* sem_res.adb (Resolve_Selected_Component): do not generate a discriminant check if the selected component is a component of the argument of an initialization procedure. * trans.c (tree_transform, case of arithmetic operators): If result type is private, the gnu_type is the base type of the full view, given that the full view itself may be a subtype. * sem_res.adb: Minor reformatting * trans.c (tree_transform, case N_Real_Literal): Add missing third parameter in call to Machine (unknown horrible effects from this omission). * urealp.h: Add definition of Round_Even for call to Machine Add third parameter for Machine * sem_warn.adb (Check_One_Unit): Suppress warnings completely on predefined units in No_Run_Time mode. * misc.c (insn-codes.h): Now include. * a-except.adb: Preparation work for future integration of the GCC 3 exception handling mechanism (Notify_Handled_Exception, Notify_Unhandled_Exception): New routines to factorize previous code sequences and make them externally callable, e.g. for the Ada personality routine when the GCC 3 mechanism is used. (Propagate_Exception, Raise_Current_Excep, Raise_From_Signal_Handler): Use the new notification routines. * prj-tree.ads (First_Choice_Of): Document the when others case * bindgen.adb (Gen_Ada_Init_*): Set priority of environment task in HI-E mode, in order to support Ravenscar profile properly. * cstand.adb (Create_Standard): Duration is a 32 bit type in HI-E mode on 32 bits targets. * fmap.adb: Initial version. * fmap.ads: Initial version. * fname-uf.adb (Get_File_Name): Use mapping if unit name mapped. If search is successfully done, add to mapping. * frontend.adb: Initialize the mapping if a -gnatem switch was used. * make.adb: (Gnatmake): Add new local variable Mapping_File_Name. Create mapping file when using project file(s). Delete mapping file before exiting. * opt.ads (Mapping_File_Name): New variable * osint.adb (Find_File): Use path name found in mapping, if any. * prj-env.adb (Create_Mapping_File): New procedure * prj-env.ads (Create_Mapping_File): New procedure. * switch.adb (Scan_Front_End_Switches): Add processing for -gnatem (Mapping_File) * usage.adb: Add entry for new switch -gnatem. * Makefile.in: Add dependencies for fmap.o. * sem_ch10.adb (Analyze_With_Clause): Retrieve proper entity when unit is a package instantiation rewritten as a package body. (Install_Withed_Unit): Undo previous change, now redundant. * layout.adb: (Compute_Length): Move conversion to Unsigned to callers. (Get_Max_Size): Convert Len expression to Unsigned after calls to Compute_Length and Determine_Range. (Layout_Array_Type): Convert Len expression to Unsigned after calls to Compute_Length and Determine_Range. Above changes fix problem with length computation for supernull arrays where Max (Len, 0) wasn't getting applied due to the Unsigned conversion used by Compute_Length. * rtsfind.ads: (OK_To_Use_In_No_Run_Time_Mode): Allow Ada.Exceptions and System.Secondary_Stack. (OK_To_Use_In_Ravenscar_Mode): New table needed to implement Ravenscar in HI-E mode. Remove unused entity RE_Exception_Data. * rtsfind.adb (RTE): Allow Ravenscar Profile in HI mode. * rident.ads (No_Secondary_Stack): New restriction. From-SVN: r48168
412 lines
14 KiB
Ada
412 lines
14 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT COMPILER COMPONENTS --
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-- --
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-- U S A G E --
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-- --
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-- B o d y --
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-- --
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-- $Revision$
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-- --
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-- Copyright (C) 1992-2001, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 2, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNAT; see file COPYING. If not, write --
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-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
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-- MA 02111-1307, USA. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
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-- --
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------------------------------------------------------------------------------
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with Hostparm;
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with Namet; use Namet;
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with Osint; use Osint;
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with Output; use Output;
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with System.WCh_Con; use System.WCh_Con;
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procedure Usage is
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procedure Write_Switch_Char (Sw : String; Prefix : String := "gnat");
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-- Output two spaces followed by default switch character followed
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-- Prefix, followed by the string given as the argument, and then
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-- enough blanks to tab to column 13, i.e. assuming Sw is not longer
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-- than 5 characters, the maximum allowed, Write_Switch_Char will
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-- always output exactly 12 characters.
