From patchwork Wed Jun 8 02:38:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 579802 Delivered-To: patch@linaro.org Received: by 2002:a05:7000:5806:0:0:0:0 with SMTP id j6csp5715354max; Tue, 7 Jun 2022 19:39:45 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyY7kgGSPW2QiVQwKgc6zQE2kphPRaGIxwLiL1llqP4/vCNyjplzmtw3z/OpfI+5IOpNSCb X-Received: by 2002:ac8:5e4c:0:b0:2f3:c50e:53a6 with SMTP id i12-20020ac85e4c000000b002f3c50e53a6mr25510726qtx.499.1654655985174; Tue, 07 Jun 2022 19:39:45 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1654655985; cv=none; d=google.com; s=arc-20160816; b=hI7j9NcCBXiSSxT8ermHDzmJ2iPyA3OdkekUx4THjgdH/qi3b1OU2NQDk2zMKEjNZq 6o3Es0OgXY4X4dW5yfZVa4m9qcCFSrmpcGjooYxgIK0STBM+foemjZikird7IL6vAI/6 MPzhYDjK6+hiIKi6V/4p4JA04Znv4ySRMJMh2MCdB2hhI5mqD+gndNP7M6bAeZuSG7CK NNTZbKYJqwSHMRnkAEf5BYhSxmIhgobd3+/85to0Ymz8gEqjzETs10Hkoz4+vTyGDWeG JeZmLrVMlDHriUUfKgwq15PHCd4RgzCLXIHnQiXakSCszGlJU5LF+2DuA26fSQPXJZ/q 3jBQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:to:from :dkim-signature; bh=G5TUXq2IL4pMyRpoJ6zLWtNUYnfueO0F38AbAA6OUSY=; b=IpbmvdDZbX+ywBH3D8SLsoIzW9zfXwGCCKoaOTcuBVYw6jKZthJCI9eWJldwTgTY2A 8zmnklY7Gmlw3BsIfmYuxWNdc/19tc0IXTtMtF9NCdK0/QaJ/QyB63cjZgCkXBat5tmK NbyDGXtsGY16iQSes4w5Hw/c1el1Hwxy7vgX4I00Tq5+9j0HpdUBj7B7KV38gi0uhXbi 5Z2HJ8z4OqZEmFLfsbantDPwoziuDxU6TMh87GHT32V3flNLPU/2ZRRWSM0qG+b/u3my ialZLbudARufgOPm+/KJ5P1iMaEV8U5VT0zu5mQry4OXc0Qi7+cw0b9ueJPe8lblYirx r4bA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=ENFrzuV4; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org. [209.51.188.17]) by mx.google.com with ESMTPS id 4-20020ac85944000000b00304e610f177si6450796qtz.586.2022.06.07.19.39.45 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 07 Jun 2022 19:39:45 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=ENFrzuV4; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1]:43192 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nylbk-0007jb-Ke for patch@linaro.org; Tue, 07 Jun 2022 22:39:44 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41458) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nylaQ-0007jA-Ix for qemu-devel@nongnu.org; Tue, 07 Jun 2022 22:38:22 -0400 Received: from mail-pf1-x42c.google.com ([2607:f8b0:4864:20::42c]:37434) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nylaO-0004hC-Lx for qemu-devel@nongnu.org; Tue, 07 Jun 2022 22:38:22 -0400 Received: by mail-pf1-x42c.google.com with SMTP id bo5so17147262pfb.4 for ; Tue, 07 Jun 2022 19:38:20 -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=G5TUXq2IL4pMyRpoJ6zLWtNUYnfueO0F38AbAA6OUSY=; b=ENFrzuV4WG0/5QifqqXMOZptcfUEso/O432PEsuly6cgBqOipsyGXD959JHAUSTMDy XCy9B4/qbu6f4LHZOPs47mlwjeSSaQA0+ucoqn03keQui3Ot4DlvD2BvMwchTTdywLFq 0sHC1x3dvZv1E8e8c9FQY0c8lZ3ApQi4D1DzMyjT0+Ob+BsZXTijBMLMKOsR6ItjaCvQ ElbshKAHxk6DmvQ2G46x3O1yNs0XnFlCUgvEWNWl+w9XHs5HE0wZY+hZ+wlLIkGG4tnE aXRGwu8x23Il6Peo3ufklYNX5jY+8297nWuMproNAEUcFL5W7bW0g9vgWX5Rrzz+1RP+ 70jg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=G5TUXq2IL4pMyRpoJ6zLWtNUYnfueO0F38AbAA6OUSY=; b=yG3xPl/K3SogppETIDjk1HHny92eQofoZtdfKo1vfPICB1g16Odcpzf+JKou1gRfqt Fwq2X8X0C7V++L3QWbhcnNmI/WuH0CY+GndfE/mnsfMCJRxKiN8vXNAL3owOSFetsEGD 3G9vcFr6LVkKB0Ts45EMFcOTN4w0UruHptiKJChrkAeMCqlPmBCLyf/jmeA078OcIunH /OyjGx82Ceaz7dsSw7mPhZsOEoInk9hjX4Mrb35K3pr+2cH68ivqNfi3l2WGxt4M/d6J 55KZgEH7giDPK+mdwofJ2qqWXChDHDxXuPwIqODuF18rlTyrRDkk3d16dbAnWc5QYwBw Y8vg== X-Gm-Message-State: AOAM530W5iW1HAkK9WNp6Gcfv7rUhgTEPOtBhgd78njdT558++QEu6a4 AWwmKvsZvT3wo9Xx1UrmXozZp/KqTd/EHQ== X-Received: by 2002:a62:544:0:b0:51b:a90d:64d3 with SMTP id 65-20020a620544000000b0051ba90d64d3mr32529534pff.40.1654655898653; Tue, 07 Jun 2022 19:38:18 -0700 (PDT) Received: from stoup.. ([2602:ae:1547:e101:c626:2f70:ac99:7c97]) by