Make __cpu_model a hidden symbol, to match libgcc.

[saugustine]

Summary

Make __cpu_model a hidden symbol, to match libgcc.

[kongyi]

compiler-rt/lib/builtins/cpu_model.c

606 ↗

(On Diff #191392)

Please also mark __cpu_features2 as hidden.

[hhb]

compiler-rt/lib/builtins/cpu_model.c

615 ↗

(On Diff #191392)

And __cpu_indicator_init just in case. It is already used as hidden symbol in __builtin_cpu_init codegen.

[saugustine]

• Also hide __cpu_inicator_init for similar reasons.

[saugustine]

Make cpu_model a hidden symbol, to match libgcc.
Also cpu_features2 and __cpu_indicator_init.

[saugustine]

Thanks. I've hidden a couple more symbols Please take another look.

[asbirlea]

lgtm.

compiler-rt/trunk/lib/builtins/cpu_model.c

 #elif __has_attribute(__constructor__)
 #define CONSTRUCTOR_ATTRIBUTE __attribute__((__constructor__))
 #else
 // FIXME: For MSVC, we should make a function pointer global in .CRT$X?? so that
 // this runs during initialization.
 #define CONSTRUCTOR_ATTRIBUTE
 #endif
 
+#ifndef _WIN32
+__attribute__((visibility("hidden")))
+#endif
 int __cpu_indicator_init(void) CONSTRUCTOR_ATTRIBUTE;
 
+#ifndef _WIN32
+__attribute__((visibility("hidden")))
+#endif
 struct __processor_model {
   unsigned int __cpu_vendor;
   unsigned int __cpu_type;
   unsigned int __cpu_subtype;
   unsigned int __cpu_features[1];
 } __cpu_model = {0, 0, 0, {0}};
+
+#ifndef _WIN32
+__attribute__((visibility("hidden")))
+#endif
 unsigned int __cpu_features2;
 
 /* A constructor function that is sets __cpu_model and __cpu_features2 with
    the right values.  This needs to run only once.  This constructor is
    given the highest priority and it should run before constructors without
    the priority set.  However, it still runs after ifunc initializers and
    needs to be called explicitly there.  */