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incubator-nuttx/tools/incdir.c

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/****************************************************************************
* tools/incdir.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#ifndef CONFIG_WINDOWS_NATIVE
#include <sys/utsname.h>
#endif
#include <stdbool.h>
#include <stdlib.h>
#include <stdarg.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <libgen.h>
#include <errno.h>
#ifdef HOST_CYGWIN
# include <sys/cygwin.h>
#endif
/****************************************************************************
* Private Types
****************************************************************************/
enum pathtype_e
{
USER_PATH = 0,
SYSTEM_PATH
};
enum os_e
{
OS_UNKNOWN = 0,
OS_LINUX,
OS_WINDOWS,
OS_CYGWIN,
OS_MSYS,
OS_WSL,
OS_MACOS,
OS_BSD
};
enum compiler_e
{
COMPILER_UNKNOWN = 0,
COMPILER_GCC,
COMPILER_CLANG,
COMPILER_MINGW,
COMPILER_SDCC,
COMPILER_ZDSII
};
/****************************************************************************
* Private Functions
****************************************************************************/
static void show_advice(const char *progname, int exitcode)
{
fprintf(stderr, "\nUSAGE: %s [-h] [-w] [-s] <compiler-path> "
"<dir1> [<dir2> [<dir3> ...]]\n",
progname);
fprintf(stderr, "Try '%s -h' for more information\n", progname);
exit(exitcode);
}
static void show_help(const char *progname, int exitcode)
{
fprintf(stderr, "%s is a tool for flexible generation of include path "
"arguments for a\n",
progname);
fprintf(stderr, "variety of different compilers in a variety of "
"compilation environments\n");
fprintf(stderr, "\nUSAGE: %s [-w] [-s] <compiler-path> "
"<dir1> [<dir2> [<dir3> ...]]\n",
progname);
fprintf(stderr, " %s -h\n\n", progname);
fprintf(stderr, "Where:\n");
fprintf(stderr, " <compiler-path>\n");
fprintf(stderr, " The full path to your compiler\n");
fprintf(stderr, " <dir1> [<dir2> [<dir3> ...]]\n");
fprintf(stderr, " A list of include directories\n");
fprintf(stderr, " -w\n");
fprintf(stderr, " The compiler is a Windows native tool and requires "
"Windows\n");
fprintf(stderr, " style pathnames like C:\\Program Files\n");
fprintf(stderr, " -s\n");
fprintf(stderr, " Generate standard, system header file paths instead "
"of normal user\n");
fprintf(stderr, " header file paths.\n");
fprintf(stderr, " -h\n");
fprintf(stderr, " Shows this help text and exits.\n");
exit(exitcode);
}
static enum os_e get_os(char *ccname)
{
#ifdef CONFIG_WINDOWS_NATIVE
/* Check for MinGW which implies a Windows native environment */
if (strstr(ccname, "mingw") != NULL)
{
return OS_WINDOWS;
}
#else
struct utsname buf;
int ret;
/* Get the context names */
ret = uname(&buf);
if (ret < 0)
{
int errcode = errno;
fprintf(stderr, "ERROR: uname failed: %s\n", strerror(errcode));
exit(EXIT_FAILURE);
}
if (strcmp(buf.sysname, "Linux") == 0)
{
return OS_LINUX; /* Or OS_WSL */
}
else if (strncmp(buf.sysname, "CYGWIN", 6) == 0)
{
return OS_CYGWIN;
}
else if (strncmp(buf.sysname, "MINGW", 5) == 0)
{
return OS_CYGWIN;
}
else if (strncmp(buf.sysname, "MSYS", 4) == 0)
{
return OS_CYGWIN;
}
else if (strcmp(buf.sysname, "Darwin") == 0)
{
return OS_MACOS;
}
else if (strcmp(buf.sysname, "FreeBSD") == 0 ||
strcmp(buf.sysname, "OpenBSD") == 0 ||
strcmp(buf.sysname, "GNU/kFreeBSD") == 0)
{
return OS_BSD;
}
else
{
fprintf(stderr, "ERROR: Unknown operating system: %s\n",
buf.sysname);
}
#endif
return OS_UNKNOWN;
}
static enum compiler_e get_compiler(char *ccname, enum os_e os)
{
/* Let's assume that all GCC compiler paths contain the string gcc or
* g++ and no non-GCC compiler paths include these substrings.
