diff options
Diffstat (limited to 'arch/score/kernel')
| -rw-r--r-- | arch/score/kernel/Makefile | 2 | ||||
| -rw-r--r-- | arch/score/kernel/entry.S | 39 | ||||
| -rw-r--r-- | arch/score/kernel/init_task.c | 46 | ||||
| -rw-r--r-- | arch/score/kernel/irq.c | 53 | ||||
| -rw-r--r-- | arch/score/kernel/module.c | 33 | ||||
| -rw-r--r-- | arch/score/kernel/process.c | 77 | ||||
| -rw-r--r-- | arch/score/kernel/setup.c | 4 | ||||
| -rw-r--r-- | arch/score/kernel/signal.c | 88 | ||||
| -rw-r--r-- | arch/score/kernel/sys_score.c | 88 | ||||
| -rw-r--r-- | arch/score/kernel/traps.c | 12 | ||||
| -rw-r--r-- | arch/score/kernel/vmlinux.lds.S | 1 |
11 files changed, 61 insertions, 382 deletions
diff --git a/arch/score/kernel/Makefile b/arch/score/kernel/Makefile index f218673b5d3..fb1802b3f54 100644 --- a/arch/score/kernel/Makefile +++ b/arch/score/kernel/Makefile @@ -4,7 +4,7 @@ extra-y := head.o vmlinux.lds -obj-y += entry.o init_task.o irq.o process.o ptrace.o \ +obj-y += entry.o irq.o process.o ptrace.o \ setup.o signal.o sys_score.o time.o traps.o \ sys_call_table.o diff --git a/arch/score/kernel/entry.S b/arch/score/kernel/entry.S index 577abba3fac..befb87d30a8 100644 --- a/arch/score/kernel/entry.S +++ b/arch/score/kernel/entry.S @@ -264,7 +264,7 @@ resume_kernel: disable_irq lw r8, [r28, TI_PRE_COUNT] cmpz.c r8 - bne r8, restore_all + bne restore_all need_resched: lw r8, [r28, TI_FLAGS] andri.c r9, r8, _TIF_NEED_RESCHED @@ -278,6 +278,13 @@ need_resched: nop #endif +ENTRY(ret_from_kernel_thread) + bl schedule_tail # r4=struct task_struct *prev + nop + mv r4, r13 + brl r12 + j syscall_exit + ENTRY(ret_from_fork) bl schedule_tail # r4=struct task_struct *prev @@ -408,7 +415,7 @@ ENTRY(handle_sys) sw r9, [r0, PT_EPC] cmpi.c r27, __NR_syscalls # check syscall number - bgtu illegal_syscall + bcs illegal_syscall slli r8, r27, 2 # get syscall routine la r11, sys_call_table @@ -480,35 +487,7 @@ illegal_syscall: sw r9, [r0, PT_R7] j syscall_return -ENTRY(sys_execve) - mv r4, r0 - la r8, score_execve - br r8 - -ENTRY(sys_clone) - mv r4, r0 - la r8, score_clone - br r8 - ENTRY(sys_rt_sigreturn) mv r4, r0 la r8, score_rt_sigreturn br r8 - -ENTRY(sys_sigaltstack) - mv r4, r0 - la r8, score_sigaltstack - br r8 - -#ifdef __ARCH_WANT_SYSCALL_DEPRECATED -ENTRY(sys_fork) - mv r4, r0 - la r8, score_fork - br r8 - -ENTRY(sys_vfork) - mv r4, r0 - la r8, score_vfork - br r8 -#endif /* __ARCH_WANT_SYSCALL_DEPRECATED */ - diff --git a/arch/score/kernel/init_task.c b/arch/score/kernel/init_task.c deleted file mode 100644 index baa03ee217d..00000000000 --- a/arch/score/kernel/init_task.c +++ /dev/null @@ -1,46 +0,0 @@ -/* - * arch/score/kernel/init_task.c - * - * Score Processor version. - * - * Copyright (C) 2009 Sunplus Core Technology Co., Ltd. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see the file COPYING, or write - * to the Free Software Foundation, Inc., - * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <linux/init_task.h> -#include <linux/mqueue.h> - -static struct signal_struct init_signals = INIT_SIGNALS(init_signals); -static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); - -/* - * Initial thread structure. - * - * We need to make sure that this is THREAD_SIZE 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) }; - -/* - * Initial task structure. - * - * All other task structs will be allocated on slabs in fork.c - */ -struct task_struct init_task = INIT_TASK(init_task); -EXPORT_SYMBOL(init_task); diff --git a/arch/score/kernel/irq.c b/arch/score/kernel/irq.c index 47647dde09c..d4196732c65 100644 --- a/arch/score/kernel/irq.c +++ b/arch/score/kernel/irq.c @@ -52,9 +52,9 @@ asmlinkage void do_IRQ(int irq) irq_exit(); } -static void score_mask(unsigned int irq_nr) +static void score_mask(struct irq_data *d) { - unsigned int irq_source = 63 - irq_nr; + unsigned int irq_source = 63 - d->irq; if (irq_source < 32) __raw_writel((__raw_readl(SCORE_PIC + INT_MASKL) | \ @@ -64,9 +64,9 @@ static void score_mask(unsigned int irq_nr) (1 << (irq_source - 32))), SCORE_PIC + INT_MASKH); } -static void score_unmask(unsigned int irq_nr) +static void score_unmask(struct irq_data *d) { - unsigned int irq_source = 63 - irq_nr; + unsigned int irq_source = 63 - d->irq; if (irq_source < 32) __raw_writel((__raw_readl(SCORE_PIC + INT_MASKL) & \ @@ -78,9 +78,9 @@ static void score_unmask(unsigned int irq_nr) struct irq_chip score_irq_chip = { .name = "Score7-level", - .mask = score_mask, - .mask_ack = score_mask, - .unmask = score_unmask, + .irq_mask = score_mask, + .irq_mask_ack = score_mask, + .irq_unmask = score_unmask, }; /* @@ -92,7 +92,7 @@ void __init init_IRQ(void) unsigned long target_addr; for (index = 0; index < NR_IRQS; ++index) - set_irq_chip_and_handler(index, &score_irq_chip, + irq_set_chip_and_handler(index, &score_irq_chip, handle_level_irq); for (target_addr = IRQ_VECTOR_BASE_ADDR; @@ -109,40 +109,3 @@ void __init init_IRQ(void) : : "r" (EXCEPTION_VECTOR_BASE_ADDR | \ VECTOR_ADDRESS_OFFSET_MODE16)); } - -/* - * Generic, controller-independent functions: - */ -int show_interrupts(struct seq_file *p, void *v) -{ - int i = *(loff_t *)v, cpu; - struct irqaction *action; - unsigned long flags; - - if (i == 0) { - seq_puts(p, " "); - for_each_online_cpu(cpu) - seq_printf(p, "CPU%d ", cpu); - seq_putc(p, '\n'); - } - - if (i < NR_IRQS) { - spin_lock_irqsave(&irq_desc[i].lock, flags); - action = irq_desc[i].action; - if (!action) - goto unlock; - - seq_printf(p, "%3d: ", i); - seq_printf(p, "%10u ", kstat_irqs(i)); - seq_printf(p, " %8s", irq_desc[i].chip->name ? : "-"); - seq_printf(p, " %s", action->name); - for (action = action->next; action; action = action->next) - seq_printf(p, ", %s", action->name); - - seq_putc(p, '\n'); -unlock: - spin_unlock_irqrestore(&irq_desc[i].lock, flags); - } - - return 0; -} diff --git a/arch/score/kernel/module.c b/arch/score/kernel/module.c index 4de8d47becd..1378d99baa3 100644 --- a/arch/score/kernel/module.c +++ b/arch/score/kernel/module.c @@ -27,23 +27,6 @@ #include <linux/module.h> #include <linux/vmalloc.h> -void *module_alloc(unsigned long size) -{ - return size ? vmalloc(size) : NULL; -} - -/* Free memory returned from module_alloc */ -void module_free(struct module *mod, void *module_region) -{ - vfree(module_region); -} - -int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs, - char *secstrings, struct module *mod) -{ - return 0; -} - int apply_relocate(Elf_Shdr *sechdrs, const char *strtab, unsigned int