From 2bd30b8dc75b823dd7bbef9d7bc68e1fd7ecee5c Mon Sep 17 00:00:00 2001 From: Sang-Heon Jeon Date: Mon, 24 Aug 2026 01:18:14 +0900 Subject: coccinelle: alloc_cast: drop removed allocators - pci_alloc_consistent() and pci_zalloc_consistent() were removed by commit 7968778914e5 ("PCI: Remove the deprecated "pci-dma-compat.h" API") - kmem_alloc() was removed by commit f078d4ea8276 ("xfs: convert kmem_alloc() to kmalloc()") - kmem_zalloc() was removed by commit 10634530f7ba ("xfs: convert kmem_zalloc() to kzalloc()") - kmem_zone_alloc() and kmem_zone_zalloc() were removed by commit bae633a4a283 ("xfs: remove xfs_zone_{alloc,zalloc} helpers") So drop them from the rules. No functional change. Signed-off-by: Sang-Heon Jeon Signed-off-by: Julia Lawall --- scripts/Makefile.kcsan | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 scripts/Makefile.kcsan (limited to 'scripts/Makefile.kcsan') diff --git a/scripts/Makefile.kcsan b/scripts/Makefile.kcsan new file mode 100644 index 000000000..19f693b68 --- /dev/null +++ b/scripts/Makefile.kcsan @@ -0,0 +1,26 @@ +# SPDX-License-Identifier: GPL-2.0 +# GCC and Clang accept backend options differently. Do not wrap in cc-option, +# because Clang accepts "--param" even if it is unused. +ifdef CONFIG_CC_IS_CLANG +cc-param = -mllvm -$(1) +else +cc-param = --param $(1) +endif + +# Keep most options here optional, to allow enabling more compilers if absence +# of some options does not break KCSAN nor causes false positive reports. +kcsan-cflags := -fsanitize=thread -fno-optimize-sibling-calls \ + $(call cc-option,$(call cc-param,tsan-compound-read-before-write=1),$(call cc-option,$(call cc-param,tsan-instrument-read-before-write=1))) \ + $(call cc-param,tsan-distinguish-volatile=1) + +ifdef CONFIG_CC_IS_GCC +# GCC started warning about operations unsupported by the TSan runtime. But +# KCSAN != TSan, so just ignore these warnings. +kcsan-cflags += -Wno-tsan +endif + +ifndef CONFIG_KCSAN_WEAK_MEMORY +kcsan-cflags += $(call cc-option,$(call cc-param,tsan-instrument-func-entry-exit=0)) +endif + +export CFLAGS_KCSAN := $(kcsan-cflags) -- cgit v1.3.1