@@ -253,6 +253,7 @@ enum bfd_architecture
#define bfd_mach_rx 0x75
#define bfd_mach_rx_v2 0x76
#define bfd_mach_rx_v3 0x77
+ bfd_arch_loongarch,
bfd_arch_last
};
#define bfd_mach_s390_31 31
@@ -462,6 +463,7 @@ int print_insn_riscv64 (bfd_vma, disassemble_info*);
int print_insn_riscv128 (bfd_vma, disassemble_info*);
int print_insn_rx(bfd_vma, disassemble_info *);
int print_insn_hexagon(bfd_vma, disassemble_info *);
+int print_insn_loongarch(bfd_vma, disassemble_info *);
#ifdef CONFIG_CAPSTONE
bool cap_disas_target(disassemble_info *info, uint64_t pc, size_t size);
@@ -2181,6 +2181,7 @@ disassemblers = {
'sh4' : ['CONFIG_SH4_DIS'],
'sparc' : ['CONFIG_SPARC_DIS'],
'xtensa' : ['CONFIG_XTENSA_DIS'],
+ 'loongarch' : ['CONFIG_LOONGARCH_DIS'],
}
if link_language == 'cpp'
disassemblers += {
new file mode 100644
@@ -0,0 +1,610 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * QEMU LoongArch Disassembler
+ *
+ * Copyright (c) 2021 Loongson Technology Corporation Limited.
+ */
+
+#include "qemu/osdep.h"
+#include "disas/dis-asm.h"
+#include "qemu/bitops.h"
+
+typedef struct {
+ disassemble_info *info;
+ uint64_t pc;
+ uint32_t insn;
+} DisasContext;
+
+static inline int plus_1(DisasContext *ctx, int x)
+{
+ return x + 1;
+}
+
+static inline int shl_2(DisasContext *ctx, int x)
+{
+ return x << 2;
+}
+
+#define output(C, INSN, FMT, ...) \
+{ \
+ (C)->info->fprintf_func((C)->info->stream, "%08x %-9s\t" FMT, \
+ (C)->insn, INSN, ##__VA_ARGS__); \
+}
+
+#include "decode-insns.c.inc"
+
+int print_insn_loongarch(bfd_vma memaddr, struct disassemble_info *info)
+{
+ bfd_byte buffer[4];
+ uint32_t insn;
+ int status;
+
+ status = (*info->read_memory_func)(memaddr, buffer, 4, info);
+ if (status != 0) {
+ (*info->memory_error_func)(status, memaddr, info);
+ return -1;
+ }
+ insn = bfd_getl32(buffer);
+ DisasContext ctx = {
+ .info = info,
+ .pc = memaddr,
+ .insn = insn
+ };
+
+ if (!decode(&ctx, insn)) {
+ output(&ctx, "illegal", "");
+ }
+ return 4;
+}
+
+static void output_r_i(DisasContext *ctx, arg_r_i *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "r%d, %d", a->rd, a->imm);
+}
+
+static void output_rrr(DisasContext *ctx, arg_rrr *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "r%d, r%d, r%d", a->rd, a->rj, a->rk);
+}
+
+static void output_rr_i(DisasContext *ctx, arg_rr_i *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "r%d, r%d, %d", a->rd, a->rj, a->imm);
