_comment

Previous Symbols Built into the TIGCC Linker Next

Usually, this symbol is not handled in a special way. However, if it does not exist at all, it is redirected to the entry point of the program. The effect is that constructs of the form

.word _comment-entry_point
resolve to 0 if the symbol is undefined.

The kernel headers reference this symbol as the comment string of the program. If it exists, it must be a zero-terminated ASCII string.