/* Mudflap: narrow-pointer bounds-checking by tree rewriting.
- Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
Contributed by Frank Ch. Eigler <fche@redhat.com>
and Graydon Hoare <graydon@redhat.com>
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
#include "config.h"
-#include "errors.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "langhooks.h"
#include "ggc.h"
#include "cgraph.h"
+#include "toplev.h"
/* Internal function decls */
+
+/* Options. */
+#define flag_mudflap_threads (flag_mudflap == 2)
+
/* Helpers. */
static tree mf_build_string (const char *string);
static tree mf_varname_tree (tree);
static void mf_decl_cache_locals (void);
static void mf_decl_clear_locals (void);
static void mf_xform_derefs (void);
-static void execute_mudflap_function_ops (void);
+static unsigned int execute_mudflap_function_ops (void);
/* Addressable variables instrumentation. */
static void mf_xform_decls (tree, tree);
static tree mx_xfn_xform_decls (tree *, int *, void *);
static void mx_register_decls (tree, tree *);
-static void execute_mudflap_function_decls (void);
+static unsigned int execute_mudflap_function_decls (void);
/* ------------------------------------------------------------------------ */
{
const char *declname = NULL;
- if (strcmp ("GNU C++", lang_hooks.name) == 0 &&
- DECL_NAME (decl) != NULL)
+ if (DECL_NAME (decl) != NULL)
{
- /* The gcc/cp decl_printable_name hook doesn't do as good a job as
- the libiberty demangler. */
- declname = cplus_demangle (IDENTIFIER_POINTER (DECL_NAME (decl)),
- DMGL_AUTO | DMGL_VERBOSE);
+ if (strcmp ("GNU C++", lang_hooks.name) == 0)
+ {
+ /* The gcc/cp decl_printable_name hook doesn't do as good a job as
+ the libiberty demangler. */
+ declname = cplus_demangle (IDENTIFIER_POINTER (DECL_NAME (decl)),
+ DMGL_AUTO | DMGL_VERBOSE);
+ }
+ if (declname == NULL)
+ declname = lang_hooks.decl_printable_name (decl, 3);
}
-
- if (declname == NULL)
- declname = lang_hooks.decl_printable_name (decl, 3);
-
if (declname == NULL)
declname = "<unnamed variable>";
mf_cache_mask_decl = mf_make_builtin (VAR_DECL, "__mf_lc_mask",
mf_uintptr_type);
/* Don't process these in mudflap_enqueue_decl, should they come by
- there for some reason. */
+ there for some reason. */
mf_mark (mf_cache_array_decl);
mf_mark (mf_cache_shift_decl);
mf_mark (mf_cache_mask_decl);
tree optimizations have been performed, but we have to preserve the CFG
for expansion from trees to RTL. */
-static void
+static unsigned int
execute_mudflap_function_ops (void)
{
/* Don't instrument functions such as the synthetic constructor
built during mudflap_finish_file. */
if (mf_marked_p (current_function_decl) ||
DECL_ARTIFICIAL (current_function_decl))
- return;
+ return 0;
push_gimplify_context ();
mf_decl_clear_locals ();
pop_gimplify_context (NULL);
+ return 0;
}
/* Create and initialize local shadow variables for the lookup cache
/* Build initialization nodes for the cache vars. We just load the
globals into the cache variables. */
- t = build (MODIFY_EXPR, TREE_TYPE (mf_cache_shift_decl_l),
- mf_cache_shift_decl_l, mf_cache_shift_decl);
+ t = build2 (MODIFY_EXPR, TREE_TYPE (mf_cache_shift_decl_l),
+ mf_cache_shift_decl_l, mf_cache_shift_decl);
SET_EXPR_LOCATION (t, DECL_SOURCE_LOCATION (current_function_decl));
gimplify_to_stmt_list (&t);
shift_init_stmts = t;