+}
+
+static void output_rrr_sa(DisasContext *ctx, arg_rrr_sa *a,
+ const char *mnemonic)
+{
+ output(ctx, mnemonic, "r%d, r%d, r%d, %d", a->rd, a->rj, a->rk, a->sa);
+}
+
+static void output_rr(DisasContext *ctx, arg_rr *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "r%d, r%d", a->rd, a->rj);
+}
+
+static void output_rr_ms_ls(DisasContext *ctx, arg_rr_ms_ls *a,
+ const char *mnemonic)
+{
+ output(ctx, mnemonic, "r%d, r%d, %d, %d", a->rd, a->rj, a->ms, a->ls);
+}
+
+static void output_hint_r_i(DisasContext *ctx, arg_hint_r_i *a,
+ const char *mnemonic)
+{
+ output(ctx, mnemonic, "%d, r%d, %d", a->hint, a->rj, a->imm);
+}
+
+static void output_i(DisasContext *ctx, arg_i *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "%d", a->imm);
+}
+
+static void output_rr_jk(DisasContext *ctx, arg_rr_jk *a,
+ const char *mnemonic)
+{
+ output(ctx, mnemonic, "r%d, r%d", a->rj, a->rk);
+}
+
+static void output_ff(DisasContext *ctx, arg_ff *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "f%d, f%d", a->fd, a->fj);
+}
+
+static void output_fff(DisasContext *ctx, arg_fff *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "f%d, f%d, f%d", a->fd, a->fj, a->fk);
+}
+
+static void output_ffff(DisasContext *ctx, arg_ffff *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "f%d, f%d, f%d, f%d", a->fd, a->fj, a->fk, a->fa);
+}
+
+static void output_fffc(DisasContext *ctx, arg_fffc *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "f%d, f%d, f%d, %d", a->fd, a->fj, a->fk, a->ca);
+}
+
+static void output_fr(DisasContext *ctx, arg_fr *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "f%d, r%d", a->fd, a->rj);
+}
+
+static void output_rf(DisasContext *ctx, arg_rf *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "r%d, f%d", a->rd, a->fj);
+}
+
+static void output_fcsrd_r(DisasContext *ctx, arg_fcsrd_r *a,
+ const char *mnemonic)
+{
+ output(ctx, mnemonic, "fcsr%d, r%d", a->fcsrd, a->rj);
+}
+
+static void output_r_fcsrs(DisasContext *ctx, arg_r_fcsrs *a,
+ const char *mnemonic)
+{
+ output(ctx, mnemonic, "r%d, fcsr%d", a->rd, a->fcsrs);
+}
+
+static void output_cf(DisasContext *ctx, arg_cf *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "fcc%d, f%d", a->cd, a->fj);
+}
+
+static void output_fc(DisasContext *ctx, arg_fc *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "f%d, fcc%d", a->fd, a->cj);
