-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2002 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2006, 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, --
-- Summary of Debug Flag Usage --
---------------------------------
- -- Debug flags for compiler (GNAT1 and GNATF)
+ -- Debug flags for compiler (GNAT1)
-- da Generate messages tracking semantic analyzer progress
-- db Show encoding of type names for debug output
-- dA All entities included in representation information output
-- dB Output debug encoding of type names and variants
- -- dC
+ -- dC Output debugging information on check suppression
-- dD Delete elaboration checks in inner level routines
-- dE Apply elaboration checks to predefined units
-- dF Front end data layout enabled.
- -- dG
+ -- dG Generate all warnings including those normally suppressed
-- dH Hold (kill) call to gigi
-- dI Inhibit internal name numbering in gnatG listing
-- 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
- -- dN Do not generate file/line exception messages
+ -- dM Asssume 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
-- dQ
-- dT Convert to machine numbers only for constant declarations
-- dU Enable garbage collection of unreachable entities
-- dV Enable viewing of all symbols in debugger
- -- dW
- -- dX Enable Frontend ZCX even when it is not supported
- -- dY
- -- dZ
+ -- dW Disable warnings on calls for IN OUT parameters
+ -- dX
+ -- dY Enable configurable run-time mode
+ -- dZ Generate listing showing the contents of the dispatch tables
+
+ -- d.a
+ -- d.b
+ -- d.c
+ -- d.d
+ -- d.e
+ -- 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 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.q
+ -- d.r
+ -- d.s
+ -- d.t
+ -- d.u
+ -- d.v
+ -- 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
-- du List units as they are acquired
-- dv
-- dw
- -- dx
+ -- dx Force binder to read xref information from ali files
-- dy
-- dz
- -- d1
- -- d2
- -- d3
- -- d4
- -- d5
- -- d6
- -- d7
- -- d8
- -- d9
-
-- Debug flags used in package Make and its clients (e.g. GNATMAKE)
-- da
-- dk
-- dl
-- dm
- -- dn
+ -- dn Do not delete temp files created by gnatmake
-- do
-- dp Prints the contents of the Q used by Make.Compile_Sources
-- dq Prints source files as they are enqueued and dequeued
-- dr
-- ds
- -- dt
+ -- dt Display time stamps when there is a mismatch
-- du List units as their ali files are acquired
-- dv
-- dw Prints the list of units withed by the unit currently explored
-- dy
-- dz
- -- d1
- -- d2
- -- d3
- -- d4
- -- d5
- -- d6
- -- d7
- -- d8
- -- d9
-
--------------------------------------------
-- Documentation for Compiler Debug Flags --
--------------------------------------------
-- resolved, or evaluated. This option is useful for finding out
-- exactly where a bomb during semantic analysis is occurring.
- -- dA Normally the output from -gnatR excludes private types and all
- -- internal entities. This debug flag causes representation info
- -- for these entities to be output as well.
-
-- db In Exp_Dbug, certain type names are encoded to include debugging
-- information. This debug switch causes lines to be output showing
-- the encodings used.
-- dd Dynamic allocation of tables messages generated. Each time a
-- table is reallocated, a line is output indicating the expansion.
- -- dD Delete new elaboration checks. This flag causes GNAT to return
- -- to the 3.13a elaboration semantics, and to suppress the fixing
- -- of two bugs. The first is in the context of inner routines in
- -- dynamic elaboration mode, when the subprogram we are in was
- -- called at elaboration time by a unit that was also compiled with
- -- dynamic elaboration checks. In this case, if A calls B calls C,
- -- and all are in different units, we need an elaboration check at
- -- each call. These nested checks were only put in recently (see
- -- version 1.80 of Sem_Elab) and we provide this debug flag to
- -- revert to the previous behavior in case of regressions. The
- -- other behavior reverted by this flag is the treatment of the
- -- Elaborate_Body pragma in static elaboration mode. This used to
- -- be treated as not needing elaboration checking, but in fact in
- -- general Elaborate_All is still required because of nested calls.
-
-- de List the entity table
-- df Full tree/source print (includes withed units). Normally the tree
-- be effective, this swich must be used in combination with one or
-- more of dt, dg, do or ds.
- -- dF Front end data layout enabled. Normally front end data layout
- -- is only enabled if the target parameter Backend_Layout is False.
