[ARM] General update of various ARM related files.

- Fix ARM Makefile; we now build with -Os instead of -O2.
- Fix backtrace code to display more registers correctly.
- Fix various build errors.
- Fix PSR for architecture compliance.
- Update mach-types file.

arch/arm/Makefile

@@ -10,10 +10,12 @@
 LDFLAGS_vmlinux	:=-p -X -T arch/arm/vmlinux.lds
 OBJCOPYFLAGS	:=-O binary -R .note -R .comment -S
 GZFLAGS		:=-9
-CFLAGS		+=-pipe
+#CFLAGS		+=-pipe
+
+CFLAGS		:=$(CFLAGS:-O2=-Os)
 
 ifneq ($(CONFIG_NO_FRAME_POINTER),y)
-CFLAGS		:=$(CFLAGS:-fomit-frame-pointer=)
+CFLAGS		:=$(CFLAGS: -fomit-frame-pointer=)
 endif
 
 ifeq ($(CONFIG_DEBUG_INFO),y)
@@ -24,7 +26,7 @@ endif
 # the options further down the list override previous items.
 #
 apcs-$(CONFIG_CPU_32)		:=-mapcs-32
-apcs-$(CONFIG_CPU_26)		:=-mapcs-26 -mcpu=arm3 -Os
+apcs-$(CONFIG_CPU_26)		:=-mapcs-26 -mcpu=arm3
 
 # This selects which instruction set is used.
 # Note that GCC is lame - it doesn't numerically define an
@@ -212,8 +214,11 @@ include/asm-arm/.proc: $(wildcard include/config/cpu/32.h) $(wildcard include/co
 	@ln -sf proc-$(PROCESSOR) include/asm-arm/proc
 	@touch $@
 
-prepare: include/asm-arm/.arch include/asm-arm/.proc \
-	 include/asm-arm/constants.h
+prepare: maketools
+
+.PHONY: maketools
+maketools: include/asm-arm/.arch include/asm-arm/.proc \
+	 include/asm-arm/constants.h include/linux/version.h FORCE
 	@$(MAKETOOLS)
 
 vmlinux: arch/arm/vmlinux.lds
@@ -222,6 +227,7 @@ arch/arm/vmlinux.lds: arch/arm/Makefile $(LDSCRIPT) \
 	$(wildcard include/config/cpu/32.h) \
 	$(wildcard include/config/cpu/26.h) \
 	$(wildcard include/config/arch/*.h)
+	@echo '  Generating $@'
 	@sed 's/TEXTADDR/$(TEXTADDR)/;s/DATAADDR/$(DATAADDR)/' $(LDSCRIPT) >$@
 
 bzImage zImage zinstall Image bootpImage install: vmlinux
@@ -243,10 +249,6 @@ archmrproper: FORCE
 archclean: FORCE
 	@$(MAKEBOOT) clean
 
-# we need version.h
-maketools: include/linux/version.h FORCE
-	@$(MAKETOOLS)
-
 # My testing targets (that short circuit a few dependencies)
 zImg:;	@$(MAKEBOOT) zImage
 Img:;	@$(MAKEBOOT) Image

arch/arm/kernel/traps.c

 /*
  *  linux/arch/arm/kernel/traps.c
  *
- *  Copyright (C) 1995, 1996 Russell King
+ *  Copyright (C) 1995-2002 Russell King
  *  Fragments that appear the same as linux/arch/i386/kernel/traps.c (C) Linus Torvalds
  *
  * This program is free software; you can redistribute it and/or modify
@@ -66,8 +66,17 @@ static int verify_stack(unsigned long sp)
 static void dump_mem(const char *str, unsigned long bottom, unsigned long top)
 {
 	unsigned long p = bottom & ~31;
+	mm_segment_t fs;
 	int i;
 
+	/*
+	 * We need to switch to kernel mode so that we can use __get_user
+	 * to safely read from kernel space.  Note that we now dump the
+	 * code first, just in case the backtrace kills us.
+	 */
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+
 	printk("%s", str);
 	printk("(0x%08lx to 0x%08lx)\n", bottom, top);
 
@@ -86,6 +95,8 @@ static void dump_mem(const char *str, unsigned long bottom, unsigned long top)
 		}
 		printk ("\n");
 	}
+
+	set_fs(fs);
 }
 
 static void dump_instr(struct pt_regs *regs)
@@ -93,8 +104,17 @@ static void dump_instr(struct pt_regs *regs)
 	unsigned long addr = instruction_pointer(regs);
 	const int thumb = thumb_mode(regs);
 	const int width = thumb ? 4 : 8;
+	mm_segment_t fs;
 	int i;
 
