'분류 전체보기' 카테고리의 글 목록 (83 Page)

'잡동사니'에 해당되는 글 13031건

2023.09.01 go packed struct
2023.08.31 슈퍼~~~문
2023.08.31 freecad 첫 드로잉 2
2023.08.31 cortex-a53
2023.08.31 missed: not vectorized: relevant stmt not supported:
2023.08.30 시스템 audit 로그
2023.08.29 bitbake --help
2023.08.28 opengl glortho gluperspective
2023.08.28 Do not use Bitbake as root.
2023.08.28 imx8 yocto

golang echo 구조체 배열은 미지원? (0)	2023.11.06
golang echo 패키지 소스 (0)	2023.09.13
golang asm (0)	2023.08.24
golang goarch=arm64 와 디스어셈블러 (0)	2023.08.23
golang echo 서버 이상한 버그 발견? (0)	2023.06.27

아부지 카메라 강탈! (0)	2023.11.23
eos m 수리 부품... (0)	2023.09.01
북두칠성, 오리온 그리고 불꽃놀이 (2)	2022.02.03
가을비 (0)	2021.10.31
안드로메다 은하, 플레아데스 성운 (0)	2021.10.29

CSG(Constructive solid geometry) freecad (0)	2024.08.30
freecad 사용법 다시.. (2)	2024.08.29
freeCAD 는 ubuntu24.04에서 사라졌나? (0)	2024.08.29
ubuntu용 cad 프로그램 (0)	2020.09.23
freecad 설명 (0)	2018.01.22

emmc 파티션 정렬 (0)	2024.02.07
arm asm rev (0)	2023.09.14
aarch64 vector register (0)	2023.08.23
arm vsub operator (0)	2023.08.09
ARM NEON SLP (0)	2023.08.07

missed: not vectorized: relevant stmt not supported:

cortex-a53 에서 neon 으로 실수 나누기를 하는데

이상하게 적용이 안되서 확인중

소스는 아래 한줄인데 stdev_val은 앞서 단계에서 계산한 변수라 그런가

scope 문제로 인해서 안될 것 같진 않은데

int tempval = (int)((value - abs_avg) / (int)stdev_val);

아무튼 에러는 아래와 같이. 332 라인은 for() 337은 위의 소스인데

modules/m7_adc.c:332:27: missed: couldn't vectorize loop
modules/m7_adc.c:337:11: missed: not vectorized: relevant stmt not supported: tempval_168 = _73 / stdev_val_162;

얘 되고

int tempval = (int)((double)(value - abs_avg) / (double)stdev_val);

얘도 된다.

int tempval = (int)((value - abs_avg) / (double)stdev_val);

나누기 연산에서 피 연산자가 int 형이면 안되고, double 형이면 된다라..

아래 문서를 참조해도 딱히 divide 연산자에 대한 이야기는 없고

cortex-a53이라면.. cortex-a9도 아니고.. hardware divider가 없을리도 없을 것 같은데.

아무튼.. 의외의 점이라면 예제코드 중에 곱셈은 있어도 나눗셈은 없다. (에이 설마..)

[링크 : https://gcc.gnu.org/projects/tree-ssa/vectorization.html]

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Posted by 구차니

[   11.843605] audit: type=1006 audit(1693798687.793:2): pid=487 uid=0 old-auid1
[   11.856080] audit: type=1300 audit(1693798687.793:2): arch=c00000b7 syscall=)
[   11.882615] audit: type=1327 audit(1693798687.793:2): proctitle="(systemd)"

type을 기호로 보여주는건 없나?

/* The netlink messages for the audit system is divided into blocks:
* 1000 - 1099 are for commanding the audit system
* 1100 - 1199 user space trusted application messages
* 1200 - 1299 messages internal to the audit daemon
* 1300 - 1399 audit event messages
* 1400 - 1499 SE Linux use
* 1500 - 1599 kernel LSPP events
* 1600 - 1699 kernel crypto events
* 1700 - 1799 kernel anomaly records
* 1800 - 1899 kernel integrity events
* 1900 - 1999 future kernel use
* 2000 is for otherwise unclassified kernel audit messages (legacy)
* 2001 - 2099 unused (kernel)
* 2100 - 2199 user space anomaly records
* 2200 - 2299 user space actions taken in response to anomalies
* 2300 - 2399 user space generated LSPP events
* 2400 - 2499 user space crypto events
* 2500 - 2999 future user space (maybe integrity labels and related events)
*
* Messages from 1000-1199 are bi-directional. 1200-1299 & 2100 - 2999 are
* exclusively user space. 1300-2099 is kernel --> user space
* communication.
*/

