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-rw-r--r--tools/perf/arch/loongarch/Build1
-rw-r--r--tools/perf/arch/loongarch/Makefile28
-rw-r--r--tools/perf/arch/loongarch/annotate/instructions.c135
-rwxr-xr-xtools/perf/arch/loongarch/entry/syscalls/mksyscalltbl45
-rw-r--r--tools/perf/arch/loongarch/include/dwarf-regs-table.h16
-rw-r--r--tools/perf/arch/loongarch/include/perf_regs.h13
-rw-r--r--tools/perf/arch/loongarch/util/Build5
-rw-r--r--tools/perf/arch/loongarch/util/dwarf-regs.c44
-rw-r--r--tools/perf/arch/loongarch/util/perf_regs.c17
-rw-r--r--tools/perf/arch/loongarch/util/unwind-libdw.c57
-rw-r--r--tools/perf/arch/loongarch/util/unwind-libunwind.c82
11 files changed, 443 insertions, 0 deletions
diff --git a/tools/perf/arch/loongarch/Build b/tools/perf/arch/loongarch/Build
new file mode 100644
index 0000000000..e4e5f33c84
--- /dev/null
+++ b/tools/perf/arch/loongarch/Build
@@ -0,0 +1 @@
+perf-y += util/
diff --git a/tools/perf/arch/loongarch/Makefile b/tools/perf/arch/loongarch/Makefile
new file mode 100644
index 0000000000..c392e7af47
--- /dev/null
+++ b/tools/perf/arch/loongarch/Makefile
@@ -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
index 0000000000..98e19c5366
--- /dev/null
+++ b/tools/perf/arch/loongarch/annotate/instructions.c
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Perf annotate functions.
+ *
+ * Copyright (C) 2020-2023 Loongson Technology Corporation Limited
+ */
+
+static int loongarch_call__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
+{
+ char *c, *endptr, *tok, *name;
+ struct map *map = ms->map;
+ struct addr_map_symbol target = {
+ .ms = { .map = map, },
+ };
+
+ c = strchr(ops->raw, '#');
+ if (c++ == NULL)
+ return -1;
+
+ ops->target.addr = strtoull(c, &endptr, 16);
+
+ name = strchr(endptr, '<');
+ name++;
+
+ if (arch->objdump.skip_functions_char &&
+ strchr(name, arch->objdump.skip_functions_char))
+ return -1;
+
+ tok = strchr(name, '>');
+ if (tok == NULL)
+ return -1;
+
+ *tok = '\0';
+ ops->target.name = strdup(name);
+ *tok = '>';
+
+ if (ops->target.name == NULL)
+ return -1;
+
+ target.addr = map__objdump_2mem(map, ops->target.addr);
+
+ if (maps__find_ams(ms->maps, &target) == 0 &&
+ map__rip_2objdump(target.ms.map, map__map_ip(target.ms.map, target.addr)) == ops->target.addr)
+ ops->target.sym = target.ms.sym;
+
+ return 0;
+}
+
+static struct ins_ops loongarch_call_ops = {
+ .parse = loongarch_call__parse,
+ .scnprintf = call__scnprintf,
+};
+
+static int loongarch_jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms)
+{
+ struct map *map = ms->map;
+ struct symbol *sym = ms->sym;
+ struct addr_map_symbol target = {
+ .ms = { .map = map, },
+ };
+ const char *c = strchr(ops->raw, '#');
+ u64 start, end;
+
+ ops->raw_comment = strchr(ops->raw, arch->objdump.comment_char);
+ ops->raw_func_start = strchr(ops->raw, '<');
+
+ if (ops->raw_func_start && c > ops->raw_func_start)
+ c = NULL;
+
+ if (c++ != NULL)
+ ops->target.addr = strtoull(c, NULL, 16);
+ else
+ ops->target.addr = strtoull(ops->raw, NULL, 16);
+
+ target.addr = map__objdump_2mem(map, ops->target.addr);
+ start = map__unmap_ip(map, sym->start);
+ end = map__unmap_ip(map, sym->end);
+
+ ops->target.outside = target.addr < start || target.addr > end;
+
+ if (maps__find_ams(ms->maps, &target) == 0 &&
+ map__rip_2objdump(target.ms.map, map__map_ip(target.ms.map, target.addr)) == ops->target.addr)
+ ops->target.sym = target.ms.sym;
+
+ if (!ops->target.outside) {
+ ops->target.offset = target.addr - start;
+ ops->target.offset_avail = true;
+ } else {
+ ops->target.offset_avail = false;
+ }
+
+ return 0;
+}
+
+static struct ins_ops loongarch_jump_ops = {
+ .parse = loongarch_jump__parse,
+ .scnprintf = jump__scnprintf,
+};
+
+static
+struct ins_ops *loongarch__associate_ins_ops(struct arch *arch, const char *name)
+{
+ struct ins_ops *ops = NULL;
+
+ if (!strcmp(name, "bl"))
+ ops = &loongarch_call_ops;
+ else if (!strcmp(name, "jirl"))