- t = build (MODIFY_EXPR, TREE_TYPE (mf_cache_mask_decl_l),
- mf_cache_mask_decl_l, mf_cache_mask_decl);
+ t = build2 (MODIFY_EXPR, TREE_TYPE (mf_cache_mask_decl_l),
+ mf_cache_mask_decl_l, mf_cache_mask_decl);
SET_EXPR_LOCATION (t, DECL_SOURCE_LOCATION (current_function_decl));
gimplify_to_stmt_list (&t);
mask_init_stmts = t;
! tsi_end_p (tsi);
tsi_next (&tsi))
insert_edge_copies (tsi_stmt (tsi), ENTRY_BLOCK_PTR);
- bsi_commit_edge_inserts (NULL);
+ bsi_commit_edge_inserts ();
}
block_stmt_iterator bsi;
basic_block cond_bb, then_bb, join_bb;
edge e;
- tree cond, t, u, v, l1, l2;
+ tree cond, t, u, v;
tree mf_base;
tree mf_elem;
tree mf_limit;
/* We first need to split the current basic block, and start altering
the CFG. This allows us to insert the statements we're about to
- construct into the right basic blocks. The label l1 is the label
- of the block for the THEN clause of the conditional jump we're
- about to construct, and l2 is the ELSE clause, which is just the
- continuation of the old statement stream. */
- l1 = create_artificial_label ();
- l2 = create_artificial_label ();
+ construct into the right basic blocks. */
+
cond_bb = bb_for_stmt (bsi_stmt (*instr_bsi));
bsi = *instr_bsi;
bsi_prev (&bsi);
if (! bsi_end_p (bsi))
- {
- /* We're processing a statement in the middle of the block, so
- we need to split the block. This creates a new block and a new
- fallthrough edge. */
- e = split_block (cond_bb, bsi_stmt (bsi));
- cond_bb = e->src;
- join_bb = e->dest;
- }
+ e = split_block (cond_bb, bsi_stmt (bsi));
else
- {
- /* We're processing the first statement in the block, so we need
- to split the incoming edge. This also creates a new block
- and a new fallthrough edge. */
- join_bb = cond_bb;
- cond_bb = split_edge (find_edge (join_bb->prev_bb, join_bb));
- }
-
+ e = split_block_after_labels (cond_bb);
+ cond_bb = e->src;
+ join_bb = e->dest;
+
/* A recap at this point: join_bb is the basic block at whose head
is the gimple statement for which this check expression is being
built. cond_bb is the (possibly new, synthetic) basic block the
make_edge (cond_bb, then_bb, EDGE_TRUE_VALUE);
make_single_succ_edge (then_bb, join_bb, EDGE_FALLTHRU);
- /* We expect that the conditional jump we will construct will not
- be taken very often as it basically is an exception condition. */
- predict_edge_def (EDGE_PRED (then_bb, 0), PRED_MUDFLAP, NOT_TAKEN);
-
/* Mark the pseudo-fallthrough edge from cond_bb to join_bb. */
e = find_edge (cond_bb, join_bb);
e->flags = EDGE_FALSE_VALUE;
- predict_edge_def (e, PRED_MUDFLAP, TAKEN);
+ e->count = cond_bb->count;
+ e->probability = REG_BR_PROB_BASE;
/* Update dominance info. Note that bb_join's data was
updated by split_block. */
mf_limit = create_tmp_var (mf_uintptr_type, "__mf_limit");
/* Build: __mf_base = (uintptr_t) <base address expression>. */
- t = build (MODIFY_EXPR, void_type_node, mf_base,
- convert (mf_uintptr_type, unshare_expr (base)));
+ t = build2 (MODIFY_EXPR, void_type_node, mf_base,
+ convert (mf_uintptr_type, unshare_expr (base)));
SET_EXPR_LOCUS (t, locus);
gimplify_to_stmt_list (&t);
head = tsi_start (t);
tsi = tsi_last (t);
/* Build: __mf_limit = (uintptr_t) <limit address expression>. */
- t = build (MODIFY_EXPR, void_type_node, mf_limit,
- convert (mf_uintptr_type, unshare_expr (limit)));
