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a5d0c26a27
Similar to no-alu32 runner, if clang compiler supports -mcpu=v4, a cpuv4 runner is created to test bpf programs compiled with -mcpu=v4. The following are some num-of-insn statistics for each newer instructions based on existing selftests, excluding subsequent cpuv4 insn specific tests. insn pattern # of instructions reg = (s8)reg 4 reg = (s16)reg 4 reg = (s32)reg 144 reg = *(s8 *)(reg + off) 13 reg = *(s16 *)(reg + off) 14 reg = *(s32 *)(reg + off) 15215 reg = bswap16 reg 142 reg = bswap32 reg 38 reg = bswap64 reg 14 reg s/= reg 0 reg s%= reg 0 gotol <offset> 58 Note that in llvm -mcpu=v4 implementation, the compiler is a little bit conservative about generating 'gotol' insn (32-bit branch offset) as it didn't precise count the number of insns (e.g., some insns are debug insns, etc.). Compared to old 'goto' insn, newer 'gotol' insn should have comparable verification states to 'goto' insn. With current patch set, all selftests passed with -mcpu=v4 when running test_progs-cpuv4 binary. The -mcpu=v3 and -mcpu=v2 run are also successful. Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Link: https://lore.kernel.org/r/20230728011250.3718252-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
54 lines
737 B
Plaintext
54 lines
737 B
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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bpftool
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bpf-helpers*
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bpf-syscall*
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test_verifier
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test_maps
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test_lru_map
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test_lpm_map
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test_tag
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FEATURE-DUMP.libbpf
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fixdep
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test_dev_cgroup
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/test_progs
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/test_progs-no_alu32
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/test_progs-bpf_gcc
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/test_progs-cpuv4
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test_verifier_log
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feature
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test_sock
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test_sock_addr
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urandom_read
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test_sockmap
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test_lirc_mode2_user
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get_cgroup_id_user
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test_skb_cgroup_id_user
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test_cgroup_storage
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test_flow_dissector
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flow_dissector_load
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test_tcpnotify_user
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test_libbpf
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test_tcp_check_syncookie_user
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test_sysctl
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xdping
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test_cpp
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*.subskel.h
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*.skel.h
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*.lskel.h
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/no_alu32
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/bpf_gcc
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/cpuv4
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/host-tools
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/tools
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/runqslower
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/bench
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/veristat
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/sign-file
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*.ko
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*.tmp
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xskxceiver
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xdp_redirect_multi
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xdp_synproxy
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xdp_hw_metadata
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xdp_features
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