On 2020-02-22 09:54, Stijn Tintel wrote: > On 20/02/2020 11:56, Petr Štetiar wrote: >> This activates PIE ASLR support by default when the regular option is >> selected. >> > Unfortunately this seems to break build on x86/64: > > x86_64-openwrt-linux-musl-gcc -O2 -pipe -fno-caller-saves -fno-plt > -fhonour-copts -Wno-error=unused-but-set-variable > -Wno-error=unused-result > -ffile-prefix-map=/home/stijn/Development/LEDE/source/build_dir/target-x86_64_musl/linux-x86_64/ppp-default/ppp-2.4.8=ppp-2.4.8 > -Wformat -Werror=format-security -fpic -fstack-protector-strong > -D_FORTIFY_SOURCE=2 -Wl,-z,now -Wl,-z,relro -ffunction-sections > -fdata-sections -flto -DHAVE_PATHS_H -DHAVE_MMAP -I../include > '-DDESTDIR="/usr"' -DCHAPMS=1 -DMPPE=1 -DHAS_SHADOW -DHAVE_CRYPT_H=1 > -DUSE_CRYPT=1 -DPLUGIN -DPPP_FILTER -DPPP_PRECOMPILED_FILTER > -I/home/stijn/Development/LEDE/source/staging_dir/target-x86_64_musl/usr/include > -DINET6=1 -DMAXOCTETS > -L/home/stijn/Development/LEDE/source/staging_dir/target-x86_64_musl/usr/lib > -L/home/stijn/Development/LEDE/source/staging_dir/target-x86_64_musl/lib > -L/home/stijn/Development/LEDE/source/staging_dir/toolchain-x86_64_gcc-8.3.0_musl/usr/lib > -L/home/stijn/Development/LEDE/source/staging_dir/toolchain-x86_64_gcc-8.3.0_musl/lib > -fpic > -specs=/home/stijn/Development/LEDE/source/include/hardened-ld-pie.specs > -znow -zrelro -Wl,--gc-sections -flto -fuse-linker-plugin -Wl,-E -o > pppd main.o magic.o fsm.o lcp.o ipcp.o upap.o chap-new.o md5.o ccp.o > ecp.o auth.o options.o demand.o utils.o sys-linux.o ipxcp.o tty.o eap.o > chap-md5.o session.o md4.o chap_ms.o sha1.o pppcrypt.o pcap_pcc.o > ipv6cp.o eui64.o -lcrypt -ldl > /home/stijn/Development/LEDE/source/staging_dir/target-x86_64_musl/usr/lib/libpcap.a > /home/build/openwrt/staging_dir/toolchain-x86_64_gcc-8.3.0_musl/bin/../lib/gcc/x86_64-openwrt-linux-musl/8.3.0/../../../../x86_64-openwrt-linux-musl/bin/ld: > /home/stijn/Development/LEDE/source/staging_dir/target-x86_64_musl/usr/lib/libpcap.a(bpf_filter.c.o): > relocation R_X86_64_32S against `.rodata' can not be used when making a > PIE object; recompile with -fPIC > /home/build/openwrt/staging_dir/toolchain-x86_64_gcc-8.3.0_musl/bin/../lib/gcc/x86_64-openwrt-linux-musl/8.3.0/../../../../x86_64-openwrt-linux-musl/bin/ld: > final link failed: nonrepresentable section on output > collect2: error: ld returned 1 exit status > > So NACK from me until this is fixed. This one can most likely be fixed by setting PKG_ASLR_PIE_REGULAR:=1 in libpcap as well. That way -fPIC gets passed for the static library build.
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