Merge "procinfo: Read inode number from /proc/<pid>/maps"
diff --git a/libbacktrace/BacktraceMap.cpp b/libbacktrace/BacktraceMap.cpp
index 6a967f7..781819a 100644
--- a/libbacktrace/BacktraceMap.cpp
+++ b/libbacktrace/BacktraceMap.cpp
@@ -46,8 +46,7 @@
}
}
-BacktraceMap::~BacktraceMap() {
-}
+BacktraceMap::~BacktraceMap() {}
void BacktraceMap::FillIn(uint64_t addr, backtrace_map_t* map) {
ScopedBacktraceMapIteratorLock lock(this);
@@ -68,12 +67,13 @@
char permissions[5];
int name_pos;
-// Mac OS vmmap(1) output:
-// __TEXT 0009f000-000a1000 [ 8K 8K] r-x/rwx SM=COW /Volumes/android/dalvik-dev/out/host/darwin-x86/bin/libcorkscrew_test\n
-// 012345678901234567890123456789012345678901234567890123456789
-// 0 1 2 3 4 5
- if (sscanf(line, "%*21c %" SCNx64 "-%" SCNx64 " [%*13c] %3c/%*3c SM=%*3c %n",
- &start, &end, permissions, &name_pos) != 3) {
+ // Mac OS vmmap(1) output:
+ // __TEXT 0009f000-000a1000 [ 8K 8K] r-x/rwx SM=COW
+ // /Volumes/android/dalvik-dev/out/host/darwin-x86/bin/libcorkscrew_test\n
+ // 012345678901234567890123456789012345678901234567890123456789
+ // 0 1 2 3 4 5
+ if (sscanf(line, "%*21c %" SCNx64 "-%" SCNx64 " [%*13c] %3c/%*3c SM=%*3c %n", &start, &end,
+ permissions, &name_pos) != 3) {
return false;
}
@@ -90,21 +90,21 @@
map->flags |= PROT_EXEC;
}
- map->name = line+name_pos;
- if (!map->name.empty() && map->name[map->name.length()-1] == '\n') {
- map->name.erase(map->name.length()-1);
+ map->name = line + name_pos;
+ if (!map->name.empty() && map->name[map->name.length() - 1] == '\n') {
+ map->name.erase(map->name.length() - 1);
}
- ALOGV("Parsed map: start=%p, end=%p, flags=%x, name=%s",
- reinterpret_cast<void*>(map->start), reinterpret_cast<void*>(map->end),
- map->flags, map->name.c_str());
+ ALOGV("Parsed map: start=%p, end=%p, flags=%x, name=%s", reinterpret_cast<void*>(map->start),
+ reinterpret_cast<void*>(map->end), map->flags, map->name.c_str());
return true;
}
#endif // defined(__APPLE__)
bool BacktraceMap::Build() {
#if defined(__APPLE__)
- char cmd[sizeof(pid_t)*3 + sizeof("vmmap -w -resident -submap -allSplitLibs -interleaved ") + 1];
+ char
+ cmd[sizeof(pid_t) * 3 + sizeof("vmmap -w -resident -submap -allSplitLibs -interleaved ") + 1];
char line[1024];
// cmd is guaranteed to always be big enough to hold this string.
