poky: subtree update:c8075ed8f1..7d0988966c

Adrian (1):
      weston-init: Set $HOME variable for SysVinit manager

Alejandro Hernandez Samaniego (6):
      bitbake: bitbake: Add Azure Storage fetcher implementation
      bitbake: docs: Add Az fetcher documentation
      bitbake: docs: Add AZ_SAS definition to glossary
      ref-manual: Add Az fetcher documentation
      sanity.bbclass: Add az fetcher to accepted URI protocols for mirrors sanity
      devtool: Fix do_kernel_configme task

Alexander Kanavin (23):
      core-image.bbclass: add a weston IMAGE_FEATURE, similar to x11-base
      rootfs-postcommands: correctly set systemd target for weston images
      oeqa/weston: correctly run wayland-info when systemd is in use
      dnf: upgrade 4.5.2 -> 4.6.0
      libdnf: update 0.55.2 -> 0.58.0
      libdnf: replace a musl fix with a better one
      librepo: update 1.12.1 -> 1.13.0
      libical: update 3.0.8 -> 3.0.9
      libical: drop the ad hoc native generator build
      bmap-tools: upgrade 3.5 -> 3.6
      procps: update 3.3.16 -> 3.3.17
      libxcrypt: fix sporadic failures in nativesdk-libxcrypt-compat
      bind: upgrade 9.16.11 -> 9.16.12
      spirv-headers: update to latest revision
      spirv-tools: upgrade 2020.6 -> 2020.7
      mesa: update 20.3.4 -> 21.0.0
      attr: update 2.4.48 -> 2.5.1
      asciidoc: update 9.0.4 -> 9.1.0
      libhandy: update 1.0.3 -> 1.2.0
      strace: update 5.10 -> 5.11
      automake: update 1.16.2 - > 1.16.3
      xxhash: import from meta-oe
      apt: update 1.8.2.2 -> 2.2.2

Alistair Francis (4):
      openssl: Enable building for RISC-V 32-bit
      linux-yocto: Add qemuriscv32 as a compatible machine
      machine: Initial commit of qemuriscv32
      u-boot: Add support for building for qemuriscv32

Andrei Gherzan (3):
      gcr: Add support for building without x11
      epiphany: Add package configuration for building in developer mode
      glibc: Backport patch to fix _SC_LEVEL1_ICACHE_LINESIZE

Anton D. Kachalov (1):
      run-postinsts: do not remove postinsts directory.

Awais Belal (2):
      libsdl2: disable shared memory for native builds
      rootfs.py: uninstall the run-postinsts package if not needed

Bartosz Golaszewski (1):
      python3: make pydoc rdepend on python3-io

Bruce Ashfield (27):
      linux-yocto/5.10: fix x86 32bit boot warnings
      linux-yocto/5.10: fix qemumips testimage failures
      linux-yocto/5.10: update to v5.10.17 and -rt31
      linux-yocto/5.4: update to v5.4.99
      linux-yocto/5.10: update to v5.10.19
      linux-yocto/5.4: update to v5.4.101
      perf: fix reproducibility issues
      linux-yocto/5.4: update to v5.4.103
      kern-tools: symbol-why fix and README update
      linux-yocto/5.10: update to v5.10.21
      linux-yocto/qemuarmv5: fix configuration warning
      yocto-bsp: update reference platforms to latest 5.10
      perf: reproducibility fixes for pmu-events.c
      reproducibile: remove perf from exclusions
      linux-yocto/5.10: fix SERIAL_OF_PLATFORM warning
      linux-yocto/5.4: update to v5.4.105
      linux-yocto/5.10: update to v5.10.23
      linux-yocto/5.10: cfg: features/numa: Remove NODES_SPAN_OTHER_NODES option
      lttng-modules: update devupstream to 2.12.5+
      lttng-modules: backport patches to fix build against 5.12+ kernel
      kernel-devsrc: fix on-target scripts/prepare for v5.12+
      linux-yocto/5.10: cfg: fix ppc64 configuration warnings
      linux-yocto-dev: bump to v5.12-rc
      linux-yocto/5.10: update qemuriscv32 v5.10.23
      linux-yocto/5.10: update to v5.10.25
      linux-yocto/5.4: update to v5.4.107
      linux-yocto-rt/5.10: update to -rt34

