atmos
/
RAP-optimizations
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

new check code fragment

This commit is contained in:
fanfuqiang 2018-09-25 10:14:03 +08:00
parent c5b1d1a62e
commit 4eefb82dd0
1 changed files with 35 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
src/rap_plugin/rap-fe-cfi.c
View File

@ -43,6 +43,8 @@ static bitmap sensi_funcs;
static struct pointer_set_t *pointer_types;
//
static bool will_call_ipa_pta;
/* For compatiable with the original RAP */
typedef rap_hash_t.hash rap_hash_value_type;
/* Test GCC will call some passes which is benefit. */
void
@ -54,7 +56,7 @@ rap_check_will_call_passes (void* gcc_data, void* user_data)
(! strcmp (((struct opt_pass *)current_pass)->name, "inline")))
{
if (*(bool*)gcc_data)
fprintf(dump_rap_opt_statistics_fd, "[+] NOT call pass inline\n");
fprintf(dump_rap_opt_statistics_fd, "[+] NOT call pass 'inline'\n");
}
return;
@ -266,6 +268,20 @@ rap_optimization_clean ()
return;
}
/* Build the check statement:
if ((int *)(cs->target_function - sizeof(rap_hash_value_type)) != hash)
error () */
static void
build_cfi_check (gimple cs, rap_hash_value_type hash)
{
tree decl; type;
gcc_assert (is_gimple_call (cs));
decl = gimple_call_fn (cs);
/* We must be indirect call */
gcc_assert (DECL_CODE (decl) == SSA_NAME);
type = cs->gimple_call.u.fntype;
}
// types_compatible_p
/*
@ -300,21 +316,34 @@ rap_fe_cfi_execute ()
func = DECL_STRUCT_FUNCTION (node->symbol.decl);
push_cfun (func);
//
FOR_EACH_BB_FN (bb, func)
{
gimple_stmt_iterator gsi;
for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
{
gimple stmt = gsi_stmt (gsi);
tree decl;
gimple cs;
rap_hash_value_type hash;
cs = gsi_stmt (gsi);
/* We are in forward cfi only cares about function call */
if (! is_gimple_call (cs))
continue;
/* direct call, nothing todo */
if (gimple_call_fndecl (cs))
;
/* indirect call */
else
{
decl = gimple_call_fn (cs);
hash = find_cfi_hash (decl);
gcc_assert (hash);
build_cfi_check (cs, hash);
}
}
}
pop_cfun ();
}
indirect_function_maps = pointer_map_create ();