Buildresult: kbuild/x86_64-defconfig/x86_64-gcc11 built on Oct 17 2022, 04:27

kisskb

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

Status:	OK
Date/Time:	Oct 17 2022, 04:27
Duration:	0:01:45.814796
Builder:	ka4
Revision:	lib/Kconfig.debug: Add check for non-constant .{s,u}leb128 support to DWARF5 (`0a6de78cff600cb991f2a1b7ed376935871796a0)`
Target:	kbuild/x86_64-defconfig/x86_64-gcc11
Branch:	kbuild
Compiler:	x86_64-gcc11 (x86_64-linux-gcc (GCC) 11.1.0 / GNU ld (GNU Binutils) 2.36.1)
Config:	defconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify 0a6de78cff600cb991f2a1b7ed376935871796a0^{commit} 0a6de78cff600cb991f2a1b7ed376935871796a0 already have revision, skipping fetch # git checkout -q -f -B kisskb 0a6de78cff600cb991f2a1b7ed376935871796a0 # git clean -qxdf # < git log -1 # commit 0a6de78cff600cb991f2a1b7ed376935871796a0 # Author: Nathan Chancellor <nathan@kernel.org> # Date: Fri Oct 14 13:42:11 2022 -0700 # # lib/Kconfig.debug: Add check for non-constant .{s,u}leb128 support to DWARF5 # # When building with a RISC-V kernel with DWARF5 debug info using clang # and the GNU assembler, several instances of the following error appear: # # /tmp/vgettimeofday-48aa35.s:2963: Error: non-constant .uleb128 is not supported # # Dumping the .s file reveals these .uleb128 directives come from # .debug_loc and .debug_ranges: # # .Ldebug_loc0: # .byte 4 # DW_LLE_offset_pair # .uleb128 .Lfunc_begin0-.Lfunc_begin0 # starting offset # .uleb128 .Ltmp1-.Lfunc_begin0 # ending offset # .byte 1 # Loc expr size # .byte 90 # DW_OP_reg10 # .byte 0 # DW_LLE_end_of_list # # .Ldebug_ranges0: # .byte 4 # DW_RLE_offset_pair # .uleb128 .Ltmp6-.Lfunc_begin0 # starting offset # .uleb128 .Ltmp27-.Lfunc_begin0 # ending offset # .byte 4 # DW_RLE_offset_pair # .uleb128 .Ltmp28-.Lfunc_begin0 # starting offset # .uleb128 .Ltmp30-.Lfunc_begin0 # ending offset # .byte 0 # DW_RLE_end_of_list # # There is an outstanding binutils issue to support a non-constant operand # to .sleb128 and .uleb128 in GAS for RISC-V but there does not appear to # be any movement on it, due to concerns over how it would work with # linker relaxation. # # To avoid these build errors, prevent DWARF5 from being selected when # using clang and an assembler that does not have support for these symbol # deltas, which can be easily checked in Kconfig with as-instr plus the # small test program from the dwz test suite from the binutils issue. # # Link: https://sourceware.org/bugzilla/show_bug.cgi?id=27215 # Link: https://github.com/ClangBuiltLinux/linux/issues/1719 # Signed-off-by: Nathan Chancellor <nathan@kernel.org> # Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> # Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 0a6de78cff600cb991f2a1b7ed376935871796a0 # < make -s -j 120 ARCH=x86 O=/kisskb/build/kbuild_x86_64_defconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- x86_64_defconfig # < make -s -j 120 ARCH=x86 O=/kisskb/build/kbuild_x86_64_defconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- help # make -s -j 120 ARCH=x86 O=/kisskb/build/kbuild_x86_64_defconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- olddefconfig # make -s -j 120 ARCH=x86 O=/kisskb/build/kbuild_x86_64_defconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux- Completed OK # rm -rf /kisskb/build/kbuild_x86_64_defconfig_x86_64-gcc11 # Build took: 0:01:45.814796

© Michael Ellerman 2006-2018.