tree fbc2850a9e364278843141b19445aa1ed1a0796c
parent 0076f58d5333f24f709aa46b4bad760ffb51b9b0
parent 1091eee65b91a9968f2a0b2f0c7d6e8e27d8d033
author bors <bors@rust-lang.org> 1544663533 +0000
committer bors <bors@rust-lang.org> 1544663533 +0000

Auto merge of #55982 - alexcrichton:panic-extern-abort, r=zackmdavis

rustc: Switch `extern` functions to abort by default on panic

This was intended to land way back in 1.24, but it was backed out due to
breakage which has long since been fixed. An unstable `#[unwind]`
attribute can be used to tweak the behavior here, but this is currently
simply switching rustc's internal default to abort-by-default if an
`extern` function panics, making our codegen sound primarily (as
currently you can produce UB with safe code)

Closes #52652