+ t = build2 (MODIFY_EXPR, void_type_node, mf_limit,
+ convert (mf_uintptr_type, unshare_expr (limit)));
SET_EXPR_LOCUS (t, locus);
gimplify_to_stmt_list (&t);
tsi_link_after (&tsi, t, TSI_CONTINUE_LINKING);
/* Build: __mf_elem = &__mf_lookup_cache [(__mf_base >> __mf_shift)
& __mf_mask]. */
- t = build (RSHIFT_EXPR, mf_uintptr_type, mf_base,
- (flag_mudflap_threads ? mf_cache_shift_decl : mf_cache_shift_decl_l));
- t = build (BIT_AND_EXPR, mf_uintptr_type, t,
- (flag_mudflap_threads ? mf_cache_mask_decl : mf_cache_mask_decl_l));
- t = build (ARRAY_REF,
- TREE_TYPE (TREE_TYPE (mf_cache_array_decl)),
- mf_cache_array_decl, t, NULL_TREE, NULL_TREE);
+ t = build2 (RSHIFT_EXPR, mf_uintptr_type, mf_base,
+ (flag_mudflap_threads ? mf_cache_shift_decl : mf_cache_shift_decl_l));
+ t = build2 (BIT_AND_EXPR, mf_uintptr_type, t,
+ (flag_mudflap_threads ? mf_cache_mask_decl : mf_cache_mask_decl_l));
+ t = build4 (ARRAY_REF,
+ TREE_TYPE (TREE_TYPE (mf_cache_array_decl)),
+ mf_cache_array_decl, t, NULL_TREE, NULL_TREE);
t = build1 (ADDR_EXPR, mf_cache_structptr_type, t);
- t = build (MODIFY_EXPR, void_type_node, mf_elem, t);
+ t = build2 (MODIFY_EXPR, void_type_node, mf_elem, t);
SET_EXPR_LOCUS (t, locus);
gimplify_to_stmt_list (&t);
tsi_link_after (&tsi, t, TSI_CONTINUE_LINKING);
the edge to the THEN clause of the conditional jump as unlikely. */
/* Construct t <-- '__mf_elem->low > __mf_base'. */
- t = build (COMPONENT_REF, mf_uintptr_type,
- build1 (INDIRECT_REF, mf_cache_struct_type, mf_elem),
- TYPE_FIELDS (mf_cache_struct_type), NULL_TREE);
- t = build (GT_EXPR, boolean_type_node, t, mf_base);
+ t = build3 (COMPONENT_REF, mf_uintptr_type,
+ build1 (INDIRECT_REF, mf_cache_struct_type, mf_elem),
+ TYPE_FIELDS (mf_cache_struct_type), NULL_TREE);
+ t = build2 (GT_EXPR, boolean_type_node, t, mf_base);
/* Construct '__mf_elem->high < __mf_limit'.
Then build 'u <-- (u < v). */
- u = build (COMPONENT_REF, mf_uintptr_type,
- build1 (INDIRECT_REF, mf_cache_struct_type, mf_elem),
- TREE_CHAIN (TYPE_FIELDS (mf_cache_struct_type)), NULL_TREE);
+ u = build3 (COMPONENT_REF, mf_uintptr_type,
+ build1 (INDIRECT_REF, mf_cache_struct_type, mf_elem),
+ TREE_CHAIN (TYPE_FIELDS (mf_cache_struct_type)), NULL_TREE);
v = mf_limit;
- u = build (LT_EXPR, boolean_type_node, u, v);
+ u = build2 (LT_EXPR, boolean_type_node, u, v);
/* Build the composed conditional: t <-- 't || u'. Then store the
result of the evaluation of 't' in a temporary variable which we
can use as the condition for the conditional jump. */
- t = build (TRUTH_OR_EXPR, boolean_type_node, t, u);
+ t = build2 (TRUTH_OR_EXPR, boolean_type_node, t, u);
cond = create_tmp_var (boolean_type_node, "__mf_unlikely_cond");
- t = build (MODIFY_EXPR, boolean_type_node, cond, t);
+ t = build2 (MODIFY_EXPR, boolean_type_node, cond, t);
gimplify_to_stmt_list (&t);
tsi_link_after (&tsi, t, TSI_CONTINUE_LINKING);
/* Build the conditional jump. 'cond' is just a temporary so we can
simply build a void COND_EXPR. We do need labels in both arms though. */
- t = build (COND_EXPR, void_type_node, cond,
- build (GOTO_EXPR, void_type_node, tree_block_label (then_bb)),
- build (GOTO_EXPR, void_type_node, tree_block_label (join_bb)));
+ t = build3 (COND_EXPR, void_type_node, cond,
+ build1 (GOTO_EXPR, void_type_node, tree_block_label (then_bb)),
+ build1 (GOTO_EXPR, void_type_node, tree_block_label (join_bb)));
SET_EXPR_LOCUS (t, locus);
tsi_link_after (&tsi, t, TSI_CONTINUE_LINKING);
u = tree_cons (NULL_TREE, dirflag, u);
/* NB: we pass the overall [base..limit] range to mf_check. */
u = tree_cons (NULL_TREE,
- fold (build (PLUS_EXPR, integer_type_node,
- fold (build (MINUS_EXPR, mf_uintptr_type, mf_limit, mf_base)),
- integer_one_node)),
+ fold_build2 (PLUS_EXPR, integer_type_node,
+ fold_build2 (MINUS_EXPR, mf_uintptr_type, mf_limit, mf_base),
+ integer_one_node),
u);
u = tree_cons (NULL_TREE, mf_base, u);
t = build_function_call_expr (mf_check_fndecl, u);
if (! flag_mudflap_threads)
{
- t = build (MODIFY_EXPR, void_type_node,
- mf_cache_shift_decl_l, mf_cache_shift_decl);
+ t = build2 (MODIFY_EXPR, void_type_node,
+ mf_cache_shift_decl_l, mf_cache_shift_decl);
tsi_link_after (&tsi, t, TSI_CONTINUE_LINKING);
- t = build (MODIFY_EXPR, void_type_node,
- mf_cache_mask_decl_l, mf_cache_mask_decl);
+ t = build2 (MODIFY_EXPR, void_type_node,
+ mf_cache_mask_decl_l, mf_cache_mask_decl);
tsi_link_after (&tsi, t, TSI_CONTINUE_LINKING);
}
/* The decl must have its address taken. In the case of
arrays, this flag is also set if the indexes are not
compile-time known valid constants. */
- && TREE_ADDRESSABLE (decl)
+ && TREE_ADDRESSABLE (decl) /* XXX: not sufficient: return-by-value structs! */
/* The type of the variable must be complete. */
&& COMPLETE_OR_VOID_TYPE_P (TREE_TYPE (decl))
/* The decl hasn't been decomposed somehow. */
- && DECL_VALUE_EXPR (decl) == NULL);
+ && !DECL_HAS_VALUE_EXPR_P (decl));
}
mf_xform_derefs_1 (block_stmt_iterator *iter, tree *tp,
location_t *locus, tree dirflag)
{
- tree type, ptr_type, base, limit, addr, size, t;
+ tree type, base, limit, addr, size, t;
/* Don't instrument read operations. */
if (dirflag == integer_zero_node && flag_mudflap_ignore_reads)
t = *tp;
type = TREE_TYPE (t);
+
+ if (type == error_mark_node)
+ return;
+
size = TYPE_SIZE_UNIT (type);
switch (TREE_CODE (t))
recurse all the way down the nesting structure to figure it
out: looking just at the outer node is not enough. */
tree var;
- int component_ref_only = TREE_CODE (t) == COMPONENT_REF;
+ int component_ref_only = (TREE_CODE (t) == COMPONENT_REF);
+ /* If we have a bitfield component reference, we must note the
+ innermost addressable object in ELT, from which we will
+ construct the byte-addressable bounds of the bitfield. */
+ tree elt = NULL_TREE;
+ int bitfield_ref_p = (TREE_CODE (t) == COMPONENT_REF
+ && DECL_BIT_FIELD_TYPE (TREE_OPERAND (t, 1)));
/* Iterate to the top of the ARRAY_REF/COMPONENT_REF
containment hierarchy to find the outermost VAR_DECL. */
var = TREE_OPERAND (t, 0);
while (1)
{
+ if (bitfield_ref_p && elt == NULL_TREE
+ && (TREE_CODE (var) == ARRAY_REF || TREE_CODE (var) == COMPONENT_REF))
+ elt = var;
+
if (TREE_CODE (var) == ARRAY_REF)
{
component_ref_only = 0;
var = TREE_OPERAND (var, 0);
else if (INDIRECT_REF_P (var))
{
- component_ref_only = 0;
+ base = TREE_OPERAND (var, 0);
break;
}
else
{
gcc_assert (TREE_CODE (var) == VAR_DECL
- || TREE_CODE (var) == PARM_DECL);
+ || TREE_CODE (var) == PARM_DECL
+ || TREE_CODE (var) == RESULT_DECL
+ || TREE_CODE (var) == STRING_CST);
/* Don't instrument this access if the underlying
variable is not "eligible". This test matches
those arrays that have only known-valid indexes,
