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* buildsym.c (end_symtab): Remove sort_pending and sort_linevec

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arguments.  Sorting is now dependent on OBJF_REORDERED.  All
        callers/references changed.
        * dbxread.c (read_ofile_symtab): Correctly determine value for
        last_source_start_addr for reordered executables.
        (process_one_symbol): Handle N_FUN with no name as an end of
        function marker.
        * partial-stab.h (case N_FN, N_TEXT): Don't assume CUR_SYMBOL_VALUE
        is the high text address for a psymtab.
        (case N_SO): Likewise.
        (case N_FUN): Handle N_FUN with no name as an end of function
        marker.
        * minsyms.c (lookup_minimal_symbol_by_pc): Examine all symbols
        at the same address rather than a random subset of them.
        * coffread.c (coff_symfile_init): Set OBJF_REORDERED.
        * elfread.c (elf_symfile_init): Similarly.
        * somread.c (som_symfile_init): Similarly.
        * xcoffread.c (xcoff_symfile_init): Similarly.

Support for debugging reordered executables.  Remaining mentor vm
changes.
This commit is contained in:
Jeff Law
1996-01-08 17:55:25 +00:00
parent 01082eaf19
commit 436d414327
12 changed files with 120 additions and 46 deletions
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12
gdb/minsyms.c
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@@ -1,5 +1,5 @@
/* GDB routines for manipulating the minimal symbol tables.
Copyright 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
Copyright 1992, 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
Contributed by Cygnus Support, using pieces from other GDB modules.
This file is part of GDB.
@@ -253,7 +253,6 @@ lookup_minimal_symbol_text (name, sfile, objf)
return NULL;
}
/* Search through the minimal symbol table for each objfile and find the
symbol whose address is the largest address that is still less than or
equal to PC. Returns a pointer to the minimal symbol if such a symbol
@@ -325,6 +324,15 @@ lookup_minimal_symbol_by_pc (pc)
lo = new;
}
}
/* If we have multiple symbols at the same address, we want
hi to point to the last one. That way we can find the
right symbol if it has an index greater than hi. */
while (hi < objfile -> minimal_symbol_count - 1
&& (SYMBOL_VALUE_ADDRESS (&msymbol[hi])
== SYMBOL_VALUE_ADDRESS (&msymbol[hi+1])))
hi++;
/* The minimal symbol indexed by hi now is the best one in this
objfile's minimal symbol table. See if it is the best one
overall. */