Thomas Seeling wrote:
Hallo,
I rebuilt LFS from SVN with kernel 4.15 gcc 7.3 on i686.
# head -n7 /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Pentium(R) 4 CPU 3.20GHz
stepping : 9
microcode : 0x3
PTI offers mitigation against Meltdown, retpoline against Spectre v2.
Basic LFS compiles fine with book settings, apart from grub where a
minimal change was required in the final build of binutils 2.30. I admit
I simply hacked the script 082-binutils in lfs-commands to achieve that.
configure needs the following switch on 32 bit systems:
--enable-64-bit-bfd
Thomas, Have you tested you built grub? When I investigate the
enable-64-bit-bfd option, the comment I see is "64-bit support (on hosts
with narrower word sizes)" I am thinking about adding this
unconditionally, but am a bit concerned that grub will try to run 64-bit
code on a 32-bit system (and crash). I'm not sure that adding the option
to a normal 64-bit build will hurt anyting, but I'll test that.
-- Bruce
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