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- These files are some GNU utilities for operating on binary files.
- Note that GNU make, which used to be included here, is now distributed
- in a separate tar file.
- Report bugs in these programs to bug-gnu-utils@prep.ai.mit.edu and use
- the date of the main source file as a "version number" for the
- program.
- Define USG with `-DUSG' when compiling these programs to run on system V.
- COFF is not supported, but we do support a way of encapsulating GNU
- executable files with COFF headers. Use -DCOFF_ENCAPSULATE when you
- compile, to enable this feature.
- In order to use encapsulation, you must use entirely GNU tools,
- including these plus GAS, GCC and GDB. You will need to convert the
- system libraries to BSD object file format. Use the shell script
- libconvert (which uses robotussin) for that.
- The GNU version of ld has some interesting features:
- 1. Undefined and multiply-defined global symbol errors
- are now associated with specific source files and line numbers,
- and printed in a format M-x next-error can parse.
- 2. Normally no output is written if there are serious errors.
- Use the option `-noinhibit-exec' if you want an output file anyway.
- 3. Global symbols can be defined by indirection to other symbols.
- See comments at definition of N_INDR in ld.c
- 4. LD can accumulate sets of related values from all the object files
- that are being linked together, and put them into a vector that can
- be accessed at run time. Thus, you can arrange for each file to have
- initializations to be run when your `main' function sees fit, without
- having to know the names of all the files that are linked together.
- See comments at definition of N_SETA, etc., in ld.c.
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