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CI: add patches to fix perf with clang
Apply two in-flight patches to fix the build of perf with clang. Signed-off-by: Ross Burton <ross.burton@arm.com>
This commit is contained in:
Ross Burton
132
0001-linux-yocto-fix-perf-with-clang.patch
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132
0001-linux-yocto-fix-perf-with-clang.patch
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@@ -0,0 +1,132 @@
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From fc2e155f4127935d11a6fc2de2af934f379b5416 Mon Sep 17 00:00:00 2001
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From: Ross Burton <ross.burton@arm.com>
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Date: Mon, 19 Dec 2022 12:25:06 +0000
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Subject: [PATCH] linux-yocto: fix perf with clang
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Signed-off-by: Ross Burton <ross.burton@arm.com>
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---
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...hon-Account-for-multiple-words-in-CC.patch | 98 +++++++++++++++++++
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meta/recipes-kernel/linux/linux-yocto_5.15.bb | 2 +
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2 files changed, 100 insertions(+)
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create mode 100644 meta/recipes-kernel/linux/files/0001-perf-python-Account-for-multiple-words-in-CC.patch
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diff --git a/meta/recipes-kernel/linux/files/0001-perf-python-Account-for-multiple-words-in-CC.patch b/meta/recipes-kernel/linux/files/0001-perf-python-Account-for-multiple-words-in-CC.patch
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new file mode 100644
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index 00000000000..e9f5ab9d836
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--- /dev/null
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+++ b/meta/recipes-kernel/linux/files/0001-perf-python-Account-for-multiple-words-in-CC.patch
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@@ -0,0 +1,98 @@
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+https://lore.kernel.org/linux-perf-users/Y5d4k7fDxfRP7hcN@kernel.org/T/
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+https://lore.kernel.org/bpf/20221205025039.149139-1-raj.khem@gmail.com/T/
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+
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+Upstream-Status: Submitted
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+Signed-off-by: Ross Burton <ross.burton@arm.com>
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+
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+From ec36ad2d4842fa324d532fe49ff2aa67f7e3e939 Mon Sep 17 00:00:00 2001
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+From: Khem Raj <raj.khem@gmail.com>
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+Date: Sun, 4 Dec 2022 18:50:39 -0800
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+Subject: [PATCH 1/2] libbpf: Fix build warning on ref_ctr_off
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+
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+Clang warns on 32-bit ARM on this comparision
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+
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+libbpf.c:10497:18: error: result of comparison of constant 4294967296 with expression of type 'size_t' (aka 'unsigned int') is always false [-Werror,-Wtautological-constant-out-of-range-compare]
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+ if (ref_ctr_off >= (1ULL << PERF_UPROBE_REF_CTR_OFFSET_BITS))
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+ ~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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+
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+Check for platform long int to be larger than 32-bits before enabling
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+this check, it false on 32bit anyways.
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+
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+Cc: Alexei Starovoitov <ast@kernel.org>
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+Cc: Daniel Borkmann <daniel@iogearbox.net>
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+Cc: Song Liu <song@kernel.org>
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+Cc: Yonghong Song <yhs@fb.com>
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+Cc: Jiri Olsa <jolsa@kernel.org>
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+Cc: Paul Walmsley <paul.walmsley@sifive.com>
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+Cc: Palmer Dabbelt <palmer@dabbelt.com>
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+Cc: Nathan Chancellor <nathan@kernel.org>
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+Cc: Nick Desaulniers <ndesaulniers@google.com>
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+
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+Signed-off-by: Khem Raj <raj.khem@gmail.com>
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+---
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+ tools/lib/bpf/libbpf.c | 2 +-
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+ 1 file changed, 1 insertion(+), 1 deletion(-)
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+
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+diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
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+index 050622649797..596d9a335652 100644
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+--- a/tools/lib/bpf/libbpf.c
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++++ b/tools/lib/bpf/libbpf.c
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+@@ -9185,7 +9185,7 @@ static int perf_event_open_probe(bool uprobe, bool retprobe, const char *name,
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+ char errmsg[STRERR_BUFSIZE];
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+ int type, pfd, err;
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+
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+- if (ref_ctr_off >= (1ULL << PERF_UPROBE_REF_CTR_OFFSET_BITS))
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++ if (BITS_PER_LONG > 32 && ref_ctr_off >= (1ULL << PERF_UPROBE_REF_CTR_OFFSET_BITS))
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+ return -EINVAL;
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+
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+ type = uprobe ? determine_uprobe_perf_type()
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+--
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+2.34.1
