diff options
Diffstat (limited to 'compiler/rustc_session/src/options.rs')
| -rw-r--r-- | compiler/rustc_session/src/options.rs | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index 76d69646f1d..2840c783aa8 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -429,6 +429,7 @@ mod desc { pub const parse_remap_path_scope: &str = "comma separated list of scopes: `macro`, `diagnostics`, `unsplit-debuginfo`, `split-debuginfo`, `split-debuginfo-path`, `object`, `all`"; pub const parse_inlining_threshold: &str = "either a boolean (`yes`, `no`, `on`, `off`, etc), or a non-negative number"; + pub const parse_llvm_module_flag: &str = "<key>:<type>:<value>:<behavior>. Type must currently be `u32`. Behavior should be one of (`error`, `warning`, `require`, `override`, `append`, `appendunique`, `max`, `min`)"; } mod parse { @@ -1331,6 +1332,33 @@ mod parse { } true } + + pub(crate) fn parse_llvm_module_flag( + slot: &mut Vec<(String, u32, String)>, + v: Option<&str>, + ) -> bool { + let elements = v.unwrap_or_default().split(':').collect::<Vec<_>>(); + let [key, md_type, value, behavior] = elements.as_slice() else { + return false; + }; + if *md_type != "u32" { + // Currently we only support u32 metadata flags, but require the + // type for forward-compatibility. + return false; + } + let Ok(value) = value.parse::<u32>() else { + return false; + }; + let behavior = behavior.to_lowercase(); + let all_behaviors = + ["error", "warning", "require", "override", "append", "appendunique", "max", "min"]; + if !all_behaviors.contains(&behavior.as_str()) { + return false; + } + + slot.push((key.to_string(), value, behavior)); + true + } } options! { @@ -1631,6 +1659,8 @@ options! { "link native libraries in the linker invocation (default: yes)"), link_only: bool = (false, parse_bool, [TRACKED], "link the `.rlink` file generated by `-Z no-link` (default: no)"), + llvm_module_flag: Vec<(String, u32, String)> = (Vec::new(), parse_llvm_module_flag, [TRACKED], + "a list of module flags to pass to LLVM (space separated)"), llvm_plugins: Vec<String> = (Vec::new(), parse_list, [TRACKED], "a list LLVM plugins to enable (space separated)"), llvm_time_trace: bool = (false, parse_bool, [UNTRACKED], |