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target/i386: Remove #ifdeffed-out icebp debugging hack 

Remove a debugging hack which could be used to cause the
undocumented 'icebp' instruction to enable QEMU internal
debug logging. This code has always been #ifdeffed out
since it was introduced in commit aba9d61e34 in 2005;
judging by the rest of that commit (which is entirely
unrelated) it may have even been committed by accident.

(Note that WANT_ICEBP is not defined by default anyway.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20181009183314.13416-1-peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
master
Peter Maydell 2018-10-09 19:33:14 +01:00 committed by Eduardo Habkost
parent de2e68c902
commit 38bf9e3b61
1 changed files with 0 additions and 6 deletions
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6
target/i386/translate.c
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@ -7028,13 +7028,7 @@ static target_ulong disas_insn(DisasContext *s, CPUState *cpu)
#ifdef WANT_ICEBP
case 0xf1: /* icebp (undocumented, exits to external debugger) */
gen_svm_check_intercept(s, pc_start, SVM_EXIT_ICEBP);
#if 1
gen_debug(s, pc_start - s->cs_base);
#else
/* start debug */
tb_flush(CPU(x86_env_get_cpu(env)));
qemu_set_log(CPU_LOG_INT | CPU_LOG_TB_IN_ASM);
#endif
break;
#endif
case 0xfa: /* cli */