From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/ada/g-traceb.ads | 103 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 gcc/ada/g-traceb.ads (limited to 'gcc/ada/g-traceb.ads') diff --git a/gcc/ada/g-traceb.ads b/gcc/ada/g-traceb.ads new file mode 100644 index 000000000..d9f304054 --- /dev/null +++ b/gcc/ada/g-traceb.ads @@ -0,0 +1,103 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- G N A T . T R A C E B A C K -- +-- -- +-- S p e c -- +-- -- +-- 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 non-symbolic traceback support + +-- This package provides a method for generating a traceback of the +-- current execution location. The traceback shows the locations of +-- calls in the call chain, up to either the top or a designated +-- number of levels. + +-- The traceback information is in the form of absolute code locations. +-- These code locations may be converted to corresponding source locations +-- using the external addr2line utility, or from within GDB. + +-- In order to use this facility, in some cases the binder must be invoked +-- with -E switch (store the backtrace with exception occurrence). Please +-- refer to gnatbind documentation for more information. + +-- To analyze the code locations later using addr2line or gdb, the necessary +-- units must be compiled with the debugging switch -g in the usual manner. +-- Note that it is not necessary to compile with -g to use Call_Chain. In +-- other words, the following sequence of steps can be used: + +-- Compile without -g +-- Run the program, and call Call_Chain +-- Recompile with -g +-- Use addr2line to interpret the absolute call locations (note that +-- addr2line expects addresses in hexadecimal format). + +-- This capability is currently supported on the following targets: + +-- AiX PowerPC +-- HP-UX +-- GNU/Linux x86 +-- Irix MIPS +-- LynxOS x86 +-- Solaris x86 +-- Solaris sparc +-- Tru64 alpha +-- OpenVMS/Alpha +-- OpenVMS/ia64 +-- VxWorks PowerPC +-- VxWorks x86 +-- Windows NT/XP + +-- Note: see also GNAT.Traceback.Symbolic, a child unit in file g-trasym.ads +-- providing symbolic trace back capability for a subset of the above targets. + +with System; +with Ada.Exceptions.Traceback; + +package GNAT.Traceback is + pragma Elaborate_Body; + + subtype Code_Loc is System.Address; + -- Code location used in building tracebacks + + subtype Tracebacks_Array is Ada.Exceptions.Traceback.Tracebacks_Array; + -- Traceback array used to hold a generated traceback list + + ---------------- + -- Call_Chain -- + ---------------- + + procedure Call_Chain (Traceback : out Tracebacks_Array; Len : out Natural); + -- Store up to Traceback'Length tracebacks corresponding to the current + -- call chain. The first entry stored corresponds to the deepest level + -- of subprogram calls. Len shows the number of traceback entries stored. + -- It will be equal to Traceback'Length unless the entire traceback is + -- shorter, in which case positions in Traceback past the Len position + -- are undefined on return. + +end GNAT.Traceback; -- cgit v1.2.3