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re PR sanitizer/55439 (ThreadSanitizer: handle atomic operations)

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PR sanitizer/55439
	* Makefile.in (tsan.o): Depend on tree-ssa-propagate.h.
	* sanitizer.def: Add __tsan_atomic* builtins.
	* asan.c (initialize_sanitizer_builtins): Adjust to also
	initialize __tsan_atomic* builtins.
	* tsan.c: Include tree-ssa-propagate.h.
	(enum tsan_atomic_action): New enum.
	(tsan_atomic_table): New table.
	(instrument_builtin_call): New function.
	(instrument_gimple): Take pointer to gimple_stmt_iterator
	instead of gimple_stmt_iterator.  Call instrument_builtin_call
	on builtin call stmts.
	(instrument_memory_accesses): Adjust instrument_gimple caller.
	* builtin-types.def (BT_FN_BOOL_VPTR_PTR_I1_INT_INT,
	BT_FN_BOOL_VPTR_PTR_I2_INT_INT, BT_FN_BOOL_VPTR_PTR_I4_INT_INT,
	BT_FN_BOOL_VPTR_PTR_I8_INT_INT, BT_FN_BOOL_VPTR_PTR_I16_INT_INT): New.

From-SVN: r194133
This commit is contained in:
Jakub Jelinek 2012-12-04 14:20:20 +01:00 • committed by Jakub Jelinek
parent 41d37c5656
commit c954bddd5f
6 changed files with 685 additions and 8 deletions
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19
gcc/ChangeLog
View file

@ -1,3 +1,22 @@
2012-12-03 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/55439
* Makefile.in (tsan.o): Depend on tree-ssa-propagate.h.
* sanitizer.def: Add __tsan_atomic* builtins.
* asan.c (initialize_sanitizer_builtins): Adjust to also
initialize __tsan_atomic* builtins.
* tsan.c: Include tree-ssa-propagate.h.
(enum tsan_atomic_action): New enum.
(tsan_atomic_table): New table.
(instrument_builtin_call): New function.
(instrument_gimple): Take pointer to gimple_stmt_iterator
instead of gimple_stmt_iterator. Call instrument_builtin_call
on builtin call stmts.
(instrument_memory_accesses): Adjust instrument_gimple caller.
* builtin-types.def (BT_FN_BOOL_VPTR_PTR_I1_INT_INT,
BT_FN_BOOL_VPTR_PTR_I2_INT_INT, BT_FN_BOOL_VPTR_PTR_I4_INT_INT,
BT_FN_BOOL_VPTR_PTR_I8_INT_INT, BT_FN_BOOL_VPTR_PTR_I16_INT_INT): New.
2012-12-04 Tejas Belagod <tejas.belagod@arm.com>
* config/aarch64/aarch64.c (aarch64_simd_vector_alignment,

3
gcc/Makefile.in
View file

@ -2234,7 +2234,8 @@ tsan.o : $(CONFIG_H) $(SYSTEM_H) $(TREE_H) $(TREE_INLINE_H) \
$(TM_H) coretypes.h $(TREE_DUMP_H) $(TREE_PASS_H) $(CGRAPH_H) $(GGC_H) \
$(BASIC_BLOCK_H) $(FLAGS_H) $(FUNCTION_H) \
$(TM_P_H) $(TREE_FLOW_H) $(DIAGNOSTIC_CORE_H) $(GIMPLE_H) tree-iterator.h \
intl.h cfghooks.h output.h options.h c-family/c-common.h tsan.h asan.h
intl.h cfghooks.h output.h options.h c-family/c-common.h tsan.h asan.h \
tree-ssa-propagate.h
tree-ssa-tail-merge.o: tree-ssa-tail-merge.c \
$(SYSTEM_H) $(CONFIG_H) coretypes.h $(TM_H) $(BITMAP_H) \
$(FLAGS_H) $(TM_P_H) $(BASIC_BLOCK_H) \

52
gcc/asan.c
View file

@ -1505,6 +1505,58 @@ initialize_sanitizer_builtins (void)
= build_function_type_list (void_type_node, ptr_type_node,
build_nonstandard_integer_type (POINTER_SIZE,
1), NULL_TREE);
tree BT_FN_VOID_INT
= build_function_type_list (void_type_node, integer_type_node, NULL_TREE);
tree BT_FN_BOOL_VPTR_PTR_IX_INT_INT[5];
tree BT_FN_IX_CONST_VPTR_INT[5];
tree BT_FN_IX_VPTR_IX_INT[5];
tree BT_FN_VOID_VPTR_IX_INT[5];
tree vptr
= build_pointer_type (build_qualified_type (void_type_node,
TYPE_QUAL_VOLATILE));
tree cvptr
= build_pointer_type (build_qualified_type (void_type_node,
TYPE_QUAL_VOLATILE
|TYPE_QUAL_CONST));
tree boolt
= lang_hooks.types.type_for_size (BOOL_TYPE_SIZE, 1);
int i;
for (i = 0; i < 5; i++)
{
tree ix = build_nonstandard_integer_type (BITS_PER_UNIT * (1 << i), 1);
BT_FN_BOOL_VPTR_PTR_IX_INT_INT[i]
= build_function_type_list (boolt, vptr, ptr_type_node, ix,
integer_type_node, integer_type_node,
NULL_TREE);
BT_FN_IX_CONST_VPTR_INT[i]
= build_function_type_list (ix, cvptr, integer_type_node, NULL_TREE);
BT_FN_IX_VPTR_IX_INT[i]
= build_function_type_list (ix, vptr, ix, integer_type_node,
NULL_TREE);
