Tell stackvalidate to skip validation of the following code:
- boot image
- vdso image
- kexec purgatory
- realmode
- efi libstub
They all run outside the kernel's normal mode of operation and they
don't affect runtime kernel stack traces, so they're free to skirt the
stackvalidate rules.
Signed-off-by: Josh Poimboeuf <jpoim...@redhat.com>
---
arch/x86/boot/Makefile | 3 ++-
arch/x86/boot/compressed/Makefile | 3 ++-
arch/x86/entry/vdso/Makefile | 5 ++++-
arch/x86/purgatory/Makefile | 2 ++
arch/x86/realmode/Makefile | 4 +++-
arch/x86/realmode/rm/Makefile | 3 ++-
drivers/firmware/efi/libstub/Makefile | 1 +
7 files changed, 16 insertions(+), 5 deletions(-)
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 57bbf2f..f3f0c35 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -14,7 +14,8 @@
# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode.
# The number is the same as you would ordinarily press at bootup.
-KASAN_SANITIZE := n
+KASAN_SANITIZE := n
+STACKVALIDATE := n
SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
diff --git a/arch/x86/boot/compressed/Makefile
b/arch/x86/boot/compressed/Makefile
index 0a291cd..530a46f 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -16,7 +16,8 @@
# (see scripts/Makefile.lib size_append)
# compressed vmlinux.bin.all + u32 size of vmlinux.bin.all
-KASAN_SANITIZE := n
+KASAN_SANITIZE := n
+STACKVALIDATE := n
targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma
\
vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4
diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile
index 96c0617..ccaf812 100644
--- a/arch/x86/entry/vdso/Makefile
+++ b/arch/x86/entry/vdso/Makefile
@@ -3,7 +3,9 @@
#
KBUILD_CFLAGS += $(DISABLE_LTO)
-KASAN_SANITIZE := n
+
+KASAN_SANITIZE := n
+STACKVALIDATE := n
VDSO64-$(CONFIG_X86_64) := y
VDSOX32-$(CONFIG_X86_X32_ABI) := y
@@ -15,6 +17,7 @@ vobjs-y := vdso-note.o vclock_gettime.o vgetcpu.o
# files to link into kernel
obj-y += vma.o
+STACKVALIDATE_vma.o := y
# vDSO images to build
vdso_img-$(VDSO64-y) += 64
diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile
index 2c835e3..a736c19 100644
--- a/arch/x86/purgatory/Makefile
+++ b/arch/x86/purgatory/Makefile
@@ -1,3 +1,5 @@
+STACKVALIDATE := n
+
purgatory-y := purgatory.o stack.o setup-x86_$(BITS).o sha256.o entry64.o
string.o
targets += $(purgatory-y)
diff --git a/arch/x86/realmode/Makefile b/arch/x86/realmode/Makefile
index e02c2c6..7a2d4df 100644
--- a/arch/x86/realmode/Makefile
+++ b/arch/x86/realmode/Makefile
@@ -6,7 +6,9 @@
# for more details.
#
#
-KASAN_SANITIZE := n
+KASAN_SANITIZE := n
+STACKVALIDATE := n
+
subdir- := rm
obj-y += init.o
diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile
index 2730d77..d462a57 100644
--- a/arch/x86/realmode/rm/Makefile
+++ b/arch/x86/realmode/rm/Makefile
@@ -6,7 +6,8 @@
# for more details.
#
#
-KASAN_SANITIZE := n
+KASAN_SANITIZE := n
+STACKVALIDATE := n
always := realmode.bin realmode.relocs
diff --git a/drivers/firmware/efi/libstub/Makefile
b/drivers/firmware/efi/libstub/Makefile
index 816dbe9..b392f3f 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -20,6 +20,7 @@ KBUILD_CFLAGS := $(cflags-y) \
GCOV_PROFILE := n
KASAN_SANITIZE := n
+STACKVALIDATE := n
lib-y := efi-stub-helper.o
lib-$(CONFIG_EFI_ARMSTUB) += arm-stub.o fdt.o
--
2.1.0
--
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