arm/arm64: processor.[ch] cleanups

Add 'const' to a few global arrays that are constant. Also,
no need for default_vector_handler to be static. unittests
may want to reset vector handlers to it.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

lib/arm/processor.c

@@ -20,7 +20,7 @@ static const char *processor_modes[] = {
 	"UK12_32", "UK13_32", "UK14_32", "SYS_32"
 };
 
-static char *vector_names[] = {
+static const char *vector_names[] = {
 	"rst", "und", "svc", "pabt", "dabt", "addrexcptn", "irq", "fiq"
 };
 

lib/arm64/asm/processor.h

@@ -47,6 +47,8 @@ typedef void (*exception_fn)(struct pt_regs *regs, unsigned int esr);
 extern void install_vector_handler(enum vector v, vector_fn fn);
 extern void install_exception_handler(enum vector v, unsigned int ec,
 				      exception_fn fn);
+extern void default_vector_handler(enum vector v, struct pt_regs *regs,
+				   unsigned int esr);
 
 extern void show_regs(struct pt_regs *regs);
 extern void *get_sp(void);

lib/arm64/processor.c

@@ -10,7 +10,7 @@
 #include <asm/processor.h>
 #include <asm/esr.h>
 
-static char *vector_names[] = {
+static const char *vector_names[] = {
 	"el1t_sync",
 	"el1t_irq",
 	"el1t_fiq",
@@ -29,7 +29,7 @@ static char *vector_names[] = {
 	"el0_error_32",
 };
 
-static char *ec_names[EC_MAX] = {
+static const char *ec_names[EC_MAX] = {
 	[ESR_EL1_EC_UNKNOWN]		= "UNKNOWN",
 	[ESR_EL1_EC_WFI]		= "WFI",
 	[ESR_EL1_EC_CP15_32]		= "CP15_32",
@@ -142,8 +142,8 @@ void install_exception_handler(enum vector v, unsigned int ec, exception_fn fn)
 		exception_handlers[v][ec] = fn;
 }
 
-static void default_vector_handler(enum vector v, struct pt_regs *regs,
-				   unsigned int esr)
+void default_vector_handler(enum vector v, struct pt_regs *regs,
+			    unsigned int esr)
 {
 	unsigned int ec = esr >> ESR_EL1_EC_SHIFT;