diff options
Diffstat (limited to 'arch/s390/purgatory')
| -rw-r--r-- | arch/s390/purgatory/.gitignore | 1 | ||||
| -rw-r--r-- | arch/s390/purgatory/Makefile | 23 | ||||
| -rw-r--r-- | arch/s390/purgatory/purgatory.c | 2 | ||||
| -rw-r--r-- | arch/s390/purgatory/string.c | 3 |
4 files changed, 22 insertions, 7 deletions
diff --git a/arch/s390/purgatory/.gitignore b/arch/s390/purgatory/.gitignore index 04a03433c720..c82157f46b18 100644 --- a/arch/s390/purgatory/.gitignore +++ b/arch/s390/purgatory/.gitignore @@ -1,3 +1,4 @@ purgatory +purgatory.chk purgatory.lds purgatory.ro diff --git a/arch/s390/purgatory/Makefile b/arch/s390/purgatory/Makefile index dc1ae4ff79d7..c57f8c40e992 100644 --- a/arch/s390/purgatory/Makefile +++ b/arch/s390/purgatory/Makefile @@ -4,17 +4,21 @@ OBJECT_FILES_NON_STANDARD := y purgatory-y := head.o purgatory.o string.o sha256.o mem.o -targets += $(purgatory-y) purgatory.lds purgatory purgatory.ro +targets += $(purgatory-y) purgatory.lds purgatory purgatory.chk purgatory.ro PURGATORY_OBJS = $(addprefix $(obj)/,$(purgatory-y)) -$(obj)/sha256.o: $(srctree)/lib/sha256.c FORCE +$(obj)/sha256.o: $(srctree)/lib/crypto/sha256.c FORCE $(call if_changed_rule,cc_o_c) +CFLAGS_sha256.o := -D__DISABLE_EXPORTS + $(obj)/mem.o: $(srctree)/arch/s390/lib/mem.S FORCE $(call if_changed_rule,as_o_S) -$(obj)/string.o: $(srctree)/arch/s390/lib/string.c FORCE - $(call if_changed_rule,cc_o_c) +KCOV_INSTRUMENT := n +GCOV_PROFILE := n +UBSAN_SANITIZE := n +KASAN_SANITIZE := n KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare @@ -24,15 +28,22 @@ KBUILD_CFLAGS += $(CLANG_FLAGS) KBUILD_CFLAGS += $(call cc-option,-fno-PIE) KBUILD_AFLAGS := $(filter-out -DCC_USING_EXPOLINE,$(KBUILD_AFLAGS)) -LDFLAGS_purgatory := -r --no-undefined -nostdlib -z nodefaultlib -T +# Since we link purgatory with -r unresolved symbols are not checked, so we +# also link a purgatory.chk binary without -r to check for unresolved symbols. +PURGATORY_LDFLAGS := -nostdlib -z nodefaultlib +LDFLAGS_purgatory := -r $(PURGATORY_LDFLAGS) -T +LDFLAGS_purgatory.chk := -e purgatory_start $(PURGATORY_LDFLAGS) $(obj)/purgatory: $(obj)/purgatory.lds $(PURGATORY_OBJS) FORCE $(call if_changed,ld) +$(obj)/purgatory.chk: $(obj)/purgatory FORCE + $(call if_changed,ld) + OBJCOPYFLAGS_purgatory.ro := -O elf64-s390 OBJCOPYFLAGS_purgatory.ro += --remove-section='*debug*' OBJCOPYFLAGS_purgatory.ro += --remove-section='.comment' OBJCOPYFLAGS_purgatory.ro += --remove-section='.note.*' -$(obj)/purgatory.ro: $(obj)/purgatory FORCE +$(obj)/purgatory.ro: $(obj)/purgatory $(obj)/purgatory.chk FORCE $(call if_changed,objcopy) $(obj)/kexec-purgatory.o: $(obj)/kexec-purgatory.S $(obj)/purgatory.ro FORCE diff --git a/arch/s390/purgatory/purgatory.c b/arch/s390/purgatory/purgatory.c index 3528e6da4e87..0a423bcf6746 100644 --- a/arch/s390/purgatory/purgatory.c +++ b/arch/s390/purgatory/purgatory.c @@ -8,8 +8,8 @@ */ #include <linux/kexec.h> -#include <linux/sha256.h> #include <linux/string.h> +#include <crypto/sha.h> #include <asm/purgatory.h> int verify_sha256_digest(void) diff --git a/arch/s390/purgatory/string.c b/arch/s390/purgatory/string.c new file mode 100644 index 000000000000..c98c22a72db7 --- /dev/null +++ b/arch/s390/purgatory/string.c @@ -0,0 +1,3 @@ +// SPDX-License-Identifier: GPL-2.0 +#define __HAVE_ARCH_MEMCMP /* arch function */ +#include "../lib/string.c" |