symindex, unsigned int relindex, struct module *me) @@ -142,24 +125,8 @@ int apply_relocate(Elf_Shdr *sechdrs, const char *strtab, return 0; } -int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab, - unsigned int symindex, unsigned int relsec, - struct module *me) -{ - return 0; -} - /* Given an address, look for it in the module exception tables. */ const struct exception_table_entry *search_module_dbetables(unsigned long addr) { return NULL; } - -/* Put in dbe list if necessary. */ -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/score/kernel/process.c b/arch/score/kernel/process.c index 25d08030a88..a1519ad3d49 100644 --- a/arch/score/kernel/process.c +++ b/arch/score/kernel/process.c @@ -27,6 +27,7 @@ #include <linux/reboot.h> #include <linux/elfcore.h> #include <linux/pm.h> +#include <linux/rcupdate.h> void (*pm_power_off)(void); EXPORT_SYMBOL(pm_power_off); @@ -40,26 +41,8 @@ void machine_halt(void) {} /* If or when software machine-power-off is implemented, add code here. */ void machine_power_off(void) {} -/* - * 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 __noreturn cpu_idle(void) -{ - /* endless idle loop with no priority at all */ - while (1) { - while (!need_resched()) - barrier(); - - preempt_enable_no_resched(); - schedule(); - preempt_disable(); - } -} - void ret_from_fork(void); +void ret_from_kernel_thread(void); void start_thread(struct pt_regs *regs, unsigned long pc, unsigned long sp) { @@ -86,29 +69,27 @@ void flush_thread(void) {} * set up the kernel stack and exception frames for a new process */ int copy_thread(unsigned long clone_flags, unsigned long usp, - unsigned long unused, - struct task_struct *p, struct pt_regs *regs) + unsigned long arg, struct task_struct *p) { struct thread_info *ti = task_thread_info(p); struct pt_regs *childregs = task_pt_regs(p); + struct pt_regs *regs = current_pt_regs(); - p->set_child_tid = NULL; - p->clear_child_tid = NULL; - - *childregs = *regs; - childregs->regs[7] = 0; /* Clear error flag */ - childregs->regs[4] = 0; /* Child gets zero as return value */ - regs->regs[4] = p->pid; - - if (childregs->cp0_psr & 0x8) { /* test kernel fork or user fork */ - childregs->regs[0] = usp; /* user fork */ + p->thread.reg0 = (unsigned long) childregs; + if (unlikely(p->flags & PF_KTHREAD)) { + memset(childregs, 0, sizeof(struct pt_regs)); + p->thread.reg12 = usp; + p->thread.reg13 = arg; + p->thread.reg3 = (unsigned long) ret_from_kernel_thread; } else { - childregs->regs[28] = (unsigned long) ti; /* kernel fork */ - childregs->regs[0] = (unsigned long) childregs; + *childregs = *current_pt_regs(); + childregs->regs[7] = 0; /* Clear error flag */ + childregs->regs[4] = 0; /* Child gets zero as return value */ + if (usp) + childregs->regs[0] = usp; /* user fork */ + p->thread.reg3 = (unsigned long) ret_from_fork; } - p->thread.reg0 = (unsigned long) childregs; - p->thread.reg3 = (unsigned long) ret_from_fork; p->thread.cp0_psr = 0; return 0; @@ -120,32 +101,6 @@ int dump_fpu(struct pt_regs *regs, elf_fpregset_t *r) return 1; } -static void __noreturn -kernel_thread_helper(void *unused0, int (*fn)(void *), - void *arg, void *unused1) -{ - do_exit(fn(arg)); -} - -/* - * Create a kernel thread. - */ -long