Commit 2fa5ebe3 authored by Huacai Chen's avatar Huacai Chen
Browse files

tools/perf: Add basic support for LoongArch 



Add basic support for LoongArch, which is very similar to the MIPS
version.

Signed-off-by: default avatarMing Wang <wangming01@loongson.cn>
Signed-off-by: default avatarHuacai Chen <chenhuacai@loongson.cn>
parent 22f367a6

tools/arch/loongarch/include/uapi/asm/perf_regs.h

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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

#ifndef _ASM_LOONGARCH_PERF_REGS_H

#define _ASM_LOONGARCH_PERF_REGS_H



enum perf_event_loongarch_regs {

	PERF_REG_LOONGARCH_PC,

	PERF_REG_LOONGARCH_R1,

	PERF_REG_LOONGARCH_R2,

	PERF_REG_LOONGARCH_R3,

	PERF_REG_LOONGARCH_R4,

	PERF_REG_LOONGARCH_R5,

	PERF_REG_LOONGARCH_R6,

	PERF_REG_LOONGARCH_R7,

	PERF_REG_LOONGARCH_R8,

	PERF_REG_LOONGARCH_R9,

	PERF_REG_LOONGARCH_R10,

	PERF_REG_LOONGARCH_R11,

	PERF_REG_LOONGARCH_R12,

	PERF_REG_LOONGARCH_R13,

	PERF_REG_LOONGARCH_R14,

	PERF_REG_LOONGARCH_R15,

	PERF_REG_LOONGARCH_R16,

	PERF_REG_LOONGARCH_R17,

	PERF_REG_LOONGARCH_R18,

	PERF_REG_LOONGARCH_R19,

	PERF_REG_LOONGARCH_R20,

	PERF_REG_LOONGARCH_R21,

	PERF_REG_LOONGARCH_R22,

	PERF_REG_LOONGARCH_R23,

	PERF_REG_LOONGARCH_R24,

	PERF_REG_LOONGARCH_R25,

	PERF_REG_LOONGARCH_R26,

	PERF_REG_LOONGARCH_R27,

	PERF_REG_LOONGARCH_R28,

	PERF_REG_LOONGARCH_R29,

	PERF_REG_LOONGARCH_R30,

	PERF_REG_LOONGARCH_R31,

	PERF_REG_LOONGARCH_MAX,

};

#endif /* _ASM_LOONGARCH_PERF_REGS_H */

tools/arch/loongarch/include/uapi/asm/unistd.h

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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

/*

 * Copyright (C) 2020-2023 Loongson Technology Corporation Limited

 */



#define __ARCH_WANT_SYS_CLONE

#define __ARCH_WANT_SYS_CLONE3



#include <asm-generic/unistd.h>

tools/perf/Makefile.config

+9 −3
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@@ -38,7 +38,7 @@ ifneq ($(NO_SYSCALL_TABLE),1) 
      NO_SYSCALL_TABLE := 0

    endif

  else

    ifeq ($(SRCARCH),$(filter $(SRCARCH),powerpc arm64 s390 mips))

    ifeq ($(SRCARCH),$(filter $(SRCARCH),powerpc arm64 s390 mips loongarch))

      NO_SYSCALL_TABLE := 0

    endif

  endif
@@ -80,6 +80,12 @@ ifeq ($(SRCARCH),arm64) 
  LIBUNWIND_LIBS = -lunwind -lunwind-aarch64

endif



ifeq ($(SRCARCH),loongarch)

  NO_PERF_REGS := 0

  CFLAGS += -I$(OUTPUT)arch/loongarch/include/generated

  LIBUNWIND_LIBS = -lunwind -lunwind-loongarch64

endif



ifeq ($(SRCARCH),riscv)

  NO_PERF_REGS := 0

endif
@@ -107,7 +113,7 @@ endif 
# Disable it on all other architectures in case libdw unwind

# support is detected in system. Add supported architectures

# to the check.

ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv))

ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv loongarch))

  NO_LIBDW_DWARF_UNWIND := 1

endif
@@ -129,7 +135,7 @@ endef 
ifdef LIBUNWIND_DIR

  LIBUNWIND_CFLAGS  = -I$(LIBUNWIND_DIR)/include

  LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib

  LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64

  LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64 loongarch

  $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))

endif

tools/perf/arch/loongarch/Build

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perf-y += util/

tools/perf/arch/loongarch/Makefile

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# SPDX-License-Identifier: GPL-2.0

ifndef NO_DWARF

PERF_HAVE_DWARF_REGS := 1

endif

PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1

PERF_HAVE_JITDUMP := 1



#

# Syscall table generation for perf

#



out    := $(OUTPUT)arch/loongarch/include/generated/asm

header := $(out)/syscalls.c

incpath := $(srctree)/tools

sysdef := $(srctree)/tools/arch/loongarch/include/uapi/asm/unistd.h

sysprf := $(srctree)/tools/perf/arch/loongarch/entry/syscalls/

systbl := $(sysprf)/mksyscalltbl



# Create output directory if not already present

_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')



$(header): $(sysdef) $(systbl)

	$(Q)$(SHELL) '$(systbl)' '$(CC)' '$(HOSTCC)' $(incpath) $(sysdef) > $@



clean::

	$(call QUIET_CLEAN, loongarch) $(RM) $(header)



archheaders: $(header)