[PATCH 3/3] Revert "x86/retpoline: Temporarily disable objtool when CONFIG_RETPOLINE=y"

From: Josh Poimboeuf
Date: Wed Jan 10 2018 - 20:49:21 EST


This reverts commit 59b6e22f92f9a86dbd0798db72adc97bdb831f86.

Now that objtool is retpoline-aware, we can re-enable objtool and all
its friends, including ORC and the livepatch consistency model.

Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
---
arch/x86/Kconfig | 4 ++--
arch/x86/Kconfig.debug | 6 +++---
2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index abeac4b80b74..d1819161cc6c 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -172,8 +172,8 @@ config X86
select HAVE_PERF_USER_STACK_DUMP
select HAVE_RCU_TABLE_FREE
select HAVE_REGS_AND_STACK_ACCESS_API
- select HAVE_RELIABLE_STACKTRACE if X86_64 && UNWINDER_FRAME_POINTER && STACK_VALIDATION && !RETPOLINE
- select HAVE_STACK_VALIDATION if X86_64 && !RETPOLINE
+ select HAVE_RELIABLE_STACKTRACE if X86_64 && UNWINDER_FRAME_POINTER && STACK_VALIDATION
+ select HAVE_STACK_VALIDATION if X86_64
select HAVE_SYSCALL_TRACEPOINTS
select HAVE_UNSTABLE_SCHED_CLOCK
select HAVE_USER_RETURN_NOTIFIER
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 9f3928d744bc..6293a8768a91 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -359,8 +359,8 @@ config PUNIT_ATOM_DEBUG

choice
prompt "Choose kernel unwinder"
- default UNWINDER_ORC if X86_64 && !RETPOLINE
- default UNWINDER_FRAME_POINTER if X86_32 || RETPOLINE
+ default UNWINDER_ORC if X86_64
+ default UNWINDER_FRAME_POINTER if X86_32
---help---
This determines which method will be used for unwinding kernel stack
traces for panics, oopses, bugs, warnings, perf, /proc/<pid>/stack,
@@ -368,7 +368,7 @@ choice

config UNWINDER_ORC
bool "ORC unwinder"
- depends on X86_64 && !RETPOLINE
+ depends on X86_64
select STACK_VALIDATION
---help---
This option enables the ORC (Oops Rewind Capability) unwinder for
--
2.14.3