diff options
Diffstat (limited to 'arch/m68knommu/kernel')
| -rw-r--r-- | arch/m68knommu/kernel/.gitignore | 1 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/Makefile | 10 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/asm-offsets.c | 76 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/dma.c | 74 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/entry.S | 134 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/init_task.c | 36 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/irq.c | 58 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/m68k_ksyms.c | 78 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/module.c | 126 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/process.c | 404 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/ptrace.c | 255 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/setup.c | 317 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/signal.c | 765 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/sys_m68k.c | 94 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/syscalltable.S | 365 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/time.c | 87 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/traps.c | 365 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/vmlinux.lds.S | 188 |
18 files changed, 0 insertions, 3433 deletions
diff --git a/arch/m68knommu/kernel/.gitignore b/arch/m68knommu/kernel/.gitignore deleted file mode 100644 index c5f676c3c224..000000000000 --- a/arch/m68knommu/kernel/.gitignore +++ /dev/null @@ -1 +0,0 @@ -vmlinux.lds diff --git a/arch/m68knommu/kernel/Makefile b/arch/m68knommu/kernel/Makefile deleted file mode 100644 index 37c3fc074c0a..000000000000 --- a/arch/m68knommu/kernel/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -# -# Makefile for arch/m68knommu/kernel. -# - -extra-y := vmlinux.lds - -obj-y += dma.o entry.o init_task.o irq.o m68k_ksyms.o process.o ptrace.o \ - setup.o signal.o syscalltable.o sys_m68k.o time.o traps.o - -obj-$(CONFIG_MODULES) += module.o diff --git a/arch/m68knommu/kernel/asm-offsets.c b/arch/m68knommu/kernel/asm-offsets.c deleted file mode 100644 index ffe02f41ad46..000000000000 --- a/arch/m68knommu/kernel/asm-offsets.c +++ /dev/null @@ -1,76 +0,0 @@ -/* - * This program is used to generate definitions needed by - * assembly language modules. - * - * We use the technique used in the OSF Mach kernel code: - * generate asm statements containing #defines, - * compile this file to assembler, and then extract the - * #defines from the assembly-language output. - */ - -#include <linux/stddef.h> -#include <linux/sched.h> -#include <linux/kernel_stat.h> -#include <linux/ptrace.h> -#include <linux/hardirq.h> -#include <linux/kbuild.h> -#include <asm/bootinfo.h> -#include <asm/irq.h> -#include <asm/thread_info.h> - -int main(void) -{ - /* offsets into the task struct */ - DEFINE(TASK_THREAD, offsetof(struct task_struct, thread)); - DEFINE(TASK_MM, offsetof(struct task_struct, mm)); - - /* offsets into the irq_cpustat_t struct */ - DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending)); - - /* offsets into the thread struct */ - DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp)); - DEFINE(THREAD_USP, offsetof(struct thread_struct, usp)); - DEFINE(THREAD_SR, offsetof(struct thread_struct, sr)); - DEFINE(THREAD_FS, offsetof(struct thread_struct, fs)); - DEFINE(THREAD_CRP, offsetof(struct thread_struct, crp)); - DEFINE(THREAD_ESP0, offsetof(struct thread_struct, esp0)); - DEFINE(THREAD_FPREG, offsetof(struct thread_struct, fp)); - DEFINE(THREAD_FPCNTL, offsetof(struct thread_struct, fpcntl)); - DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fpstate)); - - /* offsets into the pt_regs */ - DEFINE(PT_OFF_D0, offsetof(struct pt_regs, d0)); - DEFINE(PT_OFF_ORIG_D0, offsetof(struct pt_regs, orig_d0)); - DEFINE(PT_OFF_D1, offsetof(struct pt_regs, d1)); - DEFINE(PT_OFF_D2, offsetof(struct pt_regs, d2)); - DEFINE(PT_OFF_D3, offsetof(struct pt_regs, d3)); - DEFINE(PT_OFF_D4, offsetof(struct pt_regs, d4)); - DEFINE(PT_OFF_D5, offsetof(struct pt_regs, d5)); - DEFINE(PT_OFF_A0, offsetof(struct pt_regs, a0)); - DEFINE(PT_OFF_A1, offsetof(struct pt_regs, a1)); - DEFINE(PT_OFF_A2, offsetof(struct pt_regs, a2)); - DEFINE(PT_OFF_PC, offsetof(struct pt_regs, pc)); - DEFINE(PT_OFF_SR, offsetof(struct pt_regs, sr)); - -#ifdef CONFIG_COLDFIRE - /* bitfields are a bit difficult */ - DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, sr) - 2); -#else - /* bitfields are a bit difficult */ - DEFINE(PT_OFF_FORMATVEC, offsetof(struct pt_regs, pc) + 4); -#endif - - /* signal defines */ - DEFINE(SIGSEGV, SIGSEGV); - DEFINE(SEGV_MAPERR, SEGV_MAPERR); - DEFINE(SIGTRAP, SIGTRAP); - DEFINE(TRAP_TRACE, TRAP_TRACE); - - DEFINE(PT_PTRACED, PT_PTRACED); - - /* Offsets in thread_info structure */ - DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); - DEFINE(TI_PREEMPTCOUNT, offsetof(struct thread_info, preempt_count)); - - return 0; -} diff --git a/arch/m68knommu/kernel/dma.c b/arch/m68knommu/kernel/dma.c deleted file mode 100644 index fc61541aeb71..000000000000 --- a/arch/m68knommu/kernel/dma.c +++ /dev/null @@ -1,74 +0,0 @@ -/* - * Dynamic DMA mapping support. - * - * We never have any address translations to worry about, so this - * is just alloc/free. - */ - -#include <linux/types.h> -#include <linux/gfp.h> -#include <linux/mm.h> -#include <linux/device.h> -#include <linux/dma-mapping.h> -#include <asm/cacheflush.h> - -void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) -{ - void *ret; - /* ignore region specifiers */ - gfp &= ~(__GFP_DMA | __GFP_HIGHMEM); - - if (dev == NULL || (*dev->dma_mask < 0xffffffff)) - gfp |= GFP_DMA; - ret = (void *)__get_free_pages(gfp, get_order(size)); - - if (ret != NULL) { - memset(ret, 0, size); - *dma_handle = virt_to_phys(ret); - } - return ret; -} - -void dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) -{ - free_pages((unsigned long)vaddr, get_order(size)); -} - -void dma_sync_single_for_device(struct device *dev, dma_addr_t handle, - size_t size, enum dma_data_direction dir) -{ - switch (dir) { - case DMA_TO_DEVICE: - flush_dcache_range(handle, size); - break; - case DMA_FROM_DEVICE: - /* Should be clear already */ - break; - default: - if (printk_ratelimit()) - printk("dma_sync_single_for_device: unsupported dir %u\n", dir); - break; - } -} - -EXPORT_SYMBOL(dma_sync_single_for_device); -dma_addr_t dma_map_single(struct device *dev, void *addr, size_t size, - enum dma_data_direction dir) -{ - dma_addr_t handle = virt_to_phys(addr); - flush_dcache_range(handle, size); - return handle; -} -EXPORT_SYMBOL(dma_map_single); - -dma_addr_t dma_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction dir) -{ - dma_addr_t handle = page_to_phys(page) + offset; - dma_sync_single_for_device(dev, handle, size, dir); - return handle; -} -EXPORT_SYMBOL(dma_map_page); diff --git a/arch/m68knommu/kernel/entry.S b/arch/m68knommu/kernel/entry.S deleted file mode 100644 index 2783f25e38bd..000000000000 --- a/arch/m68knommu/kernel/entry.S +++ /dev/null @@ -1,134 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/entry.S - * - * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, - * Kenneth Albanowski <kjahds@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 (gerg@snapgear.com) - * 5307 fixes by David W. Miller - * linux 2.4 support David McCullough <davidm@snapgear.com> - */ - -#include <linux/sys.h> -#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 - moveq #-1,%d0 - movel %d0,%sp@(PT_OFF_ORIG_D0) - movel %sp,%sp@- /* stack frame pointer argument */ - jsr buserr_c - addql #4,%sp - jra ret_from_exception - -ENTRY(trap) - SAVE_ALL - moveq #-1,%d0 - movel %d0,%sp@(PT_OFF_ORIG_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 - moveq #-1,%d0 - movel %d0,%sp@(PT_OFF_ORIG_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 - diff --git a/arch/m68knommu/kernel/init_task.c b/arch/m68knommu/kernel/init_task.c deleted file mode 100644 index cbf9dc3cc51d..000000000000 --- a/arch/m68knommu/kernel/init_task.c +++ /dev/null @@ -1,36 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/init_task.c - */ -#include <linux/mm.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/init.h> -#include <linux/init_task.h> -#include <linux/fs.h> -#include <linux/mqueue.h> - -#include <asm/uaccess.h> -#include <asm/pgtable.h> - -static struct signal_struct init_signals = INIT_SIGNALS(init_signals); -static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -/* - * Initial task structure. - * - * All other task structs will be allocated on slabs in fork.c - */ -__asm__(".align 4"); -struct task_struct init_task = INIT_TASK(init_task); - -EXPORT_SYMBOL(init_task); - -/* - * Initial thread structure. - * - * We need to make sure that this is 8192-byte aligned due to the - * way process stacks are handled. This is done by having a special - * "init_task" linker map entry.. - */ -union thread_union init_thread_union __init_task_data = - { INIT_THREAD_INFO(init_task) }; - diff --git a/arch/m68knommu/kernel/irq.c b/arch/m68knommu/kernel/irq.c deleted file mode 100644 index c7dd48f37bee..000000000000 --- a/arch/m68knommu/kernel/irq.c +++ /dev/null @@ -1,58 +0,0 @@ -/* - * irq.c - * - * (C) Copyright 2007, Greg Ungerer <gerg@snapgear.com> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -#include <linux/types.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/kernel_stat.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/seq_file.h> -#include <asm/system.h> -#include <asm/traps.h> - -asmlinkage void do_IRQ(int irq, struct pt_regs *regs) -{ - struct pt_regs *oldregs = set_irq_regs(regs); - - irq_enter(); - generic_handle_irq(irq); - irq_exit(); - - set_irq_regs(oldregs); -} - -int show_interrupts(struct seq_file *p, void *v) -{ - struct irqaction *ap; - int irq = *((loff_t *) v); - - if (irq == 0) - seq_puts(p, " CPU0\n"); - - if (irq < NR_IRQS) { - struct irq_desc *desc = irq_to_desc(irq); - - ap = desc->action; - if (ap) { - seq_printf(p, "%3d: ", irq); - seq_printf(p, "%10u ", kstat_irqs(irq)); - seq_printf(p, "%14s ", get_irq_desc_chip(desc)->name); - - seq_printf(p, "%s", ap->name); - for (ap = ap->next; ap; ap = ap->next) - seq_printf(p, ", %s", ap->name); - seq_putc(p, '\n'); - } - } - - return 0; -} - diff --git a/arch/m68knommu/kernel/m68k_ksyms.c b/arch/m68knommu/kernel/m68k_ksyms.c deleted file mode 100644 index 39fe0a7aec32..000000000000 --- a/arch/m68knommu/kernel/m68k_ksyms.c +++ /dev/null @@ -1,78 +0,0 @@ -#include <linux/module.h> -#include <linux/linkage.h> -#include <linux/sched.