From: Greg Ungerer <g...@uclinux.org>
Some of the entry.S code is common to both MMU and non-MMU builds.
So merge the entry_no.S and entry_mm.S files back into a single file.
With a little code movement we only need a single #ifdef.
Signed-off-by: Greg Ungerer <g...@uclinux.org>
---
arch/m68k/kernel/{entry_mm.S => entry.S} | 105 ++++++++++++++++--------
arch/m68k/kernel/entry_no.S | 130 ------------------------------
2 files changed, 69 insertions(+), 166 deletions(-)
rename arch/m68k/kernel/{entry_mm.S => entry.S} (94%)
delete mode 100644 arch/m68k/kernel/entry_no.S
diff --git a/arch/m68k/kernel/entry_mm.S b/arch/m68k/kernel/entry.S
similarity index 94%
rename from arch/m68k/kernel/entry_mm.S
rename to arch/m68k/kernel/entry.S
index 2385539..e871701 100644
--- a/arch/m68k/kernel/entry_mm.S
+++ b/arch/m68k/kernel/entry.S
@@ -51,6 +51,42 @@
.globl user_irqvec_fixup
.text
+ENTRY(sys_fork)
+ SAVE_SWITCH_STACK
+ pea %sp@(SWITCH_STACK_SIZE)
+ jbsr m68k_fork
+ addql #4,%sp
+ RESTORE_SWITCH_STACK
+ rts
+
+ENTRY(sys_clone)
+ SAVE_SWITCH_STACK
+ pea %sp@(SWITCH_STACK_SIZE)
+ jbsr m68k_clone
+ addql #4,%sp
+ RESTORE_SWITCH_STACK
+ rts
+
+ENTRY(sys_vfork)
+ SAVE_SWITCH_STACK
+ pea %sp@(SWITCH_STACK_SIZE)
+ jbsr m68k_vfork
+ addql #4,%sp
+ RESTORE_SWITCH_STACK
+ rts
+
+ENTRY(sys_sigreturn)
+ SAVE_SWITCH_STACK
+ jbsr do_sigreturn
+ RESTORE_SWITCH_STACK
+ rts
+
+ENTRY(sys_rt_sigreturn)
+ SAVE_SWITCH_STACK
+ jbsr do_rt_sigreturn
+ RESTORE_SWITCH_STACK
+ rts
+
ENTRY(buserr)
SAVE_ALL_INT
GET_CURRENT(%d0)
@@ -76,6 +112,38 @@ ENTRY(ret_from_fork)
addql #4,%sp
jra ret_from_exception
+#if defined(CONFIG_COLDFIRE) || !defined(CONFIG_MMU)
+
+#ifdef TRAP_DBG_INTERRUPT
+
+.globl dbginterrupt
+ENTRY(dbginterrupt)
+ SAVE_ALL_INT
+ GET_CURRENT(%d0)
+ movel %sp,%sp@- /* stack frame pointer argument */
+ jsr dbginterrupt_c
+ addql #4,%sp
+ jra ret_from_exception
+#endif
+
+ENTRY(reschedule)
+ /* save top of frame */
+ pea %sp@
+ jbsr set_esp0
+ addql #4,%sp
+ pea ret_from_exception
+ jmp schedule
+
+ENTRY(ret_from_user_signal)
+ moveq #__NR_sigreturn,%d0
+ trap #0
+
+ENTRY(ret_from_user_rt_signal)
+ movel #__NR_rt_sigreturn,%d0
+ trap #0
+
+#else
+
do_trace_entry:
movel #-ENOSYS,%sp@(PT_OFF_D0)| needed for strace
subql #4,%sp
@@ -274,42 +342,6 @@ ENTRY(bad_inthandler)
RESTORE_ALL
-ENTRY(sys_fork)
- SAVE_SWITCH_STACK
- pea %sp@(SWITCH_STACK_SIZE)
- jbsr m68k_fork
- addql #4,%sp
- RESTORE_SWITCH_STACK
- rts
-
-ENTRY(sys_clone)
- SAVE_SWITCH_STACK
- pea %sp@(SWITCH_STACK_SIZE)
- jbsr m68k_clone
- addql #4,%sp
- RESTORE_SWITCH_STACK
- rts
-
-ENTRY(sys_vfork)
- SAVE_SWITCH_STACK
- pea %sp@(SWITCH_STACK_SIZE)
- jbsr m68k_vfork
- addql #4,%sp
- RESTORE_SWITCH_STACK
- rts
-
-ENTRY(sys_sigreturn)
- SAVE_SWITCH_STACK
- jbsr do_sigreturn
- RESTORE_SWITCH_STACK
- rts
-
-ENTRY(sys_rt_sigreturn)
- SAVE_SWITCH_STACK
- jbsr do_rt_sigreturn
- RESTORE_SWITCH_STACK
- rts
-
resume:
/*
* Beware - when entering resume, prev (the current task) is
@@ -417,3 +449,4 @@ resume:
rts
+#endif /* CONFIG_MMU && !CONFIG_COLDFIRE */
diff --git a/arch/m68k/kernel/entry_no.S b/arch/m68k/kernel/entry_no.S
deleted file mode 100644
index d80cba4..0000000
--- a/arch/m68k/kernel/entry_no.S
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * linux/arch/m68knommu/kernel/entry.S
- *
- * Copyright (C) 1999-2002, Greg Ungerer (g...@snapgear.com)
- * Copyright (C) 1998 D. Jeff Dionne <j...@lineo.ca>,
- * Kenneth Albanowski <kja...@kjahds.com>,
- * Copyright (C) 2000 Lineo Inc. (www.lineo.com)
- *
- * Based on:
- *
- * linux/arch/m68k/kernel/entry.S
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file README.legal in the main directory of this archive
- * for more details.
