Initial try for .eh_frame/.debug_frame based stack unwinding using eBPF #346
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I have re-created the previous #150 PR by squashing the previous commits. To make the rebase easier and cleaner. I'll extract certain features from this before rebasing. |
kakkoyun
commented
Apr 13, 2022
pkg/agent/profile.go
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| p.loopReport(t, err) | ||
| } | ||
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| func (p *CgroupProfiler) profileLoop(ctx context.Context, now time.Time, counts, stackTraces *bpf.BPFMap) error { | ||
| func (p *CgroupProfiler) initAndLoadBPFModule() (*bpf.Module, error) { | ||
| btfSupported, err := p.isBTFSupported() |
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@kakkoyun Separate as another PR
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Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> Split simple cpu profiling and cpu profiling with unwinding Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> Fix communication issues with kernel space Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> Send eh_frame of all mappings Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> Add debug prints back Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> Remove build id flag Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com> Use fork of delve, rather than vendoring a single package Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>
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Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>
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Superseded by #600 |
kakkoyun
commented
Jul 26, 2022
| u64 res = 0; | ||
| switch (ins->op) { | ||
| case 1: // OpUndefined: Undefined register. | ||
| if (bpf_probe_read(&addr, 8, &unsafe_ptr) == 0) |
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Signed-off-by: Kemal Akkoyun kakkoyun@gmail.com
blocked by xref: aquasecurity/libbpfgo#93
Fixes #293
Implement BPF map of maps after we have the support in libbpf-go:Utilize New CreateMap API implementing bpf_map_create, Type/name accessors aquasecurity/libbpfgo#138