Kinetis Design Studio中的主题 Re: Compiler flags question

Compiler flags question

giacomopetrini — Thu, 05 Feb 2015 10:37:08 GMT

Hello all,

I'm playign aroung with compiler flags (using KDS 2.0.0) to see how this impacts on code size/performances/etc.

One question (I'm using C++):

- what is ABI version? What setting should I use? It is safe to go to the maximum (7) or is best to keep the toolchain default (2) or set for the most conforming (0) ?

Regards Giacomo

A note for developers: if I set the optimization level to -O3 there are error at runtime, more specifically the "assert(irq & SDHC_HAL_CMD_ALL_INT);" in SDHC_DRV_CmdIrq() (fsl_sdhc_driver.c, KSDK 1.1).

Re: Compiler flags question

ZhangJennie — Mon, 09 Feb 2015 08:50:27 GMT

hi giacomopertrini,

Freescale has document

{KDS_2.0.0 install}\doc\pdf\gcc\gcc\gcc.pdf document related information.

see chapter 9:

the different ABI version description is listed here:

can this help?

Have a great day,
Zhang Jun

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