powerpc: Make single-stepping emulation (mostly) usable on 32-bit

The sc instruction emulation can't be done the same way on 32-bit
as 64-bit yet, but this should work OK.

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 0 insertions, 24 deletions

diff --git a/include/asm-ppc64/sstep.h b/include/asm-ppc64/sstep.h
deleted file mode 100644
index 4a68db50ee6f..000000000000
--- a/include/asm-ppc64/sstep.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (C) 2004 Paul Mackerras <paulus@au.ibm.com>, IBM
- *
- * 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.
- */
-
-struct pt_regs;
-
-/*
- * We don't allow single-stepping an mtmsrd that would clear
- * MSR_RI, since that would make the exception unrecoverable.
- * Since we need to single-step to proceed from a breakpoint,
- * we don't allow putting a breakpoint on an mtmsrd instruction.
- * Similarly we don't allow breakpoints on rfid instructions.
- * These macros tell us if an instruction is a mtmsrd or rfid.
- */
-#define IS_MTMSRD(instr)        (((instr) & 0xfc0007fe) == 0x7c000164)
-#define IS_RFID(instr)          (((instr) & 0xfc0007fe) == 0x4c000024)
-
-/* Emulate instructions that cause a transfer of control. */
-extern int emulate_step(struct pt_regs *regs, unsigned int instr);