Basic compilation on Fuchsia

src/libsampler/sampler.cc

 // Copyright 2016 the V8 project 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 "src/libsampler/sampler.h"
 
 #if V8_OS_POSIX && !V8_OS_CYGWIN
 
 #define USE_SIGNALS
 
@@ skipping 397 matching lines @@
   FillRegisterState(context, &state);
   SamplerManager::instance()->DoSample(state);
 }
 
 void SignalHandler::FillRegisterState(void* context, RegisterState* state) {
   // Extracting the sample from the context is extremely machine dependent.
   ucontext_t* ucontext = reinterpret_cast<ucontext_t*>(context);
 #if !(V8_OS_OPENBSD || (V8_OS_LINUX && (V8_HOST_ARCH_PPC || V8_HOST_ARCH_S390)))
   mcontext_t& mcontext = ucontext->uc_mcontext;
 #endif
-#if V8_OS_LINUX
+#if V8_OS_LINUX || V8_OS_FUCHSIA
 #if V8_HOST_ARCH_IA32
   state->pc = reinterpret_cast<void*>(mcontext.gregs[REG_EIP]);
   state->sp = reinterpret_cast<void*>(mcontext.gregs[REG_ESP]);
   state->fp = reinterpret_cast<void*>(mcontext.gregs[REG_EBP]);
 #elif V8_HOST_ARCH_X64
   state->pc = reinterpret_cast<void*>(mcontext.gregs[REG_RIP]);
   state->sp = reinterpret_cast<void*>(mcontext.gregs[REG_RSP]);
   state->fp = reinterpret_cast<void*>(mcontext.gregs[REG_RBP]);
 #elif V8_HOST_ARCH_ARM
 #if V8_LIBC_GLIBC && !V8_GLIBC_PREREQ(2, 4)
@@ skipping 225 matching lines @@
 #endif
     SampleStack(state);
   }
   ResumeThread(profiled_thread);
 }
 
 #endif  // USE_SIGNALS
 
 }  // namespace sampler
 }  // namespace v8