#define AUDIT_LOGIN 1006 /* Define the login id and information */

[링크 : https://sites.uclouvain.be/SystInfo/usr/include/linux/audit.h.html]

[링크 : https://access.redhat.com/documentation/ko-kr/red_hat_enterprise_linux/7/html/security_guide/sec-understanding_audit_log_files]

[링크 : https://access.redhat.com/documentation/ko-kr/red_hat_enterprise_linux/7/html/security_guide/chap-system_auditing]

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Posted by 구차니

bitbake --help

명령어 조사중

bitbake -c compile -f recipe 식으로 많이 써왔는데

상세 명령이나 recipre 목록등을 얻는 방법을 찾는 중

Usage: bitbake [options] [recipename/target recipe:do_task ...]

    Executes the specified task (default is 'build') for a given set of target recipes (.bb files).
    It is assumed there is a conf/bblayers.conf available in cwd or in BBPATH which
    will provide the layer, BBFILES and other configuration information.

Options:
  --version             show program's version number and exit
  -h, --help            show this help message and exit
  -b BUILDFILE, --buildfile=BUILDFILE
                        Execute tasks from a specific .bb recipe directly.
                        WARNING: Does not handle any dependencies from other
                        recipes.
  -k, --continue        Continue as much as possible after an error. While the
                        target that failed and anything depending on it cannot
                        be built, as much as possible will be built before
                        stopping.
  -f, --force           Force the specified targets/task to run (invalidating any existing stamp file).
  -c CMD, --cmd=CMD     Specify the task to execute. The exact options
                        available depend on the metadata. Some examples might
                        be 'compile' or 'populate_sysroot' or 'listtasks' may
                        give a list of the tasks available.
  -C INVALIDATE_STAMP, --clear-stamp=INVALIDATE_STAMP
                        Invalidate the stamp for the specified task such as
                        'compile' and then run the default task for the
                        specified target(s).
  -r PREFILE, --read=PREFILE
                        Read the specified file before bitbake.conf.
  -R POSTFILE, --postread=POSTFILE
                        Read the specified file after bitbake.conf.
  -v, --verbose         Enable tracing of shell tasks (with 'set -x'). Also
                        print bb.note(...) messages to stdout (in addition to
                        writing them to ${T}/log.do_<task>).
  -D, --debug           Increase the debug level. You can specify this more
                        than once. -D sets the debug level to 1, where only
                        bb.debug(1, ...) messages are printed to stdout; -DD
                        sets the debug level to 2, where both bb.debug(1, ...)
                        and bb.debug(2, ...) messages are printed; etc.
                        Without -D, no debug messages are printed. Note that
                        -D only affects output to stdout. All debug messages
                        are written to ${T}/log.do_taskname, regardless of the
                        debug level.
  -q, --quiet           Output less log message data to the terminal. You can
                        specify this more than once.
  -n, --dry-run         Don't execute, just go through the motions.
  -S SIGNATURE_HANDLER, --dump-signatures=SIGNATURE_HANDLER
                        Dump out the signature construction information, with
                        no task execution. The SIGNATURE_HANDLER parameter is
                        passed to the handler. Two common values are none and
                        printdiff but the handler may define more/less. none
                        means only dump the signature, printdiff means compare
                        the dumped signature with the cached one.
  -p, --parse-only      Quit after parsing the BB recipes.
  -s, --show-versions   Show current and preferred versions of all recipes.
  -e, --environment     Show the global or per-recipe environment complete
                        with information about where variables were
                        set/changed.
  -g, --graphviz        Save dependency tree information for the specified
                        targets in the dot syntax.
  -I EXTRA_ASSUME_PROVIDED, --ignore-deps=EXTRA_ASSUME_PROVIDED
                        Assume these dependencies don't exist and are already
                        provided (equivalent to ASSUME_PROVIDED). Useful to
                        make dependency graphs more appealing
  -l DEBUG_DOMAINS, --log-domains=DEBUG_DOMAINS
                        Show debug logging for the specified logging domains
  -P, --profile         Profile the command and save reports.
  -u UI, --ui=UI        The user interface to use (knotty, ncurses or teamcity
                        - default knotty).
  --token=XMLRPCTOKEN   Specify the connection token to be used when
                        connecting to a remote server.
  --revisions-changed   Set the exit code depending on whether upstream
                        floating revisions have changed or not.
  --server-only         Run bitbake without a UI, only starting a server
                        (cooker) process.
  -B BIND, --bind=BIND  The name/address for the bitbake xmlrpc server to bind
                        to.
  -T SERVER_TIMEOUT, --idle-timeout=SERVER_TIMEOUT
                        Set timeout to unload bitbake server due to
                        inactivity, set to -1 means no unload, default:
                        Environment variable BB_SERVER_TIMEOUT.
  --no-setscene         Do not run any setscene tasks. sstate will be ignored
                        and everything needed, built.
  --skip-setscene       Skip setscene tasks if they would be executed. Tasks
                        previously restored from sstate will be kept, unlike
                        --no-setscene
  --setscene-only       Only run setscene tasks, don't run any real tasks.
  --remote-server=REMOTE_SERVER
                        Connect to the specified server.
  -m, --kill-server     Terminate any running bitbake server.
  --observe-only        Connect to a server as an observing-only client.
  --status-only         Check the status of the remote bitbake server.
  -w WRITEEVENTLOG, --write-log=WRITEEVENTLOG
                        Writes the event log of the build to a bitbake event
                        json file. Use '' (empty string) to assign the name
                        automatically.
  --runall=RUNALL       Run the specified task for any recipe in the taskgraph
                        of the specified target (even if it wouldn't otherwise
                        have run).
  --runonly=RUNONLY     Run only the specified task within the taskgraph of
                        the specified targets (and any task dependencies those
                        tasks may have).