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procedure Write_Switch_Char (Sw : String; Prefix : String := "gnat") is
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begin
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Write_Str (" ");
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Write_Char (Switch_Character);
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Write_Str (Prefix);
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Write_Str (Sw);
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for J in 1 .. 12 - 3 - Prefix'Length - Sw'Length loop
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Write_Char (' ');
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end loop;
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end Write_Switch_Char;
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-- Start of processing for Usage
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begin
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Find_Program_Name;
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-- For gnatmake, we are appending this information to the end of
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-- the normal gnatmake output, so generate appropriate header
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if Name_Len >= 8
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and then (Name_Buffer (Name_Len - 7 .. Name_Len) = "gnatmake"
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or else
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Name_Buffer (Name_Len - 7 .. Name_Len) = "GNATMAKE")
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then
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Write_Eol;
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Write_Line ("Compiler switches (passed to the compiler by gnatmake):");
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else
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-- Usage line
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Write_Str ("Usage: ");
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Write_Program_Name;
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Write_Char (' ');
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Write_Str ("switches sfile");
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Write_Eol;
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Write_Eol;
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-- Line for sfile
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Write_Line (" sfile Source file name");
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end if;
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Write_Eol;
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-- Common GCC switches not available in JGNAT
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if not Hostparm.Java_VM then
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Write_Switch_Char ("fstack-check ", "");
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Write_Line ("Generate stack checking code");
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Write_Switch_Char ("fno-inline ", "");
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Write_Line ("Inhibit all inlining (makes executable smaller)");
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end if;
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-- Common switches available to both GCC and JGNAT
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Write_Switch_Char ("g ", "");
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Write_Line ("Generate debugging information");
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Write_Switch_Char ("Idir ", "");
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Write_Line ("Specify source files search path");
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Write_Switch_Char ("I- ", "");
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Write_Line ("Do not look for sources in current directory");
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Write_Switch_Char ("O[0123] ", "");
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Write_Line ("Control the optimization level");
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Write_Eol;
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-- Individual lines for switches. Write_Switch_Char outputs fourteen
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-- characters, so the remaining message is allowed to be a maximum
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-- of 65 characters to be comfortable on an 80 character device.
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-- If the Write_Str fits on one line, it is short enough!
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-- Line for -gnata switch
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Write_Switch_Char ("a");
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Write_Line ("Assertions enabled. Pragma Assert/Debug to be activated");
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-- Line for -gnatA switch
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Write_Switch_Char ("A");
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Write_Line ("Avoid processing gnat.adc, if present file will be ignored");
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-- Line for -gnatb switch
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Write_Switch_Char ("b");
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Write_Line ("Generate brief messages to stderr even if verbose mode set");
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-- Line for -gnatc switch
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Write_Switch_Char ("c");
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Write_Line ("Check syntax and semantics only (no code generation)");
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Write_Switch_Char ("C");
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Write_Line ("Compress names in external names and debug info tables");
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-- Line for -gnatd switch
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Write_Switch_Char ("d?");
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Write_Line ("Compiler debug option ? (a-z,A-Z,0-9), see debug.adb");
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-- Line for -gnatD switch
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Write_Switch_Char ("D");
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Write_Line ("Debug expanded generated code rather than source code");
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-- Line for -gnatec switch
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Write_Switch_Char ("ec?");
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Write_Line ("Specify configuration pragmas file, e.g. -gnatec/x/f.adc");
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-- Line for -gnatem switch
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Write_Switch_Char ("em?");
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Write_Line ("Specify mapping file, e.g. -gnatemmapping");
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-- Line for -gnatE switch
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Write_Switch_Char ("E");
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Write_Line ("Dynamic elaboration checking mode enabled");
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-- Line for -gnatf switch
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Write_Switch_Char ("f");
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Write_Line ("Full errors. Verbose details, all undefined references");
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-- Line for -gnatF switch
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Write_Switch_Char ("F");
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Write_Line ("Force all import/export external names to all uppercase");
