LBPM/StackTrace/StackTrace.h
2023-10-22 09:53:45 -04:00

307 lines
9.4 KiB
C++

#ifndef included_StackTrace
#define included_StackTrace
#include <array>
#include <functional>
#include <iostream>
#include <set>
#include <thread>
#include <vector>
#include "StackTrace/string_view.h"
namespace StackTrace {
//! Class to contain stack trace info for a single thread/process
struct stack_info {
uint32_t line;
void *address;
void *address2;
std::array<char, 56> object;
std::array<char, 48> objectPath;
std::array<char, 64> filename;
std::array<char, 64> filenamePath;
std::array<char, 256> function;
//! Default constructor
stack_info();
//! Reset the stack
void clear();
//! Operator==
bool operator==( const stack_info &rhs ) const;
//! Operator!=
bool operator!=( const stack_info &rhs ) const;
//! Get the minimum width to print the addresses
int getAddressWidth() const;
//! Print the stack info
std::string print( int widthAddress = 16, int widthObject = 20, int widthFunction = 32 ) const;
//! Print the stack info
static void print( std::ostream &out, const std::vector<stack_info> &stack,
const StackTrace::string_view &prefix = "" );
//! Print the stack info
void print2(
char *txt, int widthAddress = 16, int widthObject = 20, int widthFunction = 32 ) const;
//! Compute the number of bytes needed to store the object
size_t size() const;
//! Pack the data to a byte array, returning a pointer to the end of the data
char *pack( char *ptr ) const;
//! Unpack the data from a byte array, returning a pointer to the end of the data
const char *unpack( const char *ptr );
};
//! Class to contain stack trace info for multiple threads/processes
struct multi_stack_info {
int N; // Number of threads/processes
stack_info stack; // Current stack item
std::vector<multi_stack_info> children; // Children
//! Default constructor
multi_stack_info() : N( 0 ) {}
//! Construct from a simple call stack
explicit multi_stack_info( const std::vector<stack_info> & );
//! Copy constructor from a simple call stack
multi_stack_info &operator=( const std::vector<stack_info> & );
//! Reset the stack
void clear();
//! Is the stack empty
bool empty() const { return N == 0; }
//! Add the given stack to the multistack
void add( size_t len, const stack_info *stack );
//! Add the given stack to the multistack
void add( const multi_stack_info &stack );
//! Compute the number of bytes needed to store the object
size_t size() const;
//! Pack the data to a byte array, returning a pointer to the end of the data
char *pack( char *ptr ) const;
//! Unpack the data from a byte array, returning a pointer to the end of the data
const char *unpack( const char *ptr );
//! Print the stack info
std::vector<std::string> print( const StackTrace::string_view &prefix = "" ) const;
//! Print the stack info
void print( std::ostream &out, const StackTrace::string_view &prefix = "" ) const;
//! Print the stack info
std::string printString( const StackTrace::string_view &prefix = "" ) const;
private:
template<class FUN>
void print2( int Np, char *prefix, int w[3], bool c, FUN &fun ) const;
int getAddressWidth() const;
int getObjectWidth() const;
int getFunctionWidth() const;
};
//!< Terminate type
enum class terminateType : uint8_t { signal, exception, abort, MPI, unknown };
enum class printStackType : uint8_t { local = 1, threaded = 2, global = 3 };
//!< Class to contain exception info from abort
class abort_error : public std::exception
{
public:
std::string message; //!< Abort message
std::string filename; //!< File where abort was called
terminateType type; //!< What caused the termination
printStackType stackType; //!< Print the local stack, all threads, or global call stack
uint8_t signal; //!< Signal number
int line; //!< Line number where abort was called
size_t bytes; //!< Memory in use during abort
std::vector<void *> stack; //!< Local call stack for abort
public:
virtual const char *what() const noexcept override;
abort_error();
virtual ~abort_error() {}
private:
mutable std::string d_msg;
};
//!< Class to contain symbol information
struct symbols_struct {
char type;
void *address;
std::array<char, 56> obj;
std::array<char, 56> objPath;
};
/*!
