/* * Generator for RTL 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_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_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 #if BUILDING_GCC_VERSION >= 4009 namespace { static const pass_data _PASS_NAME_PASS_DATA = { #else static struct rtl_opt_pass _PASS_NAME_PASS = { .pass = { #endif .type = RTL_PASS, .name = _PASS_NAME_NAME, #if BUILDING_GCC_VERSION >= 4008 .optinfo_flags = OPTGROUP_NONE, #endif #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, #if BUILDING_GCC_VERSION < 4009 } #endif }; #if BUILDING_GCC_VERSION >= 4009 class _PASS_NAME_PASS : public rtl_opt_pass { public: _PASS_NAME_PASS() : rtl_opt_pass(_PASS_NAME_PASS_DATA, g) {} #ifndef NO_GATE #if BUILDING_GCC_VERSION >= 5000 virtual bool gate(function *) { return _GATE(); } #else virtual bool gate(void) { return _GATE(); } #endif #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_GATE #undef NO_EXECUTE #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 _GATE #undef __GATE #undef _GCC_PLUGIN_CONCAT2 #undef _GCC_PLUGIN_CONCAT3 #undef _GCC_PLUGIN_STRINGIFY #undef __GCC_PLUGIN_STRINGIFY #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 #endif /* PASS_NAME */
authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-15 16:09:50 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-15 16:09:50 -0800
commit99421c1cb27fb837e93b517036fab4500fe39de5 (patch)
treede5fc5bacb671223f389793ad643cebe520bc292 /net/dccp/dccp.h
parentc92816275674c1491ce228ee49aa030a5fa1be04 (diff)
parent93362fa47fe98b62e4a34ab408c4a418432e7939 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull namespace fixes from Eric Biederman: "This tree contains 4 fixes. The first is a fix for a race that can causes oopses under the right circumstances, and that someone just recently encountered. Past that are several small trivial correct fixes. A real issue that was blocking development of an out of tree driver, but does not appear to have caused any actual problems for in-tree code. A potential deadlock that was reported by lockdep. And a deadlock people have experienced and took the time to track down caused by a cleanup that removed the code to drop a reference count" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: sysctl: Drop reference added by grab_header in proc_sys_readdir pid: fix lockdep deadlock warning due to ucount_lock libfs: Modify mount_pseudo_xattr to be clear it is not a userspace mount mnt: Protect the mountpoint hashtable with mount_lock
Diffstat (limited to 'net/dccp/dccp.h')