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-- Line for -gnatg switch
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Write_Switch_Char ("g");
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Write_Line ("GNAT implementation mode (used for compiling GNAT units)");
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-- Line for -gnatG switch
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Write_Switch_Char ("G");
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Write_Line ("Output generated expanded code in source form");
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-- Line for -gnath switch
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Write_Switch_Char ("h");
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Write_Line ("Output this usage (help) information");
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-- Line for -gnati switch
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Write_Switch_Char ("i?");
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Write_Line ("Identifier char set (?=1/2/3/4/5/8/p/f/n/w)");
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-- Line for -gnatk switch
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Write_Switch_Char ("k");
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Write_Line ("Limit file names to nnn characters (k = krunch)");
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-- Line for -gnatl switch
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Write_Switch_Char ("l");
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Write_Line ("Output full source listing with embedded error messages");
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-- Line for -gnatL switch
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Write_Switch_Char ("L");
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Write_Line ("Use longjmp/setjmp for exception handling");
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-- Line for -gnatm switch
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Write_Switch_Char ("mnnn");
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Write_Line ("Limit number of detected errors to nnn (1-999)");
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-- Line for -gnatn switch
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Write_Switch_Char ("n");
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Write_Line ("Inlining of subprograms (apply pragma Inline across units)");
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-- Line for -gnatN switch
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Write_Switch_Char ("N");
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Write_Line ("Full (frontend) inlining of subprograqms");
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-- Line for -gnato switch
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Write_Switch_Char ("o");
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Write_Line ("Enable overflow checking (off by default)");
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-- Line for -gnatO switch
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Write_Switch_Char ("O nm ");
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Write_Line ("Set name of output ali file (internal switch)");
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-- Line for -gnatp switch
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Write_Switch_Char ("p");
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Write_Line ("Suppress all checks");
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-- Line for -gnatP switch
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Write_Switch_Char ("P");
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Write_Line ("Generate periodic calls to System.Polling.Poll");
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-- Line for -gnatq switch
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Write_Switch_Char ("q");
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Write_Line ("Don't quit, try semantics, even if parse errors");
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-- Line for -gnatQ switch
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Write_Switch_Char ("Q");
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Write_Line ("Don't quit, write ali/tree file even if compile errors");
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-- Line for -gnatR switch
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Write_Switch_Char ("R?");
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Write_Line ("List rep inf (?=0/1/2/3 for none/types/all/variable)");
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-- Lines for -gnats switch
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Write_Switch_Char ("s");
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Write_Line ("Syntax check only");
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-- Lines for -gnatt switch
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Write_Switch_Char ("t");
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Write_Line ("Tree output file to be generated");
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-- Line for -gnatT switch
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Write_Switch_Char ("Tnnn");
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Write_Line ("All compiler tables start at nnn times usual starting size");
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-- Line for -gnatu switch
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Write_Switch_Char ("u");
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Write_Line ("List units for this compilation");
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-- Line for -gnatU switch
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Write_Switch_Char ("U");
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Write_Line ("Enable unique tag for error messages");
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-- Line for -gnatv switch
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Write_Switch_Char ("v");
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Write_Line ("Verbose mode. Full error output with source lines to stdout");
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-- Line for -gnatV switch
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Write_Switch_Char ("Vxx");
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Write_Line
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("Enable selected validity checking mode, xx = list of parameters:");
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Write_Line (" a turn on all validity checking options");
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Write_Line (" c turn on validity checking for copies");
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Write_Line (" C turn off validity checking for copies");
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Write_Line (" f turn on validity checking for floating-point");
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Write_Line (" F turn off validity checking for floating-point");
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Write_Line (" i turn on validity checking for in params");
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Write_Line (" I turn off validity checking for in params");
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Write_Line (" m turn on validity checking for in out params");
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Write_Line (" M turn off validity checking for in out params");
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Write_Line (" r turn on validity checking for returns");
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Write_Line (" R turn off validity checking for returns");
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Write_Line (" s turn on validity checking for subscripts");
