https://sourceware.org/bugzilla/show_bug.cgi?id=26766
--- Comment #4 from Martin Liska <mliska at suse dot cz> --- > Please take a look at users/hjl/pgo-lto branch > > https://gitlab.com/x86-binutils/binutils-gdb/-/commits/users/hjl/pgo-lto > > If check-binutils check-gas check-ld training is good enough, I can drop > "make install" and "make check" steps. That's very promising! I have a couple of comments: 1) I would separate --enable-standalone-pgo-binutils=lto into 2 configuration options: --enable-lto and --enable-pgo-bootstrap 2) --enable-lto should add -flto=jobserver instead of -flto, but I noticed the following warning when doing that: lto-wrapper: warning: jobserver is not available: '--jobserver-auth=' is not present in 'MAKEFLAGS' That's likely cased by missing '+' as documented: You must prepend a ‘+’ to the command recipe in the parent Makefile for this to work. Can you please check it? 3) I would use only -fprofile-generate without an additional folder location; or do you see a .gcda file name clashing? 4) I can confirm that gas is trained well; I'm testing that for a Firefox LTRANS file (~100MB in size). Anyway, great progress you made. -- You are receiving this mail because: You are on the CC list for the bug.
