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([71.212.142.129]) by smtp.gmail.com with ESMTPSA id p11-20020a17090ad30b00b001cd4989fed3sm1712383pju.31.2022.05.03.12.49.15 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 May 2022 12:49:15 -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=/Tnt2IWUsnzN1DncvQNw1ounPVnk2pgfg+nnvDvrCdE=; b=LUyAqobHP30Lh8OtIA+55QMwrRw5jqnYhqmQOvEGqYMj1i4ID6zpUKSKuc1N6tXY66 dmmVomoGcDXL9Npj6XHnHQW5topaox+SA9JamHHnvn9FMKDIWnnTeAnW0J8ctgQt7FBV 1ly+/q4fbnmmxaZW0bG5QaNZwvhWQrQ0Sg1/g1jgNfnciWqZr6yVTO2lMDzMfnOJgS/H wuyYFi4vOQyuxZGmKwt26tKwvJyoZGtUiKGYGhKw6cGnGY5ki9JFoXkGgJck/oQ/JLMl Fo4j8EslpnIzXgLhqvaIis7qncCrOXn3kT1SagsrVwBYwc7X9GgbNt3sNbbgwoKP0tCS p4gg== 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=/Tnt2IWUsnzN1DncvQNw1ounPVnk2pgfg+nnvDvrCdE=; b=oT+o+wQXT7ZfP+QIeSJrRRFTldLt5pVVECGaGlSw3EN/35LedLD7C7Yl40mJfOcpoH HzWgOBCY+LPoR+eWE1XSRAKeE66JW7hPzRyYRf7IBbNf8ebSMQ6QtEB394hcmh8K/Yjh hprzDgqgah2C+85TaEJZg98Fy7d1gXxIdQ24laAufPF8F88lkgAaJn/vHhYVTYvp2QWM FnI1H5mPO7kGwOX5MvexO29VEX/TdWFKHZsB73KuM1WmbFpRn8qNBcJMwuvRqIguFTyo PuXjs7LQlPM3PidH1T2JfPoS2YBfCRUZISGNfcsZyGCvDRDPRaDYCPl0rGm0CGlTu+rU NZGw== X-Gm-Message-State: AOAM533Q2umBvJ3l/G2NaII3SqYv3RjNzhDw5NXeWq3Z934eA8G98FLu CpxMfBtuDlKW1MPk9t8SPYAZBCtfaet+ww== X-Google-Smtp-Source: ABdhPJy90ZlHT+oSOPOlWdKxwnNoy6yPcP7aPhu5M0yDYcf5tdRlk1HnYAp/y88ppyX+zqtJUMzMbA== X-Received: by 2002:a63:85c8:0:b0:3ab:24cf:e625 with SMTP id u191-20020a6385c8000000b003ab24cfe625mr15309386pgd.212.1651607356343; Tue, 03 May 2022 12:49:16 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v2 31/74] semihosting: Split out semihost_sys_system Date: Tue, 3 May 2022 12:48:00 -0700 Message-Id: <20220503194843.1379101-32-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220503194843.1379101-1-richard.henderson@linaro.org> References: <20220503194843.1379101-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::52f; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x52f.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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1651608562733100001 Content-Type: text/plain; charset="utf-8" Split out the non-ARM specific portions of SYS_SYSTEM to a reusable function. Signed-off-by: Richard Henderson --- include/semihosting/syscalls.h | 3 +++ semihosting/arm-compat-semi.c | 12 +--------- semihosting/syscalls.c | 40 ++++++++++++++++++++++++++++++++++ 3 files changed, 44 insertions(+), 11 deletions(-) diff --git a/include/semihosting/syscalls.h b/include/semihosting/syscalls.h index 21430aa0ef..c9f9e66be1 100644 --- a/include/semihosting/syscalls.h +++ b/include/semihosting/syscalls.h @@ -56,4 +56,7 @@ void semihost_sys_rename(CPUState *cs, gdb_syscall_comple= te_cb complete, target_ulong oname, target_ulong oname_len, target_ulong nname, target_ulong nname_len); =20 +void semihost_sys_system(CPUState *cs, gdb_syscall_complete_cb complete, + target_ulong cmd, target_ulong cmd_len); + #endif /* SEMIHOSTING_SYSCALLS_H */ diff --git a/semihosting/arm-compat-semi.c b/semihosting/arm-compat-semi.c index f554f4761f..a7520d6f41 100644 --- a/semihosting/arm-compat-semi.c +++ b/semihosting/arm-compat-semi.c @@ -496,17 +496,7 @@ void do_common_semihosting(CPUState *cs) case TARGET_SYS_SYSTEM: GET_ARG(0); GET_ARG(1); - if (use_gdb_syscalls()) { - gdb_do_syscall(common_semi_cb, "system,%s", arg0, (int)arg1 + = 1); - break; - } - s =3D lock_user_string(arg0); - if (!s) { - goto do_fault; - } - ret =3D system(s); - unlock_user(s, arg0, 0); - common_semi_cb(cs, ret, ret =3D=3D -1 ? errno : 0); + semihost_sys_system(cs, common_semi_cb, arg0, arg1 + 1); break; =20 case TARGET_SYS_ERRNO: diff --git a/semihosting/syscalls.c b/semihosting/syscalls.c index 96d823e8b3..b6c395af22 100644 --- a/semihosting/syscalls.c +++ b/semihosting/syscalls.c @@ -195,6 +195,18 @@ static void gdb_rename(CPUState *cs, gdb_syscall_compl= ete_cb complete, gdb_do_syscall(complete, "rename,%s,%s", oname, olen, nname, nlen); } =20 +static void gdb_system(CPUState *cs, gdb_syscall_complete_cb complete, + target_ulong cmd, target_ulong cmd_len) +{ + int len =3D validate_strlen(cs, cmd, cmd_len); + if (len < 0) { + complete(cs, -1, -len); + return; + } + + gdb_do_syscall(complete, "system,%s", cmd, len); +} + /* * Host semihosting syscall implementations. */ @@ -383,6 +395,24 @@ static void host_rename(CPUState *cs, gdb_syscall_comp= lete_cb complete, unlock_user(nstr, nname, 0); } =20 +static void host_system(CPUState *cs, gdb_syscall_complete_cb complete, + target_ulong cmd, target_ulong cmd_len) +{ + CPUArchState *env G_GNUC_UNUSED =3D cs->env_ptr; + char *p; + int ret; + + ret =3D validate_lock_user_string(&p, cs, cmd, cmd_len); + if (ret < 0) { + complete(cs, -1, -ret); + return; + } + + ret =3D system(p); + complete(cs, ret, ret =3D=3D -1 ? errno_for_gdb() : 0); + unlock_user(p, cmd, 0); +} + /* * Static file semihosting syscall implementations. */ @@ -649,3 +679,13 @@ void semihost_sys_rename(CPUState *cs, gdb_syscall_com= plete_cb complete, host_rename(cs, complete, oname, oname_len, nname, nname_len); } } + +void semihost_sys_system(CPUState *cs, gdb_syscall_complete_cb complete, + target_ulong cmd, target_ulong cmd_len) +{ + if (use_gdb_syscalls()) { + gdb_system(cs, complete, cmd, cmd_len); + } else { + host_system(cs, complete, cmd, cmd_len); + } +} --=20 2.34.1