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Message-ID: <cover.1718092070.git.dvyukov@google.com>
Date: Tue, 11 Jun 2024 09:50:29 +0200
From: Dmitry Vyukov <dvyukov@...gle.com>
To: tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
dave.hansen@...ux.intel.com, x86@...nel.org
Cc: linux-kernel@...r.kernel.org, syzkaller@...glegroups.com, elver@...gle.com,
glider@...gle.com, nogikh@...gle.com, tarasmadan@...gle.com,
Dmitry Vyukov <dvyukov@...gle.com>
Subject: [PATCH v2 0/4] KCOV fixes
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 | 31 +++++++++++++++++++++++++++++++
kernel/module/Makefile | 2 +-
lib/Kconfig.debug | 8 ++++++++
6 files changed, 57 insertions(+), 6 deletions(-)
base-commit: 83a7eefedc9b56fe7bfeff13b6c7356688ffa670
--
2.45.2.505.gda0bf45e8d-goog
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