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Diffstat (limited to 'gcc-4.2.1/gcc/ada/usage.adb')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/usage.adb | 489 |
1 files changed, 489 insertions, 0 deletions
diff --git a/gcc-4.2.1/gcc/ada/usage.adb b/gcc-4.2.1/gcc/ada/usage.adb new file mode 100644 index 000000000..e1f790645 --- /dev/null +++ b/gcc-4.2.1/gcc/ada/usage.adb @@ -0,0 +1,489 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- U S A G E -- +-- -- +-- B o d y -- +-- -- +-- 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- -- +-- 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. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +with Hostparm; +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. + + 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 in JGNAT + + if not Hostparm.Java_VM 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)"); + 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 -gnatc switch + + Write_Switch_Char ("c"); + Write_Line ("Check syntax and semantics only (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 rather than source code"); + + -- 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 -gnatef switch + + Write_Switch_Char ("ef"); + Write_Line ("Full source path in brief error messages"); + + -- 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 -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)"); + + -- Line for -gnatG switch + + Write_Switch_Char ("G"); + Write_Line ("Output generated expanded code in source form"); + + -- 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 -gnatk switch + + Write_Switch_Char ("k"); + Write_Line ("Limit file names to nn characters (k = krunch)"); + + -- Line for -gnatl switch + + Write_Switch_Char ("l"); + Write_Line ("Output full source listing with embedded error messages"); + + -- Line for -gnatm switch + + Write_Switch_Char ("mnn"); + Write_Line ("Limit number of detected errors to nn (1-999999)"); + + -- Line for -gnatn switch + + Write_Switch_Char ("n"); + Write_Line ("Inlining of subprograms (apply pragma Inline 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"); + + -- 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 (" 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 optional warnings (except d,h,l)"); + Write_Line (" A turn off all optional warnings"); + 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 (" c turn on warnings for constant conditional"); + Write_Line (" C* turn off warnings for constant conditional"); + Write_Line (" d turn on warnings for implicit dereference"); + Write_Line (" D* turn off warnings for implicit dereference"); + Write_Line (" e treat all warnings as errors"); + 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 variable "); + Write_Line (" H* turn off warnings for hiding variable"); + Write_Line (" i* turn on warnings for implementation unit"); + Write_Line (" I turn off warnings for implementation unit"); + 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 (" m turn on warnings for variable assigned " & + "but not read"); + Write_Line (" M* turn off warnings for variable assigned " & + "but not read"); + 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 (" p turn on warnings for ineffective pragma Inline"); + Write_Line (" P* turn off warnings for ineffective pragma Inline"); + Write_Line (" r turn on warnings for redundant construct"); + Write_Line (" R* turn off warnings for redundant construct"); + Write_Line (" s suppress all warnings"); + Write_Line (" u turn on warnings for unused entity"); + Write_Line (" U* turn off warnings for unused entity"); + Write_Line (" v* turn on warnings for unassigned variable"); + Write_Line (" V turn off warnings for unassigned variable"); + Write_Line (" x* turn on warnings for export/import"); + Write_Line (" X turn off warnings for export/import"); + 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 size/align warnings for " & + "unchecked conversion"); + Write_Line (" Z turn off size/align warnings for " & + "unchecked conversion"); + Write_Line (" * indicates default in above list"); + + -- 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 (" b check no blanks at end of lines"); + 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 (" 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 (" o check subprogram bodies in alphabetical order"); + Write_Line (" p check pragma casing"); + Write_Line (" r check casing for identifier references"); + Write_Line (" s check separate subprogram specs present"); + Write_Line (" t check token separation rules"); + Write_Line (" u check no unnecessary blank lines"); + Write_Line (" x check extra parens around conditionals"); + + -- Lines for -gnatyN switch + + Write_Switch_Char ("yN"); + Write_Line ("Cancel all previously set style checks"); + + -- Lines for -gnatz switch + + Write_Switch_Char ("z"); + Write_Line ("Distribution stub generation (r/c for receiver/caller 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_05 then + Write_Line ("Ada 2005 mode (default)"); + else + Write_Line ("Allow Ada 2005 extensions"); + end if; + +end Usage; |