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author | Song Liu <song@kernel.org> | 2025-03-28 22:31:24 +0300 |
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committer | Alexei Starovoitov <ast@kernel.org> | 2025-04-03 07:55:43 +0300 |
commit | 14d84357a0af7783a440d4a40794752ed20d2607 (patch) | |
tree | 426f8453a9175197faec021d67b372842d7f757f /tools/perf/scripts/python/export-to-sqlite.py | |
parent | 00387808d36e23c7d56e9e04a31de0be1443b0e9 (diff) | |
download | linux-14d84357a0af7783a440d4a40794752ed20d2607.tar.xz |
selftests/bpf: Fix verifier_bpf_fastcall test
Commit [1] moves percpu data on x86 from address 0x000... to address
0xfff...
Before [1]:
159020: 0000000000030700 0 OBJECT GLOBAL DEFAULT 23 pcpu_hot
After [1]:
152602: ffffffff83a3e034 4 OBJECT GLOBAL DEFAULT 35 pcpu_hot
As a result, verifier_bpf_fastcall tests should now expect a negative
value for pcpu_hot, IOW, the disassemble should show "r=" instead of
"w=".
Fix this in the test.
Note that, a later change created a new variable "cpu_number" for
bpf_get_smp_processor_id() [2]. The inlining logic is updated properly
as part of this change, so there is no need to fix anything on the
kernel side.
[1] commit 9d7de2aa8b41 ("x86/percpu/64: Use relative percpu offsets")
[2] commit 01c7bc5198e9 ("x86/smp: Move cpu number to percpu hot section")
Reported-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20250328193124.808784-1-song@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions