From 767dd17947f1ae9dd3d02f738d442a23ed76f2f6 Mon Sep 17 00:00:00 2001 From: Yabin Cui Date: Thu, 2 Jun 2016 21:02:43 -0700 Subject: simpleperf: add report-sample command. 1. Add report-sample command to report each sample with symbol information. 2. Add --dump-symbols option to record command to collect dso and symbol information in perf.data. Bug: 28114205 Change-Id: I37424ee6abd74a21ad41cd3b6c4249cf0625c201 --- simpleperf/record.cpp | 410 ++++++++++++++++++++++++++++++++------------------ 1 file changed, 267 insertions(+), 143 deletions(-) (limited to 'simpleperf/record.cpp') diff --git a/simpleperf/record.cpp b/simpleperf/record.cpp index 701b295c..a9cf67ce 100644 --- a/simpleperf/record.cpp +++ b/simpleperf/record.cpp @@ -23,18 +23,27 @@ #include #include +#include "dso.h" #include "environment.h" #include "perf_regs.h" #include "utils.h" static std::string RecordTypeToString(int record_type) { static std::unordered_map record_type_names = { - {PERF_RECORD_MMAP, "mmap"}, {PERF_RECORD_LOST, "lost"}, - {PERF_RECORD_COMM, "comm"}, {PERF_RECORD_EXIT, "exit"}, - {PERF_RECORD_THROTTLE, "throttle"}, {PERF_RECORD_UNTHROTTLE, "unthrottle"}, - {PERF_RECORD_FORK, "fork"}, {PERF_RECORD_READ, "read"}, - {PERF_RECORD_SAMPLE, "sample"}, {PERF_RECORD_BUILD_ID, "build_id"}, - {PERF_RECORD_MMAP2, "mmap2"}, {SIMPLE_PERF_RECORD_KERNEL_SYMBOL, "kernel_symbol"}, + {PERF_RECORD_MMAP, "mmap"}, + {PERF_RECORD_LOST, "lost"}, + {PERF_RECORD_COMM, "comm"}, + {PERF_RECORD_EXIT, "exit"}, + {PERF_RECORD_THROTTLE, "throttle"}, + {PERF_RECORD_UNTHROTTLE, "unthrottle"}, + {PERF_RECORD_FORK, "fork"}, + {PERF_RECORD_READ, "read"}, + {PERF_RECORD_SAMPLE, "sample"}, + {PERF_RECORD_BUILD_ID, "build_id"}, + {PERF_RECORD_MMAP2, "mmap2"}, + {SIMPLE_PERF_RECORD_KERNEL_SYMBOL, "kernel_symbol"}, + {SIMPLE_PERF_RECORD_DSO, "dso"}, + {SIMPLE_PERF_RECORD_SYMBOL, "symbol"}, }; auto it = record_type_names.find(record_type); @@ -64,9 +73,7 @@ void MoveToBinaryFormat(const T* data_p, size_t n, char*& p) { p += size; } -SampleId::SampleId() { - memset(this, 0, sizeof(SampleId)); -} +SampleId::SampleId() { memset(this, 0, sizeof(SampleId)); } // Return sample_id size in binary format. size_t SampleId::CreateContent(const perf_event_attr& attr, uint64_t event_id) { @@ -77,7 +84,8 @@ size_t SampleId::CreateContent(const perf_event_attr& attr, uint64_t event_id) { return Size(); } -void SampleId::ReadFromBinaryFormat(const perf_event_attr& attr, const char* p, const char* end) { +void SampleId::ReadFromBinaryFormat(const perf_event_attr& attr, const char* p, + const char* end) { sample_id_all = attr.sample_id_all; sample_type = attr.sample_type; if (sample_id_all) { @@ -129,7 +137,8 @@ void SampleId::WriteToBinaryFormat(char*& p) const { void SampleId::Dump(size_t indent) const { if (sample_id_all) { if (sample_type & PERF_SAMPLE_TID) { - PrintIndented(indent, "sample_id: pid %u, tid %u\n", tid_data.pid, tid_data.tid); + PrintIndented(indent, "sample_id: pid %u, tid %u\n", tid_data.pid, + tid_data.tid); } if (sample_type & PERF_SAMPLE_TIME) { PrintIndented(indent, "sample_id: time %" PRId64 "\n", time_data.time); @@ -138,10 +147,12 @@ void SampleId::Dump(size_t indent) const { PrintIndented(indent, "sample_id: id %" PRId64 "\n", id_data.id); } if (sample_type & PERF_SAMPLE_STREAM_ID) { - PrintIndented(indent, "sample_id: stream_id %" PRId64 "\n", stream_id_data.stream_id); + PrintIndented(indent, "sample_id: stream_id %" PRId64 "\n", + stream_id_data.stream_id); } if (sample_type & PERF_SAMPLE_CPU) { - PrintIndented(indent, "sample_id: cpu %u, res %u\n", cpu_data.cpu, cpu_data.res); + PrintIndented(indent, "sample_id: cpu %u, res %u\n", cpu_data.cpu, + cpu_data.res); } } } @@ -178,11 +189,10 @@ void Record::Dump(size_t indent) const { sample_id.Dump(indent + 1); } -uint64_t Record::Timestamp() const { - return sample_id.time_data.time; -} +uint64_t Record::Timestamp() const { return sample_id.time_data.time; } -MmapRecord::MmapRecord(const perf_event_attr& attr, const perf_event_header* pheader) +MmapRecord::MmapRecord(const perf_event_attr& attr, + const perf_event_header* pheader) : Record(pheader) { const char* p = reinterpret_cast(pheader + 1); const char* end = reinterpret_cast(pheader) + size(); @@ -205,16 +215,39 @@ std::vector MmapRecord::BinaryFormat() const { } void MmapRecord::AdjustSizeBasedOnData() { - SetSize(header_size() + sizeof(data) + ALIGN(filename.size() + 1, 8) + sample_id.Size()); + SetSize(header_size() + sizeof(data) + ALIGN(filename.size() + 1, 8) + + sample_id.Size()); } void MmapRecord::DumpData(size_t indent) const { - PrintIndented(indent, "pid %u, tid %u, addr 0x%" PRIx64 ", len 0x%" PRIx64 "\n", data.pid, - data.tid, data.addr, data.len); - PrintIndented(indent, "pgoff 0x%" PRIx64 ", filename %s\n", data.pgoff, filename.c_str()); + PrintIndented(indent, + "pid %u, tid %u, addr 0x%" PRIx64 ", len 0x%" PRIx64 "\n", + data.pid, data.tid, data.addr, data.len); + PrintIndented(indent, "pgoff 0x%" PRIx64 ", filename %s\n", data.pgoff, + filename.c_str()); } -Mmap2Record::Mmap2Record(const perf_event_attr& attr, const perf_event_header* pheader) +MmapRecord MmapRecord::Create(const perf_event_attr& attr, bool in_kernel, + uint32_t pid, uint32_t tid, uint64_t addr, + uint64_t len, uint64_t pgoff, + const std::string& filename, uint64_t event_id) { + MmapRecord record; + record.SetTypeAndMisc(PERF_RECORD_MMAP, in_kernel ? PERF_RECORD_MISC_KERNEL + : PERF_RECORD_MISC_USER); + record.data.pid = pid; + record.data.tid = tid; + record.data.addr = addr; + record.data.len = len; + record.data.pgoff = pgoff; + record.filename = filename; + size_t sample_id_size = record.sample_id.CreateContent(attr, event_id); + record.SetSize(record.header_size() + sizeof(record.data) + + ALIGN(record.filename.size() + 1, 8) + sample_id_size); + return record; +} + +Mmap2Record::Mmap2Record(const perf_event_attr& attr, + const perf_event_header* pheader) : Record(pheader) { const char* p = reinterpret_cast(pheader + 1); const char* end = reinterpret_cast(pheader) + size(); @@ -237,20 +270,23 @@ std::vector Mmap2Record::BinaryFormat() const { } void Mmap2Record::AdjustSizeBasedOnData() { - SetSize(header_size() + sizeof(data) + ALIGN(filename.size() + 1, 8) + sample_id.Size()); + SetSize(header_size() + sizeof(data) + ALIGN(filename.size() + 1, 8) + + sample_id.Size()); } void Mmap2Record::DumpData(size_t indent) const { - PrintIndented(indent, "pid %u, tid %u, addr 0x%" PRIx64 ", len 0x%" PRIx64 "\n", data.pid, - data.tid, data.addr, data.len); PrintIndented(indent, - "pgoff 0x" PRIx64 ", maj %u, min %u, ino %" PRId64 ", ino_generation %" PRIu64 "\n", + "pid %u, tid %u, addr 0x%" PRIx64 ", len 0x%" PRIx64 "\n", + data.pid, data.tid, data.addr, data.len); + PrintIndented(indent, "pgoff 0x" PRIx64 ", maj %u, min %u, ino %" PRId64 + ", ino_generation %" PRIu64 "\n", data.pgoff, data.maj, data.min, data.ino, data.ino_generation); - PrintIndented(indent, "prot %u, flags %u, filenames %s\n", data.prot, data.flags, - filename.c_str()); + PrintIndented(indent, "prot %u, flags %u, filenames %s\n", data.prot, + data.flags, filename.c_str()); } -CommRecord::CommRecord(const perf_event_attr& attr, const perf_event_header* pheader) +CommRecord::CommRecord(const perf_event_attr& attr, + const perf_event_header* pheader) : Record(pheader) { const char* p = reinterpret_cast(pheader + 1); const char* end = reinterpret_cast(pheader) + size(); @@ -273,10 +309,26 @@ std::vector CommRecord::BinaryFormat() const { } void CommRecord::DumpData(size_t indent) const { - PrintIndented(indent, "pid %u, tid %u, comm %s\n", data.pid, data.tid, comm.c_str()); + PrintIndented(indent, "pid %u, tid %u, comm %s\n", data.pid, data.tid, + comm.c_str()); +} + +CommRecord CommRecord::Create(const perf_event_attr& attr, uint32_t pid, + uint32_t tid, const std::string& comm, + uint64_t event_id) { + CommRecord record; + record.SetTypeAndMisc(PERF_RECORD_COMM, 0); + record.data.pid = pid; + record.data.tid = tid; + record.comm = comm; + size_t sample_id_size = record.sample_id.CreateContent(attr, event_id); + record.SetSize(record.header_size() + sizeof(record.data) + + ALIGN(record.comm.size() + 1, 8) + sample_id_size); + return record; } -ExitOrForkRecord::ExitOrForkRecord(const perf_event_attr& attr, const perf_event_header* pheader) +ExitOrForkRecord::ExitOrForkRecord(const perf_event_attr& attr, + const perf_event_header* pheader) : Record(pheader) { const char* p = reinterpret_cast(pheader + 1); const char* end = reinterpret_cast(pheader) + size(); @@ -295,11 +347,27 @@ std::vector ExitOrForkRecord::BinaryFormat() const { } void ExitOrForkRecord::DumpData(size_t indent) const { - PrintIndented(indent, "pid %u, ppid %u, tid %u, ptid %u\n", data.pid, data.ppid, data.tid, - data.ptid); + PrintIndented(indent, "pid %u, ppid %u, tid %u, ptid %u\n", data.pid, + data.ppid, data.tid, data.ptid); } -SampleRecord::SampleRecord(const perf_event_attr& attr, const perf_event_header* pheader) +ForkRecord ForkRecord::Create(const perf_event_attr& attr, uint32_t pid, + uint32_t tid, uint32_t ppid, uint32_t ptid, + uint64_t event_id) { + ForkRecord record; + record.SetTypeAndMisc(PERF_RECORD_FORK, 0); + record.data.pid = pid; + record.data.ppid = ppid; + record.data.tid = tid; + record.data.ptid = ptid; + record.data.time = 0; + size_t sample_id_size = record.sample_id.CreateContent(attr, event_id); + record.SetSize(record.header_size() + sizeof(record.data) + sample_id_size); + return record; +} + +SampleRecord::SampleRecord(const perf_event_attr& attr, + const perf_event_header* pheader) : Record(pheader) { const char* p = reinterpret_cast(pheader + 1); const char* end = reinterpret_cast(pheader) + size(); @@ -433,7 +501,8 @@ std::vector SampleRecord::BinaryFormat() const { if (sample_type & PERF_SAMPLE_REGS_USER) { MoveToBinaryFormat(regs_user_data.abi, p); if (regs_user_data.abi != 0) { - MoveToBinaryFormat(regs_user_data.regs.data(), regs_user_data.regs.size(), p); + MoveToBinaryFormat(regs_user_data.regs.data(), regs_user_data.regs.size(), + p); } } if (sample_type & PERF_SAMPLE_STACK_USER) { @@ -445,8 +514,9 @@ std::vector SampleRecord::BinaryFormat() const { } } - // If record command does stack unwinding, sample records' size may be decreased. - // So we can't trust header.size here, and should adjust buffer size based on real need. + // If record command does stack unwinding, sample records' size may be + // decreased. So we can't trust header.size here, and should adjust buffer + // size based on real need. buf.resize(p - buf.data()); return