[coreboot-gerrit] Change in coreboot[master]: libpayload: Add support for link time optimization

[Jacob Garber (Code Review)]

Jacob Garber has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/38291 )

Change subject: libpayload: Add support for link time optimization
......................................................................

Patch Set 3:

(1 comment)

https://review.coreboot.org/c/coreboot/+/38291/3/payloads/libpayload/Makefil... 
File payloads/libpayload/Makefile.inc:

https://review.coreboot.org/c/coreboot/+/38291/3/payloads/libpayload/Makefil... 
PS3, Line 69: $(CPUS)
> Might be important if not all CPU cores are to be used when building this.

In GCC 10 LTO linking will automatically detect the number of available cores and do the linking in parallel (regardless of what was set using -j). This just copies that behaviour since it will become the default anyway. (I'm also not sure what the auto flag is. Were you thinking of jobserver?)

https://www.phoronix.com/scan.php?page=news_item&px=GCC-10-LTO-flto-Avai...