+}
+
+static void output_cr(DisasContext *ctx, arg_cr *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "fcc%d, r%d", a->cd, a->rj);
+}
+
+static void output_rc(DisasContext *ctx, arg_rc *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "r%d, fcc%d", a->rd, a->cj);
+}
+
+static void output_frr(DisasContext *ctx, arg_frr *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "f%d, r%d, r%d", a->fd, a->rj, a->rk);
+}
+
+static void output_fr_i(DisasContext *ctx, arg_fr_i *a, const char *mnemonic)
+{
+ output(ctx, mnemonic, "f%d, r%d, %d", a->fd, a->rj, a->imm);
+}
+
+static void output_r_offs(DisasContext *ctx, arg_r_offs *a,
+ const char *mnemonic)
+{
+ output(ctx, mnemonic, "r%d, %d # 0x%" PRIx64, a->rj, a->offs,
+ ctx->pc + a->offs);
+}
+
+static void output_c_offs(DisasContext *ctx, arg_c_offs *a,
+ const char *mnemonic)
+{
+ output(ctx, mnemonic, "fcc%d, %d # 0x%" PRIx64, a->cj, a->offs,
+ ctx->pc + a->offs);
+}
+
+static void output_offs(DisasContext *ctx, arg_offs *a,
+ const char *mnemonic)
+{
+ output(ctx, mnemonic, "%d # 0x%" PRIx64, a->offs, ctx->pc + a->offs);
+}
+
+static void output_rr_offs(DisasContext *ctx, arg_rr_offs *a,
+ const char *mnemonic)
+{
+ output(ctx, mnemonic, "r%d, r%d, %d # 0x%" PRIx64, a->rj,
+ a->rd, a->offs, ctx->pc + a->offs);
+}
+
+#define INSN(insn, type) \
+static bool trans_##insn(DisasContext *ctx, arg_##type * a) \
+{ \
+ output_##type(ctx, a, #insn); \
+ return true; \
+}
+
+INSN(clo_w, rr)
+INSN(clz_w, rr)
+INSN(cto_w, rr)
+INSN(ctz_w, rr)
+INSN(clo_d, rr)
+INSN(clz_d, rr)
+INSN(cto_d, rr)
+INSN(ctz_d, rr)
+INSN(revb_2h, rr)
+INSN(revb_4h, rr)
+INSN(revb_2w, rr)
+INSN(revb_d, rr)
+INSN(revh_2w, rr)
+INSN(revh_d, rr)
+INSN(bitrev_4b, rr)
+INSN(bitrev_8b, rr)
+INSN(bitrev_w, rr)
+INSN(bitrev_d, rr)
+INSN(ext_w_h, rr)
+INSN(ext_w_b, rr)
+INSN(cpucfg, rr)
+INSN(asrtle_d, rr_jk)
+INSN(asrtgt_d, rr_jk)
+INSN(alsl_w, rrr_sa)
+INSN(alsl_wu, rrr_sa)
+INSN(bytepick_w, rrr_sa)
+INSN(bytepick_d, rrr_sa)
+INSN(add_w, rrr)
+INSN(add_d, rrr)
+INSN(sub_w, rrr)
+INSN(sub_d, rrr)
+INSN(slt, rrr)
+INSN(sltu, rrr)
+INSN(maskeqz, rrr)
+INSN(masknez, rrr)
+INSN(nor, rrr)
+INSN(and, rrr)
+INSN(or, rrr)
+INSN(xor, rrr)
+INSN(orn, rrr)
+INSN(andn, rrr)
+INSN(sll_w, rrr)
+INSN(srl_w, rrr)
+INSN(sra_w, rrr)
+INSN(sll_d, rrr)
+INSN(srl_d, rrr)
+INSN(sra_d, rrr)
+INSN(rotr_w, rrr)
+INSN(rotr_d, rrr)
