From 43db836ea4fb19036a19f78e1f988f75a42b910c Mon Sep 17 00:00:00 2001 From: Bernhard Schommer Date: Tue, 17 Jan 2017 09:49:04 +0100 Subject: Added backtrace handler. If CompCert crashes because of an uncaught exception the exception is caught toplevel and the backtrace is printed plus an additional message to include the backtrace in a support request, if buildnr and tag are available. Bug 20681. --- cparser/Cerrors.ml | 16 ++++++++++++++++ cparser/Cerrors.mli | 3 +++ 2 files changed, 19 insertions(+) (limited to 'cparser') diff --git a/cparser/Cerrors.ml b/cparser/Cerrors.ml index 612980f1..e7b21dbb 100644 --- a/cparser/Cerrors.ml +++ b/cparser/Cerrors.ml @@ -321,3 +321,19 @@ let warning_help = "Diagnostic options:\n\ let raise_on_errors () = if !num_errors > 0 then raise Abort + +let crash exn = + if Version.buildnr <> "" && Version.tag <> "" then begin + eprintf "%tThis is CompCert, Release:%s, Build:%s, Tag:%s%t\n" + bc Version.version Version.buildnr Version.tag rsc; + eprintf "Backtrace (please include this in your support request):\n%s" + (Printexc.get_backtrace ()); + eprintf "%tUncaught exception:%s.\n\ +\ Please report this problem to our support.\n\ +\ Error occurred in Build: %s, Tag: %s.\n%t" + rc (Printexc.to_string exn) Version.buildnr Version.tag rsc; + exit 2 + end else begin + Printexc.print_backtrace stderr; + exit 2 + end diff --git a/cparser/Cerrors.mli b/cparser/Cerrors.mli index 8501cfa0..b2350db6 100644 --- a/cparser/Cerrors.mli +++ b/cparser/Cerrors.mli @@ -72,3 +72,6 @@ val warning_options : (Commandline.pattern * Commandline.action) list (** List of all options for diagnostics *) val raise_on_errors : unit -> unit + +val crash: exn -> unit +(** Report the backtrace of the last exception and exit *) -- cgit