johnmccutchan@google.com
d41a2106c2
Update observatory to support new format Cache code objects inside observatory isolate Profiler updates cache of code objects Profiler can display annotated disassembly objects Code objects now display sample ticks Fix error viewer Start using the logging package. R=turnidge@google.com Review URL: https://codereview.chromium.org//135843006 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@31931 260f80e4-7a28-3924-810f-c04153c831b5
108 lines
3.3 KiB
C++
108 lines
3.3 KiB
C++
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/disassembler.h"
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#include "vm/assembler.h"
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#include "vm/globals.h"
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#include "vm/os.h"
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#include "vm/json_stream.h"
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namespace dart {
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void DisassembleToStdout::ConsumeInstruction(char* hex_buffer,
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intptr_t hex_size,
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char* human_buffer,
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intptr_t human_size,
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uword pc) {
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static const int kHexColumnWidth = 23;
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uint8_t* pc_ptr = reinterpret_cast<uint8_t*>(pc);
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OS::Print("%p %s", pc_ptr, hex_buffer);
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int hex_length = strlen(hex_buffer);
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if (hex_length < kHexColumnWidth) {
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for (int i = kHexColumnWidth - hex_length; i > 0; i--) {
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OS::Print(" ");
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}
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}
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OS::Print("%s", human_buffer);
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OS::Print("\n");
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}
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void DisassembleToStdout::Print(const char* format, ...) {
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va_list args;
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va_start(args, format);
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OS::VFPrint(stdout, format, args);
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va_end(args);
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}
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void DisassembleToJSONStream::ConsumeInstruction(char* hex_buffer,
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intptr_t hex_size,
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char* human_buffer,
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intptr_t human_size,
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uword pc) {
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uint8_t* pc_ptr = reinterpret_cast<uint8_t*>(pc);
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// Instructions are represented as three consecutive values in a JSON array.
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// All three are strings. The first is the address of the instruction,
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// the second is the hex string of the code, and the final is a human
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// readable string.
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jsarr_.AddValueF("%p", pc_ptr);
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jsarr_.AddValue(hex_buffer);
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jsarr_.AddValue(human_buffer);
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}
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void DisassembleToJSONStream::Print(const char* format, ...) {
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va_list args;
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va_start(args, format);
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intptr_t len = OS::VSNPrint(NULL, 0, format, args);
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va_end(args);
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char* p = reinterpret_cast<char*>(malloc(len+1));
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va_start(args, format);
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intptr_t len2 = OS::VSNPrint(p, len, format, args);
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va_end(args);
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ASSERT(len == len2);
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for (intptr_t i = 0; i < len; i++) {
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if (p[i] == '\n' || p[i] == '\r') {
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p[i] = ' ';
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}
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}
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// Instructions are represented as three consecutive values in a JSON array.
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// All three are strings. Comments only use the third slot. See above comment
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// for more information.
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jsarr_.AddValue("");
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jsarr_.AddValue("");
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jsarr_.AddValue(p);
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free(p);
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}
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class FindAddrVisitor : public FindObjectVisitor {
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public:
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explicit FindAddrVisitor(uword addr)
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: FindObjectVisitor(Isolate::Current()), addr_(addr) { }
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virtual ~FindAddrVisitor() { }
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virtual uword filter_addr() const { return addr_; }
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// Check if object matches find condition.
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virtual bool FindObject(RawObject* obj) const {
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return obj == reinterpret_cast<RawObject*>(addr_);
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}
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private:
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const uword addr_;
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DISALLOW_COPY_AND_ASSIGN(FindAddrVisitor);
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};
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bool Disassembler::CanFindOldObject(uword addr) {
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FindAddrVisitor visitor(addr);
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return Isolate::Current()->heap()->FindOldObject(&visitor) != Object::null();
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}
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} // namespace dart
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