+ ops = &ret_ops;
+ else if (!strcmp(name, "b") ||
+ !strncmp(name, "beq", 3) ||
+ !strncmp(name, "bne", 3) ||
+ !strncmp(name, "blt", 3) ||
+ !strncmp(name, "bge", 3) ||
+ !strncmp(name, "bltu", 4) ||
+ !strncmp(name, "bgeu", 4))
+ ops = &loongarch_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
index 0000000000..c10ad3580a
--- /dev/null
+++ b/tools/perf/arch/loongarch/entry/syscalls/mksyscalltbl
@@ -0,0 +1,45 @@
+#!/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 $input; then
+ echo "Could not read input file" >&2
+ exit 1
+fi
+
+create_sc_table()
+{
+ local sc nr max_nr
+
+ while read sc nr; do
+ printf "%s\n" " [$nr] = \"$sc\","
+ max_nr=$nr
+ done
+
+ echo "#define SYSCALLTBL_LOONGARCH_MAX_ID $max_nr"
+}
+
+create_table()
+{
+ echo "#include \"$input\""
+ echo "static const char *const syscalltbl_loongarch[] = {"
+ create_sc_table
+ echo "};"
+}
+
+$gcc -E -dM -x c -I $incpath/include/uapi $input \
+ |awk '$2 ~ "__NR" && $3 !~ "__NR3264_" {
+ sub("^#define __NR(3264)?_", "");
+ print | "sort -k2 -n"}' \
+ |create_table
diff --git a/tools/perf/arch/loongarch/include/dwarf-regs-table.h b/tools/perf/arch/loongarch/include/dwarf-regs-table.h
new file mode 100644
index 0000000000..bb3944f576
--- /dev/null
+++ b/tools/perf/arch/loongarch/include/dwarf-regs-table.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * dwarf-regs-table.h : Mapping of DWARF debug register numbers into
+ * register names.
+ *
+ * Copyright (C) 2020-2023 Loongson Technology Corporation Limited
+ */
+
+#ifdef DEFINE_DWARF_REGSTR_TABLE
+static const char * const loongarch_regstr_tbl[] = {
+ "%r0", "%r1", "%r2", "%r3", "%r4", "%r5", "%r6", "%r7",
+ "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15",
+ "%r16", "%r17", "%r18", "%r19", "%r20", "%r21", "%r22", "%r23",
+ "%r24", "%r25", "%r26", "%r27", "%r28", "%r29", "%r30", "%r31",
+};
+#endif
diff --git a/tools/perf/arch/loongarch/include/perf_regs.h b/tools/perf/arch/loongarch/include/perf_regs.h
new file mode 100644
index 0000000000..45c799fa53
--- /dev/null
+++ b/tools/perf/arch/loongarch/include/perf_regs.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ARCH_PERF_REGS_H
+#define ARCH_PERF_REGS_H
+
+#include <stdlib.h>
+#include <linux/types.h>
+#include <asm/perf_regs.h>
+
+#define PERF_REGS_MAX PERF_REG_LOONGARCH_MAX
+
+#define PERF_REGS_MASK ((1ULL << PERF_REG_LOONGARCH_MAX) - 1)
+
+#endif /* ARCH_PERF_REGS_H */
diff --git a/tools/perf/arch/loongarch/util/Build b/tools/perf/arch/loongarch/util/Build
new file mode 100644
index 0000000000..d776125a2d
--- /dev/null
+++ b/tools/perf/arch/loongarch/util/Build
@@ -0,0 +1,5 @@
+perf-y += perf_regs.o
+
+perf-$(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
index 0000000000..0f6ebc3874
--- /dev/null
+++ b/tools/perf/arch/loongarch/util/dwarf-regs.c
@@ -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
index 0000000000..2c56e8b56d
--- /dev/null
+++ b/tools/perf/arch/loongarch/util/perf_regs.c
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "perf_regs.h"
+#include "../../../util/perf_regs.h"
+
+const struct sample_reg sample_reg_masks[] = {
+ SMPL_REG_END
+};
+
+uint64_t arch__intr_reg_mask(void)
+{
+ return PERF_REGS_MASK;
+}
+
+uint64_t arch__user_reg_mask(void)
+{
+ return PERF_REGS_MASK;
+}
diff --git a/tools/perf/arch/loongarch/util/unwind-libdw.c b/tools/perf/arch/loongarch/util/unwind-libdw.c
new file mode 100644
index 0000000000..7b3b9a4b21
--- /dev/null
+++ b/tools/perf/arch/loongarch/util/unwind-libdw.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2020-2023 Loongson Technology Corporation Limited */
+
+#include <elfutils/libdwfl.h>
+#include "perf_regs.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
index 0000000000..f693167b86
--- /dev/null
+++ b/tools/perf/arch/loongarch/util/unwind-libunwind.c
@@ -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;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-03 06:19:52 +0000