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expand on solib_add_common_symbols comment

This commit is contained in:
Jim Kingdon 1993-06-21 18:48:51 +00:00
parent 7edd8068e1
commit 550754345f
1 changed files with 19 additions and 1 deletions
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20
gdb/solib.c
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@ -271,7 +271,25 @@ solib_map_sections (so)
* Just record the name of the minimal symbol and lazily patch the
addresses.
* Tell everyone to switch to Solaris2. */
* Tell everyone to switch to Solaris2.
(1) Move the call to special_symbol_handling out of the find_solib
loop in solib_add. This will call it once, rather than 35 times, when
you have 35 shared libraries. It's in the loop to pass the current
solib's objfile so the symbols are added to that objfile's minsym.
But since the symbols are in common (BSS), it doesn't really matter
which objfile's minsyms they are added to, I think.
(2) Indeed, it might be best to create an objfile just for common minsyms,
thus not needing any objfile argument to solib_add_common_symbols.
(3) Remove the call to lookup_minimal_symbol from
solib_add_common_symbols. If a symbol appears multiple times in the
minsyms, we probably cope, more or less. Note that if we had an
objfile for just minsyms, install_minimal_symbols would automatically
remove duplicates caused by running solib_add_common_symbols several
times.
*/
static void
solib_add_common_symbols (rtc_symp, objfile)