* @brief Get the current call stack
* @details This function returns the current call stack for the current thread
* @return Returns vector containing the stack
*/
std::vector<stack_info> getCallStack();
/*!
* @brief Get the current call stack for a thread
* @details This function returns the current call stack for the given thread
* @param[in] id The thread id of the stack we want to return
* @return Returns vector containing the stack
*/
std::vector<stack_info> getCallStack( std::thread::native_handle_type id );
/*!
* @brief Get the current call stack for all threads
* @details This function returns the current call stack for all threads
* in the current process.
* Note: This functionality may not be availible on all platforms
* @return Returns vector containing the stack
*/
multi_stack_info getAllCallStacks();
/*!
* @brief Get the current call stack for all threads/processes
* @details This function returns the current call stack for all threads
* for all processes in the current process. This function requires
* the user to call globalCallStackInitialize() before calling this
* routine, and globalCallStackFinalize() before exiting.
* Note: This functionality may not be availible on all platforms
* @return Returns vector containing the stack
*/
multi_stack_info getGlobalCallStacks();
/*!
* @brief Clean up the stack trace
* @details This function modifies the stack trace to remove entries
* related to acquiring the stack trace in an attempt to make it
* more useful for display/users.
* @param[in,out] stack The stack trace to modify
*/
void cleanupStackTrace( multi_stack_info &stack );
//! Function to return the current call stack for the current thread
std::vector<void *> backtrace();
//! Function to return the current call stack for the given thread
std::vector<void *> backtrace( std::thread::native_handle_type id );
//! Function to return the current call stack for all threads
std::vector<std::vector<void *>> backtraceAll();
//! Function to return the stack info for a given address
stack_info getStackInfo( void *address );
//! Function to return the stack info for a given address
std::vector<stack_info> getStackInfo( const std::vector<void *> &address );
//! Function to return the signal name
const char *signalName( int signal );
/*!
* Return the symbols from the current executable (not availible for all platforms)
* @return Returns the symbols loaded
*/
std::vector<symbols_struct> getSymbols();
//! Clear internal symbol data
void clearSymbols();
/*!
* Return the name of the executable
* @return Returns the name of the executable (usually the full path)
*/
std::string getExecutable();
/*!
* Return the search path for the symbols
* @return Returns the search path for the symbols
*/
std::string getSymPaths();
/*!
* Set the given signals to the handler
* @param[in] signals Signals to handle
* @param[in] handler Function to terminate the program: abort(signal)
*/
void setSignals( const std::vector<int> &signals, void ( *handler )( int ) );
//! Clear a signal set by setSignals
void clearSignal( int signal );
//! Clear a signal set by setSignals
void clearSignals( const std::vector<int> &signals );
//! Clear all signals set by setSignals
void clearSignals();
//! Raise a signal
void raiseSignal( int signal );
//! Default function to abort after catching a signal
void terminateFunctionSignal( int signal );
//! Return a list of all signals that can be caught
std::vector<int> allSignalsToCatch();
//! Return a default list of signals to catch
std::vector<int> defaultSignalsToCatch();
//! Get a list of the active threads
std::vector<std::thread::native_handle_type> activeThreads();
//! Get a handle to this thread
std::thread::native_handle_type thisThread();
/*!
* @brief Call system command
* @details This function calls a system command, waits for the program
* to execute, captures and returns the output and exit code.
* @param[in] cmd Command to execute
* @param[out] exit_code Exit code returned from child process
* @return Returns string containing the output
*/
std::string exec( const string_view &cmd, int &exit_code );
/*!
* @brief Create stack from string
* @details This function creates the call stack from the string generated by print
* @param[in] str Vector of strings containing call stack
* @return Returns the call stack
*/
multi_stack_info generateFromString( const std::vector<std::string> &str );
/*!
* @brief Create stack from string
* @details This function creates the call stack from the string
* @param[in] str String containing call stack
* @return Returns the call stack
*/
multi_stack_info generateFromString( const std::string &str );
//! Set default stack type
void setDefaultStackType( StackTrace::printStackType );
//! Get default stack type
StackTrace::printStackType getDefaultStackType();
} // namespace StackTrace
#endif