diff options
| author | Ingo Molnar <mingo@kernel.org> | 2020-03-21 11:23:40 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-03-21 11:24:41 +0300 |
| commit | a4654e9bde4ecedb4921e6c8fe2088114bdff1b3 (patch) | |
| tree | 1b9970b520d7bc7176cc9460fe67f210be5ea181 /arch/x86/purgatory | |
| parent | 7add7875a8eb4ffe5eddaf8a11e409c9e1b6e3f3 (diff) | |
| parent | e4160b2e4b02377c67f8ecd05786811598f39acd (diff) | |
| download | linux-a4654e9bde4ecedb4921e6c8fe2088114bdff1b3.tar.xz | |
Merge branch 'x86/kdump' into locking/kcsan, to resolve conflicts
Conflicts:
arch/x86/purgatory/Makefile
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/purgatory')
| -rw-r--r-- | arch/x86/purgatory/.gitignore | 1 | ||||
| -rw-r--r-- | arch/x86/purgatory/Makefile | 21 |
2 files changed, 16 insertions, 6 deletions
diff --git a/arch/x86/purgatory/.gitignore b/arch/x86/purgatory/.gitignore new file mode 100644 index 000000000000..d2be1500671d --- /dev/null +++ b/arch/x86/purgatory/.gitignore @@ -0,0 +1 @@ +purgatory.chk diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile index 69379bce9574..b04e6e72a592 100644 --- a/arch/x86/purgatory/Makefile +++ b/arch/x86/purgatory/Makefile @@ -14,11 +14,17 @@ $(obj)/sha256.o: $(srctree)/lib/crypto/sha256.c FORCE CFLAGS_sha256.o := -D__DISABLE_EXPORTS -LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined -nostdlib -z nodefaultlib -targets += purgatory.ro - -# Sanitizer runtimes are unavailable and cannot be linked here. +# When linking purgatory.ro with -r unresolved symbols are not checked, +# also link a purgatory.chk binary without -r to check for unresolved symbols. +PURGATORY_LDFLAGS := -e purgatory_start -nostdlib -z nodefaultlib +LDFLAGS_purgatory.ro := -r $(PURGATORY_LDFLAGS) +LDFLAGS_purgatory.chk := $(PURGATORY_LDFLAGS) +targets += purgatory.ro purgatory.chk + +# Sanitizer, etc. runtimes are unavailable and cannot be linked here. +GCOV_PROFILE := n KASAN_SANITIZE := n +UBSAN_SANITIZE := n KCSAN_SANITIZE := n KCOV_INSTRUMENT := n @@ -27,7 +33,7 @@ KCOV_INSTRUMENT := n PURGATORY_CFLAGS_REMOVE := -mcmodel=kernel PURGATORY_CFLAGS := -mcmodel=large -ffreestanding -fno-zero-initialized-in-bss -PURGATORY_CFLAGS += $(DISABLE_STACKLEAK_PLUGIN) +PURGATORY_CFLAGS += $(DISABLE_STACKLEAK_PLUGIN) -DDISABLE_BRANCH_PROFILING # Default KBUILD_CFLAGS can have -pg option set when FTRACE is enabled. That # in turn leaves some undefined symbols like __fentry__ in purgatory and not @@ -60,12 +66,15 @@ CFLAGS_string.o += $(PURGATORY_CFLAGS) $(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE $(call if_changed,ld) +$(obj)/purgatory.chk: $(obj)/purgatory.ro FORCE + $(call if_changed,ld) + targets += kexec-purgatory.c quiet_cmd_bin2c = BIN2C $@ cmd_bin2c = $(objtree)/scripts/bin2c kexec_purgatory < $< > $@ -$(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE +$(obj)/kexec-purgatory.c: $(obj)/purgatory.ro $(obj)/purgatory.chk FORCE $(call if_changed,bin2c) obj-$(CONFIG_KEXEC_FILE) += kexec-purgatory.o |