BT_FN_VOID_VPTR_IX_INT[i]
= build_function_type_list (void_type_node, vptr, ix,
integer_type_node, NULL_TREE);
}
#define BT_FN_BOOL_VPTR_PTR_I1_INT_INT BT_FN_BOOL_VPTR_PTR_IX_INT_INT[0]
#define BT_FN_I1_CONST_VPTR_INT BT_FN_IX_CONST_VPTR_INT[0]
#define BT_FN_I1_VPTR_I1_INT BT_FN_IX_VPTR_IX_INT[0]
#define BT_FN_VOID_VPTR_I1_INT BT_FN_VOID_VPTR_IX_INT[0]
#define BT_FN_BOOL_VPTR_PTR_I2_INT_INT BT_FN_BOOL_VPTR_PTR_IX_INT_INT[1]
#define BT_FN_I2_CONST_VPTR_INT BT_FN_IX_CONST_VPTR_INT[1]
#define BT_FN_I2_VPTR_I2_INT BT_FN_IX_VPTR_IX_INT[1]
#define BT_FN_VOID_VPTR_I2_INT BT_FN_VOID_VPTR_IX_INT[1]
#define BT_FN_BOOL_VPTR_PTR_I4_INT_INT BT_FN_BOOL_VPTR_PTR_IX_INT_INT[2]
#define BT_FN_I4_CONST_VPTR_INT BT_FN_IX_CONST_VPTR_INT[2]
#define BT_FN_I4_VPTR_I4_INT BT_FN_IX_VPTR_IX_INT[2]
#define BT_FN_VOID_VPTR_I4_INT BT_FN_VOID_VPTR_IX_INT[2]
#define BT_FN_BOOL_VPTR_PTR_I8_INT_INT BT_FN_BOOL_VPTR_PTR_IX_INT_INT[3]
#define BT_FN_I8_CONST_VPTR_INT BT_FN_IX_CONST_VPTR_INT[3]
#define BT_FN_I8_VPTR_I8_INT BT_FN_IX_VPTR_IX_INT[3]
#define BT_FN_VOID_VPTR_I8_INT BT_FN_VOID_VPTR_IX_INT[3]
#define BT_FN_BOOL_VPTR_PTR_I16_INT_INT BT_FN_BOOL_VPTR_PTR_IX_INT_INT[4]
#define BT_FN_I16_CONST_VPTR_INT BT_FN_IX_CONST_VPTR_INT[4]
#define BT_FN_I16_VPTR_I16_INT BT_FN_IX_VPTR_IX_INT[4]
#define BT_FN_VOID_VPTR_I16_INT BT_FN_VOID_VPTR_IX_INT[4]
#undef ATTR_NOTHROW_LEAF_LIST
#define ATTR_NOTHROW_LEAF_LIST ECF_NOTHROW | ECF_LEAF
#undef ATTR_NORETURN_NOTHROW_LEAF_LIST

11
gcc/builtin-types.def
View file

@ -456,7 +456,16 @@ DEF_FUNCTION_TYPE_5 (BT_FN_BOOL_LONG_LONG_LONG_LONGPTR_LONGPTR,
BT_PTR_LONG, BT_PTR_LONG)
DEF_FUNCTION_TYPE_5 (BT_FN_VOID_SIZE_VPTR_PTR_PTR_INT, BT_VOID, BT_SIZE,
BT_VOLATILE_PTR, BT_PTR, BT_PTR, BT_INT)
DEF_FUNCTION_TYPE_5 (BT_FN_BOOL_VPTR_PTR_I1_INT_INT,
BT_BOOL, BT_VOLATILE_PTR, BT_PTR, BT_I1, BT_INT, BT_INT)
DEF_FUNCTION_TYPE_5 (BT_FN_BOOL_VPTR_PTR_I2_INT_INT,
BT_BOOL, BT_VOLATILE_PTR, BT_PTR, BT_I2, BT_INT, BT_INT)
DEF_FUNCTION_TYPE_5 (BT_FN_BOOL_VPTR_PTR_I4_INT_INT,
BT_BOOL, BT_VOLATILE_PTR, BT_PTR, BT_I4, BT_INT, BT_INT)
DEF_FUNCTION_TYPE_5 (BT_FN_BOOL_VPTR_PTR_I8_INT_INT,
BT_BOOL, BT_VOLATILE_PTR, BT_PTR, BT_I8, BT_INT, BT_INT)
DEF_FUNCTION_TYPE_5 (BT_FN_BOOL_VPTR_PTR_I16_INT_INT,
BT_BOOL, BT_VOLATILE_PTR, BT_PTR, BT_I16, BT_INT, BT_INT)
DEF_FUNCTION_TYPE_6 (BT_FN_INT_STRING_SIZE_INT_SIZE_CONST_STRING_VALIST_ARG,
BT_INT, BT_STRING, BT_SIZE, BT_INT, BT_SIZE,

193
gcc/sanitizer.def
View file

@ -85,3 +85,196 @@ DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE8, "__tsan_write8",
BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE16, "__tsan_write16",
BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_LOAD,
"__tsan_atomic8_load",
BT_FN_I1_CONST_VPTR_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_LOAD,
"__tsan_atomic16_load",
BT_FN_I2_CONST_VPTR_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_LOAD,
"__tsan_atomic32_load",
BT_FN_I4_CONST_VPTR_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_LOAD,
"__tsan_atomic64_load",
BT_FN_I8_CONST_VPTR_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_LOAD,
"__tsan_atomic128_load",
BT_FN_I16_CONST_VPTR_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_STORE,
"__tsan_atomic8_store",
BT_FN_VOID_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_STORE,
"__tsan_atomic16_store",
BT_FN_VOID_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_STORE,
"__tsan_atomic32_store",
BT_FN_VOID_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_STORE,
"__tsan_atomic64_store",
BT_FN_VOID_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_STORE,
"__tsan_atomic128_store",
BT_FN_VOID_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_EXCHANGE,
"__tsan_atomic8_exchange",
BT_FN_I1_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_EXCHANGE,
"__tsan_atomic16_exchange",
BT_FN_I2_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_EXCHANGE,
"__tsan_atomic32_exchange",
