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Move pending_blocks and pending_block_obstack to buildsym_compunit

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This moves the pending_blocks and pending_block_obstack into
buildsym_compunit.

The obstack could perhaps be merged with the addrmap obstack, but I
did not do that in this series.

gdb/ChangeLog
2018-07-20  Tom Tromey  <tom@tromey.com>

	* buildsym.h (class scoped_free_pendings): Remove constructor.
	* buildsym.c (struct buildsym_compunit) <free_pending_blocks>: New
	method.
	<m_pending_block_obstack, m_pending_blocks>: New members.
	(pending_block_obstack, pending_blocks): Remove.
	(scoped_free_pendings::scoped_free_pendings): Default.
	(~scoped_free_pendings): Update.
	(free_pending_blocks): Remove.
	(finish_block_internal, record_pending_block, make_blockvector)
	(end_symtab_get_static_block, augment_type_symtab, push_context)
	(buildsym_init): Update.
This commit is contained in:
Tom Tromey 2018-05-21 00:34:26 -06:00
parent 7ea05a7b63
commit 5ac045503d
3 changed files with 49 additions and 51 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
gdb/ChangeLog
View File

@ -1,3 +1,17 @@
2018-07-20 Tom Tromey <tom@tromey.com>
* buildsym.h (class scoped_free_pendings): Remove constructor.
* buildsym.c (struct buildsym_compunit) <free_pending_blocks>: New
method.
<m_pending_block_obstack, m_pending_blocks>: New members.
(pending_block_obstack, pending_blocks): Remove.
(scoped_free_pendings::scoped_free_pendings): Default.
(~scoped_free_pendings): Update.
(free_pending_blocks): Remove.
(finish_block_internal, record_pending_block, make_blockvector)
(end_symtab_get_static_block, augment_type_symtab, push_context)
(buildsym_init): Update.
2018-07-20 Tom Tromey <tom@tromey.com>
* buildsym.c (struct buildsym_compunit) <m_pending_addrmap,