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/user.h> -#include <linux/elfcore.h> -#include <linux/in6.h> -#include <linux/interrupt.h> - -#include <asm/setup.h> -#include <asm/machdep.h> -#include <asm/pgalloc.h> -#include <asm/irq.h> -#include <asm/io.h> -#include <asm/checksum.h> -#include <asm/current.h> - -extern int dump_fpu(struct pt_regs *, elf_fpregset_t *); - -/* platform dependent support */ - -EXPORT_SYMBOL(__ioremap); -EXPORT_SYMBOL(iounmap); -EXPORT_SYMBOL(dump_fpu); - -EXPORT_SYMBOL(ip_fast_csum); - -EXPORT_SYMBOL(kernel_thread); - -/* Networking helper routines. */ -EXPORT_SYMBOL(csum_partial_copy_nocheck); - -/* The following are special because they're not called - explicitly (the C compiler generates them). Fortunately, - their interface isn't gonna change any time soon now, so - it's OK to leave it out of version control. */ -EXPORT_SYMBOL(memcpy); -EXPORT_SYMBOL(memset); - -/* - * libgcc functions - functions that are used internally by the - * compiler... (prototypes are not correct though, but that - * doesn't really matter since they're not versioned). - */ -extern void __ashldi3(void); -extern void __ashrdi3(void); -extern void __divsi3(void); -extern void __lshrdi3(void); -extern void __modsi3(void); -extern void __muldi3(void); -extern void __mulsi3(void); -extern void __udivsi3(void); -extern void __umodsi3(void); - - /* gcc lib functions */ -EXPORT_SYMBOL(__ashldi3); -EXPORT_SYMBOL(__ashrdi3); -EXPORT_SYMBOL(__divsi3); -EXPORT_SYMBOL(__lshrdi3); -EXPORT_SYMBOL(__modsi3); -EXPORT_SYMBOL(__muldi3); -EXPORT_SYMBOL(__mulsi3); -EXPORT_SYMBOL(__udivsi3); -EXPORT_SYMBOL(__umodsi3); - -#ifdef CONFIG_COLDFIRE -extern unsigned int *dma_device_address; -extern unsigned long dma_base_addr, _ramend; -EXPORT_SYMBOL(dma_base_addr); -EXPORT_SYMBOL(dma_device_address); -EXPORT_SYMBOL(_ramend); - -extern asmlinkage void trap(void); -extern void *_ramvec; -EXPORT_SYMBOL(trap); -EXPORT_SYMBOL(_ramvec); -#endif /* CONFIG_COLDFIRE */ diff --git a/arch/m68knommu/kernel/module.c b/arch/m68knommu/kernel/module.c deleted file mode 100644 index d11ffae7956a..000000000000 --- a/arch/m68knommu/kernel/module.c +++ /dev/null @@ -1,126 +0,0 @@ -#include <linux/moduleloader.h> -#include <linux/elf.h> -#include <linux/vmalloc.h> -#include <linux/fs.h> -#include <linux/string.h> -#include <linux/kernel.h> - -#if 0 -#define DEBUGP printk -#else -#define DEBUGP(fmt...) -#endif - -void *module_alloc(unsigned long size) -{ - if (size == 0) - return NULL; - return vmalloc(size); -} - - -/* Free memory returned from module_alloc */ -void module_free(struct module *mod, void *module_region) -{ - vfree(module_region); -} - -/* We don't need anything special. */ -int module_frob_arch_sections(Elf_Ehdr *hdr, - Elf_Shdr *sechdrs, - char *secstrings, - struct module *mod) -{ - return 0; -} - -int apply_relocate(Elf32_Shdr *sechdrs, - const char *strtab, - unsigned int symindex, - unsigned int relsec, - struct module *me) -{ - unsigned int i; - Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr; - Elf32_Sym *sym; - uint32_t *location; - - DEBUGP("Applying relocate section %u to %u\n", relsec, - sechdrs[relsec].sh_info); - for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { - /* This is where to make the change */ - location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr - + rel[i].r_offset; - /* This is the symbol it is referring to. Note that all - undefined symbols have been resolved. */ - sym = (Elf32_Sym *)sechdrs[symindex].sh_addr - + ELF32_R_SYM(rel[i].r_info); - - switch (ELF32_R_TYPE(rel[i].r_info)) { - case R_68K_32: - /* We add the value into the location given */ - *location += sym->st_value; - break; - case R_68K_PC32: - /* Add the value, subtract its postition */ - *location += sym->st_value - (uint32_t)location; - break; - default: - printk(KERN_ERR "module %s: Unknown relocation: %u\n", - me->name, ELF32_R_TYPE(rel[i].r_info)); - return -ENOEXEC; - } - } - return 0; -} - -int apply_relocate_add(Elf32_Shdr *sechdrs, - const char *strtab, - unsigned int symindex, - unsigned int relsec, - struct module *me) -{ - unsigned int i; - Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr; - Elf32_Sym *sym; - uint32_t *location; - - DEBUGP("Applying relocate_add section %u to %u\n", relsec, - sechdrs[relsec].sh_info); - for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { - /* This is where to make the change */ - location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr - + rel[i].r_offset; - /* This is the symbol it is referring to. Note that all - undefined symbols have been resolved. */ - sym = (Elf32_Sym *)sechdrs[symindex].sh_addr - + ELF32_R_SYM(rel[i].r_info); - - switch (ELF32_R_TYPE(rel[i].r_info)) { - case R_68K_32: - /* We add the value into the location given */ - *location = rel[i].r_addend + sym->st_value; - break; - case R_68K_PC32: - /* Add the value, subtract its postition */ - *location = rel[i].r_addend + sym->st_value - (uint32_t)location; - break; - default: - printk(KERN_ERR "module %s: Unknown relocation: %u\n", - me->name, ELF32_R_TYPE(rel[i].r_info)); - return -ENOEXEC; - } - } - return 0; -} - -int module_finalize(const Elf_Ehdr *hdr, - const Elf_Shdr *sechdrs, - struct module *me) -{ - return 0; -} - -void module_arch_cleanup(struct module *mod) -{ -} diff --git a/arch/m68knommu/kernel/process.c b/arch/m68knommu/kernel/process.c deleted file mode 100644 index e2a63af5d517..000000000000 --- a/arch/m68knommu/kernel/process.c +++ /dev/null @@ -1,404 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/process.c - * - * Copyright (C) 1995 Hamish Macdonald - * - * 68060 fixes by Jesper Skov - * - * uClinux changes - * Copyright (C) 2000-2002, David McCullough <davidm@snapgear.com> - */ - -/* - * This file handles the architecture-dependent parts of process handling.. - */ - -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/stddef.h> -#include <linux/unistd.h> -#include <linux/ptrace.h> -#include <linux/user.h> -#include <linux/interrupt.h> -#include <linux/reboot.h> -#include <linux/fs.h> -#include <linux/slab.h> - -#include <asm/uaccess.h> -#include <asm/system.h> -#include <asm/traps.h> -#include <asm/machdep.h> -#include <asm/setup.h> -#include <asm/pgtable.h> - -asmlinkage void ret_from_fork(void); - -/* - * The following aren't currently used. - */ -void (*pm_idle)(void); -EXPORT_SYMBOL(pm_idle); - -void (*pm_power_off)(void); -EXPORT_SYMBOL(pm_power_off); - -/* - * The idle loop on an m68knommu.. - */ -static void default_idle(void) -{ - local_irq_disable(); - while (!need_resched()) { - /* This stop will re-enable interrupts */ - __asm__("stop #0x2000" : : : "cc"); - local_irq_disable(); - } - local_irq_enable(); -} - -void (*idle)(void) = default_idle; - -/* - * The idle thread. There's no useful work to be - * done, so just try to conserve power and have a - * low exit latency (ie sit in a loop waiting for - * somebody to say that they'd like to reschedule) - */ -void cpu_idle(void) -{ - /* endless idle loop with no priority at all */ - while (1) { - idle(); - preempt_enable_no_resched(); - schedule(); - preempt_disable(); - } -} - -void machine_restart(char * __unused) -{ - if (mach_reset) - mach_reset(); - for (;;); -} - -void machine_halt(void) -{ - if (mach_halt) - mach_halt(); - for (;;); -} - -void machine_power_off(void) -{ - if (mach_power_off) - mach_power_off(); - for (;;); -} - -void show_regs(struct pt_regs * regs) -{ - printk(KERN_NOTICE "\n"); - printk(KERN_NOTICE "Format %02x Vector: %04x PC: %08lx Status: %04x %s\n", - regs->format, regs->vector, regs->pc, regs->sr, print_tainted()); - printk(KERN_NOTICE "ORIG_D0: %08lx D0: %08lx A2: %08lx A1: %08lx\n", - regs->orig_d0, regs->d0, regs->a2, regs->a1); - printk(KERN_NOTICE "A0: %08lx D5: %08lx D4: %08lx\n", - regs->a0, regs->d5, regs->d4); - printk(KERN_NOTICE "D3: %08lx D2: %08lx D1: %08lx\n", - regs->d3, regs->d2, regs->d1); - if (!(regs->sr & PS_S)) - printk(KERN_NOTICE "USP: %08lx\n", rdusp()); -} - -/* - * Create a kernel thread - */ -int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) -{ - int retval; - long clone_arg = flags | CLONE_VM; - mm_segment_t fs; - - fs = get_fs(); - set_fs(KERNEL_DS); - - __asm__ __volatile__ ( - "movel %%sp, %%d2\n\t" - "movel %5, %%d1\n\t" - "movel %1, %%d0\n\t" - "trap #0\n\t" - "cmpl %%sp, %%d2\n\t" - "jeq 1f\n\t" - "movel %3, %%sp@-\n\t" - "jsr %4@\n\t" - "movel %2, %%d0\n\t" - "trap #0\n" - "1:\n\t" - "movel %%d0, %0\n" - : "=d" (retval) - : "i" (__NR_clone), - "i" (__NR_exit), - "a" (arg), - "a" (fn), - "a" (clone_arg) - : "cc", "%d0", "%d1", "%d2"); - - set_fs(fs); - return retval; -} - -void flush_thread(void) -{ -#ifdef CONFIG_FPU - unsigned long zero = 0; -#endif - set_fs(USER_DS); - current->thread.fs = __USER_DS; -#ifdef CONFIG_FPU - if (!FPU_IS_EMU) - asm volatile (".chip 68k/68881\n\t" - "frestore %0@\n\t" - ".chip 68k" : : "a" (&zero)); -#endif -} - -/* - * "m68k_fork()".. By the time we get here, the - * non-volatile registers have also been saved on the - * stack. We do some ugly pointer stuff here.. (see - * also copy_thread) - */ - -asmlinkage int m68k_fork(struct pt_regs *regs) -{ - /* fork almost works, enough to trick you into looking elsewhere :-( */ - return(-EINVAL); -} - -asmlinkage int m68k_vfork(struct pt_regs *regs) -{ - return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), regs, 0, NULL, NULL); -} - -asmlinkage int m68k_clone(struct pt_regs *regs) -{ - unsigned long clone_flags; - unsigned long newsp; - - /* syscall2 puts clone_flags in d1 and usp in d2 */ - clone_flags = regs->d1; - newsp = regs->d2; - if (!newsp) - newsp = rdusp(); - return do_fork(clone_flags, newsp, regs, 0, NULL, NULL); -} - -int copy_thread(unsigned long clone_flags, - unsigned long usp, unsigned long topstk, - struct task_struct * p, struct pt_regs * regs) -{ - struct pt_regs * childregs; - struct switch_stack * childstack, *stack; - unsigned long *retp; - - childregs = (struct pt_regs *) (task_stack_page(p) + THREAD_SIZE) - 1; - - *childregs = *regs; - childregs->d0 = 0; - - retp = ((unsigned long *) regs); - stack = ((struct switch_stack *) retp) - 1; - - childstack = ((struct switch_stack *) childregs) - 1; - *childstack = *stack; - childstack->retpc = (unsigned long)ret_from_fork; - - p->thread.usp = usp; - p->thread.ksp = (unsigned long)childstack; - - if (clone_flags & CLONE_SETTLS) - task_thread_info(p)->tp_value = regs->d5; - - /* - * Must save the current SFC/DFC value, NOT the value when - * the parent was last descheduled - RGH 10-08-96 - */ - p->thread.fs = get_fs().seg; - -#ifdef CONFIG_FPU - if (!FPU_IS_EMU) { - /* Copy the current fpu state */ - asm volatile ("fsave %0" : : "m" (p->thread.fpstate[0]) : "memory"); - - if (p->thread.fpstate[0]) - asm volatile ("fmovemx %/fp0-%/fp7,%0\n\t" - "fmoveml %/fpiar/%/fpcr/%/fpsr,%1" - : : "m" (p->thread.fp[0]), "m" (p->thread.fpcntl[0]) - : "memory"); - /* Restore the state in case the fpu was busy */ - asm volatile ("frestore %0" : : "m" (p->thread.fpstate[0])); - } -#endif - - return 0; -} - -/* Fill in the fpu structure for a core dump. */ - -int dump_fpu(struct pt_regs *regs, struct user_m68kfp_struct *fpu) -{ -#ifdef CONFIG_FPU - char fpustate[216]; - - if (FPU_IS_EMU) { - int i; - - memcpy(fpu->fpcntl, current->thread.fpcntl, 12); - memcpy(fpu->fpregs, current->thread.fp, 96); - /* Convert internal fpu reg representation - * into long double format - */ - for (i = 0; i < 24; i += 3) - fpu->fpregs[i] = ((fpu->fpregs[i] & 0xffff0000) << 