sanitizer.def: Add Address Sanitizer builtins.
* sanitizer.def: Add Address Sanitizer builtins.
Rename BUILT_IN_TSAN_READ_* to BUILT_IN_TSAN_READ* and
BUILT_IN_TSAN_WRITE_* to BUILT_IN_TSAN_WRITE*.
* Makefile.in (asan.o): Depend on langhooks.h.
(tsan.o): Depend on asan.h.
* asan.h (initialize_sanitizer_builtins): New prototype.
* asan.c: Include langhooks.h.
(report_error_func): Use builtin_decl_implicit of corresponding
BUILT_IN_ASAN_REPORT_{LOAD,STORE}*.
(asan_init_func): Removed.
(initialize_sanitizer_builtins): New function.
(asan_finish_file): Call it. Use builtin_decl_implicit
on BUILT_IN_ASAN_{INIT,{,UN}REGISTER_GLOBALS}.
(asan_instrument): Call initialize_sanitizer_builtins.
* builtins.def (DEF_SANITIZER_BUILTIN): Change condition to
(flag_asan || flag_tsan).
* tsan.c: Include asan.h and tsan.h.
(get_memory_access_decl): Rename BUILT_IN_TSAN_{READ,WRITE}_*
to BUILT_IN_TSAN_{READ,WRITE}*.
(tsan_pass): Call initialize_sanitizer_builtins.
(tsan_gate, tsan_gate_O0): Don't check if
builtin_decl_implicit_p (BUILT_IN_TSAN_INIT) is true.
(tsan_finish_file): Call initialize_sanitizer_builtins.
* builtin-types.def (BT_FN_VOID_PTR_PTRMODE): New fn type.
From-SVN: r194103
This commit is contained in:
Jakub Jelinek
Jakub Jelinek
parent
f41e5bd19d
commit
0e668eaf77
|
|
@ -1,3 +1,30 @@
|
|||
2012-12-03 Jakub Jelinek <jakub@redhat.com>
|
||||
|
||||
* sanitizer.def: Add Address Sanitizer builtins.
|
||||
Rename BUILT_IN_TSAN_READ_* to BUILT_IN_TSAN_READ* and
|
||||
BUILT_IN_TSAN_WRITE_* to BUILT_IN_TSAN_WRITE*.
|
||||
* Makefile.in (asan.o): Depend on langhooks.h.
|
||||
(tsan.o): Depend on asan.h.
|
||||
* asan.h (initialize_sanitizer_builtins): New prototype.
|
||||
* asan.c: Include langhooks.h.
|
||||
(report_error_func): Use builtin_decl_implicit of corresponding
|
||||
BUILT_IN_ASAN_REPORT_{LOAD,STORE}*.
|
||||
(asan_init_func): Removed.
|
||||
(initialize_sanitizer_builtins): New function.
|
||||
(asan_finish_file): Call it. Use builtin_decl_implicit
|
||||
on BUILT_IN_ASAN_{INIT,{,UN}REGISTER_GLOBALS}.
|
||||
(asan_instrument): Call initialize_sanitizer_builtins.
|
||||
* builtins.def (DEF_SANITIZER_BUILTIN): Change condition to
|
||||
(flag_asan || flag_tsan).
|
||||
* tsan.c: Include asan.h and tsan.h.
|
||||
(get_memory_access_decl): Rename BUILT_IN_TSAN_{READ,WRITE}_*
|
||||
to BUILT_IN_TSAN_{READ,WRITE}*.
|
||||
(tsan_pass): Call initialize_sanitizer_builtins.
|
||||
(tsan_gate, tsan_gate_O0): Don't check if
|
||||
builtin_decl_implicit_p (BUILT_IN_TSAN_INIT) is true.
|
||||
(tsan_finish_file): Call initialize_sanitizer_builtins.
|
||||
* builtin-types.def (BT_FN_VOID_PTR_PTRMODE): New fn type.