BT_FN_I4_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_EXCHANGE,
"__tsan_atomic64_exchange",
BT_FN_I8_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_EXCHANGE,
"__tsan_atomic128_exchange",
BT_FN_I16_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_FETCH_ADD,
"__tsan_atomic8_fetch_add",
BT_FN_I1_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_FETCH_ADD,
"__tsan_atomic16_fetch_add",
BT_FN_I2_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_FETCH_ADD,
"__tsan_atomic32_fetch_add",
BT_FN_I4_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_FETCH_ADD,
"__tsan_atomic64_fetch_add",
BT_FN_I8_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_FETCH_ADD,
"__tsan_atomic128_fetch_add",
BT_FN_I16_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_FETCH_SUB,
"__tsan_atomic8_fetch_sub",
BT_FN_I1_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_FETCH_SUB,
"__tsan_atomic16_fetch_sub",
BT_FN_I2_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_FETCH_SUB,
"__tsan_atomic32_fetch_sub",
BT_FN_I4_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_FETCH_SUB,
"__tsan_atomic64_fetch_sub",
BT_FN_I8_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_FETCH_SUB,
"__tsan_atomic128_fetch_sub",
BT_FN_I16_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_FETCH_AND,
"__tsan_atomic8_fetch_and",
BT_FN_I1_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_FETCH_AND,
"__tsan_atomic16_fetch_and",
BT_FN_I2_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_FETCH_AND,
"__tsan_atomic32_fetch_and",
BT_FN_I4_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_FETCH_AND,
"__tsan_atomic64_fetch_and",
BT_FN_I8_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_FETCH_AND,
"__tsan_atomic128_fetch_and",
BT_FN_I16_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_FETCH_OR,
"__tsan_atomic8_fetch_or",
BT_FN_I1_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_FETCH_OR,
"__tsan_atomic16_fetch_or",
BT_FN_I2_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_FETCH_OR,
"__tsan_atomic32_fetch_or",
BT_FN_I4_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_FETCH_OR,
"__tsan_atomic64_fetch_or",
BT_FN_I8_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_FETCH_OR,
"__tsan_atomic128_fetch_or",
BT_FN_I16_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_FETCH_XOR,
"__tsan_atomic8_fetch_xor",
BT_FN_I1_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_FETCH_XOR,
"__tsan_atomic16_fetch_xor",
BT_FN_I2_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_FETCH_XOR,
"__tsan_atomic32_fetch_xor",
BT_FN_I4_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_FETCH_XOR,
"__tsan_atomic64_fetch_xor",
BT_FN_I8_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_FETCH_XOR,
"__tsan_atomic128_fetch_xor",
BT_FN_I16_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_FETCH_NAND,
"__tsan_atomic8_fetch_nand",
BT_FN_I1_VPTR_I1_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_FETCH_NAND,
"__tsan_atomic16_fetch_nand",
BT_FN_I2_VPTR_I2_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_FETCH_NAND,
"__tsan_atomic32_fetch_nand",
BT_FN_I4_VPTR_I4_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_FETCH_NAND,
"__tsan_atomic64_fetch_nand",
BT_FN_I8_VPTR_I8_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_FETCH_NAND,
"__tsan_atomic128_fetch_nand",
BT_FN_I16_VPTR_I16_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_COMPARE_EXCHANGE_STRONG,
"__tsan_atomic8_compare_exchange_strong",
BT_FN_BOOL_VPTR_PTR_I1_INT_INT,
ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_COMPARE_EXCHANGE_STRONG,
"__tsan_atomic16_compare_exchange_strong",
BT_FN_BOOL_VPTR_PTR_I2_INT_INT,
ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_COMPARE_EXCHANGE_STRONG,
"__tsan_atomic32_compare_exchange_strong",
BT_FN_BOOL_VPTR_PTR_I4_INT_INT,
ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_COMPARE_EXCHANGE_STRONG,
"__tsan_atomic64_compare_exchange_strong",
BT_FN_BOOL_VPTR_PTR_I8_INT_INT,
ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_COMPARE_EXCHANGE_STRONG,
"__tsan_atomic128_compare_exchange_strong",
BT_FN_BOOL_VPTR_PTR_I16_INT_INT,
ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC8_COMPARE_EXCHANGE_WEAK,
"__tsan_atomic8_compare_exchange_weak",
BT_FN_BOOL_VPTR_PTR_I1_INT_INT,
ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC16_COMPARE_EXCHANGE_WEAK,
"__tsan_atomic16_compare_exchange_weak",
BT_FN_BOOL_VPTR_PTR_I2_INT_INT,
ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC32_COMPARE_EXCHANGE_WEAK,
"__tsan_atomic32_compare_exchange_weak",
BT_FN_BOOL_VPTR_PTR_I4_INT_INT,
ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC64_COMPARE_EXCHANGE_WEAK,
"__tsan_atomic64_compare_exchange_weak",
BT_FN_BOOL_VPTR_PTR_I8_INT_INT,
ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC128_COMPARE_EXCHANGE_WEAK,
"__tsan_atomic128_compare_exchange_weak",
BT_FN_BOOL_VPTR_PTR_I16_INT_INT,
ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC_THREAD_FENCE,
"__tsan_atomic_thread_fence",
BT_FN_VOID_INT, ATTR_NOTHROW_LEAF_LIST)
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_ATOMIC_SIGNAL_FENCE,
"__tsan_atomic_signal_fence",
BT_FN_VOID_INT, ATTR_NOTHROW_LEAF_LIST)

415
gcc/tsan.c
View file

@ -37,6 +37,7 @@ along with GCC; see the file COPYING3. If not see
#include "target.h"
#include "cgraph.h"
#include "diagnostic.h"
#include "tree-ssa-propagate.h"
#include "tsan.h"
#include "asan.h"
@ -180,33 +181,435 @@ instrument_expr (gimple_stmt_iterator gsi, tree expr, bool is_write)
return true;
}
/* Actions for sync/atomic builtin transformations. */
enum tsan_atomic_action
{
check_last, add_seq_cst, add_acquire, weak_cas, strong_cas,
bool_cas, val_cas, lock_release, fetch_op, fetch_op_seq_cst
};
/* Table how to map sync/atomic builtins to their corresponding
tsan equivalents. */
static struct tsan_map_atomic
{
enum built_in_function fcode, tsan_fcode;
enum tsan_atomic_action action;
enum tree_code code;
} tsan_atomic_table[] =
{
#define TRANSFORM(fcode, tsan_fcode, action, code) \
{ BUILT_IN_##fcode, BUILT_IN_##tsan_fcode, action, code }
#define CHECK_LAST(fcode, tsan_fcode) \
TRANSFORM (fcode, tsan_fcode, check_last, ERROR_MARK)
#define ADD_SEQ_CST(fcode, tsan_fcode) \
TRANSFORM (fcode, tsan_fcode, add_seq_cst, ERROR_MARK)
#define ADD_ACQUIRE(fcode, tsan_fcode) \
TRANSFORM (fcode, tsan_fcode, add_acquire, ERROR_MARK)
#define WEAK_CAS(fcode, tsan_fcode) \
TRANSFORM (fcode, tsan_fcode, weak_cas, ERROR_MARK)
#define STRONG_CAS(fcode, tsan_fcode) \
TRANSFORM (fcode, tsan_fcode, strong_cas, ERROR_MARK)
#define BOOL_CAS(fcode, tsan_fcode) \
TRANSFORM (fcode, tsan_fcode, bool_cas, ERROR_MARK)
#define VAL_CAS(fcode, tsan_fcode) \
TRANSFORM (fcode, tsan_fcode, val_cas, ERROR_MARK)
#define LOCK_RELEASE(fcode, tsan_fcode) \
TRANSFORM (fcode, tsan_fcode, lock_release, ERROR_MARK)
#define FETCH_OP(fcode, tsan_fcode, code) \
TRANSFORM (fcode, tsan_fcode, fetch_op, code)
#define FETCH_OPS(fcode, tsan_fcode, code) \
TRANSFORM (fcode, tsan_fcode, fetch_op_seq_cst, code)
CHECK_LAST (ATOMIC_LOAD_1, TSAN_ATOMIC8_LOAD),
CHECK_LAST (ATOMIC_LOAD_2, TSAN_ATOMIC16_LOAD),
CHECK_LAST (ATOMIC_LOAD_4, TSAN_ATOMIC32_LOAD),
CHECK_LAST (ATOMIC_LOAD_8, TSAN_ATOMIC64_LOAD),
CHECK_LAST (ATOMIC_LOAD_16, TSAN_ATOMIC128_LOAD),
CHECK_LAST (ATOMIC_STORE_1, TSAN_ATOMIC8_STORE),
CHECK_LAST (ATOMIC_STORE_2, TSAN_ATOMIC16_STORE),
CHECK_LAST (ATOMIC_STORE_4, TSAN_ATOMIC32_STORE),
CHECK_LAST (ATOMIC_STORE_8, TSAN_ATOMIC64_STORE),
CHECK_LAST (ATOMIC_STORE_16, TSAN_ATOMIC128_STORE),
CHECK_LAST (ATOMIC_EXCHANGE_1, TSAN_ATOMIC8_EXCHANGE),
CHECK_LAST (ATOMIC_EXCHANGE_2, TSAN_ATOMIC16_EXCHANGE),
CHECK_LAST (ATOMIC_EXCHANGE_4, TSAN_ATOMIC32_EXCHANGE),
CHECK_LAST (ATOMIC_EXCHANGE_8, TSAN_ATOMIC64_EXCHANGE),
CHECK_LAST (ATOMIC_EXCHANGE_16, TSAN_ATOMIC128_EXCHANGE),
CHECK_LAST (ATOMIC_FETCH_ADD_1, TSAN_ATOMIC8_FETCH_ADD),
CHECK_LAST (ATOMIC_FETCH_ADD_2, TSAN_ATOMIC16_FETCH_ADD),
