From: Reshma Pattan Date: Thu, 2 May 2019 09:33:34 +0000 (+0100) Subject: mk: disable warning for packed member pointer X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=a385972c3675dd2b4792ab5b3cf7a536e6f9846c;p=dpdk.git mk: disable warning for packed member pointer gcc 9 on Fedora 30 gives an error "taking address of packed member may result in an unaligned pointer value" warnings. For clang builds this warning is already disabled, so disable "-Waddress-of-packed-member" for gcc builds also. Snippet of build error: lib/librte_eal/linux/eal/eal_memalloc.c: In function ‘alloc_seg_walk’: lib/librte_eal/linux/eal/eal_memalloc.c:768:12: error: taking address of packed member of ‘struct rte_mem_config’ may result in an unaligned pointer value [-Werror=address-of-packed-member] 768 | cur_msl = &mcfg->memsegs[msl_idx]; | ^~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Reshma Pattan Tested-by: David Marchand --- diff --git a/mk/toolchain/gcc/rte.vars.mk b/mk/toolchain/gcc/rte.vars.mk index d8b99faf6c..b852fcfd7e 100644 --- a/mk/toolchain/gcc/rte.vars.mk +++ b/mk/toolchain/gcc/rte.vars.mk @@ -87,5 +87,8 @@ WERROR_FLAGS += -Wimplicit-fallthrough=2 WERROR_FLAGS += -Wno-format-truncation endif +# disable packed member unalign warnings +WERROR_FLAGS += -Wno-address-of-packed-member + export CC AS AR LD OBJCOPY OBJDUMP STRIP READELF export TOOLCHAIN_CFLAGS TOOLCHAIN_LDFLAGS TOOLCHAIN_ASFLAGS