smtp.gmail.com with ESMTPSA id b19-20020a63d813000000b003f66a518e48sm13607398pgh.86.2022.06.07.19.38.18 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jun 2022 19:38:18 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v4 1/3] target/nios2: Eliminate nios2_semi_is_lseek Date: Tue, 7 Jun 2022 19:38:14 -0700 Message-Id: <20220608023816.759426-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220608023816.759426-1-richard.henderson@linaro.org> References: <20220608023816.759426-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::42c; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x42c.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" Reorg nios2_semi_return_* to gdb_syscall_complete_cb. Use the 32-bit version normally, and the 64-bit version for HOSTED_LSEEK. Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daudé --- target/nios2/nios2-semi.c | 59 +++++++++++++++------------------------ 1 file changed, 23 insertions(+), 36 deletions(-) diff --git a/target/nios2/nios2-semi.c b/target/nios2/nios2-semi.c index 4d02789d26..bdf8849689 100644 --- a/target/nios2/nios2-semi.c +++ b/target/nios2/nios2-semi.c @@ -108,9 +108,12 @@ static bool translate_stat(CPUNios2State *env, target_ulong addr, return true; } -static void nios2_semi_return_u32(CPUNios2State *env, uint32_t ret, int err) +static void nios2_semi_u32_cb(CPUState *cs, uint64_t ret, int err) { + Nios2CPU *cpu = NIOS2_CPU(cs); + CPUNios2State *env = &cpu->env; target_ulong args = env->regs[R_ARG1]; + if (put_user_u32(ret, args) || put_user_u32(err, args + 4)) { /* @@ -123,9 +126,12 @@ static void nios2_semi_return_u32(CPUNios2State *env, uint32_t ret, int err) } } -static void nios2_semi_return_u64(CPUNios2State *env, uint64_t ret, int err) +static void nios2_semi_u64_cb(CPUState *cs, uint64_t ret, int err) { + Nios2CPU *cpu = NIOS2_CPU(cs); + CPUNios2State *env = &cpu->env; target_ulong args = env->regs[R_ARG1]; + if (put_user_u32(ret >> 32, args) || put_user_u32(ret, args + 4) || put_user_u32(err, args + 8)) { @@ -135,25 +141,6 @@ static void nios2_semi_return_u64(CPUNios2State *env, uint64_t ret, int err) } } -static int nios2_semi_is_lseek; - -static void nios2_semi_cb(CPUState *cs, uint64_t ret, int err) -{ - Nios2CPU *cpu = NIOS2_CPU(cs); - CPUNios2State *env = &cpu->env; - - if (nios2_semi_is_lseek) { - /* - * FIXME: We've already lost the high bits of the lseek - * return value. - */ - nios2_semi_return_u64(env, ret, err); - nios2_semi_is_lseek = 0; - } else { - nios2_semi_return_u32(env, ret, err); - } -} - /* * Read the input value from the argument block; fail the semihosting * call if the memory read fails. @@ -168,6 +155,7 @@ static void nios2_semi_cb(CPUState *cs, uint64_t ret, int err) void do_nios2_semihosting(CPUNios2State *env) { + CPUState *cs = env_cpu(env); int nr; uint32_t args; target_ulong arg0, arg1, arg2, arg3; @@ -188,7 +176,7 @@ void do_nios2_semihosting(CPUNios2State *env) GET_ARG(2); GET_ARG(3); if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_cb, "open,%s,%x,%x", arg0, (int)arg1, + gdb_do_syscall(nios2_semi_u32_cb, "open,%s,%x,%x", arg0, (int)arg1, arg2, arg3); return; } else { @@ -209,7 +197,7 @@ void do_nios2_semihosting(CPUNios2State *env) int fd = arg0; if (fd > 2) { if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_cb, "close,%x", arg0); + gdb_do_syscall(nios2_semi_u32_cb, "close,%x", arg0); return; } else { result = close(fd); @@ -225,7 +213,7 @@ void do_nios2_semihosting(CPUNios2State *env) GET_ARG(2); len = arg2; if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_cb, "read,%x,%x,%x", + gdb_do_syscall(nios2_semi_u32_cb, "read,%x,%x,%x", arg0, arg1, len); return; } else { @@ -245,7 +233,7 @@ void