CHECK_LAST (ATOMIC_FETCH_ADD_4, TSAN_ATOMIC32_FETCH_ADD),
CHECK_LAST (ATOMIC_FETCH_ADD_8, TSAN_ATOMIC64_FETCH_ADD),
CHECK_LAST (ATOMIC_FETCH_ADD_16, TSAN_ATOMIC128_FETCH_ADD),
CHECK_LAST (ATOMIC_FETCH_SUB_1, TSAN_ATOMIC8_FETCH_SUB),
CHECK_LAST (ATOMIC_FETCH_SUB_2, TSAN_ATOMIC16_FETCH_SUB),
CHECK_LAST (ATOMIC_FETCH_SUB_4, TSAN_ATOMIC32_FETCH_SUB),
CHECK_LAST (ATOMIC_FETCH_SUB_8, TSAN_ATOMIC64_FETCH_SUB),
CHECK_LAST (ATOMIC_FETCH_SUB_16, TSAN_ATOMIC128_FETCH_SUB),
CHECK_LAST (ATOMIC_FETCH_AND_1, TSAN_ATOMIC8_FETCH_AND),
CHECK_LAST (ATOMIC_FETCH_AND_2, TSAN_ATOMIC16_FETCH_AND),
CHECK_LAST (ATOMIC_FETCH_AND_4, TSAN_ATOMIC32_FETCH_AND),
CHECK_LAST (ATOMIC_FETCH_AND_8, TSAN_ATOMIC64_FETCH_AND),
CHECK_LAST (ATOMIC_FETCH_AND_16, TSAN_ATOMIC128_FETCH_AND),
CHECK_LAST (ATOMIC_FETCH_OR_1, TSAN_ATOMIC8_FETCH_OR),
CHECK_LAST (ATOMIC_FETCH_OR_2, TSAN_ATOMIC16_FETCH_OR),
CHECK_LAST (ATOMIC_FETCH_OR_4, TSAN_ATOMIC32_FETCH_OR),
CHECK_LAST (ATOMIC_FETCH_OR_8, TSAN_ATOMIC64_FETCH_OR),
CHECK_LAST (ATOMIC_FETCH_OR_16, TSAN_ATOMIC128_FETCH_OR),
CHECK_LAST (ATOMIC_FETCH_XOR_1, TSAN_ATOMIC8_FETCH_XOR),
CHECK_LAST (ATOMIC_FETCH_XOR_2, TSAN_ATOMIC16_FETCH_XOR),
CHECK_LAST (ATOMIC_FETCH_XOR_4, TSAN_ATOMIC32_FETCH_XOR),
CHECK_LAST (ATOMIC_FETCH_XOR_8, TSAN_ATOMIC64_FETCH_XOR),
CHECK_LAST (ATOMIC_FETCH_XOR_16, TSAN_ATOMIC128_FETCH_XOR),
CHECK_LAST (ATOMIC_FETCH_NAND_1, TSAN_ATOMIC8_FETCH_NAND),
CHECK_LAST (ATOMIC_FETCH_NAND_2, TSAN_ATOMIC16_FETCH_NAND),
CHECK_LAST (ATOMIC_FETCH_NAND_4, TSAN_ATOMIC32_FETCH_NAND),
CHECK_LAST (ATOMIC_FETCH_NAND_8, TSAN_ATOMIC64_FETCH_NAND),
CHECK_LAST (ATOMIC_FETCH_NAND_16, TSAN_ATOMIC128_FETCH_NAND),
CHECK_LAST (ATOMIC_THREAD_FENCE, TSAN_ATOMIC_THREAD_FENCE),
CHECK_LAST (ATOMIC_SIGNAL_FENCE, TSAN_ATOMIC_SIGNAL_FENCE),
FETCH_OP (ATOMIC_ADD_FETCH_1, TSAN_ATOMIC8_FETCH_ADD, PLUS_EXPR),
FETCH_OP (ATOMIC_ADD_FETCH_2, TSAN_ATOMIC16_FETCH_ADD, PLUS_EXPR),
FETCH_OP (ATOMIC_ADD_FETCH_4, TSAN_ATOMIC32_FETCH_ADD, PLUS_EXPR),
FETCH_OP (ATOMIC_ADD_FETCH_8, TSAN_ATOMIC64_FETCH_ADD, PLUS_EXPR),
FETCH_OP (ATOMIC_ADD_FETCH_16, TSAN_ATOMIC128_FETCH_ADD, PLUS_EXPR),
FETCH_OP (ATOMIC_SUB_FETCH_1, TSAN_ATOMIC8_FETCH_SUB, MINUS_EXPR),
FETCH_OP (ATOMIC_SUB_FETCH_2, TSAN_ATOMIC16_FETCH_SUB, MINUS_EXPR),
FETCH_OP (ATOMIC_SUB_FETCH_4, TSAN_ATOMIC32_FETCH_SUB, MINUS_EXPR),
FETCH_OP (ATOMIC_SUB_FETCH_8, TSAN_ATOMIC64_FETCH_SUB, MINUS_EXPR),
FETCH_OP (ATOMIC_SUB_FETCH_16, TSAN_ATOMIC128_FETCH_SUB, MINUS_EXPR),
FETCH_OP (ATOMIC_AND_FETCH_1, TSAN_ATOMIC8_FETCH_AND, BIT_AND_EXPR),
FETCH_OP (ATOMIC_AND_FETCH_2, TSAN_ATOMIC16_FETCH_AND, BIT_AND_EXPR),
FETCH_OP (ATOMIC_AND_FETCH_4, TSAN_ATOMIC32_FETCH_AND, BIT_AND_EXPR),
FETCH_OP (ATOMIC_AND_FETCH_8, TSAN_ATOMIC64_FETCH_AND, BIT_AND_EXPR),
FETCH_OP (ATOMIC_AND_FETCH_16, TSAN_ATOMIC128_FETCH_AND, BIT_AND_EXPR),
FETCH_OP (ATOMIC_OR_FETCH_1, TSAN_ATOMIC8_FETCH_OR, BIT_IOR_EXPR),
FETCH_OP (ATOMIC_OR_FETCH_2, TSAN_ATOMIC16_FETCH_OR, BIT_IOR_EXPR),
FETCH_OP (ATOMIC_OR_FETCH_4, TSAN_ATOMIC32_FETCH_OR, BIT_IOR_EXPR),
FETCH_OP (ATOMIC_OR_FETCH_8, TSAN_ATOMIC64_FETCH_OR, BIT_IOR_EXPR),
FETCH_OP (ATOMIC_OR_FETCH_16, TSAN_ATOMIC128_FETCH_OR, BIT_IOR_EXPR),
FETCH_OP (ATOMIC_XOR_FETCH_1, TSAN_ATOMIC8_FETCH_XOR, BIT_XOR_EXPR),
FETCH_OP (ATOMIC_XOR_FETCH_2, TSAN_ATOMIC16_FETCH_XOR, BIT_XOR_EXPR),
FETCH_OP (ATOMIC_XOR_FETCH_4, TSAN_ATOMIC32_FETCH_XOR, BIT_XOR_EXPR),
FETCH_OP (ATOMIC_XOR_FETCH_8, TSAN_ATOMIC64_FETCH_XOR, BIT_XOR_EXPR),
FETCH_OP (ATOMIC_XOR_FETCH_16, TSAN_ATOMIC128_FETCH_XOR, BIT_XOR_EXPR),
FETCH_OP (ATOMIC_NAND_FETCH_1, TSAN_ATOMIC8_FETCH_NAND, BIT_NOT_EXPR),
FETCH_OP (ATOMIC_NAND_FETCH_2, TSAN_ATOMIC16_FETCH_NAND, BIT_NOT_EXPR),
FETCH_OP (ATOMIC_NAND_FETCH_4, TSAN_ATOMIC32_FETCH_NAND, BIT_NOT_EXPR),
FETCH_OP (ATOMIC_NAND_FETCH_8, TSAN_ATOMIC64_FETCH_NAND, BIT_NOT_EXPR),
FETCH_OP (ATOMIC_NAND_FETCH_16, TSAN_ATOMIC128_FETCH_NAND, BIT_NOT_EXPR),
ADD_ACQUIRE (SYNC_LOCK_TEST_AND_SET_1, TSAN_ATOMIC8_EXCHANGE),
ADD_ACQUIRE (SYNC_LOCK_TEST_AND_SET_2, TSAN_ATOMIC16_EXCHANGE),
