*\r
* \section Sec_BuildSystemOverview Overview of the LUFA Build System\r
* The LUFA build system is an attempt at making a set of re-usable, modular build make files which\r
- * can be referenced in a LUFA powered project, to minimise the amount of code required in an\r
- * application makefile. The system is written in GNU Make, and each module is independant of\r
+ * can be referenced in a LUFA powered project, to minimize the amount of code required in an\r
+ * application makefile. The system is written in GNU Make, and each module is independent of\r
* one-another.\r
*\r
* For details on the prerequisites needed for Linux and Windows machines to be able to use the LUFA\r
* project's build makefile targets automatically. To call a build target, run <tt>make {TARGET_NAME}</tt>\r
* from the command line, substituting in the appropriate target name.\r
*\r
- * \see \ref Sec_AppConfigParams for a copy of the sample LUFA project makefile.\r
+ * \see \ref Sec_AppMakefileParams for a copy of the sample LUFA project makefile.\r
*\r
* Each build module may have one or more mandatory parameters (GNU Make variables) which <i>must</i>\r
* be supplied in the project makefile for the module to work, and one or more optional parameters which\r
* \li \subpage Page_BuildModule_DOXYGEN - Automated Source Code Documentation\r
* \li \subpage Page_BuildModule_HID - Device Programming\r
* \li \subpage Page_BuildModule_SOURCES - LUFA Module Source Code Variables\r
+ *\r
+ * If you have problems building using the LUFA build system, see \subpage Page_BuildTroubleshooting for resolution steps.\r
*/\r
- \r
+\r
/** \page Page_BuildModule_BUILD The BUILD build module\r
*\r
* The BUILD LUFA build system module, providing targets for the compilation,\r
* <td>Display a size-sorted list of symbols from the compiled application, in decimal bytes.</td>\r
* </tr>\r
* <tr>\r
- * <td><tt>check-source</tt></td>\r
- * <td>Display a list of input SRC source files which cannot be found (if any).</td>\r
- * </tr>\r
- * <tr>\r
* <td><tt>lib</tt></td>\r
* <td>Build and archive all source files into a library A binary file.</td>\r
* </tr>\r
* <td>Build and link the application into an ELF debug file.</td>\r
* </tr>\r
* <tr>\r
+ * <td><tt>bin</tt></td>\r
+ * <td>Build and link the application and produce a BIN binary file.</td>\r
+ * </tr>\r
+ * <tr>\r
* <td><tt>hex</tt></td>\r
* <td>Build and link the application and produce HEX and EEP binary files.</td>\r
* </tr>\r
* </tr>\r
* <tr>\r
* <td><tt>clean</tt></td>\r
- * <td>Remove all intermediatary files and binary output files.</td>\r
+ * <td>Remove all intermediary files and binary output files.</td>\r
* </tr>\r
* <tr>\r
* <td><tt>mostlyclean</tt></td>\r
- * <td>Remove all intermediatary files but preserve any binary output files.</td>\r
+ * <td>Remove all intermediary files but preserve any binary output files.</td>\r
* </tr>\r
* <tr>\r
* <td><tt><i><filename></i>.s</tt></td>\r
* <td>Flags to pass to the linker, after the automatically generated flags.</td>\r
* </tr>\r
* <tr>\r
+ * <td><tt>LINKER_RELAXATIONS</tt></td>\r
+ * <td>Enables or disables linker relaxations when linking the application binary. This can reduce the total size\r
+ * of the application by replacing full \c CALL instructions with smaller \c RCALL instructions where possible.\r
+ * \note On some unpatched versions of binutils, this can cause link failures in some circumstances. If you\r
+ * receive a link error <tt>relocation truncated to fit: R_AVR_13_PCREL</tt>, disable this setting.</td>\r
+ * </tr>\r
+ * <tr>\r
* <td><tt>OBJDIR</tt></td>\r
* <td>Directory to place the generated object and dependency files. If set to "." the same folder as the source file will be used.\r
* \note When this option is enabled, all source filenames <b>must</b> be unique.</td>\r
* <tr>\r
* <td><i>None</i></td>\r
* </tr>\r
- * </table> \r
+ * </table>\r
*\r
* \section SSec_BuildModule_BUILD_ProvidedMacros Module Provided Macros\r
*\r
* <tr>\r
* <td><i>None</i></td>\r
* </tr>\r
- * </table> \r
+ * </table>\r
*\r
* \section SSec_BuildModule_CORE_ProvidedMacros Module Provided Macros\r
*\r
* <tr>\r
* <td><i>None</i></td>\r
* </tr>\r
- * </table> \r
+ * </table>\r
*\r
* \section SSec_BuildModule_ATPROGRAM_ProvidedMacros Module Provided Macros\r
*\r
* <tr>\r
* <td><i>None</i></td>\r
* </tr>\r
- * </table> \r
+ * </table>\r
*\r
* \section SSec_BuildModule_AVRDUDE_ProvidedMacros Module Provided Macros\r
*\r
* </tr>\r
* </table>\r
*/\r
- \r
+\r
/** \page Page_BuildModule_CPPCHECK The CPPCHECK build module\r
*\r
* The CPPCHECK programming utility LUFA build system module, providing targets to statically\r
* <tr>\r
* <td><i>None</i></td>\r
* </tr>\r
- * </table> \r
+ * </table>\r
*\r
* \section SSec_BuildModule_CPPCHECK_ProvidedMacros Module Provided Macros\r
*\r
* </tr>\r
* </table>\r
*/\r
- \r
+\r
/** \page Page_BuildModule_DFU The DFU build module\r
*\r
