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GET /api/patches/1600609/?format=api
{ "id": 1600609, "url": "http://patchwork.ozlabs.org/api/patches/1600609/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20220303204400.2787389-10-sean.anderson@seco.com/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20220303204400.2787389-10-sean.anderson@seco.com>", "list_archive_url": null, "date": "2022-03-03T20:43:52", "name": "[09/17] arm: smh: Add some file manipulation commands", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "5b7134d96ca854245da6872a6ee0e297d8898468", "submitter": { "id": 80860, "url": "http://patchwork.ozlabs.org/api/people/80860/?format=api", "name": "Sean Anderson", "email": "sean.anderson@seco.com" }, "delegate": { "id": 3651, "url": "http://patchwork.ozlabs.org/api/users/3651/?format=api", "username": "trini", "first_name": "Tom", "last_name": "Rini", "email": "trini@ti.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20220303204400.2787389-10-sean.anderson@seco.com/mbox/", "series": [ { "id": 288836, "url": "http://patchwork.ozlabs.org/api/series/288836/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=288836", "date": "2022-03-03T20:43:44", "name": "arm: semihosting: Cleanups and new features", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/288836/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1600609/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1600609/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@bilbo.ozlabs.org", "Authentication-Results": [ "bilbo.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=seco.com header.i=@seco.com header.a=rsa-sha256\n header.s=selector1 header.b=shmEvfDM;\n\tdkim-atps=neutral", "ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=85.214.62.61; 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mx.microsoft.com 1; spf=pass\n smtp.mailfrom=seco.com; dmarc=pass action=none header.from=seco.com;\n dkim=pass header.d=seco.com; arc=none", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=seco.com; s=selector1;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=cw2YYdPY2te+vtKnQtt0KN9oDzng/7i8BKfAfFGeTuU=;\n b=shmEvfDMKm0CmIdQbijmWqCSi0N2V6sRzmIDc7dPkx8H2jeO1frSNBrgmExt6S0KefaVYXGaH7KKVFW+0pYHGZFTDLXIwCYE5uxr4CFQf99YG3zvWIbMux+tDpRXx6t17/Lzaz5zjZpuPniIEPMBbZp5GZiHKCRd4D2OXdh342pPr8bDVmHjShDhZzkR1Sx+/vCpp6xcQ8hRBVlnm/EHN1EnBH2lJ0YU8FAQ/4FXjML+b8Ftp9TMP1vwI4DOEmLM+o4qIW6kDjUiFmj7BTOrqtCXkSdGxNoHC72aWK7R7G2nxVW0S2XAyDvzuJGsS0VnZ/3SaSJAF7PBQn5Sz3xglw==", "From": "Sean Anderson <sean.anderson@seco.com>", "To": "Simon Glass <sjg@chromium.org>", "Cc": "Linus Walleij <linus.walleij@linaro.org>, Tom Rini <trini@konsulko.com>,\n u-boot@lists.denx.de, Sean Anderson <sean.anderson@seco.com>", "Subject": "[PATCH 09/17] arm: smh: Add some file manipulation commands", "Date": "Thu, 3 Mar 2022 15:43:52 -0500", "Message-Id": "<20220303204400.2787389-10-sean.anderson@seco.com>", "X-Mailer": "git-send-email 2.25.1", "In-Reply-To": "<20220303204400.2787389-1-sean.anderson@seco.com>", "References": "<20220303204400.2787389-1-sean.anderson@seco.com>", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-ClientProxiedBy": "MN2PR16CA0013.namprd16.prod.outlook.com\n (2603:10b6:208:134::26) To DB7PR03MB4523.eurprd03.prod.outlook.com\n (2603:10a6:10:19::27)", "MIME-Version": "1.0", "X-MS-PublicTrafficType": "Email", "X-MS-Office365-Filtering-Correlation-Id": "c74c2de4-0e6e-46a7-a678-08d9fd569c8b", "X-MS-TrafficTypeDiagnostic": "AM6PR03MB3573:EE_", "X-Microsoft-Antispam-PRVS": "\n <AM6PR03MB357312C019A04C83D7FC6B7496049@AM6PR03MB3573.eurprd03.prod.outlook.com>", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;", "X-Microsoft-Antispam-Message-Info": "\n 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", "X-Forefront-Antispam-Report": "CIP:255.255.255.255; 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Add the appropriate helper functions.