Merge branch 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool updates from Ingo Molnar:
 "This is an extensive rewrite of the objdump tool to track all stack
  pointer modifications through the machine instructions of disassembled
  functions found in kernel .o files.

  This re-design removes the prior dependency on CONFIG_FRAME_POINTERS,
  with the goal to prepare the tool to generate kernel debuginfo data in
  the future. There's also an increase in checking/tracking robustness
  as a side effect as well.

  No (intended) changes to existing functionality"

* 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Silence warnings for functions which use IRET
  objtool: Implement stack validation 2.0
  objtool, x86: Add several functions and files to the objtool whitelist
  objtool: Move checking code to check.c

14 files changed, 36 insertions, 5 deletions

diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 34b3fa2889d1..9e32d40d71bd 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -2,6 +2,8 @@
 # Arch-specific CryptoAPI modules.
 #
 
+OBJECT_FILES_NON_STANDARD := y
+
 avx_supported := $(call as-instr,vpxor %xmm0$(comma)%xmm0$(comma)%xmm0,yes,no)
 avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
 				$(comma)4)$(comma)%ymm2,yes,no)
diff --git a/arch/x86/crypto/sha1-mb/Makefile b/arch/x86/crypto/sha1-mb/Makefile
index 2f8756375df5..2e14acc3da25 100644
--- a/arch/x86/crypto/sha1-mb/Makefile
+++ b/arch/x86/crypto/sha1-mb/Makefile
@@ -2,6 +2,8 @@
 # Arch-specific CryptoAPI modules.
 #
 
+OBJECT_FILES_NON_STANDARD := y
+
 avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
                                 $(comma)4)$(comma)%ymm2,yes,no)
 ifeq ($(avx2_supported),yes)
diff --git a/arch/x86/crypto/sha256-mb/Makefile b/arch/x86/crypto/sha256-mb/Makefile
index 41089e7c400c..45b4fca6c4a8 100644
--- a/arch/x86/crypto/sha256-mb/Makefile
+++ b/arch/x86/crypto/sha256-mb/Makefile
@@ -2,6 +2,8 @@
 # Arch-specific CryptoAPI modules.
 #
 
+OBJECT_FILES_NON_STANDARD := y
+
 avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
                                 $(comma)4)$(comma)%ymm2,yes,no)
 ifeq ($(avx2_supported),yes)
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 4b994232cb57..3c7c419c4e3e 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -29,6 +29,7 @@ OBJECT_FILES_NON_STANDARD_head_$(BITS).o		:= y
 OBJECT_FILES_NON_STANDARD_relocate_kernel_$(BITS).o	:= y
 OBJECT_FILES_NON_STANDARD_ftrace_$(BITS).o		:= y
 OBJECT_FILES_NON_STANDARD_test_nx.o			:= y
+OBJECT_FILES_NON_STANDARD_paravirt_patch_$(BITS).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,
diff --git a/arch/x86/kernel/acpi/Makefile b/arch/x86/kernel/acpi/Makefile
index 26b78d86f25a..85a9e17e0dbc 100644
--- a/arch/x86/kernel/acpi/Makefile
+++ b/arch/x86/kernel/acpi/Makefile
@@ -1,3 +1,5 @@
+OBJECT_FILES_NON_STANDARD_wakeup_$(BITS).o := y
+
 obj-$(CONFIG_ACPI)		+= boot.o
 obj-$(CONFIG_ACPI_SLEEP)	+= sleep.o wakeup_$(BITS).o
 obj-$(CONFIG_ACPI_APEI)		+= apei.o
diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c
index 901c640d152f..69ea0bc1cfa3 100644
--- a/arch/x86/kernel/kprobes/opt.c
+++ b/arch/x86/kernel/kprobes/opt.c
@@ -28,6 +28,7 @@
 #include <linux/kdebug.h>
 #include <linux/kallsyms.h>
 #include <linux/ftrace.h>
+#include <linux/frame.h>
 
 #include <asm/text-patching.h>
 #include <asm/cacheflush.h>
@@ -94,6 +95,7 @@ static void synthesize_set_arg1(kprobe_opcode_t *addr, unsigned long val)
 }
 
 asm (
+			"optprobe_template_func:\n"
 			".global optprobe_template_entry\n"
 			"optprobe_template_entry:\n"
 #ifdef CONFIG_X86_64
@@ -131,7 +133,12 @@ asm (
 			"	popf\n"
 #endif
 			".global optprobe_template_end\n"
-			"optprobe_template_end:\n");
+			"optprobe_template_end:\n"
+			".type optprobe_template_func, @function\n"
+			".size optprobe_template_func, .-optprobe_template_func\n");
+
+void optprobe_template_func(void);
+STACK_FRAME_NON_STANDARD(optprobe_template_func);
 
 #define TMPL_MOVE_IDX \
 	((long)&optprobe_template_val - (long)&optprobe_template_entry)
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 2544700a2a87..67393fc88353 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -9,6 +9,7 @@
 #include <linux/sched.h>
 #include <linux/tboot.h>
 #include <linux/delay.h>
+#include <linux/frame.h>
 #include <acpi/reboot.h>
 #include <asm/io.h>
 #include <asm/apic.h>
@@ -123,6 +124,7 @@ void __noreturn machine_real_restart(unsigned int type)
 #ifdef CONFIG_APM_MODULE
 EXPORT_SYMBOL(machine_real_restart);
 #endif
+STACK_FRAME_NON_STANDARD(machine_real_restart);
 
