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// 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->jump.raw_comment = strchr(ops->raw, arch->objdump.comment_char);
ops->jump.raw_func_start = strchr(ops->raw, '<');
if (ops->jump.raw_func_start && c > ops->jump.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;
}
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