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* symtab.c (append_exact_match_to_sals): New function, extracted

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from expand_line_sal.
	(expand_line_sal): Use append_exact_match_to_sals to append exact
	matches. If none found, append all best items.
This commit is contained in:
Jerome Guitton 2009-04-27 11:57:46 +00:00
parent df1756f414
commit aad80b2683
2 changed files with 65 additions and 35 deletions
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7
gdb/ChangeLog
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@ -1,3 +1,10 @@
2009-04-27 Jerome Guitton <guitton@adacore.com>
* symtab.c (append_exact_match_to_sals): New function, extracted
from expand_line_sal.
(expand_line_sal): Use append_exact_match_to_sals to append exact
matches. If none found, append all best items.
2009-04-27 Jerome Guitton <guitton@adacore.com>
* main.c (captured_main): Move gdbinit lookups after gdb_init.

93
gdb/symtab.c
View File

@ -4460,6 +4460,57 @@ append_expanded_sal (struct symtabs_and_lines *sal,
++sal->nelts;
}
/* Helper to expand_line_sal below. Search in the symtabs for any
linetable entry that exactly matches FILENAME and LINENO and append
them to RET. If there is at least one match, return 1; otherwise,
return 0, and return the best choice in BEST_ITEM and BEST_SYMTAB. */
static int
append_exact_match_to_sals (char *filename, int lineno,
struct symtabs_and_lines *ret,
struct linetable_entry **best_item,
struct symtab **best_symtab)
{
struct objfile *objfile;
struct symtab *symtab;
int exact = 0;
int j;
*best_item = 0;
*best_symtab = 0;
ALL_SYMTABS (objfile, symtab)
{
if (strcmp (filename, symtab->filename) == 0)
{
struct linetable *l;
int len;
l = LINETABLE (symtab);
if (!l)
continue;
len = l->nitems;
for (j = 0; j < len; j++)
{
struct linetable_entry *item = &(l->item[j]);
if (item->line == lineno)
{
exact = 1;
append_expanded_sal (ret, symtab, lineno, item->pc);
}
else if (!exact && item->line > lineno
&& (*best_item == NULL
|| item->line < (*best_item)->line))
{
*best_item = item;
*best_symtab = symtab;
}
}
}
}
return exact;
}
/* Compute a set of all sals in
the entire program that correspond to same file
and line as SAL and return those. If there
@ -4515,42 +4566,14 @@ expand_line_sal (struct symtab_and_line sal)
PSYMTAB_TO_SYMTAB (psymtab);
}
/* For each symtab, we add all pcs to ret.sals. I'm actually
not sure what to do if we have exact match in one symtab,
and non-exact match on another symtab. */
ALL_SYMTABS (objfile, symtab)
{
if (strcmp (sal.symtab->filename,
symtab->filename) == 0)
{
struct linetable *l;
int len;
l = LINETABLE (symtab);
if (!l)
continue;
len = l->nitems;
for (j = 0; j < len; j++)
{
struct linetable_entry *item = &(l->item[j]);
if (item->line == lineno)
{
exact = 1;
append_expanded_sal (&ret, symtab, lineno, item->pc);
}
else if (!exact && item->line > lineno
&& (best_item == NULL || item->line < best_item->line))
{
best_item = item;
best_symtab = symtab;
}
}
}
}
/* Now search the symtab for exact matches and append them. If
none is found, append the best_item and all its exact
matches. */
exact = append_exact_match_to_sals (sal.symtab->filename, lineno,
&ret, &best_item, &best_symtab);
if (!exact && best_item)
append_expanded_sal (&ret, best_symtab, lineno, best_item->pc);
append_exact_match_to_sals (best_symtab->filename, best_item->line,
&ret, &best_item, &best_symtab);
}
/* For optimized code, compiler can scatter one source line accross