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author Matthew Maurer <mmaurer@google.com> 2024-12-11 20:02:08 +0000
committer Matthew Maurer <mmaurer@google.com> 2024-12-11 20:02:08 +0000
commit150afc0fb2ff52130ae0aef0a270caf037014652 (patch)
treecc4523cafa8d232fc06f3a9b37753579965769e1 /rust/proc_macro.go
parent43a0a2365ea0c5c5ceae67907e2d8e849388eed5 (diff)
rust: Set `-C metadata` on proc-macros
Without this set, trying to load two proc-macros with the same crate name but different hashes may fail quietly at the interner step. Bug: 383526333 Test: m crosvm using both zerocopy-0.8 and zerocopy-0.7 Change-Id: I32b70fd8eb278c3edb649f268f762761082a46b7
Diffstat (limited to 'rust/proc_macro.go')
-rw-r--r--rust/proc_macro.go1
1 files changed, 1 insertions, 0 deletions
diff --git a/rust/proc_macro.go b/rust/proc_macro.go
index 1ff6637a6..28ed68b71 100644
--- a/rust/proc_macro.go
+++ b/rust/proc_macro.go
@@ -67,6 +67,7 @@ func (procMacro *procMacroDecorator) compilerProps() []interface{} {
func (procMacro *procMacroDecorator) compilerFlags(ctx ModuleContext, flags Flags) Flags {
flags = procMacro.baseCompiler.compilerFlags(ctx, flags)
flags.RustFlags = append(flags.RustFlags, "--extern proc_macro")
+ flags.RustFlags = append(flags.RustFlags, "-C metadata="+ctx.ModuleName())
return flags
}