-- --
-- B o d y --
-- --
--- Copyright (C) 2005, Free Software Foundation, Inc. --
+-- Copyright (C) 2005-2010, 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- --
--- ware Foundation; either version 2, or (at your option) any later ver- --
+-- ware Foundation; either version 3, 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. --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- 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;
package body GNAT.Traceback.Symbolic is
- 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);
+ 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;
+ pragma Convention (C, Descriptor64);
+
+ subtype Cond_Value_Type is Unsigned_Longword;
- for ASCIC use record
- Count at 0 range 0 .. 7;
- Data at 1 range 0 .. 8 * 255 - 1;
+ -- TBK_API_PARAM as defined in TBKDEF
+
+ type Tbk_Api_Param is record
+ Length : Unsigned_Word;
+ T_Type : Unsigned_Byte;
+ Version : Unsigned_Byte;
+ Reserveda : Unsigned_Longword;
+ Faulting_Pc : Address;
+ Faulting_Fp : Address;
+ Filename_Desc : Address;
+ Library_Module_Desc : Address;
+ Record_Number : Address;
+ Image_Desc : Address;
+ Module_Desc : Address;
+ Routine_Desc : Address;
+ Listing_Lineno : Address;
+ Rel_Pc : Address;
+ Image_Base_Addr : Address;
+ Module_Base_Addr : Address;
+ Malloc_Rtn : Address;
+ Free_Rtn : Address;
+ Symbolize_Flags : Address;
+ Reserved0 : Unsigned_Quadword;
+ Reserved1 : Unsigned_Quadword;
+ Reserved2 : Unsigned_Quadword;
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 : in 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, Tbk_Api_Param);
+
+ K_Version : constant Unsigned_Byte := 1;
+ -- Current API version
+
+ K_Length : constant Unsigned_Word := 152;
+ -- Length of the parameter
+
+ pragma Compile_Time_Error (Tbk_Api_Param'Size = K_Length * 8,
+ "Bad length for tbk_api_param");
+ -- Sanity check
+
+ function Symbolize (Param : 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;
+ Param : Tbk_Api_Param;
+ Status : Cond_Value_Type;
+ Record_Number : Unsigned_Longword;
+ Image_Name : Var_String;
+ Image_Dsc : Descriptor64;
+ Module_Name : Var_String;
+ Module_Dsc : Descriptor64;
+ Routine_Name : Var_String;
+ Routine_Dsc : Descriptor64;
+ Line_Number : Unsigned_Longword;
+ Res : String (1 .. 256 * Traceback'Length);
+ Len : Integer;
begin
- if Traceback'Length > 0 then
- Len := 0;
+ if Traceback'Length = 0 then
+ return "";
+ end if;
- -- Since image computation is not thread-safe we need task lockout
+ Len := 0;
- System.Soft_Links.Lock_Task.all;
+ -- Since image computation is not thread-safe we need task lockout
- for J in Traceback'Range loop
+ System.Soft_Links.Lock_Task.all;
- 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);
+ -- Initialize descriptors
- Image_Name := Fetch_ASCIC (Image_Name_Addr);
- Module_Name := Fetch_ASCIC (Module_Name_Addr);
- Routine_Name := Fetch_ASCIC (Routine_Name_Addr);
+ 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
+ -- Initialize fields in case they are not written
+
+ Record_Number := 0;
+ Line_Number := 0;
+ Image_Name.Curlen := 0;
+ Module_Name.Curlen := 0;
+ Routine_Name.Curlen := 0;
+
+ -- Symbolize
+
+ Param := (Length => K_Length,
+ T_Type => 0,
+ Version => K_Version,
+ Reserveda => 0,
+ Faulting_Pc => PC_For (Traceback (J)),
+ Faulting_Fp => 0,
+ Filename_Desc => Null_Address,
+ Library_Module_Desc => Null_Address,
+ Record_Number => Record_Number'Address,
+ Image_Desc => Image_Dsc'Address,
+ Module_Desc => Module_Dsc'Address,
+ Routine_Desc => Routine_Dsc'Address,
+ Listing_Lineno => Line_Number'Address,
+ Rel_Pc => Null_Address,
+ Image_Base_Addr => Null_Address,
+ Module_Base_Addr => Null_Address,
+ Malloc_Rtn => Null_Address,
+ Free_Rtn => Null_Address,
+ Symbolize_Flags => Null_Address,
+ Reserved0 => (0, 0),
+ Reserved1 => (0, 0),
+ Reserved2 => (0, 0));
+
+ Status := Symbolize (Param'Address);
+
+ -- Check for success (marked by bit 0)
+
+ if (Status rem 2) = 1 then
+
+ -- Success
+
+ if Line_Number = 0 then
+
+ -- As GCC doesn't emit source file correlation, use record
+ -- number of line number is not set
+
+ Line_Number := Record_Number;
+ end if;
declare
- First : Integer := Len + 1;
+ First : constant 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));
+
+ Routine_Name_D : constant String :=
+ Decode_Ada_Name
+ (Routine_Name.Buf
+ (1 .. Natural (Routine_Name.Curlen)));
+
+ Lineno : constant String :=
+ Unsigned_Longword'Image (Line_Number);
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 .. First + Natural (Image_Name.Curlen) - 1) :=
+ Image_Name.Buf (1 .. Natural (Image_Name.Curlen));
Res (First + 10 ..
- First + 10 + Integer (Module_Name.Count) - 1) :=
- To_Ada
- (Module_Name.Data (1 .. size_t (Module_Name.Count)),
- False);
+ 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) :=
+ 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 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;
Pos := First + 50;
end if;
- Res (Pos .. Pos + Integer'Image (Line_Number)'Length - 1) :=
- Integer'Image (Line_Number);
+ Res (Pos .. Pos + Lineno'Length - 1) := Lineno;
Res (Last) := ASCII.LF;
Len := Last;
end;
- end loop;
- System.Soft_Links.Unlock_Task.all;
- return Res (1 .. Len);
+ -- Failure (bit 0 clear)
- else
- return "";
- end if;
+ else
+ Res (Len + 1 .. Len + 6) := "ERROR" & ASCII.LF;
+ Len := Len + 6;
+ end if;
+ end loop;
+
+ System.Soft_Links.Unlock_Task.all;
+ return Res (1 .. Len);
end Symbolic_Traceback;
function Symbolic_Traceback (E : Exception_Occurrence) return String is
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