Changqing Li (1):
      go-helloworld: disable module-aware mode

Charlie Davies (9):
      bitbake-bblayers/create: Fix incorrect priority help message
      bitbake-bblayers/create: Add optional layerid argument
      bitbake: bitbake: providers: remove unneeded logging call
      bitbake: bitbake: providers: consistent single line formatting between functions
      bitbake: bitbake: providers: introduce logic for REQUIRED_VERSION variable
      bitbake: bitbake: providers: check for REQUIRED_VERSION in _filterProviders
      bitbake: bitbake: lib: add Required Version to Bitbake --show-versions command
      bitbake: bitbake: cooker: Add REQUIRED_VERSION checks
      multilib_global: handle REQUIRED_VERSION

Chen Qi (3):
      python3-jinja2: set CVE_PRODUCT
      bitbake: event.py: fix regression about INVALIDCONF
      populate_sdk_ext: record METADATA_REVISION

Christopher Larson (2):
      buildhistory: add missing vardepsexcludes
      image,populate_sdk_base: move 'func' flag setting for sdk command vars

Diego Santa Cruz (2):
      rpm: split build and extra functionality into separate packages
      sstate-diff-machines.sh: support rpm, deb and tar package types in analysis

Dorinda (8):
      meta/recipes-rt: Add HOMEPAGE / DESCRIPTION
      meta-skeleton: Add HOMEPAGE / DESCRIPTION
      meta/recipes-extended: Add HOMEPAGE / DESCRIPTION
      meta/recipes-support: Add HOMEPAGE / DESCRIPTION
      meta/recipes-kernel: Add HOMEPAGE / DESCRIPTION
      meta/recipes-multimedia: Add HOMEPAGE / DESCRIPTION
      meta/recipes-graphics: Add HOMEPAGE / DESCRIPTION
      dev-manual/common-task.rst: Added documentation for debuginfod support

Dorinda Bassey (4):
      meta/recipes-devtools: Add HOMEPAGE / DESCRIPTION
      distrodata.py: Test to track recipes without HOMEPAGE or DESCRIPTION
      meta-selftest: Add HOMEPAGE / DESCRIPTION
      devshell.bbclass: Exceptions displayed within devpyshell

Douglas Royds (2):
      cmake: Fully-qualified path to ar
      externalsrc: Detect code changes in submodules

Jon Mason (5):
      runqemu: use "raw" instead of "bin" for ovmf
      runqemu: add QB_GRAPHICS
      runqemu: correct forcing of ttyS0
      runqemu: modify novga to conform to documentation
      tune-cortexa32: Add hard FPU

Jose Quaresma (4):
      spirv-tools: python3 is need not only for the tests
      spirv-tools: cleanup an old patch that is not used anymore
      gstreamer1.0: upgrade 1.18.3 -> 1.18.4
      gstreamer1.0-plugins-good: fix rtpjitterbuffer regression

Kai Kang (2):
      toolchain-scripts.bbclass: customize prompt string for SDKs
      local.conf.sample.extended: sample value for SDK_PS1

Kevin Hao (1):
      meta-yocto-bsp: beaglebone: Set a fixed size for boot partition in WIC image

Khairul Rohaizzat Jamaluddin (1):
      glibc: Fix CVE-2021-27645

Khem Raj (33):
      python3-cython: Check for files before editing
      webkitgtk: Use linker options to reduce memory overhead during linking
      webkitgtk: Enhance check for atomics to include 1 byte CAS
      qemuppc64: Add a QEMU machine definition for ppc64
      linux-yocto: Enable powerpc64le QEMU
      formfactor: Add machine config for qemuppc64
      inittab: Add getty launch on hvc0 for qemuppc64
      parselogs: Allow expected kernel messages for qemuppc64
      spirv-tools: Replace strncpy with memcpy
      python3-setuptools: Upgrade 54.1.0 -> 54.1.1
      perf: Remove libunwind for rv32
      Enable qemu usermode on ppc64
      cmake.bbclass: Create cmake arch mapping for ppc64le
      libucontext: Recognize ppc64le architecture
      libunwind: Do not assume libdir for ppc64
      gcc: Package new module mapper tool
      glib-2.0: Drop volatile qualifier
      go: Update to 1.16.2
      go-dep: Remove
      libunwind: Link with libucontext on musl
      libedit: upgrade 20191231-3.1 -> 20210216-3.1
      webkitgtk: Reduce stack and heap sizes for jsc on musl
      webkitgtk: Add packageconfig to chose between size and speed
      webkitgtk: enable strlen and stpcpy on musl/linux too
      gcc-sanitizers: Package up hwasan files
      apt: Support old resolver as fallback
      apt: Do not disable NLS
      valgrind: Fix ptests on ppc64 LE
      documentation-audit.sh: Fix typo in specifying LICENSE_FLAGS_WHITELIST
      image-uefi: Set efi_file for rv32/rv64
      grub2: Disable for RISCV32
      grub-efi: Re-introduce lost cast to long
      grub2: Enable on riscv32

