Appendix A. Sourcery CodeBench Lite Release Notes

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.

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.

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.

Code size optimization improvement.  When compiling with -Os or -O2 and higher GCC no longer enables the -funroll-loops option by default. This change reduces the size of optimized code produced by Sourcery CodeBench and brings its behavior back into conformance with other GCC distributions. For more information about the tradeoffs between optimizing for size versus speed please see the Sourcery CodeBench Knowledge Base .

Loop optimization bug fix.  A compiler bug that caused some forms of loop to be mis-optimized when using the -fpromote-loop-indices option (enabled by default when optimizing for speed) has been fixed.

Wrong-code bug fix.  A bug in GCC's scheduler has been fixed that sometimes caused incorrect code to be generated.

GDB simulator removed.  The built-in ARM processor simulator has been removed from the debugger. The stand-alone arm-none-eabi-run executable has also been removed.

Updated system requirements.  The host operating system requirements for Sourcery CodeBench Lite have been updated. The minimum versions of GNU/Linux now supported are Red Hat Enterprise Linux 5, SuSE Enterprise Linux 10, Fedora Core 6, Ubuntu 8.04, and Debian 5, or later versions of these distributions running on 32-bit or 64-bit Intel or AMD CPUs.

GCC version 4.7.2.  Sourcery CodeBench Lite for ARM EABI is now based on GCC version 4.7.2. For more information about changes from GCC version 4.6 that was included in previous releases, see http://gcc.gnu.org/gcc-4.7/changes.html.

Select correct multilib for -mcpu=cortex-a15 .  A GCC bug has been fixed that caused an incorrect multilib to be selected when compiling with -mcpu=cortex-a15.

Incorrect warnings for naked functions fixed.  A bug in the C++ compiler has been fixed that caused it to incorrectly warn about missing return statements in functions with the naked attribute, which can only include inline assembly statements.

Linker script symbols.  The linker now supports a new HIDDEN keyword to define symbols with object scope. Refer to the linker manual for details.

Binutils version 2.23.  Sourcery CodeBench Lite for ARM EABI is now based on binutils version 2.23.

Fix for interrupts on Cortex-M3.  A bug in CS3 has been fixed that caused errors while linking RAM-profile applications using interrupts for Cortex-M3 targets.

Support for Xilinx ZC702 Evaluation Kit.  Sourcery CodeBench Lite now includes support for creating and debugging of applications for the Xilinx Zynq-7000 EPP ZC702 Evaluation Kit.

GDB update.  The included version of GDB has been updated to 7.4.50.20120716. This update adds numerous bug fixes and features. Refer to http://www.gnu.org/software/gdb/news for more information.

Removal of the Sourcery CodeBench Debug Sprite.  The Sourcery CodeBench Debug Sprite has been removed.

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.