# traceback

Tells the compiler to generate extra information in the object file to provide source file traceback information when a severe error occurs at run time.

## Syntax

Linux: | -traceback -notraceback

macOS: | -traceback -notraceback

Windows: | /traceback /notraceback

## Arguments

None

## Default

notraceback | No extra information is generated in the object file to produce traceback information.

## Description

This option tells the compiler to generate extra information in the object file to provide source file traceback information when a severe error occurs at run time. This is intended for use with C code that is to be linked into a Fortran program.

When the severe error occurs, source file, routine name, and line number correlation information is displayed along with call stack hexadecimal addresses (program counter trace).

Note that when a severe error occurs, advanced users can also locate the cause of the error using a map file and the hexadecimal addresses of the stack displayed when the error occurs.

This option increases the size of the executable program, but has no impact on run-time execution speeds.

It functions independently of the debug option.

On Windows* systems, traceback sets the /Oy- option, which forces the compiler to use EBP as the stack frame pointer.

On Windows* systems, the linker places the traceback information in the executable image, in a section named ".trace". To see which sections are in an image, use the command:

    link -dump -summary your_app_name.exe

To see more detailed information, use the command:

    link -dump -headers your_app_name.exe

On Linux* systems, to display the section headers in the image (including the header for the .trace section, if any), use the command:

    objdump -h your_app_name.exe

On macOS systems, to display the section headers in the image, use the command:

    otool -l your_app_name.exe

## IDE Equivalent

Visual Studio: None

Eclipse: Runtime > Generate Traceback Information

Xcode: Runtime > Generate Traceback Information

## Alternate Options

None

Parent topic: Compiler Diagnostic Options