On 2017-Apr-30, at 3:47 PM, tech-lists <tech-lists at zyxst.net> wrote:
> hi toolchain@, > > I'm trying to buildworld on a raspberrypi3 HardenedBSD-12 context. > > FreeBSD clang version 4.0.0 (tags/RELEASE_400/final 297347) (based on > LLVM 4.0.0) > Target: aarch64-unknown-freebsd12.0 > Thread model: posix > InstalledDir: /usr/bin > > LLVM (http://llvm.org/): > LLVM version 4.0.0 > Optimized build. > Default target: aarch64-unknown-freebsd12.0 > Host CPU: (unknown) > > It's failing in sys/boot/efi/boot1 with this sort of error: > > /ldscript.arm64 -Wl,-Bsymbolic -shared -nostdlib -Wl,-z,relro -Wl,-z,now > -o boot1.sym.full boot1.o self_reloc.o start.o ufs_module.o -lstand > /usr/bin/ld: error: /hd0/src/lib/libstand/printf.c:(.rodata+0x0): can't > create dynamic relocation R_AARCH64_ABS64 against local symbol in > readonly segment defined in /usr/lib/libstand.a(printf.o) > /usr/bin/ld: error: /hd0/src/lib/libstand/printf.c:(.rodata+0x8): can't > create dynamic relocation R_AARCH64_ABS64 against local symbol in > readonly segment defined in /usr/lib/libstand.a(printf.o) > > I've refreshed to very latest sources but get the same error. Full > output is here: > > http://www.zyxst.net/~bofh/rpi3/2017-04-29.buildworldfail.hbsd12-aarch64.txt Your toolchain configuration is using: -Wl,-z,relro (Its use is shown in 2017-04-29.buildworldfail.hbsd12-aarch64.txt .) See later below for more notes about that. But I'll also note that 2017-04-29.buildworldfail.hbsd12-aarch64.txt shows: cc: error: unable to execute command: Segmentation fault (core dumped) cc: error: linker command failed due to signal (use -v to see invocation) *** Error code 254 not just what you report above. > I note that a very similar error involving a different efi directory was > reported back in January: > > http://freebsd.1045724.x6.nabble.com/clang-lld-4-0-0-arm64-link-failure-in-sys-boot-efi-loader-td6161866.html This old issue was caused (at least in part) by use of a toolchain configured to use: -Wl,-z,relro . relro puts more stuff in read-only areas, such as .rodata . Being in such areas limits what can be done and overall the tool chain may not be set up fully for respecting/handling that. > ...but no resolution/fix. Is there anything I can do? Use of -Wl,-z,relro is experimental at this point as I understand, in part because of such potential issues. Avoiding -Wl,-z,relro likely is necessary but may not be sufficient for your builds to complete. === Mark Millard markmi at dsl-only.net _______________________________________________ freebsd-toolchain@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-toolchain To unsubscribe, send any mail to "freebsd-toolchain-unsubscr...@freebsd.org"
