From: Jim Blandy Date: Wed, 6 Nov 2002 20:57:41 +0000 (+0000) Subject: * macrotab.h (struct macro_source_file): Doc fix. X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=ad23afcb2b8465db98ae495763421ec136b34605;p=pf3gnuchains%2Fpf3gnuchains3x.git * macrotab.h (struct macro_source_file): Doc fix. --- diff --git a/gdb/ChangeLog b/gdb/ChangeLog index dc7f7eb03a..707dadfb1b 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,7 @@ +2002-11-06 Jim Blandy + + * macrotab.h (struct macro_source_file): Doc fix. + 2002-11-05 Jeff Johnston * varobj.c (child_exists, cplus_number_of_children): Change diff --git a/gdb/macrotab.h b/gdb/macrotab.h index df32977967..bd44e2c3ed 100644 --- a/gdb/macrotab.h +++ b/gdb/macrotab.h @@ -83,6 +83,15 @@ struct macro_table; tree mapping the #inclusions that contributed to the compilation unit, with the main source file as its root. + Beware --- not every source file mentioned in a compilation unit's + symtab structures will appear in the #inclusion tree! As of Oct + 2002, GCC does record the effect of #line directives in the source + line info, but not in macro info. This means that GDB's symtabs + (built from the former, among other things) may mention filenames + that the #inclusion tree (built from the latter) doesn't have any + record of. See macroscope.c:sal_macro_scope for how to accomodate + this. + It's worth noting that libcpp has a simpler way of representing all this, which we should consider switching to. It might even be suitable for ordinary non-macro line number info.