- *
- * Linux/m68k support by Hamish Macdonald
- *
- * 68060 fixes by Jesper Skov
- * ColdFire support by Greg Ungerer (g...@snapgear.com)
- * 5307 fixes by David W. Miller
- * linux 2.4 support David McCullough <dav...@snapgear.com>
- */
-
-#include <linux/linkage.h>
-#include <asm/errno.h>
-#include <asm/setup.h>
-#include <asm/segment.h>
-#include <asm/asm-offsets.h>
-#include <asm/entry.h>
-#include <asm/unistd.h>
-
-.text
-
-.globl buserr
-.globl trap
-.globl ret_from_exception
-.globl ret_from_signal
-.globl sys_fork
-.globl sys_clone
-.globl sys_vfork
-
-ENTRY(buserr)
- SAVE_ALL_INT
- GET_CURRENT(%d0)
- movel %sp,%sp@- /* stack frame pointer argument */
- jsr buserr_c
- addql #4,%sp
- jra ret_from_exception
-
-ENTRY(trap)
- SAVE_ALL_INT
- GET_CURRENT(%d0)
- movel %sp,%sp@- /* stack frame pointer argument */
- jsr trap_c
- addql #4,%sp
- jra ret_from_exception
-
-#ifdef TRAP_DBG_INTERRUPT
-
-.globl dbginterrupt
-ENTRY(dbginterrupt)
- SAVE_ALL_INT
- GET_CURRENT(%d0)
- movel %sp,%sp@- /* stack frame pointer argument */
- jsr dbginterrupt_c
- addql #4,%sp
- jra ret_from_exception
-#endif
-
-ENTRY(reschedule)
- /* save top of frame */
- pea %sp@
- jbsr set_esp0
- addql #4,%sp
- pea ret_from_exception
- jmp schedule
-
-ENTRY(ret_from_fork)
- movel %d1,%sp@-
- jsr schedule_tail
- addql #4,%sp
- jra ret_from_exception
-
-ENTRY(sys_fork)
- SAVE_SWITCH_STACK
- pea %sp@(SWITCH_STACK_SIZE)
- jbsr m68k_fork
- addql #4,%sp
- RESTORE_SWITCH_STACK
- rts
-
-ENTRY(sys_vfork)
- SAVE_SWITCH_STACK
- pea %sp@(SWITCH_STACK_SIZE)
- jbsr m68k_vfork
- addql #4,%sp
- RESTORE_SWITCH_STACK
- rts
-
-ENTRY(sys_clone)
- SAVE_SWITCH_STACK
- pea %sp@(SWITCH_STACK_SIZE)
- jbsr m68k_clone
- addql #4,%sp
- RESTORE_SWITCH_STACK
- rts
-
-ENTRY(sys_sigreturn)
- SAVE_SWITCH_STACK
- jbsr do_sigreturn
- RESTORE_SWITCH_STACK
- rts
-
-ENTRY(sys_rt_sigreturn)
- SAVE_SWITCH_STACK
- jbsr do_rt_sigreturn
- RESTORE_SWITCH_STACK
- rts
-
-ENTRY(ret_from_user_signal)
- moveq #__NR_sigreturn,%d0
- trap #0
-
-ENTRY(ret_from_user_rt_signal)
- movel #__NR_rt_sigreturn,%d0
- trap #0
-
--
1.7.0.4
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