Lee Chee Yang (2):
      cve-update-db-native: consider version suffix when update CVE db
      cve-check: CVE_VERSION_SUFFIX to work with patched release

Li Wang (1):
      linux-dummy: add empty dependent packages

Luca Boccassi (2):
      util-linux: split uuid in separate recipe to allow bootstrapping
      util-linux: backport patch to skip build of unused objects

Manuel Leonhardt (1):
      bitbake: tinfoil: Honor quiet when parsing recipes

Mark Hatle (2):
      populate_sdk_ext: Avoid copying and producing .pyc files
      populate_sdk_ext: Add support for PR service

Martin Jansa (7):
      glib-2.0: call os.path.normpath on THISDIR
      glib-2.0: show an error about --cross-file only when such file exists
      busybox: refresh the defconfig from 1.33.0
      busybox-inittab: rename for PV to match with busybox's PV
      iso-codes: fix protocol in SRC_URI
      packagegroup-core-weston.bb: add pam to REQUIRED_DISTRO_FEATURES
      python3: fix PACKAGECONFIG handling

Michael Opdenacker (4):
      bitbake: doc: Update links to documentation
      Do not assume working from $HOME
      Update documentation URL
      documentation/README minor improvements

Michael Trensch (1):
      linux-firmware: Fix packaging

Mikko Rapeli (1):
      openssl: update to 1.1.1k to fix CVE-2021-3450 and CVE-2021-3449

Ming Liu (2):
      kernel-fitimage.bbclass: support both KERNEL_DEVICETREE/EXTERNAL_KERNEL_DEVICETREE
      initramfs-framework:rootfs: fix some conditional check

Mingli Yu (1):
      libtool: make sure autoheader run before autoconf

Minjae Kim (3):
      qemu: fix CVE-2021-20203
      git: fix CVE-2021-21300
      git: upgrade 2.30.1 -> 2.31.1

Naveen Saini (1):
      grub: upgrade 2.04 -> 2.06~rc1

Oleksandr Kravchuk (1):
      python3-setuptools: update to 54.1.0

Paul Gortmaker (1):
      bitbake: gitignore: ignore runqueue-tests/bitbake-cookerdaemon.log

Peter Kjellerstedt (4):
      meson: Correctly set uid/gid of installed files
      uninative-tarball: Add a dependency on nativesdk-glibc-dbg
      metadata_scm.bbclass: Use immediate expansion for the METADATA_* variables
      license.bbclass: Improve parsing time when INCOMPATIBLE_LICENSES is big

Petr Vorel (1):
      scripts/verify-bashisms: Update checkbashisms.pl URL

Purushottam Choudhary (1):
      shadow: whitelist CVE-2013-4235

Randy MacLeod (2):
      ffmpeg: upgrade 4.3.1 -> 4.3.2
      zstd: upgrade 1.4.8 -> 1.4.9

Richard Purdie (33):
      ltp: Fix another determinism issue
      build-appliance-image: Drop kernel module handling
      ltp: Further extend reproducibility patch
      bitbake: runqueue: Fix task execution corruption issue
      bitbake: runqueue: Add setscene task overlap sanity check
      bitbake: __init__.py: Fix bitbake debug log handling
      ltp: Fix determinism issue
      ltp: Fix libswapon issue properly
      bitbake: event: Fix multiconfig event handler change performance regressions
      bitbake: event: Fix another 'if d' test to test for None explictly
      bitbake: tests/color: Fix event register to pass the datastore
      bitbake: bblayers/query: Update to handle REQUIRED_VERSION
      scripts/contrib/list-packageconfig-flags: Upate for tinfoil API changes
      layer.conf: Update for hardknott release series
      layer.conf: Update for hardknott release series
      build-appliance-image: Update to master head revision
      layer.conf: Add gatesgarth back for now to allow for transition
      build-appliance-image: Update to master head revision
      meson: Work around determinism issue
      lttng-tools: upgrade 2.12.2 -> 2.12.3
      lttng-modules: upgrade 2.12.4 -> 2.12.5
      sqlite3: upgrade 3.34.1 -> 3.35.0
      sudo: upgrade 1.9.5p2 -> 1.9.6
      selftest/reproducible: Drop ovmf exclusion
      selftest/wic: Fix dependency issue in rawcopy test
      layer.conf: Drop gatesgarth from the layer series names
      bitbake: build: Add find_stale_stamps function
      bitbake: runqueue/event: Add an event for notifying of stale setscene tasks
      sstate: Remove stale objects before the main build
      sstate: Add documentation for eventhandlers and tweak naming
      site/elfutils/libunistring: Drop patching for iconv and set in site file
      build-appliance-image: Update to master head revision
      util-linux-libuuid: Simplify recipe and rename from util-linux-uuid