buf; } @@ -454,7 +524,7 @@ std::vector SampleRecord::BinaryFormat() const { void SampleRecord::AdjustSizeBasedOnData() { size_t size = BinaryFormat().size(); LOG(DEBUG) << "Record (type " << RecordTypeToString(type()) - << ") size is changed from " << this->size() << " to " << size; + << ") size is changed from " << this->size() << " to " << size; SetSize(size); } @@ -485,23 +555,27 @@ void SampleRecord::DumpData(size_t indent) const { PrintIndented(indent, "period %" PRId64 "\n", period_data.period); } if (sample_type & PERF_SAMPLE_CALLCHAIN) { - PrintIndented(indent, "callchain nr=%" PRIu64 "\n", callchain_data.ips.size()); + PrintIndented(indent, "callchain nr=%" PRIu64 "\n", + callchain_data.ips.size()); for (auto& ip : callchain_data.ips) { PrintIndented(indent + 1, "0x%" PRIx64 "\n", ip); } } if (sample_type & PERF_SAMPLE_RAW) { PrintIndented(indent, "raw size=%zu\n", raw_data.data.size()); - const uint32_t* data = reinterpret_cast(raw_data.data.data()); + const uint32_t* data = + reinterpret_cast(raw_data.data.data()); size_t size = raw_data.data.size() / sizeof(uint32_t); for (size_t i = 0; i < size; ++i) { PrintIndented(indent + 1, "0x%08x (%zu)\n", data[i], data[i]); } } if (sample_type & PERF_SAMPLE_BRANCH_STACK) { - PrintIndented(indent, "branch_stack nr=%" PRIu64 "\n", branch_stack_data.stack.size()); + PrintIndented(indent, "branch_stack nr=%" PRIu64 "\n", + branch_stack_data.stack.size()); for (auto& item : branch_stack_data.stack) { - PrintIndented(indent + 1, "from 0x%" PRIx64 ", to 0x%" PRIx64 ", flags 0x%" PRIx64 "\n", + PrintIndented(indent + 1, "from 0x%" PRIx64 ", to 0x%" PRIx64 + ", flags 0x%" PRIx64 "\n", item.from, item.to, item.flags); } } @@ -509,16 +583,18 @@ void SampleRecord::DumpData(size_t indent) const { PrintIndented(indent, "user regs: abi=%" PRId64 "\n", regs_user_data.abi); for (size_t i = 0, pos = 0; i < 64; ++i) { if ((regs_user_data.reg_mask >> i) & 1) { - PrintIndented(indent + 1, "reg (%s) 0x%016" PRIx64 "\n", - GetRegName(i, ScopedCurrentArch::GetCurrentArch()).c_str(), - regs_user_data.regs[pos++]); + PrintIndented( + indent + 1, "reg (%s) 0x%016" PRIx64 "\n", + GetRegName(i, ScopedCurrentArch::GetCurrentArch()).c_str(), + regs_user_data.regs[pos++]); } } } if (sample_type & PERF_SAMPLE_STACK_USER) { PrintIndented(indent, "user stack: size %zu dyn_size %" PRIu64 "\n", stack_user_data.data.size(), stack_user_data.dyn_size); - const uint64_t* p = reinterpret_cast(stack_user_data.data.data()); + const uint64_t* p = + reinterpret_cast(stack_user_data.data.data()); const uint64_t* end = p + (stack_user_data.data.size() / sizeof(uint64_t)); while (p < end) { PrintIndented(indent + 1, ""); @@ -531,11 +607,10 @@ void SampleRecord::DumpData(size_t indent) const { } } -uint64_t SampleRecord::Timestamp() const { - return time_data.time; -} +uint64_t SampleRecord::Timestamp() const { return time_data.time; } -BuildIdRecord::BuildIdRecord(const perf_event_header* pheader) : Record(pheader) { +BuildIdRecord::BuildIdRecord(const perf_event_header* pheader) + : Record(pheader) { const char* p = reinterpret_cast(pheader + 1); const char* end = reinterpret_cast(pheader) + size(); MoveFromBinaryFormat(pid, p); @@ -563,7 +638,24 @@ void BuildIdRecord::DumpData(size_t indent) const { PrintIndented(indent, "filename %s\n", filename.c_str()); } -KernelSymbolRecord::KernelSymbolRecord(const perf_event_header* pheader) : Record(pheader) { +BuildIdRecord BuildIdRecord::Create(bool in_kernel, pid_t pid, + const BuildId& build_id, + const