Bug 7863 - [Anolis23.1][ANCK-5.10-016.2][RC1]perf test测试项PE file support：FAIL
Summary: [Anolis23.1][ANCK-5.10-016.2][RC1]perf test测试项PE file support：FAIL
Status: IN_PROGRESS
Alias: None
Product: Anolis OS 23
Classification: Anolis OS
Component: BaseOS Packages (show other bugs) BaseOS Packages
Version: 23.1
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: rc
Assignee: gaochang
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Reported: 2024-01-10 17:24 UTC by Banana
Modified: 2024-04-29 15:06 UTC (History)
5 users (show)

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Description Banana alibaba_cloud_group 2024-01-10 17:24:11 UTC 
[问题描述]：
perf test测试项PE file support：FAIL
[root@iZbp13qjxld7i2hqvemwgiZ yum.repos.d]# perf test -v 68
68: PE file support                                                 :
--- start ---
test child forked, pid 19981
FAILED tests/pe-file-parsing.c:40 Failed to read build_id
test child finished with -1
---- end ----
PE file support: FAILED!

[环境信息]：
机器类型：ECS

[perf version]
[root@iZbp13qjxld7i2hqvemwgiZ ~]# perf --version
perf version 5.10.134-16.2_rc1.an23.aarch64

[内核信息]：
[root@iZbp13qjxld7i2hqvemwgiZ yum.repos.d]# uname -r
5.10.134-16.2_rc1.an23.aarch64

[操作系统信息]：
[root@iZbp13qjxld7i2hqvemwgiZ yum.repos.d]# cat /etc/os-release
NAME="Anolis OS"
VERSION="23"
ID="anolis"
VERSION_ID="23"
PLATFORM_ID="platform:an23"
PRETTY_NAME="Anolis OS 23"
ANSI_COLOR="0;31"
HOME_URL="https://openanolis.cn/"
BUG_REPORT_URL="https://bugzilla.openanolis.cn/"


[问题发生概率]：
必现

[复现步骤]：
1、安装执行版本的perf版本
2、执行对应编号的case，此处的68是当前perf版本的PE file support测试项
    perf test -v 68
Comment 1 yunmeng365524 2024-01-12 14:38:12 UTC 
016.1 是OK的
[root@iZbp109lataf58vl8qfvsrZ ~]# perf --version
perf version 5.10.134-16.1.an8.x86_64
[root@iZbp109lataf58vl8qfvsrZ ~]# perf test -v 68
68: PE file support                                                 :
--- start ---
test child forked, pid 42260
test child finished with 0
---- end ----
PE file support: Ok
Comment 2 maqiao alibaba_cloud_group 2024-01-18 11:26:51 UTC 
[root@iZbp13qjxld7i2hqvemwgiZ shell]# perf test -vvv 68
68: PE file support                                                 :
--- start ---
test child forked, pid 799625
filename__read_build_id: cannot read /usr/libexec/perf-core/tests/pe-file.exe bfd file.
FAILED tests/pe-file-parsing.c:40 Failed to read build_id
test child finished with -1
---- end ----
PE file support: FAILED!
[root@iZbp13qjxld7i2hqvemwgiZ shell]# perf -v
perf version 5.10.134-16.1.an23.aarch64

同一台机器上，将perf降级到16.1以后，依然会有同样的问题。
看日志，应该是libbfd库有什么问题。
Comment 3 zhangjinglin loongson_group 2024-01-25 10:41:38 UTC 
[perf version]
[root@anolis ~]# perf --version
perf version 5.10.134-16.2_rc1.an23.loongarch64

[内核信息]：
[root@anolis ~]# uname -a
Linux anolis 5.10.134-16.2_rc1.an23.loongarch64 #1 SMP Tue Jan 2 09:58:44 CST 2024 loongarch64 loongarch64 loongarch64 GNU/Linux

[操作系统信息]：
[root@anolis ~]# cat /etc/os-release 
NAME="Anolis OS"
VERSION="23"
ID="anolis"
VERSION_ID="23"
PLATFORM_ID="platform:an23"
PRETTY_NAME="Anolis OS 23"
ANSI_COLOR="0;31"
HOME_URL="https://openanolis.cn/"
BUG_REPORT_URL="https://bugzilla.openanolis.cn/"

[问题]：必现
[root@anolis ~]# perf test -v 68
68: PE file support                                                 :
--- start ---
test child forked, pid 9446
FAILED tests/pe-file-parsing.c:40 Failed to read build_id
test child finished with -1
---- end ----
PE file support: FAILED!
Comment 4 zhangjing alibaba_cloud_group 2024-01-25 20:12:27 UTC 
原因定位：
在这台机器上的环境无法解析内核源码文件tools/perf/tests/pe-file.exe的文件格式信息。

在倚天物理机和测试ECS环境中clone同一份内核源码，分别获取pe-file.exe文件信息:

在倚天物理机上（alinux3环境）：
$objdump -x tools/perf/tests/pe-file.exe | head -6

tools/perf/tests/pe-file.exe：     文件格式 pei-x86-64
tools/perf/tests/pe-file.exe
体系结构：i386:x86-64，标志 0x0000013a：
EXEC_P, HAS_DEBUG, HAS_SYMS, HAS_LOCALS, D_PAGED
起始地址 0x00000000004014f0


在ECS测试机上（anolis23环境）：
[root@iZbp13qjxld7i2hqvemwgiZ perf]# objdump -x tests/pe-file.exe
objdump: tests/pe-file.exe: file format not recognized
Comment 5 zhangjing alibaba_cloud_group 2024-01-25 21:02:47 UTC 
当前环境的binutils版本：
[root@iZbp13qjxld7i2hqvemwgiZ perf]# rpm -qa | grep binutils
binutils-gold-2.40-3.an23.aarch64
binutils-2.40-3.an23.aarch64
binutils-devel-2.40-3.an23.aarch64

用源码编译perf, 测试失败:
[root@iZbp13qjxld7i2hqvemwgiZ perf]# ./perf test -v 68
68: PE file support                                                 :
--- start ---
test child forked, pid 1652066
filename:./tests/pe-file.exe
FAILED tests/pe-file-parsing.c:40 Failed to read build_id
test child finished with -1
---- end ----
PE file support: FAILED!


降级binutils版本：
[root@iZbp13qjxld7i2hqvemwgiZ perf]# rpm -qa | grep binutils
binutils-gold-2.39-1.an23.aarch64
binutils-2.39-1.an23.aarch64
binutils-devel-2.39-1.an23.aarch64

重新编译perf，测试成功:
[root@iZbp13qjxld7i2hqvemwgiZ perf]# ./perf test -v 68
68: PE file support                                                 :
--- start ---
test child forked, pid 1640114
filename:./tests/pe-file.exe
test child finished with 0
---- end ----
PE file support: Ok


初步结论：binutils版本过高导致objdump/nm等无法解析pe-file.exe文件格式。而降级成2.39-1后可以测试成功。
Comment 6 zhangjing alibaba_cloud_group 2024-01-25 21:11:09 UTC 
该perf test测试项会执行bfd_check_format函数去检查perf源码中的pe-file.exe文件格式，

在2.40-3 的binutils版本中，bfd_check_format函数返回失败，导致测试failed。
在2.39-1 的binutils版本中，bfd_check_format函数返回成功。

需要check binutils软件包。
Comment 7 gaochang alibaba_cloud_group 2024-04-29 15:06:54 UTC 
Nightly 中已更新 2.41 版本，请尝试 2.41 是否能够满足要求