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authorSamuel Holland <samuel.holland@sifive.com>2024-07-31 20:36:59 -0700
committerPalmer Dabbelt <palmer@rivosinc.com>2024-09-19 01:10:00 -0700
commit58ff537109ac863d4ec83baf8413b17dcc10101c (patch)
tree9bd118c81ca4582e270c84a880b298c195e35b1e /arch/riscv/purgatory/Makefile
parent8400291e289ee6b2bf9779ff1c83a291501f017b (diff)
riscv: Omit optimized string routines when using KASAN
The optimized string routines are implemented in assembly, so they are not instrumented for use with KASAN. Fall back to the C version of the routines in order to improve KASAN coverage. This fixes the kasan_strings() unit test. Signed-off-by: Samuel Holland <samuel.holland@sifive.com> Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com> Tested-by: Alexandre Ghiti <alexghiti@rivosinc.com> Link: https://lore.kernel.org/r/20240801033725.28816-2-samuel.holland@sifive.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/purgatory/Makefile')
-rw-r--r--arch/riscv/purgatory/Makefile2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/riscv/purgatory/Makefile b/arch/riscv/purgatory/Makefile
index f11945ee2490..fb9c917c9b45 100644
--- a/arch/riscv/purgatory/Makefile
+++ b/arch/riscv/purgatory/Makefile
@@ -1,7 +1,9 @@
# SPDX-License-Identifier: GPL-2.0
purgatory-y := purgatory.o sha256.o entry.o string.o ctype.o memcpy.o memset.o
+ifeq ($(CONFIG_KASAN_GENERIC)$(CONFIG_KASAN_SW_TAGS),)
purgatory-y += strcmp.o strlen.o strncmp.o
+endif
targets += $(purgatory-y)
PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y))