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authorBen Wijen <ben@wijen.net>2021-01-15 14:45:29 +0100
committerCorinna Vinschen <corinna@vinschen.de>2021-01-18 12:22:53 +0100
commit9e88e840c2062ee1492e303da5fc696eec849328 (patch)
treef4b3da83363ef688fe5dcafecdad8caaddca3fbd
parentcbeb1009a9faa966821190a4a83d4a120aefd753 (diff)
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cxx.cc: Fix dynamic initialization for static local variables
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.)
-rw-r--r--winsup/cygwin/Makefile.in2
-rw-r--r--winsup/cygwin/cxx.cc10
2 files changed, 1 insertions, 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