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/* d-incpath.cc -- Set up combined import paths for the D frontend.
Copyright (C) 2006-2022 Free Software Foundation, Inc.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "dmd/globals.h"
#include "d-frontend.h"
#include "cppdefault.h"
/* Look for directories that start with the standard prefix.
"Translate" them, i.e: replace /usr/local/lib/gcc with
IPREFIX and search them first. Based on incpath.cc. */
static char *
prefixed_path (const char *path, const char *iprefix)
{
if (cpp_relocated () && cpp_PREFIX_len != 0)
{
if (!filename_ncmp (path, cpp_PREFIX, cpp_PREFIX_len))
{
static const char *relocated_prefix;
/* If this path starts with the configure-time prefix,
but the compiler has been relocated, replace it
with the run-time prefix. */
if (!relocated_prefix)
{
/* Make relative prefix expects the first argument
to be a program, not a directory. */
char *dummy = concat (gcc_exec_prefix, "dummy", NULL);
relocated_prefix
= make_relative_prefix (dummy,
cpp_EXEC_PREFIX,
cpp_PREFIX);
free (dummy);
}
return concat (relocated_prefix, path + cpp_PREFIX_len, NULL);
}
}
if (iprefix && cpp_GCC_INCLUDE_DIR_len != 0)
{
if (!filename_ncmp (path, cpp_GCC_INCLUDE_DIR, cpp_GCC_INCLUDE_DIR_len))
return concat (iprefix, path + cpp_GCC_INCLUDE_DIR_len, NULL);
}
return xstrdup (path);
}
/* Add PATHS to the global import lookup path. */
static void
add_globalpaths (Strings *paths)
{
if (paths)
{
if (!global.path)
global.path = d_gc_malloc<Strings> ();
for (size_t i = 0; i < paths->length; i++)
{
const char *path = (*paths)[i];
const char *target = lrealpath (path);
if (target == NULL || !FileName::exists (target))
{
if (target)
free (CONST_CAST (char *, target));
continue;
}
global.path->push (target);
}
}
}
/* Add PATHS to the global file import lookup path. */
static void
add_filepaths (Strings *paths)
{
if (paths)
{
if (!global.filePath)
global.filePath = d_gc_malloc<Strings> ();
for (size_t i = 0; i < paths->length; i++)
{
const char *path = (*paths)[i];
const char *target = lrealpath (path);
if (!FileName::exists (target))
{
free (CONST_CAST (char *, target));
continue;
}
global.filePath->push (target);
}
}
}
/* Add all search directories to compiler runtime.
if STDINC, also include standard library paths. */
void
add_import_paths (const char *iprefix, const char *imultilib, bool stdinc)
{
if (stdinc)
{
for (const default_include *p = cpp_include_defaults; p->fname; p++)
{
char *path;
/* Ignore C++ paths. */
if (p->cplusplus)
continue;
if (!p->add_sysroot)
path = prefixed_path (p->fname, iprefix);
else
path = xstrdup (p->fname);
/* Add D-specific suffix. */
path = concat (path, "/d", NULL);
/* Ignore duplicate entries. */
bool found = false;
for (size_t i = 0; i < global.params.imppath->length; i++)
{
if (strcmp (path, (*global.params.imppath)[i]) == 0)
{
found = true;
break;
}
}
if (found)
{
free (path);
continue;
}
/* Multilib support. */
if (imultilib)
{
char *target_path = concat (path, "/", imultilib, NULL);
global.params.imppath->shift (target_path);
}
global.params.imppath->shift (path);
}
}
/* Add import search paths. */
if (global.params.imppath)
{
for (size_t i = 0; i < global.params.imppath->length; i++)
{
const char *path = (*global.params.imppath)[i];
if (path)
add_globalpaths (FileName::splitPath (path));
}
}
/* Add string import search paths. */
if (global.params.fileImppath)
{
for (size_t i = 0; i < global.params.fileImppath->length; i++)
{
const char *path = (*global.params.fileImppath)[i];
if (path)
add_filepaths (FileName::splitPath (path));
}
}
}
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