|
||||
|
||||
2012-12-03 Aldy Hernandez <aldyh@redhat.com>
|
||||
|
||||
PR middle-end/55401
|
||||
|
|
|
|||
|
|
@ -2228,13 +2228,13 @@ stor-layout.o : stor-layout.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) \
|
|||
asan.o : asan.c asan.h $(CONFIG_H) $(SYSTEM_H) $(GIMPLE_H) \
|
||||
output.h coretypes.h $(GIMPLE_PRETTY_PRINT_H) \
|
||||
tree-iterator.h $(TREE_FLOW_H) $(TREE_PASS_H) \
|
||||
$(TARGET_H) $(EXPR_H) $(OPTABS_H) $(TM_P_H)
|
||||
$(TARGET_H) $(EXPR_H) $(OPTABS_H) $(TM_P_H) langhooks.h
|
||||
tsan.o : $(CONFIG_H) $(SYSTEM_H) $(TREE_H) $(TREE_INLINE_H) \
|
||||
$(GIMPLE_H) $(DIAGNOSTIC_H) langhooks.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
|
||||
intl.h cfghooks.h output.h options.h c-family/c-common.h tsan.h asan.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) \
|
||||
|
|
|
|||
98
gcc/asan.c
98
gcc/asan.c
|
|
@ -33,6 +33,7 @@ along with GCC; see the file COPYING3. If not see
|
|||
#include "optabs.h"
|
||||
#include "output.h"
|
||||
#include "tm_p.h"
|
||||
#include "langhooks.h"
|
||||
|
||||
/* AddressSanitizer finds out-of-bounds and use-after-free bugs
|
||||
with <2x slowdown on average.
|
||||
|
|
@ -485,38 +486,16 @@ asan_protect_global (tree decl)
|
|||
static tree
|
||||
report_error_func (bool is_store, int size_in_bytes)
|
||||
{
|
||||
tree fn_type;
|
||||
tree def;
|
||||
char name[100];
|
||||
|
||||
sprintf (name, "__asan_report_%s%d",
|
||||
is_store ? "store" : "load", size_in_bytes);
|
||||
fn_type = build_function_type_list (void_type_node, ptr_type_node, NULL_TREE);
|
||||
def = build_fn_decl (name, fn_type);
|
||||
TREE_NOTHROW (def) = 1;
|
||||
DECL_IGNORED_P (def) = 1;
|
||||
TREE_THIS_VOLATILE (def) = 1; /* Attribute noreturn. Surprise! */
|
||||
DECL_ATTRIBUTES (def) = tree_cons (get_identifier ("leaf"),
|
||||
NULL, DECL_ATTRIBUTES (def));
|
||||
return def;
|
||||
static enum built_in_function report[2][5]
|
||||
= { { BUILT_IN_ASAN_REPORT_LOAD1, BUILT_IN_ASAN_REPORT_LOAD2,
|
||||
BUILT_IN_ASAN_REPORT_LOAD4, BUILT_IN_ASAN_REPORT_LOAD8,
|
||||
BUILT_IN_ASAN_REPORT_LOAD16 },
|
||||
{ BUILT_IN_ASAN_REPORT_STORE1, BUILT_IN_ASAN_REPORT_STORE2,
|
||||
BUILT_IN_ASAN_REPORT_STORE4, BUILT_IN_ASAN_REPORT_STORE8,
|
||||
BUILT_IN_ASAN_REPORT_STORE16 } };
|
||||
return builtin_decl_implicit (report[is_store][exact_log2 (size_in_bytes)]);
|
||||
}
|
||||
|
||||
/* Construct a function tree for __asan_init(). */
|
||||
|
||||
static tree
|
||||
asan_init_func (void)
|
||||
{
|
||||
tree fn_type;
|
||||
tree def;
|
||||
|
||||
fn_type = build_function_type_list (void_type_node, NULL_TREE);
|
||||
def = build_fn_decl ("__asan_init", fn_type);
|
||||
TREE_NOTHROW (def) = 1;
|
||||
DECL_IGNORED_P (def) = 1;
|
||||
return def;
|
||||
}
|
||||
|
||||
|
||||
#define PROB_VERY_UNLIKELY (REG_BR_PROB_BASE / 2000 - 1)
|
||||
#define PROB_ALWAYS (REG_BR_PROB_BASE)
