perf tools: Add interface to arch registers sets

Adding header files to access unified API for arch registers.

  util/perf_regs.h - global perf_reg declarations
  arch/x86/include/perf_regs.h - x86 arch specific

Adding perf_reg_name function to obtain register name based on the reg
ID value, and PERF_REGS_MASK macro with mask definition of all current
arch registers (will be used in unwind patches).

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: "Frank Ch. Eigler" <fche@redhat.com>
Cc: Arun Sharma <asharma@fb.com>
Cc: Benjamin Redelings <benjamin.redelings@nescent.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Frank Ch. Eigler <fche@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
Cc: Ulrich Drepper <drepper@gmail.com>
Link: http://lkml.kernel.org/r/1344345647-11536-9-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2012-08-07 15:20:43 +02:00 committed by Arnaldo Carvalho de Melo
parent 239cc47819
commit 2bcd355b71
3 changed files with 106 additions and 1 deletions

View file

@ -55,13 +55,15 @@ ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
-e s/s390x/s390/ -e s/parisc64/parisc/ \
-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
-e s/sh[234].*/sh/ )
NO_PERF_REGS := 1
CC = $(CROSS_COMPILE)gcc
AR = $(CROSS_COMPILE)ar
# Additional ARCH settings for x86
ifeq ($(ARCH),i386)
ARCH := x86
ARCH := x86
NO_PERF_REGS := 0
endif
ifeq ($(ARCH),x86_64)
ARCH := x86
@ -74,6 +76,7 @@ ifeq ($(ARCH),x86_64)
ARCH_CFLAGS := -DARCH_X86_64
ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
endif
NO_PERF_REGS := 0
endif
# Treat warnings as errors unless directed not to
@ -326,6 +329,7 @@ LIB_H += $(TRACE_EVENT_DIR)event-parse.h
LIB_H += util/target.h
LIB_H += util/rblist.h
LIB_H += util/intlist.h
LIB_H += util/perf_regs.h
LIB_OBJS += $(OUTPUT)util/abspath.o
LIB_OBJS += $(OUTPUT)util/alias.o
@ -704,6 +708,13 @@ else
endif
endif
ifeq ($(NO_PERF_REGS),0)
ifeq ($(ARCH),x86)
LIB_H += arch/x86/include/perf_regs.h
endif
else
BASIC_CFLAGS += -DNO_PERF_REGS
endif
ifdef NO_STRLCPY
BASIC_CFLAGS += -DNO_STRLCPY

View file

@ -0,0 +1,80 @@
#ifndef ARCH_PERF_REGS_H
#define ARCH_PERF_REGS_H
#include <stdlib.h>
#include "../../util/types.h"
#include "../../../../../arch/x86/include/asm/perf_regs.h"
#ifndef ARCH_X86_64
#define PERF_REGS_MASK ((1ULL << PERF_REG_X86_32_MAX) - 1)
#else
#define REG_NOSUPPORT ((1ULL << PERF_REG_X86_DS) | \
(1ULL << PERF_REG_X86_ES) | \
(1ULL << PERF_REG_X86_FS) | \
(1ULL << PERF_REG_X86_GS))
#define PERF_REGS_MASK (((1ULL << PERF_REG_X86_64_MAX) - 1) & ~REG_NOSUPPORT)
#endif
#define PERF_REG_IP PERF_REG_X86_IP
#define PERF_REG_SP PERF_REG_X86_SP
static inline const char *perf_reg_name(int id)
{
switch (id) {
case PERF_REG_X86_AX:
return "AX";
case PERF_REG_X86_BX:
return "BX";
case PERF_REG_X86_CX:
return "CX";
case PERF_REG_X86_DX:
return "DX";
case PERF_REG_X86_SI:
return "SI";
case PERF_REG_X86_DI:
return "DI";
case PERF_REG_X86_BP:
return "BP";
case PERF_REG_X86_SP:
return "SP";
case PERF_REG_X86_IP:
return "IP";
case PERF_REG_X86_FLAGS:
return "FLAGS";
case PERF_REG_X86_CS:
return "CS";
case PERF_REG_X86_SS:
return "SS";
case PERF_REG_X86_DS:
return "DS";
case PERF_REG_X86_ES:
return "ES";
case PERF_REG_X86_FS:
return "FS";
case PERF_REG_X86_GS:
return "GS";
#ifdef ARCH_X86_64
case PERF_REG_X86_R8:
return "R8";
case PERF_REG_X86_R9:
return "R9";
case PERF_REG_X86_R10:
return "R10";
case PERF_REG_X86_R11:
return "R11";
case PERF_REG_X86_R12:
return "R12";
case PERF_REG_X86_R13:
return "R13";
case PERF_REG_X86_R14:
return "R14";
case PERF_REG_X86_R15:
return "R15";
#endif /* ARCH_X86_64 */
default:
return NULL;
}
return NULL;
}
#endif /* ARCH_PERF_REGS_H */

View file

@ -0,0 +1,14 @@
#ifndef __PERF_REGS_H
#define __PERF_REGS_H
#ifndef NO_PERF_REGS
#include <perf_regs.h>
#else
#define PERF_REGS_MASK 0
static inline const char *perf_reg_name(int id __used)
{
return NULL;
}
#endif /* NO_PERF_REGS */
#endif /* __PERF_REGS_H */