This patch updates sanitizier support definitions for Android inside the
compiler. It also adjusts the logic to make sure no pre-built sanitizer
runtime libraries are emitted as these are instead provided dynamically
on Android targets.
We had already reverted the change on stable back in PR #83412.
Since then, we've had some movement on issue #83139, but not a 100% fix.
But also since then, we had bug reported, issue #84667, that looks like outright
codegen breakage, rather than problems confined to debuginfo issues.
So we are reverting PR #77885 on stable and beta. We'll reland PR #77885 (or some
variant) switching back to an LLVM-dependent selection of out-of-line call vs
inline-asm, after these other issues have been resolved.
This adds capability to configure the target's stack probe support in a
more precise manner than just on/off. In particular now we allow
choosing between always inline-asm, always call or either one of those
depending on the LLVM version on a per-target basis.
Also change target_pointer_width to pointer_width.
Preparation for a subsequent type change of
target_pointer_width to an integer together with a rename
to pointer_width.
On its own, this commit breaks the build. I don't like making
build-breaking commits, but in this instance I believe that it
makes review easier, as the "real" changes of this PR can be
seen much more easily.
Result of running:
find compiler/rustc_target/src/spec/ -type f -exec sed -i -e 's/target_pointer_width: "\(.*\)"\..*,/pointer_width: \1,/g' {} \;
