#include "function.h"
#include "toplev.h"
#include "ggc.h"
-#include "target.h"
#include "coverage.h"
-#include "libfuncs.h"
#include "langhooks.h"
#include "hashtab.h"
+#include "tree-iterator.h"
+#include "cgraph.h"
#include "gcov-io.c"
/* Hash table of count data. */
static htab_t counts_hash = NULL;
-/* The names of the counter tables. */
+/* Trees representing the counter table arrays. */
+static GTY(()) tree tree_ctr_tables[GCOV_COUNTERS];
+
+/* The names of the counter tables. Not used if we're
+ generating counters at tree level. */
static GTY(()) rtx ctr_labels[GCOV_COUNTERS];
/* The names of merge functions for counters. */
GCOV_UNSIGNED2STRING (v, tag);
GCOV_UNSIGNED2STRING (e, GCOV_VERSION);
- warning ("`%s' is version `%.4s', expected version `%.4s'",
- da_file_name, v, e);
+ warning ("`%s' is version `%.*s', expected version `%.*s'",
+ da_file_name, 4, v, 4, e);
gcov_close ();
return;
}
if (!num)
return 1;
- if (!ctr_labels[counter])
+ if (!tree_ctr_tables[counter])
{
/* Generate and save a copy of this so it can be shared. */
+ /* We don't know the size yet; make it big enough that nobody
+ will make any clever transformation on it. */
char buf[20];
-
+ tree domain_tree
+ = build_index_type (build_int_2 (1000, 0)); /* replaced later */
+ tree gcov_type_array_type
+ = build_array_type (GCOV_TYPE_NODE, domain_tree);
+ tree_ctr_tables[counter]
+ = build_decl (VAR_DECL, NULL_TREE, gcov_type_array_type);
+ TREE_STATIC (tree_ctr_tables[counter]) = 1;
ASM_GENERATE_INTERNAL_LABEL (buf, "LPBX", counter + 1);
- ctr_labels[counter] = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (buf));
- SYMBOL_REF_FLAGS (ctr_labels[counter]) = SYMBOL_FLAG_LOCAL;
+ DECL_NAME (tree_ctr_tables[counter]) = get_identifier (buf);
+ DECL_ALIGN (tree_ctr_tables[counter]) = TYPE_ALIGN (GCOV_TYPE_NODE);
}
fn_b_ctrs[counter] = fn_n_ctrs[counter];
fn_n_ctrs[counter] += num;
/* Generate a MEM rtl to access COUNTER NO. */
rtx
-coverage_counter_ref (unsigned counter, unsigned no)
+rtl_coverage_counter_ref (unsigned counter, unsigned no)
{
unsigned gcov_size = tree_low_cst (TYPE_SIZE (GCOV_TYPE_NODE), 1);
enum machine_mode mode = mode_for_size (gcov_size, MODE_INT, 0);
if (no >= fn_n_ctrs[counter] - fn_b_ctrs[counter])
abort ();
no += prg_n_ctrs[counter] + fn_b_ctrs[counter];
+ if (!ctr_labels[counter])
+ {
+ ctr_labels[counter] = gen_rtx_SYMBOL_REF (Pmode,
+ ggc_strdup (IDENTIFIER_POINTER (DECL_NAME
+ (tree_ctr_tables[counter]))));
+ SYMBOL_REF_FLAGS (ctr_labels[counter]) = SYMBOL_FLAG_LOCAL;
+ }
ref = plus_constant (ctr_labels[counter], gcov_size / BITS_PER_UNIT * no);
ref = gen_rtx_MEM (mode, ref);
set_mem_alias_set (ref, new_alias_set ());
return ref;
}
+
+/* Generate a tree to access COUNTER NO. */
+
+tree
+tree_coverage_counter_ref (unsigned counter, unsigned no)
+{
+ tree domain_type = TYPE_DOMAIN (TREE_TYPE (tree_ctr_tables[counter]));
+
+ if (no >= fn_n_ctrs[counter] - fn_b_ctrs[counter])
+ abort ();
+ no += prg_n_ctrs[counter] + fn_b_ctrs[counter];
+
+ /* "no" here is an array index, scaled to bytes later. */
+ return build (ARRAY_REF, GCOV_TYPE_NODE, tree_ctr_tables[counter],
+ fold_convert (domain_type, build_int_2 (no, 0)),
+ TYPE_MIN_VALUE (domain_type),
+ size_binop (EXACT_DIV_EXPR, TYPE_SIZE_UNIT (GCOV_TYPE_NODE),
+ size_int (TYPE_ALIGN (GCOV_TYPE_NODE))));
+}
\f
/* Generate a checksum for a string. CHKSUM is the current
checksum. */
static unsigned
compute_checksum (void)
{
- unsigned chksum = DECL_SOURCE_LINE (current_function_decl);
+ expanded_location xloc
+ = expand_location (DECL_SOURCE_LOCATION (current_function_decl));
+ unsigned chksum = xloc.line;
- chksum = coverage_checksum_string (chksum,
- DECL_SOURCE_FILE (current_function_decl));
+ chksum = coverage_checksum_string (chksum, xloc.file);
chksum = coverage_checksum_string
(chksum, IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)));
if (!bbg_function_announced)
{
- const char *file = DECL_SOURCE_FILE (current_function_decl);
- unsigned line = DECL_SOURCE_LINE (current_function_decl);
+ expanded_location xloc
+ = expand_location (DECL_SOURCE_LOCATION (current_function_decl));
unsigned long offset;
if (!bbg_file_opened)
gcov_write_unsigned (compute_checksum ());
