sh: stacktrace/lockdep/irqflags tracing support. (afbfb52e) · Commits · e / devices / android_kernel_teracube_emerald

arch/sh/Kconfig

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Original line number	Diff line number	Diff line
		menu "Kernel hacking"

		config TRACE_IRQFLAGS_SUPPORT
		bool
		default y

		source "lib/Kconfig.debug"

		config SH_STANDARD_BIOS

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		@@ -21,3 +21,4 @@ obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
		obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
		obj-$(CONFIG_APM) += apm.o
		obj-$(CONFIG_PM) += pm.o
		obj-$(CONFIG_STACKTRACE) += stacktrace.o

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		@@ -184,6 +184,11 @@ trap_entry:
		add r15,r8
		mov.l r9,@r8
		mov r9,r8
		#ifdef CONFIG_TRACE_IRQFLAGS
		mov.l 5f, r9
		jsr @r9
		nop
		#endif
		sti
		bra system_call
		nop
		@@ -193,6 +198,9 @@ trap_entry:
		2: .long break_point_trap_software
		3: .long NR_syscalls
		4: .long sys_call_table
		#ifdef CONFIG_TRACE_IRQFLAGS
		5: .long trace_hardirqs_on
		#endif

		#if defined(CONFIG_SH_STANDARD_BIOS)
		/* Unwind the stack and jmp to the debug entry */
		@@ -255,6 +263,11 @@ ENTRY(address_error_handler)

		restore_all:
		cli
		#ifdef CONFIG_TRACE_IRQFLAGS
		mov.l 3f, r0
		jsr @r0
		nop
		#endif
		mov r15,r0
		mov.l $cpu_mode,r2
		mov #OFF_SR,r3
		@@ -307,6 +320,9 @@ $current_thread_info:
		.long __current_thread_info
		$cpu_mode:
		.long __cpu_mode
		#ifdef CONFIG_TRACE_IRQFLAGS
		3: .long trace_hardirqs_off
		#endif

		! common exception handler
		#include "../../entry-common.S"

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