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fixed self modifying code in case of asynchronous interrupt

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@924 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-06-14 18:56:36 +00:00
parent 516633dc42
commit ea1c18022e
1 changed files with 8 additions and 1 deletions
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9
exec.c
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@ -613,7 +613,7 @@ void tb_invalidate_phys_page_range(target_ulong start, target_ulong end,
CPUState *env = cpu_single_env; CPUState *env = cpu_single_env;
#endif #endif
PageDesc *p; PageDesc *p;
TranslationBlock *tb, *tb_next, *current_tb; TranslationBlock *tb, *tb_next, *current_tb, *saved_tb;
target_ulong tb_start, tb_end; target_ulong tb_start, tb_end;
target_ulong current_pc, current_cs_base; target_ulong current_pc, current_cs_base;
@ -681,7 +681,12 @@ void tb_invalidate_phys_page_range(target_ulong start, target_ulong end,
#endif #endif
} }
#endif /* TARGET_HAS_PRECISE_SMC */ #endif /* TARGET_HAS_PRECISE_SMC */
saved_tb = env->current_tb;
env->current_tb = NULL;
tb_phys_invalidate(tb, -1); tb_phys_invalidate(tb, -1);
env->current_tb = saved_tb;
if (env->interrupt_request && env->current_tb)
cpu_interrupt(env, env->interrupt_request);
} }
tb = tb_next; tb = tb_next;
} }
@ -699,6 +704,7 @@ void tb_invalidate_phys_page_range(target_ulong start, target_ulong end,
/* we generate a block containing just the instruction /* we generate a block containing just the instruction
modifying the memory. It will ensure that it cannot modify modifying the memory. It will ensure that it cannot modify
itself */ itself */
env->current_tb = NULL;
tb_gen_code(env, current_pc, current_cs_base, current_flags, tb_gen_code(env, current_pc, current_cs_base, current_flags,
CF_SINGLE_INSN); CF_SINGLE_INSN);
cpu_resume_from_signal(env, NULL); cpu_resume_from_signal(env, NULL);
@ -795,6 +801,7 @@ static void tb_invalidate_phys_page(target_ulong addr,
/* we generate a block containing just the instruction /* we generate a block containing just the instruction
modifying the memory. It will ensure that it cannot modify modifying the memory. It will ensure that it cannot modify
itself */ itself */
env->current_tb = NULL;
tb_gen_code(env, current_pc, current_cs_base, current_flags, tb_gen_code(env, current_pc, current_cs_base, current_flags,
CF_SINGLE_INSN); CF_SINGLE_INSN);
cpu_resume_from_signal(env, puc); cpu_resume_from_signal(env, puc);