15) | - ((fpu->fpregs[i] & 0x0000ffff) << 16); - return 1; - } - - /* First dump the fpu context to avoid protocol violation. */ - asm volatile ("fsave %0" :: "m" (fpustate[0]) : "memory"); - if (!fpustate[0]) - return 0; - - asm volatile ("fmovem %/fpiar/%/fpcr/%/fpsr,%0" - :: "m" (fpu->fpcntl[0]) - : "memory"); - asm volatile ("fmovemx %/fp0-%/fp7,%0" - :: "m" (fpu->fpregs[0]) - : "memory"); -#endif - return 1; -} - -/* - * Generic dumping code. Used for panic and debug. - */ -void dump(struct pt_regs *fp) -{ - unsigned long *sp; - unsigned char *tp; - int i; - - printk(KERN_EMERG "\nCURRENT PROCESS:\n\n"); - printk(KERN_EMERG "COMM=%s PID=%d\n", current->comm, current->pid); - - if (current->mm) { - printk(KERN_EMERG "TEXT=%08x-%08x DATA=%08x-%08x BSS=%08x-%08x\n", - (int) current->mm->start_code, - (int) current->mm->end_code, - (int) current->mm->start_data, - (int) current->mm->end_data, - (int) current->mm->end_data, - (int) current->mm->brk); - printk(KERN_EMERG "USER-STACK=%08x KERNEL-STACK=%08x\n\n", - (int) current->mm->start_stack, - (int)(((unsigned long) current) + THREAD_SIZE)); - } - - printk(KERN_EMERG "PC: %08lx\n", fp->pc); - printk(KERN_EMERG "SR: %08lx SP: %08lx\n", (long) fp->sr, (long) fp); - printk(KERN_EMERG "d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n", - fp->d0, fp->d1, fp->d2, fp->d3); - printk(KERN_EMERG "d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n", - fp->d4, fp->d5, fp->a0, fp->a1); - printk(KERN_EMERG "\nUSP: %08x TRAPFRAME: %p\n", - (unsigned int) rdusp(), fp); - - printk(KERN_EMERG "\nCODE:"); - tp = ((unsigned char *) fp->pc) - 0x20; - for (sp = (unsigned long *) tp, i = 0; (i < 0x40); i += 4) { - if ((i % 0x10) == 0) - printk(KERN_EMERG "%p: ", tp + i); - printk("%08x ", (int) *sp++); - } - printk(KERN_EMERG "\n"); - - printk(KERN_EMERG "KERNEL STACK:"); - tp = ((unsigned char *) fp) - 0x40; - for (sp = (unsigned long *) tp, i = 0; (i < 0xc0); i += 4) { - if ((i % 0x10) == 0) - printk(KERN_EMERG "%p: ", tp + i); - printk("%08x ", (int) *sp++); - } - printk(KERN_EMERG "\n"); - - printk(KERN_EMERG "USER STACK:"); - tp = (unsigned char *) (rdusp() - 0x10); - for (sp = (unsigned long *) tp, i = 0; (i < 0x80); i += 4) { - if ((i % 0x10) == 0) - printk(KERN_EMERG "%p: ", tp + i); - printk("%08x ", (int) *sp++); - } - printk(KERN_EMERG "\n"); -} - -/* - * sys_execve() executes a new program. - */ -asmlinkage int sys_execve(const char *name, - const char *const *argv, - const char *const *envp) -{ - int error; - char * filename; - struct pt_regs *regs = (struct pt_regs *) &name; - - filename = getname(name); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - return error; - error = do_execve(filename, argv, envp, regs); - putname(filename); - return error; -} - -unsigned long get_wchan(struct task_struct *p) -{ - unsigned long fp, pc; - unsigned long stack_page; - int count = 0; - if (!p || p == current || p->state == TASK_RUNNING) - return 0; - - stack_page = (unsigned long)p; - fp = ((struct switch_stack *)p->thread.ksp)->a6; - do { - if (fp < stack_page+sizeof(struct thread_info) || - fp >= THREAD_SIZE-8+stack_page) - return 0; - pc = ((unsigned long *)fp)[1]; - if (!in_sched_functions(pc)) - return pc; - fp = *(unsigned long *) fp; - } while (count++ < 16); - return 0; -} - -/* - * Return saved PC of a blocked thread. - */ -unsigned long thread_saved_pc(struct task_struct *tsk) -{ - struct switch_stack *sw = (struct switch_stack *)tsk->thread.ksp; - - /* Check whether the thread is blocked in resume() */ - if (in_sched_functions(sw->retpc)) - return ((unsigned long *)sw->a6)[1]; - else - return sw->retpc; -} - diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68knommu/kernel/ptrace.c deleted file mode 100644 index 6709fb707335..000000000000 --- a/arch/m68knommu/kernel/ptrace.c +++ /dev/null @@ -1,255 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/ptrace.c - * - * Copyright (C) 1994 by Hamish Macdonald - * Taken from linux/kernel/ptrace.c and modified for M680x0. - * linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of - * this archive for more details. - */ - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/errno.h> -#include <linux/ptrace.h> -#include <linux/user.h> -#include <linux/signal.h> -#include <linux/tracehook.h> - -#include <asm/uaccess.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/system.h> -#include <asm/processor.h> - -/* - * does not yet catch signals sent when the child dies. - * in exit.c or in signal.c. - */ - -/* determines which bits in the SR the user has access to. */ -/* 1 = access 0 = no access */ -#define SR_MASK 0x001f - -/* sets the trace bits. */ -#define TRACE_BITS 0x8000 - -/* Find the stack offset for a register, relative to thread.esp0. */ -#define PT_REG(reg) ((long)&((struct pt_regs *)0)->reg) -#define SW_REG(reg) ((long)&((struct switch_stack *)0)->reg \ - - sizeof(struct switch_stack)) -/* Mapping from PT_xxx to the stack offset at which the register is - saved. Notice that usp has no stack-slot and needs to be treated - specially (see get_reg/put_reg below). */ -static int regoff[] = { - PT_REG(d1), PT_REG(d2), PT_REG(d3), PT_REG(d4), - PT_REG(d5), SW_REG(d6), SW_REG(d7), PT_REG(a0), - PT_REG(a1), PT_REG(a2), SW_REG(a3), SW_REG(a4), - SW_REG(a5), SW_REG(a6), PT_REG(d0), -1, - PT_REG(orig_d0), PT_REG(sr), PT_REG(pc), -}; - -/* - * Get contents of register REGNO in task TASK. - */ -static inline long get_reg(struct task_struct *task, int regno) -{ - unsigned long *addr; - - if (regno == PT_USP) - addr = &task->thread.usp; - else if (regno < ARRAY_SIZE(regoff)) - addr = (unsigned long *)(task->thread.esp0 + regoff[regno]); - else - return 0; - return *addr; -} - -/* - * Write contents of register REGNO in task TASK. - */ -static inline int put_reg(struct task_struct *task, int regno, - unsigned long data) -{ - unsigned long *addr; - - if (regno == PT_USP) - addr = &task->thread.usp; - else if (regno < ARRAY_SIZE(regoff)) - addr = (unsigned long *) (task->thread.esp0 + regoff[regno]); - else - return -1; - *addr = data; - return 0; -} - -void user_enable_single_step(struct task_struct *task) -{ - unsigned long srflags; - srflags = get_reg(task, PT_SR) | (TRACE_BITS << 16); - put_reg(task, PT_SR, srflags); -} - -void user_disable_single_step(struct task_struct *task) -{ - unsigned long srflags; - srflags = get_reg(task, PT_SR) & ~(TRACE_BITS << 16); - put_reg(task, PT_SR, srflags); -} - -/* - * Called by kernel/ptrace.c when detaching.. - * - * Make sure the single step bit is not set. - */ -void ptrace_disable(struct task_struct *child) -{ - /* make sure the single step bit is not set. */ - user_disable_single_step(child); -} - -long arch_ptrace(struct task_struct *child, long request, - unsigned long addr, unsigned long data) -{ - int ret; - int regno = addr >> 2; - unsigned long __user *datap = (unsigned long __user *) data; - - switch (request) { - /* read the word at location addr in the USER area. */ - case PTRACE_PEEKUSR: { - unsigned long tmp; - - ret = -EIO; - if ((addr & 3) || addr > sizeof(struct user) - 3) - break; - - tmp = 0; /* Default return condition */ - ret = -EIO; - if (regno < 19) { - tmp = get_reg(child, regno); - if (regno == PT_SR) - tmp >>= 16; - } else if (regno >= 21 && regno < 49) { - tmp = child->thread.fp[regno - 21]; - } else if (regno == 49) { - tmp = child->mm->start_code; - } else if (regno == 50) { - tmp = child->mm->start_data; - } else if (regno == 51) { - tmp = child->mm->end_code; - } else - break; - ret = put_user(tmp, datap); - break; - } - - case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ - ret = -EIO; - if ((addr & 3) || addr > sizeof(struct user) - 3) - break; - - if (regno == PT_SR) { - data &= SR_MASK; - data <<= 16; - data |= get_reg(child, PT_SR) & ~(SR_MASK << 16); - } - if (regno < 19) { - if (put_reg(child, regno, data)) - break; - ret = 0; - break; - } - if (regno >= 21 && regno < 48) - { - child->thread.fp[regno - 21] = data; - ret = 0; - } - break; - - case PTRACE_GETREGS: { /* Get all gp regs from the child. */ - int i; - unsigned long tmp; - for (i = 0; i < 19; i++) { - tmp = get_reg(child, i); - if (i == PT_SR) - tmp >>= 16; - if (put_user(tmp, datap)) { - ret = -EFAULT; - break; - } - datap++; - } - ret = 0; - break; - } - - case PTRACE_SETREGS: { /* Set all gp regs in the child. */ - int i; - unsigned long tmp; - for (i = 0; i < 19; i++) { - if (get_user(tmp, datap)) { - ret = -EFAULT; - break; - } - if (i == PT_SR) { - tmp &= SR_MASK; - tmp <<= 16; - tmp |= get_reg(child, PT_SR) & ~(SR_MASK << 16); - } - put_reg(child, i, tmp); - datap++; - } - ret = 0; - break; - } - -#ifdef PTRACE_GETFPREGS - case PTRACE_GETFPREGS: { /* Get the child FPU state. */ - ret = 0; - if (copy_to_user(datap, &child->thread.fp, - sizeof(struct user_m68kfp_struct))) - ret = -EFAULT; - break; - } -#endif - -#ifdef PTRACE_SETFPREGS - case PTRACE_SETFPREGS: { /* Set the child FPU state. */ - ret = 0; - if (copy_from_user(&child->thread.fp, datap, - sizeof(struct user_m68kfp_struct))) - ret = -EFAULT; - break; - } -#endif - - case PTRACE_GET_THREAD_AREA: - ret = put_user(task_thread_info(child)->tp_value, datap); - break; - - default: - ret = ptrace_request(child, request, addr, data); - break; - } - return ret; -} - -asmlinkage int syscall_trace_enter(void) -{ - int ret = 0; - - if (test_thread_flag(TIF_SYSCALL_TRACE)) - ret = tracehook_report_syscall_entry(task_pt_regs(current)); - return ret; -} - -asmlinkage void syscall_trace_leave(void) -{ - if (test_thread_flag(TIF_SYSCALL_TRACE)) - tracehook_report_syscall_exit(task_pt_regs(current), 0); -} diff --git a/arch/m68knommu/kernel/setup.c b/arch/m68knommu/kernel/setup.c deleted file mode 100644 index 16b2de7f5101..000000000000 --- a/arch/m68knommu/kernel/setup.c +++ /dev/null @@ -1,317 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/setup.c - * - * Copyright (C) 1999-2007 Greg Ungerer (gerg@snapgear.com) - * Copyright (C) 1998,1999 D. Jeff Dionne <jeff@uClinux.org> - * Copyleft ()) 2000 James D. Schettine {james@telos-systems.com} - * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com> - * Copyright (C) 1995 Hamish Macdonald - * Copyright (C) 2000 Lineo Inc. (www.lineo.com) - * Copyright (C) 2001 Lineo, Inc. <www.lineo.com> - * - * 68VZ328 Fixes/support Evan Stawnyczy <e@lineo.ca> - */ - -/* - * This file handles the architecture-dependent parts of system setup - */ - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include <linux/fb.h> -#include <linux/module.h> -#include <linux/mm.h> -#include <linux/console.h> -#include <linux/errno.h> -#include <linux/string.h> -#include <linux/bootmem.h> -#include <linux/seq_file.h> -#include <linux/init.h> -#include <linux/initrd.h> -#include <linux/root_dev.h> - -#include <asm/setup.h> -#include <asm/irq.h> -#include <asm/machdep.h> -#include <asm/pgtable.h> - -unsigned long memory_start; -unsigned long memory_end; - -EXPORT_SYMBOL(memory_start); -EXPORT_SYMBOL(memory_end); - -char __initdata command_line[COMMAND_LINE_SIZE]; - -/* machine dependent