kernel/bpf-developer-tutorial
1
0
Fork 0
mirror of https://github.com/eunomia-bpf/bpf-developer-tutorial.git synced 2026-10-30 12:15:40 +08:00
Code Issues Packages Projects Releases Wiki Activity

fix: Update links in README files for kprobe examples and clarify base program descriptions

Browse Source
This commit is contained in:
LinuxDev9002
2026-03-06 14:47:38 -08:00
parent d06ec2f281
commit f5564cfa77
5 changed files with 6 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
src/38-btf-uprobe/test-verify/README.md
View File

@@ -22,10 +22,10 @@ By reusing the kernel verifier, we can provide:
The BTF format is a binary format that contains the type information of the progam.
The based program can be found in the [examples](../examples) directory, they represent the different version of host userspace applications, include:
The base programs live in the tutorial source tree under [src/38-btf-uprobe/examples](https://github.com/eunomia-bpf/bpf-developer-tutorial/tree/main/src/38-btf-uprobe/examples). They represent different versions of the host userspace application and include:
- `btf-base`: the base version of `btf-base-complete`, which contain the type information of `struct data` the same as [verify-failed-no-btf/uprobe.bpf.c](verify-failed-no-btf/uprobe.bpf.c).
- `btf-base-new`: the new version of `btf-base`, which contains the type information of `struct data` different from `btf-base` and [verify-failed-btf/uprobe.bpf.c](verify-failed-btf/uprobe.bpf.c). We can use it to test CO-RE relocation.
- `btf-base-new`: the new version of `btf-base`, which contains the type information of `struct data` different from `btf-base` and [verify-failed-no-btf/uprobe_failed.bpf.c](verify-failed-no-btf/uprobe_failed.bpf.c). We can use it to test CO-RE relocation.
- `btf-base-complete`: the complete version of `btf-base`, which contains all the types that are used in the eBPF program, and a resource allocation and deallocation function.
run `make -C ../` in this directory to generate the BTF files.
@@ -153,7 +153,7 @@ If the extension (BPF program) access the invalid userspace struct variable, the
## Verify memory pointer access
See [verify-memory-access](verify-memory-access) directory.
See the `verify-memory-access/` sources in the tutorial tree for the full example.
The data struct is:
@@ -275,7 +275,7 @@ Failed to load and verify BPF skeleton
## Verify resource allocation and deallocation with psudo ufuncs
See [verify-resource-allocation](verify-resource-allocation) directory.
See the `verify-resource-allocation/` sources in the tutorial tree for the full example.
First, give kernel the psudo ufunc information through the kernel module:
@@ -448,4 +448,3 @@ And run the userspace program:
my_alloc_data
my_free_data
```