tools/perf: Add basic support for LoongArch
authorHuacai Chen <chenhuacai@loongson.cn>
Mon, 1 May 2023 09:19:59 +0000 (17:19 +0800)
committerHuacai Chen <chenhuacai@loongson.cn>
Mon, 1 May 2023 09:19:59 +0000 (17:19 +0800)
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>
21 files changed:
tools/arch/loongarch/include/uapi/asm/perf_regs.h [new file with mode: 0644]
tools/arch/loongarch/include/uapi/asm/unistd.h [new file with mode: 0644]
tools/perf/Makefile.config
tools/perf/arch/loongarch/Build [new file with mode: 0644]
tools/perf/arch/loongarch/Makefile [new file with mode: 0644]
tools/perf/arch/loongarch/annotate/instructions.c [new file with mode: 0644]
tools/perf/arch/loongarch/entry/syscalls/mksyscalltbl [new file with mode: 0755]
tools/perf/arch/loongarch/include/dwarf-regs-table.h [new file with mode: 0644]
tools/perf/arch/loongarch/include/perf_regs.h [new file with mode: 0644]
tools/perf/arch/loongarch/util/Build [new file with mode: 0644]
tools/perf/arch/loongarch/util/dwarf-regs.c [new file with mode: 0644]
tools/perf/arch/loongarch/util/perf_regs.c [new file with mode: 0644]
tools/perf/arch/loongarch/util/unwind-libdw.c [new file with mode: 0644]
tools/perf/arch/loongarch/util/unwind-libunwind.c [new file with mode: 0644]
tools/perf/check-headers.sh
tools/perf/util/annotate.c
tools/perf/util/dwarf-regs.c
tools/perf/util/env.c
tools/perf/util/genelf.h
tools/perf/util/perf_regs.c
tools/perf/util/syscalltbl.c

diff --git a/tools/arch/loongarch/include/uapi/asm/perf_regs.h b/tools/arch/loongarch/include/uapi/asm/perf_regs.h
new file mode 100644 (file)
index 0000000..29d69c0
--- /dev/null
@@ -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 */
diff --git a/tools/arch/loongarch/include/uapi/asm/unistd.h b/tools/arch/loongarch/include/uapi/asm/unistd.h
new file mode 100644 (file)
index 0000000..0c74334
--- /dev/null
@@ -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>
index 3519a013902637b5fb258b679933478f0131442d..c0a208f9b67bccd8b67fe7a66ffd45dbb449b237 100644 (file)
@@ -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
 
diff --git a/tools/perf/arch/loongarch/Build b/tools/perf/arch/loongarch/Build
new file mode 100644 (file)
index 0000000..e4e5f33
--- /dev/null
@@ -0,0 +1 @@
+perf-y += util/
diff --git a/tools/perf/arch/loongarch/Makefile b/tools/perf/arch/loongarch/Makefile
new file mode 100644 (file)
index 0000000..c392e7a
--- /dev/null
@@ -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)
diff --git a/tools/perf/arch/loongarch/annotate/instructions.c b/tools/perf/arch/loongarch/annotate/instructions.c
new file mode 100644 (file)
index 0000000..ab21bf1
--- /dev/null
@@ -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;
+}
diff --git a/tools/perf/arch/loongarch/entry/syscalls/mksyscalltbl b/tools/perf/arch/loongarch/entry/syscalls/mksyscalltbl
new file mode 100755 (executable)
index 0000000..c52156f
--- /dev/null
@@ -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 $input             \
+       |sed -ne 's/^#define __NR_//p' \
+       |sort -t' ' -k2 -n \
+       |create_table
diff --git a/tools/perf/arch/loongarch/include/dwarf-regs-table.h b/tools/perf/arch/loongarch/include/dwarf-regs-table.h
new file mode 100644 (file)
index 0000000..bb3944f
--- /dev/null
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * dwarf-regs-table.h : Mapping of DWARF debug register numbers into
+ * register names.
