WSL2-Linux-Kernel/tools/perf/arch/sparc/annotate/instructions.c

170 строки
3.6 KiB
C

// SPDX-License-Identifier: GPL-2.0
static int is_branch_cond(const char *cond)
{
if (cond[0] == '\0')
return 1;
if (cond[0] == 'a' && cond[1] == '\0')
return 1;
if (cond[0] == 'c' &&
(cond[1] == 'c' || cond[1] == 's') &&
cond[2] == '\0')
return 1;
if (cond[0] == 'e' &&
(cond[1] == '\0' ||
(cond[1] == 'q' && cond[2] == '\0')))
return 1;
if (cond[0] == 'g' &&
(cond[1] == '\0' ||
(cond[1] == 't' && cond[2] == '\0') ||
(cond[1] == 'e' && cond[2] == '\0') ||
(cond[1] == 'e' && cond[2] == 'u' && cond[3] == '\0')))
return 1;
if (cond[0] == 'l' &&
(cond[1] == '\0' ||
(cond[1] == 't' && cond[2] == '\0') ||
(cond[1] == 'u' && cond[2] == '\0') ||
(cond[1] == 'e' && cond[2] == '\0') ||
(cond[1] == 'e' && cond[2] == 'u' && cond[3] == '\0')))
return 1;
if (cond[0] == 'n' &&
(cond[1] == '\0' ||
(cond[1] == 'e' && cond[2] == '\0') ||
(cond[1] == 'z' && cond[2] == '\0') ||
(cond[1] == 'e' && cond[2] == 'g' && cond[3] == '\0')))
return 1;
if (cond[0] == 'b' &&
cond[1] == 'p' &&
cond[2] == 'o' &&
cond[3] == 's' &&
cond[4] == '\0')
return 1;
if (cond[0] == 'v' &&
(cond[1] == 'c' || cond[1] == 's') &&
cond[2] == '\0')
return 1;
if (cond[0] == 'b' &&
cond[1] == 'z' &&
cond[2] == '\0')
return 1;
return 0;
}
static int is_branch_reg_cond(const char *cond)
{
if ((cond[0] == 'n' || cond[0] == 'l') &&
cond[1] == 'z' &&
cond[2] == '\0')
return 1;
if (cond[0] == 'z' &&
cond[1] == '\0')
return 1;
if ((cond[0] == 'g' || cond[0] == 'l') &&
cond[1] == 'e' &&
cond[2] == 'z' &&
cond[3] == '\0')
return 1;
if (cond[0] == 'g' &&
cond[1] == 'z' &&
cond[2] == '\0')
return 1;
return 0;
}
static int is_branch_float_cond(const char *cond)
{
if (cond[0] == '\0')
return 1;
if ((cond[0] == 'a' || cond[0] == 'e' ||
cond[0] == 'z' || cond[0] == 'g' ||
cond[0] == 'l' || cond[0] == 'n' ||
cond[0] == 'o' || cond[0] == 'u') &&
cond[1] == '\0')
return 1;
if (((cond[0] == 'g' && cond[1] == 'e') ||
(cond[0] == 'l' && (cond[1] == 'e' ||
cond[1] == 'g')) ||
(cond[0] == 'n' && (cond[1] == 'e' ||
cond[1] == 'z')) ||
(cond[0] == 'u' && (cond[1] == 'e' ||
cond[1] == 'g' ||
cond[1] == 'l'))) &&
cond[2] == '\0')
return 1;
if (cond[0] == 'u' &&
(cond[1] == 'g' || cond[1] == 'l') &&
cond[2] == 'e' &&
cond[3] == '\0')
return 1;
return 0;
}
static struct ins_ops *sparc__associate_instruction_ops(struct arch *arch, const char *name)
{
struct ins_ops *ops = NULL;
if (!strcmp(name, "call") ||
!strcmp(name, "jmp") ||
!strcmp(name, "jmpl")) {
ops = &call_ops;
} else if (!strcmp(name, "ret") ||
!strcmp(name, "retl") ||
!strcmp(name, "return")) {
ops = &ret_ops;
} else if (!strcmp(name, "mov")) {
ops = &mov_ops;
} else {
if (name[0] == 'c' &&
(name[1] == 'w' || name[1] == 'x'))
name += 2;
if (name[0] == 'b') {
const char *cond = name + 1;
if (cond[0] == 'r') {
if (is_branch_reg_cond(cond + 1))
ops = &jump_ops;
} else if (is_branch_cond(cond)) {
ops = &jump_ops;
}
} else if (name[0] == 'f' && name[1] == 'b') {
if (is_branch_float_cond(name + 2))
ops = &jump_ops;
}
}
if (ops)
arch__associate_ins_ops(arch, name, ops);
return ops;
}
static int sparc__annotate_init(struct arch *arch, char *cpuid __maybe_unused)
{
if (!arch->initialized) {
arch->initialized = true;
arch->associate_instruction_ops = sparc__associate_instruction_ops;
arch->objdump.comment_char = '#';
}
return 0;
}