In compile-and-link mode, the user doesn't specify the name of the
object files to generate, because there could be multiple inputs
on a single command line and this would be hard to specify. So the
script just tries to be smart and figure out the best object file
names. However, if two build scripts are running in parallel and
using the same source files as input, they would previously race
to write the same object files, since the computed name only considered
the source file names when computing the object file names.
With this patch, we also consider the final executable name. In a
way, this "namespaces" the generated object files so that as long
as the final executable file names don't clash, the intermediate
object file names won't clash either.
llvm-svn: 348511
This makes -mode=compile support multiple inputs (and hence
multiple outputs).
It also makes the value of -arch for compiling inferiors default
to the architecture that LLDB is built in. This can still be
overridden however.
Differential Revision: https://reviews.llvm.org/D55230
llvm-svn: 348305
Zachary Turner