+INSN(mul_w, rrr)
+INSN(mulh_w, rrr)
+INSN(mulh_wu, rrr)
+INSN(mul_d, rrr)
+INSN(mulh_d, rrr)
+INSN(mulh_du, rrr)
+INSN(mulw_d_w, rrr)
+INSN(mulw_d_wu, rrr)
+INSN(div_w, rrr)
+INSN(mod_w, rrr)
+INSN(div_wu, rrr)
+INSN(mod_wu, rrr)
+INSN(div_d, rrr)
+INSN(mod_d, rrr)
+INSN(div_du, rrr)
+INSN(mod_du, rrr)
+INSN(crc_w_b_w, rrr)
+INSN(crc_w_h_w, rrr)
+INSN(crc_w_w_w, rrr)
+INSN(crc_w_d_w, rrr)
+INSN(crcc_w_b_w, rrr)
+INSN(crcc_w_h_w, rrr)
+INSN(crcc_w_w_w, rrr)
+INSN(crcc_w_d_w, rrr)
+INSN(break, i)
+INSN(syscall, i)
+INSN(alsl_d, rrr_sa)
+INSN(slli_w, rr_i)
+INSN(slli_d, rr_i)
+INSN(srli_w, rr_i)
+INSN(srli_d, rr_i)
+INSN(srai_w, rr_i)
+INSN(srai_d, rr_i)
+INSN(rotri_w, rr_i)
+INSN(rotri_d, rr_i)
+INSN(bstrins_w, rr_ms_ls)
+INSN(bstrpick_w, rr_ms_ls)
+INSN(bstrins_d, rr_ms_ls)
+INSN(bstrpick_d, rr_ms_ls)
+INSN(fadd_s, fff)
+INSN(fadd_d, fff)
+INSN(fsub_s, fff)
+INSN(fsub_d, fff)
+INSN(fmul_s, fff)
+INSN(fmul_d, fff)
+INSN(fdiv_s, fff)
+INSN(fdiv_d, fff)
+INSN(fmax_s, fff)
+INSN(fmax_d, fff)
+INSN(fmin_s, fff)
+INSN(fmin_d, fff)
+INSN(fmaxa_s, fff)
+INSN(fmaxa_d, fff)
+INSN(fmina_s, fff)
+INSN(fmina_d, fff)
+INSN(fscaleb_s, fff)
+INSN(fscaleb_d, fff)
+INSN(fcopysign_s, fff)
+INSN(fcopysign_d, fff)
+INSN(fabs_s, ff)
+INSN(fabs_d, ff)
+INSN(fneg_s, ff)
+INSN(fneg_d, ff)
+INSN(flogb_s, ff)
+INSN(flogb_d, ff)
+INSN(fclass_s, ff)
+INSN(fclass_d, ff)
+INSN(fsqrt_s, ff)
+INSN(fsqrt_d, ff)
+INSN(frecip_s, ff)
+INSN(frecip_d, ff)
+INSN(frsqrt_s, ff)
+INSN(frsqrt_d, ff)
+INSN(fmov_s, ff)
+INSN(fmov_d, ff)
+INSN(movgr2fr_w, fr)
+INSN(movgr2fr_d, fr)
+INSN(movgr2frh_w, fr)
+INSN(movfr2gr_s, rf)
+INSN(movfr2gr_d, rf)
+INSN(movfrh2gr_s, rf)
+INSN(movgr2fcsr, fcsrd_r)
+INSN(movfcsr2gr, r_fcsrs)
+INSN(movfr2cf, cf)
+INSN(movcf2fr, fc)
+INSN(movgr2cf, cr)
+INSN(movcf2gr, rc)
+INSN(fcvt_s_d, ff)
+INSN(fcvt_d_s, ff)
+INSN(ftintrm_w_s, ff)
+INSN(ftintrm_w_d, ff)
+INSN(ftintrm_l_s, ff)
+INSN(ftintrm_l_d, ff)
+INSN(ftintrp_w_s, ff)
+INSN(ftintrp_w_d, ff)
+INSN(ftintrp_l_s, ff)
+INSN(ftintrp_l_d, ff)
+INSN(ftintrz_w_s, ff)
+INSN(ftintrz_w_d, ff)
+INSN(ftintrz_l_s, ff)
+INSN(ftintrz_l_d, ff)
+INSN(ftintrne_w_s, ff)
+INSN(ftintrne_w_d, ff)
+INSN(ftintrne_l_s, ff)
+INSN(ftintrne_l_d, ff)
+INSN(ftint_w_s, ff)
+INSN(ftint_w_d, ff)
+INSN(ftint_l_s, ff)
+INSN(ftint_l_d, ff)
+INSN(ffint_s_w, ff)
+INSN(ffint_s_l, ff)
+INSN(ffint_d_w, ff)
+INSN(ffint_d_l, ff)