timer functions */ -void (*mach_gettod)(int*, int*, int*, int*, int*, int*); -int (*mach_set_clock_mmss)(unsigned long); - -/* machine dependent reboot functions */ -void (*mach_reset)(void); -void (*mach_halt)(void); -void (*mach_power_off)(void); - -#ifdef CONFIG_M68328 -#define CPU_NAME "MC68328" -#endif -#ifdef CONFIG_M68EZ328 -#define CPU_NAME "MC68EZ328" -#endif -#ifdef CONFIG_M68VZ328 -#define CPU_NAME "MC68VZ328" -#endif -#ifdef CONFIG_M68360 -#define CPU_NAME "MC68360" -#endif -#ifndef CPU_NAME -#define CPU_NAME "UNKNOWN" -#endif - -/* - * Different cores have different instruction execution timings. - * The old/traditional 68000 cores are basically all the same, at 16. - * The ColdFire cores vary a little, their values are defined in their - * headers. We default to the standard 68000 value here. - */ -#ifndef CPU_INSTR_PER_JIFFY -#define CPU_INSTR_PER_JIFFY 16 -#endif - -extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end; -extern int _ramstart, _ramend; - -#if defined(CONFIG_UBOOT) -/* - * parse_uboot_commandline - * - * Copies u-boot commandline arguments and store them in the proper linux - * variables. - * - * Assumes: - * _init_sp global contains the address in the stack pointer when the - * kernel starts (see head.S::_start) - * - * U-Boot calling convention: - * (*kernel) (kbd, initrd_start, initrd_end, cmd_start, cmd_end); - * - * _init_sp can be parsed as such - * - * _init_sp+00 = u-boot cmd after jsr into kernel (skip) - * _init_sp+04 = &kernel board_info (residual data) - * _init_sp+08 = &initrd_start - * _init_sp+12 = &initrd_end - * _init_sp+16 = &cmd_start - * _init_sp+20 = &cmd_end - * - * This also assumes that the memory locations pointed to are still - * unmodified. U-boot places them near the end of external SDRAM. - * - * Argument(s): - * commandp = the linux commandline arg container to fill. - * size = the sizeof commandp. - * - * Returns: - */ -void parse_uboot_commandline(char *commandp, int size) -{ - extern unsigned long _init_sp; - unsigned long *sp; - unsigned long uboot_kbd; - unsigned long uboot_initrd_start, uboot_initrd_end; - unsigned long uboot_cmd_start, uboot_cmd_end; - - - sp = (unsigned long *)_init_sp; - uboot_kbd = sp[1]; - uboot_initrd_start = sp[2]; - uboot_initrd_end = sp[3]; - uboot_cmd_start = sp[4]; - uboot_cmd_end = sp[5]; - - if (uboot_cmd_start && uboot_cmd_end) - strncpy(commandp, (const char *)uboot_cmd_start, size); -#if defined(CONFIG_BLK_DEV_INITRD) - if (uboot_initrd_start && uboot_initrd_end && - (uboot_initrd_end > uboot_initrd_start)) { - initrd_start = uboot_initrd_start; - initrd_end = uboot_initrd_end; - ROOT_DEV = Root_RAM0; - printk(KERN_INFO "initrd at 0x%lx:0x%lx\n", - initrd_start, initrd_end); - } -#endif /* if defined(CONFIG_BLK_DEV_INITRD) */ -} -#endif /* #if defined(CONFIG_UBOOT) */ - -void __init setup_arch(char **cmdline_p) -{ - int bootmap_size; - - memory_start = PAGE_ALIGN(_ramstart); - memory_end = _ramend; - - init_mm.start_code = (unsigned long) &_stext; - init_mm.end_code = (unsigned long) &_etext; - init_mm.end_data = (unsigned long) &_edata; - init_mm.brk = (unsigned long) 0; - - config_BSP(&command_line[0], sizeof(command_line)); - -#if defined(CONFIG_BOOTPARAM) - strncpy(&command_line[0], CONFIG_BOOTPARAM_STRING, sizeof(command_line)); - command_line[sizeof(command_line) - 1] = 0; -#endif /* CONFIG_BOOTPARAM */ - -#if defined(CONFIG_UBOOT) - /* CONFIG_UBOOT and CONFIG_BOOTPARAM defined, concatenate cmdline */ - #if defined(CONFIG_BOOTPARAM) - /* Add the whitespace separator */ - command_line[strlen(CONFIG_BOOTPARAM_STRING)] = ' '; - /* Parse uboot command line into the rest of the buffer */ - parse_uboot_commandline( - &command_line[(strlen(CONFIG_BOOTPARAM_STRING)+1)], - (sizeof(command_line) - - (strlen(CONFIG_BOOTPARAM_STRING)+1))); - /* Only CONFIG_UBOOT defined, create cmdline */ - #else - parse_uboot_commandline(&command_line[0], sizeof(command_line)); - #endif /* CONFIG_BOOTPARAM */ - command_line[sizeof(command_line) - 1] = 0; -#endif /* CONFIG_UBOOT */ - - printk(KERN_INFO "\x0F\r\n\nuClinux/" CPU_NAME "\n"); - -#ifdef CONFIG_UCDIMM - printk(KERN_INFO "uCdimm by Lineo, Inc. <www.lineo.com>\n"); -#endif -#ifdef CONFIG_M68VZ328 - printk(KERN_INFO "M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n"); -#endif -#ifdef CONFIG_COLDFIRE - printk(KERN_INFO "COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n"); -#ifdef CONFIG_M5307 - printk(KERN_INFO "Modified for M5307 by Dave Miller, dmiller@intellistor.com\n"); -#endif -#ifdef CONFIG_ELITE - printk(KERN_INFO "Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n"); -#endif -#endif - printk(KERN_INFO "Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n"); - -#if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 ) - printk(KERN_INFO "TRG SuperPilot FLASH card support <info@trgnet.com>\n"); -#endif -#if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 ) - printk(KERN_INFO "PalmV support by Lineo Inc. <jeff@uclinux.com>\n"); -#endif -#if defined (CONFIG_M68360) - printk(KERN_INFO "QUICC port done by SED Systems <hamilton@sedsystems.ca>,\n"); - printk(KERN_INFO "based on 2.0.38 port by Lineo Inc. <mleslie@lineo.com>.\n"); -#endif -#ifdef CONFIG_DRAGEN2 - printk(KERN_INFO "DragonEngine II board support by Georges Menie\n"); -#endif -#ifdef CONFIG_M5235EVB - printk(KERN_INFO "Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)\n"); -#endif - - pr_debug("KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x " - "BSS=0x%06x-0x%06x\n", (int) &_stext, (int) &_etext, - (int) &_sdata, (int) &_edata, - (int) &_sbss, (int) &_ebss); - pr_debug("MEMORY -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x\n ", - (int) &_ebss, (int) memory_start, - (int) memory_start, (int) memory_end); - - /* Keep a copy of command line */ - *cmdline_p = &command_line[0]; - memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE); - boot_command_line[COMMAND_LINE_SIZE-1] = 0; - -#if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE) - conswitchp = &dummy_con; -#endif - - /* - * Give all the memory to the bootmap allocator, tell it to put the - * boot mem_map at the start of memory. - */ - bootmap_size = init_bootmem_node( - NODE_DATA(0), - memory_start >> PAGE_SHIFT, /* map goes here */ - PAGE_OFFSET >> PAGE_SHIFT, /* 0 on coldfire */ - memory_end >> PAGE_SHIFT); - /* - * Free the usable memory, we have to make sure we do not free - * the bootmem bitmap so we then reserve it after freeing it :-) - */ - free_bootmem(memory_start, memory_end - memory_start); - reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT); - -#if defined(CONFIG_UBOOT) && defined(CONFIG_BLK_DEV_INITRD) - if ((initrd_start > 0) && (initrd_start < initrd_end) && - (initrd_end < memory_end)) - reserve_bootmem(initrd_start, initrd_end - initrd_start, - BOOTMEM_DEFAULT); -#endif /* if defined(CONFIG_BLK_DEV_INITRD) */ - - /* - * Get kmalloc into gear. - */ - paging_init(); -} - -/* - * Get CPU information for use by the procfs. - */ -static int show_cpuinfo(struct seq_file *m, void *v) -{ - char *cpu, *mmu, *fpu; - u_long clockfreq; - - cpu = CPU_NAME; - mmu = "none"; - fpu = "none"; - clockfreq = (loops_per_jiffy * HZ) * CPU_INSTR_PER_JIFFY; - - seq_printf(m, "CPU:\t\t%s\n" - "MMU:\t\t%s\n" - "FPU:\t\t%s\n" - "Clocking:\t%lu.%1luMHz\n" - "BogoMips:\t%lu.%02lu\n" - "Calibration:\t%lu loops\n", - cpu, mmu, fpu, - clockfreq / 1000000, - (clockfreq / 100000) % 10, - (loops_per_jiffy * HZ) / 500000, - ((loops_per_jiffy * HZ) / 5000) % 100, - (loops_per_jiffy * HZ)); - - return 0; -} - -static void *c_start(struct seq_file *m, loff_t *pos) -{ - return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL; -} - -static void *c_next(struct seq_file *m, void *v, loff_t *pos) -{ - ++*pos; - return c_start(m, pos); -} - -static void c_stop(struct seq_file *m, void *v) -{ -} - -const struct seq_operations cpuinfo_op = { - .start = c_start, - .next = c_next, - .stop = c_stop, - .show = show_cpuinfo, -}; - diff --git a/arch/m68knommu/kernel/signal.c b/arch/m68knommu/kernel/signal.c deleted file mode 100644 index 36a81bb6835a..000000000000 --- a/arch/m68knommu/kernel/signal.c +++ /dev/null @@ -1,765 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/signal.c - * - * Copyright (C) 1991, 1992 Linus Torvalds - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -/* - * Linux/m68k support by Hamish Macdonald - * - * 68060 fixes by Jesper Skov - * - * 1997-12-01 Modified for POSIX.1b signals by Andreas Schwab - * - * mathemu support by Roman Zippel - * (Note: fpstate in the signal context is completely ignored for the emulator - * and the internal floating point format is put on stack) - */ - -/* - * ++roman (07/09/96): implemented signal stacks (specially for tosemu on - * Atari :-) Current limitation: Only one sigstack can be active at one time. - * If a second signal with SA_ONSTACK set arrives while working on a sigstack, - * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested - * signal handlers! - */ - -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/kernel.h> -#include <linux/signal.h> -#include <linux/syscalls.h> -#include <linux/errno.h> -#include <linux/wait.h> -#include <linux/ptrace.h> -#include <linux/unistd.h> -#include <linux/stddef.h> -#include <linux/highuid.h> -#include <linux/tty.h> -#include <linux/personality.h> -#include <linux/binfmts.h> - -#include <asm/setup.h> -#include <asm/uaccess.h> -#include <asm/pgtable.h> -#include <asm/traps.h> -#include <asm/ucontext.h> - -#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) - -void ret_from_user_signal(void); -void ret_from_user_rt_signal(void); - -/* - * Atomically swap in the new signal mask, and wait for a signal. - */ -asmlinkage int -sys_sigsuspend(int unused0, int unused1, old_sigset_t mask) -{ - mask &= _BLOCKABLE; - spin_lock_irq(¤t->sighand->siglock); - current->saved_sigmask = current->blocked; - siginitset(¤t->blocked, mask); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - current->state = TASK_INTERRUPTIBLE; - schedule(); - set_restore_sigmask(); - - return -ERESTARTNOHAND; -} - -asmlinkage int -sys_sigaction(int sig, const struct old_sigaction __user *act, - struct old_sigaction __user *oact) -{ - struct k_sigaction new_ka, old_ka; - int ret; - - if (act) { - old_sigset_t mask; - if (!access_ok(VERIFY_READ, act, sizeof(*act)) || - __get_user(new_ka.sa.sa_handler, &act->sa_handler) || - __get_user(new_ka.sa.sa_restorer, &act->sa_restorer) || - __get_user(new_ka.sa.sa_flags, &act->sa_flags) || - __get_user(mask, &act->sa_mask)) - return -EFAULT; - siginitset(&new_ka.sa.sa_mask, mask); - } - - ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); - - if (!ret && oact) { - if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) || - __put_user(old_ka.sa.sa_handler, &oact->sa_handler) || - __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer) || - __put_user(old_ka.sa.sa_flags, &oact->sa_flags) || - __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask)) - return -EFAULT; - } - - return