os: New OS abstraction module.

1 files changed, 95 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/os/os_misc.h b/src/gallium/auxiliary/os/os_misc.h
new file mode 100644
index 0000000000..56e48ca9be
--- /dev/null
+++ b/src/gallium/auxiliary/os/os_misc.h
@@ -0,0 +1,95 @@
+/**************************************************************************
+ *
+ * Copyright 2010 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 above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * 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 VMWARE 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.
+ *
+ **************************************************************************/
+
+
+/*
+ * Miscellaneous OS services.
+ */
+
+
+#ifndef _OS_MISC_H_
+#define _OS_MISC_H_
+
+
+#include "pipe/p_compiler.h"
+
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+
+/*
+ * Trap into the debugger.
+ */
+#if (defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)) && defined(PIPE_CC_GCC)
+#  define os_break() __asm("int3")
+#elif defined(PIPE_CC_MSVC)
+#  define os_break()  __debugbreak()
+#elif defined(PIPE_OS_UNIX)
+#  include <signal.h> /* for kill() */
+#  include <unistd.h> /* for getpid() */
+#  define os_break() kill(getpid(), SIGTRAP)
+#elif defined(PIPE_OS_EMBEDDED)
+void os_break(void);
+#else
+#  define os_break() abort()
+#endif
+
+
+/*
+ * Abort the program.
+ */
+#if defined(DEBUG) || defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) || defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT)
+#  define os_abort() os_break()
+#elif defined(PIPE_OS_EMBEDDED)
+void os_abort(void);
+#else
+#  define os_abort() abort()
+#endif
+
+
+/*
+ * Output a message. Message should preferably end in a newline.
+ */
+void
+os_log_message(const char *message);
+
+
+/*
+ * Get an option. Should return NULL if specified option is not set.
+ */
+const char *
+os_get_option(const char *name);
+
+
+#ifdef	__cplusplus
+}
+#endif
+
+
+#endif /* _OS_MISC_H_ */