ADD_ACQUIRE (SYNC_LOCK_TEST_AND_SET_4, TSAN_ATOMIC32_EXCHANGE),
ADD_ACQUIRE (SYNC_LOCK_TEST_AND_SET_8, TSAN_ATOMIC64_EXCHANGE),
ADD_ACQUIRE (SYNC_LOCK_TEST_AND_SET_16, TSAN_ATOMIC128_EXCHANGE),
ADD_SEQ_CST (SYNC_FETCH_AND_ADD_1, TSAN_ATOMIC8_FETCH_ADD),
ADD_SEQ_CST (SYNC_FETCH_AND_ADD_2, TSAN_ATOMIC16_FETCH_ADD),
ADD_SEQ_CST (SYNC_FETCH_AND_ADD_4, TSAN_ATOMIC32_FETCH_ADD),
ADD_SEQ_CST (SYNC_FETCH_AND_ADD_8, TSAN_ATOMIC64_FETCH_ADD),
ADD_SEQ_CST (SYNC_FETCH_AND_ADD_16, TSAN_ATOMIC128_FETCH_ADD),
ADD_SEQ_CST (SYNC_FETCH_AND_SUB_1, TSAN_ATOMIC8_FETCH_SUB),
ADD_SEQ_CST (SYNC_FETCH_AND_SUB_2, TSAN_ATOMIC16_FETCH_SUB),
ADD_SEQ_CST (SYNC_FETCH_AND_SUB_4, TSAN_ATOMIC32_FETCH_SUB),
ADD_SEQ_CST (SYNC_FETCH_AND_SUB_8, TSAN_ATOMIC64_FETCH_SUB),
ADD_SEQ_CST (SYNC_FETCH_AND_SUB_16, TSAN_ATOMIC128_FETCH_SUB),
ADD_SEQ_CST (SYNC_FETCH_AND_AND_1, TSAN_ATOMIC8_FETCH_AND),
ADD_SEQ_CST (SYNC_FETCH_AND_AND_2, TSAN_ATOMIC16_FETCH_AND),
ADD_SEQ_CST (SYNC_FETCH_AND_AND_4, TSAN_ATOMIC32_FETCH_AND),
ADD_SEQ_CST (SYNC_FETCH_AND_AND_8, TSAN_ATOMIC64_FETCH_AND),
ADD_SEQ_CST (SYNC_FETCH_AND_AND_16, TSAN_ATOMIC128_FETCH_AND),
ADD_SEQ_CST (SYNC_FETCH_AND_OR_1, TSAN_ATOMIC8_FETCH_OR),
ADD_SEQ_CST (SYNC_FETCH_AND_OR_2, TSAN_ATOMIC16_FETCH_OR),
ADD_SEQ_CST (SYNC_FETCH_AND_OR_4, TSAN_ATOMIC32_FETCH_OR),
ADD_SEQ_CST (SYNC_FETCH_AND_OR_8, TSAN_ATOMIC64_FETCH_OR),
ADD_SEQ_CST (SYNC_FETCH_AND_OR_16, TSAN_ATOMIC128_FETCH_OR),
ADD_SEQ_CST (SYNC_FETCH_AND_XOR_1, TSAN_ATOMIC8_FETCH_XOR),
ADD_SEQ_CST (SYNC_FETCH_AND_XOR_2, TSAN_ATOMIC16_FETCH_XOR),
ADD_SEQ_CST (SYNC_FETCH_AND_XOR_4, TSAN_ATOMIC32_FETCH_XOR),
ADD_SEQ_CST (SYNC_FETCH_AND_XOR_8, TSAN_ATOMIC64_FETCH_XOR),
ADD_SEQ_CST (SYNC_FETCH_AND_XOR_16, TSAN_ATOMIC128_FETCH_XOR),
ADD_SEQ_CST (SYNC_FETCH_AND_NAND_1, TSAN_ATOMIC8_FETCH_NAND),
ADD_SEQ_CST (SYNC_FETCH_AND_NAND_2, TSAN_ATOMIC16_FETCH_NAND),
ADD_SEQ_CST (SYNC_FETCH_AND_NAND_4, TSAN_ATOMIC32_FETCH_NAND),
ADD_SEQ_CST (SYNC_FETCH_AND_NAND_8, TSAN_ATOMIC64_FETCH_NAND),
ADD_SEQ_CST (SYNC_FETCH_AND_NAND_16, TSAN_ATOMIC128_FETCH_NAND),
ADD_SEQ_CST (SYNC_SYNCHRONIZE, TSAN_ATOMIC_THREAD_FENCE),
FETCH_OPS (SYNC_ADD_AND_FETCH_1, TSAN_ATOMIC8_FETCH_ADD, PLUS_EXPR),
FETCH_OPS (SYNC_ADD_AND_FETCH_2, TSAN_ATOMIC16_FETCH_ADD, PLUS_EXPR),
FETCH_OPS (SYNC_ADD_AND_FETCH_4, TSAN_ATOMIC32_FETCH_ADD, PLUS_EXPR),
FETCH_OPS (SYNC_ADD_AND_FETCH_8, TSAN_ATOMIC64_FETCH_ADD, PLUS_EXPR),
FETCH_OPS (SYNC_ADD_AND_FETCH_16, TSAN_ATOMIC128_FETCH_ADD, PLUS_EXPR),
FETCH_OPS (SYNC_SUB_AND_FETCH_1, TSAN_ATOMIC8_FETCH_SUB, MINUS_EXPR),
FETCH_OPS (SYNC_SUB_AND_FETCH_2, TSAN_ATOMIC16_FETCH_SUB, MINUS_EXPR),
FETCH_OPS (SYNC_SUB_AND_FETCH_4, TSAN_ATOMIC32_FETCH_SUB, MINUS_EXPR),
FETCH_OPS (SYNC_SUB_AND_FETCH_8, TSAN_ATOMIC64_FETCH_SUB, MINUS_EXPR),
FETCH_OPS (SYNC_SUB_AND_FETCH_16, TSAN_ATOMIC128_FETCH_SUB, MINUS_EXPR),
FETCH_OPS (SYNC_AND_AND_FETCH_1, TSAN_ATOMIC8_FETCH_AND, BIT_AND_EXPR),
FETCH_OPS (SYNC_AND_AND_FETCH_2, TSAN_ATOMIC16_FETCH_AND, BIT_AND_EXPR),
FETCH_OPS (SYNC_AND_AND_FETCH_4, TSAN_ATOMIC32_FETCH_AND, BIT_AND_EXPR),
FETCH_OPS (SYNC_AND_AND_FETCH_8, TSAN_ATOMIC64_FETCH_AND, BIT_AND_EXPR),
FETCH_OPS (SYNC_AND_AND_FETCH_16, TSAN_ATOMIC128_FETCH_AND, BIT_AND_EXPR),
FETCH_OPS (SYNC_OR_AND_FETCH_1, TSAN_ATOMIC8_FETCH_OR, BIT_IOR_EXPR),
FETCH_OPS (SYNC_OR_AND_FETCH_2, TSAN_ATOMIC16_FETCH_OR, BIT_IOR_EXPR),
FETCH_OPS (SYNC_OR_AND_FETCH_4, TSAN_ATOMIC32_FETCH_OR, BIT_IOR_EXPR),
FETCH_OPS (SYNC_OR_AND_FETCH_8, TSAN_ATOMIC64_FETCH_OR, BIT_IOR_EXPR),
FETCH_OPS (SYNC_OR_AND_FETCH_16, TSAN_ATOMIC128_FETCH_OR, BIT_IOR_EXPR),
FETCH_OPS (SYNC_XOR_AND_FETCH_1, TSAN_ATOMIC8_FETCH_XOR, BIT_XOR_EXPR),
FETCH_OPS (SYNC_XOR_AND_FETCH_2, TSAN_ATOMIC16_FETCH_XOR, BIT_XOR_EXPR),
FETCH_OPS (SYNC_XOR_AND_FETCH_4, TSAN_ATOMIC32_FETCH_XOR, BIT_XOR_EXPR),
FETCH_OPS (SYNC_XOR_AND_FETCH_8, TSAN_ATOMIC64_FETCH_XOR, BIT_XOR_EXPR),
FETCH_OPS (SYNC_XOR_AND_FETCH_16, TSAN_ATOMIC128_FETCH_XOR, BIT_XOR_EXPR),
