mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
5fb13d7ef4
Change "char buffer[8192];" into "char *buffer =
(char *) malloc(1000 + 6 * len_str);" in function
loongarch_expand_macro_with_format_map.
gas/
* config/tc-loongarch.c
include/
* opcode/loongarch.h
opcodes/
* loongarch-coder.c
240 lines
7.0 KiB
C
240 lines
7.0 KiB
C
/* LoongArch assembler/disassembler support.
|
|
|
|
Copyright (C) 2021-2022 Free Software Foundation, Inc.
|
|
Contributed by Loongson Ltd.
|
|
|
|
This file is part of GNU Binutils.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the license, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; see the file COPYING3. If not,
|
|
see <http://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _LOONGARCH_H_
|
|
#define _LOONGARCH_H_
|
|
#include <stdint.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C"
|
|
{
|
|
#endif
|
|
|
|
typedef uint32_t insn_t;
|
|
|
|
struct loongarch_opcode
|
|
{
|
|
const insn_t match;
|
|
const insn_t mask; /* High 1 byte is main opcode and it must be 0xf. */
|
|
#define LARCH_INSN_OPC(insn) ((insn & 0xf0000000) >> 28)
|
|
const char *const name;
|
|
|
|
/* ACTUAL PARAMETER:
|
|
|
|
// BNF with regular expression.
|
|
args : token* end
|
|
|
|
// just few char separate 'iden'
|
|
token : ','
|
|
| '('
|
|
| ')'
|
|
| iden // maybe a label (include at least one alphabet),
|
|
maybe a number, maybe a expr
|
|
| regname
|
|
|
|
regname : '$' iden
|
|
|
|
iden : [a-zA-Z0-9\.\+\-]+
|
|
|
|
end : '\0'
|
|
|
|
|
|
FORMAT: A string to describe the format of actual parameter including
|
|
bit field infomation. For example, "r5:5,r0:5,sr10:16<<2" matches
|
|
"$12,$13,12345" and "$4,$7,a_label". That 'sr' means the instruction
|
|
may need relocate. '10:16' means bit field of instruction.
|
|
In a 'format', every 'escape's can be replaced to 'iden' or 'regname'
|
|
acrroding to its meaning. We fill all information needed by
|
|
disassembing and assembing to 'format'.
|
|
|
|
// BNF with regular expression.
|
|
format : escape (literal+ escape)* literal* end
|
|
| (literal+ escape)* literal* end
|
|
|
|
end : '\0' // Get here means parse end.
|
|
|
|
// The intersection between any two among FIRST (end), FIRST
|
|
// (literal) and FIRST (escape) must be empty.
|
|
// So we can build a simple parser.
|
|
literal : ','
|
|
| '('
|
|
| ')'
|
|
|
|
// Double '<'s means the real number is the immediate after shifting left.
|
|
escape : esc_ch bit_field '<' '<' dec2
|
|
| esc_ch bit_field
|
|
| esc_ch // for MACRO. non-macro format must indicate 'bit_field'
|
|
|
|
// '|' means to concatenate nonadjacent bit fields
|
|
// For example, "10:16|0:4" means
|
|
// "16 bits starting from the 10th bit concatenating with 4 bits
|
|
// starting from the 0th bit".
|
|
// This is to say "[25..10]||[3..0]" (little endian).
|
|
b_field : dec2 ':' dec2
|
|
| dec2 ':' dec2 '|' bit_field
|
|
|
|
esc_ch : 's' 'r' // signed immediate or label need relocate
|
|
| 's' // signed immediate no need relocate
|
|
| 'u' // unsigned immediate
|
|
| 'l' // label needed relocate
|
|
| 'r' // general purpose registers
|
|
| 'f' // FPU registers
|
|
| 'v' // 128 bit SIMD register
|
|
| 'x' // 256 bit SIMD register
|
|
|
|
dec2 : [1-9][0-9]?
|
|
| 0
|
|
|
|
*/
|
|
const char *const format;
|
|
|
|
/* MACRO: Indicate how a macro instruction expand for assembling.
|
|
The main is to replace the '%num'(means the 'num'th 'escape' in
|
|
'format') in 'macro' string to get the real instruction.
