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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id 5sm18029779wrk.86.2019.10.14.09.05.06 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Oct 2019 09:05:06 -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=DKGrYcoSwF8i1yBqgJnCMl96wMrcE5OTnAG0MbPbFs4=; b=cCVBuCvyzKFvmJen8qHaWR3HQPgJukXqNRhsWrKlMOlX2ik7s3pk1ymd7uTZPRhG47 iGI0BUFLYmDHUfMuggQDAM8TvknhO4ZVc+5E8dNkx0QO/TFVJ5weX3XqIncSzFhzt6Gj oWsfWFrEtbYqmFL4lrqlyuBTVo38AXmqG+UbJGguEGgcLeWwV/TtfN6v8StHY2VTlpF3 bSXSig9lPooSo9iGK4xhmWDM4MmCYym5yF7DB6nrhWUTyoYhrt8cYy5UhOflSmmzsbf6 jFRYgj4CAq7l8PVN819mn+elQliVFS58JG+NTpQCIkn8OSJxUEB08Wue+QKFqd2Zbsv6 zZoQ== 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=DKGrYcoSwF8i1yBqgJnCMl96wMrcE5OTnAG0MbPbFs4=; b=Cnpyt7k3LOt7995X+nFwG5endMqX1+01ZdD7EvTBIrzF69WftB01ihkDgzA2wln98y Jo5kl/tXeMn3NYQqMUlf61jgVcZ4R2Ll7W1fqVaEv11hBBPnR0jzalRXqa2q4/jxuX4c 42RS0miNBpZw9fTH0ft6atILeBiNbQfvfuvjBOGoLiUoVbZ8Krlf0YX7TzIeIFvYx1HT cAcek4Jb6yn0TWEZnXN0hl/YPuFSEBvvoTRAr+6YbBMs2j6RqnKfI1MTSNXs4sJgL7Md F/L3iRA1tN8JW/gLYWYvb6y++c/3LXV0qvhrAfBtVHEE0klJT0p/Crg9XPFm5MDKRxDf qByw== X-Gm-Message-State: APjAAAUpZyHSq2lP0TCWaPxwGCpyuloP9hgFh4UJpQF4t1JbVtp0H7z9 dQgy9JsO/ufogwA1QGPZyfJt3KfpYKc6rg== X-Google-Smtp-Source: APXvYqye90yfJh7XrHjgEHEp/CXuiCrurp+rWKBQHaCLcZc7twY2VB773T1YzGsoj2bSNwuSr88BGQ== X-Received: by 2002:adf:e2c5:: with SMTP id d5mr12604292wrj.283.1571069107427; Mon, 14 Oct 2019 09:05:07 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 35/68] target/arm/arm-semi: Factor out implementation of SYS_SEEK Date: Mon, 14 Oct 2019 17:03:31 +0100 Message-Id: <20191014160404.19553-36-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191014160404.19553-1-peter.maydell@linaro.org> References: <20191014160404.19553-1-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::443 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) Factor out the implementation of SYS_SEEK via the new function tables. Signed-off-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daud=C3=A9 Message-id: 20190916141544.17540-12-peter.maydell@linaro.org --- target/arm/arm-semi.c | 31 ++++++++++++++++++++++--------- 1 file changed, 22 insertions(+), 9 deletions(-) diff --git a/target/arm/arm-semi.c b/target/arm/arm-semi.c index ecd51338fd3..b5e1d73eb80 100644 --- a/target/arm/arm-semi.c +++ b/target/arm/arm-semi.c @@ -389,6 +389,8 @@ typedef uint32_t sys_writefn(ARMCPU *cpu, GuestFD *gf, typedef uint32_t sys_readfn(ARMCPU *cpu, GuestFD *gf, target_ulong buf, uint32_t len); typedef uint32_t sys_isattyfn(ARMCPU *cpu, GuestFD *gf); +typedef uint32_t sys_seekfn(ARMCPU *cpu, GuestFD *gf, + target_ulong offset); =20 static uint32_t host_closefn(ARMCPU *cpu, GuestFD *gf) { @@ -442,6 +444,16 @@ static uint32_t host_isattyfn(ARMCPU *cpu, GuestFD *gf) return isatty(gf->hostfd); } =20 +static uint32_t host_seekfn(ARMCPU *cpu, GuestFD *gf, target_ulong offset) +{ + CPUARMState *env =3D &cpu->env; + uint32_t ret =3D set_swi_errno(env, lseek(gf->hostfd, offset, SEEK_SET= )); + if (ret =3D=3D (uint32_t)-1) { + return -1; + } + return 0; +} + static uint32_t gdb_closefn(ARMCPU *cpu, GuestFD *gf) { return arm_gdb_syscall(cpu, arm_semi_cb, "close,%x", gf->hostfd); @@ -468,11 +480,18 @@ static uint32_t gdb_isattyfn(ARMCPU *cpu, GuestFD *gf) return arm_gdb_syscall(cpu, arm_semi_cb, "isatty,%x", gf->hostfd); } =20 +static uint32_t gdb_seekfn(ARMCPU *cpu, GuestFD *gf, target_ulong offset) +{ + return arm_gdb_syscall(cpu, arm_semi_cb, "lseek,%x,%x,0", + gf->hostfd, offset); +} + typedef struct GuestFDFunctions { sys_closefn *closefn; sys_writefn *writefn; sys_readfn *readfn; sys_isattyfn *isattyfn; + sys_seekfn *seekfn; } GuestFDFunctions; =20 static const GuestFDFunctions guestfd_fns[] =3D { @@ -481,12 +500,14 @@ static const GuestFDFunctions guestfd_fns[] =3D { .writefn =3D host_writefn, .readfn =3D host_readfn, .isattyfn =3D host_isattyfn, + .seekfn =3D host_seekfn, }, [GuestFDGDB] =3D { .closefn =3D gdb_closefn, .writefn =3D gdb_writefn, .readfn =3D gdb_readfn, .isattyfn =3D gdb_isattyfn, + .seekfn =3D gdb_seekfn, }, }; =20 @@ -656,15 +677,7 @@ target_ulong do_arm_semihosting(CPUARMState *env) return set_swi_errno(env, -1); } =20 - if (use_gdb_syscalls()) { - return arm_gdb_syscall(cpu, arm_semi_cb, "lseek,%x,%x,0", - gf->hostfd, arg1); - } else { - ret =3D set_swi_errno(env, lseek(gf->hostfd, arg1, SEEK_SET)); - if (ret =3D=3D (uint32_t)-1) - return -1; - return 0; - } + return guestfd_fns[gf->type].seekfn(cpu, gf, arg1); case TARGET_SYS_FLEN: GET_ARG(0); =20 --=20 2.20.1