347 lines
12 KiB
C
347 lines
12 KiB
C
/****************************************************************************
|
|
* tools/mkconfig.c
|
|
*
|
|
* Copyright (C) 2007-2010 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <limits.h>
|
|
#include <ctype.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
|
|
/****************************************************************************
|
|
* Definitions
|
|
****************************************************************************/
|
|
|
|
#define DEFCONFIG ".config"
|
|
#define LINESIZE ( PATH_MAX > 256 ? PATH_MAX : 256 )
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
static char line[LINESIZE+1];
|
|
|
|
static char *skip_space(char *ptr)
|
|
{
|
|
while (*ptr && isspace(*ptr)) ptr++;
|
|
return ptr;
|
|
}
|
|
|
|
static char *find_name_end(char *ptr)
|
|
{
|
|
while (*ptr && (isalnum(*ptr) || *ptr == '_')) ptr++;
|
|
return ptr;
|
|
}
|
|
|
|
static char *find_value_end(char *ptr)
|
|
{
|
|
while (*ptr && !isspace(*ptr))
|
|
{
|
|
if (*ptr == '"')
|
|
{
|
|
do ptr++; while (*ptr && *ptr != '"');
|
|
if (*ptr) ptr++;
|
|
}
|
|
else
|
|
{
|
|
do ptr++; while (*ptr && !isspace(*ptr) && *ptr != '"');
|
|
}
|
|
}
|
|
return ptr;
|
|
}
|
|
|
|
static char *read_line(FILE *stream)
|
|
{
|
|
char *ptr;
|
|
|
|
for (;;)
|
|
{
|
|
line[LINESIZE] = '\0';
|
|
if (!fgets(line, LINESIZE, stream))
|
|
{
|
|
return NULL;
|
|
}
|
|
else
|
|
{
|
|
ptr = skip_space(line);
|
|
if (*ptr && *ptr != '#' && *ptr != '\n')
|
|
{
|
|
return ptr;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void parse_line(char *ptr, char **varname, char **varval)
|
|
{
|
|
*varname = ptr;
|
|
*varval = NULL;
|
|
|
|
ptr = find_name_end(ptr);
|
|
if (*ptr && *ptr != '=')
|
|
{
|
|
*ptr = '\0';
|
|
ptr = skip_space(ptr + 1);
|
|
}
|
|
|
|
if (*ptr == '=')
|
|
{
|
|
*ptr = '\0';
|
|
ptr = skip_space(ptr + 1);
|
|
if (*ptr)
|
|
{
|
|
*varval = ptr;
|
|
ptr = find_value_end(ptr);
|
|
*ptr = '\0';
|
|
}
|
|
}
|
|
}
|
|
|
|
static void parse_file(FILE *stream)
|
|
{
|
|
char *varname;
|
|
char *varval;
|
|
char *ptr;
|
|
|
|
do
|
|
{
|
|
ptr = read_line(stream);
|
|
if (ptr)
|
|
{
|
|
parse_line(ptr, &varname, &varval);
|
|
if (varname)
|
|
{
|
|
if (!varval || strcmp(varval, "n") == 0)
|
|
{
|
|
printf("#undef %s\n", varname);
|
|
}
|
|
else if (strcmp(varval, "y") == 0)
|
|
{
|
|
printf("#define %s 1\n", varname);
|
|
}
|
|
else
|
|
{
|
|
printf("#define %s %s\n", varname, varval);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
while (ptr);
|
|
}
|
|
|
|
static inline char *getfilepath(const char *name)
|
|
{
|
|
snprintf(line, PATH_MAX, "%s/" DEFCONFIG, name);
|
|
line[PATH_MAX] = '\0';
|
|
return strdup(line);
|
|
}
|
|
|
|
static void show_usage(const char *progname)
|
|
{
|
|
fprintf(stderr, "USAGE: %s <abs path to .config>\n", progname);
|
|
exit(1);
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
int main(int argc, char **argv, char **envp)
|
|
{
|
|
char *filepath;
|
|
FILE *stream;
|
|
|
|
if (argc != 2)
|
|
{
|
|
fprintf(stderr, "Unexpected number of arguments\n");
|
|
show_usage(argv[0]);
|
|
}
|
|
|
|
filepath = getfilepath(argv[1]);
|
|
if (!filepath)
|
|
{
|
|
fprintf(stderr, "getfilepath failed\n");
|
|
exit(2);
|
|
}
|
|
|
|
stream= fopen(filepath, "r");
|
|
if (!stream)
|
|
{
|
|
