Fix spurious KCOV coverage from interrupts and add a test.
Ignore some additional files that lead to large amounts
of uninteresting coverage.
As a reference point, tracing a simple open system call
produces ~10K PCs with these changes instead of ~45K PCs.
Dmitry Vyukov (4):
x86/entry: Remove unwanted instrumentation in common_interrupt()
kcov: add interrupt handling self test
module: Fix KCOV-ignored file name
x86: Ignore stack unwinding in KCOV
arch/x86/include/asm/hardirq.h | 8 ++++++--
arch/x86/include/asm/idtentry.h | 6 +++---
arch/x86/kernel/Makefile | 8 ++++++++
kernel/kcov.c | 28 ++++++++++++++++++++++++++++
kernel/module/Makefile | 2 +-
lib/Kconfig.debug | 8 ++++++++
6 files changed, 54 insertions(+), 6 deletions(-)
base-commit: 2ab79514109578fc4b6df90633d500cf281eb689
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2.45.1.467.gbab1589fc0-goog