Buildresult: linus/m5272c3_defconfig/m68k-gcc8 built on Nov 4 2021, 06:33

kisskb

Revisions | Branches | Compilers | Configs | Build Results | Build Failures |

Status:	OK
Date/Time:	Nov 4 2021, 06:33
Duration:	0:00:32.346849
Builder:	ka2
Revision:	string: uninline memcpy_and_pad (`5c4e0a21fae877a7ef89be6dcc6263ec672372b8)`
Target:	linus/m5272c3_defconfig/m68k-gcc8
Branch:	linus
Compiler:	m68k-gcc8 (m68k-linux-gcc (GCC) 8.1.0 / GNU ld (GNU Binutils) 2.30)
Config:	m5272c3_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/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-ld --version # < git log --format=%s --max-count=1 5c4e0a21fae877a7ef89be6dcc6263ec672372b8 # < make -s -j 48 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux- m5272c3_defconfig # < make -s -j 48 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux- help # make -s -j 48 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux- olddefconfig # make -s -j 48 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux- <stdin>:1559:2: warning: #warning syscall futex_waitv not implemented [-Wcpp] Completed OK # rm -rf /kisskb/build/linus_m5272c3_defconfig_m68k-gcc8 # Build took: 0:00:32.346849

© Michael Ellerman 2006-2018.