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* dwarf2read.c (dwarf2_get_subprogram_pc_bounds): New function.

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(get_scope_pc_bounds): Use it.
This commit is contained in:
Joel Brobecker 2008-09-30 16:57:37 +00:00
parent 506800a969
commit b084d49989
2 changed files with 43 additions and 5 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2008-09-30 Joel Brobecker <brobecker@adacore.com>
* dwarf2read.c (dwarf2_get_subprogram_pc_bounds): New function.
(get_scope_pc_bounds): Use it.
2008-09-27 Tom Tromey <tromey@redhat.com>
* NEWS: Update.

43
gdb/dwarf2read.c
View file

@ -3324,6 +3324,43 @@ dwarf2_get_pc_bounds (struct die_info *die, CORE_ADDR *lowpc,
return ret;
}
/* Assuming that DIE represents a subprogram DIE or a lexical block, get
its low and high PC addresses. Do nothing if these addresses could not
be determined. Otherwise, set LOWPC to the low address if it is smaller,
and HIGHPC to the high address if greater than HIGHPC. */
static void
dwarf2_get_subprogram_pc_bounds (struct die_info *die,
CORE_ADDR *lowpc, CORE_ADDR *highpc,
struct dwarf2_cu *cu)
{
CORE_ADDR low, high;
struct die_info *child = die->child;
if (dwarf2_get_pc_bounds (die, &low, &high, cu))
{
*lowpc = min (*lowpc, low);
*highpc = max (*highpc, high);
}
/* If the language does not allow nested subprograms (either inside
subprograms or lexical blocks), we're done. */
if (cu->language != language_ada)
return;
/* Check all the children of the given DIE. If it contains nested
subprograms, then check their pc bounds. Likewise, we need to
check lexical blocks as well, as they may also contain subprogram
definitions. */
while (child && child->tag)
{
if (child->tag == DW_TAG_subprogram
|| child->tag == DW_TAG_lexical_block)
dwarf2_get_subprogram_pc_bounds (child, lowpc, highpc, cu);
child = sibling_die (child);
}
}
/* Get the low and high pc's represented by the scope DIE, and store
them in *LOWPC and *HIGHPC. If the correct values can't be
determined, set *LOWPC to -1 and *HIGHPC to 0. */
@ -3350,11 +3387,7 @@ get_scope_pc_bounds (struct die_info *die,
{
switch (child->tag) {
case DW_TAG_subprogram:
if (dwarf2_get_pc_bounds (child, &current_low, &current_high, cu))
{
best_low = min (best_low, current_low);
best_high = max (best_high, current_high);
}
dwarf2_get_subprogram_pc_bounds (child, &best_low, &best_high, cu);
break;
case DW_TAG_namespace:
/* FIXME: carlton/2004-01-16: Should we do this for