diff options
Diffstat (limited to 'arch/sparc/kernel')
| -rw-r--r-- | arch/sparc/kernel/process.c | 16 | ||||
| -rw-r--r-- | arch/sparc/kernel/ptrace.c | 3 | ||||
| -rw-r--r-- | arch/sparc/kernel/sparc_ksyms.c | 20 |
3 files changed, 30 insertions, 9 deletions
diff --git a/arch/sparc/kernel/process.c b/arch/sparc/kernel/process.c index 143fe2f3c1c..2c216ffeea9 100644 --- a/arch/sparc/kernel/process.c +++ b/arch/sparc/kernel/process.c @@ -83,9 +83,6 @@ void default_idle(void) */ void cpu_idle(void) { - if (current->pid != 0) - goto out; - /* endless idle loop with no priority at all */ for (;;) { if (ARCH_SUN4C_SUN4) { @@ -126,8 +123,6 @@ void cpu_idle(void) schedule(); check_pgt_cache(); } -out: - return; } #else @@ -333,6 +328,17 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) printk("\n"); } +void dump_stack(void) +{ + unsigned long *ksp; + + __asm__ __volatile__("mov %%fp, %0" + : "=r" (ksp)); + show_stack(current, ksp); +} + +EXPORT_SYMBOL(dump_stack); + /* * Note: sparc64 has a pretty intricated thread_saved_pc, check it out. */ diff --git a/arch/sparc/kernel/ptrace.c b/arch/sparc/kernel/ptrace.c index c4f93bd2daf..475c4c13462 100644 --- a/arch/sparc/kernel/ptrace.c +++ b/arch/sparc/kernel/ptrace.c @@ -18,6 +18,7 @@ #include <linux/smp.h> #include <linux/smp_lock.h> #include <linux/security.h> +#include <linux/signal.h> #include <asm/pgtable.h> #include <asm/system.h> @@ -526,7 +527,7 @@ asmlinkage void do_ptrace(struct pt_regs *regs) addr = 1; case PTRACE_CONT: { /* restart after signal. */ - if (data > _NSIG) { + if (!valid_signal(data)) { pt_error_return(regs, EIO); goto out_tsk; } diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c index f91b0e8d0dc..1bd430d0ca0 100644 --- a/arch/sparc/kernel/sparc_ksyms.c +++ b/arch/sparc/kernel/sparc_ksyms.c @@ -20,6 +20,7 @@ #include <linux/in6.h> #include <linux/spinlock.h> #include <linux/mm.h> +#include <linux/syscalls.h> #ifdef CONFIG_PCI #include <linux/pci.h> #endif @@ -89,6 +90,9 @@ extern void ___atomic24_sub(void); extern void ___set_bit(void); extern void ___clear_bit(void); extern void ___change_bit(void); +extern void ___rw_read_enter(void); +extern void ___rw_read_exit(void); +extern void ___rw_write_enter(void); /* Alias functions whose names begin with "." and export the aliases. * The module references will be fixed up by module_frob_arch_sections. @@ -121,9 +125,9 @@ EXPORT_SYMBOL(_do_write_unlock); #endif #else // XXX find what uses (or used) these. -// EXPORT_SYMBOL_PRIVATE(_rw_read_enter); -// EXPORT_SYMBOL_PRIVATE(_rw_read_exit); -// EXPORT_SYMBOL_PRIVATE(_rw_write_enter); +EXPORT_SYMBOL(___rw_read_enter); +EXPORT_SYMBOL(___rw_read_exit); +EXPORT_SYMBOL(___rw_write_enter); #endif /* semaphores */ EXPORT_SYMBOL(__up); @@ -144,6 +148,9 @@ EXPORT_SYMBOL(___set_bit); EXPORT_SYMBOL(___clear_bit); EXPORT_SYMBOL(___change_bit); +/* Per-CPU information table */ +EXPORT_PER_CPU_SYMBOL(__cpu_data); + #ifdef CONFIG_SMP /* IRQ implementation. */ EXPORT_SYMBOL(synchronize_irq); @@ -151,6 +158,10 @@ EXPORT_SYMBOL(synchronize_irq); /* Misc SMP information */ EXPORT_SYMBOL(__cpu_number_map); EXPORT_SYMBOL(__cpu_logical_map); + +/* CPU online map and active count. */ +EXPORT_SYMBOL(cpu_online_map); +EXPORT_SYMBOL(phys_cpu_present_map); #endif EXPORT_SYMBOL(__udelay); @@ -332,3 +343,6 @@ EXPORT_SYMBOL(do_BUG); /* Sun Power Management Idle Handler */ EXPORT_SYMBOL(pm_idle); + +/* Binfmt_misc needs this */ +EXPORT_SYMBOL(sys_close); |