QuasarApp/backward-cpp
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fix off-by-one when resolve goes up to ip==0 frame

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Rafal Crypto Tigusoft 2017-06-28 11:06:17 +00:00
parent f9f732ddeb
commit dd552a10c8
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1 changed files with 10 additions and 1 deletions
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11
backward.hpp
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@ -752,7 +752,16 @@ public:
while (*funcname && *funcname != '(') {
funcname += 1;
}
trace.object_filename.assign(filename, funcname++);
trace.object_filename.assign(filename, funcname); // it is ok if funcname is the ending \0, then we select string till end
if ( ! (*funcname) ) { // we already hit end of string. This happens for the last address 0xffff for ip==0
trace.object_function = "(none)";
trace.source.function = "(none)";
return trace;
}
// else normal string, we are at the opening '(' now
funcname++;
char* funcname_end = funcname;
while (*funcname_end && *funcname_end != ')' && *funcname_end != '+') {
funcname_end += 1;