- -- This debugging switch enables it unconditionally.
-
-- dg Print the source recreated from the generated tree. In the case
-- where the tree has been rewritten this output includes only the
-- generated code, not the original code (see also df,do,ds,dz).
-- in ensuring that the hashing algorithm (in Namet.Hash) is working
-- effectively with typical sets of program identifiers.
- -- dH Inhibit call to gigi. This is useful for testing front end data
- -- layout, and may be useful in other debugging situations where
- -- you do not want gigi to intefere with the testing.
-
-- di Generate messages for visibility linking/delinking
-- dj Suppress "junk null check" for access parameters. This flag permits
-- Neither of these is valid Ada, but both were allowed in versions of
-- GNAT before 3.10, so this switch can ease the transition process.
- -- dJ Generate debugging trace output for the JGNAT back end. This
- -- consists of symbolic Java Byte Code sequences for all generated
- -- classes plus additional information to indicate local variables
- -- and methods.
-
-- dk Immediate kill on abort. Normally on an abort (i.e. a call to
-- Comperr.Compiler_Abort), the GNATBUG message is not given if
-- there is a previous error. This debug switch bypasses this test
-- and gives the message unconditionally (useful for debugging).
- -- dK Kill all error messages. This debug flag suppresses the output
- -- of all error messages. It is used in regression tests where the
- -- error messages are target dependent and irrelevant.
-
-- dl Generate unit load trace messages. A line of traceback output is
-- generated each time a request is made to the library manager to
-- load a new unit.
-- generated. This option is useful in seeing where the parser is
-- blowing up.;
- -- dN Do not generate file/line exception messages. Normally we do the
- -- explicit generation of these messages, but since these can only
- -- be disabled using pragma Discard_Names, this switch may be useful.
-
-- do Print the source recreated from the generated tree. In the case
-- where the tree has been rewritten, this output includes only the
-- original code, not the generated code (see also df,dg,ds,dz).
-- for adding temporary debugging code to units that have pragmas
-- that are inconsistent with the debugging code added.
+ -- dv Output trace of overload resolution. Outputs messages for
+ -- overload attempts that involve cascaded errors, or where
+ -- 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
-- Sem_Ch8.Pop_Scope subprograms).
-- 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.
+ -- as all user defined type and object entities including private
+ -- 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.
+ -- dC Output trace information showing the decisions made during
+ -- check suppression activity in unit Checks.
+
+ -- dD Delete new elaboration checks. This flag causes GNAT to return
+ -- to the 3.13a elaboration semantics, and to suppress the fixing
+ -- of two bugs. The first is in the context of inner routines in
+ -- dynamic elaboration mode, when the subprogram we are in was
+ -- called at elaboration time by a unit that was also compiled with
+ -- dynamic elaboration checks. In this case, if A calls B calls C,
+ -- and all are in different units, we need an elaboration check at
+ -- each call. These nested checks were only put in recently (see
+ -- version 1.80 of Sem_Elab) and we provide this debug flag to
+ -- revert to the previous behavior in case of regressions. The
+ -- other behavior reverted by this flag is the treatment of the
+ -- Elaborate_Body pragma in static elaboration mode. This used to
+ -- be treated as not needing elaboration checking, but in fact in
+ -- general Elaborate_All is still required because of nested calls.
+
-- dE Apply compile time elaboration checking for with relations between
-- predefined units. Normally no checks are made (it seems that at
-- least on the SGI, such checks run into trouble).
+ -- dF Front end data layout enabled. Normally front end data layout
+ -- is only enabled if the target parameter Backend_Layout is False.
+ -- This debugging switch enables it unconditionally.
+
+ -- dG Generate all warnings. Normally Errout suppresses warnings on
+ -- units that are not part of the main extended source, and also
+ -- suppresses warnings on instantiations in the main extended
+ -- source that duplicate warnings already posted on the template.
+ -- This switch stops both kinds of deletion and causes Errout to
+ -- post all warnings sent to it.
+
+ -- dH Inhibit call to gigi. This is useful for testing front end data
+ -- layout, and may be useful in other debugging situations where
+ -- you do not want gigi to intefere with the testing.
+
-- dI Inhibit internal name numbering in gnatDG listing. For internal
-- names of the form <uppercase-letters><digits><suffix>, the output
-- will be modified to <uppercase-letters>...<suffix>. This is used
-- in the fixed bugs run to minimize system and version dependency
-- in filed -gnatDG output.
