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/usage.adb | 634 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 634 insertions(+) create mode 100644 gcc/ada/usage.adb (limited to 'gcc/ada/usage.adb') diff --git a/gcc/ada/usage.adb b/gcc/ada/usage.adb new file mode 100644 index 000000000..4d395b4dc --- /dev/null +++ b/gcc/ada/usage.adb @@ -0,0 +1,634 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- U S A G E -- +-- -- +-- B o d y -- +-- -- +-- 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 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 COPYING3. If not, go to -- +-- http://www.gnu.org/licenses for a complete copy of the license. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- Warning: the output of this usage for warnings is duplicated in the GNAT +-- reference manual. Be sure to update that if you change the warning list. + +with Targparm; use Targparm; +with Namet; use Namet; +with Opt; use Opt; +with Osint; use Osint; +with Output; use Output; + +with System.WCh_Con; use System.WCh_Con; + +procedure Usage is + + procedure Write_Switch_Char (Sw : String; Prefix : String := "gnat"); + -- Output two spaces followed by the switch character minus followed + -- Prefix, followed by the string given as the argument, and then enough + -- blanks to tab to column 13, i.e. assuming Sw is not longer than 5 + -- characters, the maximum allowed, Write_Switch_Char will always output + -- exactly 12 characters. + + ----------------------- + -- Write_Switch_Char -- + ----------------------- + + procedure Write_Switch_Char (Sw : String; Prefix : String := "gnat") is + begin + Write_Str (" -"); + Write_Str (Prefix); + Write_Str (Sw); + + for J in 1 .. 12 - 3 - Prefix'Length - Sw'Length loop + Write_Char (' '); + end loop; + end Write_Switch_Char; + +-- Start of processing for Usage + +begin + Find_Program_Name; + + -- For gnatmake, we are appending this information to the end of + -- the normal gnatmake output, so generate appropriate header + + if Name_Len >= 8 + and then (Name_Buffer (Name_Len - 7 .. Name_Len) = "gnatmake" + or else + Name_Buffer (Name_Len - 7 .. Name_Len) = "GNATMAKE") + then + Write_Eol; + Write_Line ("Compiler switches (passed to the compiler by gnatmake):"); + + else + -- Usage line + + Write_Str ("Usage: "); + Write_Program_Name; + Write_Char (' '); + Write_Str ("switches sfile"); + Write_Eol; + Write_Eol; + + -- Line for sfile + + Write_Line (" sfile Source file name"); + end if; + + Write_Eol; + + -- Common GCC switches not available for JVM, .NET, and AAMP targets + + if VM_Target = No_VM and then not AAMP_On_Target then + Write_Switch_Char ("fstack-check ", ""); + Write_Line ("Generate stack checking code"); + + Write_Switch_Char ("fno-inline ", ""); + Write_Line ("Inhibit all inlining (makes executable smaller)"); + + Write_Switch_Char ("fpreserve-control-flow ", ""); + Write_Line ("Preserve control flow for coverage analysis"); + end if; + + -- Common switches available to both GCC and JGNAT + + Write_Switch_Char ("g ", ""); + Write_Line ("Generate debugging information"); + + Write_Switch_Char ("Idir ", ""); + Write_Line ("Specify source files search path"); + + Write_Switch_Char ("I- ", ""); + Write_Line ("Do not look for sources in current directory"); + + Write_Switch_Char ("O[0123] ", ""); + Write_Line ("Control the optimization level"); + + Write_Eol; + + -- Individual lines for switches. Write_Switch_Char outputs fourteen + -- characters, so the remaining message is allowed to be a maximum + -- of 65 characters to be comfortable on an 80 character device. + -- If the Write_Str fits on one line, it is short enough! + + -- Line for -gnata switch + + Write_Switch_Char ("a"); + Write_Line ("Assertions enabled. Pragma Assert/Debug to be activated"); + + -- Line for -gnatA switch + + Write_Switch_Char ("A"); + Write_Line ("Avoid processing gnat.adc, if present file will be ignored"); + + -- Line for -gnatb switch + + Write_Switch_Char ("b"); + Write_Line ("Generate brief messages to stderr even if verbose mode set"); + + -- Line for -gnatB switch + + Write_Switch_Char ("B"); + Write_Line ("Assume no bad (invalid) values except in 'Valid attribute"); + + -- Line for -gnatc switch + + Write_Switch_Char ("c"); + Write_Line ("Check syntax and semantics only (no code generation)"); + + -- Line for -gnatC switch + + Write_Switch_Char ("C"); + Write_Line ("Generate CodePeer information (no code generation)"); + + -- Line for -gnatd switch + + Write_Switch_Char ("d?"); + Write_Line ("Compiler debug option ? ([.]a-z,A-Z,0-9), see debug.adb"); + + -- Line for -gnatD switch + + Write_Switch_Char ("D"); + Write_Line ("Debug expanded generated code (max line length = 72)"); + Write_Switch_Char ("Dnn"); + Write_Line ("Debug expanded generated code (max line length = nn)"); + + -- Line for -gnatec switch + + Write_Switch_Char ("ec=?"); + Write_Line ("Specify configuration pragmas file, e.g. -gnatec=/x/f.adc"); + + -- Line for -gnateD switch + + Write_Switch_Char ("eD?"); + Write_Line ("Define or redefine preprocessing symbol, e.g. -gnateDsym=val"); + + -- Line for -gnateE switch + + Write_Switch_Char ("eE"); + Write_Line ("Generate extra information in exception messages"); + + -- Line for -gnatef switch + + Write_Switch_Char ("ef"); + Write_Line ("Full source path in brief error messages"); + + -- Line for -gnateG switch + + Write_Switch_Char ("eG"); + Write_Line ("Generate preprocessed source"); + + -- Line for -gnateI switch + + Write_Switch_Char ("eInn"); + Write_Line ("Index in multi-unit source, e.g. -gnateI2"); + + -- Line for -gnatem switch + + Write_Switch_Char ("em=?"); + Write_Line ("Specify mapping file, e.g. -gnatem=mapping"); + + -- Line for -gnatep switch + + Write_Switch_Char ("ep=?"); + Write_Line ("Specify preprocessing data file, e.g. -gnatep=prep.data"); + + -- Line for -gnateP switch + + Write_Switch_Char ("eP"); + Write_Line ("Pure/Prelaborate errors generate warnings rather than errors"); + + -- Line for -gnateS switch + + Write_Switch_Char ("eS"); + Write_Line ("Generate SCO (Source Coverage Obligation) information"); + + -- Line for -gnatE switch + + Write_Switch_Char ("E"); + Write_Line ("Dynamic elaboration checking mode enabled"); + + -- Line for -gnatf switch + + Write_Switch_Char ("f"); + Write_Line ("Full errors. Verbose details, all undefined references"); + + -- Line for -gnatF switch + + Write_Switch_Char ("F"); + Write_Line ("Force all import/export external names to all uppercase"); + + -- Line for -gnatg switch + + Write_Switch_Char ("g"); + Write_Line ("GNAT implementation mode (used for compiling GNAT units)"); + + -- Lines for -gnatG switch + + Write_Switch_Char ("G"); + Write_Line ("Output generated expanded code (max line length = 72)"); + Write_Switch_Char ("Gnn"); + Write_Line ("Output generated expanded code (max line length = nn)"); + + -- Line for -gnath switch + + Write_Switch_Char ("h"); + Write_Line ("Output this usage (help) information"); + + -- Line for -gnati switch + + Write_Switch_Char ("i?"); + Write_Line ("Identifier char set (?=1/2/3/4/5/8/9/p/f/n/w)"); + + -- Line for -gnatI switch + + Write_Switch_Char ("I"); + Write_Line ("Ignore all representation clauses"); + + -- Line for -gnatj switch + + Write_Switch_Char ("jnn"); + Write_Line ("Format error and warning messages to fit nn character lines"); + + -- Line for -gnatk switch + + Write_Switch_Char ("k"); + Write_Line ("Limit file names to nn characters (k = krunch)"); + + -- Lines for -gnatl switch + + Write_Switch_Char ("l"); + Write_Line ("Output full source listing with embedded error messages"); + Write_Switch_Char ("l=f"); + Write_Line ("Output full source listing to specified file"); + + -- Line for -gnatL switch + + Write_Switch_Char ("L"); + Write_Line ("List corresponding source text in -gnatG or -gnatD output"); + + -- Line for -gnatm switch + + Write_Switch_Char ("mnn"); + Write_Line ("Limit number of detected errors/warnings to nn (1-999999)"); + + -- Line for -gnatn switch + + Write_Switch_Char ("n"); + Write_Line ("Enable pragma Inline (both within and across units)"); + + -- Line for -gnatN switch + + Write_Switch_Char ("N"); + Write_Line ("Full (frontend) inlining of subprograms"); + + -- Line for -gnato switch + + Write_Switch_Char ("o"); + Write_Line ("Enable overflow checking (off by default)"); + + -- Line for -gnatO switch + + Write_Switch_Char ("O nm "); + Write_Line ("Set name of output ali file (internal switch)"); + + -- Line for -gnatp switch + + Write_Switch_Char ("p"); + Write_Line ("Suppress all checks"); + + -- Line for -gnatP switch + + Write_Switch_Char ("P"); + Write_Line ("Generate periodic calls to System.Polling.Poll"); + + -- Line for -gnatq switch + + Write_Switch_Char ("q"); + Write_Line ("Don't quit, try semantics, even if parse errors"); + + -- Line for -gnatQ switch + + Write_Switch_Char ("Q"); + Write_Line ("Don't quit, write ali/tree file even if compile errors"); + + -- Line for -gnatr switch + + Write_Switch_Char ("r"); + Write_Line ("Treat pragma Restrictions as Restriction_Warnings"); + + -- Lines for -gnatR switch + + Write_Switch_Char ("R?"); + Write_Line ("List rep info (?=0/1/2/3 for none/types/all/variable)"); + Write_Switch_Char ("R?s"); + Write_Line ("List rep info to file.rep instead of standard output"); + + -- Lines for -gnats switch + + Write_Switch_Char ("s"); + Write_Line ("Syntax check only"); + + -- Lines for -gnatS switch + + Write_Switch_Char ("S"); + Write_Line ("Print listing of package Standard"); + + -- Lines for -gnatt switch + + Write_Switch_Char ("t"); + Write_Line ("Tree output file to be generated"); + + -- Line for -gnatT switch + + Write_Switch_Char ("Tnn"); + Write_Line ("All compiler tables start at nn times usual starting size"); + + -- Line for -gnatu switch + + Write_Switch_Char ("u"); + Write_Line ("List units for this compilation"); + + -- Line for -gnatU switch + + Write_Switch_Char ("U"); + Write_Line ("Enable unique tag for error messages"); + + -- Line for -gnatv switch + + Write_Switch_Char ("v"); + Write_Line ("Verbose mode. Full error output with source lines to stdout"); + + -- Line for -gnatV switch + + Write_Switch_Char ("Vxx"); + Write_Line + ("Enable selected validity checking mode, xx = list of parameters:"); + Write_Line (" a turn on all validity checking options"); + Write_Line (" c turn on checking for copies"); + Write_Line (" C turn off checking for copies"); + Write_Line (" d turn on default (RM) checking"); + Write_Line (" D turn off default (RM) checking"); + Write_Line (" e turn on checking for elementary components"); + Write_Line (" E turn off checking for elementary components"); + Write_Line (" f turn on checking for floating-point"); + Write_Line (" F turn off checking for floating-point"); + Write_Line (" i turn on checking for in params"); + Write_Line (" I turn off checking for in params"); + Write_Line (" m turn on checking for in out params"); + Write_Line (" M turn off checking for in out params"); + Write_Line (" o turn on checking for operators/attributes"); + Write_Line (" O turn off checking for operators/attributes"); + Write_Line (" p turn on checking for parameters"); + Write_Line (" P turn off checking for parameters"); + Write_Line (" r turn on checking for returns"); + Write_Line (" R turn off checking for returns"); + Write_Line (" s turn on checking for subscripts"); + Write_Line (" S turn off checking for subscripts"); + Write_Line (" t turn on checking for tests"); + Write_Line (" T turn off checking for tests"); + Write_Line (" n turn off all validity checks (including RM)"); + + -- Lines for -gnatw switch + + Write_Switch_Char ("wxx"); + Write_Line ("Enable selected warning modes, xx = list of parameters:"); + Write_Line (" a turn on all info/warnings marked below with +"); + Write_Line (" A turn off all optional info/warnings"); + Write_Line (" .a*+ turn on warnings for failing assertion"); + Write_Line (" .A turn off warnings for failing assertion"); + Write_Line (" b+ turn on warnings for bad fixed value " & + "(not multiple of small)"); + Write_Line (" B* turn off warnings for bad fixed value " & + "(not multiple of small)"); + Write_Line (" .b*+ turn on warnings for biased representation"); + Write_Line (" .B turn off warnings for biased representation"); + Write_Line (" c+ turn on warnings for constant conditional"); + Write_Line (" C* turn off warnings for constant conditional"); + Write_Line (" .c+ turn on warnings for unrepped components"); + Write_Line (" .C* turn off warnings for unrepped components"); + Write_Line (" d turn on warnings for implicit dereference"); + Write_Line (" D* turn off warnings for