do_nios2_semihosting(CPUNios2State *env) GET_ARG(2); len = arg2; if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_cb, "write,%x,%x,%x", + gdb_do_syscall(nios2_semi_u32_cb, "write,%x,%x,%x", arg0, arg1, len); return; } else { @@ -268,12 +256,11 @@ void do_nios2_semihosting(CPUNios2State *env) GET_ARG(3); off = (uint32_t)arg2 | ((uint64_t)arg1 << 32); if (use_gdb_syscalls()) { - nios2_semi_is_lseek = 1; - gdb_do_syscall(nios2_semi_cb, "lseek,%x,%lx,%x", + gdb_do_syscall(nios2_semi_u64_cb, "lseek,%x,%lx,%x", arg0, off, arg3); } else { off = lseek(arg0, off, arg3); - nios2_semi_return_u64(env, off, errno); + nios2_semi_u64_cb(cs, off, errno); } return; } @@ -283,7 +270,7 @@ void do_nios2_semihosting(CPUNios2State *env) GET_ARG(2); GET_ARG(3); if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_cb, "rename,%s,%s", + gdb_do_syscall(nios2_semi_u32_cb, "rename,%s,%s", arg0, (int)arg1, arg2, (int)arg3); return; } else { @@ -303,7 +290,7 @@ void do_nios2_semihosting(CPUNios2State *env) GET_ARG(0); GET_ARG(1); if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_cb, "unlink,%s", + gdb_do_syscall(nios2_semi_u32_cb, "unlink,%s", arg0, (int)arg1); return; } else { @@ -322,7 +309,7 @@ void do_nios2_semihosting(CPUNios2State *env) GET_ARG(1); GET_ARG(2); if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_cb, "stat,%s,%x", + gdb_do_syscall(nios2_semi_u32_cb, "stat,%s,%x", arg0, (int)arg1, arg2); return; } else { @@ -345,7 +332,7 @@ void do_nios2_semihosting(CPUNios2State *env) GET_ARG(0); GET_ARG(1); if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_cb, "fstat,%x,%x", + gdb_do_syscall(nios2_semi_u32_cb, "fstat,%x,%x", arg0, arg1); return; } else { @@ -361,7 +348,7 @@ void do_nios2_semihosting(CPUNios2State *env) /* Only the tv parameter is used. tz is assumed NULL. */ GET_ARG(0); if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_cb, "gettimeofday,%x,%x", + gdb_do_syscall(nios2_semi_u32_cb, "gettimeofday,%x,%x", arg0, 0); return; } else { @@ -382,7 +369,7 @@ void do_nios2_semihosting(CPUNios2State *env) case HOSTED_ISATTY: GET_ARG(0); if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_cb, "isatty,%x", arg0); + gdb_do_syscall(nios2_semi_u32_cb, "isatty,%x", arg0); return; } else { result = isatty(arg0); @@ -392,7 +379,7 @@ void do_nios2_semihosting(CPUNios2State *env) GET_ARG(0); GET_ARG(1); if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_cb, "system,%s", + gdb_do_syscall(nios2_semi_u32_cb, "system,%s", arg0, (int)arg1); return; } else { @@ -412,5 +399,5 @@ void do_nios2_semihosting(CPUNios2State *env) result = 0; } failed: - nios2_semi_return_u32(env, result, errno); + nios2_semi_u32_cb(cs, result, errno); } From patchwork Wed Jun 8 02:38:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 579805 Delivered-To: patch@linaro.org Received: by 2002:a05:7000:5806:0:0:0:0 with SMTP id j6csp5716237max; Tue, 7 Jun 2022 19:41:54 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyASP9BrjTNQ6/IBxE5p1sXH66XwW3DWye+cg7v4FHMMBUAtZ98IWiUoh3kzpKXsIhgwzWd X-Received: by 2002:a37:a893:0:b0:6a6:78e5:2090 with SMTP id r141-20020a37a893000000b006a678e52090mr20396185qke.623.1654656114229; Tue, 07 Jun 2022 19:41:54 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1654656114; cv=none; d=google.com; s=arc-20160816; b=tJ/7EenFO5c4Ni4Weq3zJGvyE1J2V77KPAEJPysSueK0Woc8P//cRajGTEi9QXu1C3 Ai0bBKfuAvI4N/NZLG43FAml3dS5WQp6XpTO77t8UuW9UgpqBPBCVx+ad62ClmbSB4FI TIBTXLWjViTNAjrP/WPrE4M96WFZTSCL4w3vvodB+5UUXHrpXuzrCpD0faStMaWZILa8 XGGUCLQerROIMMeOCjhTOnPQ0g5N5S7x5Y4pPKYULKrUbvLJC1uKSSUPtJuuPAe/CbKn elj3uUcIy12tHVuuVo4kmPFrWOoR/QDG09uUGvu+CmKyqBGXJanTL4JV2QvBli28f7Yz L+Hw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:to:from :dkim-signature; bh=t0KNVpckDa0g958hmZLpQ+1xaKpj4svZ2fffpgTDKPU=; b=qqNeSBdCvMbuB+Crmbn+omJnbkEY8/pTfYbK6E41fkZupIDIHyvuulgXUfHn3k5/ZI ogqav2KXjSuRnc1UXQJg9RsQNiKwwGULRUJx0Wtxmu7ZkSulQSNZIIxLRxA2ZeMEr4cp r5ErMvq/b8nDJoDwEgNEUDvnfJAT6Wvguv8XFWdi+ifBANnfmDTTUR7mE+0Udw0EPdTY 3ToAQApjStoYSeMHpaOBysdSu89pzlAlvFUCJeIAX0WmtGZIUJumRzy/t87oi4NE6kXW W/T8i6FtOcUAO1fqTYgToOFvHl3JiqyyZ/9okUrZuhviGtNBJWNh0AVA45VVM+rDlvsT dggg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=dwav2UVK; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org. [209.51.188.17]) by mx.google.com with ESMTPS id ke6-20020a056214300600b00467b47f39cdsi10097930qvb.247.2022.06.07.19.41.54 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 07 Jun 2022 19:41:54 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=dwav2UVK; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1]:49538 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nyldp-0003bu-Pv for patch@linaro.org; Tue, 07 Jun 2022 22:41:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41468) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nylaR-0007jT-F3 for qemu-devel@nongnu.org; Tue, 07 Jun 2022 22:38:23 -0400 Received: from mail-pj1-x1030.google.com ([2607:f8b0:4864:20::1030]:35564) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nylaO-0004hH-QH for qemu-devel@nongnu.org; Tue, 07 Jun 2022 22:38:23 -0400 Received: by mail-pj1-x1030.google.com with SMTP id o6-20020a17090a0a0600b001e2c6566046so22596068pjo.0 for ; Tue, 07 Jun 2022 19:38:20 -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=t0KNVpckDa0g958hmZLpQ+1xaKpj4svZ2fffpgTDKPU=; b=dwav2UVKc+yoj6Wh9rkl/GzyZuEewO6gMs5Ep9T2efbkXbmWbpi0JHAsd9Q3gX09Ii 1VcbxIQZ0mw0NEyAeIK1jMrgO+mEyJUv82uDYsvY0oqSSFQMXuaF8L0LUtafqBGuof6R A2slmRk3CKv/So0sCtRs7oY0HF1mZHcnYQ1VzmAM5eqWX+aMSwHH5YrP9yn3Z48i3CUJ 7EGrAse9VS3fg2KQB3MD1ODw8JEXSVCE/r/KbKzfBV6+4yUW/g1Oy6FYYdRT22oFR1B2 BPhoFBmGVgAb41s4iFGY+WMElnKJwTMUezB1UI1ZH1ldRmVOIjHC5vpIkUgwEZY1azLh eOig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=t0KNVpckDa0g958hmZLpQ+1xaKpj4svZ2fffpgTDKPU=; b=Krm6I/poW/cHNRQoiDizDB18Acn51M04UWlur8IcOjmSAF5I2SwH2Vl9z6iJdQvUPB IL+ZsxTB2Gm84eMnA8kI81pOicBcjUjJhAJAKxQ0eq97zpqflTqpzXYZ7JaX20rY+dxY /aBRTl+0iAwJwKZXCWhJWF3ok154LSQc79mnbLjfBCcQmkP4RGcnr3QB5WpJwLbMAh0Z RGC0mkUXClvikBfwoazJ+60rCYVBE3BEWKddbRNBJj6jK8mO0stFGi/WpKvQTbGiWEtb PjI/FI8iquElWDk9uu6lr6DY2WMjTTApaZvX8gMyggtPlUpKnf7N3jm16juDME9k3er1 LQJw== X-Gm-Message-State: AOAM533pzOd+5KkEBxfOdTRrqMHV3PfU+5Th1VMcQ1ygDdGGMSSeRb24 ADGEjmO/282YjcQharcM/DBBqRpAjJIA0w== X-Received: by 2002:a17:903:124b:b0:15e:84d0:ded6 with SMTP id u11-20020a170903124b00b0015e84d0ded6mr31970238plh.141.1654655899469; Tue, 07 Jun 2022 19:38:19 -0700 (PDT) Received: from stoup.. ([2602:ae:1547:e101:c626:2f70:ac99:7c97]) by smtp.gmail.com with ESMTPSA id b19-20020a63d813000000b003f66a518e48sm13607398pgh.86.2022.06.07.19.38.18 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jun 2022 19:38:19 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v4 2/3] target/nios2: Move nios2-semi.c to nios2_softmmu_ss Date: Tue, 7 Jun 2022 19:38:15 -0700 Message-Id: <20220608023816.759426-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220608023816.759426-1-richard.henderson@linaro.org> References: <20220608023816.759426-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::1030; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x1030.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" Semihosting is not enabled for nios2-linux-user. Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daudé --- target/nios2/nios2-semi.c | 5 ----- target/nios2/meson.build | 4 ++-- 2 files changed, 2 insertions(+), 7 deletions(-) diff --git a/target/nios2/nios2-semi.c b/target/nios2/nios2-semi.c index bdf8849689..55061bb2dc 100644 --- a/target/nios2/nios2-semi.c +++ b/target/nios2/nios2-semi.c @@ -22,14 +22,9 @@ */ #include "qemu/osdep.h" - #include "cpu.h" #include "exec/gdbstub.h" -#if defined(CONFIG_USER_ONLY) -#include "qemu.h" -#else #include "semihosting/softmmu-uaccess.h" -#endif #include "qemu/log.h" #define HOSTED_EXIT 0 diff --git a/target/nios2/meson.build b/target/nios2/meson.build index 2bd60ba306..c6e2243cc3 100644 --- a/target/nios2/meson.build +++ b/target/nios2/meson.build @@ -1,7 +1,6 @@ nios2_ss = ss.source_set() nios2_ss.add(files( 'cpu.c', - 'nios2-semi.c', 'op_helper.c', 'translate.c', )) @@ -10,7 +9,8 @@ nios2_softmmu_ss = ss.source_set() nios2_softmmu_ss.add(files( 'helper.c', 'monitor.c', - 'mmu.c' + 'mmu.c', + 'nios2-semi.c', )) target_arch += {'nios2': nios2_ss} From patchwork Wed Jun 8 02:38:16 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 579803 Delivered-To: patch@linaro.org Received: by 2002:a05:7000:5806:0:0:0:0 with SMTP id j6csp5715376max; Tue, 7 Jun 2022 19:39:47 -0700 (PDT) X-Google-Smtp-Source: ABdhPJypCGKnnP0jlL2YkehDXzjttoOGdhcRU3BfXSSTudzxZlQuv904iZ5O2ht0ioCkzxnRDdJp X-Received: by 2002:a05:620a:bc8:b0:6a6:6f3d:3bdc with SMTP id s8-20020a05620a0bc800b006a66f3d3bdcmr21837350qki.729.1654655987697; Tue, 07 Jun 2022 19:39:47 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1654655987; cv=none; d=google.com; s=arc-20160816; b=neg1RNsuhw3hFnDJc8Xe0pr9TNVgraKyaOk7JpqWavsGInCmJvv34oGOOMa3nI7wZ5 GdCqj0wU1vcLRd0q1N1lz4JbC8i2emy/62liPNp8MVnoJLo3HUrBuood87k4ILqyUSi+ MtUTVegKC9t7+K1JZnASwH2q/UhnPrdfzfMQHCsHTwUQ/gaQ3fCSemJkPJWiULGtwobq afkKngxmS6jhD3jzrBmHlJHShORu4ekBX4K9FOHtXQTAcwcld7MU+oznuHKmKyzl4JtI ixTJrcsF9KCaEIcwYa5b8r4q2bPZBhUXHMY1IsNAl/73OfmwI8+dBQH1PkF1BWvYYO17 rvKQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:to:from :dkim-signature; bh=A64dW+WaFyjb845Uk+CMOuiOMbXND0hnQD9JlPmA29k=; b=UuFCopw2kVtccKBsCVOUxA4aoR3C7BADfoLl8EyTN2k5Cr09TGOiCZ35WUCvTDRovP Dlz1QkVteaiL8Lo9mtbQCuAp8m6ZBPV66o2c6aT0EJDg1hvGaCj32Z1fWmnWs23Ht7Bc ZLgOmQfgf1ZulywO+v7CGrOxyia0mzvqdUuYg37+Mwr14CaiVPjgBeg9sVZRPy1C1z8E 87CQwZVf1TKb9kvu5oyVfZZsb1Urun8+T7sOh44ZAsgLTinG1jVQr6m5ADtOqJSAGyAV 4sFWyhdYHISukqWcgeIolZ4BBBsyKR9duvwzpDRoB0cTmxP+L5kIMwtnNJHAo3SViS/a gXrg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=n0yGGemf; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org. [209.51.188.17]) by mx.google.com with ESMTPS id f5-20020ac87f05000000b00304e9e13f91si2290556qtk.279.2022.06.07.19.39.47 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 07 Jun 2022 19:39:47 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=n0yGGemf; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1]:43236 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nylbm-0007m8-85 for patch@linaro.org; Tue, 07 Jun 2022 22:39:46 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41470) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nylaR-0007ja-SR for qemu-devel@nongnu.org; Tue, 07 Jun 2022 22:38:24 -0400 Received: from mail-pj1-x102b.google.com ([2607:f8b0:4864:20::102b]:36613) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nylaP-0004hN-Q6 for qemu-devel@nongnu.org; Tue, 07 Jun 2022 22:38:23 -0400 Received: by mail-pj1-x102b.google.com with SMTP id u12-20020a17090a1d4c00b001df78c7c209so22579419pju.1 for ; Tue, 07 Jun 2022 19:38:21 -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=A64dW+WaFyjb845Uk+CMOuiOMbXND0hnQD9JlPmA29k=; b=n0yGGemfa6lY7iX0SbA+4Lt8CkKeEentA+WeHr1K4/HBKv1f4SOKNDSImu/ahtLQEt tcDUHOlj1+17RpvITIKLB1UNgqNgfslI+r2s93NmxlvMjfOuTZ7OYmtUFyTrW0oVgDA+ RJLh3RkrXCdpPUMm9HeXnFT1oJ0i0YtsEaXVfIq/oomLSM/80OAtOpYjvQ1zKCc2KOFI yJ3Ll7f+J1Mi2Ji20GHiJl8YmXLkFk4xiZgaF5BKb390BjGVzWEJI84wR2Sw0d2otTmR