The old implementation for __cxa_guard_acquire did not return 1,
therefore dynamic initialization was never performed.
If concurrent-safe dynamic initialisation is ever needed, CXX ABI
must be followed when re-implementing __cxa_guard_acquire (et al.)
---
winsup/cygwin/Makefile.in | 2 +-
winsup/cygwin/cxx.cc | 10 ----------
2 files changed, 1 insertion(+), 11 deletions(-)
diff --git a/winsup/cygwin/Makefile.in b/winsup/cygwin/Makefile.in
index a840f2b83..73d9b37fd 100644
--- a/winsup/cygwin/Makefile.in
+++ b/winsup/cygwin/Makefile.in
@@ -69,7 +69,7 @@ COMMON_CFLAGS=-MMD ${$(*F)_CFLAGS} -Wimplicit-fallthrough=5
-Werror -fmerge-cons
ifeq ($(target_cpu),x86_64)
COMMON_CFLAGS+=-mcmodel=small
endif
-COMPILE.cc+=${COMMON_CFLAGS} # -std=gnu++14
+COMPILE.cc+=${COMMON_CFLAGS} -fno-threadsafe-statics # -std=gnu++14
COMPILE.c+=${COMMON_CFLAGS}
AR:=@AR@
diff --git a/winsup/cygwin/cxx.cc b/winsup/cygwin/cxx.cc
index be3268549..b69524aca 100644
--- a/winsup/cygwin/cxx.cc
+++ b/winsup/cygwin/cxx.cc
@@ -83,16 +83,6 @@ __cxa_pure_virtual (void)
api_fatal ("pure virtual method called");
}
-extern "C" void
-__cxa_guard_acquire ()
-{
-}
-
-extern "C" void
-__cxa_guard_release ()
-{
-}
-
/* These routines are made available as last-resort fallbacks
for the application. Should not be used in practice; the
entries in this struct get overwritten by each DLL as it
--
2.29.2
