http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55556
Bug #: 55556
Summary: gcc/exec-tool.in isn't parallel build safe in combined
tree
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: hjl.to...@gmail.com
When bootstrap GCC and binutils in a combined-tree,
prev-gcc/as has
ORIGINAL_AS_FOR_TARGET="../gas/as-new"
...
dir=gas
prog=as-new
if test -x $scriptdir/../$dir/$prog; then
exec $scriptdir/../$dir/$prog
else
exec $scriptdir/../prev-$dir/$prog
fi
When we are building gas parallel with bintils,
gold, gprof and ld, we may run into race condition
that prev-gcc/as checks ../gas/as-new at the same
time when we are creating it.