$ bitbake -c listtasks
Nothing to do. Use 'bitbake world' to build everything, or run 'bitbake --help' for usage information.

$ bitbake-layers show-recipes

[링크 : https://stackoverflow.com/questions/32850160/bitbake-how-to-list-all-recipe-and-append-files-used-in-an-image]

For an updated list for a specific recipe, run:

bitbake -c listtasks <recipe>

fetchall Fetch all source
build
devshell
package_write_ipk
cleansstate Clean the build/sstate-cache directory
configure
clean clean $WORKDIR
cleanall clean $WORKDIR and sstate-cache
populate_lic
package_write
populate_sysroot
buildall
populate_lic_setscene
patch
listtasks list all tasks that can be run for a target
compile
package_setscene
fetch
checkuri
package_write_ipk_setscene
package
unpack
install
populate_sysroot_setscene
checkuriall

[링크 : https://www.openembedded.org/wiki/List_of_Executable_tasks]

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Posted by 구차니

opengl glortho gluperspective

orthogonal(직교)

perspective(원근)

-1.0 ~ 1.0 사이로 정규화 해야 한다는데, 그래서 이전에 막 잘리고 난리였던 듯..

[링크 : https://www.scratchapixel.com/lessons/3d-basic-rendering/perspective-and-orthographic-projection-matrix/orthographic-projection-matrix.html]

[링크 : https://heinleinsgame.tistory.com/m/11]

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Posted by 구차니

Do not use Bitbake as root.

bitbake로 yocto를 빌드 하려고 하는데 에러가 나서 찾아보니

메시지 자체는 root로 bitbake 하지 말란건데, 설정상으로는 sanity를 inherit 하지 않도록 하면 되는 듯.

분별을(제정신을) 상속 안받으면 제정신이 아니게 되는건가...(!)

sanity 미국∙영국 [ˈsænəti] 영국식 1. [명사] 온전한 정신 (상태)
2. [명사] 분별 (→sane), (↔insanity)

# Sanity checks for common user misconfigurations
#
# See sanity.bbclass
#
# Expert users can confirm their sanity with "touch conf/sanity.conf"
BB_MIN_VERSION = "1.49.2"

SANITY_ABIFILE = "${TMPDIR}/abi_version"

SANITY_VERSION ?= "1"
LOCALCONF_VERSION ?= "1"
LAYER_CONF_VERSION ?= "7"
SITE_CONF_VERSION ?= "1"

#INHERIT += "sanity"

[링크 : http://./sources/poky/meta/conf/sanity.conf]

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Posted by 구차니

imx8 yocto

문서가 개정되어서 하기 쉽게 잘 나와있는 듯.