ret; -} - -asmlinkage int -sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss) -{ - return do_sigaltstack(uss, uoss, rdusp()); -} - - -/* - * Do a signal return; undo the signal stack. - * - * Keep the return code on the stack quadword aligned! - * That makes the cache flush below easier. - */ - -struct sigframe -{ - char __user *pretcode; - int sig; - int code; - struct sigcontext __user *psc; - char retcode[8]; - unsigned long extramask[_NSIG_WORDS-1]; - struct sigcontext sc; -}; - -struct rt_sigframe -{ - char __user *pretcode; - int sig; - struct siginfo __user *pinfo; - void __user *puc; - char retcode[8]; - struct siginfo info; - struct ucontext uc; -}; - -#ifdef CONFIG_FPU - -static unsigned char fpu_version = 0; /* version number of fpu, set by setup_frame */ - -static inline int restore_fpu_state(struct sigcontext *sc) -{ - int err = 1; - - if (FPU_IS_EMU) { - /* restore registers */ - memcpy(current->thread.fpcntl, sc->sc_fpcntl, 12); - memcpy(current->thread.fp, sc->sc_fpregs, 24); - return 0; - } - - if (sc->sc_fpstate[0]) { - /* Verify the frame format. */ - if (sc->sc_fpstate[0] != fpu_version) - goto out; - - __asm__ volatile (".chip 68k/68881\n\t" - "fmovemx %0,%%fp0-%%fp1\n\t" - "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t" - ".chip 68k" - : /* no outputs */ - : "m" (*sc->sc_fpregs), "m" (*sc->sc_fpcntl)); - } - __asm__ volatile (".chip 68k/68881\n\t" - "frestore %0\n\t" - ".chip 68k" : : "m" (*sc->sc_fpstate)); - err = 0; - -out: - return err; -} - -#define FPCONTEXT_SIZE 216 -#define uc_fpstate uc_filler[0] -#define uc_formatvec uc_filler[FPCONTEXT_SIZE/4] -#define uc_extra uc_filler[FPCONTEXT_SIZE/4+1] - -static inline int rt_restore_fpu_state(struct ucontext __user *uc) -{ - unsigned char fpstate[FPCONTEXT_SIZE]; - int context_size = 0; - fpregset_t fpregs; - int err = 1; - - if (FPU_IS_EMU) { - /* restore fpu control register */ - if (__copy_from_user(current->thread.fpcntl, - uc->uc_mcontext.fpregs.f_fpcntl, 12)) - goto out; - /* restore all other fpu register */ - if (__copy_from_user(current->thread.fp, - uc->uc_mcontext.fpregs.f_fpregs, 96)) - goto out; - return 0; - } - - if (__get_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate)) - goto out; - if (fpstate[0]) { - context_size = fpstate[1]; - - /* Verify the frame format. */ - if (fpstate[0] != fpu_version) - goto out; - if (__copy_from_user(&fpregs, &uc->uc_mcontext.fpregs, - sizeof(fpregs))) - goto out; - __asm__ volatile (".chip 68k/68881\n\t" - "fmovemx %0,%%fp0-%%fp7\n\t" - "fmoveml %1,%%fpcr/%%fpsr/%%fpiar\n\t" - ".chip 68k" - : /* no outputs */ - : "m" (*fpregs.f_fpregs), - "m" (*fpregs.f_fpcntl)); - } - if (context_size && - __copy_from_user(fpstate + 4, (long __user *)&uc->uc_fpstate + 1, - context_size)) - goto out; - __asm__ volatile (".chip 68k/68881\n\t" - "frestore %0\n\t" - ".chip 68k" : : "m" (*fpstate)); - err = 0; - -out: - return err; -} - -#endif - -static inline int -restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *usc, void __user *fp, - int *pd0) -{ - int formatvec; - struct sigcontext context; - int err = 0; - - /* Always make any pending restarted system calls return -EINTR */ - current_thread_info()->restart_block.fn = do_no_restart_syscall; - - /* get previous context */ - if (copy_from_user(&context, usc, sizeof(context))) - goto badframe; - - /* restore passed registers */ - regs->d1 = context.sc_d1; - regs->a0 = context.sc_a0; - regs->a1 = context.sc_a1; - ((struct switch_stack *)regs - 1)->a5 = context.sc_a5; - regs->sr = (regs->sr & 0xff00) | (context.sc_sr & 0xff); - regs->pc = context.sc_pc; - regs->orig_d0 = -1; /* disable syscall checks */ - wrusp(context.sc_usp); - formatvec = context.sc_formatvec; - regs->format = formatvec >> 12; - regs->vector = formatvec & 0xfff; - -#ifdef CONFIG_FPU - err = restore_fpu_state(&context); -#endif - - *pd0 = context.sc_d0; - return err; - -badframe: - return 1; -} - -static inline int -rt_restore_ucontext(struct pt_regs *regs, struct switch_stack *sw, - struct ucontext __user *uc, int *pd0) -{ - int temp; - greg_t __user *gregs = uc->uc_mcontext.gregs; - unsigned long usp; - int err; - - /* Always make any pending restarted system calls return -EINTR */ - current_thread_info()->restart_block.fn = do_no_restart_syscall; - - err = __get_user(temp, &uc->uc_mcontext.version); - if (temp != MCONTEXT_VERSION) - goto badframe; - /* restore passed registers */ - err |= __get_user(regs->d0, &gregs[0]); - err |= __get_user(regs->d1, &gregs[1]); - err |= __get_user(regs->d2, &gregs[2]); - err |= __get_user(regs->d3, &gregs[3]); - err |= __get_user(regs->d4, &gregs[4]); - err |= __get_user(regs->d5, &gregs[5]); - err |= __get_user(sw->d6, &gregs[6]); - err |= __get_user(sw->d7, &gregs[7]); - err |= __get_user(regs->a0, &gregs[8]); - err |= __get_user(regs->a1, &gregs[9]); - err |= __get_user(regs->a2, &gregs[10]); - err |= __get_user(sw->a3, &gregs[11]); - err |= __get_user(sw->a4, &gregs[12]); - err |= __get_user(sw->a5, &gregs[13]); - err |= __get_user(sw->a6, &gregs[14]); - err |= __get_user(usp, &gregs[15]); - wrusp(usp); - err |= __get_user(regs->pc, &gregs[16]); - err |= __get_user(temp, &gregs[17]); - regs->sr = (regs->sr & 0xff00) | (temp & 0xff); - regs->orig_d0 = -1; /* disable syscall checks */ - regs->format = temp >> 12; - regs->vector = temp & 0xfff; - - if (do_sigaltstack(&uc->uc_stack, NULL, usp) == -EFAULT) - goto badframe; - - *pd0 = regs->d0; - return err; - -badframe: - return 1; -} - -asmlinkage int do_sigreturn(unsigned long __unused) -{ - struct switch_stack *sw = (struct switch_stack *) &__unused; - struct pt_regs *regs = (struct pt_regs *) (sw + 1); - unsigned long usp = rdusp(); - struct sigframe __user *frame = (struct sigframe __user *)(usp - 4); - sigset_t set; - int d0; - - if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) - goto badframe; - if (__get_user(set.sig[0], &frame->sc.sc_mask) || - (_NSIG_WORDS > 1 && - __copy_from_user(&set.sig[1], &frame->extramask, - sizeof(frame->extramask)))) - goto badframe; - - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - if (restore_sigcontext(regs, &frame->sc, frame + 1, &d0)) - goto badframe; - return d0; - -badframe: - force_sig(SIGSEGV, current); - return 0; -} - -asmlinkage int do_rt_sigreturn(unsigned long __unused) -{ - struct switch_stack *sw = (struct switch_stack *) &__unused; - struct pt_regs *regs = (struct pt_regs *) (sw + 1); - unsigned long usp = rdusp(); - struct rt_sigframe __user *frame = (struct rt_sigframe __user *)(usp - 4); - sigset_t set; - int d0; - - if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) - goto badframe; - if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) - goto badframe; - - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - if (rt_restore_ucontext(regs, sw, &frame->uc, &d0)) - goto badframe; - return d0; - -badframe: - force_sig(SIGSEGV, current); - return 0; -} - -#ifdef CONFIG_FPU -/* - * Set up a signal frame. - */ - -static inline void save_fpu_state(struct sigcontext *sc, struct pt_regs *regs) -{ - if (FPU_IS_EMU) { - /* save registers */ - memcpy(sc->sc_fpcntl, current->thread.fpcntl, 12); - memcpy(sc->sc_fpregs, current->thread.fp, 24); - return; - } - - __asm__ volatile (".chip 68k/68881\n\t" - "fsave %0\n\t" - ".chip 68k" - : : "m" (*sc->sc_fpstate) : "memory"); - - if (sc->sc_fpstate[0]) { - fpu_version = sc->sc_fpstate[0]; - __asm__ volatile (".chip 68k/68881\n\t" - "fmovemx %%fp0-%%fp1,%0\n\t" - "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t" - ".chip 68k" - : "=m" (*sc->sc_fpregs), - "=m" (*sc->sc_fpcntl) - : /* no inputs */ - : "memory"); - } -} - -static inline int rt_save_fpu_state(struct ucontext __user *uc, struct pt_regs *regs) -{ - unsigned char fpstate[FPCONTEXT_SIZE]; - int context_size = 0; - int err = 0; - - if (FPU_IS_EMU) { - /* save fpu control register */ - err |= copy_to_user(uc->uc_mcontext.fpregs.f_pcntl, - current->thread.fpcntl, 12); - /* save all other fpu register */ - err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpregs, - current->thread.fp, 96); - return err; - } - - __asm__ volatile (".chip 68k/68881\n\t" - "fsave %0\n\t" - ".chip 68k" - : : "m" (*fpstate) : "memory"); - - err |= __put_user(*(long *)fpstate, (long __user *)&uc->uc_fpstate); - if (fpstate[0]) { - fpregset_t fpregs; - context_size = fpstate[1]; - fpu_version = fpstate[0]; - __asm__ volatile (".chip 68k/68881\n\t" - "fmovemx %%fp0-%%fp7,%0\n\t" - "fmoveml %%fpcr/%%fpsr/%%fpiar,%1\n\t" - ".chip 68k" - : "=m" (*fpregs.f_fpregs), - "=m" (*fpregs.f_fpcntl) - : /* no inputs */ - : "memory"); - err |= copy_to_user(&uc->uc_mcontext.fpregs, &fpregs, - sizeof(fpregs)); - } - if (context_size) - err |= copy_to_user((long __user *)&uc->uc_fpstate + 1, fpstate + 4, - context_size); - return err; -} - -#endif - -static void setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs, - unsigned long mask) -{ - sc->sc_mask = mask; - sc->sc_usp = rdusp(); - sc->sc_d0 = regs->d0; - sc->sc_d1 = regs->d1; - sc->sc_a0 = regs->a0; - sc->sc_a1 = regs->a1; - sc->sc_a5 = ((struct switch_stack *)regs - 1)->a5; - sc->sc_sr = regs->sr; - sc->sc_pc = regs->pc; - sc->sc_formatvec = regs->format << 12 | regs->vector; -#ifdef CONFIG_FPU - save_fpu_state(sc, regs); -#endif -} - -static inline int rt_setup_ucontext(struct ucontext __user *uc, struct pt_regs *regs) -{ - struct switch_stack *sw = (struct switch_stack *)regs - 1; - greg_t __user *gregs = uc->uc_mcontext.gregs; - int err = 0; - - err |= __put_user(MCONTEXT_VERSION, &uc->uc_mcontext.version); - err |= __put_user(regs->d0, &gregs[0]); - err |= __put_user(regs->d1, &gregs[1]); - err |= __put_user(regs->d2, &gregs[2]); - err |= __put_user(regs->d3, &gregs[3]); - err |= __put_user(regs->d4, &gregs[4]); - err |= __put_user(regs->d5, &gregs[5]); - err |= __put_user(sw->d6, &gregs[6]); - err |= __put_user(sw->d7, &gregs[7]); - err |= __put_user(regs->a0, &gregs[8]); - err |= __put_user(regs->a1, &gregs[9]); - err |= __put_user(regs->a2, &gregs[10]); - err |= __put_user(sw->a3, &gregs[11]); - err |= __put_user(sw->a4, &gregs[12]); - err |= __put_user(sw->a5, &gregs[13]); - err |= __put_user(sw->a6, &gregs[14]); - err |= __put_user(rdusp(), &gregs[15]); - err |= __put_user(regs->pc, &gregs[16]); - err |= __put_user(regs->sr, &gregs[17]); -#ifdef CONFIG_FPU - err |= rt_save_fpu_state(uc, regs); -#endif - return err; -} - -static inline void __user * -get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size) -{ - unsigned long usp; - - /* Default to using normal stack. */ - usp = rdusp(); - - /* This is the X/Open sanctioned signal stack switching. */ - if (ka->sa.sa_flags & SA_ONSTACK) { - if (!sas_ss_flags(usp)) - usp = current->sas_ss_sp + current->sas_ss_size; - } - return (void __user *)((usp - frame_size) & -8UL); -} - -static int setup_frame (int sig, struct k_sigaction *ka, - sigset_t *set, struct pt_regs *regs) -{ - struct sigframe __user *frame; - struct sigcontext context; - int err = 0; - - frame = get_sigframe(ka, regs, sizeof(*frame)); - - err |= __put_user((current_thread_info()->exec_domain - && current_thread_info()->exec_domain->signal_invmap - && sig < 32 - ? current_thread_info()->exec_domain->signal_invmap[sig] - : sig), - &frame->sig); - - err |= __put_user(regs->vector, &frame->code); - err |= __put_user(&frame->sc, &frame->psc); - - if (_NSIG_WORDS > 1) - err |= copy_to_user(frame->extramask, &set->sig[1], - sizeof(frame->extramask)); - - setup_sigcontext(&context, regs, set->sig[0]); - err |= copy_to_user (&frame->sc, &context, sizeof(context)); - - /* Set up to return from userspace. */ - err |= __put_user((void *) ret_from_user_signal, &frame->pretcode); - - if (err) - goto give_sigsegv; - - /* Set up registers for signal handler */ - wrusp ((unsigned long) frame); - regs->pc = (unsigned long) ka->sa.sa_handler; - ((struct switch_stack *)regs - 1)->a5 = current->mm->start_data; - regs->format = 0x4; /*set format byte to make stack appear modulo 4 - which it will be when doing the rte */ - -adjust_stack: - /* Prepare to skip over the extra stuff in the exception frame. */ - if (regs->stkadj) { - struct pt_regs *tregs = - (struct pt_regs *)((ulong)regs + regs->stkadj); -#if defined(DEBUG) - printk(KERN_DEBUG "Performing stackadjust=%04x\n", regs->stkadj); -#endif - /* This must be copied with decreasing addresses to - handle overlaps. */ - tregs->vector = 0; - tregs->format = 0; - tregs->pc = regs->pc; - tregs->sr = regs->sr; - } - return err; - -give_sigsegv: - force_sigsegv(sig, current); - goto adjust_stack; -} - -static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info, - sigset_t *set, struct pt_regs *regs) -{ - struct rt_sigframe __user *frame; - int err = 0; - - frame = get_sigframe(ka, regs, sizeof(*frame)); - - err |= __put_user((current_thread_info()->exec_domain - && current_thread_info()->exec_domain->signal_invmap - && sig < 32 - ? current_thread_info()->exec_domain->signal_invmap[sig] - : sig), - &frame->sig); - err |= __put_user(&frame->info, &frame->pinfo); - err |= __put_user(&frame->uc, &frame->puc); - err |= copy_siginfo_to_user(&frame->info, info); - - /* Create the ucontext. */ - err |= __put_user(0, &frame->uc.uc_flags); - err |= __put_user(NULL, &frame->uc.uc_link); - err |= __put_user((void __user *)current->sas_ss_sp, - &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(rdusp()), - &frame->uc.uc_stack.ss_flags); - err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); - err |= rt_setup_ucontext(&frame->uc, regs); - err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set)); - - /* Set up to return from userspace. */ - err |= __put_user((void *) ret_from_user_rt_signal, &frame->pretcode); - - if (err) - goto give_sigsegv; - - /* Set up registers for signal handler */ - wrusp ((unsigned long) frame); - regs->pc = (unsigned long) ka->sa.sa_handler; - ((struct switch_stack *)regs - 1)->a5 = current->mm->start_data; - regs->format = 0x4; /*set format byte to make stack appear modulo 4 - which it will be when doing the rte */ - -adjust_stack: - /* Prepare to skip over the extra stuff in the exception frame. */ - if (regs->stkadj) { - struct pt_regs *tregs = - (struct pt_regs *)((ulong)regs + regs->stkadj); -#if defined(DEBUG) - printk(KERN_DEBUG "Performing stackadjust=%04x\n", regs->stkadj); -#endif - /* This must be copied with decreasing addresses to - handle overlaps. */ - tregs->vector = 0; - tregs->format = 0; - tregs->pc = regs->pc; - tregs->sr = regs->sr; - } - return err; - -give_sigsegv: - force_sigsegv(sig, current); - goto adjust_stack; -} - -static inline void -handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler) -{ - switch (regs->d0) { - case -ERESTARTNOHAND: - if (!has_handler) - goto do_restart; - regs->d0 = -EINTR; - break; - - case -ERESTART_RESTARTBLOCK: - if (!has_handler) { - regs->d0 = __NR_restart_syscall; - regs->pc -= 2; - break; - } - regs->d0 = -EINTR; - break; - - case -ERESTARTSYS: - if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) { - regs->d0 = -EINTR; - break; - } - /* fallthrough */ - case -ERESTARTNOINTR: - do_restart: - regs->d0 = regs->orig_d0; - regs->pc -= 2; - break; - } -} - -/* - * OK, we're invoking a handler - */ -static void -handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info, - sigset_t *oldset, struct pt_regs *regs) -{ - int err; - /* are we from a system call? */ - if (regs->orig_d0 >= 0) - /* If so, check system call restarting.. */ - handle_restart(regs, ka, 1); - - /* set up the stack frame */ - if (ka->sa.sa_flags & SA_SIGINFO) - err = setup_rt_frame(sig, ka, info, oldset, regs); - else - err = setup_frame(sig, ka, oldset, regs); - - if (err) - return; - - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(¤t->blocked,sig); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - clear_thread_flag(TIF_RESTORE_SIGMASK); -} - -/* - * Note that 'init' is a special process: it doesn't get signals it doesn't - * want to handle. Thus you cannot kill init even with a SIGKILL even by - * mistake. - */ -asmlinkage void do_signal(struct pt_regs *regs) -{ - struct k_sigaction ka; - siginfo_t info; - int signr; - sigset_t *oldset; - - /* - * We want the common case to go fast, which - * is why we may in certain cases get here from - * kernel mode. Just return without doing anything - * if so. - */ - if (!user_mode(regs)) - return; - - if (test_thread_flag(TIF_RESTORE_SIGMASK)) - oldset = ¤t->saved_sigmask; - else - oldset = ¤t->blocked; - - signr = get_signal_to_deliver(&info, &ka, regs, NULL); - if (signr > 0) { - /* Whee! Actually deliver the signal. */ - handle_signal(signr, &ka, &info, oldset, regs); - return; - } - - /* Did we come from a system call? */ - if (regs->orig_d0 >= 0) { - /* Restart the system call - no handlers present */ - handle_restart(regs, NULL, 0); - } - - /* If there's no signal to deliver, we just restore the saved mask. */ - if (test_thread_flag(TIF_RESTORE_SIGMASK)) { - clear_thread_flag(TIF_RESTORE_SIGMASK); - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); - } -} diff --git a/arch/m68knommu/kernel/sys_m68k.c b/arch/m68knommu/kernel/sys_m68k.c deleted file mode 100644 index 68488ae47f0a..000000000000 --- a/arch/m68knommu/kernel/sys_m68k.c +++ /dev/null @@ -1,94 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/sys_m68k.c - * - * This file contains various random system calls that - * have a non-standard calling sequence on the Linux/m68k - * platform. - */ - -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <linux/smp.h> -#include <linux/sem.h> -#include <linux/msg.h> -#include <linux/shm.h> -#include <linux/stat.h> -#include <linux/syscalls.h> -#include <linux/mman.h> -#include <linux/file.h> -#include <linux/ipc.h> -#include <linux/fs.h> - -#include <asm/setup.h> -#include <asm/uaccess.h> -#include <asm/cachectl.h> -#include <asm/traps.h> -#include <asm/cacheflush.h> -#include <asm/unistd.h> - -/* sys_cacheflush -- flush (part of) the processor cache. */ -asmlinkage int -sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len) -{ - flush_cache_all(); - return(0); -} - -asmlinkage int sys_getpagesize(void) -{ - return PAGE_SIZE; -} - -/* - * Do a system call from kernel instead of calling sys_execve so we - * end up with proper pt_regs. - */ -int kernel_execve(const char *filename, - const char *const argv[], - const char *const envp[]) -{ - register long __res asm ("%d0") = __NR_execve; - register long __a asm ("%d1") = (long)(filename); - register long __b asm ("%d2") = (long)(argv); - register long __c asm ("%d3") = (long)(envp); - asm volatile ("trap #0" : "+d" (__res) - : "d" (__a), "d" (__b), "d" (__c)); - return __res; -} - -asmlinkage unsigned long sys_get_thread_area(void) -{ - return current_thread_info()->tp_value; -} - -asmlinkage int sys_set_thread_area(unsigned long tp) -{ - current_thread_info()->tp_value = tp; - return 0; -} - -/* This syscall gets its arguments in A0 (mem), D2 (oldval) and - D1 (newval). */ -asmlinkage int -sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5, - unsigned long __user * mem) -{ - struct mm_struct *mm = current->mm; - unsigned long mem_value; - - down_read(&mm->mmap_sem); - - mem_value = *mem; - if (mem_value == oldval) - *mem = newval; - - up_read(&mm->mmap_sem); - return mem_value; -} - -asmlinkage int sys_atomic_barrier(void) -{ - /* no code needed for uniprocs */ - return 0; -} diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S deleted file mode 100644 index 79b1ed198c07..000000000000 --- a/arch/m68knommu/kernel/syscalltable.S +++ /dev/null @@ -1,365 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/syscalltable.S - * - * Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com) - * - * Based on older entry.S files, the following copyrights apply: - * - * Copyright (C) 1998 D. Jeff Dionne <jeff@lineo.ca>, - * Kenneth Albanowski <kjahds@kjahds.com>, - * Copyright (C) 2000 Lineo Inc. (www.lineo.com) - * Copyright (C) 1991, 1992 Linus Torvalds - */ - -#include <linux/sys.h> -#include <linux/linkage.h> -#include <asm/unistd.h> - -.text -ALIGN -ENTRY(sys_call_table) - .long sys_restart_syscall /* 0 - old "setup()" system call */ - .long sys_exit - .long sys_fork - .long sys_read - .long sys_write - .long sys_open /* 5 */ - .long sys_close - .long sys_waitpid - .long sys_creat - .long sys_link - .long sys_unlink /* 10 */ - .long sys_execve - .long sys_chdir - .long sys_time - .long sys_mknod - .long sys_chmod /* 15 */ - .long sys_chown16 - .long sys_ni_syscall /* old break syscall holder */ - .long sys_stat - .long sys_lseek - .long sys_getpid /* 20 */ - .long sys_mount - .long sys_oldumount - .long sys_setuid16 - .long sys_getuid16 - .long sys_stime /* 25 */ - .long sys_ptrace - .long sys_alarm - .long sys_fstat - .long sys_pause - .long sys_utime /* 30 */ - .long sys_ni_syscall /* old stty syscall holder */ - .long sys_ni_syscall /* old gtty syscall holder */ - .long sys_access - .long sys_nice - .