Adding GC.gc_active_impl

Author: udesou

base/Base.jl

@@ -128,7 +128,7 @@ include("sysinfo.jl")
 include("libc.jl")
 using .Libc: getpid, gethostname, time, memcpy, memset, memmove, memcmp
 
-const USING_STOCK_GC = occursin("stock", unsafe_string(ccall(:jl_gc_active_impl, Ptr{UInt8}, ())))
+const USING_STOCK_GC = occursin("stock", GC.gc_active_impl())
 
 # These used to be in build_h.jl and are retained for backwards compatibility.
 # NOTE: keep in sync with `libblastrampoline_jll.libblastrampoline`.

base/gcutils.jl

@@ -281,4 +281,15 @@ function logging_enabled()
     ccall(:jl_is_gc_logging_enabled, Cint, ()) != 0
 end
 
+"""
+    GC.gc_active_impl()
+
+Return a string stating which GC implementation is being used and possibly
+its version according to the list of supported GCs
+"""
+function gc_active_impl()
+    unsafe_string(ccall(:jl_gc_active_impl, Ptr{UInt8}, ()))
+end
+
+
 end # module GC