Build error on NixOS

[TACIXAT]

I recognize this isn't a problem with the package, so feel free to close. However, any idea what would cause the following during the generate step?

Error: can't write /home/demo/bpf_with_go/app/src/gen_execve_bpfel.go: can't load BPF from ELF: load BTF maps: missing BTF

I've tried not stripping the binary, but get the same error.

Occurs here from bpf2go.

The .o file has a .maps section (Section 6). Seems to be missing a btf spec, but I don't know what that is.

$ eu-readelf -S src/gen_execve_bpfel.o
There are 21 section headers, starting at offset 0x10d8:

Section Headers:
[Nr] Name                 Type         Addr             Off      Size     ES Flags Lk Inf Al
[ 0]                      NULL         0000000000000000 00000000 00000000  0        0   0  0
[ 1] .strtab              STRTAB       0000000000000000 00000fdb 000000f7  0        0   0  1
[ 2] .text                PROGBITS     0000000000000000 00000040 00000000  0 AX     0   0  4
[ 3] tracepoint/syscalls/sys_enter_execve PROGBITS     0000000000000000 00000040 000000ac  0 AX     0   0 16
[ 4] .relatracepoint/syscalls/sys_enter_execve RELA         0000000000000000 000009f0 00000018 24       20   3  8
[ 5] .bss                 NOBITS       0000000000000000 000000ec 00000044  0 WA     0   0  4
[ 6] .maps                PROGBITS     0000000000000000 000000f0 00000018  0 WA     0   0  8
[ 7] .rodata.str1.1       PROGBITS     0000000000000000 00000108 0000000e  1 AMS    0   0  1
[ 8] license              PROGBITS     0000000000000000 00000116 00000004  0 WA     0   0  1
[ 9] .debug_str           PROGBITS     0000000000000000 0000011a 000001d7  1 MS     0   0  1
[10] .debug_loc           PROGBITS     0000000000000000 000002f1 00000059  0        0   0  1
[11] .debug_abbrev        PROGBITS     0000000000000000 0000034a 00000141  0        0   0  1
[12] .debug_info          PROGBITS     0000000000000000 0000048b 00000338  0        0   0  1
[13] .rela.debug_info     RELA         0000000000000000 00000a08 000005a0 24       20  12  8
[14] .note.GNU-stack      PROGBITS     0000000000000000 000007c3 00000000  0        0   0  1
[15] .eh_frame            X86_64_UNWIND 0000000000000000 000007c8 00000040  0 A      0   0  8
[16] .rela.eh_frame       RELA         0000000000000000 00000fa8 00000018 24       20  15  8
[17] .debug_line          PROGBITS     0000000000000000 00000808 000000dd  0        0   0  1
[18] .rela.debug_line     RELA         0000000000000000 00000fc0 00000018 24       20  17  8
[19] .llvm_addrsig        SHT_LOOS+fff4c03 0000000000000000 00000fd8 00000003  0 E     20   0  1
[20] .symtab              SYMTAB       0000000000000000 000008e8 00000108 24        1   7  8

The vmlinux.h generation worked.

Relevant packages I have installed -

   go_1_17
   clang_10
   bpftools
   libbpf
   gnumake

I feel like something is performing differently on NixOS but I'm not sure what.

Thanks for the work on this and the YT video!

[TACIXAT]

I'm still curious if you have any ideas but the Docker build worked flawlessly. So thank you for that :)