Buildresult: linus/xtensa-defconfig/xtensa-gcc8 built on Nov 4 2021, 06:33

kisskb

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Status:	OK
Date/Time:	Nov 4 2021, 06:33
Duration:	0:00:39.283872
Builder:	blade46
Revision:	string: uninline memcpy_and_pad (`5c4e0a21fae877a7ef89be6dcc6263ec672372b8)`
Target:	linus/xtensa-defconfig/xtensa-gcc8
Branch:	linus
Compiler:	xtensa-gcc8 (xtensa-linux-gcc.br_real (Buildroot 2016.11-git-00613-ge98b4dd) 5.4.0 / GNU ld (GNU Binutils) 2.26.1)
Config:	defconfig (download)
Log:	Download original Possible warnings (3) warning: The last gc run reported the following. Please correct the root cause warning: There are too many unreachable loose objects; run 'git prune' to remove them. <stdin>:1559:2: warning: #warning syscall futex_waitv not implemented [-Wcpp] Full Log # git rev-parse -q --verify 5c4e0a21fae877a7ef89be6dcc6263ec672372b8^{commit} # git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master warning: The last gc run reported the following. Please correct the root cause and remove .git/gc.log. Automatic cleanup will not be performed until the file is removed. warning: There are too many unreachable loose objects; run 'git prune' to remove them. # git rev-parse -q --verify 5c4e0a21fae877a7ef89be6dcc6263ec672372b8^{commit} 5c4e0a21fae877a7ef89be6dcc6263ec672372b8 # git checkout -q -f -B kisskb 5c4e0a21fae877a7ef89be6dcc6263ec672372b8 # git clean -qxdf # < git log -1 # commit 5c4e0a21fae877a7ef89be6dcc6263ec672372b8 # Author: Guenter Roeck <linux@roeck-us.net> # Date: Tue Nov 2 07:24:20 2021 -0700 # # string: uninline memcpy_and_pad # # When building m68k:allmodconfig, recent versions of gcc generate the # following error if the length of UTS_RELEASE is less than 8 bytes. # # In function 'memcpy_and_pad', # inlined from 'nvmet_execute_disc_identify' at # drivers/nvme/target/discovery.c:268:2: arch/m68k/include/asm/string.h:72:25: error: # '__builtin_memcpy' reading 8 bytes from a region of size 7 # # Discussions around the problem suggest that this only happens if an # architecture does not provide strlen(), if -ffreestanding is provided as # compiler option, and if CONFIG_FORTIFY_SOURCE=n. All of this is the case # for m68k. The exact reasons are unknown, but seem to be related to the # ability of the compiler to evaluate the return value of strlen() and # the resulting execution flow in memcpy_and_pad(). It would be possible # to work around the problem by using sizeof(UTS_RELEASE) instead of # strlen(UTS_RELEASE), but that would only postpone the problem until the # function is called in a similar way. Uninline memcpy_and_pad() instead # to solve the problem for good. # # Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> # Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> # Acked-by: Andy Shevchenko <andriy.shevchenko@intel.com> # Signed-off-by: Guenter Roeck <linux@roeck-us.net> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-gcc --version # < /opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-ld --version # < git log --format=%s --max-count=1 5c4e0a21fae877a7ef89be6dcc6263ec672372b8 # < make -s -j 32 ARCH=xtensa O=/kisskb/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux- defconfig # < make -s -j 32 ARCH=xtensa O=/kisskb/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux- help # make -s -j 32 ARCH=xtensa O=/kisskb/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux- olddefconfig # make -s -j 32 ARCH=xtensa O=/kisskb/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux- <stdin>:1559:2: warning: #warning syscall futex_waitv not implemented [-Wcpp] Completed OK # rm -rf /kisskb/build/linus_xtensa-defconfig_xtensa # Build took: 0:00:39.283872

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