|
||||
|
||||
|
|
@ -1510,6 +1489,38 @@ asan_add_global (tree decl, tree type, vec<constructor_elt, va_gc> *v)
|
|||
CONSTRUCTOR_APPEND_ELT (v, NULL_TREE, init);
|
||||
}
|
||||
|
||||
/* Initialize sanitizer.def builtins if the FE hasn't initialized them. */
|
||||
void
|
||||
initialize_sanitizer_builtins (void)
|
||||
{
|
||||
tree decl;
|
||||
|
||||
if (builtin_decl_implicit_p (BUILT_IN_ASAN_INIT))
|
||||
return;
|
||||
|
||||
tree BT_FN_VOID = build_function_type_list (void_type_node, NULL_TREE);
|
||||
tree BT_FN_VOID_PTR
|
||||
= build_function_type_list (void_type_node, ptr_type_node, NULL_TREE);
|
||||
tree BT_FN_VOID_PTR_PTRMODE
|
||||
= build_function_type_list (void_type_node, ptr_type_node,
|
||||
build_nonstandard_integer_type (POINTER_SIZE,
|
||||
1), NULL_TREE);
|
||||
#undef ATTR_NOTHROW_LEAF_LIST
|
||||
#define ATTR_NOTHROW_LEAF_LIST ECF_NOTHROW | ECF_LEAF
|
||||
#undef ATTR_NORETURN_NOTHROW_LEAF_LIST
|
||||
#define ATTR_NORETURN_NOTHROW_LEAF_LIST ECF_NORETURN | ATTR_NOTHROW_LEAF_LIST
|
||||
#undef DEF_SANITIZER_BUILTIN
|
||||
#define DEF_SANITIZER_BUILTIN(ENUM, NAME, TYPE, ATTRS) \
|
||||
decl = add_builtin_function ("__builtin_" NAME, TYPE, ENUM, \
|
||||
BUILT_IN_NORMAL, NAME, NULL_TREE); \
|
||||
set_call_expr_flags (decl, ATTRS); \
|
||||
set_builtin_decl (ENUM, decl, true);
|
||||
|
||||
#include "sanitizer.def"
|
||||
|
||||
#undef DEF_SANITIZER_BUILTIN
|
||||
}
|
||||
|
||||
/* Needs to be GTY(()), because cgraph_build_static_cdtor may
|
||||
invoke ggc_collect. */
|
||||
static GTY(()) tree asan_ctor_statements;
|
||||
|
|
@ -1525,14 +1536,16 @@ asan_finish_file (void)
|
|||
struct varpool_node *vnode;
|
||||
unsigned HOST_WIDE_INT gcount = 0;
|
||||
|
||||
append_to_statement_list (build_call_expr (asan_init_func (), 0),
|
||||
&asan_ctor_statements);
|
||||
initialize_sanitizer_builtins ();
|
||||
|
||||
tree fn = builtin_decl_implicit (BUILT_IN_ASAN_INIT);
|
||||
append_to_statement_list (build_call_expr (fn, 0), &asan_ctor_statements);
|
||||
FOR_EACH_DEFINED_VARIABLE (vnode)
|
||||
if (asan_protect_global (vnode->symbol.decl))
|
||||
++gcount;
|
||||
if (gcount)
|
||||
{
|
||||
tree type = asan_global_struct (), var, ctor, decl;
|
||||
tree type = asan_global_struct (), var, ctor;
|
||||
tree uptr = build_nonstandard_integer_type (POINTER_SIZE, 1);
|
||||
tree dtor_statements = NULL_TREE;
|
||||
vec<constructor_elt, va_gc> *v;
|
||||
|
|
@ -1556,20 +1569,14 @@ asan_finish_file (void)
|
|||
DECL_INITIAL (var) = ctor;
|
||||
varpool_assemble_decl (varpool_node_for_decl (var));
|
||||
|
||||
type = build_function_type_list (void_type_node, ptr_type_node,
|
||||
uptr, NULL_TREE);
|
||||
decl = build_fn_decl ("__asan_register_globals", type);
|
||||
TREE_NOTHROW (decl) = 1;
|
||||
DECL_IGNORED_P (decl) = 1;
|
||||
append_to_statement_list (build_call_expr (decl, 2,
|