+	/*
+	 * We need to switch to kernel mode so that we can use __get_user
+	 * to safely read from kernel space.  Note that we now dump the
+	 * code first, just in case the backtrace kills us.
+	 */
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+
 	printk("Code: ");
 	for (i = -4; i < 1; i++) {
 		unsigned int val, bad;
@@ -112,6 +132,8 @@ static void dump_instr(struct pt_regs *regs)
 		}
 	}
 	printk("\n");
+
+	set_fs(fs);
 }
 
 static void dump_stack(struct task_struct *tsk, unsigned long sp)
@@ -171,22 +193,9 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
 		current->comm, current->pid, tsk->thread_info + 1);
 
 	if (!user_mode(regs) || in_interrupt()) {
-		mm_segment_t fs;
-
-		/*
-		 * We need to switch to kernel mode so that we can
-		 * use __get_user to safely read from kernel space.
-		 * Note that we now dump the code first, just in case
-		 * the backtrace kills us.
-		 */
-		fs = get_fs();
-		set_fs(KERNEL_DS);
-
 		dump_stack(tsk, (unsigned long)(regs + 1));
 		dump_backtrace(regs, tsk);
 		dump_instr(regs);
-
-		set_fs(fs);
 	}
 
 	spin_unlock_irq(&die_lock);
@@ -233,7 +242,7 @@ asmlinkage void do_undefinstr(struct pt_regs *regs)
 }
 
 #ifdef CONFIG_CPU_26
-asmlinkage void do_excpt(int address, struct pt_regs *regs, int mode)
+asmlinkage void do_excpt(unsigned long address, struct pt_regs *regs, int mode)
 {
 	siginfo_t info;
 
@@ -274,21 +283,12 @@ asmlinkage void do_unexp_fiq (struct pt_regs *regs)
 asmlinkage void bad_mode(struct pt_regs *regs, int reason, int proc_mode)
 {
 	unsigned int vectors = vectors_base();
-	mm_segment_t fs;
 
 	console_verbose();
 
 	printk(KERN_CRIT "Bad mode in %s handler detected: mode %s\n",
 		handler[reason], processor_modes[proc_mode]);
 
-	/*
-	 * We need to switch to kernel mode so that we can use __get_user
-	 * to safely read from kernel space.  Note that we now dump the
-	 * code first, just in case the backtrace kills us.
-	 */
-	fs = get_fs();
-	set_fs(KERNEL_DS);
-
 	/*
 	 * Dump out the vectors and stub routines.  Maybe a better solution
 	 * would be to dump them out only if we detect that they are corrupted.
@@ -296,10 +296,8 @@ asmlinkage void bad_mode(struct pt_regs *regs, int reason, int proc_mode)
 	dump_mem(KERN_CRIT "Vectors: ", vectors, vectors + 0x40);
 	dump_mem(KERN_CRIT "Stubs: ", vectors + 0x200, vectors + 0x4b8);
 
-	set_fs(fs);
-
 	die("Oops", regs, 0);
-	cli();
+	local_irq_disable();
 	panic("bad mode");
 }
 
@@ -308,13 +306,7 @@ static int bad_syscall(int n, struct pt_regs *regs)
 	struct thread_info *thread = current_thread_info();
 	siginfo_t info;
 
-	/* You might think just testing `handler' would be enough, but PER_LINUX
-	 * points it to no_lcall7 to catch undercover SVr4 binaries.  Gutted.
-	 */
 	if (current->personality != PER_LINUX && thread->exec_domain->handler) {
-		/* Hand it off to iBCS.  The extra parameter and consequent type 
-		 * forcing is necessary because of the weird ARM calling convention.
-		 */
 		thread->exec_domain->handler(n, regs);
 		return regs->ARM_r0;
 	}
@@ -418,13 +410,13 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
 	case NR(usr26):
 		if (!(elf_hwcap & HWCAP_26BIT))
 			break;
-		regs->ARM_cpsr &= ~0x10;
+		regs->ARM_cpsr &= ~MODE32_BIT;
 		return regs->ARM_r0;
 
 	case NR(usr32):
 		if (!(elf_hwcap & HWCAP_26BIT))
 			break;
-		regs->ARM_cpsr |= 0x10;
+		regs->ARM_cpsr |= MODE32_BIT;
 		return regs->ARM_r0;
 #else
 	case NR(cacheflush):

arch/arm/lib/backtrace.S

@@ -52,25 +52,32 @@ ENTRY(c_backtrace)
 3:		tst	frame, mask		@ Check for address exceptions...
 		bne	1b
 
