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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 17:05:56 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-09-04 18:17:30 -0700 |
| commit | 506ada89629ec7059b96ecfb0dc7d33ece0103ca (patch) | |
| tree | 0b07297409b68d2333fb4f0eae7f3b072eb68d4c /scripts/Makefile | |
| download | linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.tar.gz linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.zip | |
bpf: mark a NULL kfunc argument precisegrafted
check_kfunc_arg() allows bpf_register_is_null() for nullable arguments
w/o marking the underlying scalar register precise. Hence a checkpoint
created on such a path would prune against arbitrary scalar value.
Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)")
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'scripts/Makefile')
| -rw-r--r-- | scripts/Makefile | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/scripts/Makefile b/scripts/Makefile new file mode 100644 index 000000000..3434a82a1 --- /dev/null +++ b/scripts/Makefile @@ -0,0 +1,69 @@ +# SPDX-License-Identifier: GPL-2.0 +### +# scripts contains sources for various helper programs used throughout +# the kernel for the build process. + +hostprogs-always-$(CONFIG_KALLSYMS) += kallsyms +hostprogs-always-$(BUILD_C_RECORDMCOUNT) += recordmcount +hostprogs-always-$(CONFIG_BUILDTIME_TABLE_SORT) += sorttable +hostprogs-always-$(CONFIG_ASN1) += asn1_compiler +hostprogs-always-$(CONFIG_MODULE_SIG_FORMAT) += sign-file +hostprogs-always-$(CONFIG_SYSTEM_EXTRA_CERTIFICATE) += insert-sys-cert +hostprogs-always-$(CONFIG_RUST_KERNEL_DOCTESTS) += rustdoc_test_builder +hostprogs-always-$(CONFIG_RUST_KERNEL_DOCTESTS) += rustdoc_test_gen +hostprogs-always-$(CONFIG_TRACEPOINTS) += tracepoint-update + +sorttable-objs := sorttable.o elf-parse.o +tracepoint-update-objs := tracepoint-update.o elf-parse.o + +ifneq ($(or $(CONFIG_X86_64),$(CONFIG_X86_32)),) +always-$(CONFIG_RUST) += target.json +filechk_rust_target = $< < include/config/auto.conf + +$(obj)/target.json: scripts/generate_rust_target include/config/auto.conf FORCE + $(call filechk,rust_target) +endif + +hostprogs += generate_rust_target +generate_rust_target-rust := y +rustdoc_test_builder-rust := y +rustdoc_test_gen-rust := y + +HOSTCFLAGS_tracepoint-update.o = -I$(srctree)/tools/include +HOSTCFLAGS_elf-parse.o = -I$(srctree)/tools/include +HOSTCFLAGS_sorttable.o = -I$(srctree)/tools/include +HOSTLDLIBS_sorttable = -lpthread +HOSTCFLAGS_asn1_compiler.o = -I$(srctree)/include +HOSTCFLAGS_sign-file.o = $(shell $(HOSTPKG_CONFIG) --cflags libcrypto 2> /dev/null) +HOSTCFLAGS_sign-file.o += -I$(srctree)/tools/include/uapi/ +HOSTLDLIBS_sign-file = $(shell $(HOSTPKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto) + +ifdef CONFIG_UNWINDER_ORC +ifeq ($(ARCH),x86_64) +SRCARCH := x86 +endif +ifeq ($(ARCH),loongarch) +SRCARCH := loongarch +endif +HOSTCFLAGS_sorttable.o += -I$(srctree)/tools/arch/$(SRCARCH)/include +HOSTCFLAGS_sorttable.o += -DUNWINDER_ORC_ENABLED +endif + +ifdef CONFIG_BUILDTIME_MCOUNT_SORT +HOSTCFLAGS_sorttable.o += -DMCOUNT_SORT_ENABLED +endif + +# The following programs are only built on demand +hostprogs += unifdef gen_packed_field_checks + +# The module linker script is preprocessed on demand +targets += module.lds + +subdir-$(CONFIG_GCC_PLUGINS) += gcc-plugins +subdir-$(CONFIG_GENKSYMS) += genksyms +subdir-$(CONFIG_GENDWARFKSYMS) += gendwarfksyms +subdir-$(CONFIG_SECURITY_SELINUX) += selinux +subdir-$(CONFIG_SECURITY_IPE) += ipe + +# Let clean descend into subdirs +subdir- += basic dtc gdb kconfig mod |