linux: fix uClibc ifdeffery

src/platform-linux.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 20 matching lines @@
 #include <pthread.h>
 #include <semaphore.h>
 #include <signal.h>
 #include <sys/prctl.h>
 #include <sys/time.h>
 #include <sys/resource.h>
 #include <sys/syscall.h>
 #include <sys/types.h>
 #include <stdlib.h>
 
-#if defined(__GLIBC__)
+#if defined(__GLIBC__) && !defined(__UCLIBC__)
 #include <execinfo.h>
 #include <cxxabi.h>
 #endif
 
 // Ubuntu Dapper requires memory pages to be marked as
 // executable. Otherwise, OS raises an exception when executing code
 // in that page.
 #include <sys/types.h>  // mmap & munmap
 #include <sys/mman.h>   // mmap & munmap
 #include <sys/stat.h>   // open
 #include <fcntl.h>      // open
 #include <unistd.h>     // sysconf
-#if defined(__GLIBC__) && !defined(__UCLIBC__)
-#include <execinfo.h>   // backtrace, backtrace_symbols
-#endif  // defined(__GLIBC__) && !defined(__UCLIBC__)
 #include <strings.h>    // index
 #include <errno.h>
 #include <stdarg.h>
 
 // GLibc on ARM defines mcontext_t has a typedef for 'struct sigcontext'.
 // Old versions of the C library <signal.h> didn't define the type.
 #if defined(__ANDROID__) && !defined(__BIONIC_HAVE_UCONTEXT_T) && \
     defined(__arm__) && !defined(__BIONIC_HAVE_STRUCT_SIGCONTEXT)
 #include <asm/sigcontext.h>
 #endif
@@ skipping 359 matching lines @@
 # endif
 #elif defined(__mips__)
   asm("break");
 #else
   asm("int $3");
 #endif
 }
 
 
 void OS::DumpBacktrace() {
-#if defined(__GLIBC__)
+#if defined(__GLIBC__) && !defined(__UCLIBC__)
   void* trace[100];
   int size = backtrace(trace, ARRAY_SIZE(trace));
   char** symbols = backtrace_symbols(trace, size);
   fprintf(stderr, "\n==== C stack trace ===============================\n\n");
   if (size == 0) {
     fprintf(stderr, "(empty)\n");
   } else if (symbols == NULL) {
     fprintf(stderr, "(no symbols)\n");
   } else {
     for (int i = 1; i < size; ++i) {
@@ skipping 878 matching lines @@
 
 
 void Sampler::Stop() {
   ASSERT(IsActive());
   SignalSender::RemoveActiveSampler(this);
   SetActive(false);
 }
 
 
 } }  // namespace v8::internal