From aeb709c767aeca996e6011133e4f7bdb2a4af652 Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov Date: Wed, 30 Sep 2026 09:59:20 +0000 Subject: selftests/bpf: Add a test for objects stuck in free_by_rcu_ttrace Delete all elements of BPF_F_NO_PREALLOC hash map in one batch. The first free_bulk() starts RCU tasks trace GP and the rest of the elements are freed while it's in flight. Wait for call_rcu_ttrace_in_progress to clear in bpf_mem_cache of every cpu and check that free_by_rcu_ttrace and waiting_for_gp_ttrace lists are empty. Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20260930095920.601738-4-alexei.starovoitov@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi --- scripts/Makefile.kcov | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 scripts/Makefile.kcov (limited to 'scripts/Makefile.kcov') diff --git a/scripts/Makefile.kcov b/scripts/Makefile.kcov new file mode 100644 index 000000000..78305a84b --- /dev/null +++ b/scripts/Makefile.kcov @@ -0,0 +1,11 @@ +# SPDX-License-Identifier: GPL-2.0-only +kcov-flags-y += -fsanitize-coverage=trace-pc +kcov-flags-$(CONFIG_KCOV_ENABLE_COMPARISONS) += -fsanitize-coverage=trace-cmp + +kcov-rflags-y += -Cpasses=sancov-module +kcov-rflags-y += -Cllvm-args=-sanitizer-coverage-level=3 +kcov-rflags-y += -Cllvm-args=-sanitizer-coverage-trace-pc +kcov-rflags-$(CONFIG_KCOV_ENABLE_COMPARISONS) += -Cllvm-args=-sanitizer-coverage-trace-compares + +export CFLAGS_KCOV := $(kcov-flags-y) +export RUSTFLAGS_KCOV := $(kcov-rflags-y) -- cgit v1.3.1