Robert P. J. Day (8):
      bitbake-whatchanged: change ending quote to proper period
      bitbake: doc: move BBFILES_DYNAMIC for alphabetical order
      ref-manual: remove erroneous '\*' from variables list
      bitbake: doc: mention that addtask handles multiple dependencies
      bitbake: doc: fix glossary link for BB_INVALIDCONF variable
      bitbake: doc: fix syntax error in layer.conf example
      bitbake.conf: correct description of HOSTTOOLS_DIR
      packagegroups: delete useless "PROVIDES" lines

Robert Yang (1):
      image.bbclass: deltask do_packagedata

Ross Burton (13):
      libinput: less parallism to increase chances the test suite works
      ptest-packagelists: remove libinput-ptest
      insane: don't check for a warning string that is never output
      gcc: add an option for --enable-poison-system-directories to be fatal
      gcc-cross: make use of the system include directories fatal
      oeqa/selftest: add test to verify that poisoned sysroots are detected
      ovmf: make output binaries reproducible
      base: respect downloadfilename when sniffing the SRC_URI for dependencies
      lib/oe/utils: add directory size function
      classes/image: use oe.utils.directory_size() instead of du
      bitbake.conf: ensure BUILD_* tools match target tools
      meson: fix native/host confusion in gobject-introspection
      meson: use native-file instead of environment variables

Sakib Sajal (2):
      buildstats.bbclass: improve timeout handling
      scripts: add oe-time-dd-test.sh

Scott Murray (1):
      u-boot: Fix CVE-2021-27097, CVE-2021-27138

Stefan Ghinea (1):
      wpa-supplicant: fix CVE-2021-27803

Stefan Schmidt (1):
      systemd-conf: do not ask for DHCP if configured on kernel command line

Tomasz Dziendzielski (2):
      bitbake: runqueue: Print pseudo.log if fakeroot task failed
      bitbake: codeparser: Fix TypeError in bitbake debug mode

Ulrich ?lmann (1):
      gstreamer1.0: add support for coretracers

Ulrich Ölmann (3):
      common-tasks.rst: fix 'wic cp' command
      common-tasks.rst: fix typo
      local.conf.sample: fix typo

Vivien Didelot (6):
      systemd-container: sort RRECOMMENDS alphabetically
      systemd-container: recommend tar
      systemd-container: recommends StartExecPre modules
      poky: fix typos
      poky: don't use space with +=
      beaglebone-yocto: allow other virtual/bootloader

Wang Mingyu (20):
      shaderc: upgrade 2020.4 -> 2020.5
      stress-ng: upgrade 0.12.03 -> 0.12.04
      taglib: upgrade 1.11.1 -> 1.12
      vala: upgrade 0.50.3 -> 0.50.4
      python3-pygments: upgrade 2.8.0 -> 2.8.1
      python3-zipp: upgrade 3.4.0 -> 3.4.1
      sysklogd: upgrade 2.2.1 -> 2.2.2
      help2man: upgrade 1.48.1 -> 1.48.2
      iso-codes: upgrade 4.5.0 -> 4.6.0
      jquery: upgrade 3.5.1 -> 3.6.0
      ovmf: upgrade 202011 -> 202102
      msmtp: upgrade 1.8.14 -> 1.8.15
      gptfdisk: upgrade 1.0.6 -> 1.0.7
      vulkan-headers: upgrade 1.2.162.0 -> 1.2.170.0
      vulkan-loader: upgrade 1.2.162.0 -> 1.2.170.0
      vulkan-tools: upgrade 1.2.162.1 -> 1.2.170.0
      gcc: Update patch to only patch files once
      openssh: upgrade 8.4p1 -> 8.5p1
      openssh: Improve LICENSE to show BSD license variants.
      gnutls: upgrade 3.7.0 -> 3.7.1

Yanfei Xu (1):
      glibc: fix pthread_cond_destroy hangs with process-shared mutex

Yann Dirson (1):
      ffmpeg: disable GPL features by default

Yi Fan Yu (1):
      valgrind: Fix nlcontrolc.vgtest

jan (1):
      cve-update-db-native: Allow to overrule the URL in a bbappend.

