PNaCl. Enables Unsandboxed nonsfi ARM32.

src/nonsfi/irt/irt_interfaces.c

 /*
  * Copyright (c) 2013 The Native Client Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <assert.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <limits.h>
@@ skipping 344 matching lines @@
   return g_tls_value;
 }
 
 /* For newlib based nonsfi_loader, we use the one defined in pnacl_irt.c. */
 #if !defined(__native_client__)
 void *__nacl_read_tp(void) {
   return g_tls_value;
 }
 #endif
 
+#if defined(__arm_nonsfi_linux__)
+
+__asm__(".pushsection .text, \"ax\", %progbits\n"
+        ".global __aeabi_read_tp\n"
+        ".type __aeabi_read_tp, %function\n"
+        ".arm\n"
+        "__aeabi_read_tp:\n"
+        "push {r1-r3, lr}\n"
+        "vpush {d0-d7}\n"
+        "blx aeabi_read_tp_impl\n"
+        "vpop {d0-d7}\n"
+        "pop {r1-r3, pc}\n"
+        ".popsection\n");
+
+void *aeabi_read_tp_impl(void) {
+  return g_tls_value;
+}
+
+#endif
+
+
 struct thread_args {
   void (*start_func)(void);
   void *thread_ptr;
 };
 
 static void *start_thread(void *arg) {
   struct thread_args args = *(struct thread_args *) arg;
   free(arg);
   g_tls_value = args.thread_ptr;
   args.start_func();
@@ skipping 488 matching lines @@
 
 #if defined(DEFINE_MAIN)
 int main(int argc, char **argv, char **environ) {
   nacl_irt_nonsfi_allow_dev_interfaces();
   nacl_entry_func_t entry_func = USER_START;
 
   return nacl_irt_nonsfi_entry(argc, argv, environ, entry_func,
                                nacl_irt_query_core);
 }
 #endif