Buildresult: kbuild/x86_64-allmodconfig/x86_64-gcc8 built on Jul 17, 18:32

kisskb

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Status:	OK
Date/Time:	Jul 17, 18:32
Duration:	0:16:33.837007
Builder:	ka4
Revision:	kconfig: recursive checks drop file/lineno (`0afaf52eff136daf4edc2aac3dc9793fa247ed0c)`
Target:	kbuild/x86_64-allmodconfig/x86_64-gcc8
Branch:	kbuild
Compiler:	x86_64-gcc8 (x86_64-linux-gcc (GCC) 8.5.0 / GNU ld (GNU Binutils) 2.36.1)
Config:	allmodconfig (download)
Log:	Download original Possible warnings (1) WARNING: modpost: drivers/virt/coco/sev-guest/sev-guest: section mismatch in reference: sev_guest_driver+0x10 (section: .data) -> sev_guest_remove (section: .exit.text) Full Log # git rev-parse -q --verify 0afaf52eff136daf4edc2aac3dc9793fa247ed0c^{commit} 0afaf52eff136daf4edc2aac3dc9793fa247ed0c already have revision, skipping fetch # git checkout -q -f -B kisskb 0afaf52eff136daf4edc2aac3dc9793fa247ed0c # git clean -qxdf # < git log -1 # commit 0afaf52eff136daf4edc2aac3dc9793fa247ed0c # Author: HONG Yifan <elsk@google.com> # Date: Wed Jul 17 01:50:41 2024 +0000 # # kconfig: recursive checks drop file/lineno # # This prevents segfault when getting filename and lineno in recursive # checks. # # If the following snippet is found in Kconfig: # # [Test code 1] # # config FOO # bool # depends on BAR # select BAR # # ... without BAR defined; then there is a segfault. # # Kconfig:34:error: recursive dependency detected! # Kconfig:34: symbol FOO depends on BAR # make[4]: * [scripts/kconfig/Makefile:85: allnoconfig] Segmentation fault # # This is because of the following. BAR is a fake entry created by # sym_lookup() with prop being NULL. In the recursive check, there is a # NULL check for prop to fall back to stack->sym->prop if stack->prop is # NULL. However, in this case, stack->sym points to the fake BAR entry # created by sym_lookup(), so prop is still NULL. prop was then referenced # without additional NULL checks, causing segfault. # # As the previous email thread suggests, the file and lineno for select is # also wrong: # # [Test code 2] # # config FOO # bool # # config BAR # bool # # config FOO # bool "FOO" # depends on BAR # select BAR # # $ make defconfig # * Default configuration is based on 'x86_64_defconfig' # Kconfig:1:error: recursive dependency detected! # Kconfig:1: symbol FOO depends on BAR # Kconfig:4: symbol BAR is selected by FOO # [...] # # Kconfig:4 should be Kconfig:10. # # This patch deletes the wrong and segfault-prone filename/lineno # inference completely. With this patch, Test code 1 yields: # # error: recursive dependency detected! # symbol FOO depends on BAR # symbol BAR is selected by FOO # # Signed-off-by: HONG Yifan <elsk@google.com> # Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 0afaf52eff136daf4edc2aac3dc9793fa247ed0c # make -s -j 40 ARCH=x86_64 O=/kisskb/build/kbuild_allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-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_GCC_PLUGINS=n # Added to kconfig # < make -s -j 40 ARCH=x86_64 O=/kisskb/build/kbuild_allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- help # make -s -j 40 ARCH=x86_64 O=/kisskb/build/kbuild_allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- olddefconfig # make -s -j 40 ARCH=x86_64 O=/kisskb/build/kbuild_allmodconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- WARNING: modpost: drivers/virt/coco/sev-guest/sev-guest: section mismatch in reference: sev_guest_driver+0x10 (section: .data) -> sev_guest_remove (section: .exit.text) Completed OK # rm -rf /kisskb/build/kbuild_allmodconfig_x86_64-gcc8 # Build took: 0:16:33.837007

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