X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Farch-utils.h;h=77ee9af2bfc9ad2e376071161bdf0b2d6f9279b5;hb=87b240d48512fa30aab8b5963914a9093009fd68;hp=0cb3c1ea7ff40f84902921fcab1aa15be9183d3b;hpb=e7faf938594c703cb898154f1eed5278163eb2ec;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/arch-utils.h b/gdb/arch-utils.h index 0cb3c1ea7f..77ee9af2bf 100644 --- a/gdb/arch-utils.h +++ b/gdb/arch-utils.h @@ -1,7 +1,6 @@ /* Dynamic architecture support for GDB, the GNU debugger. - Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004, 2007 - Free Software Foundation, Inc. + Copyright (C) 1998-2018 Free Software Foundation, Inc. This file is part of GDB. @@ -26,33 +25,100 @@ struct frame_info; struct minimal_symbol; struct type; struct gdbarch_info; - -/* gdbarch trace variable */ -extern int gdbarch_debug; - -/* The only possible cases for inner_than. */ +struct dwarf2_frame_state; + +template +struct bp_manipulation +{ + static int + kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr) + { + return bp_size; + } + + static const gdb_byte * + bp_from_kind (struct gdbarch *gdbarch, int kind, int *size) + { + *size = kind; + return break_insn; + } +}; + +template +struct bp_manipulation_endian +{ + static int + kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr) + { + return bp_size; + } + + static const gdb_byte * + bp_from_kind (struct gdbarch *gdbarch, int kind, int *size) + { + *size = kind; + if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) + return break_insn_big; + else + return break_insn_little; + } +}; + +#define BP_MANIPULATION(BREAK_INSN) \ + bp_manipulation + +#define BP_MANIPULATION_ENDIAN(BREAK_INSN_LITTLE, BREAK_INSN_BIG) \ + bp_manipulation_endian + +/* Default implementation of gdbarch_displaced_hw_singlestep. */ +extern int + default_displaced_step_hw_singlestep (struct gdbarch *, + struct displaced_step_closure *); + +/* Possible value for gdbarch_displaced_step_location: + Place displaced instructions at the program's entry point, + leaving space for inferior function call return breakpoints. */ +extern CORE_ADDR displaced_step_at_entry_point (struct gdbarch *gdbarch); + +/* The only possible cases for inner_than. */ extern int core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs); extern int core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs); /* Identity functions on a CORE_ADDR. Just return the "addr". */ -extern CORE_ADDR core_addr_identity (CORE_ADDR addr); +extern CORE_ADDR core_addr_identity (struct gdbarch *gdbarch, CORE_ADDR addr); extern gdbarch_convert_from_func_ptr_addr_ftype convert_from_func_ptr_addr_identity; -/* No-op conversion of reg to regnum. */ +/* No-op conversion of reg to regnum. */ -extern int no_op_reg_to_regnum (int reg); +extern int no_op_reg_to_regnum (struct gdbarch *gdbarch, int reg); -/* Do nothing version of elf_make_msymbol_special. */ +/* Do nothing version of coff_make_msymbol_special. */ -void default_elf_make_msymbol_special (asymbol *sym, struct minimal_symbol *msym); +void default_coff_make_msymbol_special (int val, struct minimal_symbol *msym); -/* Do nothing version of coff_make_msymbol_special. */ +/* Do nothing default implementation of gdbarch_make_symbol_special. */ -void default_coff_make_msymbol_special (int val, struct minimal_symbol *msym); +void default_make_symbol_special (struct symbol *sym, struct objfile *objfile); + +/* Do nothing default implementation of gdbarch_adjust_dwarf2_addr. */ + +CORE_ADDR default_adjust_dwarf2_addr (CORE_ADDR pc); + +/* Do nothing default implementation of gdbarch_adjust_dwarf2_line. */ + +CORE_ADDR default_adjust_dwarf2_line (CORE_ADDR addr, int rel); + +/* Default DWARF vendor CFI handler. */ + +bool default_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdb_byte op, + struct dwarf2_frame_state *fs); /* Version of cannot_fetch_register() / cannot_store_register() that - always fails. */ + always fails. */ int cannot_register_not (struct gdbarch *gdbarch, int regnum); @@ -62,15 +128,25 @@ int cannot_register_not (struct gdbarch *gdbarch, int regnum); extern gdbarch_virtual_frame_pointer_ftype legacy_virtual_frame_pointer; +/* Default implementation of gdbarch_floatformat_for_type. */ +extern const struct floatformat ** + default_floatformat_for_type (struct gdbarch *gdbarch, + const char *name, int len); + extern CORE_ADDR generic_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc); extern CORE_ADDR generic_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc); -extern int generic_in_solib_return_trampoline (CORE_ADDR pc, char *name); +extern int generic_in_solib_return_trampoline (struct gdbarch *gdbarch, + CORE_ADDR pc, const char *name); -extern int generic_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc); +extern int generic_stack_frame_destroyed_p (struct gdbarch *gdbarch, + CORE_ADDR pc); + +extern int default_code_of_frame_writable (struct gdbarch *gdbarch, + struct frame_info *frame); /* By default, registers are not convertible. */ extern int generic_convert_register_p (struct gdbarch *gdbarch, int regnum, @@ -115,4 +191,84 @@ extern void gdbarch_info_fill (struct gdbarch_info *info); extern struct gdbarch *gdbarch_from_bfd (bfd *abfd); +/* Return "current" architecture. If the target is running, this is the + architecture of the selected frame. Otherwise, the "current" architecture + defaults to the target architecture. + + This function should normally be called solely by the command interpreter + routines to determine the architecture to execute a command in. */ +extern struct gdbarch *get_current_arch (void); + +extern int default_has_shared_address_space (struct gdbarch *); + +extern int default_fast_tracepoint_valid_at (struct gdbarch *gdbarch, + CORE_ADDR addr, std::string *msg); + +extern const gdb_byte *default_breakpoint_from_pc (struct gdbarch *gdbarch, + CORE_ADDR *pcptr, + int *lenptr); + +extern int default_breakpoint_kind_from_current_state (struct gdbarch *gdbarch, + struct regcache *regcache, + CORE_ADDR *pcptr); + +extern void default_gen_return_address (struct gdbarch *gdbarch, + struct agent_expr *ax, + struct axs_value *value, + CORE_ADDR scope); + +extern const char *default_auto_charset (void); +extern const char *default_auto_wide_charset (void); + +extern int default_return_in_first_hidden_param_p (struct gdbarch *, + struct type *); + +extern int default_insn_is_call (struct gdbarch *, CORE_ADDR); +extern int default_insn_is_ret (struct gdbarch *, CORE_ADDR); +extern int default_insn_is_jump (struct gdbarch *, CORE_ADDR); + +/* Do-nothing version of vsyscall_range. Returns false. */ + +extern int default_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range); + +/* Default way to advance the PC to the next instruction in order to + skip a permanent breakpoint. Increments the PC by the size of a + software breakpoint instruction, as determined with + gdbarch_breakpoint_from_pc. This matches how the breakpoints + module determines whether a breakpoint is permanent. */ +extern void default_skip_permanent_breakpoint (struct regcache *regcache); + +/* Symbols for gdbarch_infcall_mmap; their Linux PROT_* system + definitions would be dependent on compilation host. */ +#define GDB_MMAP_PROT_READ 0x1 /* Page can be read. */ +#define GDB_MMAP_PROT_WRITE 0x2 /* Page can be written. */ +#define GDB_MMAP_PROT_EXEC 0x4 /* Page can be executed. */ + +extern CORE_ADDR default_infcall_mmap (CORE_ADDR size, unsigned prot); +extern void default_infcall_munmap (CORE_ADDR addr, CORE_ADDR size); +extern char *default_gcc_target_options (struct gdbarch *gdbarch); +extern const char *default_gnu_triplet_regexp (struct gdbarch *gdbarch); +extern int default_addressable_memory_unit_size (struct gdbarch *gdbarch); + +extern void default_guess_tracepoint_registers (struct gdbarch *gdbarch, + struct regcache *regcache, + CORE_ADDR addr); + +extern int default_print_insn (bfd_vma memaddr, disassemble_info *info); + +/* Wrapper to gdbarch_skip_prologue, but doesn't throw exception. Catch + exception thrown from gdbarch_skip_prologue, and return PC. */ + +extern CORE_ADDR gdbarch_skip_prologue_noexcept (gdbarch *gdbarch, + CORE_ADDR pc) noexcept; + +/* Default implementation of gdbarch_in_indirect_branch_thunk that returns + false. */ +extern bool default_in_indirect_branch_thunk (gdbarch *gdbarch, + CORE_ADDR pc); + +/* Default implementation of gdbarch type_align method. */ +extern ULONGEST default_type_align (struct gdbarch *gdbarch, + struct type *type); + #endif