The kernel will emulate this instruction if it's not supported
natively. This insn is used for TLS, among other things, and
so is required by modern glibc.
Signed-off-by: Richard Henderson <r...@twiddle.net>
Cc: Riku Voipio <riku.voi...@iki.fi>
---
target-mips/translate.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/target-mips/translate.c b/target-mips/translate.c
index 300d95e..ed28ca8 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -8111,7 +8111,11 @@ gen_rdhwr (CPUMIPSState *env, DisasContext *ctx, int rt,
int rd)
{
TCGv t0;
+#if !defined(CONFIG_USER_ONLY)
+ /* The Linux kernel will emulate rdhwr if it's not supported natively.
+ Therefore only check the ISA in system mode. */
check_insn(env, ctx, ISA_MIPS32R2);
+#endif
t0 = tcg_temp_new();
switch (rd) {
--
1.7.7.6
