-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2008, Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2010, 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. --
-- dJ Output debugging trace info for JGNAT (Java VM version of GNAT)
-- dK Kill all error messages
-- dL Output trace information on elaboration checking
- -- dM Asssume all variables are modified (no current values)
+ -- dM Assume all variables are modified (no current values)
-- dN No file name information in exception messages
-- dO Output immediate error messages
-- dP Do not check for controlled objects in preelaborable packages
-- dU Enable garbage collection of unreachable entities
-- dV Enable viewing of all symbols in debugger
-- dW Disable warnings on calls for IN OUT parameters
- -- dX
+ -- dX Display messages on reads of potentially uninitialized scalars
-- dY Enable configurable run-time mode
-- dZ Generate listing showing the contents of the dispatch tables
- -- d.a Enable alignment promotion for non-scalar stand-alone objects
+ -- d.a Force Target_Strict_Alignment mode to True
-- d.b
- -- d.c
+ -- d.c Generate inline concatenation, do not call procedure
-- d.d
-- d.e
-- d.f Inhibit folding of static expressions
-- d.g Enable conversion of raise into goto
-- d.h
- -- d.i
+ -- d.i Ignore Warnings pragmas
-- d.j
-- d.k
-- d.l Use Ada 95 semantics for limited function returns
-- d.m For -gnatl, print full source only for main unit
- -- d.n
- -- d.o
- -- d.p
+ -- d.n Print source file names
+ -- d.o Generate .NET listing of CIL code
+ -- d.p Enable the .NET CIL verifier
-- d.q
-- d.r Enable OK_To_Reorder_Components in non-variant records
-- d.s Disable expansion of slice move, use memmove
-- d.t Disable static allocation of library level dispatch tables
-- d.u
-- d.v Enable OK_To_Reorder_Components in variant records
- -- d.w Do not check for infinite while loops
+ -- d.w Do not check for infinite loops
-- d.x No exception handlers
-- d.y
-- d.z
- -- d.A
+ -- d.A Read/write Aspect_Specifications hash table to tree
-- d.B
- -- d.C
+ -- d.C Generate concatenation call, do not generate inline code
-- d.D
-- d.E
-- d.F
-- d.G
-- d.H
- -- d.I Inspector mode
- -- d.J
+ -- d.I SCIL generation mode
+ -- d.J Disable parallel SCIL generation mode
-- d.K
- -- d.L
+ -- d.L Depend on back end for limited types in conditional expressions
-- d.M
-- d.N
- -- d.O
+ -- d.O Dump internal SCO tables
-- d.P
-- d.Q
-- d.R
-- d.T Force Optimize_Alignment (Time)
-- d.U
-- d.V
- -- d.W
- -- d.X
- -- d.Y
+ -- d.W Print out debugging information for Walk_Library_Items
+ -- d.X Use Expression_With_Actions
+ -- d.Y Do not use Expression_With_Actions
-- d.Z
-- d1 Error msgs have node numbers where possible
-- dc
-- dd
-- de
- -- df
+ -- df Only output file names, not path names, in log
-- dg
-- dh
-- di
-- dj
-- dk
-- dl
- -- dm
+ -- dm Display the number of maximum simultaneous compilations
-- dn Do not delete temp files created by gnatmake
-- do
-- dp Prints the contents of the Q used by Make.Compile_Sources
-- list header is allocated, a line of output is generated. Certain
-- other basic tree operations also cause a line of output to be
-- generated. This option is useful in seeing where the parser is
- -- blowing up.;
+ -- blowing up.
-- do Print the source recreated from the generated tree. In the case
-- where the tree has been rewritten, this output includes only the
-- in preelaborable packages, but this restriction is a huge pain,
-- especially in the predefined library units.
- -- dQ needs full documentation ???
-
-- dR Bypass the check for a proper version of s-rpc being present
-- to use the -gnatz? switch. This allows debugging of the use
-- of stubs generation without needing to have GLADE (or some
-- - In case of abstract subprograms the text "is abstract" is
-- added at the end of the line.
- -- d.a Enable alignment promotion for non-VMS targets. On VMS, by default
- -- (in Optimize_Alignment (Off) mode), the alignment of stand-alone
- -- objects is increased in some cases to enable the generation of
- -- better code. Use of this debug flag enables this transformation
- -- on non-VMS targets.
+ -- d.a Force Target_Strict_Alignment to True, even on targets where it
+ -- would normally be false. Can be used for testing strict alignment
+ -- circuitry in the compiler.
+
+ -- d.c Generate inline concatenation, instead of calling one of the
+ -- System.Concat_n.Str_Concat_n routines in cases where the latter
+ -- routines would normally be called.
