.C;
use System;
use System.Aux_DEC;
use System.Traceback_Entries;
- subtype User_Arg_Type is Unsigned_Longword;
- subtype Cond_Value_Type is Unsigned_Longword;
+ subtype Var_String_Buf is String (1 .. 254);
- type ASCIC is record
- Count : unsigned_char;
- Data : char_array (1 .. 255);
+ type Var_String is record
+ Curlen : Unsigned_Word := 0;
+ Buf : Var_String_Buf;
end record;
- pragma Convention (C, ASCIC);
-
- for ASCIC use record
- Count at 0 range 0 .. 7;
- Data at 1 range 0 .. 8 * 255 - 1;
+ pragma Convention (C, Var_String);
+ for Var_String'Size use 8 * 256;
+
+ type Descriptor64 is record
+ Mbo : Unsigned_Word;
+ Dtype : Unsigned_Byte;
+ Class : Unsigned_Byte;
+ Mbmo : Unsigned_Longword;
+ Maxstrlen : Integer_64;
+ Pointer : Address;
end record;
- for ASCIC'Size use 8 * 256;
-
- function Fetch_ASCIC is new Fetch_From_Address (ASCIC);
-
- procedure Symbolize
- (Status : out Cond_Value_Type;
- Current_PC : Address;
- Filename_Name : out Address;
- Library_Name : out Address;
- Record_Number : out Integer;
- Image_Name : out Address;
- Module_Name : out Address;
- Routine_Name : out Address;
- Line_Number : out Integer;
- Relative_PC : out Address);
-
- pragma Interface (External, Symbolize);
-
- pragma Import_Valued_Procedure
- (Symbolize, "TBK$I64_SYMBOLIZE",
- (Cond_Value_Type, Address,
- Address, Address, Integer,
- Address, Address, Address, Integer,
- Address),
- (Value, Value,
- Reference, Reference, Reference,
- Reference, Reference, Reference, Reference,
- Reference));
+ pragma Convention (C, Descriptor64);
+
+ subtype Cond_Value_Type is Unsigned_Longword;
+
+ function Symbolize
+ (Current_PC : Address;
+ Filename_Dsc : Address;
+ Library_Dsc : Address;
+ Record_Number : Address;
+ Image_Dsc : Address;
+ Module_Dsc : Address;
+ Routine_Dsc : Address;
+ Line_Number : Address;
+ Relative_PC : Address) return Cond_Value_Type;
+ pragma Import (C, Symbolize, "TBK$I64_SYMBOLIZE");
function Decode_Ada_Name (Encoded_Name : String) return String;
-- Decodes an Ada identifier name. Removes leading "_ada_" and trailing
-- __{DIGIT}+ or ${DIGIT}+, converts other "__" to '.'
+ procedure Setup_Descriptor64_Vs (Desc : out Descriptor64; Var : Address);
+ -- Setup descriptor Desc for address Var
+
---------------------
-- Decode_Ada_Name --
---------------------
case Encoded_Name (J) is
when '0' .. '9' =>
null;
+
when '$' =>
Last := J - 1;
exit;
+
when '_' =>
if Encoded_Name (J - 1) = '_' then
Last := J - 2;
end if;
exit;
+
when others =>
exit;
end case;
then
Decoded_Name (DPos) := '.';
Pos := Pos + 2;
-
else
Decoded_Name (DPos) := Encoded_Name (Pos);
Pos := Pos + 1;
return Decoded_Name (1 .. DPos - 1);
end Decode_Ada_Name;
+ ---------------------------
+ -- Setup_Descriptor64_Vs --
+ ---------------------------
+
+ procedure Setup_Descriptor64_Vs (Desc : out Descriptor64; Var : Address) is
+ K_Dtype_Vt : constant Unsigned_Byte := 37;
+ K_Class_Vs : constant Unsigned_Byte := 11;
+ begin
+ Desc.Mbo := 1;
+ Desc.Dtype := K_Dtype_Vt;
+ Desc.Class := K_Class_Vs;
+ Desc.Mbmo := -1;
+ Desc.Maxstrlen := Integer_64 (Var_String_Buf'Length);
+ Desc.Pointer := Var;
+ end Setup_Descriptor64_Vs;
+
------------------------
-- Symbolic_Traceback --
------------------------
function Symbolic_Traceback (Traceback : Tracebacks_Array) return String is
- Status : Cond_Value_Type;
- Filename_Name_Addr : Address;
- Library_Name_Addr : Address;
- Record_Number : Integer;
- Image_Name : ASCIC;
- Image_Name_Addr : Address;
- Module_Name : ASCIC;
- Module_Name_Addr : Address;
