Buildresult: linus/mips-allmodconfig/mips-gcc8 built on Feb 10, 15:28

kisskb

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

Status:	Failed
Date/Time:	Feb 10, 15:28
Duration:	0:08:53.619138
Builder:	ka4
Revision:	work around gcc bugs with 'asm goto' with outputs (`4356e9f841f7fbb945521cef3577ba394c65f3fc)`
Target:	linus/mips-allmodconfig/mips-gcc8
Branch:	linus
Compiler:	mips-gcc8 (mips-linux-gcc (GCC) 8.5.0 / GNU ld (GNU Binutils) 2.36.1)
Config:	allmodconfig (download)
Log:	Download original Possible errors include/linux/fortify-string.h:528:4: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror] include/linux/fortify-string.h:537:4: error: call to '__read_overflow2_field' declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Werror] cc1: all warnings being treated as errors make[8]: * [scripts/Makefile.build:243: drivers/crypto/intel/qat/qat_common/adf_gen4_hw_data.o] Error 1 make[7]: * [scripts/Makefile.build:481: drivers/crypto/intel/qat/qat_common] Error 2 make[6]: * [scripts/Makefile.build:481: drivers/crypto/intel/qat] Error 2 make[5]: * [scripts/Makefile.build:481: drivers/crypto/intel] Error 2 make[4]: * [scripts/Makefile.build:481: drivers/crypto] Error 2 make[3]: * [scripts/Makefile.build:481: drivers] Error 2 make[2]: * [Makefile:1921: .] Error 2 make[1]: * [Makefile:240: __sub-make] Error 2 make: * [Makefile:240: __sub-make] Error 2 Possible warnings (3) .config:14882:warning: override: reassigning to symbol MIPS_CPS_NS16550_SHIFT include/linux/fortify-string.h:528:4: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror] include/linux/fortify-string.h:537:4: error: call to '__read_overflow2_field' declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Werror] Full Log # git rev-parse -q --verify 4356e9f841f7fbb945521cef3577ba394c65f3fc^{commit} 4356e9f841f7fbb945521cef3577ba394c65f3fc already have revision, skipping fetch # git checkout -q -f -B kisskb 4356e9f841f7fbb945521cef3577ba394c65f3fc # git clean -qxdf # < git log -1 # commit 4356e9f841f7fbb945521cef3577ba394c65f3fc # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Fri Feb 9 12:39:31 2024 -0800 # # work around gcc bugs with 'asm goto' with outputs # # We've had issues with gcc and 'asm goto' before, and we created a # 'asm_volatile_goto()' macro for that in the past: see commits # 3f0116c3238a ("compiler/gcc4: Add quirk for 'asm goto' miscompilation # bug") and a9f180345f53 ("compiler/gcc4: Make quirk for # asm_volatile_goto() unconditional"). # # Then, much later, we ended up removing the workaround in commit # 43c249ea0b1e ("compiler-gcc.h: remove ancient workaround for gcc PR # 58670") because we no longer supported building the kernel with the # affected gcc versions, but we left the macro uses around. # # Now, Sean Christopherson reports a new version of a very similar # problem, which is fixed by re-applying that ancient workaround. But the # problem in question is limited to only the 'asm goto with outputs' # cases, so instead of re-introducing the old workaround as-is, let's # rename and limit the workaround to just that much less common case. # # It looks like there are at least two separate issues that all hit in # this area: # # (a) some versions of gcc don't mark the asm goto as 'volatile' when it # has outputs: # # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98619 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110420 # # which is easy to work around by just adding the 'volatile' by hand. # # (b) Internal compiler errors: # # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110422 # # which are worked around by adding the extra empty 'asm' as a # barrier, as in the original workaround. # # but the problem Sean sees may be a third thing since it involves bad # code generation (not an ICE) even with the manually added 'volatile'. # # but the same old workaround works for this case, even if this feels a # bit like voodoo programming and may only be hiding the issue. # # Reported-and-tested-by: Sean Christopherson <seanjc@google.com> # Link: https://lore.kernel.org/all/20240208220604.140859-1-seanjc@google.com/ # Cc: Nick Desaulniers <ndesaulniers@google.com> # Cc: Uros Bizjak <ubizjak@gmail.com> # Cc: Jakub Jelinek <jakub@redhat.com> # Cc: Andrew Pinski <quic_apinski@quicinc.