-1001:		ldmda	frame, {r0, r1, r2, r3}	@ fp, sp, lr, pc
-		mov	next, r0
-
+1001:		ldr	next, [frame, #-12]	@ get fp
+1002:		ldr	r2, [frame, #-4]	@ get lr
+1003:		ldr	r3, [frame, #0]		@ get pc
 		sub	save, r3, offset	@ Correct PC for prefetching
 		bic	save, save, mask
+1004:		ldr	r1, [save, #0]		@ get instruction at function
+		mov	r1, r1, lsr #10
+		ldr	r3, .Ldsi+4
+		teq	r1, r3
+		subeq	save, save, #4
 		adr	r0, .Lfe
 		mov	r1, save
 		bic	r2, r2, mask
 		bl	printk			@ print pc and link register
 
-		sub	r0, frame, #16
-1002:		ldr	r1, [save, #4]		@ get instruction at function+4
+		ldr	r0, [frame, #-8]	@ get sp
+		sub	r0, r0, #4
+1005:		ldr	r1, [save, #4]		@ get instruction at function+4
 		mov	r3, r1, lsr #10
 		ldr	r2, .Ldsi+4
 		teq	r3, r2			@ Check for stmia sp!, {args}
 		addeq	save, save, #4		@ next instruction
 		bleq	.Ldumpstm
 
-1003:		ldr	r1, [save, #4]		@ Get 'stmia sp!, {rlist, fp, ip, lr, pc}' instruction
+		sub	r0, frame, #16
+1006:		ldr	r1, [save, #4]		@ Get 'stmia sp!, {rlist, fp, ip, lr, pc}' instruction
 		mov	r3, r1, lsr #10
 		ldr	r2, .Ldsi
 		teq	r3, r2
@@ -87,7 +94,7 @@ ENTRY(c_backtrace)
  */
 		.section .fixup,"ax"
 		.align	0
-1004:		ldr	r0, =.Lbad
+1007:		ldr	r0, =.Lbad
 		mov	r1, frame
 		bl	printk
 		LOADREGS(fd, sp!, {r4 - r8, pc})
@@ -96,9 +103,12 @@ ENTRY(c_backtrace)
 		
 		.section __ex_table,"a"
 		.align	3
-		.long	1001b, 1004b
-		.long	1002b, 1004b
-		.long	1003b, 1004b
+		.long	1001b, 1007b
+		.long	1002b, 1007b
+		.long	1003b, 1007b
+		.long	1004b, 1007b
+		.long	1005b, 1007b
+		.long	1006b, 1007b
 		.previous
 
 #define instr r4

arch/arm/mach-footbridge/personal-pci.c

@@ -53,4 +53,4 @@ static int __init personal_pci_init(void)
 	return 0;
 }
 
-subsys_initcall(&personal_pci_init);
+subsys_initcall(personal_pci_init);

arch/arm/mach-integrator/arch.c

@@ -56,6 +56,7 @@ static int __init integrator_init(void)
 	register_kmi(&integrator_keyboard);
 	register_kmi(&integrator_mouse);
 #endif
+	return 0;
 }
 
 __initcall(integrator_init);

arch/arm/tools/mach-types

@@ -6,7 +6,7 @@
 # To add an entry into this database, please see Documentation/arm/README,
 # or contact rmk@arm.linux.org.uk
 #
-# Last update: Tue May 21 14:19:05 2002
+# Last update: Fri Jul 5 21:32:20 2002
 #
 # machine_is_xxx	CONFIG_xxxx		MACH_TYPE_xxx		number
 #
@@ -192,3 +192,18 @@ ks8695			ARCH_KS8695		KS8695			180
 brh			ARCH_BRH		BRH			181
 s3c2410			ARCH_S3C2410		S3C2410			182
 possio_px30		ARCH_POSSIO_PX30	POSSIO_PX30		183
+s3c2800			ARCH_S3C2800		S3C2800			184
+fleetwood		SA1100_FLEETWOOD	FLEETWOOD		185
+omaha			ARCH_OMAHA		OMAHA			186
+ta7			ARCH_TA7		TA7			187
+nova			SA1100_NOVA		NOVA			188
+hmk			ARCH_HMK		HMK			189
+inphinity		ARCH_INPHINITY		INPHINITY		190
+fester			SA1100_FESTER		FESTER			191
+gpi			ARCH_GPI		GPI			192
+smdk2410		ARCH_SMDK2410		SMDK2410		193
+premium			ARCH_PREMIUM		PREMIUM			194
+nexio			SA1100_NEXIO		NEXIO			195
+bitbox			SA1100_BITBOX		BITBOX			196
+g200			SA1100_G200		G200			197
+gill			SA1100_GILL		GILL			198

include/asm-arm/cacheflush.h

@@ -10,6 +10,8 @@
 #ifndef _ASMARM_CACHEFLUSH_H
 #define _ASMARM_CACHEFLUSH_H
 
+#include <linux/sched.h>
+#include <linux/mm.h>
 #include <asm/proc/cache.h>
 
 #endif

include/asm-arm/irq.h

@@ -37,6 +37,7 @@ extern void enable_irq(unsigned int);
 #define IRQT_BOTHEDGE	(__IRQT_RISEDGE|__IRQT_FALEDGE)
 #define IRQT_LOW	(__IRQT_LOWLVL)
 #define IRQT_HIGH	(__IRQT_HIGHLVL)
+#define IRQT_PROBE	(1 << 4)
 
 int set_irq_type(unsigned int irq, unsigned int type);
 

include/asm-arm/mmu_context.h

@@ -13,13 +13,10 @@
 #ifndef __ASM_ARM_MMU_CONTEXT_H
 #define __ASM_ARM_MMU_CONTEXT_H
 
