capable-bpfcc fails to launch due to bpf compilation error

[Ryan Lee]

$ sudo capable-bpfcc
[sudo] password for ryan-lee:
In file included from /virtual/main.c:14:
In file included from include/uapi/linux/ptrace.h:183:
In file included from arch/x86/include/asm/ptrace.h:175:
In file included from arch/x86/include/asm/paravirt_types.h:12:
In file included from arch/x86/include/asm/nospec-branch.h:15:
arch/x86/include/asm/current.h:47:10: warning: multiple identical address spaces specified for type [-Wduplicate-decl-specifier]
   47 | return this_cpu_read_const(const_pcpu_hot.current_task);
      | ^
arch/x86/include/asm/percpu.h:577:36: note: expanded from macro 'this_cpu_read_const'
  577 | #define this_cpu_read_const(pcp) __raw_cpu_read_const(pcp)
      | ^
arch/x86/include/asm/percpu.h:163:35: note: expanded from macro '__raw_cpu_read_const'
  163 | #define __raw_cpu_read_const(pcp) __raw_cpu_read(, , pcp)
      | ^
arch/x86/include/asm/percpu.h:155:30: note: expanded from macro '__raw_cpu_read'
  155 | *(qual __my_cpu_type(pcp) *)__my_cpu_ptr(&(pcp)); \
      | ^
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
arch/x86/include/asm/percpu.h:94:40: note: expanded from macro '__my_cpu_type'
   94 | #define __my_cpu_type(var) typeof(var) __percpu_seg_override
      | ^
arch/x86/include/asm/percpu.h:45:32: note: expanded from macro '__percpu_seg_override'
   45 | # define __percpu_seg_override __seg_gs
      | ^
<built-in>:358:33: note: expanded from macro '__seg_gs'
  358 | #define __seg_gs __attribute__((address_space(256)))
      | ^
In file included from /virtual/main.c:14:
In file included from include/uapi/linux/ptrace.h:183:
In file included from arch/x86/include/asm/ptrace.h:175:
In file included from arch/x86/include/asm/paravirt_types.h:12:
In file included from arch/x86/include/asm/nospec-branch.h:15:
arch/x86/include/asm/current.h:47:10: warning: multiple identical address spaces specified for type [-Wduplicate-decl-specifier]
arch/x86/include/asm/percpu.h:577:36: note: expanded from macro 'this_cpu_read_const'
  577 | #define this_cpu_read_const(pcp) __raw_cpu_read_const(pcp)
      | ^
arch/x86/include/asm/percpu.h:163:35: note: expanded from macro '__raw_cpu_read_const'
  163 | #define __raw_cpu_read_const(pcp) __raw_cpu_read(, , pcp)
      | ^
arch/x86/include/asm/percpu.h:155:9: note: expanded from macro '__raw_cpu_read'
  155 | *(qual __my_cpu_type(pcp) *)__my_cpu_ptr(&(pcp)); \
      | ^
arch/x86/include/asm/percpu.h:94:40: note: expanded from macro '__my_cpu_type'
   94 | #define __my_cpu_type(var) typeof(var) __percpu_seg_override
      | ^
arch/x86/include/asm/percpu.h:45:32: note: expanded from macro '__percpu_seg_override'
   45 | # define __percpu_seg_override __seg_gs
      | ^
<built-in>:358:33: note: expanded from macro '__seg_gs'
  358 | #define __seg_gs __attribute__((address_space(256)))
      | ^
In file included from /virtual/main.c:15:
In file included from include/linux/sched.h:13:
arch/x86/include/asm/processor.h:545:10: warning: multiple identical address spaces specified for type [-Wduplicate-decl-specifier]
  545 | return this_cpu_read_const(const_pcpu_hot.top_of_stack);
      | ^
arch/x86/include/asm/percpu.h:577:36: note: expanded from macro 'this_cpu_read_const'
  577 | #define this_cpu_read_const(pcp) __raw_cpu_read_const(pcp)
      | ^
arch/x86/include/asm/percpu.h:163:35: note: expanded from macro '__raw_cpu_read_const'
  163 | #define __raw_cpu_read_const(pcp) __raw_cpu_read(, , pcp)
      | ^
arch/x86/include/asm/percpu.h:155:30: note: expanded from macro '__raw_cpu_read'
  155 | *(qual __my_cpu_type(pcp) *)__my_cpu_ptr(&(pcp)); \