*
* If the compiler is called cc, let's assume that is GCC too.
*/
if (strstr(ccname, "gcc") != NULL ||
strstr(ccname, "g++") != NULL ||
strncmp(ccname, "cc.", 3) == 0)
{
return COMPILER_GCC;
}
else if (strstr(ccname, "clang") != NULL)
{
return COMPILER_CLANG;
}
else if (strstr(ccname, "sdcc") != NULL)
{
return COMPILER_SDCC;
}
else if (strstr(ccname, "mingw") != NULL)
{
return COMPILER_MINGW;
}
else if (strstr(ccname, "ez8cc") != NULL ||
strstr(ccname, "zneocc") != NULL ||
strstr(ccname, "ez80cc") != NULL)
{
return COMPILER_ZDSII;
}
else
{
/* Unknown compiler. Assume GCC-compatible */
return COMPILER_GCC;
}
}
static int my_asprintf(char **strp, const char *fmt, ...)
{
va_list ap;
ssize_t bufsize;
char *buffer;
/* Get the size of the buffer */
va_start(ap, fmt);
bufsize = vsnprintf(NULL, 0, fmt, ap);
va_end(ap);
if (bufsize <= 0)
{
fprintf(stderr, "ERROR: vsnprintf() failed.\n");
exit (EXIT_FAILURE);
}
buffer = malloc(bufsize + 1);
if (buffer == NULL)
{
fprintf(stderr, "ERROR: Failed allocated vsnprintf() buffer.\n");
exit (EXIT_FAILURE);
}
va_start(ap, fmt);
vsnprintf(buffer, bufsize + 1, fmt, ap);
va_end(ap);
*strp = buffer;
return bufsize;
}
/****************************************************************************
* Public Functions
****************************************************************************/
int main(int argc, char **argv, char **envp)
{
#ifdef HOST_CYGWIN
char *convpath = NULL;
bool wintool = false;
#endif
enum pathtype_e pathtype = USER_PATH;
enum os_e os;
enum compiler_e compiler;
const char *progname = argv[0];
const char *cmdarg;
char *ccname;
char * const *dirlist;
size_t respsize = 0;
char *response = NULL;
int ndirs;
int ret;
int ch;
int i;
/* Handle command line options */
while ((ch = getopt(argc, argv, "wsh")) >= 0)
{
switch (ch)
{
case 'w':
#ifdef HOST_CYGWIN
wintool = true;
#endif
break;
case 's':
pathtype = SYSTEM_PATH;
break;
case 'h':
show_help(progname, EXIT_SUCCESS);
}
}
if (optind >= argc)
{
fprintf(stderr, "ERROR: Missing <compiler-path>\n");
show_advice(progname, EXIT_FAILURE);
}
ccname = basename(argv[optind]);
optind++;
if (optind >= argc)
{
fprintf(stderr, "ERROR: At least one directory must be supplied\n");
show_advice(progname, EXIT_FAILURE);
}
dirlist = &argv[optind];
ndirs = argc - optind;
/* Most compilers support CFLAG options like '-I<dir>' to add include
* file header paths. Some (like the Zilog tools), do not. This script
* makes the selection of header file paths compiler independent.
*
* Below are all known compiler names (as found in the board/ Make.defs
* files). If a new compiler is used that has some unusual syntax, then
* additional logic needs to be added to this file.
*
* NAME Syntax
* $(CROSSDEV)gcc -I<dir1> -I<dir2> -I<dir3> ...
* sdcc -I<dir2> -I<dir2> -I<dir3> ...
* $(ZDSBINDIR)/ez8cc.exe -usrinc:'<dir1>:<dir2>:<dir3>:...`
* $(ZDSBINDIR)/zneocc.exe -usrinc:'<dir1>:<dir2>:<dir3>:...`
* $(ZDSBINDIR)/ez80cc.exe -usrinc:'<dir1>:<dir2>:<dir3>:...`
*
* Furthermore, just to make matters more difficult, with Windows based
* toolchains, we have to use the full windows-style paths to the header
* files.
