CS+ RH850 Compiler CC-RH V1.03.00 Release Note
Contents
1. CENESAS CS RH850 Compiler CC RH V1 03 00 R20UT3518EJ0100 Rev 1 00 Release Note September 18 2015 Thank you for using the CS integrated development environment This document describes the restrictions and points for caution Read this document before using the product Contents Chapter Target Devicesssisscsisccccciecicatitisitice ce tethic tdeeshecteci edi ANNEV EEU VE DEPE IN TOS NI ANVE EEVUE DEE PTS 2 Chapter 2 Users Manuals essssssssessossossoesesessesssssesessssessssssssssssssssssosssssssstsssssssssssssssssssssssssssssssissss 3 Chapter 3 Keywords When Uninstalling the Product ccccccsssssssscceeccsesssssnnsscceecesessssnseeeeeesesees 4 Chapter 4 Chan ges iiis v sssiscesissiisossesssevssssvevsvesvevvcssvsslevstevevevsssvvvvssvedeececdcssivssbesevevsevvvvessecdeveesdevdvvvvevses 5 4 1 Changes to the CC RH compiler ccccccccccccecsssssseceeececsessacceceeecsesesseseeececeeeessaeeeeeeecsenestaees 5 4 1 1 Standard and Professional CAitiONS scccsssccssscecsssccsnsscssneecssscecsusstsnsssssneecsunestnssssssesaneesesees 5 41 2 Support for the GKH CPG icicsssscsccesvacsccessasicceevaliccesvaciccgevasiecssvasicteevaliceesvissceaseacscceseaciceeevassis 5 41 8 Hin hanGed Xalign4 opon marae in E a aa E a aE E A EE AEE e a aS 5 4 1 4 ORC calculation ssiirsensririiiis inii isni E EE EEE RE E TO 6 4 1 5 Extension to the Xpatch Option csscrsccccccccssssssssscccccecsssssnsnscesecssssssnssnscsseessesssn2. malfunctions under certain use conditions Further Renesas Electronics products are not subject to radiation resistance design Please be sure to implement safety measures to guard them against the possibility of physical injury and injury or damage caused by fire in the event of the failure of a Renesas Electronics product such as safety design for hardware and software including but not limited to redundancy fire control and malfunction prevention appropriate treatment for aging degradation or any other appropriate measures Because the evaluation of microcomputer software alone is very difficult please evaluate the safety of the final products or systems manufactured by you 8 Please contact a Renesas Electronics sales office for details as to environmental matters such as the environmental compatibility of each Renesas Electronics product Please use Renesas Electronics products in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances including without limitation the EU RoHS Directive Renesas Electronics assumes no liability for damages or losses occurring as a result of your noncompliance with applicable laws and regulations 9 Renesas Electronics products and technology may not be used for or incorporated into any products or systems whose manufacture use or sale is prohibited under any applicable domestic or foreign laws or regulations You should not use Renesas Electronics products or
3. s Manual CC RH Build Tool Operation eee eee ee R20UT3518EJ0100 Rev 1 00 RENESAS Page 3 of 9 September 18 2015 CS CC RH V1 03 00 Release Note Chapter 3 Keywords When Uninstalling the Product There are two ways to uninstall this product e Use the integrated uninstaller uninstalls all CS components e Use the Windows uninstaller only uninstalls this product To use the Windows uninstaller select CS CC RH V1 03 00 from Programs and Features of the control panel R20UT3518EJ0100 Rev 1 00 RENESAS Page 4 of 9 September 18 2015 CS CC RH V1 03 00 Release Note Chapter 4 Changes This chapter describes changes to the CC RH compiler 4 1 Changes to the CC RH compiler This section describes changes to the CC RH compiler from V1 02 00 to V1 03 00 4 1 1 Standard and Professional editions The CC RH complier has the following two editions Standard edition Professional edition The features of the latter can only be used if the compiler is registered under the professional license They are indicated as Professional from here on 4 1 2 Support for the G3KH core g3kh is specifiable as the argument of the Xcpu option When the Xcpu g3kh option is specified the generated code is for the instruction set of the G3KH FPU instructions are generated from floating point operations for single precision arithmetic and instructions to call runtime functions are generated from those for double