std::string& filename) { + BuildIdRecord record; + record.SetTypeAndMisc(PERF_RECORD_BUILD_ID, in_kernel + ? PERF_RECORD_MISC_KERNEL + : PERF_RECORD_MISC_USER); + record.pid = pid; + record.build_id = build_id; + record.filename = filename; + record.SetSize(record.header_size() + sizeof(record.pid) + + ALIGN(record.build_id.Size(), 8) + + ALIGN(filename.size() + 1, 64)); + return record; +} + +KernelSymbolRecord::KernelSymbolRecord(const perf_event_header* pheader) + : Record(pheader) { const char* p = reinterpret_cast(pheader + 1); const char* end = reinterpret_cast(pheader) + size(); uint32_t end_flag; @@ -592,11 +684,114 @@ std::vector KernelSymbolRecord::BinaryFormat() const { } void KernelSymbolRecord::DumpData(size_t indent) const { - PrintIndented(indent, "end_of_symbols: %s\n", end_of_symbols ? "true" : "false"); + PrintIndented(indent, "end_of_symbols: %s\n", + end_of_symbols ? "true" : "false"); PrintIndented(indent, "kallsyms: %s\n", kallsyms.c_str()); } -UnknownRecord::UnknownRecord(const perf_event_header* pheader) : Record(pheader) { +std::vector KernelSymbolRecord::Create( + const std::string& kallsyms) { + std::vector result; + size_t left_bytes = kallsyms.size(); + const size_t max_bytes_per_record = 64000; + const char* p = kallsyms.c_str(); + while (left_bytes > 0) { + size_t used_bytes = std::min(left_bytes, max_bytes_per_record); + KernelSymbolRecord r; + r.SetTypeAndMisc(SIMPLE_PERF_RECORD_KERNEL_SYMBOL, 0); + r.end_of_symbols = (used_bytes == left_bytes); + r.kallsyms.assign(p, used_bytes); + r.SetSize(r.header_size() + 8 + ALIGN(r.kallsyms.size(), 8)); + result.push_back(r); + p += used_bytes; + left_bytes -= used_bytes; + } + return result; +} + +DsoRecord::DsoRecord(const perf_event_header* pheader) : Record(pheader) { + const char* p = reinterpret_cast(pheader + 1); + const char* end = reinterpret_cast(pheader) + size(); + MoveFromBinaryFormat(dso_type, p); + MoveFromBinaryFormat(dso_id, p); + dso_name = p; + p += ALIGN(dso_name.size() + 1, 8); + CHECK_EQ(p, end); +} + +std::vector DsoRecord::BinaryFormat() const { + std::vector buf(size()); + char* p = buf.data(); + MoveToBinaryFormat(header, p); + MoveToBinaryFormat(dso_type, p); + MoveToBinaryFormat(dso_id, p); + strcpy(p, dso_name.c_str()); + return buf; +} + +void DsoRecord::DumpData(size_t indent) const { + PrintIndented(indent, "dso_type: %s(%" PRIu64 ")\n", + DsoTypeToString(static_cast(dso_type)), dso_type); + PrintIndented(indent, "dso_id: %" PRIu64 "\n", dso_id); + PrintIndented(indent, "dso_name: %s\n", dso_name.c_str()); +} + +DsoRecord DsoRecord::Create(uint64_t dso_type, uint64_t dso_id, + const std::string& dso_name) { + DsoRecord record; + record.SetTypeAndMisc(SIMPLE_PERF_RECORD_DSO, 0); + record.dso_type = dso_type; + record.dso_id = dso_id; + record.dso_name = dso_name; + record.SetSize(record.header_size() + 2 * sizeof(uint64_t) + + ALIGN(record.dso_name.size() + 1, 8)); + return record; +} + +SymbolRecord::SymbolRecord(const perf_event_header* pheader) : Record(pheader) { + const char* p = reinterpret_cast(pheader + 1); + const char* end = reinterpret_cast(pheader) + size(); + MoveFromBinaryFormat(addr, p); + MoveFromBinaryFormat(len, p); + MoveFromBinaryFormat(dso_id, p); + name = p; + p += ALIGN(name.size() + 1, 8); + CHECK_EQ(p, end); +} + +std::vector SymbolRecord::BinaryFormat() const { + std::vector buf(size()); + char* p = buf.data(); + MoveToBinaryFormat(header, p); + MoveToBinaryFormat(addr, p); + MoveToBinaryFormat(len, p); + MoveToBinaryFormat(dso_id, p); + strcpy(p, name.c_str()); + return