X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gdb%2Fdwarf2loc.h;h=96925e4c4850b80caed17995f397feb176d33904;hb=e609377629a12f6518eaf100c1983e23c80fecc1;hp=9efe1962105049768f6ed6b16325ebc198d7dcf2;hpb=8e3b41a9061833aa9dc504d68e7446bca4984f16;p=platform%2Fupstream%2Fbinutils.git diff --git a/gdb/dwarf2loc.h b/gdb/dwarf2loc.h index 9efe196..96925e4 100644 --- a/gdb/dwarf2loc.h +++ b/gdb/dwarf2loc.h @@ -1,7 +1,6 @@ /* DWARF 2 location expression support for GDB. - Copyright (C) 2003, 2005, 2007, 2008, 2009, 2010, 2011 - Free Software Foundation, Inc. + Copyright (C) 2003-2014 Free Software Foundation, Inc. This file is part of GDB. @@ -21,6 +20,8 @@ #if !defined (DWARF2LOC_H) #define DWARF2LOC_H +#include "dwarf2expr.h" + struct symbol_computed_ops; struct objfile; struct dwarf2_per_cu_data; @@ -32,7 +33,7 @@ struct axs_value; dwarf2read.c and dwarf2loc.c. */ /* `set debug entry-values' setting. */ -extern int entry_values_debug; +extern unsigned int entry_values_debug; /* Return the OBJFILE associated with the compilation unit CU. If CU came from a separate debuginfo file, then the master objfile is @@ -40,7 +41,7 @@ extern int entry_values_debug; struct objfile *dwarf2_per_cu_objfile (struct dwarf2_per_cu_data *cu); /* Return the address size given in the compilation unit header for CU. */ -CORE_ADDR dwarf2_per_cu_addr_size (struct dwarf2_per_cu_data *cu); +int dwarf2_per_cu_addr_size (struct dwarf2_per_cu_data *cu); /* Return the DW_FORM_ref_addr size given in the compilation unit header for CU. */ @@ -61,12 +62,22 @@ const gdb_byte *dwarf2_find_location_expression size_t *locexpr_length, CORE_ADDR pc); -struct dwarf2_locexpr_baton dwarf2_fetch_die_location_block - (unsigned int offset, struct dwarf2_per_cu_data *per_cu, +struct dwarf2_locexpr_baton dwarf2_fetch_die_loc_sect_off + (sect_offset offset_in_cu, struct dwarf2_per_cu_data *per_cu, CORE_ADDR (*get_frame_pc) (void *baton), void *baton); -struct type *dwarf2_get_die_type (unsigned int die_offset, +struct dwarf2_locexpr_baton dwarf2_fetch_die_loc_cu_off + (cu_offset offset_in_cu, struct dwarf2_per_cu_data *per_cu, + CORE_ADDR (*get_frame_pc) (void *baton), + void *baton); + +extern const gdb_byte *dwarf2_fetch_constant_bytes (sect_offset, + struct dwarf2_per_cu_data *, + struct obstack *, + LONGEST *); + +struct type *dwarf2_get_die_type (cu_offset die_offset, struct dwarf2_per_cu_data *per_cu); /* Evaluate a location description, starting at DATA and with length @@ -76,9 +87,21 @@ struct type *dwarf2_get_die_type (unsigned int die_offset, struct value *dwarf2_evaluate_loc_desc (struct type *type, struct frame_info *frame, const gdb_byte *data, - unsigned short size, + size_t size, struct dwarf2_per_cu_data *per_cu); +/* Converts a dynamic property into a static one. ADDRESS is the address + of the object currently being evaluated and might be nedded. + Returns 1 if PROP could be converted and the static value is passed back + into VALUE, otherwise returns 0. */ + +int dwarf2_evaluate_property (const struct dynamic_prop *prop, + CORE_ADDR address, + CORE_ADDR *value); + +CORE_ADDR dwarf2_read_addr_index (struct dwarf2_per_cu_data *per_cu, + unsigned int addr_index); + /* The symbol location baton types used by the DWARF-2 reader (i.e. SYMBOL_LOCATION_BATON for a LOC_COMPUTED symbol). "struct dwarf2_locexpr_baton" is for a symbol with a single location @@ -87,11 +110,13 @@ struct value *dwarf2_evaluate_loc_desc (struct type *type, struct dwarf2_locexpr_baton { - /* Pointer to the start of the location expression. */ + /* Pointer to the start of the location expression. Valid only if SIZE is + not zero. */ const gdb_byte *data; - /* Length of the location expression. */ - unsigned long size; + /* Length of the location expression. For optimized out expressions it is + zero. */ + size_t size; /* The compilation unit containing the symbol whose location we're computing. */ @@ -108,16 +133,43 @@ struct dwarf2_loclist_baton const gdb_byte *data; /* Length of the location list. */ - unsigned long size; + size_t size; /* The compilation unit containing the symbol whose location we're computing. */ struct dwarf2_per_cu_data *per_cu; + + /* Non-zero if the location list lives in .debug_loc.dwo. + The format of entries in this section are different. */ + unsigned char from_dwo; +}; + +/* A dynamic property is either expressed as a single location expression + or a location list. If the property is an indirection, pointing to + another die, keep track of the targeted type in REFERENCED_TYPE. */ + +struct dwarf2_property_baton +{ + /* If the property is an indirection, we need to evaluate the location + LOCEXPR or LOCLIST in the context of the type REFERENCED_TYPE. + If NULL, the location is the actual value of the property. */ + struct type *referenced_type; + union + { + /* Location expression. */ + struct dwarf2_locexpr_baton locexpr; + + /* Location list to be evaluated in the context of REFERENCED_TYPE. */ + struct dwarf2_loclist_baton loclist; + }; }; extern const struct symbol_computed_ops dwarf2_locexpr_funcs; extern const struct symbol_computed_ops dwarf2_loclist_funcs; +extern const struct symbol_block_ops dwarf2_block_frame_base_locexpr_funcs; +extern const struct symbol_block_ops dwarf2_block_frame_base_loclist_funcs; + /* Compile a DWARF location expression to an agent expression. EXPR is the agent expression we are building. @@ -139,4 +191,23 @@ extern void dwarf2_compile_expr_to_ax (struct agent_expr *expr, const gdb_byte *op_end, struct dwarf2_per_cu_data *per_cu); +/* Determined tail calls for constructing virtual tail call frames. */ + +struct call_site_chain + { + /* Initially CALLERS == CALLEES == LENGTH. For partially ambiguous result + CALLERS + CALLEES < LENGTH. */ + int callers, callees, length; + + /* Variably sized array with LENGTH elements. Later [0..CALLERS-1] contain + top (GDB "prev") sites and [LENGTH-CALLEES..LENGTH-1] contain bottom + (GDB "next") sites. One is interested primarily in the PC field. */ + struct call_site *call_site[1]; + }; + +struct call_site_stuff; +extern struct call_site_chain *call_site_find_chain (struct gdbarch *gdbarch, + CORE_ADDR caller_pc, + CORE_ADDR callee_pc); + #endif /* dwarf2loc.h */