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11 Commits

Author SHA1 Message Date
Josh Stone
ed9e6f2ad8 Enable inline stack probes on X86 with LLVM 16 2022-09-29 19:49:23 -07:00
Loïc BRANSTETT
ccff48f97b Replace every String in Target(Options) with Cow<'static, str> 2022-04-03 21:29:57 +02:00
Simonas Kazlauskas
9b67cba4f6 Add support for leaf fn frame pointer elimination 
This PR adds ability for the target specifications to specify frame
pointer emission type that's not just “always” or “whatever cg decides”.

In particular there's a new mode that allows omission of the frame
pointer for leaf functions (those that don't call any other functions).

We then set this new mode for Aarch64-based Apple targets.

Fixes #86196
 2021-06-30 19:45:17 +03:00
Luqman Aden
3221a5e65b Remove linker_is_gnu: true cases as that is now the default. 2021-05-20 23:36:04 -07:00
Felix S. Klock II
8d1083e319 Change to probe-stack=call (instead of inline-or-call) everywhere again, for now. 
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.
 2021-04-29 15:13:21 -04:00
Vadim Petrochenkov
cc5392e76b linker: Use data execution prevention options by default when linker supports them 2021-03-28 23:44:40 +03:00
Vadim Petrochenkov
6615ee89be linker: Use --as-needed by default when linker supports it 2021-03-28 01:49:15 +03:00
Simonas Kazlauskas
007080b607 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 on a per-target basis.
 2021-01-16 12:38:02 +02:00
Vadim Petrochenkov
dc004d4809 rustc_target: Rename some target options to avoid tautology 
`target.target_endian` -> `target.endian`
`target.target_c_int_width` -> `target.c_int_width`
`target.target_os` -> `target.os`
`target.target_env` -> `target.env`
`target.target_vendor` -> `target.vendor`
`target.target_family` -> `target.os_family`
`target.target_mcount` -> `target.mcount`
 2020-11-08 17:29:13 +03:00
Vadim Petrochenkov
d5fd31197f rustc_target: Move target_env from Target to TargetOptions 2020-11-07 14:27:47 +03:00
mark
9e5f7d5631 mv compiler to compiler/ 2020-08-30 18:45:07 +03:00