[ARM] 4453/1: Fully Decode ARM instruction set state in show_regs() tombstone

The ARM show_regs() tombstone only partially decodes which ARM ISA was
executing at the time a fault occurred displaying either "(T)" for the
Thumb case or nothing at all for other cases.  This patch therefore
explicitly identifies which state the processor is in at the time of
a fault: ARM, Thumb, Jazelle or JazelleEE.

Signed-off-by: George G. Davis <gdavis@mvista.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 6 insertions, 2 deletions

diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 842361777d4e..93b7f8e22dcc 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -44,6 +44,10 @@ static const char *processor_modes[] = {
   "UK8_32" , "UK9_32" , "UK10_32", "UND_32" , "UK12_32", "UK13_32", "UK14_32", "SYS_32"
 };
 
+static const char *isa_modes[] = {
+  "ARM" , "Thumb" , "Jazelle", "ThumbEE"
+};
+
 extern void setup_mm_for_reboot(char mode);
 
 static volatile int hlt_counter;
@@ -230,11 +234,11 @@ void __show_regs(struct pt_regs *regs)
         buf[3] = flags & PSR_V_BIT ? 'V' : 'v';
         buf[4] = '\0';
 
-        printk("Flags: %s  IRQs o%s  FIQs o%s  Mode %s%s  Segment %s\n",
+        printk("Flags: %s  IRQs o%s  FIQs o%s  Mode %s  ISA %s  Segment %s\n",
                 buf, interrupts_enabled(regs) ? "n" : "ff",
                 fast_interrupts_enabled(regs) ? "n" : "ff",
                 processor_modes[processor_mode(regs)],
-                thumb_mode(regs) ? " (T)" : "",
+                isa_modes[isa_mode(regs)],
                 get_fs() == get_ds() ? "kernel" : "user");
 #ifdef CONFIG_CPU_CP15
         {