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4161032918
Integrating the following commit(s) to linux-yocto/6.12:
1/1 [
Author: Ross Burton
Email: ross.burton@arm.com
Subject: libbpf: silence maybe-uninitialized warning from clang
Date: Wed, 4 Jun 2025 21:22:23 +0100
perf is build with -Werror, but clang 20.1.6 (incorrectly) finds that
mod_len may be used uninitialized:
libbpf.c: In function 'find_kernel_btf_id.constprop':
libbpf.c:10009:33: error: 'mod_len' may be used uninitialized [-Werror=maybe-uninitialized]
10009 | if (mod_name && strncmp(mod->name, mod_name, mod_len) != 0)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
libbpf.c:9979:21: note: 'mod_len' was declared here
9979 | int ret, i, mod_len;
| ^~~~~~~
Inspecting the code it can be seen that mod_len is set if mod_name is
set, and the strncmp() is only called if mod_name is set, so this is a
false positive (interestingly, clang doesn't spot the same issue above).
Silence the false positive by explicitly initializing mod_len to 0.
Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
]
(From OE-Core rev: 43f6b7795170f0e571265f22bcef51554684206f)
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
80 lines
4.3 KiB
BlitzBasic
80 lines
4.3 KiB
BlitzBasic
KBRANCH ?= "v6.12/standard/base"
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require recipes-kernel/linux/linux-yocto.inc
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# CVE exclusions
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include recipes-kernel/linux/cve-exclusion.inc
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include recipes-kernel/linux/cve-exclusion_6.12.inc
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# board specific branches
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KBRANCH:qemuarm ?= "v6.12/standard/arm-versatile-926ejs"
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KBRANCH:qemuarm64 ?= "v6.12/standard/base"
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KBRANCH:qemumips ?= "v6.12/standard/mti-malta32"
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KBRANCH:qemuppc ?= "v6.12/standard/qemuppc"
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KBRANCH:qemuriscv64 ?= "v6.12/standard/base"
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KBRANCH:qemuriscv32 ?= "v6.12/standard/base"
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KBRANCH:qemux86 ?= "v6.12/standard/base"
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KBRANCH:qemux86.104 ?= "v6.12/standard/base"
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KBRANCH:qemuloongarch64 ?= "v6.12/standard/base"
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KBRANCH:qemumips64 ?= "v6.12/standard/mti-malta64"
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SRCREV_machine:qemuarm ?= "37a1fd13ca538e7785daf01434495a614bc55ead"
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SRCREV_machine:qemuarm64 ?= "298aefdf4112e7c0a84522e4acf2c722e433c8a0"
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SRCREV_machine:qemuloongarch64 ?= "298aefdf4112e7c0a84522e4acf2c722e433c8a0"
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SRCREV_machine:qemumips ?= "2bcf58ea5aa19d54c436e63c59ab09b307e9ee8e"
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SRCREV_machine:qemuppc ?= "298aefdf4112e7c0a84522e4acf2c722e433c8a0"
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SRCREV_machine:qemuriscv64 ?= "298aefdf4112e7c0a84522e4acf2c722e433c8a0"
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SRCREV_machine:qemuriscv32 ?= "298aefdf4112e7c0a84522e4acf2c722e433c8a0"
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SRCREV_machine:qemux86 ?= "298aefdf4112e7c0a84522e4acf2c722e433c8a0"
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SRCREV_machine:qemux86-64 ?= "298aefdf4112e7c0a84522e4acf2c722e433c8a0"
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SRCREV_machine:qemumips64 ?= "6470f58a8f04951f202cf85afb4421d2e7ec9995"
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SRCREV_machine ?= "298aefdf4112e7c0a84522e4acf2c722e433c8a0"
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SRCREV_meta ?= "60b8562e9989f268ad5d241989f56b71cfa1f648"
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# set your preferred provider of linux-yocto to 'linux-yocto-upstream', and you'll
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# get the <version>/base branch, which is pure upstream -stable, and the same
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# meta SRCREV as the linux-yocto-standard builds. Select your version using the
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# normal PREFERRED_VERSION settings.
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BBCLASSEXTEND = "devupstream:target"
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SRCREV_machine:class-devupstream ?= "df3f6d10f353de274cc7c87f52dba5d26f185393"
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PN:class-devupstream = "linux-yocto-upstream"
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KBRANCH:class-devupstream = "v6.12/base"
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SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;name=machine;branch=${KBRANCH};protocol=https \
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git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-6.12;destsuffix=${KMETA};protocol=https"
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LIC_FILES_CHKSUM = "file://COPYING;md5=6bc538ed5bd9a7fc9398086aedcd7e46"
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LINUX_VERSION ?= "6.12.31"
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PV = "${LINUX_VERSION}+git"
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KMETA = "kernel-meta"
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KCONF_BSP_AUDIT_LEVEL = "1"
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KERNEL_DEVICETREE:qemuarmv5 = "arm/versatile-pb.dtb"
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COMPATIBLE_MACHINE = "^(qemuarm|qemuarmv5|qemuarm64|qemux86|qemuppc|qemuppc64|qemumips|qemumips64|qemux86-64|qemuriscv64|qemuriscv32|qemuloongarch64)$"
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# Functionality flags
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KERNEL_EXTRA_FEATURES ?= "features/netfilter/netfilter.scc"
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KERNEL_FEATURES:append = " ${KERNEL_EXTRA_FEATURES}"
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KERNEL_FEATURES:append:qemuall = " cfg/virtio.scc features/drm-bochs/drm-bochs.scc cfg/net/mdio.scc"
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KERNEL_FEATURES:append:qemux86 = " cfg/sound.scc cfg/paravirt_kvm.scc"
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KERNEL_FEATURES:append:qemux86-64 = " cfg/sound.scc cfg/paravirt_kvm.scc"
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KERNEL_FEATURES:append = " ${@bb.utils.contains("TUNE_FEATURES", "mx32", " cfg/x32.scc", "", d)}"
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KERNEL_FEATURES:append = " ${@bb.utils.contains("DISTRO_FEATURES", "ptest", " features/scsi/scsi-debug.scc features/nf_tables/nft_test.scc", "", d)}"
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KERNEL_FEATURES:append = " ${@bb.utils.contains("DISTRO_FEATURES", "ptest", " features/gpio/mockup.scc features/gpio/sim.scc", "", d)}"
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KERNEL_FEATURES:append = " ${@bb.utils.contains("KERNEL_DEBUG", "True", " features/reproducibility/reproducibility.scc features/debug/debug-btf.scc", "", d)}"
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# libteam ptests from meta-oe needs it
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KERNEL_FEATURES:append = " ${@bb.utils.contains("DISTRO_FEATURES", "ptest", " features/net/team/team.scc", "", d)}"
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# openl2tp tests from meta-networking needs it
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KERNEL_FEATURES:append = " ${@bb.utils.contains("DISTRO_FEATURES", "ptest", " cgl/cfg/net/l2tp.scc", "", d)}"
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KERNEL_FEATURES:append:powerpc = " arch/powerpc/powerpc-debug.scc"
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KERNEL_FEATURES:append:powerpc64 = " arch/powerpc/powerpc-debug.scc"
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KERNEL_FEATURES:append:powerpc64le = " arch/powerpc/powerpc-debug.scc"
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# Do not add debug info for riscv32, it fails during depmod
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# ERROR: modpost: __ex_table+0x17a4 references non-executable section '.debug_loclists'
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# Check again during next major version upgrade
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KERNEL_FEATURES:remove:riscv32 = "features/debug/debug-kernel.scc"
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INSANE_SKIP:kernel-vmlinux:qemuppc64 = "textrel"
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