4. these options to statically check source code makes improving the quality of user programs in early stages possible 4 1 10 Detection of stack smashing Professional A feature for the detection of stack smashing has been added This feature can be realized by the Xstack_protector Xstack_protector_all compiler options or the extended language specification pragma stack_protector pragma no_stack_protector This feature generates the codes which detect stack smashing at the entry and exits of functions Specifically instructions to execute the following three processes are produced 1 4 byte immediately before upper direction the local variable area of the stack frame are allocated at the entrance to the function and the values specified with the option are stored there 2 A check is run on whether the value which was stored in step 1 has not been changed at the end of the function 3 The __stack_chk_fail function is called when the value has been changed which would lead to smashing the stack The __stack_chk_fail function is defined by user and describes the processing to be executed when stack smashing is detected For example the __stack_chk_fail function will be executed when the following code which smashes the stack area is executed 1 void f1 volatile char str 10 int i for i 0 i lt 10 i str i i The stack is smashed when i 10 6 This feature is an active check that can provide a s
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7. beginning of interrupt functions of the types described below The interrupt specification for a pragma interrupt directive includes any of priority S YSERR FPI FENMI FEINT EIINT_PRIORITYX X 0 to 15 or a channel is specified for the interrupt function When both Xcpu g3m option and Xpatch switch option are specified it may lead to the generation of code using switch instructions Switch instructions will not be used unless this option is specified R20UT3518EJ0100 Rev 1 00 September 18 2015 RENESAS Page 6of9 CS CC RH V1 03 00 Release Note 4 1 6 Removal of notes Five notes on using CC RH below have been removed Designating immediate values as the operands of assembly instructions No 2 Definition of and reference to a label being in the same assembly unit No 3 Omitting base registers in assembly instructions No 4 Assembly statements not in accord with the specification No 5 Optimization of access to external variables placing them over a 4 Mbyte or greater range of addresses No 6 4 1 7 Other changes and improvements Other major changes and improvements are described below a Improved debugging information Unnecessary debugging information was deleted to reduce the sizes of object files obj and load module files abs Changes to the specification of section operators The ability to specify non existent sections for the section operators STARTOF and SIZEOF has been ad
8. ded to the assembler Note The name of the operators is section aggregation operators in V1 01 00 and earlier versions In V1 02 00 the name has been changed to section operators Change to a specification of inline assembler The availability to select whether subsequent instructions are expanded or not by using the assembler control instructions MACRO NOMACRO in inline assembler declared under pragma inline_asm has been added Subsequent instructions are not expanded in inline assembler by default Improved prevention of internal errors The prevention of compiler internal errors during building has been improved R20UT3518EJ0100 Rev 1 00 RENESAS Page 7 of 9 September 18 2015 CS CC RH V1 03 00 Release Note 4 1 8 Checking of source code against MISRA C 2004 rules Professional The following options can only be used if the compiler is registered under the professional license Xmisra2004 Xignore_files_misra Xcheck_language_extension 4 1 9 Checking of source code against MISRA C 2012 rules Professional A Xmisra2012 option which selects the checking of source code against the MISRA C 2012 rules has been added An Xignore_files_misra option for the selection of files that are not to be checked and a Xcheck_language_extension option which enables the source code checking which are partially suppressed by language extensions are specifiable at the same time as each other and Xmisra2012 Specifying
9. ecurity measure against stack overflow and thus preventing attacks R20UT3518EJ0100 Rev 1 00 RENESAS Page 8 of 9 September 18 2015 CS CC RH V1 03 00 Release Note Chapter 5 Points for Caution This section describes points for caution regarding CC RH 5 1 FE level exceptions When a pragma interrupt directive is defined for the interrupt function for an FE level exception from which return or recovery is not possible i e when FENMI or SYSERR is designated as the priority the code for the exit from the interrupt function is not output This should be handled correctly in the program All trademarks and registered trademarks are the property of their respective owners R20UT3518EJ0100 Rev 1 00 RENESAS Page 9 of 9 September 18 2015 Notice 1 Descriptions of circuits software and other related information in this document are provided only to illustrate the operation of semiconductor products and application examples You are fully responsible for the incorporation of these circuits software and information in the design of your equipment Renesas Electronics assumes no responsibility for any losses incurred by you or third parties arising from the use of these circuits software or information 2 Renesas Electronics has used reasonable care in preparing the information included in this document but Renesas Electronics does not warrant that such information is error free Renesas Electronics assumes no liability what
