-- --
-- B o d y --
-- --
--- Copyright (C) 2005-2009, 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- --
package body GNAT.Traceback.Symbolic is
- pragma Warnings (Off); -- ??? needs comment
- pragma Linker_Options ("--for-linker=sys$library:trace.exe");
-
use System;
use System.Aux_DEC;
use System.Traceback_Entries;
subtype Cond_Value_Type is Unsigned_Longword;
- function Symbolize
- (Current_PC : Address;
- Filename_Dsc : Address;
- Library_Dsc : Address;
- Record_Number : Address;
- Image_Dsc : Address;
- Module_Dsc : Address;
- Routine_Dsc : Address;
- Line_Number : Address;
- Relative_PC : Address) return Cond_Value_Type;
+ -- TBK_API_PARAM as defined in TBKDEF
+
+ type Tbk_Api_Param is record
+ Length : Unsigned_Word;
+ T_Type : Unsigned_Byte;
+ Version : Unsigned_Byte;
+ Reserveda : Unsigned_Longword;
+ Faulting_Pc : Address;
+ Faulting_Fp : Address;
+ Filename_Desc : Address;
+ Library_Module_Desc : Address;
+ Record_Number : Address;
+ Image_Desc : Address;
+ Module_Desc : Address;
+ Routine_Desc : Address;
+ Listing_Lineno : Address;
+ Rel_Pc : Address;
+ Image_Base_Addr : Address;
+ Module_Base_Addr : Address;
+ Malloc_Rtn : Address;
+ Free_Rtn : Address;
+ Symbolize_Flags : Address;
+ Reserved0 : Unsigned_Quadword;
+ Reserved1 : Unsigned_Quadword;
+ Reserved2 : Unsigned_Quadword;
+ end record;
+ pragma Convention (C, Tbk_Api_Param);
+
+ K_Version : constant Unsigned_Byte := 1;
+ -- Current API version
+
+ K_Length : constant Unsigned_Word := 152;
+ -- Length of the parameter
+
+ pragma Compile_Time_Error (Tbk_Api_Param'Size = K_Length * 8,
+ "Bad length for tbk_api_param");
+ -- Sanity check
+
+ function Symbolize (Param : Address) return Cond_Value_Type;
pragma Import (C, Symbolize, "TBK$I64_SYMBOLIZE");
function Decode_Ada_Name (Encoded_Name : String) return String;
------------------------
function Symbolic_Traceback (Traceback : Tracebacks_Array) return String is
+ Param : Tbk_Api_Param;
Status : Cond_Value_Type;
- Filename_Name : Var_String;
- Filename_Dsc : Descriptor64;
- Library_Name : Var_String;
- Library_Dsc : Descriptor64;
- Record_Number : Integer_64;
+ 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 : Integer_64;
- Relative_PC : Integer_64;
+ Line_Number : Unsigned_Longword;
Res : String (1 .. 256 * Traceback'Length);
Len : Integer;
System.Soft_Links.Lock_Task.all;
- Setup_Descriptor64_Vs (Filename_Dsc, Filename_Name'Address);
- Setup_Descriptor64_Vs (Library_Dsc, Library_Name'Address);
+ -- Initialize descriptors
+
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;
+ -- 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;
- Res (Pos ..
- Pos + Integer_64'Image (Line_Number)'Length - 1) :=
- Integer_64'Image (Line_Number);
+ declare
+ First : constant Integer := Len + 1;
+ Last : Integer := First + 80 - 1;
+ Pos : Integer;
+
+ 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 (Last) := ASCII.LF;
- Len := Last;
- end;
+ 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 + Lineno'Length - 1) := Lineno;
+
+ Res (Last) := ASCII.LF;
+ Len := Last;
+ end;
+
+ -- Failure (bit 0 clear)
+
+ else
+ Res (Len + 1 .. Len + 6) := "ERROR" & ASCII.LF;
+ Len := Len + 6;
+ end if;
end loop;
System.Soft_Links.Unlock_Task.all;
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