summaryrefslogtreecommitdiff
path: root/tools/perf/scripts/python/stackcollapse.py
diff options
context:
space:
mode:
authorSong Liu <song@kernel.org>2025-03-28 22:31:24 +0300
committerAlexei Starovoitov <ast@kernel.org>2025-04-03 07:55:43 +0300
commit14d84357a0af7783a440d4a40794752ed20d2607 (patch)
tree426f8453a9175197faec021d67b372842d7f757f /tools/perf/scripts/python/stackcollapse.py
parent00387808d36e23c7d56e9e04a31de0be1443b0e9 (diff)
downloadlinux-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/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions