From: "luizluca at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: elfutils-devel@sourceware.org
Subject: [Bug general/21011] "may be used uninitialized" error with -Werror=maybe-uninitialized
Date: Mon, 17 Apr 2017 19:51:00 -0000 [thread overview]
Message-ID: <bug-21011-10460-hsODLmRGjI@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-21011-10460@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=21011
--- Comment #9 from Luiz Angelo Daros de Luca <luizluca at gmail dot com> ---
./configure is called as:
AR="i486-openwrt-linux-musl-gcc-ar" AS="i486-openwrt-linux-musl-gcc -c -Os
-pipe -march=pentium4 -fno-caller-saves -fno-plt -fhonour-copts
-Wno-error=unused-but-set-variable -Wno-error=unused-result
-iremap/home/REDETRESC/luizluca/prog-local/lede/trunk/build_dir/target-i386_pentium4_musl/elfutils-0.168:elfutils-0.168
-Wformat -Werror=format-security -fstack-protector -D_FORTIFY_SOURCE=1
-Wl,-z,now -Wl,-z,relro
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libiconv-stub/include
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libintl-stub/include
-D_GNU_SOURCE" LD=i486-openwrt-linux-musl-ld
NM="i486-openwrt-linux-musl-gcc-nm" CC="i486-openwrt-linux-musl-gcc"
GCC="i486-openwrt-linux-musl-gcc" CXX="i486-openwrt-linux-musl-g++"
RANLIB="i486-openwrt-linux-musl-gcc-ranlib" STRIP=i486-openwrt-linux-musl-strip
OBJCOPY=i486-openwrt-linux-musl-objcopy OBJDUMP=i486-openwrt-linux-musl-objdump
SIZE=i486-openwrt-linux-musl-size CFLAGS="-Os -pipe -march=pentium4
-fno-caller-saves -fno-plt -fhonour-copts -Wno-error=unused-but-set-variable
-Wno-error=unused-result
-iremap/home/REDETRESC/luizluca/prog-local/lede/trunk/build_dir/target-i386_pentium4_musl/elfutils-0.168:elfutils-0.168
-Wformat -Werror=format-security -fstack-protector -D_FORTIFY_SOURCE=1
-Wl,-z,now -Wl,-z,relro
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libiconv-stub/include
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libintl-stub/include
-D_GNU_SOURCE " CXXFLAGS="-Os -pipe -march=pentium4 -fno-caller-saves -fno-plt
-fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result
-iremap/home/REDETRESC/luizluca/prog-local/lede/trunk/build_dir/target-i386_pentium4_musl/elfutils-0.168:elfutils-0.168
-Wformat -Werror=format-security -fstack-protector -D_FORTIFY_SOURCE=1
-Wl,-z,now -Wl,-z,relro
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libiconv-stub/include
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libintl-stub/include
-D_GNU_SOURCE "
CPPFLAGS="-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/include
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/include
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/toolchain-i386_pentium4_gcc-5.4.0_musl/usr/include
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/toolchain-i386_pentium4_gcc-5.4.0_musl/include/fortify
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/toolchain-i386_pentium4_gcc-5.4.0_musl/include
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libiconv-stub/include
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libintl-stub/include
"
LDFLAGS="-L/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib
-L/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/lib
-L/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/toolchain-i386_pentium4_gcc-5.4.0_musl/usr/lib
-L/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/toolchain-i386_pentium4_gcc-5.4.0_musl/lib
-znow -zrelro
-L/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libiconv-stub/lib
-Wl,-rpath-link=/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libiconv-stub/lib
-L/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libintl-stub/lib
-Wl,-rpath-link=/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libintl-stub/lib
" LIBS="-largp" ./configure --target=i486-openwrt-linux
--host=i486-openwrt-linux --build=x86_64-pc-linux-gnu --program-prefix=""
--program-suffix="" --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin
--sbindir=/usr/sbin --libexecdir=/usr/lib --sysconfdir=/etc
--datadir=/usr/share --localstatedir=/var --mandir=/usr/man --infodir=/usr/info
--disable-nls --without-lzma
My GCC is:
i486-openwrt-linux-musl-gcc --version
i486-openwrt-linux-musl-gcc (LEDE GCC 5.4.0 r3621-357efba9bb) 5.4.0
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
This is my gcc call that fails:
i486-openwrt-linux-musl-gcc -D_GNU_SOURCE -DHAVE_CONFIG_H
-DLOCALEDIR='"/usr/share/locale"' -I. -I.. -I. -I. -I../lib -I..
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/include
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/include
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/toolchain-i386_pentium4_gcc-5.4.0_musl/usr/include
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/toolchain-i386_pentium4_gcc-5.4.0_musl/include/fortify
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/toolchain-i386_pentium4_gcc-5.4.0_musl/include
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libiconv-stub/include
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libintl-stub/include
-std=gnu99 -Wall -Wshadow -Wformat=2 -Wold-style-definition
-Wstrict-prototypes -Wlogical-op -Werror -Wunused -Wextra
-Wstack-usage=262144 -Os -pipe -march=pentium4 -fno-caller-saves -fno-plt
-fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result
-iremap/home/REDETRESC/luizluca/prog-local/lede/trunk/build_dir/target-i386_pentium4_musl/elfutils-0.168:elfutils-0.168
-Wformat -Werror=format-security -fstack-protector -D_FORTIFY_SOURCE=1
-Wl,-z,now -Wl,-z,relro
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libiconv-stub/include
-I/home/REDETRESC/luizluca/prog-local/lede/trunk/staging_dir/target-i386_pentium4_musl/usr/lib/libintl-stub/include
-D_GNU_SOURCE -DBAD_FTS=1 -MT elf_getarsym.o -MD -MP -MF
.deps/elf_getarsym.Tpo -c -o elf_getarsym.o elf_getarsym.c
elf_getarsym.c: In function 'elf_getarsym':
elf_getarsym.c:206:11: error: 'n' may be used uninitialized in this function
[-Werror=maybe-uninitialized]
size_t sz = n * w;
--
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next prev parent reply other threads:[~2017-04-17 19:51 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-30 21:38 [Bug general/21011] New: " luizluca at gmail dot com
2016-12-30 23:14 ` [Bug general/21011] " luizluca at gmail dot com
2016-12-30 23:20 ` pmachata at gmail dot com
2016-12-31 15:54 ` mjw at redhat dot com
2017-03-28 11:48 ` mark at klomp dot org
2017-04-04 5:37 ` luizluca at gmail dot com
2017-04-04 5:37 ` luizluca at gmail dot com
2017-04-04 5:38 ` luizluca at gmail dot com
2017-04-11 11:34 ` mark at klomp dot org
2017-04-17 19:51 ` luizluca at gmail dot com [this message]
2017-04-19 14:54 ` mark at klomp dot org
2017-04-19 15:14 ` mark at klomp dot org
2017-04-19 19:50 ` luizluca at gmail dot com
2017-04-19 19:58 ` mark at klomp dot org
2017-04-19 20:07 ` luizluca at gmail dot com
2017-04-25 3:38 ` mark at klomp dot org
2017-04-25 12:15 ` mark at klomp dot org
2017-04-25 12:49 ` luizluca at gmail dot com
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