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ - .long sys_sync - .long sys_kill - .long sys_rename - .long sys_mkdir - .long sys_rmdir /* 40 */ - .long sys_dup - .long sys_pipe - .long sys_times - .long sys_ni_syscall /* old prof syscall holder */ - .long sys_brk /* 45 */ - .long sys_setgid16 - .long sys_getgid16 - .long sys_signal - .long sys_geteuid16 - .long sys_getegid16 /* 50 */ - .long sys_acct - .long sys_umount /* recycled never used phys() */ - .long sys_ni_syscall /* old lock syscall holder */ - .long sys_ioctl - .long sys_fcntl /* 55 */ - .long sys_ni_syscall /* old mpx syscall holder */ - .long sys_setpgid - .long sys_ni_syscall /* old ulimit syscall holder */ - .long sys_ni_syscall - .long sys_umask /* 60 */ - .long sys_chroot - .long sys_ustat - .long sys_dup2 - .long sys_getppid - .long sys_getpgrp /* 65 */ - .long sys_setsid - .long sys_sigaction - .long sys_sgetmask - .long sys_ssetmask - .long sys_setreuid16 /* 70 */ - .long sys_setregid16 - .long sys_sigsuspend - .long sys_sigpending - .long sys_sethostname - .long sys_setrlimit /* 75 */ - .long sys_old_getrlimit - .long sys_getrusage - .long sys_gettimeofday - .long sys_settimeofday - .long sys_getgroups16 /* 80 */ - .long sys_setgroups16 - .long sys_old_select - .long sys_symlink - .long sys_lstat - .long sys_readlink /* 85 */ - .long sys_uselib - .long sys_ni_syscall /* sys_swapon */ - .long sys_reboot - .long sys_old_readdir - .long sys_old_mmap /* 90 */ - .long sys_munmap - .long sys_truncate - .long sys_ftruncate - .long sys_fchmod - .long sys_fchown16 /* 95 */ - .long sys_getpriority - .long sys_setpriority - .long sys_ni_syscall /* old profil syscall holder */ - .long sys_statfs - .long sys_fstatfs /* 100 */ - .long sys_ni_syscall /* ioperm for i386 */ - .long sys_socketcall - .long sys_syslog - .long sys_setitimer - .long sys_getitimer /* 105 */ - .long sys_newstat - .long sys_newlstat - .long sys_newfstat - .long sys_ni_syscall - .long sys_ni_syscall /* iopl for i386 */ /* 110 */ - .long sys_vhangup - .long sys_ni_syscall /* obsolete idle() syscall */ - .long sys_ni_syscall /* vm86old for i386 */ - .long sys_wait4 - .long sys_ni_syscall /* 115 */ /* sys_swapoff */ - .long sys_sysinfo - .long sys_ipc - .long sys_fsync - .long sys_sigreturn - .long sys_clone /* 120 */ - .long sys_setdomainname - .long sys_newuname - .long sys_cacheflush /* modify_ldt for i386 */ - .long sys_adjtimex - .long sys_ni_syscall /* 125 */ /* sys_mprotect */ - .long sys_sigprocmask - .long sys_ni_syscall /* old "creat_module" */ - .long sys_init_module - .long sys_delete_module - .long sys_ni_syscall /* 130: old "get_kernel_syms" */ - .long sys_quotactl - .long sys_getpgid - .long sys_fchdir - .long sys_bdflush - .long sys_sysfs /* 135 */ - .long sys_personality - .long sys_ni_syscall /* for afs_syscall */ - .long sys_setfsuid16 - .long sys_setfsgid16 - .long sys_llseek /* 140 */ - .long sys_getdents - .long sys_select - .long sys_flock - .long sys_ni_syscall /* sys_msync */ - .long sys_readv /* 145 */ - .long sys_writev - .long sys_getsid - .long sys_fdatasync - .long sys_sysctl - .long sys_ni_syscall /* 150 */ /* sys_mlock */ - .long sys_ni_syscall /* sys_munlock */ - .long sys_ni_syscall /* sys_mlockall */ - .long sys_ni_syscall /* sys_munlockall */ - .long sys_sched_setparam - .long sys_sched_getparam /* 155 */ - .long sys_sched_setscheduler - .long sys_sched_getscheduler - .long sys_sched_yield - .long sys_sched_get_priority_max - .long sys_sched_get_priority_min /* 160 */ - .long sys_sched_rr_get_interval - .long sys_nanosleep - .long sys_ni_syscall /* sys_mremap */ - .long sys_setresuid16 - .long sys_getresuid16 /* 165 */ - .long sys_getpagesize /* sys_getpagesize */ - .long sys_ni_syscall /* old "query_module" */ - .long sys_poll - .long sys_ni_syscall /* sys_nfsservctl */ - .long sys_setresgid16 /* 170 */ - .long sys_getresgid16 - .long sys_prctl - .long sys_rt_sigreturn - .long sys_rt_sigaction - .long sys_rt_sigprocmask /* 175 */ - .long sys_rt_sigpending - .long sys_rt_sigtimedwait - .long sys_rt_sigqueueinfo - .long sys_rt_sigsuspend - .long sys_pread64 /* 180 */ - .long sys_pwrite64 - .long sys_lchown16 - .long sys_getcwd - .long sys_capget - .long sys_capset /* 185 */ - .long sys_sigaltstack - .long sys_sendfile - .long sys_ni_syscall /* streams1 */ - .long sys_ni_syscall /* streams2 */ - .long sys_vfork /* 190 */ - .long sys_getrlimit - .long sys_mmap_pgoff - .long sys_truncate64 - .long sys_ftruncate64 - .long sys_stat64 /* 195 */ - .long sys_lstat64 - .long sys_fstat64 - .long sys_chown - .long sys_getuid - .long sys_getgid /* 200 */ - .long sys_geteuid - .long sys_getegid - .long sys_setreuid - .long sys_setregid - .long sys_getgroups /* 205 */ - .long sys_setgroups - .long sys_fchown - .long sys_setresuid - .long sys_getresuid - .long sys_setresgid /* 210 */ - .long sys_getresgid - .long sys_lchown - .long sys_setuid - .long sys_setgid - .long sys_setfsuid /* 215 */ - .long sys_setfsgid - .long sys_pivot_root - .long sys_ni_syscall - .long sys_ni_syscall - .long sys_getdents64 /* 220 */ - .long sys_gettid - .long sys_tkill - .long sys_setxattr - .long sys_lsetxattr - .long sys_fsetxattr /* 225 */ - .long sys_getxattr - .long sys_lgetxattr - .long sys_fgetxattr - .long sys_listxattr - .long sys_llistxattr /* 230 */ - .long sys_flistxattr - .long sys_removexattr - .long sys_lremovexattr - .long sys_fremovexattr - .long sys_futex /* 235 */ - .long sys_sendfile64 - .long sys_ni_syscall /* sys_mincore */ - .long sys_ni_syscall /* sys_madvise */ - .long sys_fcntl64 - .long sys_readahead /* 240 */ - .long sys_io_setup - .long sys_io_destroy - .long sys_io_getevents - .long sys_io_submit - .long sys_io_cancel /* 245 */ - .long sys_fadvise64 - .long sys_exit_group - .long sys_lookup_dcookie - .long sys_epoll_create - .long sys_epoll_ctl /* 250 */ - .long sys_epoll_wait - .long sys_ni_syscall /* sys_remap_file_pages */ - .long sys_set_tid_address - .long sys_timer_create - .long sys_timer_settime /* 255 */ - .long sys_timer_gettime - .long sys_timer_getoverrun - .long sys_timer_delete - .long sys_clock_settime - .long sys_clock_gettime /* 260 */ - .long sys_clock_getres - .long sys_clock_nanosleep - .long sys_statfs64 - .long sys_fstatfs64 - .long sys_tgkill /* 265 */ - .long sys_utimes - .long sys_fadvise64_64 - .long sys_mbind - .long sys_get_mempolicy - .long sys_set_mempolicy /* 270 */ - .long sys_mq_open - .long sys_mq_unlink - .long sys_mq_timedsend - .long sys_mq_timedreceive - .long sys_mq_notify /* 275 */ - .long sys_mq_getsetattr - .long sys_waitid - .long sys_ni_syscall /* for sys_vserver */ - .long sys_add_key - .long sys_request_key /* 280 */ - .long sys_keyctl - .long sys_ioprio_set - .long sys_ioprio_get - .long sys_inotify_init - .long sys_inotify_add_watch /* 285 */ - .long sys_inotify_rm_watch - .long sys_migrate_pages - .long sys_openat - .long sys_mkdirat - .long sys_mknodat /* 290 */ - .long sys_fchownat - .long sys_futimesat - .long sys_fstatat64 - .long sys_unlinkat - .long sys_renameat /* 295 */ - .long sys_linkat - .long sys_symlinkat - .long sys_readlinkat - .long sys_fchmodat - .long sys_faccessat /* 300 */ - .long sys_ni_syscall /* Reserved for pselect6 */ - .long sys_ni_syscall /* Reserved for ppoll */ - .long sys_unshare - .long sys_set_robust_list - .long sys_get_robust_list /* 305 */ - .long sys_splice - .long sys_sync_file_range - .long sys_tee - .long sys_vmsplice - .long sys_move_pages /* 310 */ - .long sys_sched_setaffinity - .long sys_sched_getaffinity - .long sys_kexec_load - .long sys_getcpu - .long sys_epoll_pwait /* 315 */ - .long sys_utimensat - .long sys_signalfd - .long sys_timerfd_create - .long sys_eventfd - .long sys_fallocate /* 320 */ - .long sys_timerfd_settime - .long sys_timerfd_gettime - .long sys_signalfd4 - .long sys_eventfd2 - .long sys_epoll_create1 /* 325 */ - .long sys_dup3 - .long sys_pipe2 - .long sys_inotify_init1 - .long sys_preadv - .long sys_pwritev /* 330 */ - .long sys_rt_tgsigqueueinfo - .long sys_perf_event_open - .long sys_get_thread_area - .long sys_set_thread_area - .long sys_atomic_cmpxchg_32 /* 335 */ - .long sys_atomic_barrier - .long sys_fanotify_init - .long sys_fanotify_mark - .long sys_prlimit64 - - .rept NR_syscalls-(.-sys_call_table)/4 - .long sys_ni_syscall - .endr - diff --git a/arch/m68knommu/kernel/time.c b/arch/m68knommu/kernel/time.c deleted file mode 100644 index 6623909f70e6..000000000000 --- a/arch/m68knommu/kernel/time.c +++ /dev/null @@ -1,87 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/time.c - * - * Copyright (C) 1991, 1992, 1995 Linus Torvalds - * - * This file contains the m68k-specific time handling details. - * Most of the stuff is located in the machine specific files. - * - * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 - * "A Kernel Model for Precision Timekeeping" by Dave Mills - */ - -#include <linux/errno.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/param.h> -#include <linux/string.h> -#include <linux/mm.h> -#include <linux/profile.h> -#include <linux/time.h> -#include <linux/timex.h> - -#include <asm/machdep.h> -#include <asm/irq_regs.h> - -#define TICK_SIZE (tick_nsec / 1000) - -static inline int set_rtc_mmss(unsigned long nowtime) -{ - if (mach_set_clock_mmss) - return mach_set_clock_mmss (nowtime); - return -1; -} - -#ifndef CONFIG_GENERIC_CLOCKEVENTS -/* - * timer_interrupt() needs to keep up the real-time clock, - * as well as call the "xtime_update()" routine every clocktick - */ -irqreturn_t arch_timer_interrupt(int irq, void *dummy) -{ - - if (current->pid) - profile_tick(CPU_PROFILING); - - xtime_update(1); - - update_process_times(user_mode(get_irq_regs())); - - return(IRQ_HANDLED); -} -#endif - -static unsigned long read_rtc_mmss(void) -{ - unsigned int year, mon, day, hour, min, sec; - - if (mach_gettod) { - mach_gettod(&year, &mon, &day, &hour, &min, &sec); - if ((year += 1900) < 1970) - year += 100; - } else { - year = 1970; - mon = day = 1; - hour = min = sec = 0; - } - - - return mktime(year, mon, day, hour, min, sec); -} - -void read_persistent_clock(struct timespec *ts) -{ - ts->tv_sec = read_rtc_mmss(); - ts->tv_nsec = 0; -} - -int update_persistent_clock(struct timespec now) -{ - return set_rtc_mmss(now.tv_sec); -} - -void time_init(void) -{ - hw_timer_init(); -} diff --git a/arch/m68knommu/kernel/traps.c b/arch/m68knommu/kernel/traps.c deleted file mode 100644 index a768008dfd06..000000000000 --- a/arch/m68knommu/kernel/traps.c +++ /dev/null @@ -1,365 +0,0 @@ -/* - * linux/arch/m68knommu/kernel/traps.c - * - * Copyright (C) 1993, 1994 by Hamish Macdonald - * - * 68040 fixes by Michael Rausch - * 68040 fixes by Martin Apel - * 68060 fixes by Roman Hodek - * 68060 fixes by Jesper Skov - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - */ - -/* - * Sets up all exception vectors - */ -#include <linux/sched.h> -#include <linux/signal.h> -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/user.h> -#include <linux/string.h> -#include <linux/linkage.h> -#include <linux/init.h> -#include <linux/ptrace.h> -#include <linux/kallsyms.h> - -#include <asm/setup.h> -#include <asm/fpu.h> -#include <asm/system.h> -#include <asm/uaccess.h> -#include <asm/traps.h> -#include <asm/pgtable.h> -#include <asm/machdep.h> -#include <asm/siginfo.h> - -static char const * const vec_names[] = { - "RESET SP", "RESET PC", "BUS ERROR", "ADDRESS ERROR", - "ILLEGAL INSTRUCTION", "ZERO DIVIDE", "CHK", "TRAPcc", - "PRIVILEGE VIOLATION", "TRACE", "LINE 1010", "LINE 1111", - "UNASSIGNED RESERVED 12", "COPROCESSOR PROTOCOL VIOLATION", - "FORMAT ERROR", "UNINITIALIZED INTERRUPT", - "UNASSIGNED RESERVED 16", "UNASSIGNED RESERVED 17", - "UNASSIGNED RESERVED 18", "UNASSIGNED RESERVED 19", - "UNASSIGNED RESERVED 20", "UNASSIGNED RESERVED 21", - "UNASSIGNED RESERVED 22", "UNASSIGNED RESERVED 23", - "SPURIOUS INTERRUPT", "LEVEL 1 INT", "LEVEL 2 INT", "LEVEL 3 INT", - "LEVEL 4 INT", "LEVEL 5 INT", "LEVEL 6 INT", "LEVEL 7 INT", - "SYSCALL", "TRAP #1", "TRAP #2", "TRAP #3", - "TRAP #4", "TRAP #5", "TRAP #6", "TRAP #7", - "TRAP #8", "TRAP #9", "TRAP #10", "TRAP #11", - "TRAP #12", "TRAP #13", "TRAP #14", "TRAP #15", - "FPCP BSUN", "FPCP INEXACT", "FPCP DIV BY 0", "FPCP UNDERFLOW", - "FPCP OPERAND ERROR", "FPCP OVERFLOW", "FPCP SNAN", - "FPCP UNSUPPORTED OPERATION", - "MMU CONFIGURATION ERROR" -}; - -void __init trap_init(void) -{ -} - -void die_if_kernel(char *str, struct pt_regs *fp, int nr) -{ - if (!