From: Adam F. <ada...@br...> - 2012-05-16 15:18:13
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As a followup... I have also compiled without: -fdata-sections -ffunction-sections and linked with --no-keep-memory -Wl,-gc-sections Having them on seems to make the code slightly smaller, but not much. adam On 05/16/2012 10:14 AM, Adam Ford wrote: > I'm sorry for bugging people, and I have Googled this question, but the > answers I'm finding are really old and I know there are updates to > mspgcc since most of the answers were posted.... > > I am trying to port 3 different programs from IAR to MSPGCC for work. > I'm using the latest released version, but 2 of the 3 won't fit even > when compiling using optimizations: -mmcu=$(MCU) -g -Os -Wall > -fdata-sections -ffunction-sections and linked with --no-keep-memory > -Wl,-gc-sections > > Does anyone have any ideas how I can further optimize the compiler > (other than rewriting - which I've been trying to do)? > > With an MSP430F149 processor, under IAR, the code compiles and links > (Code = 45858, data = 3000, CONST=4935) > > Under GCC, it won't link because '.rodata won't fit into region rom' and > rom overflows by 796 bytes. > > Examining the Map file shows .rodata is 0x1a66 in size, .text is 0xc240 > in size, .bss is 0x712 > > Any ideas how to make the libraries or optimizer make smaller code? > > adam > > This email, including any attachments and files transmitted with it, are for the sole use of the intended recipient(s) to whom this email is addressed, and may contain confidential and/or privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please be advised that you have received this email in error, and please contact the sender by reply email and destroy all copies (including all electronic and hard copies) of the original message. Thank you. > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Mspgcc-users mailing list > Msp...@li... > https://lists.sourceforge.net/lists/listinfo/mspgcc-users This email, including any attachments and files transmitted with it, are for the sole use of the intended recipient(s) to whom this email is addressed, and may contain confidential and/or privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please be advised that you have received this email in error, and please contact the sender by reply email and destroy all copies (including all electronic and hard copies) of the original message. Thank you. |