kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 1 | // Copyright 2006-2009 the V8 project authors. All rights reserved. |
| 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | #include "v8.h" |
| 29 | |
| 30 | #include "oprofile-agent.h" |
| 31 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 32 | namespace v8 { |
| 33 | namespace internal { |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 34 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 35 | |
| 36 | bool OProfileAgent::Initialize() { |
| 37 | #ifdef ENABLE_OPROFILE_AGENT |
| 38 | if (FLAG_oprofile) { |
| 39 | if (handle_ != NULL) return false; |
| 40 | |
| 41 | // Disable code moving by GC. |
| 42 | FLAG_always_compact = false; |
| 43 | FLAG_never_compact = true; |
| 44 | |
| 45 | handle_ = op_open_agent(); |
| 46 | return (handle_ != NULL); |
| 47 | } else { |
| 48 | return true; |
| 49 | } |
| 50 | #else |
ager@chromium.org | 5aa501c | 2009-06-23 07:57:28 +0000 | [diff] [blame] | 51 | if (FLAG_oprofile) { |
| 52 | OS::Print("Warning: --oprofile specified but binary compiled without " |
| 53 | "oprofile support.\n"); |
| 54 | } |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 55 | return true; |
| 56 | #endif |
| 57 | } |
| 58 | |
| 59 | |
| 60 | void OProfileAgent::TearDown() { |
| 61 | #ifdef ENABLE_OPROFILE_AGENT |
| 62 | if (handle_ != NULL) { |
| 63 | op_close_agent(handle_); |
| 64 | } |
| 65 | #endif |
| 66 | } |
| 67 | |
| 68 | |
ager@chromium.org | b26c50a | 2010-03-26 09:27:16 +0000 | [diff] [blame] | 69 | #ifdef ENABLE_OPROFILE_AGENT |
| 70 | op_agent_t OProfileAgent::handle_ = NULL; |
| 71 | |
| 72 | |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 73 | void OProfileAgent::CreateNativeCodeRegion(const char* name, |
| 74 | const void* ptr, unsigned int size) { |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 75 | op_write_native_code(handle_, name, (uint64_t)ptr, ptr, size); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 76 | } |
| 77 | |
| 78 | |
| 79 | void OProfileAgent::CreateNativeCodeRegion(String* name, |
| 80 | const void* ptr, unsigned int size) { |
ager@chromium.org | b26c50a | 2010-03-26 09:27:16 +0000 | [diff] [blame] | 81 | const char* func_name; |
| 82 | SmartPointer<char> str = |
| 83 | name->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| 84 | func_name = name->length() > 0 ? *str : "<anonymous>"; |
| 85 | CreateNativeCodeRegion(func_name, ptr, size); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 86 | } |
| 87 | |
| 88 | |
| 89 | void OProfileAgent::CreateNativeCodeRegion(String* name, String* source, |
| 90 | int line_num, const void* ptr, unsigned int size) { |
ager@chromium.org | b26c50a | 2010-03-26 09:27:16 +0000 | [diff] [blame] | 91 | Vector<char> buf = Vector<char>::New(OProfileAgent::kFormattingBufSize); |
| 92 | const char* func_name; |
| 93 | SmartPointer<char> str = |
| 94 | name->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| 95 | func_name = name->length() > 0 ? *str : "<anonymous>"; |
| 96 | SmartPointer<char> source_str = |
| 97 | source->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| 98 | if (v8::internal::OS::SNPrintF(buf, "%s %s:%d", |
| 99 | func_name, *source_str, line_num) != -1) { |
| 100 | CreateNativeCodeRegion(buf.start(), ptr, size); |
| 101 | } else { |
| 102 | CreateNativeCodeRegion("<script/func name too long>", ptr, size); |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 103 | } |
kasperl@chromium.org | 7be3c99 | 2009-03-12 07:19:55 +0000 | [diff] [blame] | 104 | } |
ager@chromium.org | b26c50a | 2010-03-26 09:27:16 +0000 | [diff] [blame] | 105 | |
| 106 | #endif // ENABLE_OPROFILE_AGENT |
| 107 | |
| 108 | } } // namespace v8::internal |