This results in MozillaFirefox and kernel-default/pae/... build failure on i586
(we use x86_64 kernel for building).

In the latter, pahole fails with for example like:
[  188s] ../scripts/link-vmlinux.sh: line 111: 16935 Segmentation fault     
LLVM_OBJCOPY="${OBJCOPY}" ${PAHOLE} -J ${PAHOLE_FLAGS} ${1}

strace says:
1223  mmap2(NULL, 5783552, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0 <unfinished ...>
...
1223  <... mmap2 resumed>)              = -1 ENOMEM (Cannot allocate memory)