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gcc-plugins: add PASS_INFO and build_const_char_string() 

This updates the GCC plugins gcc-common.h from PaX Team to include
more helpers and header files, specifically adds the PASS_INFO()
macro to make plugin declarations nicer and a helper for proper
const string building.

Signed-off-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Kees Cook 2017-01-10 16:48:03 -08:00
parent 81d873a871
commit 8d4973a1c0
1 changed files with 44 additions and 11 deletions
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55
scripts/gcc-plugins/gcc-common.h
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@ -26,6 +26,9 @@
#include "except.h"
#include "function.h"
#include "toplev.h"
#if BUILDING_GCC_VERSION >= 5000
#include "expr.h"
#endif
#include "basic-block.h"
#include "intl.h"
#include "ggc.h"
@ -80,6 +83,9 @@
#include "diagnostic.h"
#include "tree-dump.h"
#include "tree-pass.h"
#if BUILDING_GCC_VERSION >= 4009
#include "pass_manager.h"
#endif
#include "predict.h"
#include "ipa-utils.h"
@ -119,20 +125,17 @@
#include "builtins.h"
#endif
/* #include "expr.h" where are you... */
extern rtx emit_move_insn(rtx x, rtx y);
/* missing from basic_block.h... */
extern void debug_dominance_info(enum cdi_direction dir);
extern void debug_dominance_tree(enum cdi_direction dir, basic_block root);
void debug_dominance_info(enum cdi_direction dir);
void debug_dominance_tree(enum cdi_direction dir, basic_block root);
#if BUILDING_GCC_VERSION == 4006
extern void debug_gimple_stmt(gimple);
extern void debug_gimple_seq(gimple_seq);
extern void print_gimple_seq(FILE *, gimple_seq, int, int);
extern void print_gimple_stmt(FILE *, gimple, int, int);
extern void print_gimple_expr(FILE *, gimple, int, int);
extern void dump_gimple_stmt(pretty_printer *, gimple, int, int);
void debug_gimple_stmt(gimple);
void debug_gimple_seq(gimple_seq);
void print_gimple_seq(FILE *, gimple_seq, int, int);
void print_gimple_stmt(FILE *, gimple, int, int);
void print_gimple_expr(FILE *, gimple, int, int);
void dump_gimple_stmt(pretty_printer *, gimple, int, int);
#endif
#define __unused __attribute__((__unused__))
@ -146,6 +149,29 @@ extern void dump_gimple_stmt(pretty_printer *, gimple, int, int);
/* should come from c-tree.h if only it were installed for gcc 4.5... */
#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1(TYPE)
static inline tree build_const_char_string(int len, const char *str)
{
tree cstr, elem, index, type;
cstr = build_string(len, str);
elem = build_type_variant(char_type_node, 1, 0);
index = build_index_type(size_int(len - 1));
type = build_array_type(elem, index);
TREE_TYPE(cstr) = type;
TREE_CONSTANT(cstr) = 1;
TREE_READONLY(cstr) = 1;
TREE_STATIC(cstr) = 1;
return cstr;
}
#define PASS_INFO(NAME, REF, ID, POS) \
struct register_pass_info NAME##_pass_info = { \
.pass = make_##NAME##_pass(), \
.reference_pass_name = REF, \
.ref_pass_instance_number = ID, \
.pos_op = POS, \
}
#if BUILDING_GCC_VERSION == 4005
#define FOR_EACH_LOCAL_DECL(FUN, I, D) \
for (tree vars = (FUN)->local_decls, (I) = 0; \
@ -527,6 +553,8 @@ static inline const greturn *as_a_const_greturn(const_gimple stmt)
#define section_name_prefix LTO_SECTION_NAME_PREFIX
#define fatal_error(loc, gmsgid, ...) fatal_error((gmsgid), __VA_ARGS__)
rtx emit_move_insn(rtx x, rtx y);
typedef struct rtx_def rtx_insn;
static inline const char *get_decl_section_name(const_tree decl)
@ -643,6 +671,11 @@ static inline const greturn *as_a_const_greturn(const_gimple stmt)
#define NODE_DECL(node) (node)->decl
#define cgraph_node_name(node) (node)->name()
#define NODE_IMPLICIT_ALIAS(node) (node)->cpp_implicit_alias
static inline opt_pass *get_pass_for_id(int id)
{
return g->get_passes()->get_pass_for_id(id);
}
#endif
#if BUILDING_GCC_VERSION >= 5000 && BUILDING_GCC_VERSION < 6000