diff options
Diffstat (limited to 'target-arm/translate-a64.c')
| -rw-r--r-- | target-arm/translate-a64.c | 49 |
1 files changed, 35 insertions, 14 deletions
diff --git a/target-arm/translate-a64.c b/target-arm/translate-a64.c index 37399df153..210df2d6b4 100644 --- a/target-arm/translate-a64.c +++ b/target-arm/translate-a64.c @@ -176,18 +176,37 @@ void gen_a64_set_pc_im(uint64_t val) tcg_gen_movi_i64(cpu_pc, val); } -static void gen_exception(int excp) +static void gen_exception_internal(int excp) { - TCGv_i32 tmp = tcg_temp_new_i32(); - tcg_gen_movi_i32(tmp, excp); - gen_helper_exception(cpu_env, tmp); - tcg_temp_free_i32(tmp); + TCGv_i32 tcg_excp = tcg_const_i32(excp); + + assert(excp_is_internal(excp)); + gen_helper_exception_internal(cpu_env, tcg_excp); + tcg_temp_free_i32(tcg_excp); +} + +static void gen_exception(int excp, uint32_t syndrome) +{ + TCGv_i32 tcg_excp = tcg_const_i32(excp); + TCGv_i32 tcg_syn = tcg_const_i32(syndrome); + + gen_helper_exception_with_syndrome(cpu_env, tcg_excp, tcg_syn); + tcg_temp_free_i32(tcg_syn); + tcg_temp_free_i32(tcg_excp); +} + +static void gen_exception_internal_insn(DisasContext *s, int offset, int excp) +{ + gen_a64_set_pc_im(s->pc - offset); + gen_exception_internal(excp); + s->is_jmp = DISAS_EXC; } -static void gen_exception_insn(DisasContext *s, int offset, int excp) +static void gen_exception_insn(DisasContext *s, int offset, int excp, + uint32_t syndrome) { gen_a64_set_pc_im(s->pc - offset); - gen_exception(excp); + gen_exception(excp, syndrome); s->is_jmp = DISAS_EXC; } @@ -219,7 +238,7 @@ static inline void gen_goto_tb(DisasContext *s, int n, uint64_t dest) } else { gen_a64_set_pc_im(dest); if (s->singlestep_enabled) { - gen_exception(EXCP_DEBUG); + gen_exception_internal(EXCP_DEBUG); } tcg_gen_exit_tb(0); s->is_jmp = DISAS_JUMP; @@ -228,7 +247,8 @@ static inline void gen_goto_tb(DisasContext *s, int n, uint64_t dest) static void unallocated_encoding(DisasContext *s) { - gen_exception_insn(s, 4, EXCP_UDEF); + /* Unallocated and reserved encodings are uncategorized */ + gen_exception_insn(s, 4, EXCP_UDEF, syn_uncategorized()); } #define unsupported_encoding(s, insn) \ @@ -1373,6 +1393,7 @@ static void disas_exc(DisasContext *s, uint32_t insn) { int opc = extract32(insn, 21, 3); int op2_ll = extract32(insn, 0, 5); + int imm16 = extract32(insn, 5, 16); switch (opc) { case 0: @@ -1383,7 +1404,7 @@ static void disas_exc(DisasContext *s, uint32_t insn) unallocated_encoding(s); break; } - gen_exception_insn(s, 0, EXCP_SWI); + gen_exception_insn(s, 0, EXCP_SWI, syn_aa64_svc(imm16)); break; case 1: if (op2_ll != 0) { @@ -1391,7 +1412,7 @@ static void disas_exc(DisasContext *s, uint32_t insn) break; } /* BRK */ - gen_exception_insn(s, 0, EXCP_BKPT); + gen_exception_insn(s, 0, EXCP_BKPT, syn_aa64_bkpt(imm16)); break; case 2: if (op2_ll != 0) { @@ -1540,7 +1561,7 @@ static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2, tcg_gen_mov_i64(cpu_exclusive_test, addr); tcg_gen_movi_i32(cpu_exclusive_info, size | is_pair << 2 | (rd << 4) | (rt << 9) | (rt2 << 14)); - gen_exception_insn(s, 4, EXCP_STREX); + gen_exception_internal_insn(s, 4, EXCP_STREX); } #else static void gen_store_exclusive(DisasContext *s, int rd, int rt, int rt2, @@ -10338,7 +10359,7 @@ void gen_intermediate_code_internal_a64(ARMCPU *cpu, if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) { QTAILQ_FOREACH(bp, &cs->breakpoints, entry) { if (bp->pc == dc->pc) { - gen_exception_insn(dc, 0, EXCP_DEBUG); + gen_exception_internal_insn(dc, 0, EXCP_DEBUG); /* Advance PC so that clearing the breakpoint will invalidate this TB. */ dc->pc += 2; @@ -10401,7 +10422,7 @@ void gen_intermediate_code_internal_a64(ARMCPU *cpu, if (dc->is_jmp != DISAS_JUMP) { gen_a64_set_pc_im(dc->pc); } - gen_exception(EXCP_DEBUG); + gen_exception_internal(EXCP_DEBUG); } else { switch (dc->is_jmp) { case DISAS_NEXT: |