linux-stable/scripts/gcc-plugins/gcc-generate-ipa-pass.h
Masahiro Yamada af2d22254e gcc-plugins: remove code for GCC versions older than 4.9
Documentation/process/changes.rst says the minimal GCC version is 4.9.
Hence, BUILDING_GCC_VERSION is greater than or equal to 4009.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20201202134929.99883-1-masahiroy@kernel.org
2020-12-04 14:09:41 -08:00

267 lines
6.7 KiB
C++

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Generator for IPA pass related boilerplate code/data
*
* Supports gcc 4.5-6
*
* Usage:
*
* 1. before inclusion define PASS_NAME
* 2. before inclusion define NO_* for unimplemented callbacks
* NO_GENERATE_SUMMARY
* NO_READ_SUMMARY
* NO_WRITE_SUMMARY
* NO_READ_OPTIMIZATION_SUMMARY
* NO_WRITE_OPTIMIZATION_SUMMARY
* NO_STMT_FIXUP
* NO_FUNCTION_TRANSFORM
* NO_VARIABLE_TRANSFORM
* NO_GATE
* NO_EXECUTE
* 3. before inclusion define PROPERTIES_* and *TODO_FLAGS_* to override
* the default 0 values
* 4. for convenience, all the above will be undefined after inclusion!
* 5. the only exported name is make_PASS_NAME_pass() to register with gcc
*/
#ifndef PASS_NAME
#error at least PASS_NAME must be defined
#else
#define __GCC_PLUGIN_STRINGIFY(n) #n
#define _GCC_PLUGIN_STRINGIFY(n) __GCC_PLUGIN_STRINGIFY(n)
#define _GCC_PLUGIN_CONCAT2(x, y) x ## y
#define _GCC_PLUGIN_CONCAT3(x, y, z) x ## y ## z
#define __PASS_NAME_PASS_DATA(n) _GCC_PLUGIN_CONCAT2(n, _pass_data)
#define _PASS_NAME_PASS_DATA __PASS_NAME_PASS_DATA(PASS_NAME)
#define __PASS_NAME_PASS(n) _GCC_PLUGIN_CONCAT2(n, _pass)
#define _PASS_NAME_PASS __PASS_NAME_PASS(PASS_NAME)
#define _PASS_NAME_NAME _GCC_PLUGIN_STRINGIFY(PASS_NAME)
#define __MAKE_PASS_NAME_PASS(n) _GCC_PLUGIN_CONCAT3(make_, n, _pass)
#define _MAKE_PASS_NAME_PASS __MAKE_PASS_NAME_PASS(PASS_NAME)
#ifdef NO_GENERATE_SUMMARY
#define _GENERATE_SUMMARY NULL
#else
#define __GENERATE_SUMMARY(n) _GCC_PLUGIN_CONCAT2(n, _generate_summary)
#define _GENERATE_SUMMARY __GENERATE_SUMMARY(PASS_NAME)
#endif
#ifdef NO_READ_SUMMARY
#define _READ_SUMMARY NULL
#else
#define __READ_SUMMARY(n) _GCC_PLUGIN_CONCAT2(n, _read_summary)
#define _READ_SUMMARY __READ_SUMMARY(PASS_NAME)
#endif
#ifdef NO_WRITE_SUMMARY
#define _WRITE_SUMMARY NULL
#else
#define __WRITE_SUMMARY(n) _GCC_PLUGIN_CONCAT2(n, _write_summary)
#define _WRITE_SUMMARY __WRITE_SUMMARY(PASS_NAME)
#endif
#ifdef NO_READ_OPTIMIZATION_SUMMARY
#define _READ_OPTIMIZATION_SUMMARY NULL
#else
#define __READ_OPTIMIZATION_SUMMARY(n) _GCC_PLUGIN_CONCAT2(n, _read_optimization_summary)
#define _READ_OPTIMIZATION_SUMMARY __READ_OPTIMIZATION_SUMMARY(PASS_NAME)
#endif
#ifdef NO_WRITE_OPTIMIZATION_SUMMARY
#define _WRITE_OPTIMIZATION_SUMMARY NULL
#else
#define __WRITE_OPTIMIZATION_SUMMARY(n) _GCC_PLUGIN_CONCAT2(n, _write_optimization_summary)
#define _WRITE_OPTIMIZATION_SUMMARY __WRITE_OPTIMIZATION_SUMMARY(PASS_NAME)
#endif
#ifdef NO_STMT_FIXUP
#define _STMT_FIXUP NULL
#else
#define __STMT_FIXUP(n) _GCC_PLUGIN_CONCAT2(n, _stmt_fixup)
#define _STMT_FIXUP __STMT_FIXUP(PASS_NAME)
#endif
#ifdef NO_FUNCTION_TRANSFORM
#define _FUNCTION_TRANSFORM NULL
#else
#define __FUNCTION_TRANSFORM(n) _GCC_PLUGIN_CONCAT2(n, _function_transform)
#define _FUNCTION_TRANSFORM __FUNCTION_TRANSFORM(PASS_NAME)
#endif
#ifdef NO_VARIABLE_TRANSFORM
#define _VARIABLE_TRANSFORM NULL
#else
#define __VARIABLE_TRANSFORM(n) _GCC_PLUGIN_CONCAT2(n, _variable_transform)
#define _VARIABLE_TRANSFORM __VARIABLE_TRANSFORM(PASS_NAME)
#endif
#ifdef NO_GATE
#define _GATE NULL
#define _HAS_GATE false
#else
#define __GATE(n) _GCC_PLUGIN_CONCAT2(n, _gate)
