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target-m68k: Build the opcode table only once to avoid multithreading issues

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Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
John Paul Adrian Glaubitz 2016-02-03 10:22:35 +01:00 committed by Laurent Vivier
parent a1ff193020
commit b208525797
1 changed files with 5 additions and 0 deletions
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5
target-m68k/translate.c
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@ -2841,6 +2841,11 @@ register_opcode (disas_proc proc, uint16_t opcode, uint16_t mask)
Later insn override earlier ones. */
void register_m68k_insns (CPUM68KState *env)
{
/* Build the opcode table only once to avoid
multithreading issues. */
if (opcode_table[0] != NULL) {
return;
}
#define INSN(name, opcode, mask, feature) do { \
if (m68k_feature(env, M68K_FEATURE_##feature)) \
register_opcode(disas_##name, 0x##opcode, 0x##mask); \