Appendix A. Sourcery CodeBench Lite Release Notes

This appendix contains information about changes in this release of Sourcery CodeBench Lite for ARM EABI. You should read through these notes to learn about new features and bug fixes.

Table of Contents

A.1. Changes in Sourcery CodeBench Lite for ARM EABI

A.1. Changes in Sourcery CodeBench Lite for ARM EABI

This section documents Sourcery CodeBench Lite changes for each released revision.

A.1.1. Changes in Sourcery CodeBench Lite 2014.05-28

-fuse-caller-save fix.  A bug in -fuse-caller-save that caused the compiler to generate incorrect code has been fixed.

Instrumentation bug fix.  A bug that caused GCC to instrument functions tagged with __attribute__((no_instrument_function)) when compiling with -fprofile-arcs has been fixed.

GCC version 4.8.3 prerelease.  Sourcery CodeBench Lite for ARM EABI is now based on a GCC 4.8.3 prerelease snapshot from Mar 20th, 2014, SVN revision 208690. This version includes numerous other bug fixes. For more information about changes from GCC version 4.8.1 that was included in previous releases, see http://gcc.gnu.org/gcc-4.8/changes.html.

-Weffc++ and -Wnon-virtual-dtor interaction.  The two C++ warning options -Weffc++ and -Wnon-virtual-dtor have been updated to interoperate correctly and warn about the lack of virtual destructors only in polymorphic classes.

Binutils update.  The binutils package has been updated to version 2.24.51.20140217 from the FSF trunk, git revision 024a23103f04282872d4352302b1bfe04391a7a4. This update includes numerous bug fixes.

Mentor CDDA7 Virtual Target and Mentor CDDA15 Virtual Target support.  Sourcery CodeBench Lite now supports the Mentor CDDA7 Virtual Target and Mentor CDDA15 Virtual Target.

Altera Cyclone V memory map fix.  The memory map provided by CS3 for the Altera Cyclone V development board has been corrected.

Fix for sbrk A bug in CS3 that caused sbrk to fail on targets with more than 2GB of RAM has been fixed.

GDB memory manipulation fix.  A bug has been fixed that caused GDB to read incorrect contents from breakpoint addresses, leading to unpredictable behavior and erroneous backtraces.

Fix for GDB crashes.  GDB has been made more robust to handle executables with incorrect DWARF-2 .debug_line information. Previously, GDB crashed on programs that referenced missing include directory information.

GDB packet warning fix.  A bug has been fixed that formerly caused GDB to display an invalid packet warning after interrupting applications using semihosted I/O.

GDB update.  The version of GDB has been updated to 7.7.50-cvs, git revision 024a23103f04282872d4352302b1bfe04391a7a4. This update adds numerous bug fixes and features. Refer to http://www.gnu.org/software/gdb/news for more information.

Installer help.  The installer now displays help on Microsoft Windows hosts when invoked from the command line with the --help option. Formerly, this command-line option only worked on GNU/Linux hosts.

Installer error dialog.  On Microsoft Windows hosts the installer now displays an error dialog during a GUI installation if a fatal error occurs.

Installer logging improved.  The installer now logs information related to the progress of the installation and also errors when it fails to start.

Installer 32-bit library detection.  The installer checks for required 32-bit compatibility libraries on supported 64-bit GNU/Linux hosts.

Microsoft Windows XP host no longer supported.  The minimum required Microsoft Windows OS needed to run Sourcery CodeBench Lite is now Windows Vista.

Installer disk space calculation.  The installer for GNU/Linux hosts now correctly calculates the temporary disk space required.

Installer temp path.  The installer now allows you to change the directory where it is extracted using the P2_INSTALLER_TEMP_PATH environment variable. See Section 2.4, “Installing Sourcery CodeBench Lite”.

Compile caching now works on Windows XP.  A bug has been fixed that made compile caching incompatible with Microsoft Windows versions prior to Vista.

A.1.2. Changes in Sourcery CodeBench Lite 2013.11-24

GCC -fremove-local-statics option.  GCC no longer supports the -fremove-local-statics command-line option. The optimizations formerly controlled by this option are now carried out automatically by other optimization passes.

GCC version 4.8.1.  Sourcery CodeBench Lite for ARM EABI is now based on GCC version 4.8.1. For more information about changes from GCC version 4.7 that was included in previous releases, see http://gcc.gnu.org/gcc-4.8/changes.html.

Incorrect optimization fix.  A bug in GCC that caused it to generate wrong code for some conditionally-executed statements has been fixed.