 /*
  * Some Apple MacBook and MacBookPro's needs reboot=p to be able to reboot
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index ba9891ac5c56..33460fcdeef9 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -36,6 +36,7 @@
 #include <linux/slab.h>
 #include <linux/amd-iommu.h>
 #include <linux/hashtable.h>
+#include <linux/frame.h>
 
 #include <asm/apic.h>
 #include <asm/perf_event.h>
@@ -4906,6 +4907,7 @@ static void svm_vcpu_run(struct kvm_vcpu *vcpu)
 
 	mark_all_clean(svm->vmcb);
 }
+STACK_FRAME_NON_STANDARD(svm_vcpu_run);
 
 static void svm_set_cr3(struct kvm_vcpu *vcpu, unsigned long root)
 {
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index ca5d2b93385c..1b469b6c762f 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -33,6 +33,7 @@
 #include <linux/slab.h>
 #include <linux/tboot.h>
 #include <linux/hrtimer.h>
+#include <linux/frame.h>
 #include "kvm_cache_regs.h"
 #include "x86.h"
 
@@ -8652,6 +8653,7 @@ static void vmx_handle_external_intr(struct kvm_vcpu *vcpu)
 			);
 	}
 }
+STACK_FRAME_NON_STANDARD(vmx_handle_external_intr);
 
 static bool vmx_has_high_real_mode_segbase(void)
 {
@@ -9028,6 +9030,7 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 	vmx_recover_nmi_blocking(vmx);
 	vmx_complete_interrupts(vmx);
 }
+STACK_FRAME_NON_STANDARD(vmx_vcpu_run);
 
 static void vmx_switch_vmcs(struct kvm_vcpu *vcpu, struct loaded_vmcs *vmcs)
 {
diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S
index c81556409bbb..10ffa7e8519f 100644
--- a/arch/x86/lib/msr-reg.S
+++ b/arch/x86/lib/msr-reg.S
@@ -13,14 +13,14 @@
 .macro op_safe_regs op
 ENTRY(\op\()_safe_regs)
 	pushq %rbx
-	pushq %rbp
+	pushq %r12
 	movq	%rdi, %r10	/* Save pointer */
 	xorl	%r11d, %r11d	/* Return value */
 	movl    (%rdi), %eax
 	movl    4(%rdi), %ecx
 	movl    8(%rdi), %edx
 	movl    12(%rdi), %ebx
-	movl    20(%rdi), %ebp
+	movl    20(%rdi), %r12d
 	movl    24(%rdi), %esi
 	movl    28(%rdi), %edi
 1:	\op
@@ -29,10 +29,10 @@ ENTRY(\op\()_safe_regs)
 	movl    %ecx, 4(%r10)
 	movl    %edx, 8(%r10)
 	movl    %ebx, 12(%r10)
-	movl    %ebp, 20(%r10)
+	movl    %r12d, 20(%r10)
 	movl    %esi, 24(%r10)
 	movl    %edi, 28(%r10)
-	popq %rbp
+	popq %r12
 	popq %rbx
 	ret
 3:
diff --git a/arch/x86/net/Makefile b/arch/x86/net/Makefile
index 90568c33ddb0..fefb4b619598 100644
--- a/arch/x86/net/Makefile
+++ b/arch/x86/net/Makefile
@@ -1,4 +1,6 @@
 #
 # Arch-specific network modules
 #
+OBJECT_FILES_NON_STANDARD_bpf_jit.o += y
+
 obj-$(CONFIG_BPF_JIT) += bpf_jit.o bpf_jit_comp.o
diff --git a/arch/x86/platform/efi/Makefile b/arch/x86/platform/efi/Makefile
index f1d83b34c329..2f56e1ed61c3 100644
--- a/arch/x86/platform/efi/Makefile
+++ b/arch/x86/platform/efi/Makefile
@@ -1,4 +1,5 @@
 OBJECT_FILES_NON_STANDARD_efi_thunk_$(BITS).o := y
+OBJECT_FILES_NON_STANDARD_efi_stub_$(BITS).o := y
 
 obj-$(CONFIG_EFI) 		+= quirks.o efi.o efi_$(BITS).o efi_stub_$(BITS).o
 obj-$(CONFIG_EARLY_PRINTK_EFI)	+= early_printk.o
diff --git a/arch/x86/power/Makefile b/arch/x86/power/Makefile
index a6a198c33623..05041871ac90 100644
--- a/arch/x86/power/Makefile
+++ b/arch/x86/power/Makefile
@@ -1,3 +1,5 @@
+OBJECT_FILES_NON_STANDARD_hibernate_asm_$(BITS).o := y
+
 # __restore_processor_state() restores %gs after S3 resume and so should not
 # itself be stack-protected
 nostackp := $(call cc-option, -fno-stack-protector)
diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile
index fffb0a16f9e3..bced7a369a11 100644
--- a/arch/x86/xen/Makefile
+++ b/arch/x86/xen/Makefile
@@ -1,3 +1,6 @@
+OBJECT_FILES_NON_STANDARD_xen-asm_$(BITS).o := y
+OBJECT_FILES_NON_STANDARD_xen-pvh.o := y
+
 ifdef CONFIG_FUNCTION_TRACER
 # Do not profile debug and lowlevel utilities
 CFLAGS_REMOVE_spinlock.o = -pg