tools/perf: Add basic support for LoongArch

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

Signed-off-by: Ming Wang <wangming01@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Huacai Chen 2023-05-01 17:19:59 +08:00
Родитель 22f367a689
Коммит 2fa5ebe3bc
21 изменённых файлов: 518 добавлений и 3 удалений

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@ -0,0 +1,40 @@
/* 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 */

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@ -0,0 +1,9 @@
/* 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>

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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

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@ -0,0 +1 @@
perf-y += util/

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@ -0,0 +1,28 @@
# 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)

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@ -0,0 +1,45 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Perf annotate functions.
*
* Copyright (C) 2020-2023 Loongson Technology Corporation Limited
*/
static
struct ins_ops *loongarch__associate_ins_ops(struct arch *arch, const char *name)
{
struct ins_ops *ops = NULL;
if (!strncmp(name, "beqz", 4) ||
!strncmp(name, "bnez", 4) ||
!strncmp(name, "beq", 3) ||
!strncmp(name, "bne", 3) ||
!strncmp(name, "blt", 3) ||
!strncmp(name, "bge", 3) ||
!strncmp(name, "bltu", 4) ||
!strncmp(name, "bgeu", 4) ||
!strncmp(name, "bl", 2))
ops = &call_ops;
else if (!strncmp(name, "jirl", 4))
ops = &ret_ops;
else if (name[0] == 'b')
ops = &jump_ops;
else
return NULL;
arch__associate_ins_ops(arch, name, ops);
return ops;
}
static
int loongarch__annotate_init(struct arch *arch, char *cpuid __maybe_unused)
{
if (!arch->initialized) {
arch->associate_instruction_ops = loongarch__associate_ins_ops;
arch->initialized = true;
arch->objdump.comment_char = '#';
}
return 0;
}

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@ -0,0 +1,61 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
#
# Generate system call table for perf. Derived from
# powerpc script.
#
# Author(s): Ming Wang <wangming01@loongson.cn>
# Author(s): Huacai Chen <chenhuacai@loongson.cn>
# Copyright (C) 2020-2023 Loongson Technology Corporation Limited
gcc=$1
hostcc=$2
incpath=$3
input=$4
if ! test -r $input; then
echo "Could not read input file" >&2
exit 1
fi
create_table_from_c()
{
local sc nr last_sc
create_table_exe=`mktemp ${TMPDIR:-/tmp}/create-table-XXXXXX`
{
cat <<-_EoHEADER
#include <stdio.h>
#include "$input"
int main(int argc, char *argv[])
{
_EoHEADER
while read sc nr; do
printf "%s\n" " printf(\"\\t[%d] = \\\"$sc\\\",\\n\", $nr);"
last_sc=$nr
done
printf "%s\n" " printf(\"#define SYSCALLTBL_LOONGARCH_MAX_ID %d\\n\", $last_sc);"
printf "}\n"
} | $hostcc -I $incpath/include/uapi -o $create_table_exe -x c -
$create_table_exe
rm -f $create_table_exe
}
create_table()
{
echo "static const char *syscalltbl_loongarch[] = {"
create_table_from_c
echo "};"
}
$gcc -E -dM -x c -I $incpath/include/uapi $input \
|sed -ne 's/^#define __NR_//p' \
|sort -t' ' -k2 -n \
|create_table

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@ -0,0 +1,16 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* dwarf-regs-table.h : Mapping of DWARF debug register numbers into
* register names.
*
* Copyright (C) 2020-2023 Loongson Technology Corporation Limited
*/
#ifdef DEFINE_DWARF_REGSTR_TABLE
static const char * const loongarch_regstr_tbl[] = {
"%r0", "%r1", "%r2", "%r3", "%r4", "%r5", "%r6", "%r7",
"%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15",
"%r16", "%r17", "%r18", "%r19", "%r20", "%r21", "%r22", "%r23",
"%r24", "%r25", "%r26", "%r27", "%r28", "%r29", "%r30", "%r31",
};
#endif