||||
fn = builtin_decl_implicit (BUILT_IN_ASAN_REGISTER_GLOBALS);
|
||||
append_to_statement_list (build_call_expr (fn, 2,
|
||||
build_fold_addr_expr (var),
|
||||
build_int_cst (uptr, gcount)),
|
||||
&asan_ctor_statements);
|
||||
|
||||
decl = build_fn_decl ("__asan_unregister_globals", type);
|
||||
TREE_NOTHROW (decl) = 1;
|
||||
DECL_IGNORED_P (decl) = 1;
|
||||
append_to_statement_list (build_call_expr (decl, 2,
|
||||
fn = builtin_decl_implicit (BUILT_IN_ASAN_UNREGISTER_GLOBALS);
|
||||
append_to_statement_list (build_call_expr (fn, 2,
|
||||
build_fold_addr_expr (var),
|
||||
build_int_cst (uptr, gcount)),
|
||||
&dtor_statements);
|
||||
|
|
@ -1600,7 +1607,10 @@ static unsigned int
|
|||
asan_instrument (void)
|
||||
{
|
||||
if (shadow_ptr_types[0] == NULL_TREE)
|
||||
asan_init_shadow_ptr_types ();
|
||||
{
|
||||
asan_init_shadow_ptr_types ();
|
||||
initialize_sanitizer_builtins ();
|
||||
}
|
||||
transform_statements ();
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -24,6 +24,7 @@ along with GCC; see the file COPYING3. If not see
|
|||
extern void asan_finish_file (void);
|
||||
extern rtx asan_emit_stack_protection (rtx, HOST_WIDE_INT *, tree *, int);
|
||||
extern bool asan_protect_global (tree);
|
||||
extern void initialize_sanitizer_builtins (void);
|
||||
|
||||
/* Alias set for accessing the shadow memory. */
|
||||
extern alias_set_type asan_shadow_set;
|
||||
|
|
|
|||
|
|
@ -253,6 +253,8 @@ DEF_FUNCTION_TYPE_2 (BT_FN_INT_INT_FILEPTR,
|
|||
BT_INT, BT_INT, BT_FILEPTR)
|
||||
DEF_FUNCTION_TYPE_2 (BT_FN_VOID_PTRMODE_PTR,
|
||||
BT_VOID, BT_PTRMODE, BT_PTR)
|
||||
DEF_FUNCTION_TYPE_2 (BT_FN_VOID_PTR_PTRMODE,
|
||||
BT_VOID, BT_PTR, BT_PTRMODE)
|
||||
DEF_FUNCTION_TYPE_2 (BT_FN_VOID_VALIST_REF_VALIST_ARG,
|
||||
BT_VOID, BT_VALIST_REF, BT_VALIST_ARG)
|
||||
DEF_FUNCTION_TYPE_2 (BT_FN_LONG_LONG_LONG,
|
||||
|
|
|
|||
|
|
@ -156,7 +156,7 @@ along with GCC; see the file COPYING3. If not see
|
|||
#define DEF_SANITIZER_BUILTIN(ENUM, NAME, TYPE, ATTRS) \
|
||||
DEF_BUILTIN (ENUM, "__builtin_" NAME, BUILT_IN_NORMAL, TYPE, TYPE, \
|
||||
true, true, true, ATTRS, true, \
|
||||
flag_tsan)
|
||||
(flag_asan || flag_tsan))
|
||||
|
||||
/* Define an attribute list for math functions that are normally
|
||||
"impure" because some of them may write into global memory for
|
||||
|
|
|
|||
|
|
@ -1,3 +1,62 @@
|
|||
/* This file contains the definitions and documentation for the
|
||||
Address Sanitizer and Thread Sanitizer builtins used in the GNU compiler.
|
||||
Copyright (C) 2012 Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GCC.
|
||||
|
||||
GCC is free software; you can redistribute it and/or modify it under
|
||||
the terms of the GNU General Public License as published by the Free
|
||||
Software Foundation; either version 3, or (at your option) any later
|
||||
version.