wangmy@fujitsu.com (1):
      systemd: upgrade 247.3 -> 247.4

zhengruoqin (3):
      sudo: upgrade 1.9.6 -> 1.9.6p1
      liburi-perl: upgrade 1.74 -> 5.08
      stress-ng: upgrade 0.12.04 -> 0.12.05

Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Change-Id: I04195d4c610ca1674dd736eceeb6442d974cb711

4 files changed, 349 insertions, 0 deletions

diff --git a/poky/meta/recipes-kernel/lttng/lttng-modules/0001-Fix-memory-leaks-on-event-destroy.patch b/poky/meta/recipes-kernel/lttng/lttng-modules/0001-Fix-memory-leaks-on-event-destroy.patch
new file mode 100644
index 000000000..21da932a7
--- /dev/null
+++ b/poky/meta/recipes-kernel/lttng/lttng-modules/0001-Fix-memory-leaks-on-event-destroy.patch
@@ -0,0 +1,58 @@
+From b3fdf78b15beb940918da1e41eb68e24ba31bb87 Mon Sep 17 00:00:00 2001
+From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+Date: Wed, 3 Mar 2021 10:10:16 -0500
+Subject: [PATCH 1/4] Fix: memory leaks on event destroy
+
+Both filter runtime and event enabler ref objects are owned by the
+event, but are not freed upon destruction of the event object, thus
+leaking memory.
+
+Upstream-status: backport
+
+Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+Change-Id: Ice9b1c18b47584838aea2b965494d3c8391f4c84
+---
+ lttng-events.c | 7 +++++++
+ lttng-events.h | 1 +
+ 2 files changed, 8 insertions(+)
+
+diff --git a/lttng-events.c b/lttng-events.c
+index f3398adc..984bd341 100644
+--- a/lttng-events.c
++++ b/lttng-events.c
+@@ -919,6 +919,8 @@ int _lttng_event_unregister(struct lttng_event *event)
+ static
+ void _lttng_event_destroy(struct lttng_event *event)
+ {
++	struct lttng_enabler_ref *enabler_ref, *tmp_enabler_ref;
++
+ 	switch (event->instrumentation) {
+ 	case LTTNG_KERNEL_TRACEPOINT:
+ 		lttng_event_put(event->desc);
+@@ -944,6 +946,11 @@ void _lttng_event_destroy(struct lttng_event *event)
+ 	}
+ 	list_del(&event->list);
+ 	lttng_destroy_context(event->ctx);
++	lttng_free_event_filter_runtime(event);
++	/* Free event enabler refs */
++	list_for_each_entry_safe(enabler_ref, tmp_enabler_ref,
++				 &event->enablers_ref_head, node)
++		kfree(enabler_ref);
+ 	kmem_cache_free(event_cache, event);
+ }
+ 
+diff --git a/lttng-events.h b/lttng-events.h
+index 1b9ab167..13b6abf5 100644
+--- a/lttng-events.h
++++ b/lttng-events.h
+@@ -716,6 +716,7 @@ int lttng_enabler_attach_bytecode(struct lttng_enabler *enabler,
+ 		struct lttng_kernel_filter_bytecode __user *bytecode);
+ void lttng_enabler_event_link_bytecode(struct lttng_event *event,
+ 		struct lttng_enabler *enabler);
++void lttng_free_event_filter_runtime(struct lttng_event *event);
+ 
+ int lttng_probes_init(void);
+ 
+-- 
+2.19.1
+
diff --git a/poky/meta/recipes-kernel/lttng/lttng-modules/0002-Fix-filter-interpreter-early-exits-on-uninitialized-.patch b/poky/meta/recipes-kernel/lttng/lttng-modules/0002-Fix-filter-interpreter-early-exits-on-uninitialized-.patch
new file mode 100644
index 000000000..609690f05
--- /dev/null
+++ b/poky/meta/recipes-kernel/lttng/lttng-modules/0002-Fix-filter-interpreter-early-exits-on-uninitialized-.patch
@@ -0,0 +1,159 @@
+From 23a2f61ffc6a656f136fa2044c0c3b8f79766779 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?J=C3=A9r=C3=A9mie=20Galarneau?=
+ <jeremie.galarneau@efficios.com>
+Date: Wed, 3 Mar 2021 18:52:19 -0500
+Subject: [PATCH 2/4] Fix: filter interpreter early-exits on uninitialized
+ value
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+I observed that syscall filtering on string arguments wouldn't work on
+my development machines, both running 5.11.2-arch1-1 (Arch Linux).
+
+For instance, enabling the tracing of the `openat()` syscall with the