-- d.f Suppress folding of static expressions. This of course results
-- in seriously non-conforming behavior, but is useful sometimes
-- this if this debug flag is set. Later we will enable this more
-- generally by default.
+ -- d.i Ignore all occurrences of pragma Warnings in the sources. This can
+ -- be used in particular to disable Warnings (Off) to check if any of
+ -- these statements are inappropriate.
+
-- d.l Use Ada 95 semantics for limited function returns. This may be
-- used to work around the incompatibility introduced by AI-318-2.
-- It is useful only in -gnat05 mode.
-- main source (this corresponds to a previous behavior of -gnatl and
-- is used for running the ACATS tests).
+ -- d.n Print source file names as they are loaded. This is useful if the
+ -- compiler has a bug -- these are the files that need to be included
+ -- in a bug report.
+
+ -- d.o Generate listing showing the IL instructions generated by the .NET
+ -- compiler for each subprogram.
+
+ -- d.p Enable the .NET CIL verifier. During development the verifier is
+ -- disabled by default and this flag is used to enable it. In the
+ -- future we will reverse this functionality.
+
-- d.r Forces the flag OK_To_Reorder_Components to be set in all record
-- base types that have no discriminants.
-- d.v Forces the flag OK_To_Reorder_Components to be set in all record
-- base types that have at least one discriminant (v = variant).
- -- d.w This flag turns off the scanning of while loops to detect possible
+ -- d.w This flag turns off the scanning of loops to detect possible
-- infinite loops.
+ -- d.A There seems to be a problem with ASIS if we activate the circuit
+ -- for reading and writing the aspect specification hash table, so
+ -- for now, this is controlled by the debug flag d.A. The hash table
+ -- is only written and read if this flag is set.
+
-- d.x No exception handlers in generated code. This causes exception
-- handlers to be eliminated from the generated code. They are still
-- fully compiled and analyzed, they just get eliminated from the
-- code generation step.
- -- d.I Inspector mode. Relevant for VM_Target /= None. Try to generate
- -- byte code, even in case of unsupported construct, for the sake
- -- of static analysis tools.
+ -- d.C Generate call to System.Concat_n.Str_Concat_n routines in cases
+ -- where we would normally generate inline concatenation code.
+
+ -- d.I Generate SCIL mode. Generate intermediate code for the sake of
+ -- of static analysis tools, and ensure additional tree consistency
+ -- between different compilations of specs.
+
+ -- d.J Disable parallel SCIL generation. Normally SCIL file generation is
+ -- done in parallel to speed processing. This switch disables this
+ -- behavior.
+
+ -- d.L Normally the front end generates special expansion for conditional
+ -- expressions of a limited type. This debug flag removes this special
+ -- case expansion, leaving it up to the back end to handle conditional
+ -- expressions correctly.
+
+ -- d.O Dump internal SCO tables. Before outputting the SCO information to
+ -- the ALI file, the internal SCO tables (SCO_Table/SCO_Unit_Table)
+ -- are dumped for debugging purposes.
-- d.S Force Optimize_Alignment (Space) mode as the default
-- d.T Force Optimize_Alignment (Time) mode as the default
+ -- d.W Print out debugging information for Walk_Library_Items, including
+ -- the order in which units are walked. This is primarily for use in
+ -- debugging CodePeer mode.
+
+ -- d.X By default, the compiler uses an elaborate rewriting framework for
+ -- short-circuited forms where the right hand condition generates
+ -- actions to be inserted. With the gcc backend, we now use the new
+ -- N_Expression_With_Actions node for this expansion, but we still use
+ -- the old method for other backends and in SCIL mode. This debug flag
+ -- forces use of the new N_Expression_With_Actions node in these other
+ -- cases and is intended for transitional use.
+
+ -- d.Y Prevents the use of the N_Expression_With_Actions node even in the
+ -- case of the gcc back end. Provided as a back up in case the new
+ -- scheme has problems.
+
-- d1 Error messages have node numbers where possible. Normally error
-- messages have only source locations. This option is useful when
-- debugging errors caused by expanded code, where the source location
-- be listed, and is useful when diagnosing circularities introduced
-- by incorrect changes to the run-time library itself.
+ -- db Output debug information from Better_Choice in Binde, which uses
+ -- various heuristics to determine elaboration order in cases where
+ -- multiple orders are valid.
+
-- dc List units as they are chosen. As units are selected for addition to
-- the elaboration order, a line of output is generated showing which
-- unit has been selected.
-- df Only output file names, not path names, in log
+ -- dm Issue a message indicating the maximum number of simultaneous
+ -- compilations.
+
-- dn Do not delete temporary files created by gnatmake at the end
-- of execution, such as temporary config pragma files, mapping
-- files or project path files.
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