FETCH_OPS (SYNC_NAND_AND_FETCH_1, TSAN_ATOMIC8_FETCH_NAND, BIT_NOT_EXPR),
FETCH_OPS (SYNC_NAND_AND_FETCH_2, TSAN_ATOMIC16_FETCH_NAND, BIT_NOT_EXPR),
FETCH_OPS (SYNC_NAND_AND_FETCH_4, TSAN_ATOMIC32_FETCH_NAND, BIT_NOT_EXPR),
FETCH_OPS (SYNC_NAND_AND_FETCH_8, TSAN_ATOMIC64_FETCH_NAND, BIT_NOT_EXPR),
FETCH_OPS (SYNC_NAND_AND_FETCH_16, TSAN_ATOMIC128_FETCH_NAND, BIT_NOT_EXPR),
WEAK_CAS (ATOMIC_COMPARE_EXCHANGE_1, TSAN_ATOMIC8_COMPARE_EXCHANGE_WEAK),
WEAK_CAS (ATOMIC_COMPARE_EXCHANGE_2, TSAN_ATOMIC16_COMPARE_EXCHANGE_WEAK),
WEAK_CAS (ATOMIC_COMPARE_EXCHANGE_4, TSAN_ATOMIC32_COMPARE_EXCHANGE_WEAK),
WEAK_CAS (ATOMIC_COMPARE_EXCHANGE_8, TSAN_ATOMIC64_COMPARE_EXCHANGE_WEAK),
WEAK_CAS (ATOMIC_COMPARE_EXCHANGE_16, TSAN_ATOMIC128_COMPARE_EXCHANGE_WEAK),
STRONG_CAS (ATOMIC_COMPARE_EXCHANGE_1, TSAN_ATOMIC8_COMPARE_EXCHANGE_STRONG),
STRONG_CAS (ATOMIC_COMPARE_EXCHANGE_2,
TSAN_ATOMIC16_COMPARE_EXCHANGE_STRONG),
STRONG_CAS (ATOMIC_COMPARE_EXCHANGE_4,
TSAN_ATOMIC32_COMPARE_EXCHANGE_STRONG),
STRONG_CAS (ATOMIC_COMPARE_EXCHANGE_8,
TSAN_ATOMIC64_COMPARE_EXCHANGE_STRONG),
STRONG_CAS (ATOMIC_COMPARE_EXCHANGE_16,
TSAN_ATOMIC128_COMPARE_EXCHANGE_STRONG),
BOOL_CAS (SYNC_BOOL_COMPARE_AND_SWAP_1,
TSAN_ATOMIC8_COMPARE_EXCHANGE_STRONG),
BOOL_CAS (SYNC_BOOL_COMPARE_AND_SWAP_2,
TSAN_ATOMIC16_COMPARE_EXCHANGE_STRONG),
BOOL_CAS (SYNC_BOOL_COMPARE_AND_SWAP_4,
TSAN_ATOMIC32_COMPARE_EXCHANGE_STRONG),
BOOL_CAS (SYNC_BOOL_COMPARE_AND_SWAP_8,
TSAN_ATOMIC64_COMPARE_EXCHANGE_STRONG),
BOOL_CAS (SYNC_BOOL_COMPARE_AND_SWAP_16,
TSAN_ATOMIC128_COMPARE_EXCHANGE_STRONG),
VAL_CAS (SYNC_VAL_COMPARE_AND_SWAP_1, TSAN_ATOMIC8_COMPARE_EXCHANGE_STRONG),
VAL_CAS (SYNC_VAL_COMPARE_AND_SWAP_2, TSAN_ATOMIC16_COMPARE_EXCHANGE_STRONG),
VAL_CAS (SYNC_VAL_COMPARE_AND_SWAP_4, TSAN_ATOMIC32_COMPARE_EXCHANGE_STRONG),
VAL_CAS (SYNC_VAL_COMPARE_AND_SWAP_8, TSAN_ATOMIC64_COMPARE_EXCHANGE_STRONG),
VAL_CAS (SYNC_VAL_COMPARE_AND_SWAP_16,
TSAN_ATOMIC128_COMPARE_EXCHANGE_STRONG),
LOCK_RELEASE (SYNC_LOCK_RELEASE_1, TSAN_ATOMIC8_STORE),
LOCK_RELEASE (SYNC_LOCK_RELEASE_2, TSAN_ATOMIC16_STORE),
LOCK_RELEASE (SYNC_LOCK_RELEASE_4, TSAN_ATOMIC32_STORE),
LOCK_RELEASE (SYNC_LOCK_RELEASE_8, TSAN_ATOMIC64_STORE),
LOCK_RELEASE (SYNC_LOCK_RELEASE_16, TSAN_ATOMIC128_STORE)
};
/* Instrument an atomic builtin. */
static void
instrument_builtin_call (gimple_stmt_iterator *gsi)
{
gimple stmt = gsi_stmt (*gsi), g;
tree callee = gimple_call_fndecl (stmt), last_arg, args[6], t, lhs;
enum built_in_function fcode = DECL_FUNCTION_CODE (callee);
unsigned int i, num = gimple_call_num_args (stmt), j;
for (j = 0; j < 6 && j < num; j++)
args[j] = gimple_call_arg (stmt, j);
for (i = 0; i < ARRAY_SIZE (tsan_atomic_table); i++)
if (fcode != tsan_atomic_table[i].fcode)
continue;
else
{
tree decl = builtin_decl_implicit (tsan_atomic_table[i].tsan_fcode);
if (decl == NULL_TREE)
return;
switch (tsan_atomic_table[i].action)
{
case check_last:
case fetch_op:
last_arg = gimple_call_arg (stmt, num - 1);
if (!host_integerp (last_arg, 1)
|| (unsigned HOST_WIDE_INT) tree_low_cst (last_arg, 1)
> MEMMODEL_SEQ_CST)
return;
gimple_call_set_fndecl (stmt, decl);
update_stmt (stmt);
if (tsan_atomic_table[i].action == fetch_op)
{
args[1] = gimple_call_arg (stmt, 1);
goto adjust_result;
}
return;
case add_seq_cst:
case add_acquire:
case fetch_op_seq_cst:
gcc_assert (num <= 2);
for (j = 0; j < num; j++)
args[j] = gimple_call_arg (stmt, j);
for (; j < 2; j++)
args[j] = NULL_TREE;
args[num] = build_int_cst (NULL_TREE,
tsan_atomic_table[i].action
!= add_acquire
? MEMMODEL_SEQ_CST
: MEMMODEL_ACQUIRE);
update_gimple_call (gsi, decl, num + 1, args[0], args[1], args[2]);
stmt = gsi_stmt (*gsi);
if (tsan_atomic_table[i].action == fetch_op_seq_cst)
{
adjust_result:
lhs = gimple_call_lhs (stmt);
if (lhs == NULL_TREE)
return;
if (!useless_type_conversion_p (TREE_TYPE (lhs),
TREE_TYPE (args[1])))
{
tree var = make_ssa_name (TREE_TYPE (lhs), NULL);
g = gimple_build_assign_with_ops (NOP_EXPR, var,
args[1], NULL_TREE);
