with Hostparm;
with Namet; use Namet;
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");
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;
begin
Find_Program_Name;
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
Write_Str ("Usage: ");
Write_Program_Name;
Write_Char (' ');
Write_Str ("switches sfile");
Write_Eol;
Write_Eol;
Write_Line (" sfile Source file name");
end if;
Write_Eol;
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;
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;
Write_Switch_Char ("a");
Write_Line ("Assertions enabled. Pragma Assert/Debug to be activated");
Write_Switch_Char ("A");
Write_Line ("Avoid processing gnat.adc, if present file will be ignored");
Write_Switch_Char ("b");
Write_Line ("Generate brief messages to stderr even if verbose mode set");
Write_Switch_Char ("c");
Write_Line ("Check syntax and semantics only (no code generation)");
Write_Switch_Char ("d?");
Write_Line ("Compiler debug option ? ([.]a-z,A-Z,0-9), see debug.adb");
Write_Switch_Char ("D");
Write_Line ("Debug expanded generated code rather than source code");
Write_Switch_Char ("ec=?");
Write_Line ("Specify configuration pragmas file, e.g. -gnatec=/x/f.adc");
Write_Switch_Char ("eD?");
Write_Line ("Define or redefine preprocessing symbol, e.g. -gnateDsym=val");
Write_Switch_Char ("ef");
Write_Line ("Full source path in brief error messages");
Write_Switch_Char ("eInnn");
Write_Line ("Index in multi-unit source, e.g. -gnateI2");
Write_Switch_Char ("em=?");
Write_Line ("Specify mapping file, e.g. -gnatem=mapping");
Write_Switch_Char ("ep=?");
Write_Line ("Specify preprocessing data file, e.g. -gnatep=prep.data");
Write_Switch_Char ("E");
Write_Line ("Dynamic elaboration checking mode enabled");
Write_Switch_Char ("f");
Write_Line ("Full errors. Verbose details, all undefined references");
Write_Switch_Char ("F");
Write_Line ("Force all import/export external names to all uppercase");
Write_Switch_Char ("g");
Write_Line ("GNAT implementation mode (used for compiling GNAT units)");
Write_Switch_Char ("G");
Write_Line ("Output generated expanded code in source form");
Write_Switch_Char ("h");
Write_Line ("Output this usage (help) information");
Write_Switch_Char ("i?");
Write_Line ("Identifier char set (?=1/2/3/4/5/8/9/p/f/n/w)");
Write_Switch_Char ("k");
Write_Line ("Limit file names to nnn characters (k = krunch)");
Write_Switch_Char ("l");
Write_Line ("Output full source listing with embedded error messages");
Write_Switch_Char ("L");
Write_Line ("Use longjmp/setjmp for exception handling");
Write_Switch_Char ("mnnn");
Write_Line ("Limit number of detected errors to nnn (1-999999)");
Write_Switch_Char ("n");
Write_Line ("Inlining of subprograms (apply pragma Inline across units)");
Write_Switch_Char ("N");
Write_Line ("Full (frontend) inlining of subprograms");
Write_Switch_Char ("o");
Write_Line ("Enable overflow checking (off by default)");
Write_Switch_Char ("O nm ");
Write_Line ("Set name of output ali file (internal switch)");
Write_Switch_Char ("p");
Write_Line ("Suppress all checks");
Write_Switch_Char ("P");
Write_Line ("Generate periodic calls to System.Polling.Poll");
Write_Switch_Char ("q");
Write_Line ("Don't quit, try semantics, even if parse errors");
Write_Switch_Char ("Q");
Write_Line ("Don't quit, write ali/tree file even if compile errors");
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");
Write_Switch_Char ("s");
Write_Line ("Syntax check only");
Write_Switch_Char ("S");
Write_Line ("Print listing of package Standard");
Write_Switch_Char ("t");
Write_Line ("Tree output file to be generated");
Write_Switch_Char ("Tnnn");
Write_Line ("All compiler tables start at nnn times usual starting size");
Write_Switch_Char ("u");
Write_Line ("List units for this compilation");
Write_Switch_Char ("U");
Write_Line ("Enable unique tag for error messages");
Write_Switch_Char ("v");
Write_Line ("Verbose mode. Full error output with source lines to stdout");
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)");
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 (" 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 (" 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");
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;
Write_Switch_Char ("x");
Write_Line ("Suppress output of cross-reference information");
Write_Switch_Char ("X");
Write_Line ("Language extensions permitted");
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 (" 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 (" k check casing rules for keywords");
Write_Line (" l check reference manual layout");
Write_Line (" Lnnn check max nest level < nnn");
Write_Line (" m check line length <= 79 characters");
Write_Line (" n check casing of package Standard identifiers");
Write_Line (" Mnnn check line length <= nnn 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 (" x check extra parens around conditionals");
Write_Switch_Char ("yN");
Write_Line ("Cancel all previously set style checks");
Write_Switch_Char ("z");
Write_Line ("Distribution stub generation (r/c for receiver/caller stubs)");
Write_Switch_Char ("Z");
Write_Line ("Use zero cost exception handling");
Write_Switch_Char ("83");
Write_Line ("Enforce Ada 83 restrictions");
Write_Switch_Char ("05");
Write_Line ("Allow Ada 2005 extensions");
end Usage;