[S390] perf: add DWARF register lookup for s390

ifndef NO_DWARF

PERF_HAVE_DWARF_REGS := 1

LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o

endif

/*

 * Mapping of DWARF debug register numbers into register names.

 *

 *    Copyright IBM Corp. 2010

 *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>,

 *

 */

#include <libio.h>

#include <dwarf-regs.h>

#define NUM_GPRS 16

static const char *gpr_names[NUM_GPRS] = {

	"%r0", "%r1",  "%r2",  "%r3",  "%r4",  "%r5",  "%r6",  "%r7",

	"%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15",

};

const char *get_arch_regstr(unsigned int n)

{

	return (n >= NUM_GPRS) ? NULL : gpr_names[n];

}