From c207aee48037abca71c669cbec407b9891965c34 Mon Sep 17 00:00:00 2001 From: Josh Poimboeuf Date: Wed, 28 Jun 2017 10:11:06 -0500 Subject: objtool, x86: Add several functions and files to the objtool whitelist In preparation for an objtool rewrite which will have broader checks, whitelist functions and files which cause problems because they do unusual things with the stack. These whitelists serve as a TODO list for which functions and files don't yet have undwarf unwinder coverage. Eventually most of the whitelists can be removed in favor of manual CFI hint annotations or objtool improvements. Signed-off-by: Josh Poimboeuf Cc: Andy Lutomirski Cc: Jiri Slaby Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: live-patching@vger.kernel.org Link: http://lkml.kernel.org/r/7f934a5d707a574bda33ea282e9478e627fb1829.1498659915.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar --- arch/x86/crypto/Makefile | 2 ++ arch/x86/crypto/sha1-mb/Makefile | 2 ++ arch/x86/crypto/sha256-mb/Makefile | 2 ++ 3 files changed, 6 insertions(+) (limited to 'arch/x86/crypto') 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) -- cgit v1.2.3