Revert "Makefile.uk: Add flag to avoid gcc specifc symbol"

This reverts commit 4912487a42ec9ab1f7ab7bcca698c50a849eafa8.

__muldc3 is implemented by lib-compiler-rt for clang, and emitting calls
to it is normal. While -ffast-math prevents these calls, it also enables
unsafe optimizations that might result in wrong results from math
functions.

Signed-off-by: Andrei Tatar <andrei@unikraft.io>
Reviewed-by: Maria Sfiraiala <maria.sfiraiala@gmail.com>
Reviewed-by: Stefan Jumarea <stefanjumarea02@gmail.com>
Approved-by: Razvan Deaconescu <razvand@unikraft.io>
Tested-by: Unikraft CI <monkey@unikraft.io>
GitHub-Closes: #46

diff --git a/Makefile.uk b/Makefile.uk
index 11f39714a653035258586089993d3500d437e744..0d66cf0c914972133b04d186fa8aeb155bfe5746 100644 (file)
--- a/Makefile.uk
+++ b/Makefile.uk
@@ -141,9 +141,6 @@ LIBMUSL_CFLAGS-y += -Wno-missing-braces
 LIBMUSL_CFLAGS-$(call gcc_version_ge,8,0) += -Wno-cast-function-type
 LIBMUSL_CFLAGS-y += -Wno-format-contains-nul
 LIBMUSL_CFLAGS-y += -Wno-type-limits
-ifeq ($(CONFIG_LIBMUSL_COMPLEX),y)
-LIBMUSL_CFLAGS-$(call have_clang) += -ffast-math
-endif
 LIBMUSL_CFLAGS-y += -DUK_LIBC_SYSCALL=0
 LIBMUSL_CFLAGS-y += -D_XOPEN_SOURCE=700
 LIBMUSL_CFLAGS-y += $(LIBMUSL_HDRS_FLAGS-y)