+ -- dJ Generate debugging trace output for the JGNAT back end. This
+ -- consists of symbolic Java Byte Code sequences for all generated
+ -- classes plus additional information to indicate local variables
+ -- and methods.
+
+ -- dK Kill all error messages. This debug flag suppresses the output
+ -- of all error messages. It is used in regression tests where the
+ -- error messages are target dependent and irrelevant.
+
-- dL Output trace information on elaboration checking. This debug
-- switch causes output to be generated showing each call or
-- instantiation as it is checked, and the progress of the recursive
-- trace through calls at elaboration time.
+ -- dM Assume all variables have been modified, and ignore current value
+ -- 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
+
-- dO Output immediate error messages. This causes error messages to
-- be output as soon as they are generated (disconnecting several
-- circuits for improvement of messages, deletion of duplicate
-- 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
-- be enabled without generating modified source files. Note that the
-- use of -gnatdV ensures in the dwarf/elf case that all symbols that
-- are present in the elf tables are also in the dwarf tables (which
- -- seems to be required by some tools).
-
- -- 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.
-
- -- d1 Error msgs have node numbers where possible. Normally error
+ -- seems to be required by some tools). Another effect of dV is to
+ -- generate full qualified names, including internal names generated
+ -- for blocks and loops.
+
+ -- dW Disable warnings when a possibly uninitialized scalar value is
+ -- passed to an IN OUT parameter of a procedure. This usage is a
+ -- quite improper bounded error [erroneous in Ada 83] situation,
+ -- and would normally generate a warning. However, to ease the
+ -- task of transitioning incorrect legacy code, we provide this
+ -- undocumented feature for suppressing these warnings.
+
+ -- 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
+ -- 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
-- does not give enough information.
-- messages. The messages are still interspersed in the listing, but
-- without any error flags or extra blank lines. Also causes an extra
-- <<< to be output at the right margin. This is intended to be the
- -- easiest format for checking conformance of ACVC B tests.
+ -- easiest format for checking conformance of ACATS B tests. This
+ -- flag also suppresses the additional messages explaining why a
+ -- non-static expression is non-static (see Sem_Eval.Why_Not_Static).
+ -- This avoids having to worry about these messages in ACATS testing.
-- d3 Causes Comperr to dump the contents of the node for which an abort
-- was detected (normally only the Node_Id of the node is output).
-- of the prefixes Ada, System, and Interfaces. Setting this debug
-- switch disables this special treatment.
+ -- d5 Causes the tree read/write circuit to output detailed information
+ -- tracking the data that is read and written element by element.
+
-- d6 Normally access-to-unconstrained-array types are represented
-- using fat (double) pointers. Using this debug flag causes them
-- to default to thin. This can be used to test the performance
-- 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
+ -- in ali files (used to check that read circuit is working OK).
+
------------------------------------------------------------
-- Documentation for the Debug Flags used in package Make --
------------------------------------------------------------
-- Please note that such flags apply to all of Make clients,
-- such as gnatmake.
+ -- dn Do not delete temporary files creates by Make at the end
+ -- of execution, such as temporary config pragma files, mapping
+ -- files or project path files.
+
-- dp Prints the Q used by routine Make.Compile_Sources every time
-- we go around the main compile loop of Make.Compile_Sources
-- used by routine Make.Compile_Sources. Useful to figure out the
-- order in which sources are recompiled.
+ -- dt When a time stamp mismatch has been found for an ALI file,
+ -- display the source file name, the time stamp expected and
+ -- the time stamp found.
+
+ -- du List unit name and file name for each unit as it is read in
+
-- dw Prints the list of units withed by the unit currently explored
-- during the main loop of Make.Compile_Sources.