+'filename == "/proc/cpuinfo"' filter would not produce events even
+though matching events were present in another session that had no
+filtering active. The same problem occurred with `execve()`.
+
+I tried a couple of kernel versions before (5.11.1 and 5.10.13, if
+memory serves me well) and I had the same problem. Meanwhile, I couldn't
+reproduce the problem on various Debian machines (the LTTng CI) nor on a
+fresh Ubuntu 20.04 with both the stock kernel and with an updated 5.11.2
+kernel.
+
+I built the lttng-modules with the interpreter debugging printout and
+saw the following warning:
+  LTTng: [debug bytecode in /home/jgalar/EfficiOS/src/lttng-modules/src/lttng-bytecode-interpreter.c:bytecode_interpret@1508] Bytecode warning: loading a NULL string.
+
+After a shedload (yes, a _shed_load) of digging, I figured that the
+problem was hidden in plain sight near that logging statement.
+
+In the `BYTECODE_OP_LOAD_FIELD_REF_USER_STRING` operation, the 'ax'
+register's 'user_str' is initialized with the stack value (the user
+space string's address in our case). However, a NULL check is performed
+against the register's 'str' member.
+
+I initialy suspected that both members would be part of the same union
+and alias each-other, but they are actually contiguous in a structure.
+
+On the unaffected machines, I could confirm that the `str` member was
+uninitialized to a non-zero value causing the condition to evaluate to
+false.
+
+Francis Deslauriers reproduced the problem by initializing the
+interpreter stack to zero.
+
+I am unsure of the exact kernel configuration option that reveals this
+issue on Arch Linux, but my kernel has the following option enabled:
+
+CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL:
+   Zero-initialize any stack variables that may be passed by reference
+   and had not already been explicitly initialized. This is intended to
+   eliminate all classes of uninitialized stack variable exploits and
+   information exposures.
+
+I have not tried to build without this enabled as, anyhow, this seems
+to be a legitimate issue.
+
+I have spotted what appears to be an identical problem in
+`BYTECODE_OP_LOAD_FIELD_REF_USER_SEQUENCE` and corrected it. However,
+I have not exercised that code path.
+
+The commit that introduced this problem is 5b4ad89.
+
+The debug print-out of the `BYTECODE_OP_LOAD_FIELD_REF_USER_STRING`
+operation is modified to print the user string (truncated to 31 chars).
+
+Upstream-status: backport
+
+Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
+Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+Change-Id: I2da3c31b9e3ce0e1b164cf3d2711c0893cbec273
+---
+ lttng-filter-interpreter.c | 41 ++++++++++++++++++++++++++++++++++----
+ 1 file changed, 37 insertions(+), 4 deletions(-)
+
+diff --git a/lttng-filter-interpreter.c b/lttng-filter-interpreter.c
+index 5d572437..6e5a5139 100644
+--- a/lttng-filter-interpreter.c
++++ b/lttng-filter-interpreter.c
+@@ -22,7 +22,7 @@ LTTNG_STACK_FRAME_NON_STANDARD(lttng_filter_interpret_bytecode);
+  * to handle user-space read.
+  */
+ static
+-char get_char(struct estack_entry *reg, size_t offset)
++char get_char(const struct estack_entry *reg, size_t offset)
+ {
+ 	if (unlikely(offset >= reg->u.s.seq_len))
+ 		return '\0';
+@@ -593,6 +593,39 @@ end:
+ 	return ret;
+ }
+ 
++#ifdef DEBUG
++
++#define DBG_USER_STR_CUTOFF 32
++
++/*
++ * In debug mode, print user string (truncated, if necessary).
++ */
++static inline
++void dbg_load_ref_user_str_printk(const struct estack_entry *user_str_reg)
++{
++	size_t pos = 0;
++	char last_char;
++	char user_str[DBG_USER_STR_CUTOFF];
++
++	pagefault_disable();
++	do {
