From: Ronan Desplanques <desplanq...@adacore.com> This patch removes a few dangling references to the late front-end implementation of exceptions from the comments of targparm.ads, and also fixes a thinko there.
gcc/ada/ * targparm.ads: Remove references to front-end-based exceptions. Fix thinko. Tested on x86_64-pc-linux-gnu, committed on master. --- gcc/ada/targparm.ads | 25 +++++-------------------- 1 file changed, 5 insertions(+), 20 deletions(-) diff --git a/gcc/ada/targparm.ads b/gcc/ada/targparm.ads index aa91ee60e82..01ee492e015 100644 --- a/gcc/ada/targparm.ads +++ b/gcc/ada/targparm.ads @@ -213,22 +213,7 @@ package Targparm is -- Control of Exception Handling -- ----------------------------------- - -- GNAT implements three methods of implementing exceptions: - - -- Front-End Longjmp/Setjmp Exceptions - - -- This approach uses longjmp/setjmp to handle exceptions. It - -- uses less storage, and can often propagate exceptions faster, - -- at the expense of (sometimes considerable) overhead in setting - -- up an exception handler. - - -- The generation of the setjmp and longjmp calls is handled by - -- the front end of the compiler (this includes gigi in the case - -- of the standard GCC back end). It does not use any back end - -- support (such as the GCC3 exception handling mechanism). When - -- this approach is used, the compiler generates special exception - -- handlers for handling cleanups (AT-END actions) when an exception - -- is raised. + -- GNAT provides two methods of implementing exceptions: -- Back-End Zero Cost Exceptions @@ -254,10 +239,10 @@ package Targparm is -- Control of Available Methods and Defaults - -- The following switches specify whether we're using a front-end or a - -- back-end mechanism and whether this is a zero-cost or a sjlj scheme. + -- The following switch specifies whether this is a zero-cost or a sjlj + -- scheme. - -- The per-switch default values correspond to the default value of + -- The default value corresponds to the default value of -- Opt.Exception_Mechanism. ZCX_By_Default_On_Target : Boolean := False; @@ -408,7 +393,7 @@ package Targparm is -- Control of Stack Checking -- ------------------------------- - -- GNAT provides three methods of implementing exceptions: + -- GNAT provides three methods of implementing stack checking: -- GCC Probing Mechanism -- 2.40.0