js/src/wasm/WasmLog.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  * vim: set ts=8 sts=2 et sw=2 tw=80:
   3  *
   4  * Copyright 2021 Mozilla Foundation
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18
  19 #include "wasm/WasmLog.h"
  20
  21 #include <stdio.h>
  22
  23 #include "jit/JitOptions.h"
  24 #include "js/Printf.h"
  25 #include "js/Utility.h"
  26 #include "vm/JSContext.h"
  27 #include "vm/Warnings.h"
  28
  29 using namespace js;
  30 using namespace js::wasm;
  31
  32 void wasm::Log(JSContext* cx, const char* fmt, ...) {
  33   MOZ_ASSERT(!cx->isExceptionPending());
  34
  35   if (!cx->options().wasmVerbose()) {
  36     return;
  37   }
  38
  39   va_list args;
  40   va_start(args, fmt);
  41
  42   if (UniqueChars chars = JS_vsmprintf(fmt, args)) {
  43     WarnNumberASCII(cx, JSMSG_WASM_VERBOSE, chars.get());
  44     if (cx->isExceptionPending()) {
  45       cx->clearPendingException();
  46     }
  47   }
  48
  49   va_end(args);
  50 }
  51
  52 void wasm::LogOffThread(const char* fmt, ...) {
  53   va_list ap;
  54   va_start(ap, fmt);
  55   vfprintf(stderr, fmt, ap);
  56   va_end(ap);
  57 }
  58
  59 #ifdef WASM_CODEGEN_DEBUG
  60 bool wasm::IsCodegenDebugEnabled(DebugChannel channel) {
  61   switch (channel) {
  62     case DebugChannel::Function:
  63       return jit::JitOptions.enableWasmFuncCallSpew;
  64     case DebugChannel::Import:
  65       return jit::JitOptions.enableWasmImportCallSpew;
  66   }
  67   return false;
  68 }
  69 #endif
  70
  71 void wasm::DebugCodegen(DebugChannel channel, const char* fmt, ...) {
  72 #ifdef WASM_CODEGEN_DEBUG
  73   if (!IsCodegenDebugEnabled(channel)) {
  74     return;
  75   }
  76   va_list ap;
  77   va_start(ap, fmt);
  78   vfprintf(stderr, fmt, ap);
  79   va_end(ap);
  80 #endif
  81 }