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6d53c0962c
The newer update-copyright.py fixes file encoding too, removing cr/lf on binutils/bfdtest2.c and ld/testsuite/ld-cygwin/exe-export.exp, and embedded cr in binutils/testsuite/binutils-all/ar.exp string match.
148 lines
3.3 KiB
C
148 lines
3.3 KiB
C
/* Xtensa configuration settings loader.
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Copyright (C) 2022-2023 Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#include "sysdep.h"
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#include "bfd.h"
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#include "libbfd.h"
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#define XTENSA_CONFIG_DEFINITION
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#include "xtensa-config.h"
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#include "xtensa-dynconfig.h"
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#if defined (HAVE_DLFCN_H)
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#include <dlfcn.h>
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#elif defined (HAVE_WINDOWS_H)
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#include <windows.h>
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#endif
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#if !defined (HAVE_DLFCN_H) && defined (HAVE_WINDOWS_H)
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#define RTLD_LAZY 0 /* Dummy value. */
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static void *
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dlopen (const char *file, int mode ATTRIBUTE_UNUSED)
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{
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return LoadLibrary (file);
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}
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static void *
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dlsym (void *handle, const char *name)
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{
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return (void *) GetProcAddress ((HMODULE) handle, name);
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}
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static int ATTRIBUTE_UNUSED
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dlclose (void *handle)
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{
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FreeLibrary ((HMODULE) handle);
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return 0;
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}
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static const char *
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dlerror (void)
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{
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return _("Unable to load DLL.");
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}
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#endif /* !defined (HAVE_DLFCN_H) && defined (HAVE_WINDOWS_H) */
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#define CONFIG_ENV_NAME "XTENSA_GNU_CONFIG"
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const void *xtensa_load_config (const char *name ATTRIBUTE_UNUSED,
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const void *no_plugin_def,
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const void *no_name_def ATTRIBUTE_UNUSED)
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{
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static int init;
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#if BFD_SUPPORTS_PLUGINS
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static void *handle;
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void *p;
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if (!init)
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{
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const char *path = getenv (CONFIG_ENV_NAME);
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init = 1;
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if (!path)
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return no_plugin_def;
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handle = dlopen (path, RTLD_LAZY);
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if (!handle)
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{
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_bfd_error_handler (_("%s is defined but could not be loaded: %s"),
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CONFIG_ENV_NAME, dlerror ());
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abort ();
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}
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}
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else if (!handle)
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{
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return no_plugin_def;
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}
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p = dlsym (handle, name);
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if (!p)
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{
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if (no_name_def)
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return no_name_def;
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_bfd_error_handler (_("%s is loaded but symbol \"%s\" is not found: %s"),
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CONFIG_ENV_NAME, name, dlerror ());
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abort ();
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}
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return p;
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#else
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if (!init)
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{
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const char *path = getenv (CONFIG_ENV_NAME);
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init = 1;
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if (path)
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{
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_bfd_error_handler (_("%s is defined but plugin support is disabled"),
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CONFIG_ENV_NAME);
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abort ();
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}
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}
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return no_plugin_def;
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#endif
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}
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XTENSA_CONFIG_INSTANCE_LIST;
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const struct xtensa_config_v1 *xtensa_get_config_v1 (void)
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{
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static const struct xtensa_config_v1 *config;
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if (!config)
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config = (const struct xtensa_config_v1 *) xtensa_load_config ("xtensa_config_v1",
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&xtensa_config_v1,
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NULL);
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return config;
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}
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const struct xtensa_config_v2 *xtensa_get_config_v2 (void)
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{
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static const struct xtensa_config_v2 *config;
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static const struct xtensa_config_v2 def;
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if (!config)
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config = (const struct xtensa_config_v2 *) xtensa_load_config ("xtensa_config_v2",
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&xtensa_config_v2,
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&def);
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return config;
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}
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