Buildresult: linus/s390-defconfig/s390x-gcc4.6 built on Jun 14 2018, 17:48

kisskb

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Status:	OK
Date/Time:	Jun 14 2018, 17:48
Duration:	0:02:00.120885
Builder:	ka2
Revision:	Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables (`050e9baa9dc9fbd9ce2b27f0056990fc9e0a08a0)`
Target:	linus/s390-defconfig/s390x-gcc4.6
Branch:	linus
Compiler:	s390x-gcc4.6 (s390x-linux-gcc (GCC) 4.6.3)
Config:	defconfig (download)
Log:	Download original Possible warnings (8) <stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp] <stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp] kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] kernel/cgroup/cgroup-v1.c:1256:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] mm/hugetlb.c:1433:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1835:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1745:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify 050e9baa9dc9fbd9ce2b27f0056990fc9e0a08a0^{commit} 050e9baa9dc9fbd9ce2b27f0056990fc9e0a08a0 already have revision, skipping fetch # git checkout -q -f -B kisskb 050e9baa9dc9fbd9ce2b27f0056990fc9e0a08a0 # git clean -qxdf # < git log -1 # commit 050e9baa9dc9fbd9ce2b27f0056990fc9e0a08a0 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Thu Jun 14 12:21:18 2018 +0900 # # Kbuild: rename CC_STACKPROTECTOR[_STRONG] config variables # # The changes to automatically test for working stack protector compiler # support in the Kconfig files removed the special STACKPROTECTOR_AUTO # option that picked the strongest stack protector that the compiler # supported. # # That was all a nice cleanup - it makes no sense to have the AUTO case # now that the Kconfig phase can just determine the compiler support # directly. # # HOWEVER. # # It also meant that doing "make oldconfig" would now _disable_ the strong # stackprotector if you had AUTO enabled, because in a legacy config file, # the sane stack protector configuration would look like # # CONFIG_HAVE_CC_STACKPROTECTOR=y # # CONFIG_CC_STACKPROTECTOR_NONE is not set # # CONFIG_CC_STACKPROTECTOR_REGULAR is not set # # CONFIG_CC_STACKPROTECTOR_STRONG is not set # CONFIG_CC_STACKPROTECTOR_AUTO=y # # and when you ran this through "make oldconfig" with the Kbuild changes, # it would ask you about the regular CONFIG_CC_STACKPROTECTOR (that had # been renamed from CONFIG_CC_STACKPROTECTOR_REGULAR to just # CONFIG_CC_STACKPROTECTOR), but it would think that the STRONG version # used to be disabled (because it was really enabled by AUTO), and would # disable it in the new config, resulting in: # # CONFIG_HAVE_CC_STACKPROTECTOR=y # CONFIG_CC_HAS_STACKPROTECTOR_NONE=y # CONFIG_CC_STACKPROTECTOR=y # # CONFIG_CC_STACKPROTECTOR_STRONG is not set # CONFIG_CC_HAS_SANE_STACKPROTECTOR=y # # That's dangerously subtle - people could suddenly find themselves with # the weaker stack protector setup without even realizing. # # The solution here is to just rename not just the old RECULAR stack # protector option, but also the strong one. This does that by just # removing the CC_ prefix entirely for the user choices, because it really # is not about the compiler support (the compiler support now instead # automatially impacts _visibility_ of the options to users). # # This results in "make oldconfig" actually asking the user for their # choice, so that we don't have any silent subtle security model changes. # The end result would generally look like this: # # CONFIG_HAVE_CC_STACKPROTECTOR=y # CONFIG_CC_HAS_STACKPROTECTOR_NONE=y # CONFIG_STACKPROTECTOR=y # CONFIG_STACKPROTECTOR_STRONG=y # CONFIG_CC_HAS_SANE_STACKPROTECTOR=y # # where the "CC_" versions really are about internal compiler # infrastructure, not the user selections. # # Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux-gcc --version # < git log --format=%s --max-count=1 050e9baa9dc9fbd9ce2b27f0056990fc9e0a08a0 # < make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux- defconfig # make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/s390x-linux/bin/s390x-linux- /kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter. <stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp] <stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp] /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount': /kisskb/src/kernel/cgroup/cgroup-v1.c:1256:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:340:21: note: 'pdeo' was declared here /kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page': /kisskb/src/mm/hugetlb.c:1433:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter. /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1835:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1745:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] Completed OK # rm -rf /kisskb/build/linus_s390-defconfig_s390x # Build took: 0:02:00.120885

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