(fp->sr & PS_S)) - return; - - console_verbose(); - printk(KERN_EMERG "%s: %08x\n",str,nr); - printk(KERN_EMERG "PC: [<%08lx>]\nSR: %04x SP: %p a2: %08lx\n", - fp->pc, fp->sr, fp, fp->a2); - printk(KERN_EMERG "d0: %08lx d1: %08lx d2: %08lx d3: %08lx\n", - fp->d0, fp->d1, fp->d2, fp->d3); - printk(KERN_EMERG "d4: %08lx d5: %08lx a0: %08lx a1: %08lx\n", - fp->d4, fp->d5, fp->a0, fp->a1); - - printk(KERN_EMERG "Process %s (pid: %d, stackpage=%08lx)\n", - current->comm, current->pid, PAGE_SIZE+(unsigned long)current); - show_stack(NULL, (unsigned long *)(fp + 1)); - add_taint(TAINT_DIE); - do_exit(SIGSEGV); -} - -asmlinkage void buserr_c(struct frame *fp) -{ - /* Only set esp0 if coming from user mode */ - if (user_mode(&fp->ptregs)) - current->thread.esp0 = (unsigned long) fp; - -#if defined(DEBUG) - printk (KERN_DEBUG "*** Bus Error *** Format is %x\n", fp->ptregs.format); -#endif - - die_if_kernel("bad frame format",&fp->ptregs,0); -#if defined(DEBUG) - printk(KERN_DEBUG "Unknown SIGSEGV - 4\n"); -#endif - force_sig(SIGSEGV, current); -} - -static void print_this_address(unsigned long addr, int i) -{ -#ifdef CONFIG_KALLSYMS - printk(KERN_EMERG " [%08lx] ", addr); - print_symbol(KERN_CONT "%s\n", addr); -#else - if (i % 5) - printk(KERN_CONT " [%08lx] ", addr); - else - printk(KERN_EMERG " [%08lx] ", addr); - i++; -#endif -} - -int kstack_depth_to_print = 48; - -static void __show_stack(struct task_struct *task, unsigned long *stack) -{ - unsigned long *endstack, addr; -#ifdef CONFIG_FRAME_POINTER - unsigned long *last_stack; -#endif - int i; - - if (!stack) - stack = (unsigned long *)task->thread.ksp; - - addr = (unsigned long) stack; - endstack = (unsigned long *) PAGE_ALIGN(addr); - - printk(KERN_EMERG "Stack from %08lx:", (unsigned long)stack); - for (i = 0; i < kstack_depth_to_print; i++) { - if (stack + 1 + i > endstack) - break; - if (i % 8 == 0) - printk(KERN_EMERG " "); - printk(KERN_CONT " %08lx", *(stack + i)); - } - printk("\n"); - i = 0; - -#ifdef CONFIG_FRAME_POINTER - printk(KERN_EMERG "Call Trace:\n"); - - last_stack = stack - 1; - while (stack <= endstack && stack > last_stack) { - - addr = *(stack + 1); - print_this_address(addr, i); - i++; - - last_stack = stack; - stack = (unsigned long *)*stack; - } - printk("\n"); -#else - printk(KERN_EMERG "Call Trace with CONFIG_FRAME_POINTER disabled:\n"); - while (stack <= endstack) { - addr = *stack++; - /* - * If the address is either in the text segment of the kernel, - * or in a region which is occupied by a module then it *may* - * be the address of a calling routine; if so, print it so that - * someone tracing down the cause of the crash will be able to - * figure out the call path that was taken. - */ - if (__kernel_text_address(addr)) { - print_this_address(addr, i); - i++; - } - } - printk(KERN_CONT "\n"); -#endif -} - -void bad_super_trap(struct frame *fp) -{ - int vector = (fp->ptregs.vector >> 2) & 0xff; - - console_verbose(); - if (vector < ARRAY_SIZE(vec_names)) - printk (KERN_WARNING "*** %s *** FORMAT=%X\n", - vec_names[vector], - fp->ptregs.format); - else - printk (KERN_WARNING "*** Exception %d *** FORMAT=%X\n", - vector, - fp->ptregs.format); - printk (KERN_WARNING "Current process id is %d\n", current->pid); - die_if_kernel("BAD KERNEL TRAP", &fp->ptregs, 0); -} - -asmlinkage void trap_c(struct frame *fp) -{ - int sig; - int vector = (fp->ptregs.vector >> 2) & 0xff; - siginfo_t info; - - if (fp->ptregs.sr & PS_S) { - if (vector == VEC_TRACE) { - /* traced a trapping instruction */ - } else - bad_super_trap(fp); - return; - } - - /* send the appropriate signal to the user program */ - switch (vector) { - case VEC_ADDRERR: - info.si_code = BUS_ADRALN; - sig = SIGBUS; - break; - case VEC_ILLEGAL: - case VEC_LINE10: - case VEC_LINE11: - info.si_code = ILL_ILLOPC; - sig = SIGILL; - break; - case VEC_PRIV: - info.si_code = ILL_PRVOPC; - sig = SIGILL; - break; - case VEC_COPROC: - info.si_code = ILL_COPROC; - sig = SIGILL; - break; - case VEC_TRAP1: /* gdbserver breakpoint */ - fp->ptregs.pc -= 2; - info.si_code = TRAP_TRACE; - sig = SIGTRAP; - break; - case VEC_TRAP2: - case VEC_TRAP3: - case VEC_TRAP4: - case VEC_TRAP5: - case VEC_TRAP6: - case VEC_TRAP7: - case VEC_TRAP8: - case VEC_TRAP9: - case VEC_TRAP10: - case VEC_TRAP11: - case VEC_TRAP12: - case VEC_TRAP13: - case VEC_TRAP14: - info.si_code = ILL_ILLTRP; - sig = SIGILL; - break; - case VEC_FPBRUC: - case VEC_FPOE: - case VEC_FPNAN: - info.si_code = FPE_FLTINV; - sig = SIGFPE; - break; - case VEC_FPIR: - info.si_code = FPE_FLTRES; - sig = SIGFPE; - break; - case VEC_FPDIVZ: - info.si_code = FPE_FLTDIV; - sig = SIGFPE; - break; - case VEC_FPUNDER: - info.si_code = FPE_FLTUND; - sig = SIGFPE; - break; - case VEC_FPOVER: - info.si_code = FPE_FLTOVF; - sig = SIGFPE; - break; - case VEC_ZERODIV: - info.si_code = FPE_INTDIV; - sig = SIGFPE; - break; - case VEC_CHK: - case VEC_TRAP: - info.si_code = FPE_INTOVF; - sig = SIGFPE; - break; - case VEC_TRACE: /* ptrace single step */ - info.si_code = TRAP_TRACE; - sig = SIGTRAP; - break; - case VEC_TRAP15: /* breakpoint */ - info.si_code = TRAP_BRKPT; - sig = SIGTRAP; - break; - default: - info.si_code = ILL_ILLOPC; - sig = SIGILL; - break; - } - info.si_signo = sig; - info.si_errno = 0; - switch (fp->ptregs.format) { - default: - info.si_addr = (void *) fp->ptregs.pc; - break; - case 2: - info.si_addr = (void *) fp->un.fmt2.iaddr; - break; - case 7: - info.si_addr = (void *) fp->un.fmt7.effaddr; - break; - case 9: - info.si_addr = (void *) fp->un.fmt9.iaddr; - break; - case 10: - info.si_addr = (void *) fp->un.fmta.daddr; - break; - case 11: - info.si_addr = (void *) fp->un.fmtb.daddr; - break; - } - force_sig_info (sig, &info, current); -} - -asmlinkage void set_esp0(unsigned long ssp) -{ - current->thread.esp0 = ssp; -} - -/* - * The architecture-independent backtrace generator - */ -void dump_stack(void) -{ - /* - * We need frame pointers for this little trick, which works as follows: - * - * +------------+ 0x00 - * | Next SP | -> 0x0c - * +------------+ 0x04 - * | Caller | - * +------------+ 0x08 - * | Local vars | -> our stack var - * +------------+ 0x0c - * | Next SP | -> 0x18, that is what we pass to show_stack() - * +------------+ 0x10 - * | Caller | - * +------------+ 0x14 - * | Local vars | - * +------------+ 0x18 - * | ... | - * +------------+ - */ - - unsigned long *stack; - - stack = (unsigned long *)&stack; - stack++; - __show_stack(current, stack); -} -EXPORT_SYMBOL(dump_stack); - -void show_stack(struct task_struct *task, unsigned long *stack) -{ - if (!stack && !task) - dump_stack(); - else - __show_stack(task, stack); -} diff --git a/arch/m68knommu/kernel/vmlinux.lds.S b/arch/m68knommu/kernel/vmlinux.lds.S deleted file mode 100644 index 47e15ebfd893..000000000000 --- a/arch/m68knommu/kernel/vmlinux.lds.S +++ /dev/null @@ -1,188 +0,0 @@ -/* - * vmlinux.lds.S -- master linker script for m68knommu arch - * - * (C) Copyright 2002-2006, Greg Ungerer <gerg@snapgear.com> - * - * This linker script is equiped to build either ROM loaded or RAM - * run kernels. - */ - -#include <asm-generic/vmlinux.lds.h> -#include <asm/page.h> -#include <asm/thread_info.h> - -#if defined(CONFIG_RAMKERNEL) -#define RAM_START CONFIG_KERNELBASE -#define RAM_LENGTH (CONFIG_RAMBASE + CONFIG_RAMSIZE - CONFIG_KERNELBASE) -#define TEXT ram -#define DATA ram -#define INIT ram -#define BSSS ram -#endif -#if defined(CONFIG_ROMKERNEL) || defined(CONFIG_HIMEMKERNEL) -#define RAM_START CONFIG_RAMBASE -#define RAM_LENGTH CONFIG_RAMSIZE -#define ROMVEC_START CONFIG_ROMVEC -#define ROMVEC_LENGTH CONFIG_ROMVECSIZE -#define ROM_START CONFIG_ROMSTART -#define ROM_LENGTH CONFIG_ROMSIZE -#define TEXT rom -#define DATA ram -#define INIT ram -#define BSSS ram -#endif - -#ifndef DATA_ADDR -#define DATA_ADDR -#endif - - -OUTPUT_ARCH(m68k) -ENTRY(_start) - -MEMORY { - ram : ORIGIN = RAM_START, LENGTH = RAM_LENGTH -#ifdef ROM_START - romvec : ORIGIN = ROMVEC_START, LENGTH = ROMVEC_LENGTH - rom : ORIGIN = ROM_START, LENGTH = ROM_LENGTH -#endif -} - -jiffies = jiffies_64 + 4; - -SECTIONS { - -#ifdef ROMVEC_START - . = ROMVEC_START ; - .romvec : { - __rom_start = . ; - _romvec = .; - *(.data..initvect) - } > romvec -#endif - - .text : { - _text = .; - _stext = . ; - HEAD_TEXT - TEXT_TEXT - SCHED_TEXT - LOCK_TEXT - *(.text..lock) - - . = ALIGN(16); /* Exception table */ - __start___ex_table = .; - *(__ex_table) - __stop___ex_table = .; - - *(.rodata) *(.rodata.*) - *(__vermagic) /* Kernel version magic */ - *(__markers_strings) - *(.rodata1) - *(.rodata.str1.1) - - /* Kernel symbol table: Normal symbols */ - . = ALIGN(4); - __start___ksymtab = .; - *(__ksymtab) - __stop___ksymtab = .; - - /* Kernel symbol table: GPL-only symbols */ - __start___ksymtab_gpl = .; - *(__ksymtab_gpl) - __stop___ksymtab_gpl = .; - - /* Kernel symbol table: Normal unused symbols */ - __start___ksymtab_unused = .; - *(__ksymtab_unused) - __stop___ksymtab_unused = .; - - /* Kernel symbol table: GPL-only unused symbols */ - __start___ksymtab_unused_gpl = .; - *(__ksymtab_unused_gpl) - __stop___ksymtab_unused_gpl = .; - - /* Kernel symbol table: GPL-future symbols */ - __start___ksymtab_gpl_future = .; - *(__ksymtab_gpl_future) - __stop___ksymtab_gpl_future = .; - - /* Kernel symbol table: Normal symbols */ - __start___kcrctab = .; - *(__kcrctab) - __stop___kcrctab = .; - - /* Kernel symbol table: GPL-only symbols */ - __start___kcrctab_gpl = .; - *(__kcrctab_gpl) - __stop___kcrctab_gpl = .; - - /* Kernel symbol table: Normal unused symbols */ - __start___kcrctab_unused = .; - *(__kcrctab_unused) - __stop___kcrctab_unused = .; - - /* Kernel symbol table: GPL-only unused symbols */ - __start___kcrctab_unused_gpl = .; - *(__kcrctab_unused_gpl) - __stop___kcrctab_unused_gpl = .; - - /* Kernel symbol table: GPL-future symbols */ - __start___kcrctab_gpl_future = .; - *(__kcrctab_gpl_future) - __stop___kcrctab_gpl_future = .; - - /* Kernel symbol table: strings */ - *(__ksymtab_strings) - - /* Built-in module parameters */ - . = ALIGN(4) ; - __start___param = .; - *(__param) - __stop___param = .; - - /* Built-in module versions */ - . = ALIGN(4) ; - __start___modver = .; - *(__modver) - __stop___modver = .; - - . = ALIGN(4) ; - _etext = . ; - } > TEXT - - .data DATA_ADDR : { - . = ALIGN(4); - _sdata = . ; - DATA_DATA - CACHELINE_ALIGNED_DATA(32) - PAGE_ALIGNED_DATA(PAGE_SIZE) - *(.data..shared_aligned) - INIT_TASK_DATA(THREAD_SIZE) - _edata = . ; - } > DATA - - .init.text : { - . = ALIGN(PAGE_SIZE); - __init_begin = .; - } > INIT - INIT_TEXT_SECTION(PAGE_SIZE) > INIT - INIT_DATA_SECTION(16) > INIT - .init.data : { - . = ALIGN(PAGE_SIZE); - __init_end = .; - } > INIT - - .bss : { - . = ALIGN(4); - _sbss = . ; - *(.bss) - *(COMMON) - . = ALIGN(4) ; - _ebss = . ; - _end = . ; - } > BSSS - - DISCARDS -} - |