From c41616494e7cea6a738d8850f490c8935febf364 Mon Sep 17 00:00:00 2001 From: Bruno Haible Date: Sat, 6 Dec 2008 16:50:32 +0100 Subject: [PATCH] Add comments. --- ChangeLog | 5 +++++ lib/c-stack.h | 5 ++++- 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/ChangeLog b/ChangeLog index d37da3ba8..f6ed8158c 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,10 @@ 2008-12-06 Bruno Haible + * lib/c-stack.h (c_stack_action): Clarify possible side effects. + Suggested by Eric Blake. + +2008-12-06 Bruno Haible + Fix a c-stack test failure on MacOS X. * m4/c-stack.m4 (AC_SYS_XSI_STACK_OVERFLOW_HEURISTIC): Require AC_CANONICAL_HOST. Define FAULT_YIELDS_SIGBUS. If set, install a signal diff --git a/lib/c-stack.h b/lib/c-stack.h index 8c06541fd..e1e0a6e44 100644 --- a/lib/c-stack.h +++ b/lib/c-stack.h @@ -36,6 +36,9 @@ ACTION must be async-signal-safe. ACTION together with its callees must not require more than SIGSTKSZ bytes of stack space. Also, ACTION should not call longjmp, because this implementation does - not guarantee that it is safe to return to the original stack. */ + not guarantee that it is safe to return to the original stack. + + This function may install a handler for the SIGSEGV signal or for the SIGBUS + signal or exercise other system dependent exception handling APIs. */ extern int c_stack_action (void (* /*action*/) (int)); -- 2.11.0