buf; +} + +void SymbolRecord::DumpData(size_t indent) const { + PrintIndented(indent, "name: %s\n", name.c_str()); + PrintIndented(indent, "addr: 0x%" PRIx64 "\n", addr); + PrintIndented(indent, "len: 0x%" PRIx64 "\n", len); + PrintIndented(indent, "dso_id: %" PRIu64 "\n", dso_id); +} + +SymbolRecord SymbolRecord::Create(uint64_t addr, uint64_t len, + const std::string& name, uint64_t dso_id) { + SymbolRecord record; + record.SetTypeAndMisc(SIMPLE_PERF_RECORD_SYMBOL, 0); + record.addr = addr; + record.len = len; + record.dso_id = dso_id; + record.name = name; + record.SetSize(record.header_size() + 3 * sizeof(uint64_t) + + ALIGN(record.name.size() + 1, 8)); + return record; +} + +UnknownRecord::UnknownRecord(const perf_event_header* pheader) + : Record(pheader) { const char* p = reinterpret_cast(pheader + 1); const char* end = reinterpret_cast(pheader) + size(); data.insert(data.end(), p, end); @@ -610,8 +805,7 @@ std::vector UnknownRecord::BinaryFormat() const { return buf; } -void UnknownRecord::DumpData(size_t) const { -} +void UnknownRecord::DumpData(size_t) const {} std::unique_ptr ReadRecordFromBuffer(const perf_event_attr& attr, const perf_event_header* pheader) { @@ -630,18 +824,23 @@ std::unique_ptr ReadRecordFromBuffer(const perf_event_attr& attr, return std::unique_ptr(new SampleRecord(attr, pheader)); case SIMPLE_PERF_RECORD_KERNEL_SYMBOL: return std::unique_ptr(new KernelSymbolRecord(pheader)); + case SIMPLE_PERF_RECORD_DSO: + return std::unique_ptr(new DsoRecord(pheader)); + case SIMPLE_PERF_RECORD_SYMBOL: + return std::unique_ptr(new SymbolRecord(pheader)); default: return std::unique_ptr(new UnknownRecord(pheader)); } } -std::vector> ReadRecordsFromBuffer(const perf_event_attr& attr, - const char* buf, size_t buf_size) { +std::vector> ReadRecordsFromBuffer( + const perf_event_attr& attr, const char* buf, size_t buf_size) { std::vector> result; const char* p = buf; const char* end = buf + buf_size; while (p < end) { - const perf_event_header* header = reinterpret_cast(p); + const perf_event_header* header = + reinterpret_cast(p); uint32_t size = header->size; CHECK_LE(p + size, end); CHECK_NE(0u, size); @@ -651,82 +850,8 @@ std::vector> ReadRecordsFromBuffer(const perf_event_attr return result; } -MmapRecord CreateMmapRecord(const perf_event_attr& attr, bool in_kernel, uint32_t pid, uint32_t tid, - uint64_t addr, uint64_t len, uint64_t pgoff, - const std::string& filename, uint64_t event_id) { - MmapRecord record; - record.SetTypeAndMisc(PERF_RECORD_MMAP, in_kernel ? PERF_RECORD_MISC_KERNEL : PERF_RECORD_MISC_USER); - record.data.pid = pid; - record.data.tid = tid; - record.data.addr = addr; - record.data.len = len; - record.data.pgoff = pgoff; - record.filename = filename; - size_t sample_id_size = record.sample_id.CreateContent(attr, event_id); - record.SetSize(record.header_size() + sizeof(record.data) + - ALIGN(record.filename.size() + 1, 8) + sample_id_size); - return record; -} - -CommRecord CreateCommRecord(const perf_event_attr& attr, uint32_t pid, uint32_t tid, - const std::string& comm, uint64_t event_id) { - CommRecord record; - record.SetTypeAndMisc(PERF_RECORD_COMM, 0); - record.data.pid = pid; - record.data.tid = tid; - record.comm = comm; - size_t sample_id_size = record.sample_id.CreateContent(attr, event_id); - record.SetSize(record.header_size() + sizeof(record.data) + - ALIGN(record.comm.size() + 1, 8) + sample_id_size); - return record; -} - -ForkRecord