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authorDaniel Borkmann <dborkman@redhat.com>2013-08-05 11:00:59 +0200
committerDaniel Borkmann <dborkman@redhat.com>2013-08-05 11:05:07 +0200
commit4d178e2c0ce19851642045f1661664a9d0f5336f (patch)
tree1c265cd7db5e684fda86fd0f5b96eaebfff0d5c8 /Cmds
parent98c15cbb658f226d52108ea2cb5b3bc27bc6a977 (diff)
build: prevent redefinition of _FORTIFY_SOURCE in gentoo
Add a -U_FORTIFY_SOURCE in HARDENING=1 [1] to prevent [2], e.g. as in: x86_64-pc-linux-gnu-gcc -march=native -O2 -pipe -std=gnu99 -pipe -fPIE -pie -Wl,-z,relro,-z,now -fstack-protector-all -Wstack-protector --param=ssp-buffer-size=4 -ftrapv -D_FORTIFY_SOURCE=2 -fexceptions -fomit-frame-pointer -fno-strict-aliasing -fasynchronous-unwind-tables -fno-delete-null-pointer-checks -D_REENTRANT -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -DVERSION_STRING=\""0.5.8-rc2"""\" -DVERSION_LONG=\""0.5.8-rc2"" (Ziggomatic)"\" -DPREFIX_STRING=\"\" -Wall -I. -I/usr/include/libnl3 -I/usr/include/libnl3 -DHAVE_DISSECTOR_PROTOS -DNEED_TCPDUMP_LIKE_FILTER -I/usr/include/libnl3 -I/usr/include/libnl3 -DHAVE_DISSECTOR_PROTOS -DNEED_TCPDUMP_LIKE_FILTER -o netsniff-ng/proto_igmp.o -c proto_igmp.c :0:0: warning: "_FORTIFY_SOURCE" redefined [enabled by default] proto_igmp.c:1:0: note: this is the location of the previous definition [1] http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/net-analyzer/netsniff-ng/files/netsniff-ng-0.5.8-fortify_source.patch?revision=1.1&view=markup [2] http://b-4.xmw.de/var/log/portage/build/net-analyzer/netsniff-ng-0.5.8_rc2:20130805-070734.log Reported-by: Michael Weber <michael@xmw.de> Suggested-by: Michael Weber <michael@xmw.de> Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Diffstat (limited to 'Cmds')
0 files changed, 0 insertions, 0 deletions
xd0/0x270 SyS_write+0x6c/0x110 system_call+0x38/0xe0 Examination of the queue showed a single reference (no PERCPU_COUNT_BIAS, and __PERCPU_REF_DEAD, __PERCPU_REF_ATOMIC set) and no requests. However, conditions at the time of the race are count of PERCPU_COUNT_BIAS + 0 and __PERCPU_REF_DEAD and __PERCPU_REF_ATOMIC set. The fix is to make the tryget routines use an actual boolean internally instead of the atomic long result truncated to a int. Fixes: e625305b3907 percpu-refcount: make percpu_ref based on longs instead of ints Link: https://bugzilla.kernel.org/show_bug.cgi?id=190751 Signed-off-by: Douglas Miller <dougmill@linux.vnet.ibm.com> Reviewed-by: Jens Axboe <axboe@fb.com> Signed-off-by: Tejun Heo <tj@kernel.org> Fixes: e625305b3907 ("percpu-refcount: make percpu_ref based on longs instead of ints") Cc: stable@vger.kernel.org # v3.18+
Diffstat (limited to 'include/xen/xenbus_dev.h')