From 79bea6cf60665c4a17a5066a2043b05aa45eca85 Mon Sep 17 00:00:00 2001 From: Giulio Benetti Date: Fri, 14 Jun 2019 23:03:45 +0200 Subject: [PATCH] package/sqlite: work around build timeout on Microblaze With Microblaze Gcc version 4.9 build hangs due to a bug discovered for Gcc 4.9 only. Since Gcc 4.9 is not maintaned anymore it doesn't make sense to report this bug in Gcc bugzilla and use BR2_TOOLCHAIN_HAS_GCC_BUG_. So let's check if we're building for Microblaze with Gcc version < 5.x and work around the bug forcing the use of -O0. To reproduce this bug build with following defconfig: ' BR2_microblazeel=y BR2_ENABLE_DEBUG=y BR2_OPTIMIZE_2=y BR2_KERNEL_HEADERS_5_0=y BR2_TOOLCHAIN_BUILDROOT_LOCALE=y BR2_GCC_VERSION_4_9_X=y BR2_TOOLCHAIN_BUILDROOT_CXX=y BR2_TOOLCHAIN_BUILDROOT_FORTRAN=y BR2_GCC_ENABLE_LTO=y BR2_PACKAGE_SQLITE=y ' Signed-off-by: Giulio Benetti Signed-off-by: Thomas Petazzoni --- package/sqlite/sqlite.mk | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/package/sqlite/sqlite.mk b/package/sqlite/sqlite.mk index 7e97c966b7..d4cdefe34d 100644 --- a/package/sqlite/sqlite.mk +++ b/package/sqlite/sqlite.mk @@ -39,8 +39,14 @@ ifeq ($(BR2_PACKAGE_SQLITE_NO_SYNC),y) SQLITE_CFLAGS += -DSQLITE_NO_SYNC endif +# Building with Microblaze Gcc 4.9 makes compiling to hang. +# Work around using -O0 +ifeq ($(BR2_microblaze):$(BR2_TOOLCHAIN_GCC_AT_LEAST_5),y:) +SQLITE_CFLAGS += $(TARGET_CFLAGS) -O0 +else # fallback to standard -O3 when -Ofast is present to avoid -ffast-math SQLITE_CFLAGS += $(subst -Ofast,-O3,$(TARGET_CFLAGS)) +endif SQLITE_CONF_ENV = CFLAGS="$(SQLITE_CFLAGS)" -- 2.30.2