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