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Write_Line (" S turn off validity checking for subscripts");
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Write_Line (" t turn on validity checking for tests");
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Write_Line (" T turn off validity checking for tests");
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Write_Line (" n turn off all validity checks (including RM)");
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-- Lines for -gnatw switch
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Write_Switch_Char ("wxx");
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Write_Line ("Enable selected warning modes, xx = list of parameters:");
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Write_Line (" a turn on all optional warnings (except b,h)");
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Write_Line (" A turn off all optional warnings");
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Write_Line (" b turn on biased rounding warnings");
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Write_Line (" B turn off biased rounding warnings");
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Write_Line (" c turn on constant conditional warnings");
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Write_Line (" C* turn off constant conditional warnings");
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Write_Line (" e treat all warnings as errors");
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Write_Line (" h turn on warnings for hiding variables");
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Write_Line (" H* turn off warnings for hiding variables");
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Write_Line (" i* turn on warnings for implementation units");
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Write_Line (" I turn off warnings for implementation units");
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Write_Line (" l turn on elaboration warnings");
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Write_Line (" L* turn off elaboration warnings");
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Write_Line (" o* turn on address clause overlay warnings");
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Write_Line (" O turn off address clause overlay warnings");
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Write_Line (" p turn on warnings for ineffective pragma inline");
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Write_Line (" P* turn off warnings for ineffective pragma inline");
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Write_Line (" r turn on redundant construct warnings");
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Write_Line (" R* turn off redundant construct warnings");
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Write_Line (" s suppress all warnings");
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Write_Line (" u turn on warnings for unused entities");
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Write_Line (" U* turn off warnings for unused entities");
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Write_Line (" * indicates default in above list");
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-- Line for -gnatW switch
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Write_Switch_Char ("W");
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Write_Str ("Wide character encoding method (");
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for J in WC_Encoding_Method loop
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Write_Char (WC_Encoding_Letters (J));
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if J = WC_Encoding_Method'Last then
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Write_Char (')');
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else
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Write_Char ('/');
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end if;
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end loop;
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Write_Eol;
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-- Line for -gnatx switch
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Write_Switch_Char ("x");
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Write_Line ("Suppress output of cross-reference information");
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-- Line for -gnatX switch
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Write_Switch_Char ("X");
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Write_Line ("Language extensions permitted");
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-- Lines for -gnaty switch
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Write_Switch_Char ("y");
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Write_Line ("Enable all style checks except 'o', indent=3");
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Write_Switch_Char ("yxx");
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Write_Line ("Enable selected style checks xx = list of parameters:");
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Write_Line (" 1-9 check indentation");
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Write_Line (" a check attribute casing");
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Write_Line (" b check no blanks at end of lines");
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Write_Line (" c check comment format");
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Write_Line (" e check end/exit labels present");
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Write_Line (" f check no form feeds/vertical tabs in source");
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Write_Line (" h check no horizontal tabs in source");
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Write_Line (" i check if-then layout");
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Write_Line (" k check casing rules for keywords, identifiers");
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Write_Line (" l check reference manual layout");
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Write_Line (" m check line length <= 79 characters");
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Write_Line (" n check casing of package Standard identifiers");
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Write_Line (" Mnnn check line length <= nnn characters");
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Write_Line (" o check subprogram bodies in alphabetical order");
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Write_Line (" p check pragma casing");
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Write_Line (" r check RM column layout");
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Write_Line (" s check separate subprogram specs present");
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Write_Line (" t check token separation rules");
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-- Lines for -gnatz switch
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Write_Switch_Char ("z");
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Write_Line ("Distribution stub generation (r/s for receiver/sender stubs)");
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-- Line for -gnatZ switch
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Write_Switch_Char ("Z");
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Write_Line ("Use zero cost exception handling");
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-- Line for -gnat83 switch
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Write_Switch_Char ("83");
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Write_Line ("Enforce Ada 83 restrictions");
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end Usage;
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