|
||||
|
||||
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||||
for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with GCC; see the file COPYING3. If not see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
/* Before including this file, you should define a macro:
|
||||
|
||||
DEF_SANITIZER_BUILTIN (ENUM, NAME, TYPE, ATTRS)
|
||||
|
||||
See builtins.def for details.
|
||||
The builtins are created by the C-family of FEs in c-family/c-common.c,
|
||||
for other FEs by asan.c. */
|
||||
|
||||
/* Address Sanitizer */
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_INIT, "__asan_init",
|
||||
BT_FN_VOID, ATTR_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_LOAD1, "__asan_report_load1",
|
||||
BT_FN_VOID_PTR, ATTR_NORETURN_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_LOAD2, "__asan_report_load2",
|
||||
BT_FN_VOID_PTR, ATTR_NORETURN_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_LOAD4, "__asan_report_load4",
|
||||
BT_FN_VOID_PTR, ATTR_NORETURN_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_LOAD8, "__asan_report_load8",
|
||||
BT_FN_VOID_PTR, ATTR_NORETURN_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_LOAD16, "__asan_report_load16",
|
||||
BT_FN_VOID_PTR, ATTR_NORETURN_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_STORE1, "__asan_report_store1",
|
||||
BT_FN_VOID_PTR, ATTR_NORETURN_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_STORE2, "__asan_report_store2",
|
||||
BT_FN_VOID_PTR, ATTR_NORETURN_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_STORE4, "__asan_report_store4",
|
||||
BT_FN_VOID_PTR, ATTR_NORETURN_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_STORE8, "__asan_report_store8",
|
||||
BT_FN_VOID_PTR, ATTR_NORETURN_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REPORT_STORE16, "__asan_report_store16",
|
||||
BT_FN_VOID_PTR, ATTR_NORETURN_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_REGISTER_GLOBALS,
|
||||
"__asan_register_globals",
|
||||
BT_FN_VOID_PTR_PTRMODE, ATTR_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_ASAN_UNREGISTER_GLOBALS,
|
||||
"__asan_unregister_globals",
|
||||
BT_FN_VOID_PTR_PTRMODE, ATTR_NOTHROW_LEAF_LIST)
|
||||
|
||||
/* Thread Sanitizer */
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_INIT, "__tsan_init",
|
||||
BT_FN_VOID, ATTR_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_FUNC_ENTRY, "__tsan_func_entry",
|
||||
|
|
@ -6,23 +65,23 @@ DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_FUNC_EXIT, "__tsan_func_exit",
|
|||
BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_VPTR_UPDATE, "__tsan_vptr_update",
|
||||
BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_READ_1, "__tsan_read1",
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_READ1, "__tsan_read1",
|
||||
BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_READ_2, "__tsan_read2",
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_READ2, "__tsan_read2",
|
||||
BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_READ_4, "__tsan_read4",
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_READ4, "__tsan_read4",
|
||||
BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_READ_8, "__tsan_read8",
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_READ8, "__tsan_read8",
|
||||
BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_READ_16, "__tsan_read16",
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_READ16, "__tsan_read16",
|
||||
BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE_1, "__tsan_write1",
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE1, "__tsan_write1",
