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authorJosh Poimboeuf <jpoimboe@redhat.com>2017-11-06 07:21:50 -0600
committerIngo Molnar <mingo@kernel.org>2017-11-07 10:48:23 +0100
commit6a77cff819ae3e31992bde6432c9b5720748a89b (patch)
tree28e36f54f3157bfe9c65156857e9dedc872887f0 /tools/objtool/orc_types.h
parent10259821ac47dbefa6f83ae57f1fa9f1f2c54b3d (diff)
objtool: Move synced files to their original relative locations
This will enable more straightforward comparisons, and it also makes the files 100% identical. Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/407b2aaa317741f48fcf821592c0e96ab3be1890.1509974346.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/objtool/orc_types.h')
-rw-r--r--tools/objtool/orc_types.h107
1 files changed, 0 insertions, 107 deletions
diff --git a/tools/objtool/orc_types.h b/tools/objtool/orc_types.h
deleted file mode 100644
index 9c9dc579bd7d..000000000000
--- a/tools/objtool/orc_types.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * Copyright (C) 2017 Josh Poimboeuf <jpoimboe@redhat.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef _ORC_TYPES_H
-#define _ORC_TYPES_H
-
-#include <linux/types.h>
-#include <linux/compiler.h>
-
-/*
- * The ORC_REG_* registers are base registers which are used to find other
- * registers on the stack.
- *
- * ORC_REG_PREV_SP, also known as DWARF Call Frame Address (CFA), is the
- * address of the previous frame: the caller's SP before it called the current
- * function.
- *
- * ORC_REG_UNDEFINED means the corresponding register's value didn't change in
- * the current frame.
- *
- * The most commonly used base registers are SP and BP -- which the previous SP
- * is usually based on -- and PREV_SP and UNDEFINED -- which the previous BP is
- * usually based on.
- *
- * The rest of the base registers are needed for special cases like entry code
- * and GCC realigned stacks.
- */
-#define ORC_REG_UNDEFINED 0
-#define ORC_REG_PREV_SP 1
-#define ORC_REG_DX 2
-#define ORC_REG_DI 3
-#define ORC_REG_BP 4
-#define ORC_REG_SP 5
-#define ORC_REG_R10 6
-#define ORC_REG_R13 7
-#define ORC_REG_BP_INDIRECT 8
-#define ORC_REG_SP_INDIRECT 9
-#define ORC_REG_MAX 15
-
-/*
- * ORC_TYPE_CALL: Indicates that sp_reg+sp_offset resolves to PREV_SP (the
- * caller's SP right before it made the call). Used for all callable
- * functions, i.e. all C code and all callable asm functions.
- *
- * ORC_TYPE_REGS: Used in entry code to indicate that sp_reg+sp_offset points
- * to a fully populated pt_regs from a syscall, interrupt, or exception.
- *
- * ORC_TYPE_REGS_IRET: Used in entry code to indicate that sp_reg+sp_offset
- * points to the iret return frame.
- *
- * The UNWIND_HINT macros are used only for the unwind_hint struct. They
- * aren't used in struct orc_entry due to size and complexity constraints.
- * Objtool converts them to real types when it converts the hints to orc
- * entries.
- */
-#define ORC_TYPE_CALL 0
-#define ORC_TYPE_REGS 1
-#define ORC_TYPE_REGS_IRET 2
-#define UNWIND_HINT_TYPE_SAVE 3
-#define UNWIND_HINT_TYPE_RESTORE 4
-
-#ifndef __ASSEMBLY__
-/*
- * This struct is more or less a vastly simplified version of the DWARF Call
- * Frame Information standard. It contains only the necessary parts of DWARF
- * CFI, simplified for ease of access by the in-kernel unwinder. It tells the
- * unwinder how to find the previous SP and BP (and sometimes entry regs) on
- * the stack for a given code address. Each instance of the struct corresponds
- * to one or more code locations.
- */
-struct orc_entry {
- s16 sp_offset;
- s16 bp_offset;
- unsigned sp_reg:4;
- unsigned bp_reg:4;
- unsigned type:2;
-} __packed;
-
-/*
- * This struct is used by asm and inline asm code to manually annotate the
- * location of registers on the stack for the ORC unwinder.
- *
- * Type can be either ORC_TYPE_* or UNWIND_HINT_TYPE_*.
- */
-struct unwind_hint {
- u32 ip;
- s16 sp_offset;
- u8 sp_reg;
- u8 type;
-};
-#endif /* __ASSEMBLY__ */
-
-#endif /* _ORC_TYPES_H */