-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2003 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2007, 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- --
-- 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, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, USA. --
+-- 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, --
-- 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 Enable Frontend ZCX even when it is not supported
+ -- dX
-- dY Enable configurable run-time mode
- -- dZ
+ -- dZ Generate listing showing the contents of the dispatch tables
-- d.a
-- d.b
-- d.c
-- d.d
-- d.e
- -- d.f
- -- d.g
+ -- d.f Inhibit folding of static expressions
+ -- d.g Enable conversion of raise into goto
-- d.h
-- d.i
-- d.j
-- d.k
- -- d.l
- -- d.m
+ -- 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.t
-- d.u
-- d.v
- -- d.w
+ -- d.w Do not check for infinite while loops
-- d.x No exception handlers
-- d.y
-- d.z
-
+ -- d.A
+ -- d.B
+ -- d.C
+ -- d.D
+ -- d.E
+ -- d.F
+ -- d.G
+ -- d.H
+ -- d.I
+ -- d.J
+ -- d.K
+ -- d.L
+ -- d.M
+ -- d.N
+ -- d.O
+ -- d.P
+ -- d.Q
+ -- d.R
+ -- d.S
+ -- d.T
+ -- d.U
+ -- d.V
+ -- d.W
+ -- d.X
+ -- d.Y
+ -- d.Z
-- d1 Error msgs have node numbers where possible
-- d2 Eliminate error flags in verbose form error messages
-- Debug flags for binder (GNATBIND)
- -- da
- -- db
+ -- da All links (including internal units) listed if there is a cycle
+ -- db Output information from Better_Choice
-- dc List units as they are chosen
-- dd
-- de Elaboration dependencies including system units
-- df
-- dg
-- dh
- -- di
+ -- di Ignore_Errors mode for reading ali files
-- dj
-- dk
-- dl
-- dm
-- dn List details of manipulation of Num_Pred values
- -- do
+ -- do Use old preference for elaboration order
-- dp
-- dq
-- dr
-- dy
-- dz
- -- d1
- -- d2
- -- d3
- -- d4
- -- d5
- -- d6
- -- d7
- -- d8
- -- d9
-
-- Debug flags used in package Make and its clients (e.g. GNATMAKE)
-- da
-- dy
-- dz
- -- d1
- -- d2
- -- d3
- -- d4
- -- d5
- -- d6
- -- d7
- -- d8
- -- d9
-
--------------------------------------------
-- Documentation for Compiler Debug Flags --
--------------------------------------------
-- an interepretation is incompatible with the context.
-- dw Write semantic scope stack messages. Each time a scope is created
- -- or removed, a message is output (see the Sem_Ch8.New_Scope and
+ -- or removed, a message is output (see the Sem_Ch8.Push_Scope and
-- Sem_Ch8.Pop_Scope subprograms).
-- dx Force expansion on, even if no code being generated. Normally the
-- dz Print source of package Standard. Normally the source print out
-- does not include package Standard, even if the -df switch is set.
-- This switch forces output of the source recreated from the internal
- -- tree built for Standard.
+ -- tree built for Standard. Note that this differs from -gnatS in
+ -- that it prints from the actual tree using the normal Sprint
+ -- circuitry for printing trees.
-- dA Forces output of representation information, including full
-- information for all internal type and object entities, as well
-- as all user defined type and object entities including private
- -- and incomplete types.
+ -- and incomplete types. This debug switch also automatically sets
+ -- the equivalent of -gnatR3m.
-- dB Output debug encodings for types and variants. See Exp_Dbug for
-- exact form of the generated output.
-- indications. This debug flag disconnects the tracking of constant
-- values (see Exp_Ch2.Expand_Current_Value).
- -- dN Do not generate file name information in exception messages.
+ -- dN Do not generate file name information in exception messages
-- dO Output immediate error messages. This causes error messages to
-- be output as soon as they are generated (disconnecting several
-- 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
-- task of transitioning incorrect legacy code, we provide this
-- undocumented feature for suppressing these warnings.
- -- dX Enable frontend ZCX even when it is not supported. Equivalent to
- -- -gnatZ but without verifying that System.Front_End_ZCX_Support
- -- is set. This causes the front end to generate suitable tables
- -- for ZCX handling even when the runtime cannot handle ZCX. This
- -- is used for testing the front end for correct ZCX operation, and
- -- in particular is useful for multi-target testing.
-
-- dY Enable configurable run-time mode, just as though the System file
-- had Configurable_Run_Time_Mode set to True. This is useful in
-- testing high integrity mode.
+ -- d.f Suppress folding of static expressions. This of course results
+ -- in seriously non-conforming behavior, but is useful sometimes
+ -- when tracking down handling of complex expressions.
+
+ -- d.g Enables conversion of a raise statement into a goto when the
+ -- relevant handler is statically determinable. For now we only try
+ -- this if this debug flag is set. Later we will enable this more
+ -- generally by default.
+
+ -- 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.
+
+ -- d.m When -gnatl is used, the normal output includes full listings of
+ -- all files in the extended main source (body/spec/subunits). If this
+ -- debug switch is used, then the full listing is given only for the
+ -- main source (this corresponds to a previous behavior of -gnatl and
+ -- is used for running the ACATS tests).
+
+ -- d.w This flag turns off the scanning of while loops to detect possible
+ -- infinite loops.
+
-- d.x No exception handlers in generated code. This causes exception
- -- handles to be eliminated from the generated code. They are still
+ -- handlers to be eliminated from the generated code. They are still
-- fully compiled and analyzed, they just get eliminated from the
-- code generation step.
-
-- 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
-- Documentation for Binder Debug Flags --
------------------------------------------
+ -- da Normally if there is an elaboration circularity, then in describing
+ -- the cycle, links involving internal units are omitted, since they
+ -- are irrelevant and confusing. This debug flag causes all links to
+ -- be listed, and is useful when diagnosing circularities introduced
+ -- by incorrect changes to the run-time library itself.
+
-- 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.
-- dependencies) except that internal units are included in the
-- listing.
+ -- di Normally gnatbind calls Read_Ali with Ignore_Errors set to
+ -- False, since the binder really needs correct version ALI
+ -- files to do its job. This debug flag causes Ignore_Errors
+ -- mode to be set for the binder (and is particularly useful
+ -- for testing ignore errors mode).
+
-- dn List details of manipulation of Num_Pred values during execution of
-- the algorithm used to determine a correct order of elaboration. This
-- is useful in diagnosing any problems in its behavior.
+ -- do Use old elaboration order preference. The new preference rules
+ -- prefer specs with no bodies to specs with bodies, and between two
+ -- specs with bodies, prefers the one whose body is closer to being
+ -- able to be elaborated. This is a clear improvement, but we provide
+ -- this debug flag in case of regressions.
+
-- du List unit name and file name for each unit as it is read in
-- dx Force the binder to read (and then ignore) the xref information
-- dw Prints the list of units withed by the unit currently explored
-- during the main loop of Make.Compile_Sources.
- ----------------------
- -- Get_Debug_Flag_K --
- ----------------------
-
- function Get_Debug_Flag_K return Boolean is
- begin
- return Debug_Flag_K;
- end Get_Debug_Flag_K;
-
--------------------
-- Set_Debug_Flag --
--------------------
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