Don't fetch JIT info when --compile=no

Author: christiangnrd

base/sysinfo.jl

@@ -134,6 +134,8 @@ global CPU_NAME::String
 
 A string representing the specific JIT compiler CPU target being utilized in the current runtime.
 
+Set to an empty string if Julia was launched with `--compile=no`.
+
 Note: Included in the output of `versioninfo()`.
 """
 global JIT_CPU::String
@@ -143,6 +145,8 @@ global JIT_CPU::String
 
 A string representing the specific JIT compiler target triple being utilized in the current runtime.
 
+Set to an empty string if Julia was launched with `--compile=no`.
+
 Note: Included in the output of `versioninfo()`.
 """
 global JIT_TRIPLE::String
@@ -152,6 +156,8 @@ global JIT_TRIPLE::String
 
 A string representing the specific Just-In-Time (JIT) compiler being utilized in the current runtime.
 
+Set to an empty string if Julia was launched with `--compile=no`.
+
 # Examples
 Currently, this equals `"ORCJIT"` for the LLVM "ORC" ("On-Request Compilation") JIT library:
 ```jldoctest
@@ -197,10 +203,18 @@ function __init__()
     global EFFECTIVE_CPU_THREADS = min(CPU_THREADS, Int(ccall(:jl_effective_threads, Int32, ())))
     global SC_CLK_TCK = ccall(:jl_SC_CLK_TCK, Clong, ())
     global CPU_NAME = ccall(:jl_get_cpu_name, Ref{String}, ())
-    global JIT = ccall(:jl_get_JIT, Ref{String}, ())
-    _jit = ccall(:JLJITGetJuliaOJIT, Ptr{Cvoid}, ())
-    global JIT_CPU = unsafe_string(ccall(:JLJITGetCPUString, Cstring, (Ptr{Cvoid},), _jit))
-    global JIT_TRIPLE = unsafe_string(ccall(:JLJITGetTripleString, Cstring, (Ptr{Cvoid},), _jit))
+    println(Base.JLOptions().compile_enabled)
+    if Base.JLOptions().compile_enabled != 0
+        global JIT = ccall(:jl_get_JIT, Ref{String}, ())
+        _jit = ccall(:JLJITGetJuliaOJIT, Ptr{Cvoid}, ())
+        global JIT_CPU = unsafe_string(ccall(:JLJITGetCPUString, Cstring, (Ptr{Cvoid},), _jit))
+        global JIT_TRIPLE = unsafe_string(ccall(:JLJITGetTripleString, Cstring, (Ptr{Cvoid},), _jit))
+    else
+        global JIT = ""
+        global JIT_CPU = ""
+        global JIT_TRIPLE = ""
+    end
+
     global BASE_SYSIMG_TARGET = sysimage_target()
     global PAGESIZE = Int(Sys.isunix() ? ccall(:jl_getpagesize, Clong, ()) : ccall(:jl_getallocationgranularity, Clong, ()))
     __init_build()

stdlib/InteractiveUtils/src/InteractiveUtils.jl

@@ -130,7 +130,7 @@ function versioninfo(io::IO=stdout; verbose::Bool=false)
 
     println(io, "Platform Info:")
     println(io, "  OS: ", Sys.iswindows() ? "Windows" : Sys.isapple() ?
-        "macOS" : Sys.KERNEL, " (", Sys.JIT_TRIPLE, ")")
+        "macOS" : Sys.KERNEL)
 
     if verbose
         lsb = ""
@@ -174,7 +174,12 @@ function versioninfo(io::IO=stdout; verbose::Bool=false)
 
         println(io, "  WORD_SIZE: ", Sys.WORD_SIZE)
     end
-    println(io, "  LLVM: libLLVM-", Base.libllvm_version, " (", Sys.JIT, ", ", Sys.JIT_CPU, ")")
+    print(io, "  LLVM: libLLVM-", Base.libllvm_version)
+    if Sys.JIT == ""
+        println(io, " (codegen disabled)")
+    else
+        println(io, " (", Sys.JIT, ": ", Sys.JIT_CPU, ", ", Sys.JIT_TRIPLE, ")")
+    end
     println(io, """Threads: $(Threads.nthreads(:default)) default, $(Threads.nthreads(:interactive)) interactive, \
       $(Threads.ngcthreads()) GC (on $(Sys.CPU_THREADS) virtual cores)""")