10. me systems and safety equipment etc Renesas Electronics products are neither intended nor authorized for use in products or systems that may pose a direct threat to human life or bodily injury artificial life support devices or systems surgical implantations etc or may cause serious property damages nuclear reactor control systems military equipment etc You must check the quality grade of each Renesas Electronics product before using it in a particular application You may not use any Renesas Electronics product for any application for which it is not intended Renesas Electronics shall not be in any way liable for any damages or losses incurred by you or third parties arising from the use of any Renesas Electronics product for which the product is not intended by Renesas Electronics 6 You should use the Renesas Electronics products described in this document within the range specified by Renesas Electronics especially with respect to the maximum rating operating supply voltage range movement power voltage range heat radiation characteristics installation and other product characteristics Renesas Electronics shall have no liability for malfunctions or damages arising out of the use of Renesas Electronics products beyond such specified ranges 7 Although Renesas Electronics endeavors to improve the quality and reliability of its products semiconductor products have specific characteristics such as the occurrence of failure at a certain rate and
11. precision arithmetic 4 1 3 Enhanced Xalign4 option The Xalign4 option has been enhanced When the Xalign4 option was specified in V1 02 00 only the addresses where functions started were aligned with 4 byte boundaries On the other hand the format of the specification has become Xalign4 mode in V1 03 00 Any of the modes listed below are specifiable as mode If the specification is omitted only the address where the function starts will be aligned with a 4 byte boundary Aligning more items with 4 byte boundaries may increase the speed of execution but will also increase the size in ROM mode Description function Addresses where functions start are aligned with 4 byte boundaries loop Addresses where functions and loops start are aligned with 4 byte boundaries Addresses where functions and innermost loops start are aligned with 4 byte innermostloop boundaries l Addresses where functions start and branch destination addresses are aligned with a 4 byte boundaries R20UT3518EJ0100 Rev 1 00 RENESAS Page 5 of 9 September 18 2015 CS CC RH V1 03 00 4 1 4 CRC calculation Release Note The CRC linker option which performs a CRC Cyclic Redundancy Check calculation and places the result at a specified address has been added Any of the methods listed below is selectable as the method of calculation If no method is specified the operation will be executed as 32 ETHERNET Method Desc
12. ription The result of calculation is obtained by applying CRC 16 CCITT to the CCITT input MSB first with the initial value of the result being OxFFFF and XOR inversion 46 CCITT MSB The result of calculation is obtained by applying CRC 16 CCITT to the input MSB first 16 CCITT MSB LITTLE 4 The input is a 4 byte unit with little endian The result of calculation is obtained by applying CRC 16 CCITT to the input MSB first 16 CCITT MSB LITTLE 2 obtained by applying CRC 16 CCITT to the input MSB first The input is a 2 byte unit with little endian The result of calculation is The result of calculation is obtained by applying CRC 16 CCITT to the OTE input LSB first 16 The result of calculation is obtained by applying CRC 16 to the input LSB first The input is 1 byte with the higher and lower order 4 bit units in little SENT MSB endian The result of calculation on the input MSB first is obtained with SENT compliance 32 ETHERNET The result of calculation is obtained by applying CRC 32 ETHERNET to the input The initial value of the result is OXFFFFFFFF and is XOR inverted and the bit order is reversed 4 1 5 Extension to the Xpatch option The Xpatch option has been extended to enable the specification of syncp and switch as an argument for the microcomputer which loads the G3M core When both Xcpu g3m option and Xpatch syncp option are specified a syncp instruction is inserted at the