end if;
end Set_Debug_Flag;
+ ---------------------------
+ -- Set_Dotted_Debug_Flag --
+ ---------------------------
+
+ procedure Set_Dotted_Debug_Flag (C : Character; Val : Boolean := True) is
+ subtype Dig is Character range '1' .. '9';
+ subtype LLet is Character range 'a' .. 'z';
+ subtype ULet is Character range 'A' .. 'Z';
+
+ begin
+ if C in Dig then
+ case Dig (C) is
+ when '1' => Debug_Flag_Dot_1 := Val;
+ when '2' => Debug_Flag_Dot_2 := Val;
+ when '3' => Debug_Flag_Dot_3 := Val;
+ when '4' => Debug_Flag_Dot_4 := Val;
+ when '5' => Debug_Flag_Dot_5 := Val;
+ when '6' => Debug_Flag_Dot_6 := Val;
+ when '7' => Debug_Flag_Dot_7 := Val;
+ when '8' => Debug_Flag_Dot_8 := Val;
+ when '9' => Debug_Flag_Dot_9 := Val;
+ end case;
+
+ elsif C in ULet then
+ case ULet (C) is
+ when 'A' => Debug_Flag_Dot_AA := Val;
+ when 'B' => Debug_Flag_Dot_BB := Val;
+ when 'C' => Debug_Flag_Dot_CC := Val;
+ when 'D' => Debug_Flag_Dot_DD := Val;
+ when 'E' => Debug_Flag_Dot_EE := Val;
+ when 'F' => Debug_Flag_Dot_FF := Val;
+ when 'G' => Debug_Flag_Dot_GG := Val;
+ when 'H' => Debug_Flag_Dot_HH := Val;
+ when 'I' => Debug_Flag_Dot_II := Val;
+ when 'J' => Debug_Flag_Dot_JJ := Val;
+ when 'K' => Debug_Flag_Dot_KK := Val;
+ when 'L' => Debug_Flag_Dot_LL := Val;
+ when 'M' => Debug_Flag_Dot_MM := Val;
+ when 'N' => Debug_Flag_Dot_NN := Val;
+ when 'O' => Debug_Flag_Dot_OO := Val;
+ when 'P' => Debug_Flag_Dot_PP := Val;
+ when 'Q' => Debug_Flag_Dot_QQ := Val;
+ when 'R' => Debug_Flag_Dot_RR := Val;
+ when 'S' => Debug_Flag_Dot_SS := Val;
+ when 'T' => Debug_Flag_Dot_TT := Val;
+ when 'U' => Debug_Flag_Dot_UU := Val;
+ when 'V' => Debug_Flag_Dot_VV := Val;
+ when 'W' => Debug_Flag_Dot_WW := Val;
+ when 'X' => Debug_Flag_Dot_XX := Val;
+ when 'Y' => Debug_Flag_Dot_YY := Val;
+ when 'Z' => Debug_Flag_Dot_ZZ := Val;
+ end case;
+
+ else
+ case LLet (C) is
+ when 'a' => Debug_Flag_Dot_A := Val;
+ when 'b' => Debug_Flag_Dot_B := Val;
+ when 'c' => Debug_Flag_Dot_C := Val;
+ when 'd' => Debug_Flag_Dot_D := Val;
+ when 'e' => Debug_Flag_Dot_E := Val;
+ when 'f' => Debug_Flag_Dot_F := Val;
+ when 'g' => Debug_Flag_Dot_G := Val;
+ when 'h' => Debug_Flag_Dot_H := Val;
+ when 'i' => Debug_Flag_Dot_I := Val;
+ when 'j' => Debug_Flag_Dot_J := Val;
+ when 'k' => Debug_Flag_Dot_K := Val;
+ when 'l' => Debug_Flag_Dot_L := Val;
+ when 'm' => Debug_Flag_Dot_M := Val;
+ when 'n' => Debug_Flag_Dot_N := Val;
+ when 'o' => Debug_Flag_Dot_O := Val;
+ when 'p' => Debug_Flag_Dot_P := Val;
+ when 'q' => Debug_Flag_Dot_Q := Val;
+ when 'r' => Debug_Flag_Dot_R := Val;
+ when 's' => Debug_Flag_Dot_S := Val;
+ when 't' => Debug_Flag_Dot_T := Val;
+ when 'u' => Debug_Flag_Dot_U := Val;
+ when 'v' => Debug_Flag_Dot_V := Val;
+ when 'w' => Debug_Flag_Dot_W := Val;
+ when 'x' => Debug_Flag_Dot_X := Val;
+ when 'y' => Debug_Flag_Dot_Y := Val;
+ when 'z' => Debug_Flag_Dot_Z := Val;
+ end case;
+ end if;
+ end Set_Dotted_Debug_Flag;
+
end Debug;
OSDN Git Service
