Messages in this thread Patch in this message | | | From | Paul Walmsley <> | Subject | [PATCH 4/8] riscv: ensure RISC-V C model definitions are passed to static analyzers | Date | Thu, 17 Oct 2019 17:49:25 -0700 |
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Static analysis tools such as sparse don't set the RISC-V C model preprocessor directives such as "__riscv_cmodel_medany", set by the C compilers. This causes the static analyzers to evaluate different preprocessor paths than C compilers would. Fix this by defining the appropriate C model macros in the static analyzer command lines.
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com> --- arch/riscv/Makefile | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile index f5e914210245..0247a90bd4d8 100644 --- a/arch/riscv/Makefile +++ b/arch/riscv/Makefile @@ -47,9 +47,11 @@ KBUILD_CFLAGS += -DCONFIG_PAGE_OFFSET=$(CONFIG_PAGE_OFFSET) ifeq ($(CONFIG_CMODEL_MEDLOW),y) KBUILD_CFLAGS += -mcmodel=medlow + CHECKFLAGS += -D__riscv_cmodel_medlow endif ifeq ($(CONFIG_CMODEL_MEDANY),y) KBUILD_CFLAGS += -mcmodel=medany + CHECKFLAGS += -D__riscv_cmodel_medany endif ifeq ($(CONFIG_MODULE_SECTIONS),y) KBUILD_LDS_MODULE += $(srctree)/arch/riscv/kernel/module.lds -- 2.23.0
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