https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207692
Bug ID: 207692
Summary: dev/lmc/if_lmc: module build error with bpf(4)
disabled (DEV_BPF)
Product: Base System
Version: 11.0-CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Many People
Priority: ---
Component: kern
Assignee: freebsd-bugs@FreeBSD.org
Reporter: ohart...@zedat.fu-berlin.de
If in kernel config file device bpf(4) is disabled for security reasons as
suggested by security(7):
# device bpf
the following error prevents from kernel being compiled successfully:
[...]
cc -c -O3 -pipe -fno-strict-aliasing -Werror -D_KERNEL -DKLD_MODULE -nostdinc
-DHAVE_KERNEL_OPTION_HEADERS -include
/empty/obj/ALG_amd64-CUR/empty/src/ALG/CURRENT/sys/ALG/opt_global.h -I.
-I/empty/src/ALG/CURRENT/sys -fno-omit-frame-pointer
-mno-omit-leaf-frame-pointer
-I/empty/obj/ALG_amd64-CUR/empty/src/ALG/CURRENT/sys/ALG -mcmodel=kernel
-mno-red-zone -mno-mmx -mno-sse -msoft-float -fno-asynchronous-unwind-tables
-ffreestanding -fwrapv -fstack-protector -Wall -Wredundant-decls
-Wnested-externs -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith
-Winline -Wcast-qual -Wundef -Wno-pointer-sign -D__printf__=__freebsd_kprintf__
-Wmissing-include-dirs -fdiagnostics-show-option -Wno-unknown-pragmas
-Wno-error-tautological-compare -Wno-error-empty-body
-Wno-error-parentheses-equality -Wno-error-unused-function
-Wno-error-pointer-sign -Wno-error-shift-negative-value -mno-aes -mno-avx
-std=iso9899:1999 /empty/src/ALG/CURRENT/sys/amd64/amd64/genassym.c
--- all_subdir_lmc ---
/empty/src/ALG/CURRENT/sys/modules/lmc/../../dev/lmc/if_lmc.c:131:6: error:
'DEV_BPF' is not defined, evaluates to 0 [-Werror,-Wundef]
# if NBPFILTER
^
/empty/src/ALG/CURRENT/sys/modules/lmc/../../dev/lmc/if_lmc.c:94:20: note:
expanded from macro 'NBPFILTER'
# define NBPFILTER DEV_BPF
^
In file included from
/empty/src/ALG/CURRENT/sys/modules/lmc/../../dev/lmc/if_lmc.c:135:
/empty/src/ALG/CURRENT/sys/dev/lmc/if_lmc.h:1156:7: error: 'DEV_BPF' is not
defined, evaluates to 0 [-Werror,-Wundef]
# if (NBPFILTER != 0)
^
/empty/src/ALG/CURRENT/sys/modules/lmc/../../dev/lmc/if_lmc.c:94:20: note:
expanded from macro 'NBPFILTER'
# define NBPFILTER DEV_BPF
^
In file included from
/empty/src/ALG/CURRENT/sys/modules/lmc/../../dev/lmc/if_lmc.c:135:
/empty/src/ALG/CURRENT/sys/dev/lmc/if_lmc.h:1166:6: error: 'DEV_BPF' is not
defined, evaluates to 0 [-Werror,-Wundef]
#if (NBPFILTER == 0)
--
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