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OpenCloudOS-Kernel/arch/powerpc/perf
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Daniel Axtens b112fb913b powerpc: make stack walking KASAN-safe 
Make our stack-walking code KASAN-safe by using __no_sanitize_address.
Generic code, arm64, s390 and x86 all make accesses unchecked for similar
sorts of reasons: when unwinding a stack, we might touch memory that KASAN
has marked as being out-of-bounds. In ppc64 KASAN development, I hit this
sometimes when checking for an exception frame - because we're checking
an arbitrary offset into the stack frame.

See commit 2095574632 ("s390/kasan: avoid false positives during stack
unwind"), commit bcaf669b4b ("arm64: disable kasan when accessing
frame->fp in unwind_frame"), commit 91e08ab0c8 ("x86/dumpstack:
Prevent KASAN false positive warnings") and commit 6e22c83664
("tracing, kasan: Silence Kasan warning in check_stack of stack_tracer").

Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210614120907.1952321-1-dja@axtens.net
 		2021-06-17 00:09:11 +10:00
..
req-gen powerpc: clean the inclusion of stringify.h 2018-07-30 22:48:17 +10:00
8xx-pmu.c powerpc/ppc-opcode: Add PPC_RAW_MFSPR() 2020-12-09 23:48:13 +11:00
Makefile powerpc/perf: Simplify Makefile 2021-06-15 17:12:27 +10:00
bhrb.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
callchain.c powerpc: make stack walking KASAN-safe 2021-06-17 00:09:11 +10:00
callchain.h powerpc/64s/perf: perf interrupt does not have to get_user_pages to access user memory 2020-11-19 16:56:52 +11:00
callchain_32.c powerpc/vdso: Retrieve sigtramp offsets at buildtime 2020-12-04 01:01:17 +11:00
callchain_64.c powerpc/vdso: Retrieve sigtramp offsets at buildtime 2020-12-04 01:01:17 +11:00
core-book3s.c powerpc: Don't use 'struct ppc_inst' to reference instruction location 2021-06-17 00:09:00 +10:00
core-fsl-emb.c powerpc/perf: move perf irq/nmi handling details into traps.c 2021-02-09 00:02:10 +11:00
e500-pmu.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
e6500-pmu.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
generic-compat-pmu.c powerpc/perf: Update Power PMU cache_events to u64 type 2020-07-22 21:56:40 +10:00
hv-24x7-catalog.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hv-24x7-domains.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hv-24x7.c powerpc/perf/hv-24x7: Make some symbols static 2021-04-14 23:04:17 +10:00
hv-24x7.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hv-common.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hv-common.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hv-gpci-requests.h powerpc/perf/hv-gpci: Fix starting index value 2020-10-07 22:34:48 +11:00
hv-gpci.c powerpc/hv-gpci: Add sysfs files inside hv-gpci device to show cpumask 2020-10-07 22:34:49 +11:00
hv-gpci.h powerpc/perf: consolidate GPCI hcall structs into asm/hvcall.h 2020-09-02 11:00:20 +10:00
imc-pmu.c powerpc: fix -Wimplicit-fallthrough 2020-11-18 14:18:09 -06:00
internal.h powerpc/perf: power10 Performance Monitoring support 2020-07-22 21:56:41 +10:00
isa207-common.c powerpc/perf: Fix sampled instruction type for larx/stcx 2021-04-23 01:38:02 +10:00
isa207-common.h powerpc/perf: Fix sampled instruction type for larx/stcx 2021-04-23 01:38:02 +10:00
mpc7450-pmu.c powerpc/perf: Adds support for programming of Thresholding in P10 2021-02-11 23:35:36 +11:00
perf_regs.c powerpc/perf: Expose Performance Monitor Counter SPR's as part of extended regs 2021-02-09 01:09:44 +11:00
power5+-pmu.c powerpc/perf: Adds support for programming of Thresholding in P10 2021-02-11 23:35:36 +11:00
power5-pmu.c powerpc/perf: Adds support for programming of Thresholding in P10 2021-02-11 23:35:36 +11:00
power6-pmu.c powerpc/perf: Adds support for programming of Thresholding in P10 2021-02-11 23:35:36 +11:00
power7-events-list.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
power7-pmu.c powerpc/perf: Adds support for programming of Thresholding in P10 2021-02-11 23:35:36 +11:00
power8-events-list.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
power8-pmu.c powerpc/perf: Update Power PMU cache_events to u64 type 2020-07-22 21:56:40 +10:00
power9-events-list.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
power9-pmu.c powerpc/perf: Add platform specific check_attr_config 2021-04-19 12:22:09 +10:00
power10-events-list.h powerpc/perf: Fix the threshold event selection for memory events in power10 2021-04-23 01:38:02 +10:00
power10-pmu.c powerpc/perf: Add platform specific check_attr_config 2021-04-19 12:22:09 +10:00
ppc970-pmu.c powerpc/perf: Adds support for programming of Thresholding in P10 2021-02-11 23:35:36 +11:00