gcov_write_string (IDENTIFIER_POINTER
(DECL_ASSEMBLER_NAME (current_function_decl)));
- gcov_write_string (file);
- gcov_write_unsigned (line);
+ gcov_write_string (xloc.file);
+ gcov_write_unsigned (xloc.line);
gcov_write_length (offset);
bbg_function_announced = 1;
if (prg_n_ctrs[counter])
{
- tree array_type, array;
+ tree array_type;
array_type = build_index_type (build_int_2 (prg_n_ctrs[counter] - 1, 0));
array_type = build_array_type (TREE_TYPE (TREE_TYPE (fields)),
array_type);
- array = build_decl (VAR_DECL, NULL_TREE, array_type);
- TREE_STATIC (array) = 1;
- DECL_NAME (array) = get_identifier (XSTR (ctr_labels[counter], 0));
- assemble_variable (array, 0, 0, 0);
+ TREE_TYPE (tree_ctr_tables[counter]) = array_type;
+ DECL_SIZE (tree_ctr_tables[counter]) = TYPE_SIZE (array_type);
+ DECL_SIZE_UNIT (tree_ctr_tables[counter]) = TYPE_SIZE_UNIT (array_type);
+ assemble_variable (tree_ctr_tables[counter], 0, 0, 0);
value = tree_cons (fields,
- build1 (ADDR_EXPR, TREE_TYPE (fields), array),
+ build1 (ADDR_EXPR, TREE_TYPE (fields),
+ tree_ctr_tables[counter]),
value);
}
else
static void
create_coverage (void)
{
- tree gcov_info, gcov_info_value;
- char name[20];
- char *ctor_name;
- tree ctor;
- rtx gcov_info_address;
+ tree gcov_info, gcov_init, body, t;
+ char name_buf[32];
no_coverage = 1; /* Disable any further coverage. */
if (!prg_ctr_mask)
return;
- gcov_info_value = build_gcov_info ();
-
- gcov_info = build_decl (VAR_DECL, NULL_TREE, TREE_TYPE (gcov_info_value));
- DECL_INITIAL (gcov_info) = gcov_info_value;
+ t = build_gcov_info ();
+ gcov_info = build_decl (VAR_DECL, NULL_TREE, TREE_TYPE (t));
TREE_STATIC (gcov_info) = 1;
- ASM_GENERATE_INTERNAL_LABEL (name, "LPBX", 0);
- DECL_NAME (gcov_info) = get_identifier (name);
+ ASM_GENERATE_INTERNAL_LABEL (name_buf, "LPBX", 0);
+ DECL_NAME (gcov_info) = get_identifier (name_buf);
+ DECL_INITIAL (gcov_info) = t;
/* Build structure. */
assemble_variable (gcov_info, 0, 0, 0);
- /* Build the constructor function to invoke __gcov_init. */
- ctor_name = concat (IDENTIFIER_POINTER (get_file_function_name ('I')),
- "_GCOV", NULL);
- ctor = build_decl (FUNCTION_DECL, get_identifier (ctor_name),
- build_function_type (void_type_node, NULL_TREE));
- free (ctor_name);
- DECL_EXTERNAL (ctor) = 0;
-
- /* It can be a static function as long as collect2 does not have
- to scan the object file to find its ctor/dtor routine. */
- TREE_PUBLIC (ctor) = ! targetm.have_ctors_dtors;
- TREE_USED (ctor) = 1;
- DECL_RESULT (ctor) = build_decl (RESULT_DECL, NULL_TREE, void_type_node);
- DECL_UNINLINABLE (ctor) = 1;
-
- ctor = lang_hooks.decls.pushdecl (ctor);
- rest_of_decl_compilation (ctor, 0, 1, 0);
- announce_function (ctor);
- current_function_decl = ctor;
- make_decl_rtl (ctor, NULL);
- init_function_start (ctor);
- expand_function_start (ctor, 0);
- /* Actually generate the code to call __gcov_init. */
- gcov_info_address = force_reg (Pmode, XEXP (DECL_RTL (gcov_info), 0));
- emit_library_call (gcov_init_libfunc, LCT_NORMAL, VOIDmode, 1,
- gcov_info_address, Pmode);
-
- expand_function_end ();
- /* Create a dummy BLOCK. */
- DECL_INITIAL (ctor) = make_node (BLOCK);
- TREE_USED (DECL_INITIAL (ctor)) = 1;
-
- rest_of_compilation (ctor);
-
- if (! quiet_flag)
- fflush (asm_out_file);
- current_function_decl = NULL_TREE;
-
- if (targetm.have_ctors_dtors)
- targetm.asm_out.constructor (XEXP (DECL_RTL (ctor), 0),
- DEFAULT_INIT_PRIORITY);
+ /* Build a decl for __gcov_init. */
+ t = build_pointer_type (TREE_TYPE (gcov_info));
+ t = build_function_type_list (void_type_node, t, NULL);
+ t = build_decl (FUNCTION_DECL, get_identifier ("__gcov_init"), t);
+ TREE_PUBLIC (t) = 1;
+ DECL_EXTERNAL (t) = 1;
+ gcov_init = t;
+
+ /* Generate a call to __gcov_init(&gcov_info). */
+ body = NULL;
+ t = build_fold_addr_expr (gcov_info);
+ t = tree_cons (NULL, t, NULL);
+ t = build_function_call_expr (gcov_init, t);
+ append_to_statement_list (t, &body);
+
+ /* Generate a constructor to run it. */
+ cgraph_build_static_cdtor ('I', body, DEFAULT_INIT_PRIORITY);
}
\f
/* Perform file-level initialization. Read in data file, generate name
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