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ab89959180
Previously, "cgpt" called out to "flashrom" directly to read and write NOR area. This CL removes that dependency and always treats "drive_path" as the storage of GPT structs. This makes it consistent that whatever device that cgpt reads from or writes to is always the device that stores GPT structs. We only need to pass in the size of the drive that contains the partitions, but we do not need to access to that drive. More information is in the bug. BUG=chromium:432611 BRANCH=none TEST=unittest CQ-DEPEND=CL:228942 Change-Id: Id0139adf70463cec4f2924de8b9a4725dbec822b Reviewed-on: https://chromium-review.googlesource.com/229736 Reviewed-by: Bill Richardson <wfrichar@chromium.org> Commit-Queue: Nam Nguyen <namnguyen@chromium.org> Tested-by: Nam Nguyen <namnguyen@chromium.org>
98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
// Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <getopt.h>
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#include <string.h>
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#include "cgpt.h"
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#include "vboot_host.h"
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extern const char* progname;
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static void Usage(void)
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{
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printf("\nUsage: %s boot [OPTIONS] DRIVE\n\n"
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"Edit the PMBR sector for legacy BIOSes\n\n"
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"Options:\n"
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" -D NUM Size (in bytes) of the disk where partitions reside\n"
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" default 0, meaning partitions and GPT structs are\n"
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" both on DRIVE\n"
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" -i NUM Set bootable partition\n"
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" -b FILE Install bootloader code in the PMBR\n"
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" -p Create legacy PMBR partition table\n"
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"\n"
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"With no options, it will just print the PMBR boot guid\n"
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"\n", progname);
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}
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int cmd_boot(int argc, char *argv[]) {
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CgptBootParams params;
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memset(¶ms, 0, sizeof(params));
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int c;
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int errorcnt = 0;
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char *e = 0;
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opterr = 0; // quiet, you
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while ((c=getopt(argc, argv, ":hi:b:pD:")) != -1)
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{
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switch (c)
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{
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case 'D':
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params.drive_size = strtoull(optarg, &e, 0);
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if (!*optarg || (e && *e))
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{
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Error("invalid argument to -%c: \"%s\"\n", c, optarg);
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errorcnt++;
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}
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break;
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case 'i':
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params.partition = (uint32_t)strtoul(optarg, &e, 0);
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if (!*optarg || (e && *e))
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{
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Error("invalid argument to -%c: \"%s\"\n", c, optarg);
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errorcnt++;
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}
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break;
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case 'b':
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params.bootfile = optarg;
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break;
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case 'p':
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params.create_pmbr = 1;
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break;
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case 'h':
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Usage();
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return CGPT_OK;
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case '?':
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Error("unrecognized option: -%c\n", optopt);
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errorcnt++;
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break;
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case ':':
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Error("missing argument to -%c\n", optopt);
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errorcnt++;
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break;
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default:
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errorcnt++;
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break;
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}
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}
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if (errorcnt)
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{
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Usage();
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return CGPT_FAILED;
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}
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if (optind >= argc) {
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Error("missing drive argument\n");
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return CGPT_FAILED;
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}
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params.drive_name = argv[optind];
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return CgptBoot(¶ms);
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}
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