Hi Sorry for a long delay
On Wed, Jun 10, 2015 at 6:38 PM, Stefan Reinauer <[email protected]> wrote: > * Anatol Pomozov <[email protected]> [150531 08:49]: >> Hi >> >> I am trying to compile coreboot cbfstool on Arch where gcc 5.1 is used. And I >> see following compilation error. I wonder if it is coreboot or gcc issue. That's indeed looks like a false positive from GCC 5.1. And it happens only if "-O2" flag present. Here is what Ron proposed and it makes GCC happy again http://review.coreboot.org/#/c/10881/ >> >> ==> Starting build()... >> make: Entering directory >> '/home/anatol/sources/archpackages/coreboot-utils-git/ >> src/coreboot/util/cbfstool' >> mkdir -p ./ >> cc -D_FORTIFY_SOURCE=2 -D_DEFAULT_SOURCE -D_POSIX_C_SOURCE=200809L >> -Iflashmap >> -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong --param= >> ssp-buffer-size=4 -g3 -std=c99 -Werror -Wall -Wextra -Wcast-qual >> -Wmissing-prototypes -Wredundant-decls -Wshadow -Wstrict-prototypes >> -Wwrite-strings -c -o rmodule.o rmodule.c >> rmodule.c: In function ‘rmodule_create’: >> rmodule.c:286:29: error: ‘phdr’ may be used uninitialized in this function >> [-Werror=maybe-uninitialized] >> (phdr->p_vaddr + phdr->p_memsz))) { >> ^ >> rmodule.c:203:14: note: ‘phdr’ was declared here >> Elf64_Phdr *phdr; >> ^ >> cc1: all warnings being treated as errors >> Makefile:55: recipe for target 'rmodule.o' failed >> make: *** [rmodule.o] Error 1 >> make: Leaving directory >> '/home/anatol/sources/archpackages/coreboot-utils-git/ >> src/coreboot/util/cbfstool' >> ==> ERROR: A failure occurred in build(). > > Looks like a false positive. ctx-phdr only gets passed on if nelements > is 1, in which we know that phdr was set. > > Stefan > -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
