From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pj1-x1036.google.com (mail-pj1-x1036.google.com [IPv6:2607:f8b0:4864:20::1036]) by sourceware.org (Postfix) with ESMTPS id 0B8E5388A404 for ; Tue, 13 Apr 2021 09:33:16 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 0B8E5388A404 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=sifive.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=kito.cheng@sifive.com Received: by mail-pj1-x1036.google.com with SMTP id u14-20020a17090a1f0eb029014e38011b09so3858074pja.5 for ; Tue, 13 Apr 2021 02:33:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=7e3WIDCiHLaa1WuBX1/cGQ8dg9SSccgzA7zhUMeZQ3M=; b=XIJCgpwLcH1M4rOrA5igW8eUMDssslkhLZA2o/ewYGln9ZTZI22yV6QWB7Cyv/waXz XeUTicTNL6VI0dvoYfU387mPv72HwszFkDSvEF44pPoJayyWO5Q650OSsz9ImM9RJ59K FuisaybSVXBqC+twGvZY4pM5x36fTqSxeCoHjIiBDY/w60x1BOqzIVQlsW2eEYYDA0fx 1daqPPhjL+kQTboifprZew+Nh5n0tbAcwrPPgQzkiBhqMti64hKHl3KGpDscrJFNZdsY ADakzw09F0QK6XJnSd3B5tFKqjx5gIKpUxgADCQDO+5TOpY3WYdcH5ltwX/nzUfre+Js XKZg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=7e3WIDCiHLaa1WuBX1/cGQ8dg9SSccgzA7zhUMeZQ3M=; b=W5mQuKhdK7VUkqYmxjVRRBQotC7SbX3cGCnTtAKKJXF+IbXOXbv5LMRx0yu9ePYoQ0 5xeX8AQ6cxdb0nJAa+sjeVQopqlsDUTnUL942jmFEATon4xDNXeCMBlH0/SBMQJ4qyGH xnMKWZpzpVn8zswGjkEJBTNqZJm+j5Tclg4GQw1JQsbrLGdAtyuoYatPNHJcrHgdFT7n zgFFYDYLHZL3keOXMSsA+QmCEvUe6fOhNIcLABuRrWIAdL8loEehmb7m3sFfr6rQBjer VBiNkdkUDDEsa3QCCRbpQXXpItVSjUpw9lD4jZCoR1+EVSUc7zKuUHCI4R76w5HkS+HN ytPg== X-Gm-Message-State: AOAM533BapkUJtVWhJL/ht7WVOK2OB0tAecSf76OOIc6oDTzToM3TlBj BN71YusT/Mff6XmI5PNWK5HeOd8+4ky6kA== X-Google-Smtp-Source: ABdhPJzl69e6J6EnXqOE+uU5yaTwuUujAQvRmN75Pt2w3b0xtjYd5osmeZ8trS+8/9bH0NjgC0P67Q== X-Received: by 2002:a17:902:6b81:b029:ea:dcc5:b841 with SMTP id p1-20020a1709026b81b02900eadcc5b841mr13265157plk.29.1618306394739; Tue, 13 Apr 2021 02:33:14 -0700 (PDT) Received: from hsinchu02.internal.sifive.com (114-34-229-221.HINET-IP.hinet.net. [114.34.229.221]) by smtp.gmail.com with ESMTPSA id l18sm1722395pjq.33.2021.04.13.02.33.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Apr 2021 02:33:14 -0700 (PDT) From: Kito Cheng To: newlib@sourceware.org, kito.cheng@gmail.com Cc: Kito Cheng Subject: [PATCH] RISC-V: Using SYS_clock_gettime64 for rv32 libgloss. Date: Tue, 13 Apr 2021 17:33:03 +0800 Message-Id: <20210413093303.96153-1-kito.cheng@sifive.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-14.4 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: newlib@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Newlib mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 13 Apr 2021 09:33:19 -0000 - RISC-V 32 bits linux/glibc didn't provide gettimeofday anymore after upstream, because RV32 didn't have backward compatible issue, so RV32 only support 64 bits time related system call. - So using clock_gettime64 call instead for rv32 libgloss. --- libgloss/riscv/machine/syscall.h | 1 + libgloss/riscv/sys_gettimeofday.c | 21 +++++++++++++++++++++ 2 files changed, 22 insertions(+) diff --git a/libgloss/riscv/machine/syscall.h b/libgloss/riscv/machine/syscall.h index 88b9fdfda..1ac8b1a4b 100644 --- a/libgloss/riscv/machine/syscall.h +++ b/libgloss/riscv/machine/syscall.h @@ -44,6 +44,7 @@ #define SYS_munmap 215 #define SYS_mremap 216 #define SYS_mmap 222 +#define SYS_clock_gettime64 403 #define SYS_open 1024 #define SYS_link 1025 #define SYS_unlink 1026 diff --git a/libgloss/riscv/sys_gettimeofday.c b/libgloss/riscv/sys_gettimeofday.c index daa14e475..81bea8e55 100644 --- a/libgloss/riscv/sys_gettimeofday.c +++ b/libgloss/riscv/sys_gettimeofday.c @@ -1,10 +1,31 @@ #include #include +#include #include "internal_syscall.h" /* Get the current time. Only relatively correct. */ int _gettimeofday(struct timeval *tp, void *tzp) { +#if __riscv_xlen == 32 + struct __timespec64 + { + int64_t tv_sec; /* Seconds */ +# if BYTE_ORDER == BIG_ENDIAN + int32_t __padding; /* Padding */ + int32_t tv_nsec; /* Nanoseconds */ +# else + int32_t tv_nsec; /* Nanoseconds */ + int32_t __padding; /* Padding */ +# endif + }; + struct __timespec64 ts64; + int rv; + rv = syscall_errno (SYS_clock_gettime64, 2, 0, (long)&ts64, 0, 0, 0, 0); + tp->tv_sec = ts64.tv_sec; + tp->tv_usec = ts64.tv_nsec * 1000; + return rv; +#else return syscall_errno (SYS_gettimeofday, 1, tp, 0, 0, 0, 0, 0); +#endif } -- 2.31.1