diff --git a/React/Profiler/RCTMacros.h b/React/Profiler/RCTMacros.h
new file mode 100644
index 000000000..04635eb50
--- /dev/null
+++ b/React/Profiler/RCTMacros.h
@@ -0,0 +1,13 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+#define _CONCAT(A, B) A##B
+#define CONCAT(A, B) _CONCAT(A, B)
+
+#define SYMBOL_NAME(S) CONCAT(__USER_LABEL_PREFIX__, S)
diff --git a/React/Profiler/RCTProfile.m b/React/Profiler/RCTProfile.m
index 3a131183f..80e301fb8 100644
--- a/React/Profiler/RCTProfile.m
+++ b/React/Profiler/RCTProfile.m
@@ -190,16 +190,15 @@ IMP RCTProfileGetImplementation(id obj, SEL cmd)
  * The implementation can be found in RCTProfileTrampoline-<arch>.s where arch
  * is one of: x86, x86_64, arm, arm64.
  */
-static IMP RCTProfileGetTrampoline(void)
-{
-  static void (*RCTProfileTrampoline)(void);
-  static dispatch_once_t onceToken;
-  dispatch_once(&onceToken, ^{
-    RCTProfileTrampoline = dlsym(RTLD_DEFAULT, "RCTProfileTrampoline");
-  });
+#if defined(__x86__) || \
+    defined(__x86_64__) || \
+    defined(__arm__) || \
+    defined(__arm64__)
 
-  return (IMP)RCTProfileTrampoline;
-}
+  RCT_EXTERN void RCTProfileTrampoline(void);
+#else
+  static void *RCTProfileTrampoline = NULL;
+#endif
 
 RCT_EXTERN void RCTProfileTrampolineStart(id, SEL);
 void RCTProfileTrampolineStart(id self, SEL cmd)
@@ -216,9 +215,12 @@ void RCTProfileTrampolineEnd(void)
 
 void RCTProfileHookModules(RCTBridge *bridge)
 {
-  if (RCTProfileGetTrampoline() == NULL) {
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wtautological-pointer-compare"
+  if (RCTProfileTrampoline == NULL) {
     return;
   }
+#pragma clang diagnostic pop
 
   for (RCTModuleData *moduleData in [bridge valueForKey:@"moduleDataByID"]) {
     [moduleData dispatchBlock:^{
@@ -239,7 +241,7 @@ void RCTProfileHookModules(RCTBridge *bridge)
         }
         const char *types = method_getTypeEncoding(method);
 
-        class_addMethod(proxyClass, selector, RCTProfileGetTrampoline(), types);
+        class_addMethod(proxyClass, selector, RCTProfileTrampoline, types);
       }
       free(methods);
 
diff --git a/React/Profiler/RCTProfileTrampoline-arm.S b/React/Profiler/RCTProfileTrampoline-arm.S
index f9a9a31cd..4835d261a 100644
--- a/React/Profiler/RCTProfileTrampoline-arm.S
+++ b/React/Profiler/RCTProfileTrampoline-arm.S
@@ -1,10 +1,11 @@
 #include "RCTDefines.h"
+#include "RCTMacros.h"
 
 #if RCT_DEV && defined(__arm__)
 
 	.align 5
-  .globl _RCTProfileTrampoline
-_RCTProfileTrampoline:
+  .globl SYMBOL_NAME(RCTProfileTrampoline)
+SYMBOL_NAME(RCTProfileTrampoline):
   /**
    * The explanation here is shorter, refer to the x86_64 implementation to a
    * richer explanation
@@ -24,7 +25,7 @@ _RCTProfileTrampoline:
    * profile
    */
   mov r0, #0xc
-  bl _malloc
+  bl SYMBOL_NAME(malloc)
   /**
    * r4 is the callee saved register we'll use to refer to the allocated memory,
    * store its initial value, so we can restore it later
@@ -40,7 +41,7 @@ _RCTProfileTrampoline:
    */
   ldr r0, [sp]
   ldr r1, [sp, #0x4]
-  bl _RCTProfileGetImplementation
+  bl SYMBOL_NAME(RCTProfileGetImplementation)
   // store the actual function address in the allocated memory
   str r0, [r4, #0x4]
 
@@ -51,7 +52,7 @@ _RCTProfileTrampoline:
    */
   ldr r0, [sp]
   ldr r1, [sp, #0x4]
-  bl _RCTProfileTrampolineStart
+  bl SYMBOL_NAME(RCTProfileTrampolineStart)
 
   /**
    * Restore the state to call the actual function we want to profile: pop
@@ -66,7 +67,7 @@ _RCTProfileTrampoline:
   push {r0} // save return value
 
   // void RCTProfileTrampolineEnd(void) in RCTProfile.m - just ends this profile
-  bl _RCTProfileTrampolineEnd
+  bl SYMBOL_NAME(RCTProfileTrampolineEnd)
 
   /**
    * Save the value we still need from the allocated memory (caller address),
@@ -76,7 +77,7 @@ _RCTProfileTrampoline:
   ldr r1, [r4, #0x8]
   ldr r4, [r4]
   push {r1} // save the caller on the stack
-  bl _free
+  bl SYMBOL_NAME(free)
 
   pop {lr} // pop the caller
   pop {r0} // pop the return value
diff --git a/React/Profiler/RCTProfileTrampoline-arm64.S b/React/Profiler/RCTProfileTrampoline-arm64.S
index e9bcf383f..92ea42a83 100644
--- a/React/Profiler/RCTProfileTrampoline-arm64.S
+++ b/React/Profiler/RCTProfileTrampoline-arm64.S
@@ -1,10 +1,11 @@
 #include "RCTDefines.h"
+#include "RCTMacros.h"
 
 #if RCT_DEV && defined(__arm64__)
 
   .align 5
-  .globl _RCTProfileTrampoline
-_RCTProfileTrampoline:
+  .globl SYMBOL_NAME(RCTProfileTrampoline)
+SYMBOL_NAME(RCTProfileTrampoline):
   /**
    * The explanation here is shorter, refer to the x86_64 implementation to  a
    * richer explanation
@@ -38,7 +39,7 @@ _RCTProfileTrampoline:
    * the implementation and the caller address.
    */
   mov x0, #0x10
-  bl _malloc
+  bl SYMBOL_NAME(malloc)
   // store the initial value of r19, the callee saved register we'll use
   str x19, [x0]
   mov x19, x0
@@ -50,7 +51,7 @@ _RCTProfileTrampoline:
    * this function
    */
   ldp	x0, x1, [sp, #(8*16+0*8)]
-  bl _RCTProfileGetImplementation
+  bl SYMBOL_NAME(RCTProfileGetImplementation)
   str x0, [x19, #0x8] // store the actual function address
 
   /**
@@ -59,7 +60,7 @@ _RCTProfileTrampoline:
    * start the profile, it takes the same first 2 arguments as above.
    */
   ldp	x0, x1, [sp, #(8*16+0*8)]
-  bl _RCTProfileTrampolineStart
+  bl SYMBOL_NAME(RCTProfileTrampolineStart)
 
   // Restore all the parameter registers to the initial state.
   ldp	q0, q1, [sp, #(0*16)]
@@ -91,7 +92,7 @@ _RCTProfileTrampoline:
   str x0, [sp, #0x10] // 8-byte return value
 
   // void RCTProfileTrampolineEnd(void) in RCTProfile.m - just ends this profile
-  bl _RCTProfileTrampolineEnd
+  bl SYMBOL_NAME(RCTProfileTrampolineEnd)
 
   /**
    * restore the callee saved registers, move the values we still need to the
@@ -101,7 +102,7 @@ _RCTProfileTrampoline:
   ldr x10, [x19, #0x8] //  load the caller address
   ldr x19, [x19] // restore x19
   str x10, [sp, #0x18] // store x10 on the stack space allocated above
-  bl _free
+  bl SYMBOL_NAME(free)
 
   // Load both return values and link register from the stack
   ldr q0, [sp, #0x0]
diff --git a/React/Profiler/RCTProfileTrampoline-x86.S b/React/Profiler/RCTProfileTrampoline-x86.S
index 8d7408f23..0ccd37b4f 100644
--- a/React/Profiler/RCTProfileTrampoline-x86.S
+++ b/React/Profiler/RCTProfileTrampoline-x86.S
@@ -1,9 +1,10 @@
 #include "RCTDefines.h"
+#include "RCTMacros.h"
 
 #if RCT_DEV && defined(__i386__)
 
-  .globl _RCTProfileTrampoline
-_RCTProfileTrampoline:
+  .globl SYMBOL_NAME(RCTProfileTrampoline)
+SYMBOL_NAME(RCTProfileTrampoline):
   /**
    * The x86 version is much simpler, since all the arguments are passed in the
    * stack, so we just have to preserve the stack pointer (%esp) and the callee
@@ -20,7 +21,7 @@ _RCTProfileTrampoline:
    */
   subl $0x8, %esp // stack padding (16-byte alignment for function calls)
   pushl $0xc // allocate 12-bytes
-  calll _malloc
+  calll SYMBOL_NAME(malloc)
   addl $0xc, %esp // restore stack (8-byte padding + 4-byte argument)
 