Rev. LF6.1.22_2.0.0 — 30 June 2023

The recommended minimum Ubuntu version is 20.04 or later.

$ sudo apt install gawk wget git diffstat unzip texinfo gcc build-essential chrpath socat cpio python3 python3-pip python3-pexpect xz-utils debianutils iputils-ping python3-git python3-jinja2 libegl1-mesa libsdl1.2-dev python3- subunit mesa-common-dev zstd liblz4-tool file locales

// lz4c 어쩌구 나오면
$ sudo apt install lz4

// repo 설치
$ mkdir ~/bin (this step may not be needed if the bin folder already exists)
$ curl https://storage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
$ chmod a+x ~/bin/repo

// repo 초기화
$ repo init -u https://github.com/nxp-imx/imx-manifest -b imx-linux-mickledore -m imx-6.1.22-2.0.0.xml
$ repo sync

$ DISTRO=<distro name> MACHINE=<machine name> source imx-setup-release.sh -b <build dir>

$ bitbake imx-image-multimedia

[링크 : https://www.nxp.com/docs/en/user-guide/IMX_YOCTO_PROJECT_USERS_GUIDE.pdf]

python 패키지 명이 바뀌어서 손을 대보는데 그래도 안되서

혹시나 하는 마음에 3.9를 설치해보니 정상적으로 설치안되었다고 -_-

$ bitbake -c compile -f weston
Traceback (most recent call last):
  File "/home/falinux/work/work/yocto/sources/poky/bitbake/bin/bitbake", line 19, in <module>
    import bb
  File "/home/falinux/work/work/yocto/sources/poky/bitbake/lib/bb/__init__.py", line 128, in <module>
    from bb import fetch2 as fetch
  File "/home/falinux/work/work/yocto/sources/poky/bitbake/lib/bb/fetch2/__init__.py", line 26, in <module>
    import bb.persist_data, bb.utils
  File "/home/falinux/work/work/yocto/sources/poky/bitbake/lib/bb/persist_data.py", line 22, in <module>
    from collections import Mapping
ImportError: cannot import name 'Mapping' from 'collections' (/usr/lib/python3.10/collections/__init__.py)

$ bitbake -c compile -f weston
WARNING: Host distribution "ubuntu-22.04" has not been validated with this version of the build system; you may possibly experience unexpected failures. It is recommended that you use a tested distribution.
ERROR:  OE-core's config sanity checker detected a potential misconfiguration.
    Either fix the cause of this error or at your own risk disable the checker (see sanity.conf).
    Following is the list of potential problems / advisories:

    Your Python 3 is not a full install. Please install the module distutils.sysconfig (see the Getting Started guide for further information).

Summary: There was 1 WARNING message shown.
Summary: There was 1 ERROR message shown, returning a non-zero exit code.

3.10 부터 패키지 명칭이 바뀌어서 그런일이 생기는 듯

For version 3.10 or above –

from collections.abc import MutableMapping
For version 3.9 or lower –

from collections import MutableMapping

[링크 : https://stackoverflow.com/questions/70943244/attributeerror-module-collections-has-no-attribute-mutablemapping]

+

걍 docker 쓸까..

[링크 :https://github.com/nxp-imx/imx-docker]

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Posted by 구차니

구차니의 잡동사니 모음

'잡동사니'에 해당되는 글 13031건

go packed struct

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슈퍼~~~문

'개소리 왈왈 > 사진과 수다' 카테고리의 다른 글

freecad 첫 드로잉

'프로그램 사용 > freecad' 카테고리의 다른 글

cortex-a53

'embeded > ARM' 카테고리의 다른 글

missed: not vectorized: relevant stmt not supported:

'embeded > i.mx 8m plus' 카테고리의 다른 글

시스템 audit 로그

'Linux' 카테고리의 다른 글

bitbake --help

'프로그램 사용 > yocto project' 카테고리의 다른 글

opengl glortho gluperspective

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Do not use Bitbake as root.

'프로그램 사용 > yocto project' 카테고리의 다른 글

imx8 yocto

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