diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2006-12-04 18:17:28 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2006-12-06 10:45:40 +0900 |
| commit | afbfb52e47273a440df33274452c603e8c332de2 (patch) | |
| tree | 041dc70061a67e787b362959298e093830b4b4d7 /arch/sh/kernel/cpu/sh2 | |
| parent | c03c69610bfa728805deceeb624ee4268c722a5a (diff) | |
sh: stacktrace/lockdep/irqflags tracing support.
Wire up all of the essentials for lockdep..
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/cpu/sh2')
| -rw-r--r-- | arch/sh/kernel/cpu/sh2/entry.S | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/sh/kernel/cpu/sh2/entry.S b/arch/sh/kernel/cpu/sh2/entry.S index 298d9191909d..34d51b3745ea 100644 --- a/arch/sh/kernel/cpu/sh2/entry.S +++ b/arch/sh/kernel/cpu/sh2/entry.S @@ -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" |