The following patch fixes a problem when the stabs debug info
for a file does not contain sline entries.  This happens, for
example with the glibc syscall code which is generated assembler
code.  In process_one_symbol in dbxread.c, a line 0 is recorded for the
end of the function.  When there are no other line numbers, we end up finding this
line 0 as our alt_symtab in symtab:find_pc_sect_line() and we end up
subtracting one resulting in line -1.  This problem manifests itself
when we attempt to break at the generated glibc functions such as
kill.

The patch changes process_one_symbol() to only record line 0 if sline info
has been found for the function.

Ok to commit?

-- Jeff J.


2003-02-24  Jeff Johnston  <jjohnstn@redhat.com>

	* dbxread.c (process_one_symbol): Only record line 0 if one or more sline
	entries have been seen for the function.