* The DFU programming utility LUFA build system module, providing targets to reprogram an\r
* <tr>\r
* <td><i>None</i></td>\r
* </tr>\r
- * </table> \r
+ * </table>\r
*\r
* \section SSec_BuildModule_DFU_ProvidedMacros Module Provided Macros\r
*\r
* </tr>\r
* </table>\r
*/\r
- \r
+\r
/** \page Page_BuildModule_DOXYGEN The DOXYGEN build module\r
*\r
* The DOXYGEN code documentation utility LUFA build system module, providing targets to generate\r
* <tr>\r
* <td><i>None</i></td>\r
* </tr>\r
- * </table> \r
+ * </table>\r
*\r
* \section SSec_BuildModule_DOXYGEN_ProvidedMacros Module Provided Macros\r
*\r
* </tr>\r
* </table>\r
*/\r
- \r
+\r
/** \page Page_BuildModule_HID The HID build module\r
*\r
* The HID programming utility LUFA build system module, providing targets to reprogram an\r
* <tr>\r
* <td><i>None</i></td>\r
* </tr>\r
- * </table> \r
+ * </table>\r
*\r
* \section SSec_BuildModule_HID_ProvidedMacros Module Provided Macros\r
*\r
* </tr>\r
* </table>\r
*/\r
- \r
+\r
/** \page Page_BuildModule_SOURCES The SOURCES build module\r
*\r
* The SOURCES LUFA build system module, providing variables listing the various LUFA source files\r
* <tr>\r
* <td><tt>LUFA_SRC_PLATFORM</tt></td>\r
* <td>List of LUFA architecture specific platform management source files.</td>\r
- * </tr> \r
- * </table> \r
+ * </tr>\r
+ * </table>\r
*\r
* \section SSec_BuildModule_SOURCES_ProvidedMacros Module Provided Macros\r
*\r
* </tr>\r
* </table>\r
*/\r
+\r
+/** \page Page_BuildTroubleshooting Troubleshooting Information\r
+ *\r
+ * LUFA uses a lot of advanced features of the AVR-GCC compiler, linker, and surrounding binaries. This can sometimes lead to problems compiling applications if one of these\r
+ * features is buggy in the version of the tools used in a build environment. Missing utilities and incorrectly set makefile configuration options can also result in different\r
+ * errors being produced when compilation or other operations are attempted. The table below lists a set of commonly encountered errors and their resolutions.\r
+ *\r
+ * <table>\r
+ * <tr>\r
+ * <th>Problem</th>\r
+ * <th>Resolution</th>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>relocation truncated to fit: R_AVR_13_PCREL against symbol <i>{X}</i></tt></b>" shown when compiling.</td>\r
+ * <td>Try compiling with the setting <tt>LINKER_RELAXATIONS=N</tt> in your LUFA Build System 2.0 makefile, or remove the line <tt>-Wl,--relax</tt>\r
+ * from other makefiles. Alternatively, make sure you have the latest version of the Atmel Toolchain installed for your system.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>error: ld terminated with signal 11 [Segmentation fault]</tt></b>" shown when compiling.</td>\r
+ * <td>Try compiling with the setting <tt>DEBUG_LEVEL=2</tt> in your LUFA Build System 2.0 makefile, or make sure you are using <tt>binutils</tt> version 2.22 or later.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>EMERGENCY ABORT: INFINITE RECURSION DETECTED</tt></b>" shown when compiling.</td>\r
+ * <td>Make sure you are using an up to date version of GNU Make when compiling. This error is a safety system added to the mid-level makefiles, to prevent an issue with\r
+ * GNU make or other variants of Make causing an infinitely recursive build.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>Unsupported architecture "<i>{X}</i>"</tt></b>" shown when compiling.</td>\r
+ * <td>Ensure your makefile's <tt>ARCH</tt> setting is set to one of the architecture names (case-sensitive) supported by the version of LUFA you are compiling against.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>Makefile <i>{X}</i> value not set</tt></b>" shown when compiling.</td>\r
+ * <td>The specified Makefile value was not configured in your project's makefile or on the command line, and the nominated setting is required by one or more LUFA\r
+ * build system modules. Define the value in your project makefile and try again.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>Makefile <i>{X}</i> option cannot be blank</tt></b>" shown when compiling.</td>\r
+ * <td>The specified Makefile value was configured in your project's makefile or on the command line, but was set to an empty value. For the nominated configuration\r
+ * option, an empty value is not allowed. Define the nominated setting to a correct non-blank value and try again.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>Makefile <i>{X}</i> option must be Y or N</tt></b>" shown when compiling.</td>\r
+ * <td>The specified Makefile value was configured in your project's makefile or on the command line, but was set to a value other than a Y (for "Yes") or "N" (for "No").\r
+ * This configuration option is required to be one of the aformentioned boolean values, and other values are invalid. Set this option to either Y or N and try again.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>Unknown input source file formats: <i>{X}</i></tt></b>" shown when compiling.</td>\r
