#ifndef _PROBE_FINDER_H #define _PROBE_FINDER_H #include #include "util.h" #include "intlist.h" #include "probe-event.h" #define MAX_PROBE_BUFFER 1024 #define MAX_PROBES 128 #define MAX_PROBE_ARGS 128 #define PROBE_ARG_VARS "$vars" #define PROBE_ARG_PARAMS "$params" static inline int is_c_varname(const char *name) { /* TODO */ return isalpha(name[0]) || name[0] == '_'; } #ifdef HAVE_DWARF_SUPPORT #include "dwarf-aux.h" /* TODO: export debuginfo data structure even if no dwarf support */ /* debug information structure */ struct debuginfo { Dwarf *dbg; Dwfl_Module *mod; Dwfl *dwfl; Dwarf_Addr bias; }; /* This also tries to open distro debuginfo */ struct debuginfo *debuginfo__new(const char *path); void debuginfo__delete(struct debuginfo *dbg); /* Find probe_trace_events specified by perf_probe_event from debuginfo */ int debuginfo__find_trace_events(struct debuginfo *dbg, struct perf_probe_event *pev, struct probe_trace_event **tevs); /* Find a perf_probe_point from debuginfo */ int debuginfo__find_probe_point(struct debuginfo *dbg, unsigned long addr, struct perf_probe_point *ppt); int debuginfo__get_text_offset(struct debuginfo *dbg, Dwarf_Addr *offs, bool adjust_offset); /* Find a line range */ int debuginfo__find_line_range(struct debuginfo *dbg, struct line_range *lr); /* Find available variables */ int debuginfo__find_available_vars_at(struct debuginfo *dbg, struct perf_probe_event *pev, struct variable_list **vls); /* Find a src file from a DWARF tag path */ int get_real_path(const char *raw_path, const char *comp_dir, char **new_path); struct probe_finder { struct perf_probe_event *pev; /* Target probe event */ /* Callback when a probe point is found */ int (*callback)(Dwarf_Die *sc_die, struct probe_finder *pf); /* For function searching */ int lno; /* Line number */ Dwarf_Addr addr; /* Address */ const char *fname; /* Real file name */ Dwarf_Die cu_die; /* Current CU */ Dwarf_Die sp_die; struct intlist *lcache; /* Line cache for lazy match */ /* For variable searching */ #if _ELFUTILS_PREREQ(0, 142) /* Call Frame Information from .eh_frame */ Dwarf_CFI *cfi_eh; /* Call Frame Information from .debug_frame */ Dwarf_CFI *cfi_dbg; #endif Dwarf_Op *fb_ops; /* Frame base attribute */ unsigned int machine; /* Target machine arch */ struct perf_probe_arg *pvar; /* Current target variable */ struct probe_trace_arg *tvar; /* Current result variable */ }; struct trace_event_finder { struct probe_finder pf; Dwfl_Module *mod; /* For solving symbols */ struct probe_trace_event *tevs; /* Found trace events */ int ntevs; /* Number of trace events */ int max_tevs; /* Max number of trace events */ }; struct available_var_finder { struct probe_finder pf; Dwfl_Module *mod; /* For solving symbols */ struct variable_list *vls; /* Found variable lists */ int nvls; /* Number of variable lists */ int max_vls; /* Max no. of variable lists */ bool child; /* Search child scopes */ }; struct line_finder { struct line_range *lr; /* Target line range */ const char *fname; /* File name */ int lno_s; /* Start line number */ int lno_e; /* End line number */ Dwarf_Die cu_die; /* Current CU */ Dwarf_Die sp_die; int found; }; #endif /* HAVE_DWARF_SUPPORT */ #endif /*_PROBE_FINDER_H */ ='context' onchange='this.form.submit();'>space:mode:
authorDaniel Vetter <daniel.vetter@ffwll.ch>2016-12-09 19:53:05 +0100
committerJonathan Corbet <corbet@lwn.net>2016-12-11 13:37:55 -0700
commit868c97a846a73e937d835b09b8c885a69df50ec8 (patch)
tree9cdc05e799d117ac71b29d0958ee3dc65b8d539d /Documentation/hwmon/mcp3021
parent9e22ff439fa2e1201b168c001683f275afd46258 (diff)
dma-buf: Extract dma-buf.rst
Just prep work to polish and consolidate all the dma-buf related documenation. Unfortunately I didn't discover a way to both integrate this new file into the overall toc while keeping it at the current place. Work around that by moving it into the overall driver-api/index.rst. Cc: linux-doc@vger.kernel.org Cc: Jonathan Corbet <corbet@lwn.net> Cc: Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'Documentation/hwmon/mcp3021')