++		last_char = get_char(user_str_reg, pos);
++		user_str[pos] = last_char;
++		pos++;
++	} while (last_char != '\0' && pos < sizeof(user_str));
++	pagefault_enable();
++
++	user_str[sizeof(user_str) - 1] = '\0';
++	dbg_printk("load field ref user string: '%s%s'\n", user_str,
++		last_char != '\0' ? "[...]" : "");
++}
++#else
++static inline
++void dbg_load_ref_user_str_printk(const struct estack_entry *user_str_reg)
++{
++}
++#endif
++
+ /*
+  * Return 0 (discard), or raise the 0x1 flag (log event).
+  * Currently, other flags are kept for future extensions and have no
+@@ -1313,7 +1346,7 @@ uint64_t lttng_filter_interpret_bytecode(void *filter_data,
+ 			estack_push(stack, top, ax, bx);
+ 			estack_ax(stack, top)->u.s.user_str =
+ 				*(const char * const *) &filter_stack_data[ref->offset];
+-			if (unlikely(!estack_ax(stack, top)->u.s.str)) {
++			if (unlikely(!estack_ax(stack, top)->u.s.user_str)) {
+ 				dbg_printk("Filter warning: loading a NULL string.\n");
+ 				ret = -EINVAL;
+ 				goto end;
+@@ -1322,7 +1355,7 @@ uint64_t lttng_filter_interpret_bytecode(void *filter_data,
+ 			estack_ax(stack, top)->u.s.literal_type =
+ 				ESTACK_STRING_LITERAL_TYPE_NONE;
+ 			estack_ax(stack, top)->u.s.user = 1;
+-			dbg_printk("ref load string %s\n", estack_ax(stack, top)->u.s.str);
++			dbg_load_ref_user_str_printk(estack_ax(stack, top));
+ 			next_pc += sizeof(struct load_op) + sizeof(struct field_ref);
+ 			PO;
+ 		}
+@@ -1340,7 +1373,7 @@ uint64_t lttng_filter_interpret_bytecode(void *filter_data,
+ 			estack_ax(stack, top)->u.s.user_str =
+ 				*(const char **) (&filter_stack_data[ref->offset
+ 								+ sizeof(unsigned long)]);
+-			if (unlikely(!estack_ax(stack, top)->u.s.str)) {
++			if (unlikely(!estack_ax(stack, top)->u.s.user_str)) {
+ 				dbg_printk("Filter warning: loading a NULL sequence.\n");
+ 				ret = -EINVAL;
+ 				goto end;
+-- 
+2.19.1
+
diff --git a/poky/meta/recipes-kernel/lttng/lttng-modules/0003-fix-mm-tracing-record-slab-name-for-kmem_cache_free-.patch b/poky/meta/recipes-kernel/lttng/lttng-modules/0003-fix-mm-tracing-record-slab-name-for-kmem_cache_free-.patch
new file mode 100644
index 000000000..71f99b80a
--- /dev/null
+++ b/poky/meta/recipes-kernel/lttng/lttng-modules/0003-fix-mm-tracing-record-slab-name-for-kmem_cache_free-.patch
@@ -0,0 +1,91 @@
+From 49c603ef2dc6969f4454f0d849af00ee24bb7f04 Mon Sep 17 00:00:00 2001
+From: Michael Jeanson <mjeanson@efficios.com>
+Date: Thu, 4 Mar 2021 16:50:12 -0500
+Subject: [PATCH 3/4] fix: mm, tracing: record slab name for kmem_cache_free()
+ (v5.12)
+
+See upstream commit:
+
+  commit 3544de8ee6e4817278b15fe08658de49abf58954
+  Author: Jacob Wen <jian.w.wen@oracle.com>
+  Date:   Wed Feb 24 12:00:55 2021 -0800
+
+    mm, tracing: record slab name for kmem_cache_free()
+
+    Currently, a trace record generated by the RCU core is as below.
+
+    ... kmem_cache_free: call_site=rcu_core+0x1fd/0x610 ptr=00000000f3b49a66
+
+    It doesn't tell us what the RCU core has freed.
+
+    This patch adds the slab name to trace_kmem_cache_free().
+    The new format is as follows.
+
+    ... kmem_cache_free: call_site=rcu_core+0x1fd/0x610 ptr=0000000037f79c8d name=dentry
+    ... kmem_cache_free: call_site=rcu_core+0x1fd/0x610 ptr=00000000f78cb7b5 name=sock_inode_cache
+    ... kmem_cache_free: call_site=rcu_core+0x1fd/0x610 ptr=0000000018768985 name=pool_workqueue
+    ... kmem_cache_free: call_site=rcu_core+0x1fd/0x610 ptr=000000006a6cb484 name=radix_tree_node
+
+    We can use it to understand what the RCU core is going to free. For
+    example, some users maybe interested in when the RCU core starts
+    freeing reclaimable slabs like dentry to reduce memory pressure.
