From 9e0d5c451f9e559dd06af3fff49a0d2068c634c4 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Fri, 17 Aug 2018 17:00:08 +0200 Subject: parisc: Consolidate unwind initialization calls Signed-off-by: Helge Deller --- arch/parisc/kernel/traps.c | 35 +++++------------------------------ 1 file changed, 5 insertions(+), 30 deletions(-) (limited to 'arch/parisc/kernel/traps.c') diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c index 9372a41c8812..68f10f87073d 100644 --- a/arch/parisc/kernel/traps.c +++ b/arch/parisc/kernel/traps.c @@ -45,7 +45,7 @@ #include "../math-emu/math-emu.h" /* for handle_fpe() */ -static void parisc_show_stack(struct task_struct *task, unsigned long *sp, +static void parisc_show_stack(struct task_struct *task, struct pt_regs *regs); static int printbinary(char *buf, unsigned long x, int nbits) @@ -152,7 +152,7 @@ void show_regs(struct pt_regs *regs) printk("%s IAOQ[1]: %pS\n", level, (void *) regs->iaoq[1]); printk("%s RP(r2): %pS\n", level, (void *) regs->gr[2]); - parisc_show_stack(current, NULL, regs); + parisc_show_stack(current, regs); } } @@ -185,44 +185,19 @@ static void do_show_stack(struct unwind_frame_info *info) printk(KERN_CRIT "\n"); } -static void parisc_show_stack(struct task_struct *task, unsigned long *sp, +static void parisc_show_stack(struct task_struct *task, struct pt_regs *regs) { struct unwind_frame_info info; - struct task_struct *t; - t = task ? task : current; - if (regs) { - unwind_frame_init(&info, t, regs); - goto show_stack; - } - - if (t == current) { - unsigned long sp; - -HERE: - asm volatile ("copy %%r30, %0" : "=r"(sp)); - { - struct pt_regs r; - - memset(&r, 0, sizeof(struct pt_regs)); - r.iaoq[0] = (unsigned long)&&HERE; - r.gr[2] = (unsigned long)__builtin_return_address(0); - r.gr[30] = sp; - - unwind_frame_init(&info, current, &r); - } - } else { - unwind_frame_init_from_blocked_task(&info, t); - } + unwind_frame_init_task(&info, task, regs); -show_stack: do_show_stack(&info); } void show_stack(struct task_struct *t, unsigned long *sp) { - return parisc_show_stack(t, sp, NULL); + parisc_show_stack(t, NULL); } int is_valid_bugaddr(unsigned long iaoq) -- cgit v1.2.3-59-g8ed1b