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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id y12sm2874539wrn.74.2019.09.27.07.42.56 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Sep 2019 07:42:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=K5D482SdubcI8oAEapAROne6mJkYVKrkCojoFwsjKIQ=; b=GcPNAYMIcc68un/BPgssz275ihFb1S4y3xo6CG+/9b6QwnPnKHG3PnR67AO/cOYw5Z jj+IGKcZwkeFPQzY7mCQS+zZowezahb7u9dwFcpAuSAOsrH9zt0xeqMUMsDzF6KcevdN VMfnbm7L16srkp+p1sQLXf6fLa8zvInMqe1m/veA+5Ih/4qoINtCNimYDE/BGN1hhJW4 uv7ClzSEdgClegQMf3u2AgNTymwrrKqHmr0huJpxUcGJ+qpbk0YpOoa/+Yj+okDxLgC9 ACM6XTH4tRoHDJZKwEinAN6c1cOaXQyyXKuu14VitgH+1c0NTg6aDrNzAfMnJnQVH8l4 fGNQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=K5D482SdubcI8oAEapAROne6mJkYVKrkCojoFwsjKIQ=; b=oEy2oI8vbFrq6lCLAvHsztU+t4vi02ePZWxIBemhB+YEUbywpsJH0rcxNxE8pfBb8I jVkgfb0cB+OU81CMcxjGo9lITrejb46uU97xVwEq1JQkHT3BxejJXhqjapi1t910wGv/ fCYkfQqZNircmaG6HBiLNgWb/i60GGHwuDkyBln3Ba/a3NGbwnL8ELZVpoAc/fBjoNkM bYCi0jVyMYsKu2tE4pOtrzEkPwECvayKTUk8B95juFDHCKsqtcY7pyrs2fhokuGrG/D6 iMZIf2L8IVvoBQ46+kdcq2+qRYgEf5C/dz7PoGmuI1kYarLzH3/ua7RVgNpAlWFQo+Yj 4Ggw== X-Gm-Message-State: APjAAAUK/9Uv6zDtcaYCqCGhTiLHgxsDXe2k6pGFDn4lOZptFkJYea2n DtKBGAO+vMwrrjXa+gj3NVBl5YKvOWlwEg== X-Google-Smtp-Source: APXvYqx4MTSQoFQz1dWiSZTkjxA0Xwg9M/MjcY6X6T6v5GGdmHpCmdW0TPpZi5FAqSOnYIt/Vh+a2A== X-Received: by 2002:a1c:7704:: with SMTP id t4mr7586741wmi.133.1569595377601; Fri, 27 Sep 2019 07:42:57 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 6/9] target/arm: remove run-time semihosting checks for linux-user Date: Fri, 27 Sep 2019 15:42:46 +0100 Message-Id: <20190927144249.29999-7-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190927144249.29999-1-peter.maydell@linaro.org> References: <20190927144249.29999-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::432 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) From: Alex Benn=C3=A9e Now we do all our checking at translate time we can make cpu_loop a little bit simpler. We also introduce a simple linux-user semihosting test case to defend the functionality. The out-of-tree softmmu based semihosting tests are still more comprehensive. Signed-off-by: Alex Benn=C3=A9e Message-id: 20190913151845.12582-6-alex.bennee@linaro.org Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell --- linux-user/arm/target_syscall.h | 3 --- linux-user/arm/cpu_loop.c | 3 --- 2 files changed, 6 deletions(-) diff --git a/linux-user/arm/target_syscall.h b/linux-user/arm/target_syscal= l.h index afc0772e194..f85cbdaf56f 100644 --- a/linux-user/arm/target_syscall.h +++ b/linux-user/arm/target_syscall.h @@ -18,9 +18,6 @@ struct target_pt_regs { #define ARM_NR_set_tls (ARM_NR_BASE + 5) #define ARM_NR_get_tls (ARM_NR_BASE + 6) =20 -#define ARM_NR_semihosting 0x123456 -#define ARM_NR_thumb_semihosting 0xAB - #if defined(TARGET_WORDS_BIGENDIAN) #define UNAME_MACHINE "armv5teb" #else diff --git a/linux-user/arm/cpu_loop.c b/linux-user/arm/cpu_loop.c index 8d65de5b9f4..e28c45cd4ab 100644 --- a/linux-user/arm/cpu_loop.c +++ b/linux-user/arm/cpu_loop.c @@ -325,9 +325,6 @@ void cpu_loop(CPUARMState *env) =20 if (n =3D=3D ARM_NR_cacheflush) { /* nop */ - } else if (n =3D=3D ARM_NR_semihosting - || n =3D=3D ARM_NR_thumb_semihosting) { - env->regs[0] =3D do_arm_semihosting (env); } else if (n =3D=3D 0 || n >=3D ARM_SYSCALL_BASE || env->t= humb) { /* linux syscall */ if (env->thumb || n =3D=3D 0) { --=20 2.20.1