#define _GATE __GATE(PASS_NAME)
#define _HAS_GATE true
#endif
#ifdef NO_EXECUTE
#define _EXECUTE NULL
#define _HAS_EXECUTE false
#else
#define __EXECUTE(n) _GCC_PLUGIN_CONCAT2(n, _execute)
#define _EXECUTE __EXECUTE(PASS_NAME)
#define _HAS_EXECUTE true
#endif
#ifndef PROPERTIES_REQUIRED
#define PROPERTIES_REQUIRED 0
#endif
#ifndef PROPERTIES_PROVIDED
#define PROPERTIES_PROVIDED 0
#endif
#ifndef PROPERTIES_DESTROYED
#define PROPERTIES_DESTROYED 0
#endif
#ifndef TODO_FLAGS_START
#define TODO_FLAGS_START 0
#endif
#ifndef TODO_FLAGS_FINISH
#define TODO_FLAGS_FINISH 0
#endif
#ifndef FUNCTION_TRANSFORM_TODO_FLAGS_START
#define FUNCTION_TRANSFORM_TODO_FLAGS_START 0
#endif
namespace {
static const pass_data _PASS_NAME_PASS_DATA = {
.type = IPA_PASS,
.name = _PASS_NAME_NAME,
.optinfo_flags = OPTGROUP_NONE,
#if BUILDING_GCC_VERSION >= 5000
#elif BUILDING_GCC_VERSION == 4009
.has_gate = _HAS_GATE,
.has_execute = _HAS_EXECUTE,
#else
.gate = _GATE,
.execute = _EXECUTE,
.sub = NULL,
.next = NULL,
.static_pass_number = 0,
#endif
.tv_id = TV_NONE,
.properties_required = PROPERTIES_REQUIRED,
.properties_provided = PROPERTIES_PROVIDED,
.properties_destroyed = PROPERTIES_DESTROYED,
.todo_flags_start = TODO_FLAGS_START,
.todo_flags_finish = TODO_FLAGS_FINISH,
};
class _PASS_NAME_PASS : public ipa_opt_pass_d {
public:
_PASS_NAME_PASS() : ipa_opt_pass_d(_PASS_NAME_PASS_DATA,
g,
_GENERATE_SUMMARY,
_WRITE_SUMMARY,
_READ_SUMMARY,
_WRITE_OPTIMIZATION_SUMMARY,
_READ_OPTIMIZATION_SUMMARY,
_STMT_FIXUP,
FUNCTION_TRANSFORM_TODO_FLAGS_START,
_FUNCTION_TRANSFORM,
_VARIABLE_TRANSFORM) {}
#ifndef NO_GATE
#if BUILDING_GCC_VERSION >= 5000
virtual bool gate(function *) { return _GATE(); }
#else
virtual bool gate(void) { return _GATE(); }
#endif
virtual opt_pass *clone() { return new _PASS_NAME_PASS(); }
#ifndef NO_EXECUTE
#if BUILDING_GCC_VERSION >= 5000
virtual unsigned int execute(function *) { return _EXECUTE(); }
#else
virtual unsigned int execute(void) { return _EXECUTE(); }
#endif
#endif
};
}
opt_pass *_MAKE_PASS_NAME_PASS(void)
{
return new _PASS_NAME_PASS();
}
#else
struct opt_pass *_MAKE_PASS_NAME_PASS(void)
{
return &_PASS_NAME_PASS.pass;
}
#endif
/* clean up user provided defines */
#undef PASS_NAME
#undef NO_GENERATE_SUMMARY
#undef NO_WRITE_SUMMARY
#undef NO_READ_SUMMARY
#undef NO_WRITE_OPTIMIZATION_SUMMARY
#undef NO_READ_OPTIMIZATION_SUMMARY
#undef NO_STMT_FIXUP
#undef NO_FUNCTION_TRANSFORM
#undef NO_VARIABLE_TRANSFORM
#undef NO_GATE
#undef NO_EXECUTE
#undef FUNCTION_TRANSFORM_TODO_FLAGS_START
#undef PROPERTIES_DESTROYED
#undef PROPERTIES_PROVIDED
#undef PROPERTIES_REQUIRED
#undef TODO_FLAGS_FINISH
#undef TODO_FLAGS_START
/* clean up generated defines */
#undef _EXECUTE
#undef __EXECUTE
#undef _FUNCTION_TRANSFORM
#undef __FUNCTION_TRANSFORM
#undef _GATE
#undef __GATE
#undef _GCC_PLUGIN_CONCAT2
#undef _GCC_PLUGIN_CONCAT3
#undef _GCC_PLUGIN_STRINGIFY
#undef __GCC_PLUGIN_STRINGIFY
#undef _GENERATE_SUMMARY
#undef __GENERATE_SUMMARY
#undef _HAS_EXECUTE
#undef _HAS_GATE
#undef _MAKE_PASS_NAME_PASS
#undef __MAKE_PASS_NAME_PASS
#undef _PASS_NAME_NAME
#undef _PASS_NAME_PASS
#undef __PASS_NAME_PASS
#undef _PASS_NAME_PASS_DATA
#undef __PASS_NAME_PASS_DATA
#undef _READ_OPTIMIZATION_SUMMARY
#undef __READ_OPTIMIZATION_SUMMARY
#undef _READ_SUMMARY
#undef __READ_SUMMARY
#undef _STMT_FIXUP
#undef __STMT_FIXUP
#undef _VARIABLE_TRANSFORM
#undef __VARIABLE_TRANSFORM
#undef _WRITE_OPTIMIZATION_SUMMARY
#undef __WRITE_OPTIMIZATION_SUMMARY
#undef _WRITE_SUMMARY
#undef __WRITE_SUMMARY
#endif /* PASS_NAME */