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Diffstat (limited to 'daemon/PerfGroup.cpp')
-rw-r--r--daemon/PerfGroup.cpp28
1 files changed, 4 insertions, 24 deletions
diff --git a/daemon/PerfGroup.cpp b/daemon/PerfGroup.cpp
index 2a0239f..faf5fca 100644
--- a/daemon/PerfGroup.cpp
+++ b/daemon/PerfGroup.cpp
@@ -23,9 +23,7 @@
23#define DEFAULT_PEA_ARGS(pea, additionalSampleType) \ 23#define DEFAULT_PEA_ARGS(pea, additionalSampleType) \
24 pea.size = sizeof(pea); \ 24 pea.size = sizeof(pea); \
25 /* Emit time, read_format below, group leader id, and raw tracepoint info */ \ 25 /* Emit time, read_format below, group leader id, and raw tracepoint info */ \
26 pea.sample_type = (gSessionData->perf.getLegacySupport() \ 26 pea.sample_type = PERF_SAMPLE_TIME | PERF_SAMPLE_READ | PERF_SAMPLE_IDENTIFIER | additionalSampleType; \
27 ? PERF_SAMPLE_TID | PERF_SAMPLE_IP | PERF_SAMPLE_TIME | PERF_SAMPLE_READ | PERF_SAMPLE_ID \
28 : PERF_SAMPLE_TIME | PERF_SAMPLE_READ | PERF_SAMPLE_IDENTIFIER ) | additionalSampleType; \
29 /* Emit emit value in group format */ \ 27 /* Emit emit value in group format */ \
30 pea.read_format = PERF_FORMAT_ID | PERF_FORMAT_GROUP; \ 28 pea.read_format = PERF_FORMAT_ID | PERF_FORMAT_GROUP; \
31 /* start out disabled */ \ 29 /* start out disabled */ \
@@ -41,7 +39,6 @@ static int sys_perf_event_open(struct perf_event_attr *const attr, const pid_t p
41 39
42PerfGroup::PerfGroup(PerfBuffer *const pb) : mPb(pb) { 40PerfGroup::PerfGroup(PerfBuffer *const pb) : mPb(pb) {
43 memset(&mAttrs, 0, sizeof(mAttrs)); 41 memset(&mAttrs, 0, sizeof(mAttrs));
44 memset(&mPerCpu, 0, sizeof(mPerCpu));
45 memset(&mKeys, -1, sizeof(mKeys)); 42 memset(&mKeys, -1, sizeof(mKeys));
46 memset(&mFds, -1, sizeof(mFds)); 43 memset(&mFds, -1, sizeof(mFds));
47} 44}
@@ -78,7 +75,6 @@ bool PerfGroup::add(Buffer *const buffer, const int key, const __u32 type, const
78 mAttrs[i].freq = (flags & PERF_GROUP_FREQ ? 1 : 0); 75 mAttrs[i].freq = (flags & PERF_GROUP_FREQ ? 1 : 0);
79 mAttrs[i].task = (flags & PERF_GROUP_TASK ? 1 : 0); 76 mAttrs[i].task = (flags & PERF_GROUP_TASK ? 1 : 0);
80 mAttrs[i].sample_id_all = (flags & PERF_GROUP_SAMPLE_ID_ALL ? 1 : 0); 77 mAttrs[i].sample_id_all = (flags & PERF_GROUP_SAMPLE_ID_ALL ? 1 : 0);
81 mPerCpu[i] = (flags & PERF_GROUP_PER_CPU);
82 78
83 mKeys[i] = key; 79 mKeys[i] = key;
84 80
@@ -95,17 +91,13 @@ bool PerfGroup::prepareCPU(const int cpu) {
95 continue; 91 continue;
96 } 92 }
97 93
98 if ((cpu != 0) && !mPerCpu[i]) {
99 continue;
100 }
101
102 const int offset = i * gSessionData->mCores; 94 const int offset = i * gSessionData->mCores;
103 if (mFds[cpu + offset] >= 0) { 95 if (mFds[cpu + offset] >= 0) {
104 logg->logMessage("%s(%s:%i): cpu already online or not correctly cleaned up", __FUNCTION__, __FILE__, __LINE__); 96 logg->logMessage("%s(%s:%i): cpu already online or not correctly cleaned up", __FUNCTION__, __FILE__, __LINE__);
