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Diffstat (limited to 'arch/sparc/kernel/process_32.c')
-rw-r--r--arch/sparc/kernel/process_32.c94
1 files changed, 8 insertions, 86 deletions
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 26cca65e9246..adfcaeab3ddc 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -34,8 +34,6 @@
#include <asm/oplib.h>
#include <linux/uaccess.h>
#include <asm/page.h>
-#include <asm/pgalloc.h>
-#include <asm/pgtable.h>
#include <asm/delay.h>
#include <asm/processor.h>
#include <asm/psr.h>
@@ -145,10 +143,10 @@ void show_regs(struct pt_regs *r)
}
/*
- * The show_stack is an external API which we do not use ourselves.
+ * The show_stack() is external API which we do not use ourselves.
* The oops is printed in die_if_kernel.
*/
-void show_stack(struct task_struct *tsk, unsigned long *_ksp)
+void show_stack(struct task_struct *tsk, unsigned long *_ksp, const char *loglvl)
{
unsigned long pc, fp;
unsigned long task_base;
@@ -170,11 +168,11 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
break;
rw = (struct reg_window32 *) fp;
pc = rw->ins[7];
- printk("[%08lx : ", pc);
- printk("%pS ] ", (void *) pc);
+ printk("%s[%08lx : ", loglvl, pc);
+ printk("%s%pS ] ", loglvl, (void *) pc);
fp = rw->ins[6];
} while (++count < 16);
- printk("\n");
+ printk("%s\n", loglvl);
}
/*
@@ -258,33 +256,6 @@ clone_stackframe(struct sparc_stackf __user *dst,
return sp;
}
-asmlinkage int sparc_do_fork(unsigned long clone_flags,
- unsigned long stack_start,
- struct pt_regs *regs,
- unsigned long stack_size)
-{
- unsigned long parent_tid_ptr, child_tid_ptr;
- unsigned long orig_i1 = regs->u_regs[UREG_I1];
- long ret;
-
- parent_tid_ptr = regs->u_regs[UREG_I2];
- child_tid_ptr = regs->u_regs[UREG_I4];
-
- ret = do_fork(clone_flags, stack_start, stack_size,
- (int __user *) parent_tid_ptr,
- (int __user *) child_tid_ptr);
-
- /* If we get an error and potentially restart the system
- * call, we're screwed because copy_thread() clobbered
- * the parent's %o1. So detect that case and restore it
- * here.
- */
- if ((unsigned long)ret >= -ERESTART_RESTARTBLOCK)
- regs->u_regs[UREG_I1] = orig_i1;
-
- return ret;
-}
-
/* Copy a Sparc thread. The fork() return value conventions
* under SunOS are nothing short of bletcherous:
* Parent --> %o0 == childs pid, %o1 == 0
@@ -301,8 +272,8 @@ asmlinkage int sparc_do_fork(unsigned long clone_flags,
extern void ret_from_fork(void);
extern void ret_from_kernel_thread(void);
-int copy_thread(unsigned long clone_flags, unsigned long sp,
- unsigned long arg, struct task_struct *p)
+int copy_thread(unsigned long clone_flags, unsigned long sp, unsigned long arg,
+ struct task_struct *p, unsigned long tls)
{
struct thread_info *ti = task_thread_info(p);
struct pt_regs *childregs, *regs = current_pt_regs();
@@ -404,60 +375,11 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
regs->u_regs[UREG_I1] = 0;
if (clone_flags & CLONE_SETTLS)
- childregs->u_regs[UREG_G7] = regs->u_regs[UREG_I3];
+ childregs->u_regs[UREG_G7] = tls;
return 0;
}
-/*
- * fill in the fpu structure for a core dump.
- */
-int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs)
-{
- if (used_math()) {
- memset(fpregs, 0, sizeof(*fpregs));
- fpregs->pr_q_entrysize = 8;
- return 1;
- }
-#ifdef CONFIG_SMP
- if (test_thread_flag(TIF_USEDFPU)) {
- put_psr(get_psr() | PSR_EF);
- fpsave(&current->thread.float_regs[0], &current->thread.fsr,
- &current->thread.fpqueue[0], &current->thread.fpqdepth);
- if (regs != NULL) {
- regs->psr &= ~(PSR_EF);
- clear_thread_flag(TIF_USEDFPU);
- }
- }
-#else
- if (current == last_task_used_math) {
- put_psr(get_psr() | PSR_EF);
- fpsave(&current->thread.float_regs[0], &current->thread.fsr,
- &current->thread.fpqueue[0], &current->thread.fpqdepth);
- if (regs != NULL) {
- regs->psr &= ~(PSR_EF);
- last_task_used_math = NULL;
- }
- }
-#endif
- memcpy(&fpregs->pr_fr.pr_regs[0],
- &current->thread.float_regs[0],
- (sizeof(unsigned long) * 32));
- fpregs->pr_fsr = current->thread.fsr;
- fpregs->pr_qcnt = current->thread.fpqdepth;
- fpregs->pr_q_entrysize = 8;
- fpregs->pr_en = 1;
- if(fpregs->pr_qcnt != 0) {
- memcpy(&fpregs->pr_q[0],
- &current->thread.fpqueue[0],
- sizeof(struct fpq) * fpregs->pr_qcnt);
- }
- /* Zero out the rest. */
- memset(&fpregs->pr_q[fpregs->pr_qcnt], 0,
- sizeof(struct fpq) * (32 - fpregs->pr_qcnt));
- return 1;
-}
-
unsigned long get_wchan(struct task_struct *task)
{
unsigned long pc, fp, bias = 0;