> Is there a right way to pass additional compiler flags to the coreboot > makefiles? We've been working on making the Heads firmware reproducible > and found that the -fdebug-prefix-map option is necessary to deal with > different build directories. To make this work with coreboot we ended > passing in environment variables CFLAGS_x86_32 and *CFLAGS_x86_64*:
In other words, Trammel, you would like to say that you can compile Coreboot to be x86_64 compliant (64 bits Coreboot build)?! (forgive me for my ignorance?) Thank you, Zoran On Thu, Feb 2, 2017 at 8:37 PM, Trammell Hudson <hud...@trmm.net> wrote: > Is there a right way to pass additional compiler flags to the coreboot > makefiles? We've been working on making the Heads firmware reproducible > and found that the -fdebug-prefix-map option is necessary to deal with > different build directories. To make this work with coreboot we ended > passing in environment variables CFLAGS_x86_32 and CFLAGS_x86_64: > > EXTRA_FLAGS="-fdebug-prefix-map=`pwd`=. -gno-record-gcc-switches" > make CFLAGS_x86_32="$EXTRA_FLAGS" CFLAGS_x86_64="$EXTRA_FLAGS" > > Ideally coreboot could use this in its Makefile to avoid having any > build tree path dependencies included in the binary, although for now the > Heads build script passes in these extra flags to all of our dependencies. > > With this (and several other commits this week), Heads is now 100% > reproducible (tested on Ubuntu, Qubes' Fedora, and an ancient Debian): > > https://github.com/osresearch/heads/releases/tag/v0.1.0 > > -- > Trammell > > -- > coreboot mailing list: coreboot@coreboot.org > https://www.coreboot.org/mailman/listinfo/coreboot >
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