+ *
+ * Copyright (C) 2020-2023 Loongson Technology Corporation Limited
+ */
+
+#ifdef DEFINE_DWARF_REGSTR_TABLE
+static const char * const loongarch_regstr_tbl[] = {
+       "%r0", "%r1", "%r2", "%r3", "%r4", "%r5", "%r6", "%r7",
+       "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15",
+       "%r16", "%r17", "%r18", "%r19", "%r20", "%r21", "%r22", "%r23",
+       "%r24", "%r25", "%r26", "%r27", "%r28", "%r29", "%r30", "%r31",
+};
+#endif
diff --git a/tools/perf/arch/loongarch/include/perf_regs.h b/tools/perf/arch/loongarch/include/perf_regs.h
new file mode 100644 (file)
index 0000000..7833c7d
--- /dev/null
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ARCH_PERF_REGS_H
+#define ARCH_PERF_REGS_H
+
+#include <stdlib.h>
+#include <linux/types.h>
+#include <asm/perf_regs.h>
+
+#define PERF_REGS_MAX PERF_REG_LOONGARCH_MAX
+#define PERF_REG_IP PERF_REG_LOONGARCH_PC
+#define PERF_REG_SP PERF_REG_LOONGARCH_R3
+
+#define PERF_REGS_MASK ((1ULL << PERF_REG_LOONGARCH_MAX) - 1)
+
+#endif /* ARCH_PERF_REGS_H */
diff --git a/tools/perf/arch/loongarch/util/Build b/tools/perf/arch/loongarch/util/Build
new file mode 100644 (file)
index 0000000..d776125
--- /dev/null
@@ -0,0 +1,5 @@
+perf-y += perf_regs.o
+
+perf-$(CONFIG_DWARF)     += dwarf-regs.o
+perf-$(CONFIG_LOCAL_LIBUNWIND) += unwind-libunwind.o
+perf-$(CONFIG_LIBDW_DWARF_UNWIND) += unwind-libdw.o
diff --git a/tools/perf/arch/loongarch/util/dwarf-regs.c b/tools/perf/arch/loongarch/util/dwarf-regs.c
new file mode 100644 (file)
index 0000000..0f6ebc3
--- /dev/null
@@ -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;
+}
diff --git a/tools/perf/arch/loongarch/util/perf_regs.c b/tools/perf/arch/loongarch/util/perf_regs.c
new file mode 100644 (file)
index 0000000..2833e10
--- /dev/null
@@ -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
+};
diff --git a/tools/perf/arch/loongarch/util/unwind-libdw.c b/tools/perf/arch/loongarch/util/unwind-libdw.c
new file mode 100644 (file)
index 0000000..a941538
--- /dev/null
@@ -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);
+}
diff --git a/tools/perf/arch/loongarch/util/unwind-libunwind.c b/tools/perf/arch/loongarch/util/unwind-libunwind.c
new file mode 100644 (file)
index 0000000..f693167
--- /dev/null
@@ -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;
+}
index eacca9a874e2f334ad4352aa5ba6e605c9be790e..9d6232f681ceefbd4757009fba51cccf106c6d47 100755 (executable)
@@ -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
index db475e44f42fae8d87e4e18b0f8afefb0c383526..0cc7710f32dab370b05860fb7d2b73cc04a15f2f 100644 (file)
@@ -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)
index 3fa4486742cdfe142ccdfe8ba11502c299f3e67a..69cfaa5953bf475cf02db129d1dc6ad6aa7332e3 100644 (file)
 #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);
        }
index 5b8cf6a421a4951df882cdd9b119c70bf1407635..0d5d40cb997b6a4f28e072f1e5e12c95c5555f69 100644 (file)
@@ -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;
 }
index 6af062d1c4522c78a391bc39bbd5cb6266c1b4be..5f18d20ea903a2cde31b4c677e77fed3171dcbe3 100644 (file)
@@ -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
index 57a567ee2ceaa1a780c2516cdf6ebb31677cfedc..9bdbaa37f8139de4f987df27b7e421337865f989 100644 (file)
@@ -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"))
index a2e906858891ace11051da6822019b9bd5aa49b7..313eccef6cb4c166027a8a2bb1e7f28a7352bb2b 100644 (file)
@@ -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 {