implicit dereference"); + Write_Line (" e treat all warnings (but not info) as errors"); + Write_Line (" .e turn on every optional info/warning " & + "(no exceptions)"); + Write_Line (" f+ turn on warnings for unreferenced formal"); + Write_Line (" F* turn off warnings for unreferenced formal"); + Write_Line (" g*+ turn on warnings for unrecognized pragma"); + Write_Line (" G turn off warnings for unrecognized pragma"); + Write_Line (" h turn on warnings for hiding declarations"); + Write_Line (" H* turn off warnings for hiding declarations"); + Write_Line (" .h turn on warnings for holes in records"); + Write_Line (" .H* turn off warnings for holes in records"); + Write_Line (" i*+ turn on warnings for implementation unit"); + Write_Line (" I turn off warnings for implementation unit"); + Write_Line (" .i turn on warnings for overlapping actuals"); + Write_Line (" .I* turn off warnings for overlapping actuals"); + Write_Line (" j+ turn on warnings for obsolescent " & + "(annex J) feature"); + Write_Line (" J* turn off warnings for obsolescent " & + "(annex J) feature"); + Write_Line (" k+ turn on warnings on constant variable"); + Write_Line (" K* turn off warnings on constant variable"); + Write_Line (" l turn on warnings for missing " & + "elaboration pragma"); + Write_Line (" L* turn off warnings for missing " & + "elaboration pragma"); + Write_Line (" .l* turn on info messages for inherited aspects"); + Write_Line (" .L turn off info messages for inherited aspects"); + Write_Line (" m+ turn on warnings for variable assigned " & + "but not read"); + Write_Line (" M* turn off warnings for variable assigned " & + "but not read"); + Write_Line (" .m* turn on warnings for suspicious modulus value"); + Write_Line (" .M turn off warnings for suspicious modulus value"); + Write_Line (" n* normal warning mode (cancels -gnatws/-gnatwe)"); + Write_Line (" o* turn on warnings for address clause overlay"); + Write_Line (" O turn off warnings for address clause overlay"); + Write_Line (" .o turn on warnings for out parameters assigned " & + "but not read"); + Write_Line (" .O* turn off warnings for out parameters assigned " & + "but not read"); + Write_Line (" p+ turn on warnings for ineffective pragma " & + "Inline in frontend"); + Write_Line (" P* turn off warnings for ineffective pragma " & + "Inline in frontend"); + Write_Line (" .p+ turn on warnings for suspicious parameter " & + "order"); + Write_Line (" .P* turn off warnings for suspicious parameter " & + "order"); + Write_Line (" q*+ turn on warnings for questionable " & + "missing parenthesis"); + Write_Line (" Q turn off warnings for questionable " & + "missing parenthesis"); + Write_Line (" r+ turn on warnings for redundant construct"); + Write_Line (" R* turn off warnings for redundant construct"); + Write_Line (" .r+ turn on warnings for object renaming function"); + Write_Line (" .R* turn off warnings for object renaming function"); + Write_Line (" s suppress all info/warnings"); + Write_Line (" .s turn on warnings for overridden size clause"); + Write_Line (" .S* turn off warnings for overridden size clause"); + Write_Line (" t turn on warnings for tracking deleted code"); + Write_Line (" T* turn off warnings for tracking deleted code"); + Write_Line (" u+ turn on warnings for unused entity"); + Write_Line (" U* turn off warnings for unused entity"); + Write_Line (" .u turn on warnings for unordered enumeration"); + Write_Line (" .U* turn off warnings for unordered enumeration"); + Write_Line (" v*+ turn on warnings for unassigned variable"); + Write_Line (" V turn off warnings for unassigned variable"); + Write_Line (" .v*+ turn on info messages for reverse bit order"); + Write_Line (" .V turn off info messages for reverse bit order"); + Write_Line (" w*+ turn on warnings for wrong low bound assumption"); + Write_Line (" W turn off warnings for wrong low bound " & + "assumption"); + Write_Line (" .w turn on warnings on pragma Warnings Off"); + Write_Line (" .W* turn off warnings on pragma Warnings Off"); + Write_Line (" x*+ turn on warnings for export/import"); + Write_Line (" X turn off warnings for export/import"); + Write_Line (" .x+ turn on warnings for non-local