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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <stdio.h>
#include <dlfcn.h>
#include <limits>
#include </usr/include/execinfo.h>
#include <vespamalloc/util/stream.h>
namespace vespamalloc {
const char * dlAddr(const void * addr);
class StackReturnEntry {
public:
StackReturnEntry(const void * returnAddress = nullptr,
const void * stack=nullptr)
: _return(returnAddress)
{
(void) stack;
}
int cmp(const StackReturnEntry & b) const {
return (size_t(_return) - size_t(b._return));
}
void info(FILE * os) const;
bool valid() const { return _return != nullptr; }
bool valid(const void * stopAddr) const { return valid() && (_return != stopAddr); }
bool valid(const void * stopAddrMin, const void * stopAddrMax) const { return valid() && ! ((stopAddrMin <= _return) && (_return < stopAddrMax)); }
private:
friend asciistream & operator << (asciistream & os, const StackReturnEntry & v);
const void * _return;
};
class StackEntry {
public:
StackEntry(const void * returnAddress = nullptr,
const void * stack = nullptr)
: _stackRep(returnAddress, stack)
{ }
bool operator == (const StackEntry & b) const { return cmp(b) == 0; }
bool operator < (const StackEntry & b) const { return cmp(b) < 0; }
bool operator > (const StackEntry & b) const { return cmp(b) > 0; }
void info(FILE * os) const { _stackRep.info(os); }
bool valid() const { return _stackRep.valid(_stopAddr); }
static size_t fillStack(StackEntry *stack, size_t nelems);
static void setStopAddress(const void * stopAddr) { _stopAddr = stopAddr; }
private:
int cmp(const StackEntry & b) const { return _stackRep.cmp(b._stackRep); }
friend asciistream & operator << (asciistream & os, const StackEntry & v) {
return os << v._stackRep;
}
StackReturnEntry _stackRep;
static const void * _stopAddr;
};
}
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