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@ -0,0 +1,15 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef ARCH_PERF_REGS_H
#define ARCH_PERF_REGS_H
#include <stdlib.h>
#include <linux/types.h>
#include <asm/perf_regs.h>
#define PERF_REGS_MAX PERF_REG_LOONGARCH_MAX
#define PERF_REG_IP PERF_REG_LOONGARCH_PC
#define PERF_REG_SP PERF_REG_LOONGARCH_R3
#define PERF_REGS_MASK ((1ULL << PERF_REG_LOONGARCH_MAX) - 1)
#endif /* ARCH_PERF_REGS_H */

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@ -0,0 +1,5 @@
perf-y += perf_regs.o
perf-$(CONFIG_DWARF) += dwarf-regs.o
perf-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind.o
perf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o

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@ -0,0 +1,44 @@
// SPDX-License-Identifier: GPL-2.0
/*
* dwarf-regs.c : Mapping of DWARF debug register numbers into register names.
*
* Copyright (C) 2020-2023 Loongson Technology Corporation Limited
*/
#include <stdio.h>
#include <errno.h> /* for EINVAL */
#include <string.h> /* for strcmp */
#include <dwarf-regs.h>
struct pt_regs_dwarfnum {
const char *name;
unsigned int dwarfnum;
};
static struct pt_regs_dwarfnum loongarch_gpr_table[] = {
{"%r0", 0}, {"%r1", 1}, {"%r2", 2}, {"%r3", 3},
{"%r4", 4}, {"%r5", 5}, {"%r6", 6}, {"%r7", 7},
{"%r8", 8}, {"%r9", 9}, {"%r10", 10}, {"%r11", 11},
{"%r12", 12}, {"%r13", 13}, {"%r14", 14}, {"%r15", 15},
{"%r16", 16}, {"%r17", 17}, {"%r18", 18}, {"%r19", 19},
{"%r20", 20}, {"%r21", 21}, {"%r22", 22}, {"%r23", 23},
{"%r24", 24}, {"%r25", 25}, {"%r26", 26}, {"%r27", 27},
{"%r28", 28}, {"%r29", 29}, {"%r30", 30}, {"%r31", 31},
{NULL, 0}
};
const char *get_arch_regstr(unsigned int n)
{
n %= 32;
return loongarch_gpr_table[n].name;
}
int regs_query_register_offset(const char *name)
{
const struct pt_regs_dwarfnum *roff;
for (roff = loongarch_gpr_table; roff->name != NULL; roff++)
if (!strcmp(roff->name, name))
return roff->dwarfnum;
return -EINVAL;
}

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@ -0,0 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
#include "../../../util/perf_regs.h"
const struct sample_reg sample_reg_masks[] = {
SMPL_REG_END
};

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@ -0,0 +1,56 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2020-2023 Loongson Technology Corporation Limited */
#include <elfutils/libdwfl.h>
#include "../../util/unwind-libdw.h"
#include "../../util/perf_regs.h"
#include "../../util/sample.h"
bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg)
{
struct unwind_info *ui = arg;
struct regs_dump *user_regs = &ui->sample->user_regs;
Dwarf_Word dwarf_regs[PERF_REG_LOONGARCH_MAX];
#define REG(r) ({ \
Dwarf_Word val = 0; \
perf_reg_value(&val, user_regs, PERF_REG_LOONGARCH_##r); \
val; \
})
dwarf_regs[0] = 0;
dwarf_regs[1] = REG(R1);
dwarf_regs[2] = REG(R2);
dwarf_regs[3] = REG(R3);
dwarf_regs[4] = REG(R4);
dwarf_regs[5] = REG(R5);
dwarf_regs[6] = REG(R6);
dwarf_regs[7] = REG(R7);
dwarf_regs[8] = REG(R8);
dwarf_regs[9] = REG(R9);
dwarf_regs[10] = REG(R10);
dwarf_regs[11] = REG(R11);
dwarf_regs[12] = REG(R12);
dwarf_regs[13] = REG(R13);
dwarf_regs[14] = REG(R14);
dwarf_regs[15] = REG(R15);
dwarf_regs[16] = REG(R16);
dwarf_regs[17] = REG(R17);
dwarf_regs[18] = REG(R18);
dwarf_regs[19] = REG(R19);
dwarf_regs[20] = REG(R20);
dwarf_regs[21] = REG(R21);
dwarf_regs[22] = REG(R22);
dwarf_regs[23] = REG(R23);
dwarf_regs[24] = REG(R24);
dwarf_regs[25] = REG(R25);
dwarf_regs[26] = REG(R26);
dwarf_regs[27] = REG(R27);
dwarf_regs[28] = REG(R28);
dwarf_regs[29] = REG(R29);
dwarf_regs[30] = REG(R30);
dwarf_regs[31] = REG(R31);
dwfl_thread_state_register_pc(thread, REG(PC));
return dwfl_thread_state_registers(thread, 0, PERF_REG_LOONGARCH_MAX, dwarf_regs);
}

