From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:44830) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SDfUX-0002ZF-QF for qemu-devel@nongnu.org; Fri, 30 Mar 2012 13:20:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SDfUS-000681-U4 for qemu-devel@nongnu.org; Fri, 30 Mar 2012 13:20:01 -0400 Received: from mail-qc0-f173.google.com ([209.85.216.173]:42356) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SDfUS-00062f-LP for qemu-devel@nongnu.org; Fri, 30 Mar 2012 13:19:56 -0400 Received: by qcsc20 with SMTP id c20so505358qcs.4 for ; Fri, 30 Mar 2012 10:19:55 -0700 (PDT) Sender: Richard Henderson From: Richard Henderson Date: Fri, 30 Mar 2012 13:16:37 -0400 Message-Id: <1333127797-8133-3-git-send-email-rth@twiddle.net> In-Reply-To: <1333127797-8133-1-git-send-email-rth@twiddle.net> References: <1333127797-8133-1-git-send-email-rth@twiddle.net> Subject: [Qemu-devel] [PATCH 2/2] mips-linux-user: Always support rdhwr. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Riku Voipio , aurelien@aurel32.net 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 Cc: Riku Voipio --- 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