- and thus are not labeled TREE_ADDRESSABLE. */
- if (! mf_decl_eligible_p (var))
+ and thus are not labeled TREE_ADDRESSABLE. */
+ if (! mf_decl_eligible_p (var) || component_ref_only)
return;
else
- break;
+ {
+ base = build1 (ADDR_EXPR, build_pointer_type (TREE_TYPE (var)), var);
+ break;
+ }
}
}
Note that it's possible for such a struct variable to match
the eligible_p test because someone else might take its
address sometime. */
- if (component_ref_only)
- return;
-
- ptr_type = build_pointer_type (type);
/* We need special processing for bitfield components, because
their addresses cannot be taken. */
- if (TREE_CODE (t) == COMPONENT_REF
- && DECL_BIT_FIELD_TYPE (TREE_OPERAND (t, 1)))
+ if (bitfield_ref_p)
{
tree field = TREE_OPERAND (t, 1);
if (TREE_CODE (DECL_SIZE_UNIT (field)) == INTEGER_CST)
size = DECL_SIZE_UNIT (field);
- addr = TREE_OPERAND (TREE_OPERAND (t, 0), 0);
- addr = fold_convert (ptr_type_node, addr);
- addr = fold (build (PLUS_EXPR, ptr_type_node,
- addr, fold_convert (ptr_type_node,
- byte_position (field))));
+ if (elt)
+ elt = build1 (ADDR_EXPR, build_pointer_type (TREE_TYPE (elt)), elt);
+ addr = fold_convert (ptr_type_node, elt ? elt : base);
+ addr = fold_build2 (PLUS_EXPR, ptr_type_node,
+ addr, fold_convert (ptr_type_node,
+ byte_position (field)));
}
else
addr = build1 (ADDR_EXPR, build_pointer_type (type), t);
- if (INDIRECT_REF_P (var))
- base = TREE_OPERAND (var, 0);
- else
- base = build1 (ADDR_EXPR, build_pointer_type (TREE_TYPE (var)), var);
- limit = fold (build (MINUS_EXPR, mf_uintptr_type,
- fold (build2 (PLUS_EXPR, mf_uintptr_type,
- convert (mf_uintptr_type, addr),
- size)),
- integer_one_node));
+ limit = fold_build2 (MINUS_EXPR, mf_uintptr_type,
+ fold_build2 (PLUS_EXPR, mf_uintptr_type,
+ convert (mf_uintptr_type, addr),
+ size),
+ integer_one_node);
}
break;
case INDIRECT_REF:
addr = TREE_OPERAND (t, 0);
- ptr_type = TREE_TYPE (addr);
base = addr;
- limit = fold (build (MINUS_EXPR, ptr_type_node,
- fold (build (PLUS_EXPR, ptr_type_node, base, size)),
- integer_one_node));
+ limit = fold_build2 (MINUS_EXPR, ptr_type_node,
+ fold_build2 (PLUS_EXPR, ptr_type_node, base, size),
+ integer_one_node);
+ break;
+
+ case TARGET_MEM_REF:
+ addr = tree_mem_ref_addr (ptr_type_node, t);
+ base = addr;
+ limit = fold_build2 (MINUS_EXPR, ptr_type_node,
+ fold_build2 (PLUS_EXPR, ptr_type_node, base, size),
+ build_int_cst (ptr_type_node, 1));
break;
case ARRAY_RANGE_REF:
- warning ("mudflap checking not yet implemented for ARRAY_RANGE_REF");
+ warning (0, "mudflap checking not yet implemented for ARRAY_RANGE_REF");
return;
case BIT_FIELD_REF:
addr = TREE_OPERAND (TREE_OPERAND (t, 0), 0);
addr = convert (ptr_type_node, addr);
- addr = fold (build (PLUS_EXPR, ptr_type_node, addr, ofs));
+ addr = fold_build2 (PLUS_EXPR, ptr_type_node, addr, ofs);
base = addr;
- limit = fold (build (MINUS_EXPR, ptr_type_node,
- fold (build (PLUS_EXPR, ptr_type_node, base, size)),
- integer_one_node));
+ limit = fold_build2 (MINUS_EXPR, ptr_type_node,
+ fold_build2 (PLUS_EXPR, ptr_type_node, base, size),
+ integer_one_node);
}
break;
of their BIND_EXPR binding context, and we lose liveness information
for the declarations we wish to instrument. */
-static void
+static unsigned int
execute_mudflap_function_decls (void)
{
