Date: Sat, 6 Jul 2013 18:40:22 +1000 From: Peter Jeremy <peter@rulingia.com> To: Tim Kientzle <kientzle@FreeBSD.org> Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org, src-committers@FreeBSD.org Subject: Re: svn commit: r252373 - head/usr.bin Message-ID: <20130706084022.GA91077@server.rulingia.com> In-Reply-To: <201306291531.r5TFVOKb016748@svn.freebsd.org> References: <201306291531.r5TFVOKb016748@svn.freebsd.org>
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[-- Attachment #1 --] On 2013-Jun-29 15:31:24 +0000, Tim Kientzle <kientzle@FreeBSD.org> wrote: >Log: > Enable svnlite on armv6. This breaks building world with gcc on Raspberry Pi: gcc -O -pipe -I/tank/src10r/usr.bin/svn/svn/../../../contrib/subversion/subversion/include -I/tank/src10r/usr.bin/svn/svn/../../../contrib/subversion/subversion -I/tank/src10r/usr.bin/svn/svn/.. -I/tank/src10r/usr.bin/svn/svn/../lib/libapr -I/tank/src10r/usr.bin/svn/svn/../../../contrib/apr/include/arch/unix -I/tank/src10r/usr.bin/svn/svn/../../../contrib/apr/include -I/tank/src10r/usr.bin/svn/svn/../lib/libapr_util -I/tank/src10r/usr.bin/svn/svn/../../../contrib/apr-util/include/private -I/tank/src10r/usr.bin/svn/svn/../../../contrib/apr-util/include -std=gnu99 -Wno-pointer-sign -o svnlite add-cmd.o blame-cmd.o cat-cmd.o changelist-cmd.o checkout-cmd.o cl-conflicts.o cleanup-cmd.o commit-cmd.o conflict-callbacks.o copy-cmd.o delete-cmd.o deprecated.o diff-cmd.o export-cmd.o file-merge.o help-cmd.o import-cmd.o info-cmd.o list-cmd.o lock-cmd.o log-cmd.o merge-cmd.o mergeinfo-cmd.o mkdir-cmd.o move-cmd.o notify.o patch-cmd.o propdel-cmd.o propedit-cmd.o propget-cmd.o proplist-cmd.o props.o propset-cmd.o relocate-cmd.o resolve-cmd.o resolved-cmd.o revert-cmd.o status-cmd.o status.o svn.o switch-cmd.o unlock-cmd.o update-cmd.o upgrade-cmd.o util.o -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_client -lsvn_client -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_wc -lsvn_wc -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_ra -lsvn_ra -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_ra_local -lsvn_ra_local -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_ra_svn -lsvn_ra_svn -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_ra_serf -lsvn_ra_serf -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_repos -lsvn_repos -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_fs -lsvn_fs -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_fs_fs -lsvn_fs_fs -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_fs_util -lsvn_fs_util -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_delta -lsvn_delta -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_diff -lsvn_diff -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_subr -lsvn_subr -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libserf -lserf -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libapr_util -lapr-util -lbsdxml -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libapr -lapr -L/tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsqlite3 -lsqlite3 -lz -lcrypt -lmagic -lcrypto -lssl -lpthread /tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_subr/libsvn_subr.a(named_atomic.o): In function `svn_named_atomic__cmpxchg': named_atomic.c:(.text+0xf0): undefined reference to `__sync_val_compare_and_swap_8' /tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_subr/libsvn_subr.a(named_atomic.o): In function `svn_named_atomic__add': named_atomic.c:(.text+0x174): undefined reference to `__sync_add_and_fetch_8' /tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libsvn_subr/libsvn_subr.a(named_atomic.o): In function `svn_named_atomic__write': named_atomic.c:(.text+0x1c0): undefined reference to `__sync_lock_test_and_set_8' /tank/obj/rpi/arm.armv6/tank/src10r/usr.bin/svn/svn/../lib/libapr/libapr.a(builtins.o): In function `apr_atomic_dec32': builtins.c:(.text+0x90): undefined reference to `__sync_sub_and_fetch_4' *** Error code 1 Stop. make: stopped in /tank/src10r/usr.bin/svn/svn I've split the failures into two categories: __sync_add_and_fetch_8 __sync_lock_test_and_set_8 __sync_val_compare_and_swap_8 these should be defined in /usr/src/sys/arm/arm/stdatomic.c (and compiled into libcompiler_rt.a) but that file only defines 1-, 2- and 4-byte variants for userland armv6 (it looks like it fakes 8-byte variants in the kernel by disabling interrupts). I don't know ARM assembler well enough to know if there's any way to do 64-bit atomic operations. I suspect not. __sync_sub_and_fetch_4 There are references to __sync_sub_and_fetch() but I can't any sign of a definition. It looks like __sync_sub_and_fetch_4 is supposed to be a gcc builtin so I'm not sure why it's being emitted without a definition. -- Peter Jeremy [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.20 (FreeBSD) iEYEARECAAYFAlHX1/YACgkQ/opHv/APuIcuwwCcCjDgQlNkFiZegVo5BdIhlFIl n1wAn2I+HLgmSVKWQlIqC7nKKOMhIgpS =TF+/ -----END PGP SIGNATURE-----
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