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docs: need CONFIG_KPROBE_EVENTS for bpf features judging

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This commit is contained in:
mzz2017 2023-03-21 16:11:11 +08:00
parent 40bcbd6c9b
commit 948cfd3f7f
2 changed files with 3 additions and 2 deletions
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2
control/bpf_utils.go
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@ -214,7 +214,7 @@ retryLoadBpf:
} else if strings.Contains(err.Error(), "unknown func bpf_trace_printk") {
err = fmt.Errorf(`%w: please try to compile dae without bpf_printk; example of cross-compilation to arm64: make GOARCH=arm64 CGO_ENABLED=0 CFLAGS="-D__REMOVE_BPF_PRINTK"`, err)
} else if strings.Contains(err.Error(), "unknown func bpf_probe_read") {
err = fmt.Errorf(`%w: please re-compile linux kernel with CONFIG_BPF_EVENTS=y"`, err)
err = fmt.Errorf(`%w: please re-compile linux kernel with CONFIG_BPF_EVENTS=y and CONFIG_KPROBE_EVENTS=y"`, err)
}
return err
}

3
docs/getting-started/README.md
View File

@ -39,6 +39,7 @@ dae needs:
```
CONFIG_DEBUG_INFO_BTF=y
CONFIG_BPF_EVENTS=y
CONFIG_KPROBE_EVENTS=y
CONFIG_NET_CLS_ACT=y
CONFIG_NET_SCH_INGRESS=m
CONFIG_NET_INGRESS=y
@ -47,7 +48,7 @@ CONFIG_NET_EGRESS=y
Check them using command like:
```shell
(zcat /proc/config.gz || cat /boot/{config,config-$(uname -r)}) | grep -E 'CONFIG_(DEBUG_INFO_BTF|CONFIG_BPF_EVENTS|NET_CLS_ACT|NET_SCH_INGRESS|NET_INGRESS|NET_EGRESS)='
(zcat /proc/config.gz || cat /boot/{config,config-$(uname -r)}) | grep -E 'CONFIG_(DEBUG_INFO_BTF|BPF_EVENTS|KPROBE_EVENTS|NET_CLS_ACT|NET_SCH_INGRESS|NET_INGRESS|NET_EGRESS)='
```
> **Note**