13. soever for any damages incurred by you resulting from errors in or omissions from the information included herein 3 Renesas Electronics does not assume any liability for infringement of patents copyrights or other intellectual property rights of third parties by or arising from the use of Renesas Electronics products or technical information described in this document No license express implied or otherwise is granted hereby under any patents copyrights or other intellectual property rights of Renesas Electronics or others 4 You should not alter modify copy or otherwise misappropriate any Renesas Electronics product whether in whole or in part Renesas Electronics assumes no responsibility for any losses incurred by you or third parties arising from such alteration modification copy or otherwise misappropriation of Renesas Electronics product 5 Renesas Electronics products are classified according to the following two quality grades Standard and High Quality The recommended applications for each Renesas Electronics product depends on the product s quality grade as indicated below Standard Computers office equipment communications equipment test and measurement equipment audio and visual equipment home electronic appliances machine tools personal electronic equipment and industrial robots etc High Quality Transportation equipment automobiles trains ships etc traffic control systems anti disaster systems anti cri
14. ssasseseesensnsnsasees 6 ATG Removal OF NOLES wscsisssacscsdsvacecessiicsccasvaciccssuacidsassanicaaptaviccssvaciccasvasicdesvaiedaptavibinsveddcopeasictasasi c 7 4 1 7 Other Changes And improvements ccssccccssssecccsessccccssnsscecssssssessssussecssssssessessssecssssssessessssecsenses 7 4 1 8 Checking of source code against MISRA C 2004 rules Professional c1ccccccccseesesseveesevees 8 4 1 9 Checking of source code against MISRA C 2012 rules Professional c cccccccsecsesseseesevees 8 41 10 Detection of stack smashing Professional osssccssssosescsserssissssensssierosssessrssessisnnvensssonssessievesee 8 Chapter 5 Points for Caution ciicisscccicvseviavcisessscctveateaseesetes ceisasettessuaasbsssevscueesbuscasbvnsvelosesucsenevsuibeneusanes 9 5 1 FEB level xGeptiOns reiten a Coadasn deeds Gang Clabadns eave Gas eaubaans thts Heed debedns ds a deaebeans heeded 9 R20UT3518EJ0100 Rev 1 00 RENESAS Page 1 of 9 September 18 2015 CS CC RH V1 03 00 Release Note Chapter 1 Target Devices The target devices supported by the CC RH compiler are listed on the Website Please see the URL below CS Product Page http www renesas com cs R20UT3518EJ0100 Rev 1 00 RENESAS Page 2 of 9 September 18 2015 CS CC RH V1 03 00 Release Note Chapter 2 User s Manuals Please read the following user s manuals along with this document CC RH Compiler User s Manual R20UT3516EJ0100 CS Integrated Development Environment User
15. technology described in this document for any purpose relating to military applications or use by the military including but not limited to the development of weapons of mass destruction When exporting the Renesas Electronics products or technology described in this document you should comply with the applicable export control laws and regulations and follow the procedures required by such laws and regulations 10 It is the responsibility of the buyer or distributor of Renesas Electronics products who distributes disposes of or otherwise places the product with a third party to notify such third party in advance of the contents and conditions set forth in this document Renesas Electronics assumes no responsibility for any losses incurred by you or third parties as a result of unauthorized use of Renesas Electronics products 11 This document may not be reproduced or duplicated in any form in whole or in part without prior written consent of Renesas Electronics 12 Please contact a Renesas Electronics sales office if you have any questions regarding the information contained in this document or Renesas Electronics products or if you have any other inquiries Note 1 Renesas Electronics as used in this document means Renesas Electronics Corporation and also includes its majority owned subsidiaries Note 2 Renesas Electronics product s means any product developed or manufactured by or for Renesas Electronics stENESAS SALES
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