target/i386: Remove cur_eip argument to gen_exception
All callers pass s->base.pc_next - s->cs_base, which we can just as well compute within the function. Note the special case of EXCP_VSYSCALL in which s->cs_base wasn't subtracted, but cs_base is always zero in 64-bit mode, when vsyscall is used. Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20221001140935.465607-4-richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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@ -1332,10 +1332,10 @@ static void gen_helper_fp_arith_STN_ST0(int op, int opreg)
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}
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}
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static void gen_exception(DisasContext *s, int trapno, target_ulong cur_eip)
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static void gen_exception(DisasContext *s, int trapno)
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{
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gen_update_cc_op(s);
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gen_jmp_im(s, cur_eip);
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gen_jmp_im(s, s->base.pc_next - s->cs_base);
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gen_helper_raise_exception(cpu_env, tcg_const_i32(trapno));
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s->base.is_jmp = DISAS_NORETURN;
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}
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@ -1344,13 +1344,13 @@ static void gen_exception(DisasContext *s, int trapno, target_ulong cur_eip)
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the instruction is known, but it isn't allowed in the current cpu mode. */
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static void gen_illegal_opcode(DisasContext *s)
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{
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gen_exception(s, EXCP06_ILLOP, s->base.pc_next - s->cs_base);
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gen_exception(s, EXCP06_ILLOP);
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}
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/* Generate #GP for the current instruction. */
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static void gen_exception_gpf(DisasContext *s)
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{
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gen_exception(s, EXCP0D_GPF, s->base.pc_next - s->cs_base);
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gen_exception(s, EXCP0D_GPF);
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}
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/* Check for cpl == 0; if not, raise #GP and return false. */
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@ -3267,7 +3267,7 @@ static void gen_sse(CPUX86State *env, DisasContext *s, int b)
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}
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/* simple MMX/SSE operation */
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if (s->flags & HF_TS_MASK) {
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gen_exception(s, EXCP07_PREX, s->base.pc_next - s->cs_base);
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gen_exception(s, EXCP07_PREX);
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return;
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}
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if (s->flags & HF_EM_MASK) {
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@ -6077,7 +6077,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
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if (s->flags & (HF_EM_MASK | HF_TS_MASK)) {
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/* if CR0.EM or CR0.TS are set, generate an FPU exception */
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/* XXX: what to do if illegal op ? */
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gen_exception(s, EXCP07_PREX, s->base.pc_next - s->cs_base);
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gen_exception(s, EXCP07_PREX);
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break;
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}
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modrm = x86_ldub_code(env, s);
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@ -7302,7 +7302,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
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goto illegal_op;
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val = x86_ldub_code(env, s);
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if (val == 0) {
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gen_exception(s, EXCP00_DIVZ, s->base.pc_next - s->cs_base);
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gen_exception(s, EXCP00_DIVZ);
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} else {
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gen_helper_aam(cpu_env, tcg_const_i32(val));
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set_cc_op(s, CC_OP_LOGICB);
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@ -7336,7 +7336,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
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case 0x9b: /* fwait */
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if ((s->flags & (HF_MP_MASK | HF_TS_MASK)) ==
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(HF_MP_MASK | HF_TS_MASK)) {
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gen_exception(s, EXCP07_PREX, s->base.pc_next - s->cs_base);
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gen_exception(s, EXCP07_PREX);
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} else {
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gen_helper_fwait(cpu_env);
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}
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@ -8393,7 +8393,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
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goto illegal_op;
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}
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if ((s->flags & HF_EM_MASK) || (s->flags & HF_TS_MASK)) {
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gen_exception(s, EXCP07_PREX, s->base.pc_next - s->cs_base);
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gen_exception(s, EXCP07_PREX);
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break;
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}
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gen_lea_modrm(env, s, modrm);
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@ -8406,7 +8406,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
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goto illegal_op;
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}
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if ((s->flags & HF_EM_MASK) || (s->flags & HF_TS_MASK)) {
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gen_exception(s, EXCP07_PREX, s->base.pc_next - s->cs_base);
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gen_exception(s, EXCP07_PREX);
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break;
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}
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gen_lea_modrm(env, s, modrm);
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@ -8418,7 +8418,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
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goto illegal_op;
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}
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if (s->flags & HF_TS_MASK) {
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gen_exception(s, EXCP07_PREX, s->base.pc_next - s->cs_base);
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gen_exception(s, EXCP07_PREX);
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break;
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}
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gen_lea_modrm(env, s, modrm);
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@ -8431,7 +8431,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu)
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goto illegal_op;
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}
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if (s->flags & HF_TS_MASK) {
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gen_exception(s, EXCP07_PREX, s->base.pc_next - s->cs_base);
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gen_exception(s, EXCP07_PREX);
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break;
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}
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gen_helper_update_mxcsr(cpu_env);
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@ -8822,7 +8822,7 @@ static void i386_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu)
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* Detect entry into the vsyscall page and invoke the syscall.
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*/
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if ((dc->base.pc_next & TARGET_PAGE_MASK) == TARGET_VSYSCALL_PAGE) {
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gen_exception(dc, EXCP_VSYSCALL, dc->base.pc_next);
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gen_exception(dc, EXCP_VSYSCALL);
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dc->base.pc_next = dc->pc + 1;
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return;
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}
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