diff options
Diffstat (limited to 'gcc-4.4.3/gcc/ada/g-trasym.adb')
| -rw-r--r-- | gcc-4.4.3/gcc/ada/g-trasym.adb | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/gcc-4.4.3/gcc/ada/g-trasym.adb b/gcc-4.4.3/gcc/ada/g-trasym.adb deleted file mode 100644 index 917e47855..000000000 --- a/gcc-4.4.3/gcc/ada/g-trasym.adb +++ /dev/null @@ -1,152 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT RUN-TIME COMPONENTS -- --- -- --- G N A T . T R A C E B A C K . S Y M B O L I C -- --- -- --- B o d y -- --- -- --- Copyright (C) 1999-2008, 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 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. -- --- -- --- 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 - -with System.Soft_Links; -with Ada.Exceptions.Traceback; use Ada.Exceptions.Traceback; - -package body GNAT.Traceback.Symbolic is - - pragma Linker_Options ("-laddr2line"); - pragma Linker_Options ("-lbfd"); - pragma Linker_Options ("-liberty"); - - package TSL renames System.Soft_Links; - - -- To perform the raw addresses to symbolic form translation we rely on a - -- libaddr2line symbolizer which examines debug info from a provided - -- executable file name, and an absolute path is needed to ensure the file - -- is always found. This is "__gnat_locate_exec_on_path (gnat_argv [0])" - -- for our executable file, a fairly heavy operation so we cache the - -- result. - - Exename : System.Address; - -- Pointer to the name of the executable file to be used on all - -- invocations of the libaddr2line symbolization service. - - Exename_Resolved : Boolean := False; - -- Flag to indicate whether we have performed the executable file name - -- resolution already. Relying on a not null Exename for this purpose - -- would be potentially inefficient as this is what we will get if the - -- resolution attempt fails. - - ------------------------ - -- Symbolic_Traceback -- - ------------------------ - - function Symbolic_Traceback (Traceback : Tracebacks_Array) return String is - - procedure convert_addresses - (filename : System.Address; - addrs : System.Address; - n_addrs : Integer; - buf : System.Address; - len : System.Address); - pragma Import (C, convert_addresses, "convert_addresses"); - -- This is the procedure version of the Ada aware addr2line. It places - -- in BUF a string representing the symbolic translation of the N_ADDRS - -- raw addresses provided in ADDRS, looked up in debug information from - -- FILENAME. LEN is filled with the result length. - -- - -- This procedure is provided by libaddr2line on targets that support - -- it. A dummy version is in adaint.c for other targets so that build - -- of shared libraries doesn't generate unresolved symbols. - -- - -- Note that this procedure is *not* thread-safe. - - type Argv_Array is array (0 .. 0) of System.Address; - gnat_argv : access Argv_Array; - pragma Import (C, gnat_argv, "gnat_argv"); - - function locate_exec_on_path - (c_exename : System.Address) return System.Address; - pragma Import (C, locate_exec_on_path, "__gnat_locate_exec_on_path"); - - Res : String (1 .. 256 * Traceback'Length); - Len : Integer; - - use type System.Address; - - begin - -- The symbolic translation of an empty set of addresses is the - -- the empty string. - - if Traceback'Length = 0 then - return ""; - end if; - - -- If our input set of raw addresses is not empty, resort to the - -- libaddr2line service to symbolize it all. - - -- Compute, cache and provide the absolute path to our executable file - -- name as the binary file where the relevant debug information is to - -- be found. If the executable file name resolution fails, we have no - -- sensible basis to invoke the symbolizer at all. - - -- Protect all this against concurrent accesses explicitly, as the - -- underlying services are potentially thread unsafe. - - TSL.Lock_Task.all; - - if not Exename_Resolved then - Exename := locate_exec_on_path (gnat_argv (0)); - Exename_Resolved := True; - end if; - - if Exename /= System.Null_Address then - convert_addresses - (Exename, Traceback'Address, Traceback'Length, - Res (1)'Address, Len'Address); - end if; - - TSL.Unlock_Task.all; - - -- Return what the addr2line symbolizer has produced if we have called - -- it (the executable name resolution succeeded), or an empty string - -- otherwise. - - if Exename /= System.Null_Address then - return Res (1 .. Len); - else - return ""; - end if; - - end Symbolic_Traceback; - - function Symbolic_Traceback (E : Exception_Occurrence) return String is - begin - return Symbolic_Traceback (Tracebacks (E)); - end Symbolic_Traceback; - -end GNAT.Traceback.Symbolic; |