kernel_thread(int (*fn)(void *), void *arg, unsigned long flags) -{ - struct pt_regs regs; - - memset(®s, 0, sizeof(regs)); - - regs.regs[6] = (unsigned long) arg; - regs.regs[5] = (unsigned long) fn; - regs.cp0_epc = (unsigned long) kernel_thread_helper; - regs.cp0_psr = (regs.cp0_psr & ~(0x1|0x4|0x8)) | \ - ((regs.cp0_psr & 0x3) << 2); - - return do_fork(flags | CLONE_VM | CLONE_UNTRACED, \ - 0, ®s, 0, NULL, NULL); -} - unsigned long thread_saved_pc(struct task_struct *tsk) { return task_pt_regs(tsk)->cp0_epc; diff --git a/arch/score/kernel/setup.c b/arch/score/kernel/setup.c index 6f898c05787..b48459afefd 100644 --- a/arch/score/kernel/setup.c +++ b/arch/score/kernel/setup.c @@ -26,6 +26,7 @@ #include <linux/bootmem.h> #include <linux/initrd.h> #include <linux/ioport.h> +#include <linux/memblock.h> #include <linux/mm.h> #include <linux/seq_file.h> #include <linux/screen_info.h> @@ -54,7 +55,8 @@ static void __init bootmem_init(void) /* Initialize the boot-time allocator with low memory only. */ bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn, min_low_pfn, max_low_pfn); - add_active_range(0, min_low_pfn, max_low_pfn); + memblock_add_node(PFN_PHYS(min_low_pfn), + PFN_PHYS(max_low_pfn - min_low_pfn), 0); free_bootmem(PFN_PHYS(start_pfn), (max_low_pfn - start_pfn) << PAGE_SHIFT); diff --git a/arch/score/kernel/signal.c b/arch/score/kernel/signal.c index aa57440e497..a00fba32b0e 100644 --- a/arch/score/kernel/signal.c +++ b/arch/score/kernel/signal.c @@ -28,13 +28,12 @@ #include <linux/ptrace.h> #include <linux/unistd.h> #include <linux/uaccess.h> +#include <linux/tracehook.h> #include <asm/cacheflush.h> #include <asm/syscalls.h> #include <asm/ucontext.h> -#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) - struct rt_sigframe { u32 rs_ass[4]; /* argument save space */ u32 rs_code[2]; /* signal trampoline */ @@ -135,34 +134,22 @@ static void __user *get_sigframe(struct k_sigaction *ka, } asmlinkage long -score_sigaltstack(struct pt_regs *regs) -{ - const stack_t __user *uss = (const stack_t __user *) regs->regs[4]; - stack_t __user *uoss = (stack_t __user *) regs->regs[5]; - unsigned long usp = regs->regs[0]; - - return do_sigaltstack(uss, uoss, usp); -} - -asmlinkage long score_rt_sigreturn(struct pt_regs *regs) { struct rt_sigframe __user *frame; sigset_t set; - stack_t st; int sig; + /* Always make any pending restarted system calls return -EINTR */ + current_thread_info()->restart_block.fn = do_no_restart_syscall; + frame = (struct rt_sigframe __user *) regs->regs[0]; if (!access_ok(VERIFY_READ, frame, sizeof(*frame))) goto badframe; if (__copy_from_user(&set, &frame->rs_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); + set_current_blocked(&set); sig = restore_sigcontext(regs, &frame->rs_uc.uc_mcontext); if (sig < 0) @@ -170,12 +157,9 @@ score_rt_sigreturn(struct pt_regs *regs) else if (sig) force_sig(sig, current); - if (__copy_from_user(&st, &frame->rs_uc.uc_stack, sizeof(st))) + if (restore_altstack(&frame->rs_uc.uc_stack)) goto badframe; - - /* It is more difficult to avoid calling this function than to - call it and ignore errors. */ - do_sigaltstack((stack_t __user *)&st, NULL, regs->regs[0]); + regs->is_syscall = 0; __asm__ __volatile__( "mv\tr0, %0\n\t" @@ -213,12 +197,7 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, err |= copy_siginfo_to_user(&frame->rs_info, info); err |= __put_user(0, &frame->rs_uc.uc_flags); err |= __put_user(NULL, &frame->rs_uc.uc_link); - err |= __put_user((void __user *)current->sas_ss_sp, - &frame->rs_uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(regs->regs[0]), - &frame->rs_uc.uc_stack.ss_flags); - err |= __put_user(current->sas_ss_size, - &frame->rs_uc.uc_stack.ss_size); + err |= __save_altstack(&frame->rs_uc.uc_stack, regs->regs[0]); err |= setup_sigcontext(regs, &frame->rs_uc.uc_mcontext); err |= __copy_to_user(&frame->rs_uc.uc_sigmask, set, sizeof(*set)); @@ -236,17 +215,13 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, return 0; give_sigsegv: - if (signr == SIGSEGV) - ka->sa.sa_handler = SIG_DFL; - force_sig(SIGSEGV, current); + force_sigsegv(signr, current); return -EFAULT; } -static int handle_signal(unsigned long sig, siginfo_t *info, - struct k_sigaction *ka, sigset_t *oldset, struct pt_regs *regs) +static void handle_signal(unsigned long sig, siginfo_t *info, + struct k_sigaction *ka, struct pt_regs *regs) { - int ret; - if (regs->is_syscall) { switch (regs->regs[4]) { case ERESTART_RESTARTBLOCK: @@ -270,22 +245,15 @@ static int handle_signal(unsigned long sig, siginfo_t *info, /* * Set up the stack frame */ - ret = setup_rt_frame(ka, regs, sig, oldset, info); - - 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); + if (setup_rt_frame(ka, regs, sig, sigmask_to_save(), info) < 0) + return; - return ret; + signal_delivered(sig, info, ka, regs, 0); } static void do_signal(struct pt_regs *regs) { struct k_sigaction ka; - sigset_t *oldset; siginfo_t info; int signr; @@ -297,25 +265,10 @@ static void do_signal(struct pt_regs *regs) 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) { /* Actually deliver the signal. */ - if (handle_signal(signr, &info, &ka, oldset, regs) == 0) { - /* - * A signal was successfully delivered; the saved - * sigmask will have been stored in the signal frame, - * and will be restored by sigreturn, so we can simply - * clear the TIF_RESTORE_SIGMASK flag. - */ - if (test_thread_flag(TIF_RESTORE_SIGMASK)) - clear_thread_flag(TIF_RESTORE_SIGMASK); - } - + handle_signal(signr, &info, &ka, regs); return; } @@ -342,10 +295,7 @@ static void do_signal(struct pt_regs *regs) * If there's no signal to deliver, we just put the saved sigmask * back */ - if (test_thread_flag(TIF_RESTORE_SIGMASK)) { - clear_thread_flag(TIF_RESTORE_SIGMASK); - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); - } + restore_saved_sigmask(); } /* @@ -356,6 +306,10 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags) { /* deal with pending signal delivery */ - if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK)) + if (thread_info_flags & _TIF_SIGPENDING) do_signal(regs); + if (thread_info_flags & _TIF_NOTIFY_RESUME) { + clear_thread_flag(TIF_NOTIFY_RESUME); + tracehook_notify_resume(regs); + } } diff --git a/arch/score/kernel/sys_score.c b/arch/score/kernel/sys_score.c index e478bf9a7e9..47c20ba4616 100644 --- a/arch/score/kernel/sys_score.c +++ b/arch/score/kernel/sys_score.c @@ -48,91 +48,3 @@ sys_mmap(unsigned long addr, unsigned long len, unsigned long