Buildresult: linus/m5272c3_defconfig/m68k-gcc11 built on Sep 15 2021, 00:23

kisskb

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Status:	OK
Date/Time:	Sep 15 2021, 00:23
Duration:	0:00:41.879523
Builder:	blade4b
Revision:	tools: compiler-gcc.h: Guard error attribute use with __has_attribute (`d0ee23f9d78be5531c4b055ea424ed0b489dfe9b)`
Target:	linus/m5272c3_defconfig/m68k-gcc11
Branch:	linus
Compiler:	m68k-gcc11 (m68k-linux-gcc (GCC) 11.1.0 / GNU ld (GNU Binutils) 2.36.1)
Config:	m5272c3_defconfig (download)
Log:	Download original Possible warnings (1) arch/m68k/include/asm/string.h:72:25: warning: '__builtin_memcpy' reading 6 bytes from a region of size 0 [-Wstringop-overread] Full Log # git rev-parse -q --verify d0ee23f9d78be5531c4b055ea424ed0b489dfe9b^{commit} d0ee23f9d78be5531c4b055ea424ed0b489dfe9b already have revision, skipping fetch # git checkout -q -f -B kisskb d0ee23f9d78be5531c4b055ea424ed0b489dfe9b # git clean -qxdf # < git log -1 # commit d0ee23f9d78be5531c4b055ea424ed0b489dfe9b # Author: Nathan Chancellor <nathan@kernel.org> # Date: Mon Sep 13 15:09:00 2021 -0700 # # tools: compiler-gcc.h: Guard error attribute use with __has_attribute # # When building objtool with HOSTCC=clang, there are several errors along # the lines of # # orc_dump.c:201:28: error: unknown attribute 'error' ignored [-Werror,-Wunknown-attributes] # # This occurs after commit 4e59869aa655 ("compiler-gcc.h: drop checks for # older GCC versions"), which removed the GCC_VERSION gating. The removed # version check just so happened to prevent __compiletime_error() from # being defined with clang because it pretends to be GCC 4.2.1 for # compatibility but the error attribute was not added to clang until # 14.0.0. # # Commit 815f0ddb346c ("include/linux/compiler.h: make compiler-.h # mutually exclusive") and commit a3f8a30f3f00 ("Compiler Attributes: use # feature checks instead of version checks") refactored the handling of # attributes in the main kernel to avoid situations like this but that # refactoring has never been done for the tools directory. # # Refactoring is a rather large undertaking and this has never been an # issue before so instead, just guard the definition of # __compiletime_error() with __has_attribute() so that there are no more # errors. # # Fixes: 4e59869aa655 ("compiler-gcc.h: drop checks for older GCC versions") # Signed-off-by: Nathan Chancellor <nathan@kernel.org> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/m68k-linux/bin/m68k-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/m68k-linux/bin/m68k-linux-ld --version # < git log --format=%s --max-count=1 d0ee23f9d78be5531c4b055ea424ed0b489dfe9b # < make -s -j 24 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/m68k-linux/bin/m68k-linux- m5272c3_defconfig # < make -s -j 24 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/m68k-linux/bin/m68k-linux- help # make -s -j 24 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/m68k-linux/bin/m68k-linux- olddefconfig # make -s -j 24 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/m68k-linux/bin/m68k-linux- In file included from /kisskb/src/include/linux/string.h:20, from /kisskb/src/include/linux/bitmap.h:10, from /kisskb/src/include/linux/cpumask.h:12, from /kisskb/src/include/linux/mm_types_task.h:14, from /kisskb/src/include/linux/mm_types.h:5, from /kisskb/src/include/linux/buildid.h:5, from /kisskb/src/include/linux/module.h:14, from /kisskb/src/drivers/net/ethernet/freescale/fec_main.c:25: In function 'fec_get_mac', inlined from 'fec_enet_init' at /kisskb/src/drivers/net/ethernet/freescale/fec_main.c:3510:8, inlined from 'fec_probe' at /kisskb/src/drivers/net/ethernet/freescale/fec_main.c:3932:8: /kisskb/src/arch/m68k/include/asm/string.h:72:25: warning: '__builtin_memcpy' reading 6 bytes from a region of size 0 [-Wstringop-overread] 72 \| #define memcpy(d, s, n) __builtin_memcpy(d, s, n) \| ^~~~~~~~~~~~~~~~~~~~~~~~~ /kisskb/src/drivers/net/ethernet/freescale/fec_main.c:1771:9: note: in expansion of macro 'memcpy' 1771 \| memcpy(ndev->dev_addr, iap, ETH_ALEN); \| ^~~~~~ Completed OK # rm -rf /kisskb/build/linus_m5272c3_defconfig_m68k-gcc11 # Build took: 0:00:41.879523

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