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34
35 #include "BacktraceImpl.hpp"
36
37 #include <execinfo.h> // backtrace
38 #include <dlfcn.h> // dladdr
39
40 namespace pdal
41 {
42
backtraceImpl()43 Utils::BacktraceEntries Utils::backtraceImpl()
44 {
45 Utils::BacktraceEntries entries;
46 const int MAX_STACK_SIZE(100);
47 void* buffer[MAX_STACK_SIZE];
48
49 std::size_t size(::backtrace(buffer, MAX_STACK_SIZE));
50
51 for (size_t i = 0; i < size && i < MAX_STACK_SIZE; ++i)
52 {
53 BacktraceEntry entry;
54
55 entry.addr = buffer[i];
56
57 Dl_info info;
58 if (dladdr(entry.addr, &info))
59 {
60 entry.symname = info.dli_sname;
61 entry.libname = info.dli_fname;
62 entry.offset = reinterpret_cast<char *>(entry.addr) -
63 reinterpret_cast<char *>(info.dli_saddr);
64 }
65 entries.push_back(entry);
66 }
67 return entries;
68 }
69
70 } // namespace pdal
71