Added asmjit.

Fixed solution file.

1 files changed, 120 insertions, 0 deletions

diff --git a/client/asmjit/core/jitruntime.cpp b/client/asmjit/core/jitruntime.cpp
new file mode 100644
index 0000000..1127c86
--- /dev/null
+++ b/client/asmjit/core/jitruntime.cpp
@@ -0,0 +1,120 @@
+// AsmJit - Machine code generation for C++
+//
+//  * Official AsmJit Home Page: https://asmjit.com
+//  * Official Github Repository: https://github.com/asmjit/asmjit
+//
+// Copyright (c) 2008-2020 The AsmJit Authors
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+//    claim that you wrote the original software. If you use this software
+//    in a product, an acknowledgment in the product documentation would be
+//    appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+//    misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+#include "../core/api-build_p.h"
+#ifndef ASMJIT_NO_JIT
+
+#include "../core/cpuinfo.h"
+#include "../core/jitruntime.h"
+
+ASMJIT_BEGIN_NAMESPACE
+
+// ============================================================================
+// [asmjit::JitRuntime - Utilities]
+// ============================================================================
+
+// Only useful on non-x86 architectures.
+static inline void JitRuntime_flushInstructionCache(const void* p, size_t size) noexcept {
+#if defined(_WIN32) && !ASMJIT_ARCH_X86
+  // Windows has a built-in support in `kernel32.dll`.
+  ::FlushInstructionCache(::GetCurrentProcess(), p, size);
+#else
+  DebugUtils::unused(p, size);
+#endif
+}
+
+// ============================================================================
+// [asmjit::JitRuntime - Construction / Destruction]
+// ============================================================================
+
+JitRuntime::JitRuntime(const JitAllocator::CreateParams* params) noexcept
+  : _allocator(params) {
+  _environment = hostEnvironment();
+  _environment.setFormat(Environment::kFormatJIT);
+}
+
+JitRuntime::~JitRuntime() noexcept {}
+
+// ============================================================================
+// [asmjit::JitRuntime - Interface]
+// ============================================================================
+
+Error JitRuntime::_add(void** dst, CodeHolder* code) noexcept {
+  *dst = nullptr;
+
+  ASMJIT_PROPAGATE(code->flatten());
+  ASMJIT_PROPAGATE(code->resolveUnresolvedLinks());
+
+  size_t estimatedCodeSize = code->codeSize();
+  if (ASMJIT_UNLIKELY(estimatedCodeSize == 0))
+    return DebugUtils::errored(kErrorNoCodeGenerated);
+
+  uint8_t* ro;
+  uint8_t* rw;
+  ASMJIT_PROPAGATE(_allocator.alloc((void**)&ro, (void**)&rw, estimatedCodeSize));
+
+  // Relocate the code.
+  Error err = code->relocateToBase(uintptr_t((void*)ro));
+  if (ASMJIT_UNLIKELY(err)) {
+    _allocator.release(ro);
+    return err;
+  }
+
+  // Recalculate the final code size and shrink the memory we allocated for it
+  // in case that some relocations didn't require records in an address table.
+  size_t codeSize = code->codeSize();
+
+  for (Section* section : code->_sections) {
+    size_t offset = size_t(section->offset());
+    size_t bufferSize = size_t(section->bufferSize());
+    size_t virtualSize = size_t(section->virtualSize());
+
+    ASMJIT_ASSERT(offset + bufferSize <= codeSize);
+    memcpy(rw + offset, section->data(), bufferSize);
+
+    if (virtualSize > bufferSize) {
+      ASMJIT_ASSERT(offset + virtualSize <= codeSize);
+      memset(rw + offset + bufferSize, 0, virtualSize - bufferSize);
+    }
+  }
+
+  if (codeSize < estimatedCodeSize)
+    _allocator.shrink(ro, codeSize);
+
+  flush(ro, codeSize);
+  *dst = ro;
+
+  return kErrorOk;
+}
+
+Error JitRuntime::_release(void* p) noexcept {
+  return _allocator.release(p);
+}
+
+void JitRuntime::flush(const void* p, size_t size) noexcept {
+  JitRuntime_flushInstructionCache(p, size);
+}
+
+ASMJIT_END_NAMESPACE
+
+#endif