gsi_insert_after (gsi, g, GSI_NEW_STMT);
args[1] = var;
}
gimple_call_set_lhs (stmt,
make_ssa_name (TREE_TYPE (lhs), NULL));
/* BIT_NOT_EXPR stands for NAND. */
if (tsan_atomic_table[i].code == BIT_NOT_EXPR)
{
tree var = make_ssa_name (TREE_TYPE (lhs), NULL);
g = gimple_build_assign_with_ops (BIT_AND_EXPR, var,
gimple_call_lhs (stmt),
args[1]);
gsi_insert_after (gsi, g, GSI_NEW_STMT);
g = gimple_build_assign_with_ops (BIT_NOT_EXPR, lhs, var,
NULL_TREE);
}
else
g = gimple_build_assign_with_ops (tsan_atomic_table[i].code,
lhs,
gimple_call_lhs (stmt),
args[1]);
update_stmt (stmt);
gsi_insert_after (gsi, g, GSI_NEW_STMT);
}
return;
case weak_cas:
if (!integer_nonzerop (gimple_call_arg (stmt, 3)))
continue;
/* FALLTHRU */
case strong_cas:
gcc_assert (num == 6);
for (j = 0; j < 6; j++)
args[j] = gimple_call_arg (stmt, j);
if (!host_integerp (args[4], 1)
|| (unsigned HOST_WIDE_INT) tree_low_cst (args[4], 1)
> MEMMODEL_SEQ_CST)
return;
if (!host_integerp (args[5], 1)
|| (unsigned HOST_WIDE_INT) tree_low_cst (args[5], 1)
> MEMMODEL_SEQ_CST)
return;
update_gimple_call (gsi, decl, 5, args[0], args[1], args[2],
args[4], args[5]);
return;
case bool_cas:
case val_cas:
gcc_assert (num == 3);
for (j = 0; j < 3; j++)
args[j] = gimple_call_arg (stmt, j);
t = TYPE_ARG_TYPES (TREE_TYPE (decl));
t = TREE_VALUE (TREE_CHAIN (TREE_CHAIN (t)));
t = create_tmp_var (t, NULL);
mark_addressable (t);
if (!useless_type_conversion_p (TREE_TYPE (t),
TREE_TYPE (args[1])))
{
g = gimple_build_assign_with_ops (NOP_EXPR,
make_ssa_name (TREE_TYPE (t),
NULL),
args[1], NULL_TREE);
gsi_insert_before (gsi, g, GSI_SAME_STMT);
args[1] = gimple_assign_lhs (g);
}
g = gimple_build_assign (t, args[1]);
gsi_insert_before (gsi, g, GSI_SAME_STMT);
lhs = gimple_call_lhs (stmt);
update_gimple_call (gsi, decl, 5, args[0],
build_fold_addr_expr (t), args[2],
build_int_cst (NULL_TREE,
MEMMODEL_SEQ_CST),
build_int_cst (NULL_TREE,
MEMMODEL_SEQ_CST));
if (tsan_atomic_table[i].action == val_cas && lhs)
{
tree cond;
stmt = gsi_stmt (*gsi);
g = gimple_build_assign (make_ssa_name (TREE_TYPE (t), NULL),
t);
gsi_insert_after (gsi, g, GSI_NEW_STMT);
t = make_ssa_name (TREE_TYPE (TREE_TYPE (decl)), stmt);
cond = build2 (NE_EXPR, boolean_type_node, t,
build_int_cst (TREE_TYPE (t), 0));
g = gimple_build_assign_with_ops (COND_EXPR, lhs, cond,
args[1],
gimple_assign_lhs (g));
gimple_call_set_lhs (stmt, t);
update_stmt (stmt);
gsi_insert_after (gsi, g, GSI_NEW_STMT);
}
return;
case lock_release:
gcc_assert (num == 1);
t = TYPE_ARG_TYPES (TREE_TYPE (decl));
t = TREE_VALUE (TREE_CHAIN (t));
update_gimple_call (gsi, decl, 3, gimple_call_arg (stmt, 0),
build_int_cst (t, 0),
build_int_cst (NULL_TREE,
MEMMODEL_RELEASE));
return;
default:
continue;
}
}
}
/* Instruments the gimple pointed to by GSI. Return
true if func entry/exit should be instrumented. */
static bool
instrument_gimple (gimple_stmt_iterator gsi)
instrument_gimple (gimple_stmt_iterator *gsi)
{
gimple stmt;
tree rhs, lhs;
bool instrumented = false;
stmt = gsi_stmt (gsi);
stmt = gsi_stmt (*gsi);
if (is_gimple_call (stmt)
&& (gimple_call_fndecl (stmt)
!= builtin_decl_implicit (BUILT_IN_TSAN_INIT)))
return true;
{
if (is_gimple_builtin_call (stmt))
instrument_builtin_call (gsi);
return true;
}
else if (is_gimple_assign (stmt)
&& !gimple_clobber_p (stmt))
{
if (gimple_store_p (stmt))
{
lhs = gimple_assign_lhs (stmt);
instrumented = instrument_expr (gsi, lhs, true);
instrumented = instrument_expr (*gsi, lhs, true);
}
if (gimple_assign_load_p (stmt))
{
rhs = gimple_assign_rhs1 (stmt);
instrumented = instrument_expr (gsi, rhs, false);
instrumented = instrument_expr (*gsi, rhs, false);
}
}
return instrumented;
@ -224,7 +627,7 @@ instrument_memory_accesses (void)
FOR_EACH_BB (bb)
for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
fentry_exit_instrument |= instrument_gimple (gsi);
fentry_exit_instrument |= instrument_gimple (&gsi);
return fentry_exit_instrument;
}