Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(135)

Unified Diff: src/log.cc

Issue 255803003: Linux perf support update. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Rebase Created 6 years, 6 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « src/isolate.cc ('k') | src/perf-jit.h » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: src/log.cc
diff --git a/src/log.cc b/src/log.cc
index 6d88a535dc78f4ce10ce7a578d56d1b7b32b4e7c..b410ab8ca10545b2964945e9fa7a9f707b26dfe6 100644
--- a/src/log.cc
+++ b/src/log.cc
@@ -15,6 +15,7 @@
#include "src/log.h"
#include "src/log-utils.h"
#include "src/macro-assembler.h"
+#include "src/perf-jit.h"
#include "src/runtime-profiler.h"
#include "src/serialize.h"
#include "src/string-stream.h"
@@ -289,172 +290,6 @@ void PerfBasicLogger::LogRecordedBuffer(Code* code,
}
-// Linux perf tool logging support
-class PerfJitLogger : public CodeEventLogger {
- public:
- PerfJitLogger();
- virtual ~PerfJitLogger();
-
- virtual void CodeMoveEvent(Address from, Address to) { }
- virtual void CodeDisableOptEvent(Code* code, SharedFunctionInfo* shared) { }
- virtual void CodeDeleteEvent(Address from) { }
-
- private:
- virtual void LogRecordedBuffer(Code* code,
- SharedFunctionInfo* shared,
- const char* name,
- int length);
-
- // Extension added to V8 log file name to get the low-level log name.
- static const char kFilenameFormatString[];
- static const int kFilenameBufferPadding;
-
- // File buffer size of the low-level log. We don't use the default to
- // minimize the associated overhead.
- static const int kLogBufferSize = 2 * MB;
-
- void LogWriteBytes(const char* bytes, int size);
- void LogWriteHeader();
-
- static const uint32_t kJitHeaderMagic = 0x4F74496A;
- static const uint32_t kJitHeaderVersion = 0x2;
- static const uint32_t kElfMachIA32 = 3;
- static const uint32_t kElfMachX64 = 62;
- static const uint32_t kElfMachARM = 40;
- static const uint32_t kElfMachMIPS = 10;
- static const uint32_t kElfMachX87 = 3;
-
- struct jitheader {
- uint32_t magic;
- uint32_t version;
- uint32_t total_size;
- uint32_t elf_mach;
- uint32_t pad1;
- uint32_t pid;
- uint64_t timestamp;
- };
-
- enum jit_record_type {
- JIT_CODE_LOAD = 0
- // JIT_CODE_UNLOAD = 1,
- // JIT_CODE_CLOSE = 2,
- // JIT_CODE_DEBUG_INFO = 3,
- // JIT_CODE_PAGE_MAP = 4,
- // JIT_CODE_MAX = 5
- };
-
- struct jr_code_load {
- uint32_t id;
- uint32_t total_size;
- uint64_t timestamp;
- uint64_t vma;
- uint64_t code_addr;
- uint32_t code_size;
- uint32_t align;
- };
-
- uint32_t GetElfMach() {
-#if V8_TARGET_ARCH_IA32
- return kElfMachIA32;
-#elif V8_TARGET_ARCH_X64
- return kElfMachX64;
-#elif V8_TARGET_ARCH_ARM
- return kElfMachARM;
-#elif V8_TARGET_ARCH_MIPS
- return kElfMachMIPS;
-#elif V8_TARGET_ARCH_X87
- return kElfMachX87;
-#else
- UNIMPLEMENTED();
- return 0;
-#endif
- }
-
- FILE* perf_output_handle_;
-};
-
-const char PerfJitLogger::kFilenameFormatString[] = "/tmp/jit-%d.dump";
-
-// Extra padding for the PID in the filename
-const int PerfJitLogger::kFilenameBufferPadding = 16;
-
-PerfJitLogger::PerfJitLogger()
- : perf_output_handle_(NULL) {
- // Open the perf JIT dump file.
- int bufferSize = sizeof(kFilenameFormatString) + kFilenameBufferPadding;
- ScopedVector<char> perf_dump_name(bufferSize);
- int size = SNPrintF(
- perf_dump_name,
- kFilenameFormatString,
- base::OS::GetCurrentProcessId());
- CHECK_NE(size, -1);
- perf_output_handle_ =
- base::OS::FOpen(perf_dump_name.start(), base::OS::LogFileOpenMode);
- CHECK_NE(perf_output_handle_, NULL);
- setvbuf(perf_output_handle_, NULL, _IOFBF, kLogBufferSize);
-
- LogWriteHeader();
-}
-
-
-PerfJitLogger::~PerfJitLogger() {
- fclose(perf_output_handle_);
- perf_output_handle_ = NULL;
-}
-
-
-void PerfJitLogger::LogRecordedBuffer(Code* code,
- SharedFunctionInfo*,
- const char* name,
- int length) {
- ASSERT(code->instruction_start() == code->address() + Code::kHeaderSize);
- ASSERT(perf_output_handle_ != NULL);
-
- const char* code_name = name;
- uint8_t* code_pointer = reinterpret_cast<uint8_t*>(code->instruction_start());
- uint32_t code_size = code->instruction_size();
-
- static const char string_terminator[] = "\0";
-
- jr_code_load code_load;
- code_load.id = JIT_CODE_LOAD;
- code_load.total_size = sizeof(code_load) + length + 1 + code_size;
- code_load.timestamp =
- static_cast<uint64_t>(base::OS::TimeCurrentMillis() * 1000.0);
- code_load.vma = 0x0; // Our addresses are absolute.
- code_load.code_addr = reinterpret_cast<uint64_t>(code->instruction_start());
- code_load.code_size = code_size;
- code_load.align = 0;
-
- LogWriteBytes(reinterpret_cast<const char*>(&code_load), sizeof(code_load));
- LogWriteBytes(code_name, length);
- LogWriteBytes(string_terminator, 1);
- LogWriteBytes(reinterpret_cast<const char*>(code_pointer), code_size);
-}
-
-
-void PerfJitLogger::LogWriteBytes(const char* bytes, int size) {
- size_t rv = fwrite(bytes, 1, size, perf_output_handle_);
- ASSERT(static_cast<size_t>(size) == rv);
- USE(rv);
-}
-
-
-void PerfJitLogger::LogWriteHeader() {
- ASSERT(perf_output_handle_ != NULL);
- jitheader header;
- header.magic = kJitHeaderMagic;
- header.version = kJitHeaderVersion;
- header.total_size = sizeof(jitheader);
- header.pad1 = 0xdeadbeef;
- header.elf_mach = GetElfMach();
- header.pid = base::OS::GetCurrentProcessId();
- header.timestamp =
- static_cast<uint64_t>(base::OS::TimeCurrentMillis() * 1000.0);
- LogWriteBytes(reinterpret_cast<const char*>(&header), sizeof(header));
-}
-
-
// Low-level logging support.
#define LL_LOG(Call) if (ll_logger_) ll_logger_->Call;
« no previous file with comments | « src/isolate.cc ('k') | src/perf-jit.h » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698