diff options
Diffstat (limited to 'toolchain')
| -rw-r--r-- | toolchain/helpers.mk | 2 | ||||
| -rw-r--r-- | toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in | 1 | ||||
| -rw-r--r-- | toolchain/toolchain-wrapper.c | 3 | ||||
| -rw-r--r-- | toolchain/toolchain-wrapper.mk | 6 | ||||
| -rw-r--r-- | toolchain/toolchain/toolchain.mk | 12 |
5 files changed, 16 insertions, 8 deletions
diff --git a/toolchain/helpers.mk b/toolchain/helpers.mk index 63ef6fb4b0..1792286add 100644 --- a/toolchain/helpers.mk +++ b/toolchain/helpers.mk @@ -421,7 +421,7 @@ check_unusable_toolchain = \ # check_toolchain_ssp = \ __CROSS_CC=$(strip $1) ; \ - __HAS_SSP=`echo 'void main(){}' | $${__CROSS_CC} -fstack-protector -x c - -o $(BUILD_DIR)/.br-toolchain-test.tmp >/dev/null 2>&1 && echo y` ; \ + __HAS_SSP=`echo 'void main(){}' | $${__CROSS_CC} -Werror -fstack-protector -x c - -o $(BUILD_DIR)/.br-toolchain-test.tmp >/dev/null 2>&1 && echo y` ; \ if [ "$(BR2_TOOLCHAIN_HAS_SSP)" != "y" -a "$${__HAS_SSP}" = "y" ] ; then \ echo "SSP support available in this toolchain, please enable BR2_TOOLCHAIN_EXTERNAL_HAS_SSP" ; \ exit 1 ; \ diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in b/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in index 7563995eb6..4ac9c95c86 100644 --- a/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in +++ b/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in @@ -5,7 +5,6 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86" depends on !BR2_STATIC_LIBS select BR2_TOOLCHAIN_EXTERNAL_GLIBC - select BR2_TOOLCHAIN_HAS_SSP select BR2_TOOLCHAIN_HAS_NATIVE_RPC select BR2_INSTALL_LIBSTDCPP select BR2_HOSTARCH_NEEDS_IA32_LIBS diff --git a/toolchain/toolchain-wrapper.c b/toolchain/toolchain-wrapper.c index 2928ea42d0..c5eb813dd0 100644 --- a/toolchain/toolchain-wrapper.c +++ b/toolchain/toolchain-wrapper.c @@ -82,6 +82,9 @@ static char *predef_args[] = { #ifdef BR_NO_FUSED_MADD "-mno-fused-madd", #endif +#ifdef BR_FP_CONTRACT_OFF + "-ffp-contract=off", +#endif #ifdef BR_BINFMT_FLAT "-Wl,-elf2flt", #endif diff --git a/toolchain/toolchain-wrapper.mk b/toolchain/toolchain-wrapper.mk index 7f72a0cade..6e95545ebf 100644 --- a/toolchain/toolchain-wrapper.mk +++ b/toolchain/toolchain-wrapper.mk @@ -28,8 +28,14 @@ endif # Avoid FPU bug on XBurst CPUs ifeq ($(BR2_mips_xburst),y) +# Before gcc 4.6, -mno-fused-madd was needed, after -ffp-contract is +# needed +ifeq ($(BR2_TOOLCHAIN_GCC_AT_LEAST_4_6),y) +TOOLCHAIN_WRAPPER_ARGS += -DBR_FP_CONTRACT_OFF +else TOOLCHAIN_WRAPPER_ARGS += -DBR_NO_FUSED_MADD endif +endif ifeq ($(BR2_CCACHE_USE_BASEDIR),y) TOOLCHAIN_WRAPPER_ARGS += -DBR_CCACHE_BASEDIR='"$(BASE_DIR)"' diff --git a/toolchain/toolchain/toolchain.mk b/toolchain/toolchain/toolchain.mk index b55b0c712c..179c09edf1 100644 --- a/toolchain/toolchain/toolchain.mk +++ b/toolchain/toolchain/toolchain.mk @@ -13,18 +13,18 @@ endif TOOLCHAIN_ADD_TOOLCHAIN_DEPENDENCY = NO # Apply a hack that Rick Felker suggested[1] to avoid conflicts between libc -# headers and kernel headers. This is a temporary measure until musl finds a -# better solution. +# headers and kernel headers. This is needed for kernel headers older than +# 4.15. Kernel headers 4.15 and newer don't require __GLIBC__ to be defined. # # Augment the original suggestion with __USE_MISC since recent kernels -# require this glibc internal macro. Also, as musl defines IFF_LOWER_UP, -# IFF_DORMANT and IFF_ECHO, add another macro to suppress them in the -# kernel header, and avoid macro/enum conflict. +# (older than 4.15) require this glibc internal macro. Also, as musl defines +# IFF_LOWER_UP, IFF_DORMANT and IFF_ECHO, add another macro to suppress +# them in the kernel header, and avoid macro/enum conflict. # # Kernel version 3.12 introduced the libc-compat.h header. # # [1] http://www.openwall.com/lists/musl/2015/10/08/2 -ifeq ($(BR2_TOOLCHAIN_USES_MUSL)$(BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12),yy) +ifeq ($(BR2_TOOLCHAIN_USES_MUSL)$(BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12):$(BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_15),yy:) define TOOLCHAIN_MUSL_KERNEL_HEADERS_COMPATIBILITY_HACK $(SED) 's/^#if defined(__GLIBC__)$$/#if 1/' \ $(STAGING_DIR)/usr/include/linux/libc-compat.h |
