X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fgdbarch.h;h=7e185241872d350c7bcf46d496b36d8153a11fd0;hb=73923d7eedc7ab52144308ef7e9c12cbe4341bca;hp=b563f8d165aafcaa6e1a011c7107e1ccf15884b5;hpb=a616bb94509c22c96ae8bf1432ec28a7f3e31778;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h index b563f8d165..7e18524187 100644 --- a/gdb/gdbarch.h +++ b/gdb/gdbarch.h @@ -3,7 +3,7 @@ /* Dynamic architecture support for GDB, the GNU debugger. - Copyright (C) 1998-2018 Free Software Foundation, Inc. + Copyright (C) 1998-2019 Free Software Foundation, Inc. This file is part of GDB. @@ -102,6 +102,29 @@ typedef void (iterate_over_regset_sections_cb) (const char *sect_name, int supply_size, int collect_size, const struct regset *regset, const char *human_name, void *cb_data); +/* For a function call, does the function return a value using a + normal value return or a structure return - passing a hidden + argument pointing to storage. For the latter, there are two + cases: language-mandated structure return and target ABI + structure return. */ + +enum function_call_return_method +{ + /* Standard value return. */ + return_method_normal = 0, + + /* Language ABI structure return. This is handled + by passing the return location as the first parameter to + the function, even preceding "this". */ + return_method_hidden_param, + + /* Target ABI struct return. This is target-specific; for instance, + on ia64 the first argument is passed in out0 but the hidden + structure return pointer would normally be passed in r8. */ + return_method_struct, +}; + + /* The following are pre-initialized by GDBARCH. */ @@ -380,7 +403,14 @@ typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, in extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr); extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type); -extern int gdbarch_dummy_id_p (struct gdbarch *gdbarch); +/* Generate a dummy frame_id for THIS_FRAME assuming that the frame is + a dummy frame. A dummy frame is created before an inferior call, + the frame_id returned here must match the frame_id that was built + for the inferior call. Usually this means the returned frame_id's + stack address should match the address returned by + gdbarch_push_dummy_call, and the returned frame_id's code address + should match the address at which the breakpoint was set in the dummy + frame. */ typedef struct frame_id (gdbarch_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *this_frame); extern struct frame_id gdbarch_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame); @@ -394,8 +424,8 @@ extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int depre extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch); -typedef CORE_ADDR (gdbarch_push_dummy_call_ftype) (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr); -extern CORE_ADDR gdbarch_push_dummy_call (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr); +typedef CORE_ADDR (gdbarch_push_dummy_call_ftype) (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, function_call_return_method return_method, CORE_ADDR struct_addr); +extern CORE_ADDR gdbarch_push_dummy_call (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, function_call_return_method return_method, CORE_ADDR struct_addr); extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call); extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch); @@ -619,17 +649,25 @@ typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile); extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address); +/* Return the thread-local address at OFFSET in the thread-local + storage for the thread PTID and the shared library or executable + file given by LM_ADDR. If that block of thread-local storage hasn't + been allocated yet, this function may throw an error. LM_ADDR may + be zero for statically linked multithreaded inferiors. */ + +extern int gdbarch_get_thread_local_address_p (struct gdbarch *gdbarch); + +typedef CORE_ADDR (gdbarch_get_thread_local_address_ftype) (struct gdbarch *gdbarch, ptid_t ptid, CORE_ADDR lm_addr, CORE_ADDR offset); +extern CORE_ADDR gdbarch_get_thread_local_address (struct gdbarch *gdbarch, ptid_t ptid, CORE_ADDR lm_addr, CORE_ADDR offset); +extern void set_gdbarch_get_thread_local_address (struct gdbarch *gdbarch, gdbarch_get_thread_local_address_ftype *get_thread_local_address); + extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch); extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip); -extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch); - typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame); extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame); extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc); -extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch); - typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame); extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame); extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp); @@ -818,6 +856,9 @@ extern void set_gdbarch_adjust_dwarf2_line (struct gdbarch *gdbarch, gdbarch_adj extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch); extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint); +/* See comment in target.h about continuable, steppable and + non-steppable watchpoints. */ + extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch); extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint); @@ -918,8 +959,8 @@ extern void set_gdbarch_core_xfer_shared_libraries_aix (struct gdbarch *gdbarch, extern int gdbarch_core_pid_to_str_p (struct gdbarch *gdbarch); -typedef const char * (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid); -extern const char * gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid); +typedef std::string (gdbarch_core_pid_to_str_ftype) (struct gdbarch *gdbarch, ptid_t ptid); +extern std::string gdbarch_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid); extern void set_gdbarch_core_pid_to_str (struct gdbarch *gdbarch, gdbarch_core_pid_to_str_ftype *core_pid_to_str); /* How the core target extracts the name of a thread from a core file. */ @@ -1560,15 +1601,15 @@ extern void set_gdbarch_disassembler_options (struct gdbarch *gdbarch, char ** d extern const disasm_options_and_args_t * gdbarch_valid_disassembler_options (struct gdbarch *gdbarch); extern void set_gdbarch_valid_disassembler_options (struct gdbarch *gdbarch, const disasm_options_and_args_t * valid_disassembler_options); -/* Type alignment. */ +/* Type alignment override method. Return the architecture specific + alignment required for TYPE. If there is no special handling + required for TYPE then return the value 0, GDB will then apply the + default rules as laid out in gdbtypes.c:type_align. */ typedef ULONGEST (gdbarch_type_align_ftype) (struct gdbarch *gdbarch, struct type *type); extern ULONGEST gdbarch_type_align (struct gdbarch *gdbarch, struct type *type); extern void set_gdbarch_type_align (struct gdbarch *gdbarch, gdbarch_type_align_ftype *type_align); -/* Definition for an unknown syscall, used basically in error-cases. */ -#define UNKNOWN_SYSCALL (-1) - extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch); @@ -1803,4 +1844,12 @@ extern unsigned int gdbarch_debug; extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file); +/* Return the number of cooked registers (raw + pseudo) for ARCH. */ + +static inline int +gdbarch_num_cooked_regs (gdbarch *arch) +{ + return gdbarch_num_regs (arch) + gdbarch_num_pseudo_regs (arch); +} + #endif