Update a few comments.

Test: N/A
Change-Id: Id5e21eaff9bc43256b8f54e708dfc862ee7e763a

libc/bionic/libc_init_dynamic.cpp

@@ -27,8 +27,6 @@
  */
 
 /*
- * libc_init_dynamic.c
- *
  * This source files provides two important functions for dynamic
  * executables:
  *
@@ -38,10 +36,7 @@
  *   shared libraries the program depends on).
  *
  * - a program launch function (__libc_init), which is called after
- *   all dynamic linking has been performed. Technically, it is called
- *   from arch-$ARCH/bionic/crtbegin_dynamic.S which is itself called
- *   by the dynamic linker after all libraries have been loaded and
- *   initialized.
+ *   all dynamic linking has been performed.
  */
 
 #include <stddef.h>

libc/bionic/libc_init_static.cpp

@@ -157,13 +157,6 @@ static void layout_static_tls(KernelArgumentBlock& args) {
   layout.finish_layout();
 }
 
-// The program startup function __libc_init() defined here is
-// used for static executables only (i.e. those that don't depend
-// on shared libraries). It is called from arch-$ARCH/bionic/crtbegin_static.S
-// which is directly invoked by the kernel when the program is launched.
-//
-// The 'structors' parameter contains pointers to various initializer
-// arrays that must be run before the program's 'main' routine is launched.
 __noreturn static void __real_libc_init(void *raw_args,
                                         void (*onexit)(void) __unused,
                                         int (*slingshot)(int, char**, char**),
@@ -204,6 +197,10 @@ __noreturn static void __real_libc_init(void *raw_args,
 
 extern "C" void __hwasan_init_static();
 
+// This __libc_init() is only used for static executables, and is called from crtbegin.c.
+//
+// The 'structors' parameter contains pointers to various initializer
+// arrays that must be run before the program's 'main' routine is launched.
 __attribute__((no_sanitize("hwaddress")))
 __noreturn void __libc_init(void* raw_args,
                             void (*onexit)(void) __unused,