diff options
Diffstat (limited to 'compiler/rustc_target/src/spec/json.rs')
| -rw-r--r-- | compiler/rustc_target/src/spec/json.rs | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/compiler/rustc_target/src/spec/json.rs b/compiler/rustc_target/src/spec/json.rs index 54b06d9f9b4..039056a5a25 100644 --- a/compiler/rustc_target/src/spec/json.rs +++ b/compiler/rustc_target/src/spec/json.rs @@ -2,7 +2,7 @@ use std::borrow::Cow; use std::collections::BTreeMap; use std::str::FromStr; -use rustc_abi::ExternAbi; +use rustc_abi::{Align, AlignFromBytesError, ExternAbi}; use serde_json::Value; use super::{Target, TargetKind, TargetOptions, TargetWarnings}; @@ -57,6 +57,14 @@ impl Target { base.metadata.std = metadata.remove("std").and_then(|host| host.as_bool()); } + let alignment_error = |field_name: &str, error: AlignFromBytesError| -> String { + let msg = match error { + AlignFromBytesError::NotPowerOfTwo(_) => "not a power of 2 number of bytes", + AlignFromBytesError::TooLarge(_) => "too large", + }; + format!("`{}` bits is not a valid value for {field_name}: {msg}", error.align() * 8) + }; + let mut incorrect_type = vec![]; macro_rules! key { @@ -111,6 +119,15 @@ impl Target { base.$key_name = Some(s.into()); } } ); + ($key_name:ident, Option<Align>) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + if let Some(b) = obj.remove(&name).and_then(|b| b.as_u64()) { + match Align::from_bits(b) { + Ok(align) => base.$key_name = Some(align), + Err(e) => return Err(alignment_error(&name, e)), + } + } + } ); ($key_name:ident, BinaryFormat) => ( { let name = (stringify!($key_name)).replace("_", "-"); obj.remove(&name).and_then(|f| f.as_str().and_then(|s| { @@ -617,7 +634,7 @@ impl Target { key!(crt_static_default, bool); key!(crt_static_respected, bool); key!(stack_probes, StackProbeType)?; - key!(min_global_align, Option<u64>); + key!(min_global_align, Option<Align>); key!(default_codegen_units, Option<u64>); key!(default_codegen_backend, Option<StaticCow<str>>); key!(trap_unreachable, bool); |