*/
os = get_os(ccname);
if (os == OS_UNKNOWN)
{
fprintf(stderr, "ERROR: Operating system not recognized\n");
show_advice(progname, EXIT_FAILURE);
}
compiler = get_compiler(ccname, os);
if (compiler == COMPILER_UNKNOWN)
{
fprintf(stderr, "ERROR: Compiler not recognized.\n");
show_advice(progname, EXIT_FAILURE);
}
/* Select system or user header file path command line option */
if (compiler == COMPILER_ZDSII)
{
cmdarg = (pathtype == SYSTEM_PATH) ? "-stdinc:" : "-usrinc:";
#ifdef HOST_CYGWIN
wintool = true;
#endif
}
else if (compiler == COMPILER_SDCC)
{
cmdarg = "-I";
}
else
{
cmdarg = (pathtype == SYSTEM_PATH) ? "-isystem" : "-I";
}
/* Now process each directory in the directory list */
for (i = 0; i < ndirs; i++)
{
const char *dirname;
const char *incpath;
char *saveresp;
char *segment = NULL;
size_t segsize;
dirname = dirlist[i];
#ifdef HOST_CYGWIN
/* Check if the path needs to be extended for Windows-based tools under
* Cygwin:
*
* wintool == true: The platform is Cygwin and we are using a windows
* native tool
*/
if (os == OS_CYGWIN && wintool)
{
ssize_t bufsize;
bufsize = cygwin_conv_path(CCP_POSIX_TO_WIN_A, dirname, NULL, 0);
convpath = (char *)malloc(bufsize);
if (convpath == NULL)
{
fprintf(stderr, "ERROR: Failed to allocate buffer.\n");
exit(EXIT_FAILURE);
}
cygwin_conv_path(CCP_POSIX_TO_WIN_A, dirname, convpath,
bufsize);
incpath = convpath;
}
else
#endif
{
incpath = dirname;
}
/* Handle the output using the selected format */
if (compiler == COMPILER_ZDSII)
{
/* FORM: -stdinc:'dir1;dir2;...;dirN'
* -usrinc:'dir1;dir2;...;dirN'
*/
/* Treat the first directory differently */
if (response == NULL)
{
if (i == ndirs - 1)
{
ret = my_asprintf(&segment, "%s'%s'", cmdarg, incpath);
}
else
{
ret = my_asprintf(&segment, "%s'%s", cmdarg, incpath);
}
}
else
{
if (i == ndirs - 1)
{
ret = my_asprintf(&segment, ";%s'", incpath);
}
else
{
ret = my_asprintf(&segment, ";%s", incpath);
}
}
}
else
{
/* FORM: -isystem: "dir1" -isystem "dir2" ... -isystem "dirN"
* -I: "dir1" -I "dir2" ... -I "dirN"
*/
/* Treat the first directory differently */
if (response == NULL)
{
ret = my_asprintf(&segment, "%s \"%s\"", cmdarg, incpath);
}
else
{
ret = my_asprintf(&segment, " %s \"%s\"", cmdarg, incpath);
}
}
if (ret < 0)
{
fprintf(stderr, "ERROR: my_asprintf failed.\n");
exit(EXIT_FAILURE);
}
/* Append the new response segment */
saveresp = response;
segsize = ret;
respsize += (response == NULL) ? segsize + 1 : segsize;
response = (char *)malloc(respsize);
if (response == NULL)
{
fprintf(stderr, "ERROR: Failed to allocate response.\n");
exit(EXIT_FAILURE);
}
if (saveresp == NULL)
{
strncpy(response, segment, respsize);
}
else
{
snprintf(response, respsize, "%s%s", saveresp, segment);
}
/* Clean up for the next pass */
if (saveresp != NULL)
{
free(saveresp);
}
if (segment != NULL)
{
free(segment);
segment = NULL;
}
#ifdef HOST_CYGWIN
if (convpath != NULL)
{
free(convpath);
convpath = NULL;
}
#endif
}
fputs(response, stdout);
free(response);
return EXIT_SUCCESS;
}
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