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rtems-exeinfo.cpp: Fix division by zero errors

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CID 1503008: Division or modulo by zero
CID 1503015: Division or modulo by zero

Closes #4416
This commit is contained in:
Ryan Long 2021-05-17 11:37:42 -04:00 committed by Joel Sherrill
parent ffbf313928
commit 7d3b8acf60
1 changed files with 16 additions and 4 deletions
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20
linkers/rtems-exeinfo.cpp
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@ -755,6 +755,8 @@ namespace rld
size_t total = 0; size_t total = 0;
size_t total_size = 0; size_t total_size = 0;
size_t inlined_size = 0; size_t inlined_size = 0;
double percentage;
double percentage_size;
dwarf::functions funcs_inlined; dwarf::functions funcs_inlined;
dwarf::functions funcs_not_inlined; dwarf::functions funcs_not_inlined;
func_counts counts; func_counts counts;
@ -798,14 +800,24 @@ namespace rld
} }
} }
if ( total == 0 ) {
percentage = 0;
} else {
percentage = (double) ( funcs_inlined.size() * 100 ) / total;
}
if ( total_size == 0 ) {
percentage_size = 0;
} else {
percentage_size = (double) ( inlined_size * 100 ) / total_size;
}
std::cout << "inlined funcs : " << funcs_inlined.size () << std::endl std::cout << "inlined funcs : " << funcs_inlined.size () << std::endl
<< " total funcs : " << total << std::endl << " total funcs : " << total << std::endl
<< " % inline funcs : " << (funcs_inlined.size () * 100) / total << '%' << " % inline funcs : " << percentage << '%' << std::endl
<< std::endl
<< " total size : " << total_size << std::endl << " total size : " << total_size << std::endl
<< " inline size : " << inlined_size << std::endl << " inline size : " << inlined_size << std::endl
<< " % inline size : " << (inlined_size * 100) / total_size << '%' << " % inline size : " << percentage_size << '%' << std::endl;
<< std::endl;
auto count_compare = [](func_count const & a, func_count const & b) { auto count_compare = [](func_count const & a, func_count const & b) {
return a.size != b.size? a.size < b.size : a.count > b.count; return a.size != b.size? a.size < b.size : a.count > b.count;