cregit-Linux how code gets into the kernel

Release 4.14 arch/mips/fw/lib/cmdline.c

Directory: arch/mips/fw/lib
/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 2012 MIPS Technologies, Inc.  All rights reserved.
 */
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/string.h>

#include <asm/addrspace.h>
#include <asm/fw/fw.h>


int fw_argc;

int *_fw_argv;

int *_fw_envp;


void __init fw_init_cmdline(void) { int i; /* Validate command line parameters. */ if ((fw_arg0 >= CKSEG0) || (fw_arg1 < CKSEG0)) { fw_argc = 0; _fw_argv = NULL; } else { fw_argc = (fw_arg0 & 0x0000ffff); _fw_argv = (int *)fw_arg1; } /* Validate environment pointer. */ if (fw_arg2 < CKSEG0) _fw_envp = NULL; else _fw_envp = (int *)fw_arg2; for (i = 1; i < fw_argc; i++) { strlcat(arcs_cmdline, fw_argv(i), COMMAND_LINE_SIZE); if (i < (fw_argc - 1)) strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE); } }

Contributors

PersonTokensPropCommitsCommitProp
Steven J. Hill121100.00%1100.00%
Total121100.00%1100.00%


char * __init fw_getcmdline(void) { return &(arcs_cmdline[0]); }

Contributors

PersonTokensPropCommitsCommitProp
Steven J. Hill18100.00%1100.00%
Total18100.00%1100.00%


char *fw_getenv(char *envname) { char *result = NULL; if (_fw_envp != NULL) { /* * Return a pointer to the given environment variable. * YAMON uses "name", "value" pairs, while U-Boot uses * "name=value". */ int i, yamon, index = 0; yamon = (strchr(fw_envp(index), '=') == NULL); i = strlen(envname); while (fw_envp(index)) { if (strncmp(envname, fw_envp(index), i) == 0) { if (yamon) { result = fw_envp(index + 1); break; } else if (fw_envp(index)[i] == '=') { result = fw_envp(index) + i + 1; break; } } /* Increment array index. */ if (yamon) index += 2; else index += 1; } } return result; }

Contributors

PersonTokensPropCommitsCommitProp
Steven J. Hill14298.61%150.00%
Alban Bedel21.39%150.00%
Total144100.00%2100.00%


unsigned long fw_getenvl(char *envname) { unsigned long envl = 0UL; char *str; int tmp; str = fw_getenv(envname); if (str) { tmp = kstrtoul(str, 0, &envl); if (tmp) envl = 0; } return envl; }

Contributors

PersonTokensPropCommitsCommitProp
Steven J. Hill5288.14%150.00%
Alban Bedel711.86%150.00%
Total59100.00%2100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Steven J. Hill36097.56%133.33%
Alban Bedel92.44%266.67%
Total369100.00%3100.00%
Directory: arch/mips/fw/lib
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