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authorLinus Torvalds <torvalds@linux-foundation.org>2022-08-01 10:14:19 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-08-01 10:14:19 -0700
commit8b7054528cd5ac96383aa89315670d74865c8dc2 (patch)
tree1f98f85bf3f6d4f7f0cf6f6609a84b9026343bf3 /arch
parentecf9b7bfea60ca816b2b44716e3f1dde148ea196 (diff)
parent2d17bd24b0169d3fdbf003dfd55af600e9a30553 (diff)
Merge tag 'x86_build_for_v6.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 build updates from Borislav Petkov: - Fix stack protector builds when cross compiling with Clang - Other Kbuild improvements and fixes * tag 'x86_build_for_v6.0_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/purgatory: Omit use of bin2c x86/purgatory: Hard-code obj-y in Makefile x86/build: Remove unused OBJECT_FILES_NON_STANDARD_test_nx.o x86/Kconfig: Fix CONFIG_CC_HAS_SANE_STACKPROTECTOR when cross compiling with clang
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/.gitignore2
-rw-r--r--arch/x86/Kconfig5
-rw-r--r--arch/x86/kernel/Makefile2
-rw-r--r--arch/x86/purgatory/Makefile10
-rw-r--r--arch/x86/purgatory/kexec-purgatory.S14
5 files changed, 18 insertions, 15 deletions
diff --git a/arch/x86/.gitignore b/arch/x86/.gitignore
index 677111acbaa3..f2e1d6c347fb 100644
--- a/arch/x86/.gitignore
+++ b/arch/x86/.gitignore
@@ -3,6 +3,4 @@ boot/compressed/vmlinux
tools/test_get_len
tools/insn_sanity
tools/insn_decoder_test
-purgatory/kexec-purgatory.c
purgatory/purgatory.ro
-
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 52a7f91527fe..17a16bcb174c 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -392,8 +392,8 @@ config PGTABLE_LEVELS
config CC_HAS_SANE_STACKPROTECTOR
bool
- default $(success,$(srctree)/scripts/gcc-x86_64-has-stack-protector.sh $(CC)) if 64BIT
- default $(success,$(srctree)/scripts/gcc-x86_32-has-stack-protector.sh $(CC))
+ default $(success,$(srctree)/scripts/gcc-x86_64-has-stack-protector.sh $(CC) $(CLANG_FLAGS)) if 64BIT
+ default $(success,$(srctree)/scripts/gcc-x86_32-has-stack-protector.sh $(CC) $(CLANG_FLAGS))
help
We have to make sure stack protector is unconditionally disabled if
the compiler produces broken code or if it does not let us control
@@ -2010,7 +2010,6 @@ config KEXEC
config KEXEC_FILE
bool "kexec file based system call"
select KEXEC_CORE
- select BUILD_BIN2C
depends on X86_64
depends on CRYPTO=y
depends on CRYPTO_SHA256=y
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 4c8b6ae802ac..a20a5ebfacd7 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -34,8 +34,6 @@ KASAN_SANITIZE_sev.o := n
# by several compilation units. To be safe, disable all instrumentation.
KCSAN_SANITIZE := n
-OBJECT_FILES_NON_STANDARD_test_nx.o := y
-
# If instrumentation of this dir is enabled, boot hangs during first second.
# Probably could be more selective here, but note that files related to irqs,
# boot, dumpstack/stacktrace, etc are either non-interesting or can lead to
diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile
index ae53d54d7959..31c634a22818 100644
--- a/arch/x86/purgatory/Makefile
+++ b/arch/x86/purgatory/Makefile
@@ -73,12 +73,6 @@ $(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE
$(obj)/purgatory.chk: $(obj)/purgatory.ro FORCE
$(call if_changed,ld)
-targets += kexec-purgatory.c
+$(obj)/kexec-purgatory.o: $(obj)/purgatory.ro $(obj)/purgatory.chk
-quiet_cmd_bin2c = BIN2C $@
- cmd_bin2c = $(objtree)/scripts/bin2c kexec_purgatory < $< > $@
-
-$(obj)/kexec-purgatory.c: $(obj)/purgatory.ro $(obj)/purgatory.chk FORCE
- $(call if_changed,bin2c)
-
-obj-$(CONFIG_KEXEC_FILE) += kexec-purgatory.o
+obj-y += kexec-purgatory.o
diff --git a/arch/x86/purgatory/kexec-purgatory.S b/arch/x86/purgatory/kexec-purgatory.S
new file mode 100644
index 000000000000..8530fe93b718
--- /dev/null
+++ b/arch/x86/purgatory/kexec-purgatory.S
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+ .section .rodata, "a"
+
+ .align 8
+kexec_purgatory:
+ .globl kexec_purgatory
+ .incbin "arch/x86/purgatory/purgatory.ro"
+.Lkexec_purgatory_end:
+
+ .align 8
+kexec_purgatory_size:
+ .globl kexec_purgatory_size
+ .quad .Lkexec_purgatory_end - kexec_purgatory