snprintf(cmd, sizeof(cmd), "vmmap -w -resident -submap -allSplitLibs -interleaved %d", pid_);
@@ -113,7 +113,7 @@
return false;
}
- while(fgets(line, sizeof(line), fp)) {
+ while (fgets(line, sizeof(line), fp)) {
backtrace_map_t map;
if (ParseLine(line, &map)) {
maps_.push_back(map);
@@ -123,7 +123,7 @@
return true;
#else
return android::procinfo::ReadProcessMaps(
- pid_, [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t, const char* name) {
+ pid_, [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t, ino_t, const char* name) {
maps_.resize(maps_.size() + 1);
backtrace_map_t& map = maps_.back();
map.start = start;
diff --git a/libmeminfo/libdmabufinfo/dmabufinfo.cpp b/libmeminfo/libdmabufinfo/dmabufinfo.cpp
index 439cf68..9fb22a1 100644
--- a/libmeminfo/libdmabufinfo/dmabufinfo.cpp
+++ b/libmeminfo/libdmabufinfo/dmabufinfo.cpp
@@ -150,18 +150,14 @@
auto buf = std::find_if(dmabufs->begin(), dmabufs->end(),
[&inode](const DmaBuffer& dbuf) { return dbuf.inode() == inode; });
if (buf != dmabufs->end()) {
- if (buf->name() == "" || buf->name() == "<unknown>")
- buf->SetName(name);
- if (buf->exporter() == "" || buf->exporter() == "<unknown>")
- buf->SetExporter(exporter);
- if (buf->count() == 0)
- buf->SetCount(count);
+ if (buf->name() == "" || buf->name() == "<unknown>") buf->SetName(name);
+ if (buf->exporter() == "" || buf->exporter() == "<unknown>") buf->SetExporter(exporter);
+ if (buf->count() == 0) buf->SetCount(count);
buf->AddFdRef(pid);
continue;
}
- DmaBuffer& db =
- dmabufs->emplace_back(sb.st_ino, sb.st_blocks * 512, count, exporter, name);
+ DmaBuffer& db = dmabufs->emplace_back(sb.st_ino, sb.st_blocks * 512, count, exporter, name);
db.AddFdRef(pid);
}
@@ -182,29 +178,12 @@
// Process the map if it is dmabuf. Add map reference to existing object in 'dmabufs'
// if it was already found. If it wasn't create a new one and append it to 'dmabufs'
auto account_dmabuf = [&](uint64_t start, uint64_t end, uint16_t /* flags */,
- uint64_t /* pgoff */, const char* name) {
+ uint64_t /* pgoff */, ino_t inode, const char* name) {
// no need to look into this mapping if it is not dmabuf
if (!FileIsDmaBuf(std::string(name))) {
return;
}
- // TODO (b/123532375) : Add inode number to the callback of ReadMapFileContent.
- //
- // Workaround: we know 'name' points to the name at the end of 'line'.
- // We use that to backtrack and pick up the inode number from the line as well.
- // start end flag pgoff mj:mn inode name
- // 00400000-00409000 r-xp 00000000 00:00 426998 /dmabuf (deleted)
- const char* p = name;
- p--;
- // skip spaces
- while (p != line && *p == ' ') {
- p--;
- }
- // walk backwards to the beginning of inode number
- while (p != line && isdigit(*p)) {
- p--;
- }
- uint64_t inode = strtoull(p, nullptr, 10);
auto buf = std::find_if(dmabufs->begin(), dmabufs->end(),
[&inode](const DmaBuffer& dbuf) { return dbuf.inode() == inode; });
if (buf != dmabufs->end()) {
diff --git a/libmeminfo/procmeminfo.cpp b/libmeminfo/procmeminfo.cpp
index 069b6b3..934d65c 100644
--- a/libmeminfo/procmeminfo.cpp
+++ b/libmeminfo/procmeminfo.cpp
@@ -246,7 +246,7 @@
// parse and read /proc/<pid>/maps
std::string maps_file = ::android::base::StringPrintf("/proc/%d/maps", pid_);
if (!::android::procinfo::ReadMapFile(
- maps_file, [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff,
+ maps_file, [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, ino_t,
const char* name) {
maps_.emplace_back(Vma(start, end, pgoff, flags, name));
})) {
@@ -394,7 +394,7 @@
// If it has, we are looking for the vma stats
// 00400000-00409000 r-xp 00000000 fc:00 426998 /usr/lib/gvfs/gvfsd-http
if (!::android::procinfo::ReadMapFileContent(
- line, [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff,