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+
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+
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+From 08bdb3dba2ace03bc48e25b9a6136fc48e1991c9 Mon Sep 17 00:00:00 2001
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+From: Khem Raj <raj.khem@gmail.com>
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+Date: Sun, 4 Dec 2022 18:55:34 -0800
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+Subject: [PATCH 2/2] perf python: Account for multiple words in CC
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+
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+Sometimes build systems may append options e.g. --sysroot etc. to CC
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+variable especially in cross-compile environments like yocto project
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+where CC varable is composed of cross-compiler name and some needed
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+options for it to work in a relocatable environment. Therefore separate
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+out the compiler name from rest of the options in CC, then add the
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+options via second argument to Popen() API
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+
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+Cc: Adrian Hunter <adrian.hunter@intel.com>
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+Cc: Fangrui Song <maskray@google.com>
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+Cc: Florian Fainelli <f.fainelli@gmail.com>
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+Cc: Ian Rogers <irogers@google.com>
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+Cc: Jiri Olsa <jolsa@kernel.org>
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+Cc: John Keeping <john@metanate.com>
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+Cc: Leo Yan <leo.yan@linaro.org>
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+Cc: Michael Petlan <mpetlan@redhat.com>
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+Cc: Namhyung Kim <namhyung@kernel.org>
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+Cc: Nathan Chancellor <nathan@kernel.org>
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+Cc: Nick Desaulniers <ndesaulniers@google.com>
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+Cc: Sedat Dilek <sedat.dilek@gmail.com>
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+Signed-off-by: Khem Raj <raj.khem@gmail.com>
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+Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
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+---
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+ tools/perf/util/setup.py | 2 +-
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+ 1 file changed, 1 insertion(+), 1 deletion(-)
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+
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+diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py
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+index c255a2c90cd6..3699b3f8d2d7 100644
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+--- a/tools/perf/util/setup.py
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++++ b/tools/perf/util/setup.py
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+@@ -7,7 +7,7 @@ cc_is_clang = b"clang version" in Popen([cc.split()[0], "-v"], stderr=PIPE).stde
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+ src_feature_tests = getenv('srctree') + '/tools/build/feature'
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+
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+ def clang_has_option(option):
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+- cc_output = Popen([cc, option, path.join(src_feature_tests, "test-hello.c") ], stderr=PIPE).stderr.readlines()
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++ cc_output = Popen([cc.split()[0], str(cc.split()[1:]) + option, path.join(src_feature_tests, "test-hello.c") ], stderr=PIPE).stderr.readlines()
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+ return [o for o in cc_output if ((b"unknown argument" in o) or (b"is not supported" in o))] == [ ]
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+
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+ if cc_is_clang:
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+--
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+2.34.1
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+
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diff --git a/meta/recipes-kernel/linux/linux-yocto_5.15.bb b/meta/recipes-kernel/linux/linux-yocto_5.15.bb
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index d5f21daf35b..d9535e65a97 100644
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--- a/meta/recipes-kernel/linux/linux-yocto_5.15.bb
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+++ b/meta/recipes-kernel/linux/linux-yocto_5.15.bb
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@@ -37,6 +37,8 @@ KBRANCH:class-devupstream = "v5.15/base"
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SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;name=machine;branch=${KBRANCH}; \
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git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-5.15;destsuffix=${KMETA}"
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+SRC_URI += "file://0001-perf-python-Account-for-multiple-words-in-CC.patch"
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+
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LIC_FILES_CHKSUM = "file://COPYING;md5=6bc538ed5bd9a7fc9398086aedcd7e46"
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LINUX_VERSION ?= "5.15.78"
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--
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2.34.1
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@@ -4,6 +4,11 @@ header:
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repos:
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meta-clang:
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url: https://github.com/kraj/meta-clang
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poky:
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patches:
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perf:
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repo: meta-arm
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path: 0001-linux-yocto-fix-perf-with-clang.patch
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local_conf_header:
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clang: |
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