+
+    Link: https://lkml.kernel.org/r/20201216072804.8838-1-jian.w.wen@oracle.com
+
+Upstream-status: backport
+
+Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
+Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+Change-Id: I1ee2fc476614cadcc8d3ac5d8feddc7910e1aa3a
+---
+ instrumentation/events/lttng-module/kmem.h | 27 ++++++++++++++++++++++
+ 1 file changed, 27 insertions(+)
+
+diff --git a/instrumentation/events/lttng-module/kmem.h b/instrumentation/events/lttng-module/kmem.h
+index b134620a..d787ea54 100644
+--- a/instrumentation/events/lttng-module/kmem.h
++++ b/instrumentation/events/lttng-module/kmem.h
+@@ -87,6 +87,32 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE(kmem_alloc_node, kmem_cache_alloc_node,
+ 	TP_ARGS(call_site, ptr, bytes_req, bytes_alloc, gfp_flags, node)
+ )
+ 
++#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,12,0))
++LTTNG_TRACEPOINT_EVENT(kfree,
++
++	TP_PROTO(unsigned long call_site, const void *ptr),
++
++	TP_ARGS(call_site, ptr),
++
++	TP_FIELDS(
++		ctf_integer_hex(unsigned long, call_site, call_site)
++		ctf_integer_hex(const void *, ptr, ptr)
++	)
++)
++
++LTTNG_TRACEPOINT_EVENT(kmem_cache_free,
++
++	TP_PROTO(unsigned long call_site, const void *ptr, const char *name),
++
++	TP_ARGS(call_site, ptr, name),
++
++	TP_FIELDS(
++		ctf_integer_hex(unsigned long, call_site, call_site)
++		ctf_integer_hex(const void *, ptr, ptr)
++		ctf_string(name, name)
++	)
++)
++#else
+ LTTNG_TRACEPOINT_EVENT_CLASS(kmem_free,
+ 
+ 	TP_PROTO(unsigned long call_site, const void *ptr),
+@@ -114,6 +140,7 @@ LTTNG_TRACEPOINT_EVENT_INSTANCE(kmem_free, kmem_cache_free,
+ 
+ 	TP_ARGS(call_site, ptr)
+ )
++#endif
+ 
+ #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,3,0))
+ LTTNG_TRACEPOINT_EVENT_MAP(mm_page_free, kmem_mm_page_free,
+-- 
+2.19.1
+
diff --git a/poky/meta/recipes-kernel/lttng/lttng-modules/0004-Fix-kretprobe-null-ptr-deref-on-session-destroy.patch b/poky/meta/recipes-kernel/lttng/lttng-modules/0004-Fix-kretprobe-null-ptr-deref-on-session-destroy.patch
new file mode 100644
index 000000000..8a839c2b4
--- /dev/null
+++ b/poky/meta/recipes-kernel/lttng/lttng-modules/0004-Fix-kretprobe-null-ptr-deref-on-session-destroy.patch
@@ -0,0 +1,41 @@
+From 92cc3e7f76a545a2cd4828576971f1eea83f4e68 Mon Sep 17 00:00:00 2001
+From: Francis Deslauriers <francis.deslauriers@efficios.com>
+Date: Wed, 17 Mar 2021 10:40:56 -0400
+Subject: [PATCH 4/4] Fix: kretprobe: null ptr deref on session destroy
+
+The `filter_bytecode_runtime_head` list is currently not initialized for
+the return event of the kretprobe. This caused a kernel null ptr
+dereference when destroying a session. It can reproduced with the
+following commands:
+
+  lttng create
+  lttng enable-event -k --function=lttng_test_filter_event_write my_event
+  lttng start
+  lttng stop
+  lttng destroy
+
+Upstream-status: backport 
+
+Signed-off-by: Francis Deslauriers <francis.deslauriers@efficios.com>
+Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+Change-Id: I1162ce8b10dd7237a26331531f048346b984eee7
+---
+ lttng-events.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/lttng-events.c b/lttng-events.c
+index 984bd341..3450fa40 100644
+--- a/lttng-events.c
++++ b/lttng-events.c
+@@ -704,6 +704,8 @@ struct lttng_event *_lttng_event_create(struct lttng_channel *chan,
+ 		event_return->enabled = 0;
+ 		event_return->registered = 1;
+ 		event_return->instrumentation = itype;
++		INIT_LIST_HEAD(&event_return->bytecode_runtime_head);
++		INIT_LIST_HEAD(&event_return->enablers_ref_head);
+ 		/*
+ 		 * Populate lttng_event structure before kretprobe registration.
+ 		 */
+-- 
+2.19.1
+