   /**
@@ -37,7 +38,7 @@ _RCTProfileTrampoline:
    *
    * Get the address of the actual C function we have to profile
    */
-  calll _RCTProfileGetImplementation
+  calll SYMBOL_NAME(RCTProfileGetImplementation)
   movl %eax, 0x8(%edi) // Save it in the allocated memory
 
   /**
@@ -47,7 +48,7 @@ _RCTProfileTrampoline:
    * stack since it takes the same first 2 arguments as the any ObjC function -
    * "self" and "_cmd"
    */
-  calll _RCTProfileTrampolineStart
+  calll SYMBOL_NAME(RCTProfileTrampolineStart)
 
   /**
    * Call the actual function and save it's return value, since it should be the
@@ -58,7 +59,7 @@ _RCTProfileTrampoline:
 
   // Align stack and end profile
   subl $0xc, %esp
-  calll _RCTProfileTrampolineEnd
+  calll SYMBOL_NAME(RCTProfileTrampolineEnd)
   addl $0xc, %esp // restore the stack
 
   /**
@@ -75,7 +76,7 @@ _RCTProfileTrampoline:
    * the stack has already been padded and the first and only argument, the
    * memory address, is already in the bottom of the stack.
    */
-  calll _free
+  calll SYMBOL_NAME(free)
   addl $0x8, %esp
 
   /**
diff --git a/React/Profiler/RCTProfileTrampoline-x86_64.S b/React/Profiler/RCTProfileTrampoline-x86_64.S
index 683c88a79..5ac3b52c7 100644
--- a/React/Profiler/RCTProfileTrampoline-x86_64.S
+++ b/React/Profiler/RCTProfileTrampoline-x86_64.S
@@ -1,9 +1,13 @@
 #include "RCTDefines.h"
+#include "RCTMacros.h"
 
 #if RCT_DEV && defined(__x86_64__)
 
-  .globl _RCTProfileTrampoline
-_RCTProfileTrampoline:
+/**
+ * Define both symbols for compatibility with other assemblers
+ */
+  .globl SYMBOL_NAME(RCTProfileTrampoline)
+SYMBOL_NAME(RCTProfileTrampoline):
 
   /**
    * Saves all the state so we can restore it before calling the functions being
@@ -40,7 +44,7 @@ _RCTProfileTrampoline:
    * This is a C function defined in `RCTProfile.m`, the object and the selector
    * already have to be on %rdi and %rsi respectively, as in any ObjC call.
    */
-  callq _RCTProfileGetImplementation
+  callq SYMBOL_NAME(RCTProfileGetImplementation)
 
   // Restore/unalign the stack pointer, so we can access the registers we stored
   movq %r12, %rsp
@@ -71,7 +75,7 @@ _RCTProfileTrampoline:
 
   // allocate 16 bytes
   movq $0x10, %rdi
-  callq _malloc
+  callq SYMBOL_NAME(malloc)
 
   // store the initial value of calle saved registers %r13 and %r14
   movq %r13, 0x0(%rax)
@@ -89,7 +93,7 @@ _RCTProfileTrampoline:
   movq 0x38(%r12), %rsi // selector
 
   // void RCTProfileTrampolineStart(id, SEL) in RCTProfile.m
-  callq _RCTProfileTrampolineStart
+  callq SYMBOL_NAME(RCTProfileTrampolineStart)
 
   // unalign the stack and restore %r12
   movq %r12, %rsp
@@ -121,7 +125,7 @@ _RCTProfileTrampoline:
   andq $-0x10, %rsp
 
   // void RCTProfileTrampolineEnd(void) in RCTProfile.m - just ends this profile
-  callq _RCTProfileTrampolineEnd
+  callq SYMBOL_NAME(RCTProfileTrampolineEnd)
 
   // unalign stack and restore %r12
   movq %r12, %rsp
@@ -151,7 +155,7 @@ _RCTProfileTrampoline:
 
   // Free the memory allocated to stash callee saved registers
   movq %rdx, %rdi
-  callq _free
+  callq SYMBOL_NAME(free)
 
   // unalign  stack and restore %r12
   movq %r12, %rsp