prot, return -EINVAL; return sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT); } - -asmlinkage long -score_fork(struct pt_regs *regs) -{ - return do_fork(SIGCHLD, regs->regs[0], regs, 0, NULL, NULL); -} - -/* - * Clone a task - this clones the calling program thread. - * This is called indirectly via a small wrapper - */ -asmlinkage long -score_clone(struct pt_regs *regs) -{ - unsigned long clone_flags; - unsigned long newsp; - int __user *parent_tidptr, *child_tidptr; - - clone_flags = regs->regs[4]; - newsp = regs->regs[5]; - if (!newsp) - newsp = regs->regs[0]; - parent_tidptr = (int __user *)regs->regs[6]; - child_tidptr = (int __user *)regs->regs[8]; - - return do_fork(clone_flags, newsp, regs, 0, - parent_tidptr, child_tidptr); -} - -asmlinkage long -score_vfork(struct pt_regs *regs) -{ - return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, - regs->regs[0], regs, 0, NULL, NULL); -} - -/* - * sys_execve() executes a new program. - * This is called indirectly via a small wrapper - */ -asmlinkage long -score_execve(struct pt_regs *regs) -{ - int error; - char *filename; - - filename = getname((char __user*)regs->regs[4]); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - return error; - - error = do_execve(filename, - (const char __user *const __user *)regs->regs[5], - (const char __user *const __user *)regs->regs[6], - regs); - - putname(filename); - return error; -} - -/* - * 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 unsigned long __r4 asm("r4") = (unsigned long) filename; - register unsigned long __r5 asm("r5") = (unsigned long) argv; - register unsigned long __r6 asm("r6") = (unsigned long) envp; - register unsigned long __r7 asm("r7"); - - __asm__ __volatile__ (" \n" - "ldi r27, %5 \n" - "syscall \n" - "mv %0, r4 \n" - "mv %1, r7 \n" - : "=&r" (__r4), "=r" (__r7) - : "r" (__r4), "r" (__r5), "r" (__r6), "i" (__NR_execve) - : "r8", "r9", "r10", "r11", "r22", "r23", "r24", "r25", - "r26", "r27", "memory"); - - if (__r7 == 0) - return __r4; - - return -__r4; -} diff --git a/arch/score/kernel/traps.c b/arch/score/kernel/traps.c index 0e46fb19a84..1517a7dcd6d 100644 --- a/arch/score/kernel/traps.c +++ b/arch/score/kernel/traps.c @@ -117,6 +117,8 @@ static void show_code(unsigned int *pc) */ void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_DEFAULT); + printk("r0 : %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n", regs->regs[0], regs->regs[1], regs->regs[2], regs->regs[3], regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]); @@ -149,16 +151,6 @@ static void show_registers(struct pt_regs *regs) printk(KERN_NOTICE "\n"); } -/* - * The architecture-independent dump_stack generator - */ -void dump_stack(void) -{ - show_stack(current_thread_info()->task, - (long *) get_irq_regs()->regs[0]); -} -EXPORT_SYMBOL(dump_stack); - void __die(const char *str, struct pt_regs *regs, const char *file, const char *func, unsigned long line) { diff --git a/arch/score/kernel/vmlinux.lds.S b/arch/score/kernel/vmlinux.lds.S index eebcbaa4e97..7274b5c4287 100644 --- a/arch/score/kernel/vmlinux.lds.S +++ b/arch/score/kernel/vmlinux.lds.S @@ -49,6 +49,7 @@ SECTIONS } . = ALIGN(16); + _sdata = .; /* Start of data section */ RODATA EXCEPTION_TABLE(16) |