From: Pierre-Marie de Rodat <derodat@adacore.com>
To: gcc-patches@gcc.gnu.org
Cc: Etienne Servais <servais@adacore.com>
Subject: [Ada] Initialize Current_Source_Unit
Date: Tue, 9 Nov 2021 09:46:12 +0000 [thread overview]
Message-ID: <20211109094612.GA830765@adacore.com> (raw)
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Preprocessing may call Error_Msg though Current_Source_Unit is not
initialized. When gnat1 is compiled with gnatVa, this leads to a
Constraint_Error.
Tested on x86_64-pc-linux-gnu, committed on trunk
gcc/ada/
* sinput.ads: Initialize Current_Source_Unit to No_Unit.
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diff --git a/gcc/ada/sinput.ads b/gcc/ada/sinput.ads
--- a/gcc/ada/sinput.ads
+++ b/gcc/ada/sinput.ads
@@ -412,10 +412,10 @@ package Sinput is
-- Initialized so that some tools (such as gprbuild) can be built with
-- -gnatVa and pragma Initialize_Scalars without problems.
- Current_Source_Unit : Unit_Number_Type;
- -- Unit number of source file currently being scanned. The special value
- -- of No_Unit indicates that the configuration pragma file is currently
- -- being scanned (this has no entry in the unit table).
+ Current_Source_Unit : Unit_Number_Type := No_Unit;
+ -- Unit number of source file currently being scanned. Initialized to
+ -- No_Unit for pre-processing and the configuration pragma file scanning,
+ -- since both stages have no corresponding entry in the unit table.
Source_gnat_adc : Source_File_Index := No_Source_File;
-- This is set if a gnat.adc file is present to reference this file
reply other threads:[~2021-11-09 9:46 UTC|newest]
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