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@ -0,0 +1,82 @@
// SPDX-License-Identifier: GPL-2.0
#include <errno.h>
#include <libunwind.h>
#include "perf_regs.h"
#include "../../util/unwind.h"
#include "util/debug.h"
int libunwind__arch_reg_id(int regnum)
{
switch (regnum) {
case UNW_LOONGARCH64_R1:
return PERF_REG_LOONGARCH_R1;
case UNW_LOONGARCH64_R2:
return PERF_REG_LOONGARCH_R2;
case UNW_LOONGARCH64_R3:
return PERF_REG_LOONGARCH_R3;
case UNW_LOONGARCH64_R4:
return PERF_REG_LOONGARCH_R4;
case UNW_LOONGARCH64_R5:
return PERF_REG_LOONGARCH_R5;
case UNW_LOONGARCH64_R6:
return PERF_REG_LOONGARCH_R6;
case UNW_LOONGARCH64_R7:
return PERF_REG_LOONGARCH_R7;
case UNW_LOONGARCH64_R8:
return PERF_REG_LOONGARCH_R8;
case UNW_LOONGARCH64_R9:
return PERF_REG_LOONGARCH_R9;
case UNW_LOONGARCH64_R10:
return PERF_REG_LOONGARCH_R10;
case UNW_LOONGARCH64_R11:
return PERF_REG_LOONGARCH_R11;
case UNW_LOONGARCH64_R12:
return PERF_REG_LOONGARCH_R12;
case UNW_LOONGARCH64_R13:
return PERF_REG_LOONGARCH_R13;
case UNW_LOONGARCH64_R14:
return PERF_REG_LOONGARCH_R14;
case UNW_LOONGARCH64_R15:
return PERF_REG_LOONGARCH_R15;
case UNW_LOONGARCH64_R16:
return PERF_REG_LOONGARCH_R16;
case UNW_LOONGARCH64_R17:
return PERF_REG_LOONGARCH_R17;
case UNW_LOONGARCH64_R18:
return PERF_REG_LOONGARCH_R18;
case UNW_LOONGARCH64_R19:
return PERF_REG_LOONGARCH_R19;
case UNW_LOONGARCH64_R20:
return PERF_REG_LOONGARCH_R20;
case UNW_LOONGARCH64_R21:
return PERF_REG_LOONGARCH_R21;
case UNW_LOONGARCH64_R22:
return PERF_REG_LOONGARCH_R22;
case UNW_LOONGARCH64_R23:
return PERF_REG_LOONGARCH_R23;
case UNW_LOONGARCH64_R24:
return PERF_REG_LOONGARCH_R24;
case UNW_LOONGARCH64_R25:
return PERF_REG_LOONGARCH_R25;
case UNW_LOONGARCH64_R26:
return PERF_REG_LOONGARCH_R26;
case UNW_LOONGARCH64_R27:
return PERF_REG_LOONGARCH_R27;
case UNW_LOONGARCH64_R28:
return PERF_REG_LOONGARCH_R28;
case UNW_LOONGARCH64_R29:
return PERF_REG_LOONGARCH_R29;
case UNW_LOONGARCH64_R30:
return PERF_REG_LOONGARCH_R30;
case UNW_LOONGARCH64_R31:
return PERF_REG_LOONGARCH_R31;
case UNW_LOONGARCH64_PC:
return PERF_REG_LOONGARCH_PC;
default:
pr_err("unwind: invalid reg id %d\n", regnum);
return -EINVAL;
}
return -EINVAL;
}