Binutils update.  The binutils package has been updated to version 2.23.52.20130912 from the FSF trunk. This update includes numerous bug fixes.

Improved support for STMicroelectronics STM32F1xx devices.  Peripheral register browsing information for STMicroelectronics STM32F100xx, STM32F101xx, STM32F102xx, STM32F103xx, STM32F105xx, and STM32F107xx devices have been updated to the latest released information from ARM.

Altera Cyclone V support.  Sourcery CodeBench Lite now includes support for the Altera Cyclone V development board.

Improved support for STMicroelectronics STM32F4xxxx devices.  CS3 now provides peripheral register browsing information to the debugger for STMicroelectronics STM324F40x, STM32F41x, STM32F427x, and STM32F437x devices.This allows the user to view peripheral register values during program debugging.

Stellaris reset bug fix.  A bug in the CS3 reset sequence for the Stellaris EKC-LM3S9D90 and EKC-LM3S9D92 platforms that caused ROM to be mapped to address 0x0 after reset has been fixed.

Changed the CS3 API for passing arguments to main CS3 now requires that the function that initializes arguments passed to main be named __cs3_init_args. See Section 5.2.3, “The C Initialization Phase” for details.

Newlib crash fix.  A bug that caused Newlib to sometimes crash when used with a C++ program that has more than 31 static objects has been fixed.

Newlib update.  The Newlib package has been updated to version 2.0.0, with additions from the community CVS trunk as of 2013-07-06. This update provides various C99/POSIX cleanups along with other bug fixes and enhancements.

GDB update.  The version of GDB has been updated to 7.6.50.20130726-cvs. This update adds numerous bug fixes and features. Refer to http://www.gnu.org/software/gdb/news for more information.

Improved GDB diagnostic.  GDB now issues an error message when an invalid option is passed to the add-symbol-file command.

GDB support for removing symbols.  GDB now supports the remove-symbol-file command. Refer to the GDB manual for full documentation.

New GDB command.  GDB now supports the remove-symbol-file command.

Compile caching on Windows hosts.  Compile caching is now available on both Linux and Windows hosts.

cs-rm -f bug fix.  A bug that caused cs-rm -f on Windows hosts to incorrectly issue an error when passed a glob pattern that matched nothing has been fixed.

New installer.  The installer has changed. Please refer to Section 2.4, “Installing Sourcery CodeBench Lite” for more details. Previous versions of Sourcery CodeBench Lite cannot be updated. You must uninstall the previous version or choose a different directory during installation.

A.1.3. Changes in Sourcery CodeBench Lite 2013.05-23

GCC version 4.7.3.  Sourcery CodeBench Lite for ARM EABI is now based on GCC version 4.7.3. This update incorporates numerous bug fixes. For more information, see http://gcc.gnu.org/gcc-4.7/changes.html.

Installer warnings fixed.  A bug that caused Gtk warnings relating to libappmenu.so when running the installer on 64-bit Ubuntu GNU/Linux hosts has been fixed.

A.1.4. Changes in Sourcery CodeBench Lite 2013.05-4

C++ fix for ARMv6-M.  A bug that prevented C++ multiple inheritance from working in position-independent code compiled for ARMv6-M has been fixed.

Multilib selection bug fix.  A compiler bug that caused the wrong multilib to be chosen when compiling with -mthumb -mcpu=cortex-m4 -mfloat-abi=softfp has been fixed.

Pointer comparison bug fixed.  A bug in GCC that caused it to incorrectly optimize away a pointer comparison has been fixed.

Incorrect optimization bug fix.  A compiler bug has been fixed that caused incorrect code to be generated for some comparisons unless optimization was suppressed with -fno-forward-propagate.

Performance regression fixed.  A bug that introduced unnecessary instructions to zero-extend unsigned char or short values has been fixed.

Linker raw binary input crash fix.  A bug that caused the linker to crash when linking binary inputs (--format=binary) while using --gc-sections has been fixed.

Linker assertion failure fix.  A linker bug has been fixed that caused an assertion failure when linking unoptimized code using thread-local storage.

ldralt assembly bug fix.  A bug that caused the assembly of ldralt instructions to sometimes produce the error message selected processor does not support ARM mode has been fixed.

Binutils update.  The binutils package has been updated to version 2.23.52.20130219 from the FSF trunk. This update includes numerous bug fixes.

GDB hang fix.  A bug that caused GDB to sometimes hang when setting a breakpoint has been fixed.

A.1.5. Changes in Older Releases

For information about changes in older releases of Sourcery CodeBench Lite for ARM EABI, please refer to the Getting Started guide packaged with those releases.