+INSN(frint_s, ff)
+INSN(frint_d, ff)
+INSN(slti, rr_i)
+INSN(sltui, rr_i)
+INSN(addi_w, rr_i)
+INSN(addi_d, rr_i)
+INSN(lu52i_d, rr_i)
+INSN(andi, rr_i)
+INSN(ori, rr_i)
+INSN(xori, rr_i)
+INSN(fmadd_s, ffff)
+INSN(fmadd_d, ffff)
+INSN(fmsub_s, ffff)
+INSN(fmsub_d, ffff)
+INSN(fnmadd_s, ffff)
+INSN(fnmadd_d, ffff)
+INSN(fnmsub_s, ffff)
+INSN(fnmsub_d, ffff)
+INSN(fsel, fffc)
+INSN(addu16i_d, rr_i)
+INSN(lu12i_w, r_i)
+INSN(lu32i_d, r_i)
+INSN(pcaddi, r_i)
+INSN(pcalau12i, r_i)
+INSN(pcaddu12i, r_i)
+INSN(pcaddu18i, r_i)
+INSN(ll_w, rr_i)
+INSN(sc_w, rr_i)
+INSN(ll_d, rr_i)
+INSN(sc_d, rr_i)
+INSN(ldptr_w, rr_i)
+INSN(stptr_w, rr_i)
+INSN(ldptr_d, rr_i)
+INSN(stptr_d, rr_i)
+INSN(ld_b, rr_i)
+INSN(ld_h, rr_i)
+INSN(ld_w, rr_i)
+INSN(ld_d, rr_i)
+INSN(st_b, rr_i)
+INSN(st_h, rr_i)
+INSN(st_w, rr_i)
+INSN(st_d, rr_i)
+INSN(ld_bu, rr_i)
+INSN(ld_hu, rr_i)
+INSN(ld_wu, rr_i)
+INSN(preld, hint_r_i)
+INSN(fld_s, fr_i)
+INSN(fst_s, fr_i)
+INSN(fld_d, fr_i)
+INSN(fst_d, fr_i)
+INSN(ldx_b, rrr)
+INSN(ldx_h, rrr)
+INSN(ldx_w, rrr)
+INSN(ldx_d, rrr)
+INSN(stx_b, rrr)
+INSN(stx_h, rrr)
+INSN(stx_w, rrr)
+INSN(stx_d, rrr)
+INSN(ldx_bu, rrr)
+INSN(ldx_hu, rrr)
+INSN(ldx_wu, rrr)
+INSN(fldx_s, frr)
+INSN(fldx_d, frr)
+INSN(fstx_s, frr)
+INSN(fstx_d, frr)
+INSN(amswap_w, rrr)
+INSN(amswap_d, rrr)
+INSN(amadd_w, rrr)
+INSN(amadd_d, rrr)
+INSN(amand_w, rrr)
+INSN(amand_d, rrr)
+INSN(amor_w, rrr)
+INSN(amor_d, rrr)
+INSN(amxor_w, rrr)
+INSN(amxor_d, rrr)
+INSN(ammax_w, rrr)
+INSN(ammax_d, rrr)
+INSN(ammin_w, rrr)
+INSN(ammin_d, rrr)
+INSN(ammax_wu, rrr)
+INSN(ammax_du, rrr)
+INSN(ammin_wu, rrr)
+INSN(ammin_du, rrr)
+INSN(amswap_db_w, rrr)
+INSN(amswap_db_d, rrr)
+INSN(amadd_db_w, rrr)
+INSN(amadd_db_d, rrr)
+INSN(amand_db_w, rrr)
+INSN(amand_db_d, rrr)
+INSN(amor_db_w, rrr)
+INSN(amor_db_d, rrr)
+INSN(amxor_db_w, rrr)
+INSN(amxor_db_d, rrr)
+INSN(ammax_db_w, rrr)
+INSN(ammax_db_d, rrr)
+INSN(ammin_db_w, rrr)
+INSN(ammin_db_d, rrr)
+INSN(ammax_db_wu, rrr)
+INSN(ammax_db_du, rrr)
+INSN(ammin_db_wu, rrr)
+INSN(ammin_db_du, rrr)
+INSN(dbar, i)
+INSN(ibar, i)
+INSN(fldgt_s, frr)
+INSN(fldgt_d, frr)
+INSN(fldle_s, frr)
+INSN(fldle_d, frr)
+INSN(fstgt_s, frr)
+INSN(fstgt_d, frr)
+INSN(fstle_s, frr)
+INSN(fstle_d, frr)
+INSN(ldgt_b, rrr)
+INSN(ldgt_h, rrr)
+INSN(ldgt_w, rrr)
+INSN(ldgt_d, rrr)
+INSN(ldle_b, rrr)
+INSN(ldle_h, rrr)
+INSN(ldle_w, rrr)