+ line, [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, ino_t,
const char* name) {
vma.start = start;
vma.end = end;
diff --git a/libmemunreachable/ProcessMappings.cpp b/libmemunreachable/ProcessMappings.cpp
index 701ce16..8e1be4c 100644
--- a/libmemunreachable/ProcessMappings.cpp
+++ b/libmemunreachable/ProcessMappings.cpp
@@ -18,6 +18,7 @@
#include <fcntl.h>
#include <inttypes.h>
#include <string.h>
+#include <sys/types.h>
#include <unistd.h>
#include <android-base/unique_fd.h>
@@ -30,7 +31,8 @@
struct ReadMapCallback {
ReadMapCallback(allocator::vector<Mapping>& mappings) : mappings_(mappings) {}
- void operator()(uint64_t start, uint64_t end, uint16_t flags, uint64_t, const char* name) const {
+ void operator()(uint64_t start, uint64_t end, uint16_t flags, uint64_t, ino_t,
+ const char* name) const {
mappings_.emplace_back(start, end, flags & PROT_READ, flags & PROT_WRITE, flags & PROT_EXEC,
name);
}
diff --git a/libprocinfo/include/procinfo/process_map.h b/libprocinfo/include/procinfo/process_map.h
index 981241e..b6ec3cb 100644
--- a/libprocinfo/include/procinfo/process_map.h
+++ b/libprocinfo/include/procinfo/process_map.h
@@ -36,6 +36,7 @@
uint64_t end_addr;
uint16_t flags;
uint64_t pgoff;
+ ino_t inode;
char* next_line = content;
char* p;
@@ -124,18 +125,25 @@
return false;
}
// inode
- if (!pass_xdigit() || (*p != '\0' && !pass_space())) {
+ inode = strtoull(p, &end, 10);
+ if (end == p) {
return false;
}
+ p = end;
+
+ if (*p != '\0' && !pass_space()) {
+ return false;
+ }
+
// filename
- callback(start_addr, end_addr, flags, pgoff, p);
+ callback(start_addr, end_addr, flags, pgoff, inode, p);
}
return true;
}
-inline bool ReadMapFile(
- const std::string& map_file,
- const std::function<void(uint64_t, uint64_t, uint16_t, uint64_t, const char*)>& callback) {
+inline bool ReadMapFile(const std::string& map_file,
+ const std::function<void(uint64_t, uint64_t, uint16_t, uint64_t, ino_t,
+ const char*)>& callback) {
std::string content;
if (!android::base::ReadFileToString(map_file, &content)) {
return false;
@@ -143,9 +151,9 @@
return ReadMapFileContent(&content[0], callback);
}
-inline bool ReadProcessMaps(
- pid_t pid,
- const std::function<void(uint64_t, uint64_t, uint16_t, uint64_t, const char*)>& callback) {
+inline bool ReadProcessMaps(pid_t pid,
+ const std::function<void(uint64_t, uint64_t, uint16_t, uint64_t, ino_t,
+ const char*)>& callback) {
return ReadMapFile("/proc/" + std::to_string(pid) + "/maps", callback);
}
@@ -154,17 +162,18 @@
uint64_t end;
uint16_t flags;
uint64_t pgoff;
+ ino_t inode;
std::string name;
- MapInfo(uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, const char* name)
- : start(start), end(end), flags(flags), pgoff(pgoff), name(name) {}
+ MapInfo(uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, ino_t inode,
+ const char* name)
+ : start(start), end(end), flags(flags), pgoff(pgoff), inode(inode), name(name) {}
};
inline bool ReadProcessMaps(pid_t pid, std::vector<MapInfo>* maps) {
return ReadProcessMaps(
- pid, [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, const char* name) {
- maps->emplace_back(start, end, flags, pgoff, name);
- });
+ pid, [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, ino_t inode,
+ const char* name) { maps->emplace_back(start, end, flags, pgoff, inode, name); });
}
} /* namespace procinfo */
diff --git a/libprocinfo/process_map_benchmark.cpp b/libprocinfo/process_map_benchmark.cpp
index 04995d4..eba4fd0 100644
--- a/libprocinfo/process_map_benchmark.cpp
+++ b/libprocinfo/process_map_benchmark.cpp
@@ -17,6 +17,7 @@
#include <procinfo/process_map.h>
#include <string.h>
+#include <sys/types.h>
#include <string>
@@ -31,9 +32,10 @@
std::string map_file = android::base::GetExecutableDirectory() + "/testdata/maps";