fprintf(stderr, "open %s failed: %s\n", filepath, strerror(errno));
|
|
exit(3);
|
|
}
|
|
|
|
printf("/* config.h -- Autogenerated! Do not edit. */\n\n");
|
|
printf("#ifndef __ARCH_CONFIG_H\n");
|
|
printf("#define __ARCH_CONFIG_H\n\n");
|
|
printf("/* Architecture-specific options *************************/\n\n");
|
|
parse_file(stream);
|
|
printf("\n/* Sanity Checks *****************************************/\n\n");
|
|
printf("/* If this is an NXFLAT, external build, then make sure that\n");
|
|
printf(" * NXFLAT support is enabled in the base code.\n");
|
|
printf(" */\n\n");
|
|
printf("#if defined(__NXFLAT__) && !defined(CONFIG_NXFLAT)\n");
|
|
printf("# error \"NXFLAT support not enabled in this configuration\"\n");
|
|
printf("#endif\n\n");
|
|
printf("/* NXFLAT requires PIC support in the TCBs. */\n\n");
|
|
printf("#if defined(CONFIG_NXFLAT)\n");
|
|
printf("# undef CONFIG_PIC\n");
|
|
printf("# define CONFIG_PIC 1\n");
|
|
printf("#endif\n\n");
|
|
printf("/* Binary format support is disabled if no binary formats are\n");
|
|
printf(" * configured (at present, NXFLAT is the only supported binary.\n");
|
|
printf(" * format).\n");
|
|
printf(" */\n\n");
|
|
printf("#if !defined(CONFIG_NXFLAT)\n");
|
|
printf("# undef CONFIG_BINFMT_DISABLE\n");
|
|
printf("# define CONFIG_BINFMT_DISABLE 1\n");
|
|
printf("#endif\n\n");
|
|
printf("/* The correct way to disable RR scheduling is to set the\n");
|
|
printf(" * timeslice to zero.\n");
|
|
printf(" */\n\n");
|
|
printf("#ifndef CONFIG_RR_INTERVAL\n");
|
|
printf("# define CONFIG_RR_INTERVAL 0\n");
|
|
printf("#endif\n\n");
|
|
printf("/* The correct way to disable filesystem supuport is to set the\n");
|
|
printf(" * number of file descriptors to zero.\n");
|
|
printf(" */\n\n");
|
|
printf("#ifndef CONFIG_NFILE_DESCRIPTORS\n");
|
|
printf("# define CONFIG_NFILE_DESCRIPTORS 0\n");
|
|
printf("#endif\n\n");
|
|
printf("/* If a console is selected, then make sure that there are\n");
|
|
printf(" * resources for 3 file descriptors and, if any streams are\n");
|
|
printf(" * selected, also for 3 file streams.\n");
|
|
printf(" */\n\n");
|
|
printf("#ifdef CONFIG_DEV_CONSOLE\n");
|
|
printf("# if CONFIG_NFILE_DESCRIPTORS < 3\n");
|
|
printf("# undef CONFIG_NFILE_DESCRIPTORS\n");
|
|
printf("# define CONFIG_NFILE_DESCRIPTORS 3\n");
|
|
printf("# endif\n\n");
|
|
printf("# if CONFIG_NFILE_STREAMS > 0 && CONFIG_NFILE_STREAMS < 3\n");
|
|
printf("# undef CONFIG_NFILE_STREAMS\n");
|
|
printf("# define CONFIG_NFILE_STREAMS 3\n");
|
|
printf("# endif\n");
|
|
printf("#endif\n\n");
|
|
printf("/* If priority inheritance is disabled, then do not allocate any\n");
|
|
printf(" * associated resources.\n");
|
|
printf(" */\n\n");
|
|
printf("#if !defined(CONFIG_PRIORITY_INHERITANCE) || !defined(CONFIG_SEM_PREALLOCHOLDERS)\n");
|
|
printf("# undef CONFIG_SEM_PREALLOCHOLDERS\n");
|
|
printf("# define CONFIG_SEM_PREALLOCHOLDERS 0\n");
|
|
printf("#endif\n\n");
|
|
printf("#if !defined(CONFIG_PRIORITY_INHERITANCE) || !defined(CONFIG_SEM_NNESTPRIO)\n");
|
|
printf("# undef CONFIG_SEM_NNESTPRIO\n");
|
|
printf("# define CONFIG_SEM_NNESTPRIO 0\n");
|
|
printf("#endif\n\n");
|
|
printf("/* If no file descriptors are configured, then make certain no\n");
|
|
printf(" * streams are configured either.\n");
|
|
printf(" */\n\n");
|
|