+INSN(ldle_d, rrr)
+INSN(stgt_b, rrr)
+INSN(stgt_h, rrr)
+INSN(stgt_w, rrr)
+INSN(stgt_d, rrr)
+INSN(stle_b, rrr)
+INSN(stle_h, rrr)
+INSN(stle_w, rrr)
+INSN(stle_d, rrr)
+INSN(beqz, r_offs)
+INSN(bnez, r_offs)
+INSN(bceqz, c_offs)
+INSN(bcnez, c_offs)
+INSN(jirl, rr_offs)
+INSN(b, offs)
+INSN(bl, offs)
+INSN(beq, rr_offs)
+INSN(bne, rr_offs)
+INSN(blt, rr_offs)
+INSN(bge, rr_offs)
+INSN(bltu, rr_offs)
+INSN(bgeu, rr_offs)
+
+#define output_fcmp(C, PREFIX, SUFFIX) \
+{ \
+ (C)->info->fprintf_func((C)->info->stream, "%08x %s%s\tfcc%d, f%d, f%d", \
+ (C)->insn, PREFIX, SUFFIX, a->cd, \
+ a->fj, a->fk); \
+}
+
+static bool output_cff_fcond(DisasContext *ctx, arg_cff_fcond * a,
+ const char *suffix)
+{
+ bool ret = true;
+ switch (a->fcond) {
+ case 0x0:
+ output_fcmp(ctx, "fcmp_caf_", suffix);
+ break;
+ case 0x1:
+ output_fcmp(ctx, "fcmp_saf_", suffix);
+ break;
+ case 0x2:
+ output_fcmp(ctx, "fcmp_clt_", suffix);
+ break;
+ case 0x3:
+ output_fcmp(ctx, "fcmp_slt_", suffix);
+ break;
+ case 0x4:
+ output_fcmp(ctx, "fcmp_ceq_", suffix);
+ break;
+ case 0x5:
+ output_fcmp(ctx, "fcmp_seq_", suffix);
+ break;
+ case 0x6:
+ output_fcmp(ctx, "fcmp_cle_", suffix);
+ break;
+ case 0x7:
+ output_fcmp(ctx, "fcmp_sle_", suffix);
+ break;
+ case 0x8:
+ output_fcmp(ctx, "fcmp_cun_", suffix);
+ break;
+ case 0x9:
+ output_fcmp(ctx, "fcmp_sun_", suffix);
+ break;
+ case 0xA:
+ output_fcmp(ctx, "fcmp_cult_", suffix);
+ break;
+ case 0xB:
+ output_fcmp(ctx, "fcmp_sult_", suffix);
+ break;
+ case 0xC:
+ output_fcmp(ctx, "fcmp_cueq_", suffix);
+ break;
+ case 0xD:
+ output_fcmp(ctx, "fcmp_sueq_", suffix);
+ break;
+ case 0xE:
+ output_fcmp(ctx, "fcmp_cule_", suffix);
+ break;
+ case 0xF:
+ output_fcmp(ctx, "fcmp_sule_", suffix);
+ break;
+ case 0x10:
+ output_fcmp(ctx, "fcmp_cne_", suffix);
+ break;
+ case 0x11:
+ output_fcmp(ctx, "fcmp_sne_", suffix);
+ break;
+ case 0x14:
+ output_fcmp(ctx, "fcmp_cor_", suffix);
+ break;
+ case 0x15:
+ output_fcmp(ctx, "fcmp_sor_", suffix);
+ break;
+ case 0x18:
+ output_fcmp(ctx, "fcmp_cune_", suffix);
+ break;
+ case 0x19:
+ output_fcmp(ctx, "fcmp_sune_", suffix);
+ break;
+ default:
+ ret = false;
+ }
+ return ret;
+}
+
+#define FCMP_INSN(suffix) \
+static bool trans_fcmp_cond_##suffix(DisasContext *ctx, \
+ arg_cff_fcond * a) \
+{ \
+ return output_cff_fcond(ctx, a, #suffix); \
+}
+
+FCMP_INSN(s)
+FCMP_INSN(d)