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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/arch/sh/kernel/traps.c
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@@ -38,8 +38,8 @@
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 			task_pid_nr(current), task_stack_page(current) + 1);
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 	if (!user_mode(regs) || in_interrupt())
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-		dump_mem("Stack: ", regs->regs[15], THREAD_SIZE +
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-			 (unsigned long)task_stack_page(current));
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+		dump_mem("Stack: ", KERN_DEFAULT, regs->regs[15],
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+			THREAD_SIZE + (unsigned long)task_stack_page(current));
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 	notify_die(DIE_OOPS, str, regs, err, 255, SIGSEGV);
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@@ -57,7 +57,7 @@
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 	if (panic_on_oops)
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 		panic("Fatal exception");
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-	do_exit(SIGSEGV);
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+	make_task_dead(SIGSEGV);
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 }
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 void die_if_kernel(const char *str, struct pt_regs *regs, long err)
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@@ -118,7 +118,7 @@
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 	if (addr < PAGE_OFFSET)
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 		return 0;
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-	if (probe_kernel_address((insn_size_t *)addr, opcode))
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+	if (get_kernel_nofault(opcode, (insn_size_t *)addr))
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 		return 0;
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 	if (opcode == TRAPA_BUG_OPCODE)
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 		return 1;
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@@ -141,7 +141,7 @@
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 		       SIGTRAP) == NOTIFY_STOP)
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 		return;
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-	force_sig(SIGTRAP, current);
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+	force_sig(SIGTRAP);
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 }
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 /*
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@@ -167,13 +167,23 @@
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 	}
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 #endif
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-	force_sig(SIGTRAP, current);
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+	force_sig(SIGTRAP);
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 }
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+
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+#ifdef CONFIG_DYNAMIC_FTRACE
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+extern void arch_ftrace_nmi_enter(void);
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+extern void arch_ftrace_nmi_exit(void);
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+#else
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+static inline void arch_ftrace_nmi_enter(void) { }
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+static inline void arch_ftrace_nmi_exit(void) { }
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+#endif
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 BUILD_TRAP_HANDLER(nmi)
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 {
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 	unsigned int cpu = smp_processor_id();
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 	TRAP_HANDLER_DECL;
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+
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+	arch_ftrace_nmi_enter();
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187
 
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 	nmi_enter();
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 	nmi_count(cpu)++;
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@@ -190,4 +200,6 @@
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 	}
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 	nmi_exit();
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+
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+	arch_ftrace_nmi_exit();
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 }