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bors 72c7b70267 Auto merge of #80838 - nagisa:nagisa/stack-probe-type, r=cuviper 
Target stack-probe support configurable finely

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.

Note that this removes the ability to turn off the generation of the
stack-probe attribute. This is valid to replace it with inline-asm for all targets because
`probe-stack="inline-asm"` will not generate any machine code on targets
that do not currently support stack probes. This makes support for stack
probes on targets that don't have any right now automatic with LLVM
upgrades in the future.

(This is valid to do based on the fact that clang unconditionally sets
this attribute when `-fstack-clash-protection` is used, AFAICT)

cc #77885
r? `@cuviper`
2021-01-24 09:44:42 +00:00
..
src Auto merge of #80838 - nagisa:nagisa/stack-probe-type, r=cuviper 2021-01-24 09:44:42 +00:00
Cargo.toml mv compiler to compiler/ 2020-08-30 18:45:07 +03:00
README.md mv compiler to compiler/ 2020-08-30 18:45:07 +03:00

README.md

librustc_target contains some very low-level details that are specific to different compilation targets and so forth.

For more information about how rustc works, see the rustc dev guide.