Hello,
I have an issue to compile ebpf prog via xmake.
I have an issue to compile ebpf prog via xmake.
I have following map:
```c
struct
{
__uint(type, BPF_MAP_TYPE_RINGBUF);
__uint(max_entries, MAX_ENTRIES);
} ring_map SEC(".maps");
```
under v7.0.0 it works, under v7.1.0 and v7.2.0 getting an error:
"bpftool gen skeleton build/.gens/xxx/android/x86_64/release/rules/bpf/xxx.bpf.o -d -p"
```c
libbpf: map 'xxx': unsupported map linkage static.
{
"error": "failed to open BPF object file: Operation not supported"
}
```
---
Reproduce error:
---
On the system there is bpftool v7.0.0 installed:
```
bpftool v7.0.0
using libbpf v1.0
features: libbpf_strict, skeletons
```
Get libbpf-bootstrap repo
`git clone --recurse-submodules https://github.com/libbpf/libbpf-bootstrap`
try to compile for Android via xmake according to the readme file:
```
$ git submodule update --init --recursive # check out libbpf
$ cd examples/c
$ xmake f -p android
$ xmake
```
works.
---
Update the bpftool to v7.1.0 or v7.2.0
`git clone --depth 1 --branch v7.1.0 ... && make install`
`bpftool version`:
```
bpftool v7.1.0
using libbpf v1.1
features: llvm, skeletons
```
try again to compile via xmake:
```
[ 13%]: compiling.bpf uprobe.bpf.c
[ 13%]: compiling.bpf minimal.bpf.c
[ 13%]: compiling.bpf fentry.bpf.c
[ 13%]: compiling.bpf minimal_legacy.bpf.c
[ 17%]: cache compiling.release ../../libbpf/src/libbpf.c
[ 33%]: cache compiling.release ../../libbpf/src/netlink.c
[ 44%]: cache compiling.release ../../libbpf/src/bpf.c
[ 44%]: compiling.bpf bootstrap.bpf.c
libbpf: map 'my_pid_map': unsupported map linkage static.
Error: failed to open BPF object file: Operation not supported
error:
execv(bpftool gen skeleton
build/.gens/minimal_legacy/android/armeabi-v7a/release/rules/bpf/minimal_legacy.bpf.o)
failed(161)
```
failed.
Seems like its for all .maps not only ringbuf.
---
Same for `v.7.2.0`
I created ticket as well on GitHub: https://github.com/libbpf/libbpf/issues/720
Seems like it's a bug
Regads,
Grubeli
I created ticket as well on GitHub: https://github.com/libbpf/libbpf/issues/720
Seems like it's a bug
Regads,
Grubeli
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