      | ^
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
arch/x86/include/asm/percpu.h:94:40: note: expanded from macro '__my_cpu_type'
   94 | #define __my_cpu_type(var) typeof(var) __percpu_seg_override
      | ^
arch/x86/include/asm/percpu.h:45:32: note: expanded from macro '__percpu_seg_override'
   45 | # define __percpu_seg_override __seg_gs
      | ^
<built-in>:358:33: note: expanded from macro '__seg_gs'
  358 | #define __seg_gs __attribute__((address_space(256)))
      | ^
In file included from /virtual/main.c:15:
In file included from include/linux/sched.h:13:
arch/x86/include/asm/processor.h:545:10: warning: multiple identical address spaces specified for type [-Wduplicate-decl-specifier]
arch/x86/include/asm/percpu.h:577:36: note: expanded from macro 'this_cpu_read_const'
  577 | #define this_cpu_read_const(pcp) __raw_cpu_read_const(pcp)
      | ^
arch/x86/include/asm/percpu.h:163:35: note: expanded from macro '__raw_cpu_read_const'
  163 | #define __raw_cpu_read_const(pcp) __raw_cpu_read(, , pcp)
      | ^
arch/x86/include/asm/percpu.h:155:9: note: expanded from macro '__raw_cpu_read'
  155 | *(qual __my_cpu_type(pcp) *)__my_cpu_ptr(&(pcp)); \
      | ^
arch/x86/include/asm/percpu.h:94:40: note: expanded from macro '__my_cpu_type'
   94 | #define __my_cpu_type(var) typeof(var) __percpu_seg_override
      | ^
arch/x86/include/asm/percpu.h:45:32: note: expanded from macro '__percpu_seg_override'
   45 | # define __percpu_seg_override __seg_gs
      | ^
<built-in>:358:33: note: expanded from macro '__seg_gs'
  358 | #define __seg_gs __attribute__((address_space(256)))
      | ^
In file included from /virtual/main.c:16:
In file included from include/linux/security.h:35:
include/linux/bpf.h:349:10: error: invalid application of 'sizeof' to an incomplete type 'struct bpf_wq'
  349 | return sizeof(struct bpf_wq);
      | ^ ~~~~~~~~~~~~~~~
include/linux/bpf.h:349:24: note: forward declaration of 'struct bpf_wq'
  349 | return sizeof(struct bpf_wq);
      | ^
include/linux/bpf.h:378:10: error: invalid application of '__alignof' to an incomplete type 'struct bpf_wq'
  378 | return __alignof__(struct bpf_wq);
      | ^ ~~~~~~~~~~~~~~~
include/linux/bpf.h:378:29: note: forward declaration of 'struct bpf_wq'
  378 | return __alignof__(struct bpf_wq);
      | ^
4 warnings and 2 errors generated.
Traceback (most recent call last):
  File "/usr/sbin/capable-bpfcc", line 250, in <module>
    b = BPF(text=bpf_text)
        ^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/bcc/__init__.py", line 479, in __init__
    raise Exception("Failed to compile BPF module %s" % (src_file or "<text>"))
Exception: Failed to compile BPF module <text>
$ uname -a
Linux ryan-lee-laptop-13-amd 6.11.0-25-generic #25~24.04.1-Ubuntu SMP PREEMPT_DYNAMIC Tue Apr 15 17:20:50 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: bpfcc-tools 0.29.1+ds-1ubuntu7
ProcVersionSignature: Ubuntu 6.11.0-25.25~24.04.1-generic 6.11.11
Uname: Linux 6.11.0-25-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Wed May 7 11:24:13 2025
InstallationDate: Installed on 2024-07-25 (286 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
PackageArchitecture: all
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: bpfcc
UpgradeStatus: No upgrade log present (probably fresh install)

[Ryan Lee (rlee287)]

Note: this affects linux-hwe-6.11 but not linux-generic (6.8).

[Edoardo Canepa (ecanepa)]

Not a kernel bug.

Fixed upstream in https://github.com/iovisor/bcc/commit/eb7cdd28a45e48d9318b0cb3f35d1bb6f01a6611

duplicate of https://bugs.launchpad.net/ubuntu/+source/bpfcc/+bug/2086183