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@ -40,6 +40,7 @@ arch/x86/lib/x86-opcode-map.txt
arch/x86/tools/gen-insn-attr-x86.awk
arch/arm/include/uapi/asm/perf_regs.h
arch/arm64/include/uapi/asm/perf_regs.h
arch/loongarch/include/uapi/asm/perf_regs.h
arch/mips/include/uapi/asm/perf_regs.h
arch/powerpc/include/uapi/asm/perf_regs.h
arch/s390/include/uapi/asm/perf_regs.h

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@ -149,6 +149,7 @@ static int arch__associate_ins_ops(struct arch* arch, const char *name, struct i
#include "arch/arm/annotate/instructions.c"
#include "arch/arm64/annotate/instructions.c"
#include "arch/csky/annotate/instructions.c"
#include "arch/loongarch/annotate/instructions.c"
#include "arch/mips/annotate/instructions.c"
#include "arch/x86/annotate/instructions.c"
#include "arch/powerpc/annotate/instructions.c"
@ -211,6 +212,13 @@ static struct arch architectures[] = {
.comment_char = '#',
},
},
{
.name = "loongarch",
.init = loongarch__annotate_init,
.objdump = {
.comment_char = '#',
},
},
};
static void ins__delete(struct ins_operands *ops)

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@ -14,6 +14,10 @@
#define EM_AARCH64 183 /* ARM 64 bit */
#endif
#ifndef EM_LOONGARCH
#define EM_LOONGARCH 258 /* LoongArch */
#endif
/* Define const char * {arch}_register_tbl[] */
#define DEFINE_DWARF_REGSTR_TABLE
#include "../arch/x86/include/dwarf-regs-table.h"
@ -25,6 +29,7 @@
#include "../arch/sparc/include/dwarf-regs-table.h"
#include "../arch/xtensa/include/dwarf-regs-table.h"
#include "../arch/mips/include/dwarf-regs-table.h"
#include "../arch/loongarch/include/dwarf-regs-table.h"
#define __get_dwarf_regstr(tbl, n) (((n) < ARRAY_SIZE(tbl)) ? (tbl)[(n)] : NULL)
@ -56,6 +61,8 @@ const char *get_dwarf_regstr(unsigned int n, unsigned int machine)
return __get_dwarf_regstr(xtensa_regstr_tbl, n);
case EM_MIPS:
return __get_dwarf_regstr(mips_regstr_tbl, n);
case EM_LOONGARCH:
return __get_dwarf_regstr(loongarch_regstr_tbl, n);
default:
pr_err("ELF MACHINE %x is not supported.\n", machine);
}

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@ -435,6 +435,8 @@ static const char *normalize_arch(char *arch)
return "mips";
if (!strncmp(arch, "sh", 2) && isdigit(arch[2]))
return "sh";
if (!strncmp(arch, "loongarch", 9))
return "loongarch";
return arch;
}

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@ -43,6 +43,9 @@ int jit_add_debug_info(Elf *e, uint64_t code_addr, void *debug, int nr_debug_ent
#elif defined(__riscv) && __riscv_xlen == 64
#define GEN_ELF_ARCH EM_RISCV
#define GEN_ELF_CLASS ELFCLASS64
#elif defined(__loongarch__)
#define GEN_ELF_ARCH EM_LOONGARCH
#define GEN_ELF_CLASS ELFCLASS64
#else
#error "unsupported architecture"
#endif