- Routine_Name : ASCIC;
- Routine_Name_Addr : Address;
- Line_Number : Integer;
- Relative_PC : Address;
- Res : String (1 .. 256 * Traceback'Length);
- Len : Integer;
+ Status : Cond_Value_Type;
+ Filename_Name : Var_String;
+ Filename_Dsc : Descriptor64;
+ Library_Name : Var_String;
+ Library_Dsc : Descriptor64;
+ Record_Number : Integer_64;
+ Image_Name : Var_String;
+ Image_Dsc : Descriptor64;
+ Module_Name : Var_String;
+ Module_Dsc : Descriptor64;
+ Routine_Name : Var_String;
+ Routine_Dsc : Descriptor64;
+ Line_Number : Integer_64;
+ Relative_PC : Integer_64;
+ Res : String (1 .. 256 * Traceback'Length);
+ Len : Integer;
begin
- if Traceback'Length > 0 then
- Len := 0;
-
- -- Since image computation is not thread-safe we need task lockout
-
- System.Soft_Links.Lock_Task.all;
-
- for J in Traceback'Range loop
-
- Symbolize
- (Status,
- PC_For (Traceback (J)),
- Filename_Name_Addr,
- Library_Name_Addr,
- Record_Number,
- Image_Name_Addr,
- Module_Name_Addr,
- Routine_Name_Addr,
- Line_Number,
- Relative_PC);
-
- Image_Name := Fetch_ASCIC (Image_Name_Addr);
- Module_Name := Fetch_ASCIC (Module_Name_Addr);
- Routine_Name := Fetch_ASCIC (Routine_Name_Addr);
-
- declare
- First : Integer := Len + 1;
- Last : Integer := First + 80 - 1;
- Pos : Integer;
- Routine_Name_D : String := Decode_Ada_Name
- (To_Ada
- (Routine_Name.Data (1 .. size_t (Routine_Name.Count)),
- False));
-
- begin
- Res (First .. Last) := (others => ' ');
-
- Res (First .. First + Integer (Image_Name.Count) - 1) :=
- To_Ada
- (Image_Name.Data (1 .. size_t (Image_Name.Count)),
- False);
-
- Res (First + 10 ..
- First + 10 + Integer (Module_Name.Count) - 1) :=
- To_Ada
- (Module_Name.Data (1 .. size_t (Module_Name.Count)),
- False);
-
- Res (First + 30 ..
- First + 30 + Routine_Name_D'Length - 1) :=
- Routine_Name_D;
-
- -- If routine name doesn't fit 20 characters, output
- -- the line number on next line at 50th position
-
- if Routine_Name_D'Length > 20 then
- Pos := First + 30 + Routine_Name_D'Length;
- Res (Pos) := ASCII.LF;
- Last := Pos + 80;
- Res (Pos + 1 .. Last) := (others => ' ');
- Pos := Pos + 51;
- else
- Pos := First + 50;
- end if;
-
- Res (Pos .. Pos + Integer'Image (Line_Number)'Length - 1) :=
- Integer'Image (Line_Number);
-
- Res (Last) := ASCII.LF;
- Len := Last;
- end;
- end loop;
-
- System.Soft_Links.Unlock_Task.all;
- return Res (1 .. Len);
-
- else
+ if Traceback'Length = 0 then
return "";
end if;
+
+ Len := 0;
+
+ -- Since image computation is not thread-safe we need task lockout
+
+ System.Soft_Links.Lock_Task.all;
+
+ Setup_Descriptor64_Vs (Filename_Dsc, Filename_Name'Address);
+ Setup_Descriptor64_Vs (Library_Dsc, Library_Name'Address);
+ Setup_Descriptor64_Vs (Image_Dsc, Image_Name'Address);
+ Setup_Descriptor64_Vs (Module_Dsc, Module_Name'Address);
+ Setup_Descriptor64_Vs (Routine_Dsc, Routine_Name'Address);
+
+ for J in Traceback'Range loop
+ Status := Symbolize
+ (PC_For (Traceback (J)),
+ Filename_Dsc'Address,
+ Library_Dsc'Address,
+ Record_Number'Address,
+ Image_Dsc'Address,
+ Module_Dsc'Address,
+ Routine_Dsc'Address,
+ Line_Number'Address,
+ Relative_PC'Address);
+
+ declare
+ First : Integer := Len + 1;
+ Last : Integer := First + 80 - 1;
+ Pos : Integer;
+
+ Routine_Name_D : String :=
+ Decode_Ada_Name
+ (Routine_Name.Buf
+ (1 .. Natural (Routine_Name.Curlen)));
+
+ begin
+ Res (First .. Last) := (others => ' ');
+
+ Res (First .. First + Natural (Image_Name.Curlen) - 1) :=
+ Image_Name.Buf (1 .. Natural (Image_Name.Curlen));
+
+ Res (First + 10 ..
