mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs.git
synced 2026-10-30 13:52:50 +01:00
Michael Vetter
62597edf63
The test proves that a function that is being kprobed and uses a post_handler cannot be livepatched. Only one ftrace_ops with FTRACE_OPS_FL_IPMODIFY set may be registered to any given function at a time. Note that the conflicting kprobe could not be created using the tracefs interface, see Documentation/trace/kprobetrace.rst. This interface uses only the pre_handler(), see alloc_trace_kprobe(). But FTRACE_OPS_FL_IPMODIFY is used only when the kprobe is using a post_handler, see arm_kprobe_ftrace(). Signed-off-by: Michael Vetter <[email protected]> Reviewed-by: Miroslav Benes <[email protected]> Reviewed-by: Joe Lawrence <[email protected]> Tested-by: Marcos Paulo de Souza <[email protected]> Reviewed-by: Marcos Paulo de Souza <[email protected]> Reviewed-by: Petr Mladek <[email protected]> Tested-by: Petr Mladek <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Petr Mladek <[email protected]>
19 lines
356 B
Makefile
19 lines
356 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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TEST_GEN_FILES := test_klp-call_getpid
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TEST_GEN_MODS_DIR := test_modules
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TEST_PROGS_EXTENDED := functions.sh
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TEST_PROGS := \
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test-livepatch.sh \
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test-callbacks.sh \
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test-shadow-vars.sh \
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test-state.sh \
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test-ftrace.sh \
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test-sysfs.sh \
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test-syscall.sh \
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test-kprobe.sh
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TEST_FILES := settings
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include ../lib.mk
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