api docs: document that BUG() emits a trace2 error event

Correct documentation added in e544221d97a (trace2: Documentation/technical/api-trace2.txt, 2019-02-22) to state that calling BUG() also emits an "error" event. See ee4512ed481 (trace2: create new combined trace facility, 2019-02-22) for the initial implementation. The BUG() function did not emit an event then however, that was only changed later in 0a9dde4a04c (usage: trace2 BUG() invocations, 2021-02-05), that commit changed the code, but didn't update any of the docs. Let's also add a cross-reference from api-error-handling.txt. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Ævar Arnfjörð Bjarmason committed Apr 13, 2021 at 11:08 UTC f6d25d7878901f0ec9b7a9c07c584911fc0da2ff
2 files changed +4 -1
Documentation/technical/api-error-handling.txt
+3
index 71486abb2f..8be4f4d0d6 100644 --- a/Documentation/technical/api-error-handling.txt +++ b/Documentation/technical/api-error-handling.txt @@ -23,6 +23,9 @@ various kinds. without running into too many problems. Like `error`, it returns -1 after reporting the situation to the caller. +These reports will be logged via the trace2 facility. See the "error" +event in link:api-trace2.txt[trace2 API]. + Customizable error handlers ---------------------------
Documentation/technical/api-trace2.txt
+1 -1
index c65ffafc48..3f52f981a2 100644 --- a/Documentation/technical/api-trace2.txt +++ b/Documentation/technical/api-trace2.txt @@ -465,7 +465,7 @@ completed.) ------------ `"error"`:: - This event is emitted when one of the `error()`, `die()`, + This event is emitted when one of the `BUG()`, `error()`, `die()`, `warning()`, or `usage()` functions are called. + ------------