+ First + 10 + Natural (Module_Name.Curlen) - 1) :=
+ Module_Name.Buf (1 .. Natural (Module_Name.Curlen));
+
+ Res (First + 30 ..
+ First + 30 + Routine_Name_D'Length - 1) :=
+ Routine_Name_D;
+
+ -- If routine name doesn't fit 20 characters, output
+ -- the line number on next line at 50th position
+
+ if Routine_Name_D'Length > 20 then
+ Pos := First + 30 + Routine_Name_D'Length;
+ Res (Pos) := ASCII.LF;
+ Last := Pos + 80;
+ Res (Pos + 1 .. Last) := (others => ' ');
+ Pos := Pos + 51;
+ else
+ Pos := First + 50;
+ end if;
+
+ Res (Pos ..
+ Pos + Integer_64'Image (Line_Number)'Length - 1) :=
+ Integer_64'Image (Line_Number);
+
+ Res (Last) := ASCII.LF;
+ Len := Last;
+ end;
+ end loop;
+
+ System.Soft_Links.Unlock_Task.all;
+ return Res (1 .. Len);
end Symbolic_Traceback;
function Symbolic_Traceback (E : Exception_Occurrence) return String is
--- /dev/null
+/****************************************************************************
+ * *
+ * GNAT COMPILER COMPONENTS *
+ * *
+ * T R A C E B A C K - I t a n i u m / V M S *
+ * *
+ * C Implementation File *
+ * *
+ * Copyright (C) 2007, AdaCore *
+ * *
+ * GNAT is free software; you can redistribute it and/or modify it under *
+ * terms of the GNU General Public License as published by the Free Soft- *
+ * ware Foundation; either version 2, or (at your option) any later ver- *
+ * sion. GNAT is distributed in the hope that it will be useful, but WITH- *
+ * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License *
+ * for more details. You should have received a copy of the GNU General *
+ * Public License distributed with GNAT; see file COPYING. If not, write *
+ * to the Free Software Foundation, 51 Franklin Street, Fifth Floor, *
+ * Boston, MA 02110-1301, USA. *
+ * *
+ * As a special exception, if you link this file with other files to *
+ * produce an executable, this file does not by itself cause the resulting *
+ * executable to be covered by the GNU General Public License. This except- *
+ * ion does not however invalidate any other reasons why the executable *
+ * file might be covered by the GNU Public License. *
+ * *
+ * GNAT was originally developed by the GNAT team at New York University. *
+ * Extensive contributions were provided by Ada Core Technologies Inc. *
+ * *
+ ****************************************************************************/
+
+/* Itanium Open/VMS implementation of backtrace. Use ICB (Invocation
+ Context Block) routines. */
+#include <stdlib.h>
+#include <vms/libicb.h>
+
+/* Declare libicb routines. */
+extern INVO_CONTEXT_BLK *LIB$I64_CREATE_INVO_CONTEXT (void *(*)(size_t),
+ void (*)(void *),
+ int);
+extern void LIB$I64_FREE_INVO_CONTEXT (INVO_CONTEXT_BLK *);
+extern int LIB$I64_GET_CURR_INVO_CONTEXT(INVO_CONTEXT_BLK *);
+extern int LIB$I64_GET_PREV_INVO_CONTEXT(INVO_CONTEXT_BLK *);
+
+/* Gcc internal headers poison malloc. So use xmalloc() when building the
+ compiler. */
+#ifdef IN_RTS
+#define BT_MALLOC malloc
+#else
+#define BT_MALLOC xmalloc
+#endif
+
+int
+__gnat_backtrace (void **array, int size,
+ void *exclude_min, void *exclude_max, int skip_frames)
+{
+ INVO_CONTEXT_BLK *ctxt;
+ int res = 0;
+ int n = 0;
+
+ /* Create the context. */
+ ctxt = LIB$I64_CREATE_INVO_CONTEXT (BT_MALLOC, free, 0);
+ if (ctxt == NULL)
+ return 0;
+
+ LIB$I64_GET_CURR_INVO_CONTEXT (ctxt);
+
+ while (1)
+ {
+ void *pc = (void *)ctxt->libicb$ih_pc;
+ if (pc == (void *)0)
+ break;
+ if (ctxt->libicb$v_bottom_of_stack)
+ break;
+ if (n >= skip_frames && (pc < exclude_min || pc > exclude_max))
+ {
+ array[res++] = (void *)(ctxt->libicb$ih_pc);
+ if (res == size)
+ break;
+ }
+ n++;
+ LIB$I64_GET_PREV_INVO_CONTEXT (ctxt);
+ }
+
+ /* Free the context. */
+ LIB$I64_FREE_INVO_CONTEXT (ctxt);
+ return res;
+}
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