bpftool: Allow explicitly skip llvm, libbfd and libcrypto dependencies#11389
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bpftool: Allow explicitly skip llvm, libbfd and libcrypto dependencies#11389kernel-patches-daemon-bpf[bot] wants to merge 1 commit intobpf-next_basefrom
kernel-patches-daemon-bpf[bot] wants to merge 1 commit intobpf-next_basefrom
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Introduce SKIP_LLVM, SKIP_LIBBFD, and SKIP_CRYPTO build flags that let users build bpftool without these optional dependencies. SKIP_LLVM=1 skips LLVM even when detected. SKIP_LIBBFD=1 prevents the libbfd JIT disassembly fallback when LLVM is absent. Together, they produce a bpftool with no disassembly support. SKIP_CRYPTO=1 excludes sign.c and removes the -lcrypto link dependency. Inline stubs in main.h return errors with a clear message if signing functions are called at runtime. Use BPFTOOL_WITHOUT_CRYPTO (not HAVE_LIBCRYPTO_SUPPORT) as the C define, following the BPFTOOL_WITHOUT_SKELETONS naming convention for bpftool-internal build config, leaving HAVE_LIBCRYPTO_SUPPORT free for proper feature detection in the future. All three flags are propagated through the selftests Makefile to bpftool sub-builds. Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
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Pull request for series with
subject: bpftool: Allow explicitly skip llvm, libbfd and libcrypto dependencies
version: 2
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=1065979