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From: Julien Thierry <jthierry@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: jpoimboe@redhat.com, peterz@infradead.org, raphael.gault@arm.com,
	Julien Thierry <jthierry@redhat.com>
Subject: [PATCH 09/10] objtool: Split generic and arch specific CFI definitions
Date: Wed, 25 Mar 2020 08:42:02 +0000	[thread overview]
Message-ID: <20200325084203.17005-10-jthierry@redhat.com> (raw)
In-Reply-To: <20200325084203.17005-1-jthierry@redhat.com>

Some CFI definitions used by generic objtool code have no reason to vary
from one architecture to another. Move those definition to generic code
and keep a separate per arch header to provide architecture specific CFI
definitions.

Signed-off-by: Julien Thierry <jthierry@redhat.com>
---
 tools/objtool/Makefile                    |  3 ++-
 tools/objtool/arch/x86/include/cfi_regs.h | 25 +++++++++++++++++++++++
 tools/objtool/cfi.h                       | 21 ++-----------------
 3 files changed, 29 insertions(+), 20 deletions(-)
 create mode 100644 tools/objtool/arch/x86/include/cfi_regs.h

diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index 519af6ec4eee..11b7dc5d18fe 100644
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -29,7 +29,8 @@ all: $(OBJTOOL)
 
 INCLUDES := -I$(srctree)/tools/include \
 	    -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
-	    -I$(srctree)/tools/arch/$(SRCARCH)/include
+	    -I$(srctree)/tools/arch/$(SRCARCH)/include	\
+	    -I$(srctree)/tools/objtool/arch/$(SRCARCH)/include
 WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed
 CFLAGS   := -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) $(LIBELF_FLAGS)
 LDFLAGS  += $(LIBELF_LIBS) $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS)
diff --git a/tools/objtool/arch/x86/include/cfi_regs.h b/tools/objtool/arch/x86/include/cfi_regs.h
new file mode 100644
index 000000000000..79bc517efba8
--- /dev/null
+++ b/tools/objtool/arch/x86/include/cfi_regs.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#ifndef _OBJTOOL_CFI_REGS_H
+#define _OBJTOOL_CFI_REGS_H
+
+#define CFI_AX			0
+#define CFI_DX			1
+#define CFI_CX			2
+#define CFI_BX			3
+#define CFI_SI			4
+#define CFI_DI			5
+#define CFI_BP			6
+#define CFI_SP			7
+#define CFI_R8			8
+#define CFI_R9			9
+#define CFI_R10			10
+#define CFI_R11			11
+#define CFI_R12			12
+#define CFI_R13			13
+#define CFI_R14			14
+#define CFI_R15			15
+#define CFI_RA			16
+#define CFI_NUM_REGS		17
+
+#endif /* _OBJTOOL_CFI_REGS_H */
diff --git a/tools/objtool/cfi.h b/tools/objtool/cfi.h
index 4427bf8ed686..1a3e7b807994 100644
--- a/tools/objtool/cfi.h
+++ b/tools/objtool/cfi.h
@@ -6,30 +6,13 @@
 #ifndef _OBJTOOL_CFI_H
 #define _OBJTOOL_CFI_H
 
+#include "cfi_regs.h"
+
 #define CFI_UNDEFINED		-1
 #define CFI_CFA			-2
 #define CFI_SP_INDIRECT		-3
 #define CFI_BP_INDIRECT		-4
 
-#define CFI_AX			0
-#define CFI_DX			1
-#define CFI_CX			2
-#define CFI_BX			3
-#define CFI_SI			4
-#define CFI_DI			5
-#define CFI_BP			6
-#define CFI_SP			7
-#define CFI_R8			8
-#define CFI_R9			9
-#define CFI_R10			10
-#define CFI_R11			11
-#define CFI_R12			12
-#define CFI_R13			13
-#define CFI_R14			14
-#define CFI_R15			15
-#define CFI_RA			16
-#define CFI_NUM_REGS		17
-
 struct cfi_reg {
 	int base;
 	int offset;
-- 
2.21.1


  parent reply	other threads:[~2020-03-25  8:42 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-25  8:41 [PATCH 00/10] Objtool updates for easier portability Julien Thierry
2020-03-25  8:41 ` [PATCH 01/10] objtool: Move header sync-check ealier in build Julien Thierry
2020-03-25  8:41 ` [PATCH 02/10] objtool: check: Remove redundant checks on operand type Julien Thierry
2020-03-25  8:41 ` [PATCH 03/10] objtool: check: Clean instruction state before each function validation Julien Thierry
2020-03-25  8:41 ` [PATCH 04/10] objtool: check: Ignore empty alternative groups Julien Thierry
2020-03-25  8:41 ` [PATCH 05/10] objtool: check: Remove check preventing branches within alternative Julien Thierry
2020-03-25  8:41 ` [PATCH 06/10] objtool: check: Use arch specific values in restore_reg() Julien Thierry
2020-03-25  8:42 ` [PATCH 07/10] objtool: check: Allow save/restore hint in non standard function symbols Julien Thierry
2020-03-25  8:42 ` [PATCH 08/10] objtool: Add abstraction for computation of symbols offsets Julien Thierry
2020-03-25  8:42 ` Julien Thierry [this message]
2020-03-25  8:42 ` [PATCH 10/10] objtool: Support multiple stack_op per instruction Julien Thierry

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