|
|
|
|
Maybe need
|
|
*/
|
|
const char *const macro;
|
|
const int *include;
|
|
const int *exclude;
|
|
|
|
const unsigned long pinfo;
|
|
#define USELESS 0x0l
|
|
};
|
|
|
|
struct hash_control;
|
|
|
|
struct loongarch_ase
|
|
{
|
|
const int *enabled;
|
|
struct loongarch_opcode *const opcodes;
|
|
const int *include;
|
|
const int *exclude;
|
|
|
|
/* For disassemble to create main opcode hash table. */
|
|
const struct loongarch_opcode *opc_htab[16];
|
|
unsigned char opc_htab_inited;
|
|
|
|
/* For GAS to create hash table. */
|
|
struct htab *name_hash_entry;
|
|
};
|
|
|
|
extern int is_unsigned (const char *);
|
|
extern int is_signed (const char *);
|
|
extern int is_branch_label (const char *);
|
|
|
|
extern int loongarch_get_bit_field_width (const char *bit_field, char **end);
|
|
extern int32_t loongarch_decode_imm (const char *bit_field, insn_t insn,
|
|
int si);
|
|
|
|
#define MAX_ARG_NUM_PLUS_2 9
|
|
|
|
extern size_t loongarch_split_args_by_comma (char *args,
|
|
const char *arg_strs[]);
|
|
extern char *loongarch_cat_splited_strs (const char *arg_strs[]);
|
|
extern insn_t loongarch_foreach_args (
|
|
const char *format, const char *arg_strs[],
|
|
int32_t (*helper) (char esc1, char esc2, const char *bit_field,
|
|
const char *arg, void *context),
|
|
void *context);
|
|
|
|
extern int loongarch_check_format (const char *format);
|
|
extern int loongarch_check_macro (const char *format, const char *macro);
|
|
|
|
extern char *loongarch_expand_macro_with_format_map (
|
|
const char *format, const char *macro, const char *const arg_strs[],
|
|
const char *(*map) (char esc1, char esc2, const char *arg),
|
|
char *(*helper) (const char *const arg_strs[], void *context),
|
|
void *context, size_t len_str);
|
|
extern char *loongarch_expand_macro (
|
|
const char *macro, const char *const arg_strs[],
|
|
char *(*helper) (const char *const arg_strs[], void *context),
|
|
void *context, size_t len_str);
|
|
extern size_t loongarch_bits_imm_needed (int64_t imm, int si);
|
|
|
|
extern void loongarch_eliminate_adjacent_repeat_char (char *dest, char c);
|
|
|
|
extern int loongarch_parse_dis_options (const char *opts_in);
|
|
extern void loongarch_disassemble_one (
|
|
int64_t pc, insn_t insn,
|
|
int (*fprintf_func) (void *stream, const char *format, ...), void *stream);
|
|
|
|
extern const char *const loongarch_r_normal_name[32];
|
|
extern const char *const loongarch_r_lp64_name[32];
|
|
extern const char *const loongarch_r_lp64_name1[32];
|
|
extern const char *const loongarch_f_normal_name[32];
|
|
extern const char *const loongarch_f_lp64_name[32];
|
|
extern const char *const loongarch_f_lp64_name1[32];
|
|
extern const char *const loongarch_c_normal_name[8];
|
|
extern const char *const loongarch_cr_normal_name[4];
|
|
extern const char *const loongarch_v_normal_name[32];
|
|
extern const char *const loongarch_x_normal_name[32];
|
|
|
|
extern struct loongarch_ase loongarch_ASEs[];
|
|
|
|
extern struct loongarch_ASEs_option
|
|
{
|
|
struct opt_abi
|
|
{
|
|
int elf_abi;
|
|
} abi;
|
|
#define ase_abi abi.elf_abi
|
|
|
|
struct opt_isa
|
|
{
|
|
int use_ilp32;
|
|
int use_lp64;
|
|
|
|
int use_soft_float;
|
|
int use_single_float;
|
|
int use_double_float;
|
|
|
|
int use_lsx;
|
|
int use_lasx;
|
|
|
|
int use_la_local_with_abs;
|
|
int use_la_global_with_pcrel;
|
|
int use_la_global_with_abs;
|
|
} isa;
|
|
#define ase_ilp32 isa.use_ilp32
|
|
#define ase_lp64 isa.use_lp64
|
|
|
|
#define ase_nf isa.use_soft_float
|
|
#define ase_sf isa.use_single_float
|
|
#define ase_df isa.use_double_float
|
|
|
|
#define ase_lsx isa.use_lsx
|
|
#define ase_lasx isa.use_lasx
|
|
|
|
#define ase_labs isa.use_la_local_with_abs
|
|
#define ase_gpcr isa.use_la_global_with_pcrel
|
|
#define ase_gabs isa.use_la_global_with_abs
|
|
|
|
} LARCH_opts;
|
|
|
|
extern size_t loongarch_insn_length (insn_t insn);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _LOONGARCH_H_ */
|