|
||||
BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE_2, "__tsan_write2",
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE2, "__tsan_write2",
|
||||
BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE_4, "__tsan_write4",
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE4, "__tsan_write4",
|
||||
BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE_8, "__tsan_write8",
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE8, "__tsan_write8",
|
||||
BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE_16, "__tsan_write16",
|
||||
DEF_SANITIZER_BUILTIN(BUILT_IN_TSAN_WRITE16, "__tsan_write16",
|
||||
BT_FN_VOID_PTR, ATTR_NOTHROW_LEAF_LIST)
|
||||
|
|
|
|||
36
gcc/tsan.c
36
gcc/tsan.c
|
|
@ -37,6 +37,8 @@ along with GCC; see the file COPYING3. If not see
|
|||
#include "target.h"
|
||||
#include "cgraph.h"
|
||||
#include "diagnostic.h"
|
||||
#include "tsan.h"
|
||||
#include "asan.h"
|
||||
|
||||
/* Number of instrumented memory accesses in the current function. */
|
||||
|
||||
|
|
@ -49,20 +51,20 @@ get_memory_access_decl (bool is_write, unsigned size)
|
|||
enum built_in_function fcode;
|
||||
|
||||
if (size <= 1)
|
||||
fcode = is_write ? BUILT_IN_TSAN_WRITE_1
|
||||
: BUILT_IN_TSAN_READ_1;
|
||||
fcode = is_write ? BUILT_IN_TSAN_WRITE1
|
||||
: BUILT_IN_TSAN_READ1;
|
||||
else if (size <= 3)
|
||||
fcode = is_write ? BUILT_IN_TSAN_WRITE_2
|
||||
: BUILT_IN_TSAN_READ_2;
|
||||
fcode = is_write ? BUILT_IN_TSAN_WRITE2
|
||||
: BUILT_IN_TSAN_READ2;
|
||||
else if (size <= 7)
|
||||
fcode = is_write ? BUILT_IN_TSAN_WRITE_4
|
||||
: BUILT_IN_TSAN_READ_4;
|
||||
fcode = is_write ? BUILT_IN_TSAN_WRITE4
|
||||
: BUILT_IN_TSAN_READ4;
|
||||
else if (size <= 15)
|
||||
fcode = is_write ? BUILT_IN_TSAN_WRITE_8
|
||||
: BUILT_IN_TSAN_READ_8;
|
||||
fcode = is_write ? BUILT_IN_TSAN_WRITE8
|
||||
: BUILT_IN_TSAN_READ8;
|
||||
else
|
||||
fcode = is_write ? BUILT_IN_TSAN_WRITE_16
|
||||
: BUILT_IN_TSAN_READ_16;
|
||||
fcode = is_write ? BUILT_IN_TSAN_WRITE16
|
||||
: BUILT_IN_TSAN_READ16;
|
||||
|
||||
return builtin_decl_implicit (fcode);
|
||||
}
|
||||
|
|
@ -285,6 +287,7 @@ instrument_func_exit (void)
|
|||
static unsigned
|
||||
tsan_pass (void)
|
||||
{
|
||||
initialize_sanitizer_builtins ();
|
||||
if (instrument_memory_accesses ())
|
||||
{
|
||||
instrument_func_entry ();
|
||||
|
|
@ -298,8 +301,7 @@ tsan_pass (void)
|
|||
static bool
|
||||
tsan_gate (void)
|
||||
{
|
||||
return flag_tsan != 0
|
||||
&& builtin_decl_implicit_p (BUILT_IN_TSAN_INIT);
|
||||
return flag_tsan != 0;
|
||||
}
|
||||
|
||||
/* Inserts __tsan_init () into the list of CTORs. */
|
||||
|
|
@ -307,11 +309,10 @@ tsan_gate (void)
|
|||
void
|
||||
tsan_finish_file (void)
|
||||
{
|
||||
tree ctor_statements;
|
||||
tree init_decl;
|
||||
tree ctor_statements = NULL_TREE;
|
||||
|
||||
ctor_statements = NULL_TREE;
|
||||
init_decl = builtin_decl_implicit (BUILT_IN_TSAN_INIT);
|
||||
initialize_sanitizer_builtins ();
|
||||
tree init_decl = builtin_decl_implicit (BUILT_IN_TSAN_INIT);
|
||||
append_to_statement_list (build_call_expr (init_decl, 0),
|
||||
&ctor_statements);
|
||||
cgraph_build_static_cdtor ('I', ctor_statements,
|
||||
|
|
@ -343,8 +344,7 @@ struct gimple_opt_pass pass_tsan =
|
|||
static bool
|
||||
tsan_gate_O0 (void)
|
||||
{
|
||||
return flag_tsan != 0 && !optimize
|
||||
&& builtin_decl_implicit_p (BUILT_IN_TSAN_INIT);
|
||||
return flag_tsan != 0 && !optimize;
|
||||
}
|
||||
|
||||
struct gimple_opt_pass pass_tsan_O0 =
|
||||
|
|
|
|||
Loading…
Reference in New Issue