oLIpr2AJNg4o6lBwetYXZyiK24y8GyjHS53eZQ1p6X/C1HmcYZG2TDcy6SNaTpExSDWk cbJw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=A64dW+WaFyjb845Uk+CMOuiOMbXND0hnQD9JlPmA29k=; b=E3Vqgceaf+nKCTcIj3a6dWz7/q5X8yInGR96p0pPcyyspopvr094gPEoPOcSrlpdc7 e1ZZsgmnuN1g3LAHEinE0Y08HdL2E/PrSTRZs2Rgbx/h01jQjiiSHov0aJ5TiVVF642K PnVg57DJGqC6fxOKnTPcCu9uqUzOKNxhHcLlzTndl18GLevaasbbXwG3l4oOeW93OOFx KxBJPqJO3VDzFypjSwQe24Bkf9Xp2FyW+GT+YjDVOdTTAYbu5sE7LrgbiuKGWNujdLAB vkwF/i1KXMTfrQqugn3OPjM4KXhG9B7sP76/YbVqPDe8yD0RTSeoCUFGLuZ3tQNkq2ct AUQQ== X-Gm-Message-State: AOAM533CW1SY87QK90XeHXnUhpCk9p24mmB0akMd2AU31GfK0lerinJD Z6sQrYntwDQ4bfAJ2kLx8l8fCcnumVvBgA== X-Received: by 2002:a17:902:e484:b0:167:5b79:2b61 with SMTP id i4-20020a170902e48400b001675b792b61mr20812337ple.132.1654655900291; Tue, 07 Jun 2022 19:38:20 -0700 (PDT) Received: from stoup.. ([2602:ae:1547:e101:c626:2f70:ac99:7c97]) by smtp.gmail.com with ESMTPSA id b19-20020a63d813000000b003f66a518e48sm13607398pgh.86.2022.06.07.19.38.19 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jun 2022 19:38:19 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v4 3/3] target/nios2: Use semihosting/syscalls.h Date: Tue, 7 Jun 2022 19:38:16 -0700 Message-Id: <20220608023816.759426-4-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220608023816.759426-1-richard.henderson@linaro.org> References: <20220608023816.759426-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::102b; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x102b.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" This separates guest file descriptors from host file descriptors, and utilizes shared infrastructure for integration with gdbstub. Signed-off-by: Richard Henderson --- target/nios2/nios2-semi.c | 321 +++++++++----------------------------- 1 file changed, 77 insertions(+), 244 deletions(-) diff --git a/target/nios2/nios2-semi.c b/target/nios2/nios2-semi.c index 55061bb2dc..f76e8588c5 100644 --- a/target/nios2/nios2-semi.c +++ b/target/nios2/nios2-semi.c @@ -24,6 +24,7 @@ #include "qemu/osdep.h" #include "cpu.h" #include "exec/gdbstub.h" +#include "semihosting/syscalls.h" #include "semihosting/softmmu-uaccess.h" #include "qemu/log.h" @@ -42,65 +43,33 @@ #define HOSTED_ISATTY 12 #define HOSTED_SYSTEM 13 -static int translate_openflags(int flags) +static int host_to_gdb_errno(int err) { - int hf; - - if (flags & GDB_O_WRONLY) { - hf = O_WRONLY; - } else if (flags & GDB_O_RDWR) { - hf = O_RDWR; - } else { - hf = O_RDONLY; +#define E(X) case E##X: return GDB_E##X + switch (err) { + E(PERM); + E(NOENT); + E(INTR); + E(BADF); + E(ACCES); + E(FAULT); + E(BUSY); + E(EXIST); + E(NODEV); + E(NOTDIR); + E(ISDIR); + E(INVAL); + E(NFILE); + E(MFILE); + E(FBIG); + E(NOSPC); + E(SPIPE); + E(ROFS); + E(NAMETOOLONG); + default: + return GDB_EUNKNOWN; } - - if (flags & GDB_O_APPEND) { - hf |= O_APPEND; - } - if (flags & GDB_O_CREAT) { - hf |= O_CREAT; - } - if (flags & GDB_O_TRUNC) { - hf |= O_TRUNC; - } - if (flags & GDB_O_EXCL) { - hf |= O_EXCL; - } - - return hf; -} - -static bool translate_stat(CPUNios2State *env, target_ulong addr, - struct stat *s) -{ - struct gdb_stat *p; - - p = lock_user(VERIFY_WRITE, addr, sizeof(struct gdb_stat), 0); - - if (!p) { - return false; - } - p->gdb_st_dev = cpu_to_be32(s->st_dev); - p->gdb_st_ino = cpu_to_be32(s->st_ino); - p->gdb_st_mode = cpu_to_be32(s->st_mode); - p->gdb_st_nlink = cpu_to_be32(s->st_nlink); - p->gdb_st_uid = cpu_to_be32(s->st_uid); - p->gdb_st_gid = cpu_to_be32(s->st_gid); - p->gdb_st_rdev = cpu_to_be32(s->st_rdev); - p->gdb_st_size = cpu_to_be64(s->st_size); -#ifdef _WIN32 - /* Windows stat is missing some fields. */ - p->gdb_st_blksize = 0; - p->gdb_st_blocks = 0; -#else - p->gdb_st_blksize = cpu_to_be64(s->st_blksize); - p->gdb_st_blocks = cpu_to_be64(s->st_blocks); -#endif - p->gdb_st_atime = cpu_to_be32(s->st_atime); - p->gdb_st_mtime = cpu_to_be32(s->st_mtime); - p->gdb_st_ctime = cpu_to_be32(s->st_ctime); - unlock_user(p, addr, sizeof(struct gdb_stat)); - return true; +#undef E } static void nios2_semi_u32_cb(CPUState *cs, uint64_t ret, int err) @@ -110,7 +79,7 @@ static void nios2_semi_u32_cb(CPUState *cs, uint64_t ret, int err) target_ulong args = env->regs[R_ARG1]; if (put_user_u32(ret, args) || - put_user_u32(err, args + 4)) { + put_user_u32(host_to_gdb_errno(err), args + 4)) { /* * The nios2 semihosting ABI does not provide any way to report this * error to the guest, so the best we can do is log it in qemu. @@ -129,7 +98,7 @@ static void nios2_semi_u64_cb(CPUState *cs, uint64_t ret, int err) if (put_user_u32(ret >> 32, args) || put_user_u32(ret, args + 4) || - put_user_u32(err, args + 8)) { + put_user_u32(host_to_gdb_errno(err), args + 8)) { /* No way to report this via nios2 semihosting ABI; just log it */ qemu_log_mask(LOG_GUEST_ERROR, "nios2-semihosting: return value " "discarded because argument block not writable\n"); @@ -142,22 +111,22 @@ static void nios2_semi_u64_cb(CPUState *cs, uint64_t ret, int err) */ #define GET_ARG(n) do { \ if (get_user_ual(arg ## n, args + (n) * 4)) { \ - result = -1; \ - errno = EFAULT; \ goto failed; \ } \ } while (0) +#define GET_ARG64(n) do { \ + if (get_user_ual(arg ## n, args + (n) * 4)) { \ + goto failed64; \ + } \ +} while (0) + void do_nios2_semihosting(CPUNios2State *env) { CPUState *cs = env_cpu(env); int nr; uint32_t args; target_ulong arg0, arg1, arg2, arg3; - void *p; - void *q; - uint32_t len; - uint32_t result; nr = env->regs[R_ARG0]; args = env->regs[R_ARG1]; @@ -165,234 +134,98 @@ void do_nios2_semihosting(CPUNios2State *env) case HOSTED_EXIT: gdb_exit(env->regs[R_ARG0]); exit(env->regs[R_ARG0]); + case HOSTED_OPEN: GET_ARG(0); GET_ARG(1); GET_ARG(2); GET_ARG(3); - if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_u32_cb, "open,%s,%x,%x", arg0, (int)arg1, - arg2, arg3); - return; - } else { - p = lock_user_string(arg0); - if (!p) { - result = -1; - errno = EFAULT; - } else { - result = open(p, translate_openflags(arg2), arg3); - unlock_user(p, arg0, 0); - } - } + semihost_sys_open(cs, nios2_semi_u32_cb, arg0, arg1, arg2, arg3); break; + case HOSTED_CLOSE: - { - /* Ignore attempts to close stdin/out/err. */ - GET_ARG(0); - int fd = arg0; - if (fd > 2) { - if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_u32_cb, "close,%x", arg0); - return; - } else { - result = close(fd); - } - } else { - result = 0; - } - break; - } + GET_ARG(0); + semihost_sys_close(cs, nios2_semi_u32_cb, arg0); + break; + case HOSTED_READ: GET_ARG(0); GET_ARG(1); GET_ARG(2); - len = arg2; - if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_u32_cb, "read,%x,%x,%x", - arg0, arg1, len); - return; - } else { - p = lock_user(VERIFY_WRITE, arg1, len, 0); - if (!p) { - result = -1; - errno = EFAULT; - } else { - result = read(arg0, p, len); - unlock_user(p, arg1, len); - } - } + semihost_sys_read(cs, nios2_semi_u32_cb, arg0, arg1, arg2); break; + case HOSTED_WRITE: GET_ARG(0); GET_ARG(1); GET_ARG(2); - len = arg2; - if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_u32_cb, "write,%x,%x,%x", - arg0, arg1, len); - return; - } else { - p = lock_user(VERIFY_READ, arg1, len, 1); - if (!p) { - result = -1; - errno = EFAULT; - } else { - result = write(arg0, p, len); - unlock_user(p, arg0, 0); - } - } + semihost_sys_write(cs, nios2_semi_u32_cb, arg0, arg1, arg2); break; + case HOSTED_LSEEK: - { - uint64_t off; - GET_ARG(0); - GET_ARG(1); - GET_ARG(2); - GET_ARG(3); - off = (uint32_t)arg2 | ((uint64_t)arg1 << 