From f4b5aa022371edd2a1de8015ba21847971cc2d20 Mon Sep 17 00:00:00 2001 From: rth Date: Mon, 8 Oct 2001 17:09:23 +0000 Subject: [PATCH] * comperr.adb (Abort_In_Progress): New. (Compiler_Abort): Use it to prevent recursion. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@46082 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ada/ChangeLog | 5 +++++ gcc/ada/comperr.adb | 18 +++++++++++++++++- 2 files changed, 22 insertions(+), 1 deletion(-) diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog index 8801866..c7138f7 100644 --- a/gcc/ada/ChangeLog +++ b/gcc/ada/ChangeLog @@ -1,3 +1,8 @@ +2001-10-08 Richard Henderson + + * comperr.adb (Abort_In_Progress): New. + (Compiler_Abort): Use it to prevent recursion. + 2001-10-08 Robert Dewar * atree.adb: Set Error_Posted in Error node, helps error recovery. diff --git a/gcc/ada/comperr.adb b/gcc/ada/comperr.adb index e92e0c4..b3d868f 100644 --- a/gcc/ada/comperr.adb +++ b/gcc/ada/comperr.adb @@ -6,7 +6,7 @@ -- -- -- B o d y -- -- -- --- $Revision: 1.57 $ +-- $Revision: 1.1 $ -- -- -- Copyright (C) 1992-2001 Free Software Foundation, Inc. -- -- -- @@ -51,6 +51,14 @@ with System.Soft_Links; use System.Soft_Links; package body Comperr is + ---------------- + -- Local Data -- + ---------------- + + Abort_In_Progress : Boolean := False; + -- Used to prevent runaway recursion if something segfaults + -- while processing a previous abort. + ----------------------- -- Local Subprograms -- ----------------------- @@ -82,6 +90,14 @@ package body Comperr is -- Start of processing for Compiler_Abort begin + -- Prevent recursion through Compiler_Abort, e.g. via SIGSEGV. + + if Abort_In_Progress then + Exit_Program (E_Abort); + end if; + + Abort_In_Progress := True; + -- If errors have already occured, then we guess that the abort may -- well be caused by previous errors, and we don't make too much fuss -- about it, since we want to let the programmer fix the errors first. -- 2.7.4