/* Don't instrument functions such as the synthetic constructor
built during mudflap_finish_file. */
if (mf_marked_p (current_function_decl) ||
DECL_ARTIFICIAL (current_function_decl))
- return;
+ return 0;
push_gimplify_context ();
DECL_ARGUMENTS (current_function_decl));
pop_gimplify_context (NULL);
+ return 0;
}
/* This struct is passed between mf_xform_decls to store state needed
/* Add the __mf_register call at the current appending point. */
if (tsi_end_p (initially_stmts))
- internal_error ("mudflap ran off end of BIND_EXPR body");
- tsi_link_before (&initially_stmts, register_fncall, TSI_SAME_STMT);
-
- /* Accumulate the FINALLY piece. */
- append_to_statement_list (unregister_fncall, &finally_stmts);
-
+ warning (0, "mudflap cannot track %qs in stub function",
+ IDENTIFIER_POINTER (DECL_NAME (decl)));
+ else
+ {
+ tsi_link_before (&initially_stmts, register_fncall, TSI_SAME_STMT);
+
+ /* Accumulate the FINALLY piece. */
+ append_to_statement_list (unregister_fncall, &finally_stmts);
+ }
mf_mark (decl);
}
/* Actually, (initially_stmts!=NULL) <=> (finally_stmts!=NULL) */
if (finally_stmts != NULL_TREE)
{
- tree t = build (TRY_FINALLY_EXPR, void_type_node,
- *stmt_list, finally_stmts);
+ tree t = build2 (TRY_FINALLY_EXPR, void_type_node,
+ *stmt_list, finally_stmts);
*stmt_list = NULL;
append_to_statement_list (t, stmt_list);
}
break;
}
- return NULL;
+ return NULL_TREE;
}
/* Perform the object lifetime tracking mudflap transform on the given function
delayed until program finish time. If they're still incomplete by
then, warnings are emitted. */
-static GTY (()) varray_type deferred_static_decls;
+static GTY (()) VEC(tree,gc) *deferred_static_decls;
/* A list of statements for calling __mf_register() at startup time. */
static GTY (()) tree enqueued_call_stmt_chain;
if (DECL_P (obj) && DECL_EXTERNAL (obj) && DECL_ARTIFICIAL (obj))
return;
- if (! deferred_static_decls)
- VARRAY_TREE_INIT (deferred_static_decls, 10, "deferred static list");
-
- VARRAY_PUSH_TREE (deferred_static_decls, obj);
+ VEC_safe_push (tree, gc, deferred_static_decls, obj);
}
{
tree ctor_statements = NULL_TREE;
+ /* No need to continue when there were errors. */
+ if (errorcount != 0 || sorrycount != 0)
+ return;
+
/* Insert a call to __mf_init. */
{
tree call2_stmt = build_function_call_expr (mf_init_fndecl, NULL_TREE);
if (deferred_static_decls)
{
size_t i;
- for (i = 0; i < VARRAY_ACTIVE_SIZE (deferred_static_decls); i++)
+ tree obj;
+ for (i = 0; VEC_iterate (tree, deferred_static_decls, i, obj); i++)
{
- tree obj = VARRAY_TREE (deferred_static_decls, i);
-
gcc_assert (DECL_P (obj));
if (mf_marked_p (obj))
Perform registration for non-static objects regardless of
TREE_USED or TREE_ADDRESSABLE, because they may be used
from other compilation units. */
- if (TREE_STATIC (obj) && ! TREE_ADDRESSABLE (obj))
+ if (! TREE_PUBLIC (obj) && ! TREE_ADDRESSABLE (obj))
continue;
if (! COMPLETE_TYPE_P (TREE_TYPE (obj)))
{
- warning ("mudflap cannot track unknown size extern %qs",
+ warning (0, "mudflap cannot track unknown size extern %qs",
IDENTIFIER_POINTER (DECL_NAME (obj)));
continue;
}
mf_varname_tree (obj));
}
- VARRAY_CLEAR (deferred_static_decls);
+ VEC_truncate (tree, deferred_static_decls, 0);
}
/* Append all the enqueued registration calls. */
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