-#include <asm/bitops.h>
-#include <asm/pgtable.h>
-#include <asm/arch/memory.h>
 #include <asm/proc-fns.h>
 
-#define destroy_context(mm)		do { } while(0)
 #define init_new_context(tsk,mm)	0
+#define destroy_context(mm)		do { } while(0)
 
 /*
  * This is called when "tsk" is about to enter lazy TLB mode.
@@ -30,7 +27,8 @@
  *
  * tsk->mm will be NULL
  */
-static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk, unsigned cpu)
+static inline void
+enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk, unsigned cpu)
 {
 }
 
@@ -42,11 +40,12 @@ static inline void
 switch_mm(struct mm_struct *prev, struct mm_struct *next,
 	  struct task_struct *tsk, unsigned int cpu)
 {
-	if (prev != next)
-		cpu_switch_mm(next->pgd, next);
+	cpu_switch_mm(next->pgd, next);
 }
 
-#define activate_mm(prev, next) \
-	switch_mm((prev),(next),NULL,smp_processor_id())
+static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
+{
+	cpu_switch_mm(next->pgd, next);
+}
 
 #endif

include/asm-arm/proc-armv/pgtable.h

@@ -144,13 +144,13 @@ static inline pte_t *pmd_page_kernel(pmd_t pmd)
  * The following macros handle the cache and bufferable bits...
  */
 #define _L_PTE_DEFAULT	L_PTE_PRESENT | L_PTE_YOUNG
-#define _L_PTE_READ	L_PTE_USER | L_PTE_CACHEABLE | L_PTE_BUFFERABLE
+#define _L_PTE_READ	L_PTE_USER | L_PTE_EXEC | L_PTE_CACHEABLE | L_PTE_BUFFERABLE
 
 #define PAGE_NONE       __pgprot(_L_PTE_DEFAULT)
 #define PAGE_COPY       __pgprot(_L_PTE_DEFAULT | _L_PTE_READ)
 #define PAGE_SHARED     __pgprot(_L_PTE_DEFAULT | _L_PTE_READ | L_PTE_WRITE)
 #define PAGE_READONLY   __pgprot(_L_PTE_DEFAULT | _L_PTE_READ)
-#define PAGE_KERNEL     __pgprot(_L_PTE_DEFAULT | L_PTE_CACHEABLE | L_PTE_BUFFERABLE | L_PTE_DIRTY | L_PTE_WRITE)
+#define PAGE_KERNEL     __pgprot(_L_PTE_DEFAULT | L_PTE_CACHEABLE | L_PTE_BUFFERABLE | L_PTE_DIRTY | L_PTE_WRITE | L_PTE_EXEC)
 
 #define _PAGE_CHG_MASK	(PAGE_MASK | L_PTE_DIRTY | L_PTE_YOUNG)
 

include/asm-arm/proc-armv/ptrace.h

@@ -130,7 +130,7 @@ static inline int valid_user_regs(struct pt_regs *regs)
 	/*
 	 * Force CPSR to something logical...
 	 */
-	regs->ARM_cpsr &= (PSR_V_BIT|PSR_C_BIT|PSR_Z_BIT|PSR_N_BIT|MODE32_BIT);
+	regs->ARM_cpsr &= PSR_f | PSR_s | PSR_x | PSR_T_BIT | MODE32_BIT;
 
 	return 0;
 }

include/asm-arm/proc-armv/system.h

@@ -182,12 +182,12 @@ static inline unsigned long __xchg(unsigned long x, volatile void *ptr, int size
 			break;
 #else
 		case 1:	__asm__ __volatile__ ("swpb %0, %1, [%2]"
-					: "=r" (ret)
+					: "=&r" (ret)
 					: "r" (x), "r" (ptr)
 					: "memory");
 			break;
 		case 4:	__asm__ __volatile__ ("swp %0, %1, [%2]"
-					: "=r" (ret)
+					: "=&r" (ret)
 					: "r" (x), "r" (ptr)
 					: "memory");
 			break;

include/asm-arm/suspend.h

+#ifdef _ASMARM_SUSPEND_H
+#define _ASMARM_SUSPEND_H
+
+#endif