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux-ld --version # < git log --format=%s --max-count=1 4356e9f841f7fbb945521cef3577ba394c65f3fc # make -s -j 40 ARCH=mips O=/kisskb/build/linus_allmodconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- allmodconfig # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_SAMPLES=n # Added to kconfig CONFIG_MIPS_CPS_NS16550_BASE=0x1b0003f8 # Added to kconfig CONFIG_MIPS_CPS_NS16550_SHIFT=0 # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig # < make -s -j 40 ARCH=mips O=/kisskb/build/linus_allmodconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- help # make -s -j 40 ARCH=mips O=/kisskb/build/linus_allmodconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- olddefconfig .config:14882:warning: override: reassigning to symbol MIPS_CPS_NS16550_SHIFT # make -s -j 40 ARCH=mips O=/kisskb/build/linus_allmodconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- In file included from /kisskb/src/include/linux/string.h:292, from /kisskb/src/include/linux/bitmap.h:12, from /kisskb/src/include/linux/cpumask.h:12, from /kisskb/src/include/linux/smp.h:13, from /kisskb/src/arch/mips/include/asm/cpu-type.h:12, from /kisskb/src/arch/mips/include/asm/timex.h:19, from /kisskb/src/include/linux/timex.h:67, from /kisskb/src/include/linux/time32.h:13, from /kisskb/src/include/linux/time.h:60, from /kisskb/src/include/linux/jiffies.h:10, from /kisskb/src/include/linux/ktime.h:25, from /kisskb/src/include/linux/iopoll.h:11, from /kisskb/src/drivers/crypto/intel/qat/qat_common/adf_gen4_hw_data.c:3: In function 'fortify_memcpy_chk', inlined from 'adf_gen4_init_thd2arb_map' at /kisskb/src/drivers/crypto/intel/qat/qat_common/adf_gen4_hw_data.c:401:3: /kisskb/src/include/linux/fortify-string.h:528:4: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror] __write_overflow_field(p_size_field, size); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/fortify-string.h:537:4: error: call to '__read_overflow2_field' declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Werror] __read_overflow2_field(q_size_field, size); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors make[8]: * [/kisskb/src/scripts/Makefile.build:243: drivers/crypto/intel/qat/qat_common/adf_gen4_hw_data.o] Error 1 make[7]: * [/kisskb/src/scripts/Makefile.build:481: drivers/crypto/intel/qat/qat_common] Error 2 make[7]: * Waiting for unfinished jobs.... make[6]: * [/kisskb/src/scripts/Makefile.build:481: drivers/crypto/intel/qat] Error 2 make[5]: * [/kisskb/src/scripts/Makefile.build:481: drivers/crypto/intel] Error 2 make[4]: * [/kisskb/src/scripts/Makefile.build:481: drivers/crypto] Error 2 make[4]: * Waiting for unfinished jobs.... make[3]: * [/kisskb/src/scripts/Makefile.build:481: drivers] Error 2 make[2]: * [/kisskb/src/Makefile:1921: .] Error 2 make[1]: * [/kisskb/src/Makefile:240: __sub-make] Error 2 make: * [Makefile:240: __sub-make] Error 2 Command 'make -s -j 40 ARCH=mips O=/kisskb/build/linus_allmodconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- ' returned non-zero exit status 2. # rm -rf /kisskb/build/linus_allmodconfig_mips-gcc8 # Build took: 0:08:53.619138

© Michael Ellerman 2006-2018.