105 return false; 97 return false;
106 } 98 }
107 99
108 logg->logMessage("%s(%s:%i): perf_event_open cpu: %i type: %lli config: %lli sample: %lli sample_type: 0x%llx pinned: %i mmap: %i comm: %i freq: %i task: %i sample_id_all: %i", __FUNCTION__, __FILE__, __LINE__, cpu, (long long)mAttrs[i].type, (long long)mAttrs[i].config, (long long)mAttrs[i].sample_period, (long long)mAttrs[i].sample_type, mAttrs[i].pinned, mAttrs[i].mmap, mAttrs[i].comm, mAttrs[i].freq, mAttrs[i].task, mAttrs[i].sample_id_all); 100 logg->logMessage("%s(%s:%i): perf_event_open cpu: %i type: %lli config: %lli sample: %lli sample_type: %lli", __FUNCTION__, __FILE__, __LINE__, cpu, (long long)mAttrs[i].type, (long long)mAttrs[i].config, (long long)mAttrs[i].sample_period, (long long)mAttrs[i].sample_type);
109 mFds[cpu + offset] = sys_perf_event_open(&mAttrs[i], -1, cpu, i == 0 ? -1 : mFds[cpu], i == 0 ? 0 : PERF_FLAG_FD_OUTPUT); 101 mFds[cpu + offset] = sys_perf_event_open(&mAttrs[i], -1, cpu, i == 0 ? -1 : mFds[cpu], i == 0 ? 0 : PERF_FLAG_FD_OUTPUT);
110 if (mFds[cpu + offset] < 0) { 102 if (mFds[cpu + offset] < 0) {
111 logg->logMessage("%s(%s:%i): failed %s", __FUNCTION__, __FILE__, __LINE__, strerror(errno)); 103 logg->logMessage("%s(%s:%i): failed %s", __FUNCTION__, __FILE__, __LINE__, strerror(errno));
@@ -133,9 +125,7 @@ int PerfGroup::onlineCPU(const int cpu, const bool start, Buffer *const buffer,
133 } 125 }
134 126
135 coreKeys[idCount] = mKeys[i]; 127 coreKeys[idCount] = mKeys[i];
136 if (!gSessionData->perf.getLegacySupport() && ioctl(fd, PERF_EVENT_IOC_ID, &ids[idCount]) != 0 && 128 if (ioctl(fd, PERF_EVENT_IOC_ID, &ids[idCount]) != 0) {
137 // Workaround for running 32-bit gatord on 64-bit systems, kernel patch in the works
138 ioctl(fd, (PERF_EVENT_IOC_ID & ~IOCSIZE_MASK) | (8 << _IOC_SIZESHIFT), &ids[idCount]) != 0) {
139 logg->logMessage("%s(%s:%i): ioctl failed", __FUNCTION__, __FILE__, __LINE__); 129 logg->logMessage("%s(%s:%i): ioctl failed", __FUNCTION__, __FILE__, __LINE__);
140 return false; 130 return false;
141 } 131 }
@@ -147,17 +137,7 @@ int PerfGroup::onlineCPU(const int cpu, const bool start, Buffer *const buffer,
147 return false; 137 return false;
148 } 138 }
149 139
150 if (!gSessionData->perf.getLegacySupport()) { 140 buffer->keys(idCount, ids, coreKeys);
151 buffer->keys(idCount, ids, coreKeys);
152 } else {
153 char buf[1024];
154 ssize_t bytes = read(mFds[cpu], buf, sizeof(buf));
155 if (bytes < 0) {
156 logg->logMessage("read failed");
157 return false;
158 }
159 buffer->keysOld(idCount, coreKeys, bytes, buf);
160 }
161 141
162 if (start) { 142 if (start) {
163 for (int i = 0; i < ARRAY_LENGTH(mKeys); ++i) { 143 for (int i = 0; i < ARRAY_LENGTH(mKeys); ++i) {