for (auto _ : state) {
std::vector<android::procinfo::MapInfo> maps;
- android::procinfo::ReadMapFile(
- map_file, [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff,
- const char* name) { maps.emplace_back(start, end, flags, pgoff, name); });
+ android::procinfo::ReadMapFile(map_file, [&](uint64_t start, uint64_t end, uint16_t flags,
+ uint64_t pgoff, ino_t inode, const char* name) {
+ maps.emplace_back(start, end, flags, pgoff, inode, name);
+ });
CHECK_EQ(maps.size(), 2043u);
}
}
diff --git a/libprocinfo/process_map_test.cpp b/libprocinfo/process_map_test.cpp
index 170a806..562d864 100644
--- a/libprocinfo/process_map_test.cpp
+++ b/libprocinfo/process_map_test.cpp
@@ -26,23 +26,27 @@
std::string map_file = android::base::GetExecutableDirectory() + "/testdata/maps";
std::vector<android::procinfo::MapInfo> maps;
ASSERT_TRUE(android::procinfo::ReadMapFile(
- map_file, [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff,
- const char* name) { maps.emplace_back(start, end, flags, pgoff, name); }));
+ map_file,
+ [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, ino_t inode,
+ const char* name) { maps.emplace_back(start, end, flags, pgoff, inode, name); }));
ASSERT_EQ(2043u, maps.size());
ASSERT_EQ(maps[0].start, 0x12c00000ULL);
ASSERT_EQ(maps[0].end, 0x2ac00000ULL);
ASSERT_EQ(maps[0].flags, PROT_READ | PROT_WRITE);
ASSERT_EQ(maps[0].pgoff, 0ULL);
+ ASSERT_EQ(maps[0].inode, 10267643UL);
ASSERT_EQ(maps[0].name, "[anon:dalvik-main space (region space)]");
ASSERT_EQ(maps[876].start, 0x70e6c4f000ULL);
ASSERT_EQ(maps[876].end, 0x70e6c6b000ULL);
ASSERT_EQ(maps[876].flags, PROT_READ | PROT_EXEC);
ASSERT_EQ(maps[876].pgoff, 0ULL);
+ ASSERT_EQ(maps[876].inode, 2407UL);
ASSERT_EQ(maps[876].name, "/system/lib64/libutils.so");
ASSERT_EQ(maps[1260].start, 0x70e96fa000ULL);
ASSERT_EQ(maps[1260].end, 0x70e96fb000ULL);
ASSERT_EQ(maps[1260].flags, PROT_READ);
ASSERT_EQ(maps[1260].pgoff, 0ULL);
+ ASSERT_EQ(maps[1260].inode, 10266154UL);
ASSERT_EQ(maps[1260].name,
"[anon:dalvik-classes.dex extracted in memory from "
"/data/app/com.google.sample.tunnel-HGGRU03Gu1Mwkf_-RnFmvw==/base.apk]");
@@ -51,8 +55,9 @@
TEST(process_map, ReadProcessMaps) {
std::vector<android::procinfo::MapInfo> maps;
ASSERT_TRUE(android::procinfo::ReadProcessMaps(
- getpid(), [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff,
- const char* name) { maps.emplace_back(start, end, flags, pgoff, name); }));
+ getpid(),
+ [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, ino_t inode,
+ const char* name) { maps.emplace_back(start, end, flags, pgoff, inode, name); }));
ASSERT_GT(maps.size(), 0u);
maps.clear();
ASSERT_TRUE(android::procinfo::ReadProcessMaps(getpid(), &maps));
diff --git a/libunwindstack/Maps.cpp b/libunwindstack/Maps.cpp
index c90e383..1e4f72e 100644
--- a/libunwindstack/Maps.cpp
+++ b/libunwindstack/Maps.cpp
@@ -62,7 +62,7 @@
bool Maps::Parse() {
return android::procinfo::ReadMapFile(
GetMapsFile(),
- [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, const char* name) {
+ [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, ino_t, const char* name) {
// Mark a device map in /dev/ and not in /dev/ashmem/ specially.
if (strncmp(name, "/dev/", 5) == 0 && strncmp(name + 5, "ashmem/", 7) != 0) {
flags |= unwindstack::MAPS_FLAGS_DEVICE_MAP;
@@ -102,7 +102,7 @@
std::string content(buffer_);
return android::procinfo::ReadMapFileContent(
&content[0],
- [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, const char* name) {
+ [&](uint64_t start, uint64_t end, uint16_t flags, uint64_t pgoff, ino_t, const char* name) {
// Mark a device map in /dev/ and not in /dev/ashmem/ specially.
if (strncmp(name, "/dev/", 5) == 0 && strncmp(name + 5, "ashmem/", 7) != 0) {
flags |= unwindstack::MAPS_FLAGS_DEVICE_MAP;
