1 // SPDX-License-Identifier: GPL-2.0
2 #include <linux/compiler.h>
4 static int s390_call__parse(struct arch *arch, struct ins_operands *ops,
7 char *endptr, *tok, *name;
8 struct map *map = ms->map;
9 struct addr_map_symbol target = {
13 tok = strchr(ops->raw, ',');
17 ops->target.addr = strtoull(tok + 1, &endptr, 16);
19 name = strchr(endptr, '<');
25 if (arch->objdump.skip_functions_char &&
26 strchr(name, arch->objdump.skip_functions_char))
29 tok = strchr(name, '>');
34 ops->target.name = strdup(name);
37 if (ops->target.name == NULL)
39 target.addr = map__objdump_2mem(map, ops->target.addr);
41 if (map_groups__find_ams(&target) == 0 &&
42 map__rip_2objdump(target.map, map->map_ip(target.map, target.addr)) == ops->target.addr)
43 ops->target.sym = target.sym;
48 static int call__scnprintf(struct ins *ins, char *bf, size_t size,
49 struct ins_operands *ops);
51 static struct ins_ops s390_call_ops = {
52 .parse = s390_call__parse,
53 .scnprintf = call__scnprintf,
56 static int s390_mov__parse(struct arch *arch __maybe_unused,
57 struct ins_operands *ops,
58 struct map_symbol *ms __maybe_unused)
60 char *s = strchr(ops->raw, ','), *target, *endptr;
66 ops->source.raw = strdup(ops->raw);
69 if (ops->source.raw == NULL)
73 ops->target.raw = strdup(target);
74 if (ops->target.raw == NULL)
77 ops->target.addr = strtoull(target, &endptr, 16);
81 s = strchr(endptr, '<');
84 endptr = strchr(s + 1, '>');
89 ops->target.name = strdup(s + 1);
91 if (ops->target.name == NULL)
97 zfree(&ops->target.raw);
99 zfree(&ops->source.raw);
104 static struct ins_ops s390_mov_ops = {
105 .parse = s390_mov__parse,
106 .scnprintf = mov__scnprintf,
109 static struct ins_ops *s390__associate_ins_ops(struct arch *arch, const char *name)
111 struct ins_ops *ops = NULL;
113 /* catch all kind of jumps */
114 if (strchr(name, 'j') ||
115 !strncmp(name, "bct", 3) ||
116 !strncmp(name, "br", 2))
118 /* override call/returns */
119 if (!strcmp(name, "bras") ||
120 !strcmp(name, "brasl") ||
121 !strcmp(name, "basr"))
122 ops = &s390_call_ops;
123 if (!strcmp(name, "br"))
125 /* override load/store relative to PC */
126 if (!strcmp(name, "lrl") ||
127 !strcmp(name, "lgrl") ||
128 !strcmp(name, "lgfrl") ||
129 !strcmp(name, "llgfrl") ||
130 !strcmp(name, "strl") ||
131 !strcmp(name, "stgrl"))
135 arch__associate_ins_ops(arch, name, ops);
139 static int s390__cpuid_parse(struct arch *arch, char *cpuid)
142 char model[16], model_c[16], cpumf_v[16], cpumf_a[16];
146 * cpuid string format:
147 * "IBM,family,model-capacity,model[,cpum_cf-version,cpum_cf-authorization]"
149 ret = sscanf(cpuid, "%*[^,],%u,%[^,],%[^,],%[^,],%s", &family, model_c,
150 model, cpumf_v, cpumf_a);
152 arch->family = family;
160 static int s390__annotate_init(struct arch *arch, char *cpuid __maybe_unused)
164 if (!arch->initialized) {
165 arch->initialized = true;
166 arch->associate_instruction_ops = s390__associate_ins_ops;
168 err = s390__cpuid_parse(arch, cpuid);