\n\nSigned-off-by: Sean Anderson <sean.anderson@seco.com>\n---\n\n arch/arm/lib/semihosting.c | 67 +++++++++++++++++++++++++++++++-------\n include/semihosting.h | 20 ++++++++++++\n 2 files changed, 76 insertions(+), 11 deletions(-)", "diff": "diff --git a/arch/arm/lib/semihosting.c b/arch/arm/lib/semihosting.c\nindex 2943f7b82f..d08003cef1 100644\n--- a/arch/arm/lib/semihosting.c\n+++ b/arch/arm/lib/semihosting.c\n@@ -1,15 +1,13 @@\n // SPDX-License-Identifier: GPL-2.0+\n /*\n+ * Copyright (C) 2022 Sean Anderson <sean.anderson@seco.com>\n * Copyright 2014 Broadcom Corporation\n */\n \n /*\n- * Minimal semihosting implementation for reading files into memory. If more\n- * features like writing files or console output are required they can be\n- * added later. This code has been tested on arm64/aarch64 fastmodel only.\n- * An untested placeholder exists for armv7 architectures, but since they\n- * are commonly available in silicon now, fastmodel usage makes less sense\n- * for them.\n+ * This code has been tested on arm64/aarch64 fastmodel only. An untested\n+ * placeholder exists for armv7 architectures, but since they are commonly\n+ * available in silicon now, fastmodel usage makes less sense for them.\n */\n #include <common.h>\n #include <command.h>\n@@ -19,7 +17,9 @@\n \n #define SYSOPEN\t\t0x01\n #define SYSCLOSE\t0x02\n+#define SYSWRITE\t0x05\n #define SYSREAD\t\t0x06\n+#define SYSSEEK\t\t0x0A\n #define SYSFLEN\t\t0x0C\n #define SYSERRNO\t0x13\n \n@@ -80,14 +80,22 @@ long smh_open(const char *fname, enum smh_open_mode mode)\n \treturn fd;\n }\n \n+/**\n+ * struct smg_rdwr_s - Arguments for read and write\n+ * @fd: A file descriptor returned from smh_open()\n+ * @memp: Pointer to a buffer of memory of at least @len bytes\n+ * @len: The number of bytes to read or write\n+ */\n+struct smh_rdwr_s {\n+\tlong fd;\n+\tvoid *memp;\n+\tsize_t len;\n+};\n+\n long smh_read(long fd, void *memp, size_t len)\n {\n \tlong ret;\n-\tstruct smh_read_s {\n-\t\tlong fd;\n-\t\tvoid *memp;\n-\t\tsize_t len;\n-\t} read;\n+\tstruct smh_rdwr_s read;\n \n \tdebug(\"%s: fd %ld, memp %p, len %zu\\n\", __func__, fd, memp, len);\n \n@@ -101,6 +109,24 @@ long smh_read(long fd, void *memp, size_t len)\n \treturn len - ret;\n }\n \n+long smh_write(long fd, const void *memp, size_t len, ulong *written)\n+{\n+\tlong ret;\n+\tstruct smh_rdwr_s write;\n+\n+\tdebug(\"%s: fd %ld, memp %p, len %zu\\n\", __func__, fd, memp, len);\n+\n+\twrite.fd = fd;\n+\twrite.memp = (void *)memp;\n+\twrite.len = len;\n+\n+\tret = smh_trap(SYSWRITE, &write);\n+\t*written = len - ret;\n+\tif (ret)\n+\t\treturn smh_errno();\n+\treturn 0;\n+}\n+\n long smh_close(long fd)\n {\n \tlong ret;\n@@ -125,6 +151,25 @@ long smh_flen(long fd)\n \treturn ret;\n }\n \n+long smh_seek(long fd, long pos)\n+{\n+\tlong ret;\n+\tstruct smh_seek_s {\n+\t\tlong fd;\n+\t\tlong pos;\n+\t} seek;\n+\n+\tdebug(\"%s: fd %ld pos %ld\\n\", __func__, fd, pos);\n+\n+\tseek.fd = fd;\n+\tseek.pos = pos;\n+\n+\tret = smh_trap(SYSSEEK, &seek);\n+\tif (ret)\n+\t\treturn smh_errno();\n+\treturn 0;\n+}\n+\n static int smh_load_file(const char * const name, ulong load_addr,\n \t\t\t ulong *end_addr)\n {\ndiff --git a/include/semihosting.h b/include/semihosting.h\nindex d8337b6269..b53c650444 100644\n--- a/include/semihosting.h\n+++ b/include/semihosting.h\n@@ -50,6 +50,17 @@ long smh_open(const char *fname, enum smh_open_mode mode);\n */\n long smh_read(long fd, void *memp, size_t len);\n \n+/**\n+ * smh_write() - Write data to a file\n+ * @fd: A file descriptor returned from smh_open()\n+ * @memp: Pointer to a buffer of memory of at least @len bytes\n+ * @len: The number of bytes to read\n+ * @written: Pointer which will be updated with the actual bytes written\n+ *\n+ * Return: 0 on success or negative error on failure\n+ */\n+long smh_write(long fd, const void *memp, size_t len, ulong *written);\n+\n /**\n * smh_close() - Close an open file\n * @fd: A file descriptor returned from smh_open()\n@@ -66,4 +77,13 @@ long smh_close(long fd);\n */\n long smh_flen(long fd);\n \n+/**\n+ * smh_seek() - Seek to a position in a file\n+ * @fd: A file descriptor returned from smh_open()\n+ * @pos: The offset (in bytes) to seek to\n+ *\n+ * Return: 0 on success or negative error on failure\n+ */\n+long smh_seek(long fd, long pos);\n+\n #endif /* _SEMIHOSTING_H */\n", "prefixes": [ "09/17" ] }