84
gdb/buildsym.c
View File

@ -155,6 +155,14 @@ struct buildsym_compunit
return result;
}
/* This function is called to discard any pending blocks. */
void free_pending_blocks ()
{
m_pending_block_obstack.clear ();
m_pending_blocks = nullptr;
}
/* The objfile we're reading debug info from. */
struct objfile *objfile;
@ -232,6 +240,15 @@ struct buildsym_compunit
we start processing a symfile, and if it's still false at the
end, then we just toss the addrmap. */
bool m_pending_addrmap_interesting = false;
/* An obstack used for allocating pending blocks. */
auto_obstack m_pending_block_obstack;
/* Pointer to the head of a linked list of symbol blocks which have
already been finalized (lexical contexts already closed) and which
are just waiting to be built into a blockvector when finalizing the
associated symtab. */
struct pending_block *m_pending_blocks = nullptr;
};
/* The work-in-progress of the compunit we are building.
@ -243,10 +260,6 @@ static struct buildsym_compunit *buildsym_compunit;
static struct pending *free_pendings;
/* An obstack used for allocating pending blocks. */
static struct obstack pending_block_obstack;
/* List of blocks already made (lexical contexts already closed).
This is used at the end to make the blockvector. */
@ -256,13 +269,6 @@ struct pending_block
struct block *block;
};
/* Pointer to the head of a linked list of symbol blocks which have
already been finalized (lexical contexts already closed) and which
are just waiting to be built into a blockvector when finalizing the
associated symtab. */
static struct pending_block *pending_blocks;
static void free_buildsym_compunit (void);
static int compare_line_numbers (const void *ln1p, const void *ln2p);
@ -271,8 +277,6 @@ static void record_pending_block (struct objfile *objfile,
struct block *block,
struct pending_block *opblock);
static void free_pending_blocks ();
/* Initial sizes of data structures. These are realloc'd larger if
needed, and realloc'd down to the size actually used, when
completed. */
@ -340,11 +344,6 @@ find_symbol_in_list (struct pending *list, char *name, int length)
return (NULL);
}
scoped_free_pendings::scoped_free_pendings ()
{
gdb_assert (pending_blocks == nullptr);
}
/* At end of reading syms, or in case of quit, ensure everything
associated with building symtabs is freed.
@ -362,8 +361,6 @@ scoped_free_pendings::~scoped_free_pendings ()
}
free_pendings = NULL;
free_pending_blocks ();
for (next = file_symbols; next != NULL; next = next1)
{
next1 = next->next;
@ -381,18 +378,6 @@ scoped_free_pendings::~scoped_free_pendings ()
free_buildsym_compunit ();
}
/* This function is called to discard any pending blocks. */
static void
free_pending_blocks ()
{
if (pending_blocks != NULL)
{
obstack_free (&pending_block_obstack, NULL);
pending_blocks = NULL;
}
}
/* Take one of the lists of symbols and make a block from it. Keep
the order the symbols have in the list (reversed from the input
file). Put the block on the list of pending blocks. */
@ -533,7 +518,7 @@ finish_block_internal (struct symbol *symbol,
start of this scope that don't have superblocks yet. */
opblock = NULL;
for (pblock = pending_blocks;
for (pblock = buildsym_compunit->m_pending_blocks;
pblock && pblock != old_blocks;
pblock = pblock->next)
{
@ -613,10 +598,8 @@ record_pending_block (struct objfile *objfile, struct block *block,
{
struct pending_block *pblock;
if (pending_blocks == NULL)
obstack_init (&pending_block_obstack);
pblock = XOBNEW (&pending_block_obstack, struct pending_block);
pblock = XOBNEW (&buildsym_compunit->m_pending_block_obstack,
struct pending_block);
pblock->block = block;
if (opblock)
{
@ -625,8 +608,8 @@ record_pending_block (struct objfile *objfile, struct block *block,
}
else
{
pblock->next = pending_blocks;
pending_blocks = pblock;
pblock->next = buildsym_compunit->m_pending_blocks;
buildsym_compunit->m_pending_blocks = pblock;
}
}
@ -670,8 +653,10 @@ make_blockvector (void)
/* Count the length of the list of blocks. */
for (next = pending_blocks, i = 0; next; next = next->next, i++)
{;
for (next = buildsym_compunit->m_pending_blocks, i = 0;
next;
next = next->next, i++)
{
}
blockvector = (struct blockvector *)
@ -686,12 +671,12 @@ make_blockvector (void)
sure this is true. */
BLOCKVECTOR_NBLOCKS (blockvector) = i;
for (next = pending_blocks; next; next = next->next)
for (next = buildsym_compunit->m_pending_blocks; next; next = next->next)
{
BLOCKVECTOR_BLOCK (blockvector, --i) = next->block;
}
free_pending_blocks ();
buildsym_compunit->free_pending_blocks ();
/* If we needed an address map for this symtab, record it in the
blockvector. */
@ -1229,13 +1214,13 @@ end_symtab_get_static_block (CORE_ADDR end_addr, int expandable, int required)
/* Reordered executables may have out of order pending blocks; if
OBJF_REORDERED is true, then sort the pending blocks. */
if ((objfile->flags & OBJF_REORDERED) && pending_blocks)
if ((objfile->flags & OBJF_REORDERED) && buildsym_compunit->m_pending_blocks)
{
struct pending_block *pb;
std::vector<block *> barray;
for (pb = pending_blocks; pb != NULL; pb = pb->next)
for (pb = buildsym_compunit->m_pending_blocks; pb != NULL; pb = pb->next)
barray.push_back (pb->block);
/* Sort blocks by start address in descending order. Blocks with the
@ -1248,7 +1233,7 @@ end_symtab_get_static_block (CORE_ADDR end_addr, int expandable, int required)
});
int i = 0;
for (pb = pending_blocks; pb != NULL; pb = pb->next)
for (pb = buildsym_compunit->m_pending_blocks; pb != NULL; pb = pb->next)
pb->block = barray[i++];
}
@ -1266,7 +1251,7 @@ end_symtab_get_static_block (CORE_ADDR end_addr, int expandable, int required)
finish_global_stabs (objfile);
if (!required
&& pending_blocks == NULL
&& buildsym_compunit->m_pending_blocks == NULL
&& file_symbols == NULL
&& global_symbols == NULL
&& !buildsym_compunit->m_have_line_numbers
@ -1568,7 +1553,7 @@ augment_type_symtab (void)
if (!buildsym_compunit->m_context_stack.empty ())
complaint (_("Context stack not empty in augment_type_symtab"));
if (pending_blocks != NULL)
if (buildsym_compunit->m_pending_blocks != NULL)
complaint (_("Blocks in a type symtab"));
if (buildsym_compunit->m_pending_macros != NULL)
complaint (_("Macro in a type symtab"));
@ -1614,7 +1599,7 @@ push_context (int desc, CORE_ADDR valu)
newobj->depth = desc;
newobj->locals = local_symbols;
newobj->old_blocks = pending_blocks;
newobj->old_blocks = buildsym_compunit->m_pending_blocks;
newobj->start_addr = valu;
newobj->local_using_directives
= buildsym_compunit->m_local_using_directives;
@ -1770,7 +1755,6 @@ buildsym_init ()
/* Ensure the scoped_free_pendings destructor was called after
the last time. */
gdb_assert (free_pendings == NULL);
gdb_assert (pending_blocks == NULL);
gdb_assert (file_symbols == NULL);
gdb_assert (global_symbols == NULL);
gdb_assert (buildsym_compunit == NULL);

2
gdb/buildsym.h
View File

@ -157,7 +157,7 @@ class scoped_free_pendings
{
public:
scoped_free_pendings ();
scoped_free_pendings () = default;
~scoped_free_pendings ();
DISABLE_COPY_AND_ASSIGN (scoped_free_pendings);