0 ._I|Mjq؂am_J*j"Tfol bѿFile not found. File not found. + l4( (  fB- D_I|+, /* SPDX-License-Identifier: GPL-2.0 */ #ifndef _DYNAMIC_DEBUG_H #define _DYNAMIC_DEBUG_H #if defined(CONFIG_JUMP_LABEL) #include #endif #include /* * An instance of this structure is created in a special * ELF section at every dynamic debug callsite. At runtime, * the special section is treated as an array of these. */ struct _ddebug { /* * These fields are used to drive the user interface * for selecting and displaying debug callsites. */ const char *modname; const char *function; const char *filename; const char *format; unsigned int lineno:18; #define CLS_BITS 6 unsigned int class_id:CLS_BITS; #define _DPRINTK_CLASS_DFLT ((1 << CLS_BITS) - 1) /* * The flags field controls the behaviour at the callsite. * The bits here are changed dynamically when the user * writes commands to /dynamic_debug/control */ #define _DPRINTK_FLAGS_NONE 0 #define _DPRINTK_FLAGS_PRINT (1<<0) /* printk() a message using the format */ #define _DPRINTK_FLAGS_INCL_MODNAME (1<<1) #define _DPRINTK_FLAGS_INCL_FUNCNAME (1<<2) #define _DPRINTK_FLAGS_INCL_LINENO (1<<3) #define _DPRINTK_FLAGS_INCL_TID (1<<4) #define _DPRINTK_FLAGS_INCL_SOURCENAME (1<<5) #define _DPRINTK_FLAGS_INCL_ANY \ (_DPRINTK_FLAGS_INCL_MODNAME | _DPRINTK_FLAGS_INCL_FUNCNAME |\ _DPRINTK_FLAGS_INCL_LINENO | _DPRINTK_FLAGS_INCL_TID |\ _DPRINTK_FLAGS_INCL_SOURCENAME) #if defined DEBUG #define _DPRINTK_FLAGS_DEFAULT _DPRINTK_FLAGS_PRINT #else #define _DPRINTK_FLAGS_DEFAULT 0 #endif unsigned int flags:8; #ifdef CONFIG_JUMP_LABEL union { struct static_key_true dd_key_true; struct static_key_false dd_key_false; } key; #endif } __attribute__((aligned(8))); enum class_map_type { DD_CLASS_TYPE_DISJOINT_BITS, /** * DD_CLASS_TYPE_DISJOINT_BITS: classes are independent, one per bit. * expecting hex input. Built for drm.debug, basis for other types. */ DD_CLASS_TYPE_LEVEL_NUM, /** * DD_CLASS_TYPE_LEVEL_NUM: input is numeric level, 0-N. * N turns on just bits N-1 .. 0, so N=0 turns all bits off. */ DD_CLASS_TYPE_DISJOINT_NAMES, /** * DD_CLASS_TYPE_DISJOINT_NAMES: input is a CSV of [+-]CLASS_NAMES, * classes are independent, like _DISJOINT_BITS. */ DD_CLASS_TYPE_LEVEL_NAMES, /** * DD_CLASS_TYPE_LEVEL_NAMES: input is a CSV of [+-]CLASS_NAMES, * intended for names like: INFO,DEBUG,TRACE, with a module prefix * avoid EMERG,ALERT,CRIT,ERR,WARNING: they're not debug */ }; struct ddebug_class_map { struct list_head link; struct module *mod; const char *mod_name; /* needed for builtins */ const char **class_names; const int length; const int base; /* index of 1st .class_id, allows split/shared space */ enum class_map_type map_type; }; /** * DECLARE_DYNDBG_CLASSMAP - declare classnames known by a module * @_var: a struct ddebug_class_map, passed to module_param_cb * @_type: enum class_map_type, chooses bits/verbose, numeric/symbolic * @_base: offset of 1st class-name. splits .class_id space * @classes: class-names used to control class'd prdbgs */ #define DECLARE_DYNDBG_CLASSMAP(_var, _maptype, _base, ...) \ static const char *_var##_classnames[] = { __VA_ARGS__ }; \ static struct ddebug_class_map __aligned(8) __used \ __section("__dyndbg_classes") _var = { \ .mod = THIS_MODULE, \ .mod_name = KBUILD_MODNAME, \ .base = _base, \ .map_type = _maptype, \ .length = NUM_TYPE_ARGS(char*, __VA_ARGS__), \ .class_names = _var##_classnames, \ } #define NUM_TYPE_ARGS(eltype, ...) \ (sizeof((eltype[]){__VA_ARGS__}) / sizeof(eltype)) /* encapsulate linker provided built-in (or module) dyndbg data */ struct _ddebug_info { struct _ddebug *descs; struct ddebug_class_map *classes; unsigned int num_descs; unsigned int num_classes; }; struct ddebug_class_param { union { unsigned long *bits; unsigned int *lvl; }; char flags[8]; const st