From 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 2 Sep 2026 15:31:14 -0700 Subject: treewide: refresh kmalloc_obj() conversions This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook --- 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