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rust/compiler/rustc_target/src/spec/x86_64_unknown_netbsd.rs

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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.
2021-01-09 15:54:20 +01:00
use crate::spec::{LinkerFlavor, StackProbeType, Target, TargetOptions};
Add netbsd amd64 support
2015-07-01 05:37:11 +02:00
rustc_target: Refactor away `TargetResult` Construction of a built-in target is always infallible now, so `TargetResult` is no longer necessary.
2020-10-05 14:37:55 +02:00
pub fn target() -> Target {
Add netbsd amd64 support
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let mut base = super::netbsd_base::opts();
Use "x86-64" as the target CPU for NetBSD and Bitrig on amd64. Using "generic" disables a number of features that are present on all x86_64 cpus, the "x86-64" target cpu is the common denominator for that arch. Refs #20777
2016-07-25 19:13:10 +02:00
base.cpu = "x86-64".to_string();
change max_atomic_width type from u64 to Option<u64> to better express the idea that omitting this field defaults this value to target_pointer_width
2016-10-04 06:45:40 +02:00
base.max_atomic_width = Some(64);
-Z linker-flavor This patch adds a `-Z linker-flavor` flag to rustc which can be used to invoke the linker using a different interface. For example, by default rustc assumes that all the Linux targets will be linked using GCC. This makes it impossible to use LLD as a linker using just `-C linker=ld.lld` because that will invoke LLD with invalid command line arguments. (e.g. rustc will pass -Wl,--gc-sections to LLD but LLD doesn't understand that; --gc-sections would be the right argument) With this patch one can pass `-Z linker-flavor=ld` to rustc to invoke the linker using a LD-like interface. This way, `rustc -C linker=ld.lld -Z linker-flavor=ld` will invoke LLD with the right arguments. `-Z linker-flavor` accepts 4 different arguments: `em` (emcc), `ld`, `gcc`, `msvc` (link.exe). `em`, `gnu` and `msvc` cover all the existing linker interfaces. `ld` is a new flavor for interfacing GNU's ld and LLD. This patch also changes target specifications. `linker-flavor` is now a mandatory field that specifies the *default* linker flavor that the target will use. This change also makes the linker interface *explicit*; before, it used to be derived from other fields like linker-is-gnu, is-like-msvc, is-like-emscripten, etc. Another change to target specifications is that the fields `pre-link-args`, `post-link-args` and `late-link-args` now expect a map from flavor to linker arguments. ``` diff - "pre-link-args": ["-Wl,--as-needed", "-Wl,-z,-noexecstack"], + "pre-link-args": { + "gcc": ["-Wl,--as-needed", "-Wl,-z,-noexecstack"], + "ld": ["--as-needed", "-z,-noexecstack"], + }, ``` [breaking-change] for users of custom targets specifications
2017-02-21 20:47:15 +01:00
base.pre_link_args.get_mut(&LinkerFlavor::Gcc).unwrap().push("-m64".to_string());
Effective beta backport of 8d1083e319841624f64400e1524805a40d725439 (I recreated it by hand because the result of the cherry-pick wasn't worth trying to salvage.)
2021-04-29 21:56:12 +02:00
// don't use probe-stack=inline-asm until rust#83139 and rust#84667 are resolved
base.stack_probes = StackProbeType::Call;
Add netbsd amd64 support
2015-07-01 05:37:11 +02:00
rustc_target: Refactor away `TargetResult` Construction of a built-in target is always infallible now, so `TargetResult` is no longer necessary.
2020-10-05 14:37:55 +02:00
Target {
Add netbsd amd64 support
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llvm_target: "x86_64-unknown-netbsd".to_string(),
Use integer literals for builtin target_pointer_width fields 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' {} \;
2020-10-14 18:08:12 +02:00
pointer_width: 64,
Update data layouts to include new X86 address spaces
2020-01-07 21:26:52 +01:00
data_layout: "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
.to_string(),
Add netbsd amd64 support
2015-07-01 05:37:11 +02:00
arch: "x86_64".to_string(),
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 12:57:55 +01:00
options: TargetOptions { mcount: "__mcount".to_string(), ..base },
rustc_target: Refactor away `TargetResult` Construction of a built-in target is always infallible now, so `TargetResult` is no longer necessary.
2020-10-05 14:37:55 +02:00
}
Add netbsd amd64 support
2015-07-01 05:37:11 +02:00
}