CreateForkRecord(const perf_event_attr& attr, uint32_t pid, uint32_t tid, uint32_t ppid, - uint32_t ptid, uint64_t event_id) { - ForkRecord record; - record.SetTypeAndMisc(PERF_RECORD_FORK, 0); - record.data.pid = pid; - record.data.ppid = ppid; - record.data.tid = tid; - record.data.ptid = ptid; - record.data.time = 0; - size_t sample_id_size = record.sample_id.CreateContent(attr, event_id); - record.SetSize(record.header_size() + sizeof(record.data) + sample_id_size); - return record; -} - -BuildIdRecord CreateBuildIdRecord(bool in_kernel, pid_t pid, const BuildId& build_id, - const std::string& filename) { - BuildIdRecord record; - record.SetTypeAndMisc(PERF_RECORD_BUILD_ID, in_kernel ? PERF_RECORD_MISC_KERNEL : PERF_RECORD_MISC_USER); - record.pid = pid; - record.build_id = build_id; - record.filename = filename; - record.SetSize(record.header_size() + sizeof(record.pid) + - ALIGN(record.build_id.Size(), 8) + ALIGN(filename.size() + 1, 64)); - return record; -} - -std::vector CreateKernelSymbolRecords(const std::string& kallsyms) { - std::vector result; - size_t left_bytes = kallsyms.size(); - const size_t max_bytes_per_record = 64000; - const char* p = kallsyms.c_str(); - while (left_bytes > 0) { - size_t used_bytes = std::min(left_bytes, max_bytes_per_record); - KernelSymbolRecord r; - r.SetTypeAndMisc(SIMPLE_PERF_RECORD_KERNEL_SYMBOL, 0); - r.end_of_symbols = (used_bytes == left_bytes); - r.kallsyms.assign(p, used_bytes); - r.SetSize(r.header_size() + 8 + ALIGN(r.kallsyms.size(), 8)); - result.push_back(r); - p += used_bytes; - left_bytes -= used_bytes; - } - return result; -} - -bool RecordCache::RecordWithSeq::IsHappensBefore(const RecordWithSeq& other) const { +bool RecordCache::RecordWithSeq::IsHappensBefore( + const RecordWithSeq& other) const { bool is_sample = (record->type() == PERF_RECORD_SAMPLE); bool is_other_sample = (other.record->type() == PERF_RECORD_SAMPLE); uint64_t time = record->Timestamp(); @@ -735,8 +860,9 @@ bool RecordCache::RecordWithSeq::IsHappensBefore(const RecordWithSeq& other) con if (time != other_time) { return time < other_time; } - // If happening at the same time, make non-sample records before sample records, - // because non-sample records may contain useful information to parse sample records. + // If happening at the same time, make non-sample records before sample + // records, because non-sample records may contain useful information to + // parse sample records. if (is_sample != is_other_sample) { return is_sample ? false : true; } @@ -749,18 +875,16 @@ bool RecordCache::RecordComparator::operator()(const RecordWithSeq& r1, return r2.IsHappensBefore(r1); } -RecordCache::RecordCache(bool has_timestamp, size_t min_cache_size, uint64_t min_time_diff_in_ns) +RecordCache::RecordCache(bool has_timestamp, size_t min_cache_size, + uint64_t min_time_diff_in_ns) : has_timestamp_(has_timestamp), min_cache_size_(min_cache_size), min_time_diff_in_ns_(min_time_diff_in_ns), last_time_(0), cur_seq_(0), - queue_(RecordComparator()) { -} + queue_(RecordComparator()) {} -RecordCache::~RecordCache() { - PopAll(); -} +RecordCache::~RecordCache() { PopAll(); } void RecordCache::Push(std::unique_ptr record) { if (has_timestamp_) { @@ -798,7 +922,7 @@ std::vector> RecordCache::PopAll() { return result; } -RecordCache::RecordWithSeq RecordCache::CreateRecordWithSeq(Record *r) { +RecordCache::RecordWithSeq RecordCache::CreateRecordWithSeq(Record* r) { RecordWithSeq result; result.seq = cur_seq_++; result.record = r; -- cgit v1.2.3