138 lines · c
1// SPDX-License-Identifier: GPL-2.02/*3 * Perf annotate functions.4 *5 * Copyright (C) 2020-2023 Loongson Technology Corporation Limited6 */7 8static int loongarch_call__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms,9 struct disasm_line *dl __maybe_unused)10{11 char *c, *endptr, *tok, *name;12 struct map *map = ms->map;13 struct addr_map_symbol target = {14 .ms = { .map = map, },15 };16 17 c = strchr(ops->raw, '#');18 if (c++ == NULL)19 return -1;20 21 ops->target.addr = strtoull(c, &endptr, 16);22 23 name = strchr(endptr, '<');24 name++;25 26 if (arch->objdump.skip_functions_char &&27 strchr(name, arch->objdump.skip_functions_char))28 return -1;29 30 tok = strchr(name, '>');31 if (tok == NULL)32 return -1;33 34 *tok = '\0';35 ops->target.name = strdup(name);36 *tok = '>';37 38 if (ops->target.name == NULL)39 return -1;40 41 target.addr = map__objdump_2mem(map, ops->target.addr);42 43 if (maps__find_ams(ms->maps, &target) == 0 &&44 map__rip_2objdump(target.ms.map, map__map_ip(target.ms.map, target.addr)) == ops->target.addr)45 ops->target.sym = target.ms.sym;46 47 return 0;48}49 50static struct ins_ops loongarch_call_ops = {51 .parse = loongarch_call__parse,52 .scnprintf = call__scnprintf,53};54 55static int loongarch_jump__parse(struct arch *arch, struct ins_operands *ops, struct map_symbol *ms,56 struct disasm_line *dl __maybe_unused)57{58 struct map *map = ms->map;59 struct symbol *sym = ms->sym;60 struct addr_map_symbol target = {61 .ms = { .map = map, },62 };63 const char *c = strchr(ops->raw, '#');64 u64 start, end;65 66 ops->jump.raw_comment = strchr(ops->raw, arch->objdump.comment_char);67 ops->jump.raw_func_start = strchr(ops->raw, '<');68 69 if (ops->jump.raw_func_start && c > ops->jump.raw_func_start)70 c = NULL;71 72 if (c++ != NULL)73 ops->target.addr = strtoull(c, NULL, 16);74 else75 ops->target.addr = strtoull(ops->raw, NULL, 16);76 77 target.addr = map__objdump_2mem(map, ops->target.addr);78 start = map__unmap_ip(map, sym->start);79 end = map__unmap_ip(map, sym->end);80 81 ops->target.outside = target.addr < start || target.addr > end;82 83 if (maps__find_ams(ms->maps, &target) == 0 &&84 map__rip_2objdump(target.ms.map, map__map_ip(target.ms.map, target.addr)) == ops->target.addr)85 ops->target.sym = target.ms.sym;86 87 if (!ops->target.outside) {88 ops->target.offset = target.addr - start;89 ops->target.offset_avail = true;90 } else {91 ops->target.offset_avail = false;92 }93 94 return 0;95}96 97static struct ins_ops loongarch_jump_ops = {98 .parse = loongarch_jump__parse,99 .scnprintf = jump__scnprintf,100};101 102static103struct ins_ops *loongarch__associate_ins_ops(struct arch *arch, const char *name)104{105 struct ins_ops *ops = NULL;106 107 if (!strcmp(name, "bl"))108 ops = &loongarch_call_ops;109 else if (!strcmp(name, "jirl"))110 ops = &ret_ops;111 else if (!strcmp(name, "b") ||112 !strncmp(name, "beq", 3) ||113 !strncmp(name, "bne", 3) ||114 !strncmp(name, "blt", 3) ||115 !strncmp(name, "bge", 3) ||116 !strncmp(name, "bltu", 4) ||117 !strncmp(name, "bgeu", 4))118 ops = &loongarch_jump_ops;119 else120 return NULL;121 122 arch__associate_ins_ops(arch, name, ops);123 124 return ops;125}126 127static128int loongarch__annotate_init(struct arch *arch, char *cpuid __maybe_unused)129{130 if (!arch->initialized) {131 arch->associate_instruction_ops = loongarch__associate_ins_ops;132 arch->initialized = true;133 arch->objdump.comment_char = '#';134 }135 136 return 0;137}138