netdev - [PATCH bpf v4 00/14] bpf/tests: Extend JIT test suite coverage

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Date:   Tue, 14 Sep 2021 11:18:28 +0200
From:   Johan Almbladh <johan.almbladh@...finetworks.com>
To:     ast@...nel.org, daniel@...earbox.net, andrii@...nel.org
Cc:     kafai@...com, songliubraving@...com, yhs@...com,
        john.fastabend@...il.com, kpsingh@...nel.org, iii@...ux.ibm.com,
        paul@...ium.io, yangtiezhu@...ngson.cn, netdev@...r.kernel.org,
        bpf@...r.kernel.org,
        Johan Almbladh <johan.almbladh@...finetworks.com>
Subject: [PATCH bpf v4 00/14] bpf/tests: Extend JIT test suite coverage

This patch set adds a number of new tests to the test_bpf.ko test suite.
It also corrects a faulty test case for tail call limits that failed
erronously on the x86-64 and i386 JITs. The tests are intended to verify
the correctness of eBPF JITs.

Changes since v3:
* New patch 13 to fix faulty test cases for tail call error paths (13/14).
* Fixed new tail call limit test accordingly (14/14).

Changes since v2:
* Fixed tail call test case to handle the case where a called function is
  outside the 32-bit range of the BPF immediate field. Such calls are
  now omitted in this test. (13/14)
* Fixed typo in commit message. (7/14)

Link: https://lore.kernel.org/bpf/20210909143303.811171-1-johan.almbladh@anyfinetworks.com/
Link: https://lore.kernel.org/bpf/20210907222339.4130924-1-johan.almbladh@anyfinetworks.com/
Link: https://lore.kernel.org/bpf/20210902185229.1840281-1-johan.almbladh@anyfinetworks.com/

Johan Almbladh (14):
  bpf/tests: Allow different number of runs per test case
  bpf/tests: Reduce memory footprint of test suite
  bpf/tests: Add exhaustive tests of ALU shift values
  bpf/tests: Add exhaustive tests of ALU operand magnitudes
  bpf/tests: Add exhaustive tests of JMP operand magnitudes
  bpf/tests: Add staggered JMP and JMP32 tests
  bpf/tests: Add exhaustive test of LD_IMM64 immediate magnitudes
  bpf/tests: Add test case flag for verifier zero-extension
  bpf/tests: Add JMP tests with small offsets
  bpf/tests: Add JMP tests with degenerate conditional
  bpf/tests: Expand branch conversion JIT test
  bpf/tests: Add more BPF_END byte order conversion tests
  bpf/tests: Fix error in tail call limit tests
  bpf/tests: Add tail call limit test with external function call

 lib/test_bpf.c | 3406 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 3345 insertions(+), 61 deletions(-)

-- 
2.30.2