Commit ce7cf6a9 authored by Alex Bennée's avatar Alex Bennée Committed by Paolo Bonzini
Browse files

qom/cpu: atomically clear the tb_jmp_cache 



The ThreadSanitizer rightly complains that something initialised with a
normal access is later updated and read atomically.

Signed-off-by: default avatarAlex Bennée <alex.bennee@linaro.org>
Message-Id: <20160930213106.20186-8-alex.bennee@linaro.org>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent b6b3ccfd

qom/cpu.c

+5 −1
Original line number Diff line number Diff line
@@ -253,6 +253,7 @@ void cpu_reset(CPUState *cpu) 
static void cpu_common_reset(CPUState *cpu)

{

    CPUClass *cc = CPU_GET_CLASS(cpu);

    int i;



    if (qemu_loglevel_mask(CPU_LOG_RESET)) {

        qemu_log("CPU Reset (CPU %d)\n", cpu->cpu_index);
@@ -268,7 +269,10 @@ static void cpu_common_reset(CPUState *cpu) 
    cpu->can_do_io = 1;

    cpu->exception_index = -1;

    cpu->crash_occurred = false;

    memset(cpu->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof(void *));



    for (i = 0; i < TB_JMP_CACHE_SIZE; ++i) {

        atomic_set(&cpu->tb_jmp_cache[i], NULL);

    }

}



static bool cpu_common_has_work(CPUState *cs)