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global refactoring: use libunwind to get stack frame, get rid on process

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base address, better DWARF DW_OP_XXX handling, initial implementation of
parameter's values retrieval
This commit is contained in:
nnosov
2020-01-09 18:49:45 +04:00
parent 83fc2bc3ef
commit 8f7fed23dc
6 changed files with 652 additions and 301 deletions
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main.cpp
+5 -4
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@@ -63,14 +63,15 @@ void FatalSignalHandler(int sig, siginfo_t* info, void* context)
fatal_error_in_progress = 1;
logger->Log(SEVERITY_ERROR, "%s signal handled", strsignal(sig));
const char* trace = 0;
bool trace = false;
pst_context ctx((ucontext_t*)context);
if((context != 0) && (sig == SIGSEGV || sig == SIGABRT || sig == SIGBUS || sig == SIGFPE))
{
trace = LibdwTraceCallStack((ucontext_t*)context);
trace = ctx.unwind();
}
if(trace) {
logger->Log(SEVERITY_DEBUG, "%s", trace);
logger->Log(SEVERITY_DEBUG, "%s", ctx.buff);
} else {
logger->Log(SEVERITY_ERROR, "No stack trace obtained");
}
@@ -193,7 +194,7 @@ int main(int argc, char* argv[])
SetSignalHandler(SigusrHandler);
Fun1(1, DEF_2, 3);
Fun1(1, DEF_2, 5);
return 0;
}