32); - if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_u64_cb, "lseek,%x,%lx,%x", - arg0, off, arg3); - } else { - off = lseek(arg0, off, arg3); - nios2_semi_u64_cb(cs, off, errno); - } - return; - } + GET_ARG64(0); + GET_ARG64(1); + GET_ARG64(2); + GET_ARG64(3); + semihost_sys_lseek(cs, nios2_semi_u64_cb, arg0, + deposit64(arg2, arg1, 32, 32), arg3); + break; + case HOSTED_RENAME: GET_ARG(0); GET_ARG(1); GET_ARG(2); GET_ARG(3); - if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_u32_cb, "rename,%s,%s", - arg0, (int)arg1, arg2, (int)arg3); - return; - } else { - p = lock_user_string(arg0); - q = lock_user_string(arg2); - if (!p || !q) { - result = -1; - errno = EFAULT; - } else { - result = rename(p, q); - } - unlock_user(p, arg0, 0); - unlock_user(q, arg2, 0); - } + semihost_sys_rename(cs, nios2_semi_u32_cb, arg0, arg1, arg2, arg3); break; + case HOSTED_UNLINK: GET_ARG(0); GET_ARG(1); - if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_u32_cb, "unlink,%s", - arg0, (int)arg1); - return; - } else { - p = lock_user_string(arg0); - if (!p) { - result = -1; - errno = EFAULT; - } else { - result = unlink(p); - unlock_user(p, arg0, 0); - } - } + semihost_sys_remove(cs, nios2_semi_u32_cb, arg0, arg1); break; + case HOSTED_STAT: GET_ARG(0); GET_ARG(1); GET_ARG(2); - if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_u32_cb, "stat,%s,%x", - arg0, (int)arg1, arg2); - return; - } else { - struct stat s; - p = lock_user_string(arg0); - if (!p) { - result = -1; - errno = EFAULT; - } else { - result = stat(p, &s); - unlock_user(p, arg0, 0); - } - if (result == 0 && !translate_stat(env, arg2, &s)) { - result = -1; - errno = EFAULT; - } - } + semihost_sys_stat(cs, nios2_semi_u32_cb, arg0, arg1, arg2); break; + case HOSTED_FSTAT: GET_ARG(0); GET_ARG(1); - if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_u32_cb, "fstat,%x,%x", - arg0, arg1); - return; - } else { - struct stat s; - result = fstat(arg0, &s); - if (result == 0 && !translate_stat(env, arg1, &s)) { - result = -1; - errno = EFAULT; - } - } + semihost_sys_fstat(cs, nios2_semi_u32_cb, arg0, arg1); break; + case HOSTED_GETTIMEOFDAY: - /* Only the tv parameter is used. tz is assumed NULL. */ GET_ARG(0); - if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_u32_cb, "gettimeofday,%x,%x", - arg0, 0); - return; - } else { - struct gdb_timeval *p; - int64_t rt = g_get_real_time(); - p = lock_user(VERIFY_WRITE, arg0, sizeof(struct gdb_timeval), 0); - if (!p) { - result = -1; - errno = EFAULT; - } else { - result = 0; - p->tv_sec = cpu_to_be32(rt / G_USEC_PER_SEC); - p->tv_usec = cpu_to_be64(rt % G_USEC_PER_SEC); - unlock_user(p, arg0, sizeof(struct gdb_timeval)); - } - } + GET_ARG(1); + semihost_sys_gettimeofday(cs, nios2_semi_u32_cb, arg0, arg1); break; + case HOSTED_ISATTY: GET_ARG(0); - if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_u32_cb, "isatty,%x", arg0); - return; - } else { - result = isatty(arg0); - } + semihost_sys_isatty(cs, nios2_semi_u32_cb, arg0); break; + case HOSTED_SYSTEM: GET_ARG(0); GET_ARG(1); - if (use_gdb_syscalls()) { - gdb_do_syscall(nios2_semi_u32_cb, "system,%s", - arg0, (int)arg1); - return; - } else { - p = lock_user_string(arg0); - if (!p) { - result = -1; - errno = EFAULT; - } else { - result = system(p); - unlock_user(p, arg0, 0); - } - } + semihost_sys_system(cs, nios2_semi_u32_cb, arg0, arg1); break; + default: qemu_log_mask(LOG_GUEST_ERROR, "nios2-semihosting: unsupported " "semihosting syscall %d\n", nr); - result = 0; + nios2_semi_u32_cb(cs, -1, ENOSYS); + break; + + failed: + nios2_semi_u32_cb(cs, -1, EFAULT); + break; + failed64: + nios2_semi_u64_cb(cs, -1, EFAULT); + break; } -failed: - nios2_semi_u32_cb(cs, result, errno); }