From: José Fonseca Date: Fri, 11 Dec 2009 20:16:15 +0000 (+0000) Subject: util: Add dl wrappers. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d508bf862bdb2c706a6c8a3a0a7f99de77e5c8cc;p=mesa.git util: Add dl wrappers. Borrowed from Mesa, slightly changed for more type safety. --- diff --git a/src/gallium/auxiliary/util/Makefile b/src/gallium/auxiliary/util/Makefile index 1d8bb55bbd6..863ced5e938 100644 --- a/src/gallium/auxiliary/util/Makefile +++ b/src/gallium/auxiliary/util/Makefile @@ -11,6 +11,7 @@ C_SOURCES = \ u_blit.c \ u_cache.c \ u_cpu_detect.c \ + u_dl.c \ u_draw_quad.c \ u_format.c \ u_format_access.c \ diff --git a/src/gallium/auxiliary/util/SConscript b/src/gallium/auxiliary/util/SConscript index 8d99106d0b8..379f3da91e3 100644 --- a/src/gallium/auxiliary/util/SConscript +++ b/src/gallium/auxiliary/util/SConscript @@ -30,6 +30,7 @@ util = env.ConvenienceLibrary( 'u_debug_memory.c', 'u_debug_stack.c', 'u_debug_symbol.c', + 'u_dl.c', 'u_draw_quad.c', 'u_format.c', 'u_format_access.c', diff --git a/src/gallium/auxiliary/util/u_dl.c b/src/gallium/auxiliary/util/u_dl.c new file mode 100644 index 00000000000..b42b429d4d7 --- /dev/null +++ b/src/gallium/auxiliary/util/u_dl.c @@ -0,0 +1,79 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * Copyright 1999-2008 Brian Paul + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + **************************************************************************/ + + +#include "pipe/p_config.h" + +#if defined(PIPE_OS_UNIX) +#include +#endif +#if defined(PIPE_OS_WINDOWS) +#include +#endif + +#include "u_dl.h" + + +struct util_dl_library * +util_dl_open(const char *filename) +{ +#if defined(PIPE_OS_UNIX) + return (struct util_dl_library *)dlopen(filename, RTLD_LAZY | RTLD_GLOBAL); +#elif defined(PIPE_OS_WINDOWS) + return (struct util_dl_library *)LoadLibraryA(filename); +#else + return NULL; +#endif +} + + +util_dl_proc +util_dl_get_proc_address(struct util_dl_library *library, + const char *procname) +{ +#if defined(PIPE_OS_UNIX) + return (util_dl_proc)dlsym((void *)library, procname); +#elif defined(PIPE_OS_WINDOWS) + return (util_dl_proc)GetProcAddress((HMODULE)library, procname); +#else + return (util_dl_proc)NULL; +#endif +} + + +void +util_dl_close(struct util_dl_library *library) +{ +#if defined(PIPE_OS_UNIX) + dlclose((void *)library); +#elif defined(PIPE_OS_WINDOWS) + FreeLibrary((HMODULE)library); +#else + (void)library; +#endif +} diff --git a/src/gallium/auxiliary/util/u_dl.h b/src/gallium/auxiliary/util/u_dl.h new file mode 100644 index 00000000000..018b38543b0 --- /dev/null +++ b/src/gallium/auxiliary/util/u_dl.h @@ -0,0 +1,61 @@ +/************************************************************************** + * + * Copyright 2009 VMware, Inc. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + **************************************************************************/ + + +#ifndef U_DL_H_ +#define U_DL_H_ + + +struct util_dl_library; + + +typedef void (*util_dl_proc)(void); + + +/** + * Open a library dynamically. + */ +struct util_dl_library * +util_dl_open(const char *filename); + + +/** + * Lookup a function in a library. + */ +util_dl_proc +util_dl_get_proc_address(struct util_dl_library *library, + const char *procname); + + +/** + * Close a library. + */ +void +util_dl_close(struct util_dl_library *library); + + +#endif /* U_DL_H_ */