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([71.212.142.129]) by smtp.gmail.com with ESMTPSA id h8-20020a654808000000b003f9d1c020cbsm306369pgs.51.2022.05.20.17.04.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 May 2022 17:04:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Bust6mppvMbdx6gzfuXbL5YS3wUCsmb4mW+3d0C8Dpw=; b=tnBWdMIOBpml/OZsk2CnHbv0WVbl+fOG+e4KlC1smReheAPN1bL1GPT11jmhnFCs3M IvDZQCoLIFW+LX6bGIbhY2AnzR2vpBJL5M8aLT5MbbRQquvHGDBGL9LEJEAJ+X8pXLK0 XkQUwFtcCa+Ppc8jgln5J3oEojolWSwyy2ETAo+GaMp+ph0OJCd14gewruKN4b0+wUVX Ztg2uywNBg5LrC+qV/yQ8WjMcBYgcVx6w+psxEMYZSHD34hQM3odNjyCQR5B74qnrLFR XYePugXlmj+EggMfC4t4w46SjkKJ6znl09DRykPIsjTWkHqsGVG6tMpQr0EBk5+bfAnJ afnQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Bust6mppvMbdx6gzfuXbL5YS3wUCsmb4mW+3d0C8Dpw=; b=noVwNCQw1Dz1qg4sg087hCfluQOnJEg/Dr3D7xhZsBTQBE64ymc2bfxdzqvYPXQz3t l2LDG1ukKmOVRRpnj8/AYzSF2snYmHXp6sPE7ftVs1eUgFZQUq7u3QNSHAUn/o+l+hrU /qLEBZkhxzxaypVE2s6FLMlpIWEk9dNiU6msessaTLtwvzgOLQ1ywEo5NlyexQs1XpFl Y7WgesqGAoCZVqSwHafSCisUzSJETTC42C7/6f0pRWog2dDkMVLXToTcVR1Ea+ZB68ts xZncAK+0gGpwVKcK6McODb12/bmtxe7M87xF8aoFXehF7uuzihqDEwagOLbfMHebD+WQ aprQ== X-Gm-Message-State: AOAM531pEg1o362Nyf0wjShrtLK7WJo2ff6WFt9FsU7zbPjjcNbDvymk fDlhT4f6cd0Dln9DkCN+srZjgbt2rCO1NA== X-Google-Smtp-Source: ABdhPJwmjilcanHDyxerhqbVQQac9R8yWNlveoCEPrcNUZwVHHYqHrWVCb66MwPxmkGLS1rmQKcJOw== X-Received: by 2002:a17:902:8c92:b0:161:e861:861f with SMTP id t18-20020a1709028c9200b00161e861861fmr7965542plo.33.1653091480761; Fri, 20 May 2022 17:04:40 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org, alex.bennee@linaro.org Subject: [PATCH v3 35/49] semihosting: Create semihost_sys_gettimeofday Date: Fri, 20 May 2022 17:03:46 -0700 Message-Id: <20220521000400.454525-36-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220521000400.454525-1-richard.henderson@linaro.org> References: <20220521000400.454525-1-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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::631; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x631.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+importer2=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1653094798976100001 Content-Type: text/plain; charset="utf-8" This syscall will be used by m68k and nios2 semihosting. Signed-off-by: Richard Henderson --- include/semihosting/syscalls.h | 3 +++ semihosting/syscalls.c | 42 ++++++++++++++++++++++++++++++++++ 2 files changed, 45 insertions(+) diff --git a/include/semihosting/syscalls.h b/include/semihosting/syscalls.h index ecc97751a9..347200cb9f 100644 --- a/include/semihosting/syscalls.h +++ b/include/semihosting/syscalls.h @@ -66,4 +66,7 @@ void semihost_sys_rename(CPUState *cs, gdb_syscall_comple= te_cb complete, void semihost_sys_system(CPUState *cs, gdb_syscall_complete_cb complete, target_ulong cmd, target_ulong cmd_len); =20 +void semihost_sys_gettimeofday(CPUState *cs, gdb_syscall_complete_cb compl= ete, + target_ulong tv_addr, target_ulong tz_addr); + #endif /* SEMIHOSTING_SYSCALLS_H */ diff --git a/semihosting/syscalls.c b/semihosting/syscalls.c index 7bc2640512..269f750d98 100644 --- a/semihosting/syscalls.c +++ b/semihosting/syscalls.c @@ -266,6 +266,12 @@ static void gdb_system(CPUState *cs, gdb_syscall_compl= ete_cb complete, gdb_do_syscall(complete, "system,%s", cmd, len); } =20 +static void gdb_gettimeofday(CPUState *cs, gdb_syscall_complete_cb complet= e, + target_ulong tv_addr, target_ulong tz_addr) +{ + gdb_do_syscall(complete, "gettimeofday,%x,%x", tv_addr, tz_addr); +} + /* * Host semihosting syscall implementations. */ @@ -517,6 +523,32 @@ static void host_system(CPUState *cs, gdb_syscall_comp= lete_cb complete, unlock_user(p, cmd, 0); } =20 +static void host_gettimeofday(CPUState *cs, gdb_syscall_complete_cb comple= te, + target_ulong tv_addr, target_ulong tz_addr) +{ + CPUArchState *env G_GNUC_UNUSED =3D cs->env_ptr; + struct gdb_timeval *p; + int64_t rt; + + /* GDB fails on non-null TZ, so be consistent. */ + if (tz_addr !=3D 0) { + complete(cs, -1, GDB_EINVAL); + return; + } + + p =3D lock_user(VERIFY_WRITE, tv_addr, sizeof(struct gdb_timeval), 0); + if (!p) { + complete(cs, -1, GDB_EFAULT); + return; + } + + /* TODO: Like stat, gdb always produces big-endian results; match it. = */ + rt =3D g_get_real_time(); + p->tv_sec =3D cpu_to_be32(rt / G_USEC_PER_SEC); + p->tv_usec =3D cpu_to_be64(rt % G_USEC_PER_SEC); + unlock_user(p, tv_addr, sizeof(struct gdb_timeval)); +} + /* * Static file semihosting syscall implementations. */ @@ -826,3 +858,13 @@ void semihost_sys_system(CPUState *cs, gdb_syscall_com= plete_cb complete, host_system(cs, complete, cmd, cmd_len); } } + +void semihost_sys_gettimeofday(CPUState *cs, gdb_syscall_complete_cb compl= ete, + target_ulong tv_addr, target_ulong tz_addr) +{ + if (use_gdb_syscalls()) { + gdb_gettimeofday(cs, complete, tv_addr, tz_addr); + } else { + host_gettimeofday(cs, complete, tv_addr, tz_addr); + } +} --=20 2.34.1