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Merge pull request #13268 from alalek:core_findfile_linux_use_dladdr

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This commit is contained in:
Alexander Alekhin 2018-11-25 18:26:28 +00:00
commit 36b6bcb674
1 changed files with 5 additions and 20 deletions
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25
modules/core/src/utils/datafile.cpp
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@ -24,6 +24,8 @@
#undef min
#undef max
#undef abs
#elif defined(__linux__)
#include <dlfcn.h> // requires -ldl
#elif defined(__APPLE__)
#include <TargetConditionals.h>
#if TARGET_OS_MAC
@ -123,27 +125,10 @@ static cv::String getModuleLocation(const void* addr)
}
}
#elif defined(__linux__)
std::ifstream fs("/proc/self/maps");
std::string line;
while (std::getline(fs, line, '\n'))
Dl_info info;
if (0 != dladdr(addr, &info))
{
long long int addr_begin = 0, addr_end = 0;
if (2 == sscanf(line.c_str(), "%llx-%llx", &addr_begin, &addr_end))
{
if ((intptr_t)addr >= (intptr_t)addr_begin && (intptr_t)addr < (intptr_t)addr_end)
{
size_t pos = line.rfind(" "); // 2 spaces
if (pos == cv::String::npos)
pos = line.rfind(' '); // 1 spaces
else
pos++;
if (pos == cv::String::npos)
{
CV_LOG_DEBUG(NULL, "Can't parse module path: '" << line << '\'');
}
return line.substr(pos + 1);
}
}
return cv::String(info.dli_fname);
}
#elif defined(__APPLE__)
# if TARGET_OS_MAC