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@ -28,6 +28,7 @@ uint64_t __weak arch__user_reg_mask(void)
#include "../../arch/arm/include/uapi/asm/perf_regs.h"
#include "../../arch/csky/include/uapi/asm/perf_regs.h"
#include "../../arch/loongarch/include/uapi/asm/perf_regs.h"
#include "../../arch/mips/include/uapi/asm/perf_regs.h"
#include "../../arch/powerpc/include/uapi/asm/perf_regs.h"
#include "../../arch/riscv/include/uapi/asm/perf_regs.h"
@ -236,6 +237,79 @@ static const char *__perf_reg_name_csky(int id)
return NULL;
}
static inline const char *__perf_reg_name_loongarch(int id)
{
switch (id) {
case PERF_REG_LOONGARCH_PC:
return "PC";
case PERF_REG_LOONGARCH_R1:
return "%r1";
case PERF_REG_LOONGARCH_R2:
return "%r2";
case PERF_REG_LOONGARCH_R3:
return "%r3";
case PERF_REG_LOONGARCH_R4:
return "%r4";
case PERF_REG_LOONGARCH_R5:
return "%r5";
case PERF_REG_LOONGARCH_R6:
return "%r6";
case PERF_REG_LOONGARCH_R7:
return "%r7";
case PERF_REG_LOONGARCH_R8:
return "%r8";
case PERF_REG_LOONGARCH_R9:
return "%r9";
case PERF_REG_LOONGARCH_R10:
return "%r10";
case PERF_REG_LOONGARCH_R11:
return "%r11";
case PERF_REG_LOONGARCH_R12:
return "%r12";
case PERF_REG_LOONGARCH_R13:
return "%r13";
case PERF_REG_LOONGARCH_R14:
return "%r14";
case PERF_REG_LOONGARCH_R15:
return "%r15";
case PERF_REG_LOONGARCH_R16:
return "%r16";
case PERF_REG_LOONGARCH_R17:
return "%r17";
case PERF_REG_LOONGARCH_R18:
return "%r18";
case PERF_REG_LOONGARCH_R19:
return "%r19";
case PERF_REG_LOONGARCH_R20:
return "%r20";
case PERF_REG_LOONGARCH_R21:
return "%r21";
case PERF_REG_LOONGARCH_R22:
return "%r22";
case PERF_REG_LOONGARCH_R23:
return "%r23";
case PERF_REG_LOONGARCH_R24:
return "%r24";
case PERF_REG_LOONGARCH_R25:
return "%r25";
case PERF_REG_LOONGARCH_R26:
return "%r26";
case PERF_REG_LOONGARCH_R27:
return "%r27";
case PERF_REG_LOONGARCH_R28:
return "%r28";
case PERF_REG_LOONGARCH_R29:
return "%r29";
case PERF_REG_LOONGARCH_R30:
return "%r30";
case PERF_REG_LOONGARCH_R31:
return "%r31";
default:
break;
}
return NULL;
}
static const char *__perf_reg_name_mips(int id)
{
switch (id) {
@ -670,6 +744,8 @@ const char *perf_reg_name(int id, const char *arch)
if (!strcmp(arch, "csky"))
reg_name = __perf_reg_name_csky(id);
else if (!strcmp(arch, "loongarch"))
reg_name = __perf_reg_name_loongarch(id);
else if (!strcmp(arch, "mips"))
reg_name = __perf_reg_name_mips(id);
else if (!strcmp(arch, "powerpc"))

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@ -38,6 +38,10 @@ static const char **syscalltbl_native = syscalltbl_arm64;
#include <asm/syscalls_n64.c>
const int syscalltbl_native_max_id = SYSCALLTBL_MIPS_N64_MAX_ID;
static const char **syscalltbl_native = syscalltbl_mips_n64;
#elif defined(__loongarch__)
#include <asm/syscalls.c>
const int syscalltbl_native_max_id = SYSCALLTBL_LOONGARCH_MAX_ID;
static const char **syscalltbl_native = syscalltbl_loongarch;
#endif
struct syscall {