+ * <td>The nominated source files, specified in your project's makefile in the <tt>SRC</tt> configuration option, has an extension that the LUFA build system does not\r
+ * recognise. The file extensions are case sensitive, and must be one of the supported formats (<tt>*.c</tt>, <tt>*.cpp</tt> or <tt>*.S</tt>).</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>Cannot build with OBJDIR parameter set - one or more object file name is not unique</tt></b>" shown when compiling.</td>\r
+ * <td>When a project is built with a non-empty <tt>OBJDIR</tt> object directory name set, all input source files must have unique names, excluding extension and path.\r
+ * This means that input files that are named identically and differ only by their path or extension are invalid when this mode is used.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>Source file does not exist: <i>{X}</i></tt></b>" shown when compiling.</td>\r
+ * <td>The nominated input source file, specified in the user project's <tt>SRC</tt> parameter, could not be found. Ensure the source file exists and the absolute or\r
+ * relative path given in the user project makefile is correct and try again.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>Doxygen configuration file <i>{X}</i> does not exist</tt></b>" shown when upgrading a Doxygen configuration file.</td>\r
+ * <td>The nominated Doxygen configuration file, specified in the user project's <tt>DOXYGEN_CONF</tt> parameter, could not be found. Ensure the configuration file exists\r
+ * and the absolute or relative path given in the user project makefile is correct and try again, or run the appropriate makefile target to generate a new configuration\r
+ * file.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>avr-gcc: error: unrecognized option '<i>{X}</i>'</tt></b>" shown when compiling.</td>\r
+ * <td>An unrecognised option was supplied to the compiler, usually in the <tt>C_FLAGS</tt>, <tt>CPP_FLAGS</tt>, <tt>ASM_FLAGS</tt> or <tt>CC_FLAGS</tt> configuration\r
+ * options. The nominated compiler switch may be invalid, or unsupported by the version of AVR-GCC on the host system. Remove the unrecognised flag if invalid, or\r
+ * upgrade to the latest AVR-GCC. If the option is a valid linker option, use the prefix "-Wl," to ensure it is passed to the linker correctly.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>makefile:{X}: {Y}.mk: No such file or directory</tt></b>" shown when make is invoked.</td>\r
+ * <td>The path to the nominated makefile module was incorrect. This usually indicates that the makefile <tt>LUFA_PATH</tt> option is not set to a valid relative or\r
+ * absolute path to the LUFA library core.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>fatal error: LUFAConfig.h: No such file or directory</tt></b>" shown when compiling.</td>\r
+ * <td>The <tt>USE_LUFA_CONFIG_HEADER</tt> compile time option was set in the user project makefile, but the user supplied <tt>LUFAConfig.h</tt> header could not be\r
+ * found. Ensure that the directory that contains this configuration file is correctly passed to the compiler via the -I switch in the makefile <tt>CC_FLAGS</tt>\r
+ * parameter.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>ld.exe: section .apitable_trampolines loaded at <i>{X}</i> overlaps section .text</tt></b>" shown when compiling a bootloader.</td>\r
+ * <td>The bootloader is compiling too large for the given <tt>FLASH_SIZE_KB</tt> and <tt>BOOT_SECTION_SIZE_KB</tt> parameters set in the bootloader makefile. This\r
+ * usually indicates that these values are incorrect for the specified device the bootloader is targeting. If these values are correct, a newer version of the\r
+ * compiler may need to be used to ensure that the bootloader is built within the section size constraints of the target device.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>unknown MCU '<i>{X}</i>' specified</tt></b>" shown when compiling.</td>\r
+ * <td>The specified micocontroller device model name set in the user application's makefile as the <tt>MCU</tt> parameter is incorrect, or unsupported by the\r
+ * version of the compiler being used. Make sure the model name is correct, or upgrade to the latest Atmel Toolchain to obtain newer device support.</td>\r
+ * </tr>\r
+ * <tr>\r
+ * <td>Error "<b><tt>undefined reference to `<i>{X}</i>'</tt></b>" shown when compiling.</td>\r
+ * <td>This is usually caused by a missing source file in the user application's <tt>SRC</tt> configuration parameter. If the indicated symbol is one from the LUFA\r
+ * library, you may be missing a LUFA source makefile module (see \ref Page_BuildModule_SOURCES).</td>\r
+ * </tr>\r
+ * </table>\r
+ *\r
+ * For troubleshooting other errors you encounter, please see \ref Sec_ProjectHelp.\r
+ */\r
projects / pub / USBasp.git / blobdiff