#include <asm/alternative.h>
#include <asm/compat.h>
#include <asm/cacheflush.h>
+#include <asm/exec.h>
#include <asm/fpsimd.h>
#include <asm/mmu_context.h>
#include <asm/processor.h>
printk("pc : [<%016llx>] lr : [<%016llx>] pstate: %08llx\n",
regs->pc, lr, regs->pstate);
printk("sp : %016llx\n", sp);
- for (i = top_reg; i >= 0; i--) {
+
+ i = top_reg;
+
+ while (i >= 0) {
printk("x%-2d: %016llx ", i, regs->regs[i]);
- if (i % 2 == 0)
- printk("\n");
+ i--;
+
+ if (i % 2 == 0) {
+ pr_cont("x%-2d: %016llx ", i, regs->regs[i]);
+ i--;
+ }
+
+ pr_cont("\n");
}
printk("\n");
}
}
/* Restore the UAO state depending on next's addr_limit */
-static void uao_thread_switch(struct task_struct *next)
+void uao_thread_switch(struct task_struct *next)
{
if (IS_ENABLED(CONFIG_ARM64_UAO)) {
if (task_thread_info(next)->addr_limit == KERNEL_DS)
unsigned long get_wchan(struct task_struct *p)
{
struct stackframe frame;
- unsigned long stack_page;
+ unsigned long stack_page, ret = 0;
int count = 0;
if (!p || p == current || p->state == TASK_RUNNING)
return 0;
+ stack_page = (unsigned long)try_get_task_stack(p);
+ if (!stack_page)
+ return 0;
+
frame.fp = thread_saved_fp(p);
frame.sp = thread_saved_sp(p);
frame.pc = thread_saved_pc(p);
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
frame.graph = p->curr_ret_stack;
#endif
- stack_page = (unsigned long)task_stack_page(p);
do {
if (frame.sp < stack_page ||
frame.sp >= stack_page + THREAD_SIZE ||
unwind_frame(p, &frame))
- return 0;
- if (!in_sched_functions(frame.pc))
- return frame.pc;
+ goto out;
+ if (!in_sched_functions(frame.pc)) {
+ ret = frame.pc;
+ goto out;
+ }
} while (count ++ < 16);
- return 0;
+
+out:
+ put_task_stack(p);
+ return ret;
}
unsigned long arch_align_stack(unsigned long sp)