printf("#if CONFIG_NFILE_DESCRIPTORS == 0\n");
|
|
printf("# undef CONFIG_NFILE_STREAMS\n");
|
|
printf("# define CONFIG_NFILE_STREAMS 0\n");
|
|
printf("#endif\n\n");
|
|
printf("/* There must be at least one memory region. */\n\n");
|
|
printf("#ifndef CONFIG_MM_REGIONS\n");
|
|
printf("# define CONFIG_MM_REGIONS 1\n");
|
|
printf("#endif\n\n");
|
|
printf("/* If no file streams are configured, then make certain that buffered I/O\n");
|
|
printf(" * support is disabled\n");
|
|
printf(" */\n\n");
|
|
printf("#if CONFIG_NFILE_STREAMS == 0\n");
|
|
printf("# undef CONFIG_STDIO_BUFFER_SIZE\n");
|
|
printf("# define CONFIG_STDIO_BUFFER_SIZE 0\n");
|
|
printf("#endif\n\n");
|
|
printf("/* If the maximum message size is zero, then we assume that message queues\n");
|
|
printf(" * support should be disabled\n");
|
|
printf(" */\n\n");
|
|
printf("#if CONFIG_MQ_MAXMSGSIZE <= 0 && !defined(CONFIG_DISABLE_MQUEUE)\n");
|
|
printf("# define CONFIG_DISABLE_MQUEUE 1\n");
|
|
printf("#endif\n\n");
|
|
printf("/* If mountpoint support in not included, then no filesystem can be supported */\n\n");
|
|
printf("#ifdef CONFIG_DISABLE_MOUNTPOINT\n");
|
|
printf("# undef CONFIG_FS_FAT\n");
|
|
printf("# undef CONFIG_FS_ROMFS\n");
|
|
printf("#endif\n\n");
|
|
printf("/* Check if any readable and writable filesystem (OR USB storage) is supported */\n\n");
|
|
printf("#undef CONFIG_FS_READABLE\n");
|
|
printf("#undef CONFIG_FS_WRITABLE\n");
|
|
printf("#if defined(CONFIG_FS_FAT) || defined(CONFIG_FS_ROMFS) || defined(CONFIG_USBSTRG)\n");
|
|
printf("# define CONFIG_FS_READABLE 1\n");
|
|
printf("#endif\n\n");
|
|
printf("#if defined(CONFIG_FS_FAT) || defined(CONFIG_USBSTRG)\n");
|
|
printf("# define CONFIG_FS_WRITABLE 1\n");
|
|
printf("#endif\n\n");
|
|
printf("/* There can be no network support with no socket descriptors */\n\n");
|
|
printf("#if CONFIG_NSOCKET_DESCRIPTORS <= 0\n");
|
|
printf("# undef CONFIG_NET\n");
|
|
printf("#endif\n\n");
|
|
printf("/* Conversely, if there is no network support, there is no need for\n");
|
|
printf(" * socket descriptors\n");
|
|
printf(" */\n\n");
|
|
printf("#ifndef CONFIG_NET\n");
|
|
printf("# undef CONFIG_NSOCKET_DESCRIPTORS\n");
|
|
printf("# define CONFIG_NSOCKET_DESCRIPTORS 0\n");
|
|
printf("#endif\n\n");
|
|
printf("/* Protocol support can only be provided on top of basic network support */\n\n");
|
|
printf("#ifndef CONFIG_NET\n");
|
|
printf("# undef CONFIG_NET_TCP\n");
|
|
printf("# undef CONFIG_NET_UDP\n");
|
|
printf("# undef CONFIG_NET_ICMP\n");
|
|
printf("#endif\n\n");
|
|
printf("/* Verbose debug and sub-system debug only make sense if debug is enabled */\n\n");
|
|
printf("#ifndef CONFIG_DEBUG\n");
|
|
printf("# undef CONFIG_DEBUG_VERBOSE\n");
|
|
printf("# undef CONFIG_DEBUG_SCHED\n");
|
|
printf("# undef CONFIG_DEBUG_MM\n");
|
|
printf("# undef CONFIG_DEBUG_PAGING\n");
|
|
printf("# undef CONFIG_DEBUG_DMA\n");
|
|
printf("# undef CONFIG_DEBUG_FS\n");
|
|
printf("# undef CONFIG_DEBUG_LIB\n");
|
|
printf("# undef CONFIG_DEBUG_BINFMT\n");
|
|
printf("# undef CONFIG_DEBUG_NET\n");
|
|
printf("# undef CONFIG_DEBUG_USB\n");
|
|
printf("# undef CONFIG_DEBUG_GRAPHICS\n");
|
|
printf("# undef CONFIG_DEBUG_GPIO\n");
|
|
printf("#endif\n\n");
|
|
printf("#endif /* __ARCH_CONFIG_H */\n");
|
|
fclose(stream);
|
|
return 0;
|
|
}
|