exception"); + Write_Line (" .X* turn off warnings for non-local exception"); + Write_Line (" y*+ turn on warnings for Ada 2005 incompatibility"); + Write_Line (" Y turn off warnings for Ada 2005 incompatibility"); + Write_Line (" z*+ turn on warnings for suspicious " & + "unchecked conversion"); + Write_Line (" Z turn off warnings for suspicious " & + "unchecked conversion"); + Write_Line (" * indicates default in above list"); + Write_Line (" + indicates warning flag included in -gnatwa"); + + -- Line for -gnatW switch + + Write_Switch_Char ("W"); + Write_Str ("Wide character encoding method ("); + + for J in WC_Encoding_Method loop + Write_Char (WC_Encoding_Letters (J)); + + if J = WC_Encoding_Method'Last then + Write_Char (')'); + else + Write_Char ('/'); + end if; + end loop; + + Write_Eol; + + -- Line for -gnatx switch + + Write_Switch_Char ("x"); + Write_Line ("Suppress output of cross-reference information"); + + -- Line for -gnatX switch + + Write_Switch_Char ("X"); + Write_Line ("Language extensions permitted"); + + -- Lines for -gnaty switch + + Write_Switch_Char ("y"); + Write_Line ("Enable default style checks (same as -gnaty3abcefhiklmnprst)"); + Write_Switch_Char ("yxx"); + Write_Line ("Enable selected style checks xx = list of parameters:"); + Write_Line (" 1-9 check indentation"); + Write_Line (" a check attribute casing"); + Write_Line (" A check array attribute indexes"); + Write_Line (" b check no blanks at end of lines"); + Write_Line (" B check no use of AND/OR for boolean expressions"); + Write_Line (" c check comment format"); + Write_Line (" d check no DOS line terminators"); + Write_Line (" e check end/exit labels present"); + Write_Line (" f check no form feeds/vertical tabs in source"); + Write_Line (" g check standard GNAT style rules"); + Write_Line (" h check no horizontal tabs in source"); + Write_Line (" i check if-then layout"); + Write_Line (" I check mode in"); + Write_Line (" k check casing rules for keywords"); + Write_Line (" l check reference manual layout"); + Write_Line (" Lnn check max nest level < nn "); + Write_Line (" m check line length <= 79 characters"); + Write_Line (" n check casing of package Standard identifiers"); + Write_Line (" Mnn check line length <= nn characters"); + Write_Line (" N turn off all checks"); + Write_Line (" o check subprogram bodies in alphabetical order"); + Write_Line (" O check overriding indicators"); + Write_Line (" p check pragma casing"); + Write_Line (" r check casing for identifier references"); + Write_Line (" s check separate subprogram specs present"); + Write_Line (" S check separate lines after THEN or ELSE"); + Write_Line (" t check token separation rules"); + Write_Line (" u check no unnecessary blank lines"); + Write_Line (" x check extra parentheses around conditionals"); + Write_Line (" y turn on default style checks"); + Write_Line (" - subtract (turn off) subsequent checks"); + Write_Line (" + add (turn on) subsequent checks"); + + -- Lines for -gnatyN switch + + Write_Switch_Char ("yN"); + Write_Line ("Cancel all previously set style checks"); + + -- Lines for -gnatzc switch + + Write_Switch_Char ("zc"); + Write_Line ("Distribution stub generation for caller stubs"); + + -- Lines for -gnatzr switch + + Write_Switch_Char ("zr"); + Write_Line ("Distribution stub generation for receiver stubs"); + + -- Line for -gnat83 switch + + Write_Switch_Char ("83"); + Write_Line ("Enforce Ada 83 restrictions"); + + -- Line for -gnat95 switch + + Write_Switch_Char ("95"); + + if Ada_Version_Default = Ada_95 then + Write_Line ("Ada 95 mode (default)"); + else + Write_Line ("Enforce Ada 95 restrictions"); + end if; + + -- Line for -gnat05 switch + + Write_Switch_Char ("05"); + + if Ada_Version_Default = Ada_2005 then + Write_Line ("Ada 2005 mode (default)"); + else + Write_Line ("Enforce Ada 2005 restrictions"); + end if; + + -- Line for -gnat12 switch + + Write_Switch_Char ("12"); + + if Ada_Version_Default = Ada_2012 then + Write_Line ("Ada 2012 mode (default)"); + else + Write_Line ("Allow Ada 2012 extensions"); + end if; + + -- Line for -gnat-p switch + + Write_Switch_Char ("-p"); + Write_Line ("Cancel effect of previous -gnatp switch"); + +end Usage; -- cgit v1.2.3