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Register deferred_codegen in GlobalJD on Julia 1.14+. #802

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Merged
maleadt merged 1 commit into from
May 19, 2026
+13 −4
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Register deferred_codegen in GlobalJD on Julia 1.14+. #802

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17 changes: 13 additions & 4 deletions src/driver.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -150,12 +150,21 @@ end
end
end

# Register deferred_codegen as a global function so that it can be called with `ccall("extern deferred_codegen"`
# Called from __init__
# On 1.11+ this is needed due to a Julia bug that drops the pointer when code-coverage is enabled.
# Register deferred_codegen as a global function so that it can be called with
# `ccall("extern deferred_codegen", ...)`. Called from __init__.
#
# On 1.11+ this is needed due to a Julia bug that drops the pointer when code-coverage is
# enabled. On 1.14+ (JuliaLang/julia#60988), `JITDylib(jljit)` returns a fresh private
# dylib that JD does not search; instead, register the symbol in the `JuliaGlobals` JD,
# which JD links to with `MatchExportedSymbolsOnly`.
function register_deferred_codegen()
@dispose jljit=JuliaOJIT() begin
jd = JITDylib(jljit)
jd = @static if VERSION >= v"1.14.0-DEV.2171"
es = ExecutionSession(jljit)
something(LLVM.lookup_dylib(es, "JuliaGlobals"))
else
JITDylib(jljit)
end

address = LLVM.API.LLVMOrcJITTargetAddress(
reinterpret(UInt, @cfunction(deferred_codegen, Ptr{Cvoid}, (Ptr{Cvoid},))))
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