X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fgdbarch.h;h=0df1fd16926391b1f7dfab1810f5dfabf1e6fe2a;hb=055303e28f70880f7b2c3e44df0ba7646fc85cf8;hp=d59e14905a97573b3af36af2a200da148356d01e;hpb=ea480a306d46efe3dd1839618137f0e73a80e9b3;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h index d59e14905a..0df1fd1692 100644 --- a/gdb/gdbarch.h +++ b/gdb/gdbarch.h @@ -3,7 +3,7 @@ /* Dynamic architecture support for GDB, the GNU debugger. - Copyright (C) 1998-2017 Free Software Foundation, Inc. + Copyright (C) 1998-2018 Free Software Foundation, Inc. This file is part of GDB. @@ -35,8 +35,10 @@ #ifndef GDBARCH_H #define GDBARCH_H +#include #include "frame.h" #include "dis-asm.h" +#include "gdb_obstack.h" struct floatformat; struct ui_file; @@ -52,7 +54,6 @@ struct target_ops; struct obstack; struct bp_target_info; struct target_desc; -struct objfile; struct symbol; struct displaced_step_closure; struct syscall; @@ -61,7 +62,6 @@ struct axs_value; struct stap_parse_info; struct parser_state; struct ravenscar_arch_ops; -struct elf_internal_linux_prpsinfo; struct mem_range; struct syscalls_info; struct thread_info; @@ -127,11 +127,7 @@ extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch); extern int gdbarch_bits_big_endian (struct gdbarch *gdbarch); extern void set_gdbarch_bits_big_endian (struct gdbarch *gdbarch, int bits_big_endian); -/* Number of bits in a char or unsigned char for the target machine. - Just like CHAR_BIT in but describes the target machine. - v;TARGET_CHAR_BIT;int;char_bit;;;;8 * sizeof (char);8;;0; - - Number of bits in a short or unsigned short for the target machine. */ +/* Number of bits in a short or unsigned short for the target machine. */ extern int gdbarch_short_bit (struct gdbarch *gdbarch); extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit); @@ -152,12 +148,6 @@ extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit); extern int gdbarch_long_long_bit (struct gdbarch *gdbarch); extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit); -/* Alignment of a long long or unsigned long long for the target - machine. */ - -extern int gdbarch_long_long_align_bit (struct gdbarch *gdbarch); -extern void set_gdbarch_long_long_align_bit (struct gdbarch *gdbarch, int long_long_align_bit); - /* The ABI default bit-size and format for "half", "float", "double", and "long double". These bit/format pairs should eventually be combined into a single object. For the moment, just initialize them as a pair. @@ -250,8 +240,8 @@ extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed); extern int gdbarch_read_pc_p (struct gdbarch *gdbarch); -typedef CORE_ADDR (gdbarch_read_pc_ftype) (struct regcache *regcache); -extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, struct regcache *regcache); +typedef CORE_ADDR (gdbarch_read_pc_ftype) (readable_regcache *regcache); +extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, readable_regcache *regcache); extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc); extern int gdbarch_write_pc_p (struct gdbarch *gdbarch); @@ -270,8 +260,8 @@ extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_ extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch); -typedef enum register_status (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf); -extern enum register_status gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf); +typedef enum register_status (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, readable_regcache *regcache, int cookednum, gdb_byte *buf); +extern enum register_status gdbarch_pseudo_register_read (struct gdbarch *gdbarch, readable_regcache *regcache, int cookednum, gdb_byte *buf); extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read); /* Read a register into a new struct value. If the register is wholly @@ -281,8 +271,8 @@ extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_p extern int gdbarch_pseudo_register_read_value_p (struct gdbarch *gdbarch); -typedef struct value * (gdbarch_pseudo_register_read_value_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum); -extern struct value * gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum); +typedef struct value * (gdbarch_pseudo_register_read_value_ftype) (struct gdbarch *gdbarch, readable_regcache *regcache, int cookednum); +extern struct value * gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, readable_regcache *regcache, int cookednum); extern void set_gdbarch_pseudo_register_read_value (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_value_ftype *pseudo_register_read_value); extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch); @@ -682,6 +672,14 @@ typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (struct gdbarch *gdbarch, COR extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr); extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove); +/* On some machines, not all bits of an address word are significant. + For example, on AArch64, the top bits of an address known as the "tag" + are ignored by the kernel, the hardware, etc. and can be regarded as + additional data associated with the address. */ + +extern int gdbarch_significant_addr_bit (struct gdbarch *gdbarch); +extern void set_gdbarch_significant_addr_bit (struct gdbarch *gdbarch, int significant_addr_bit); + /* FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if the target needs software single step. An ISA method to implement it. @@ -700,8 +698,8 @@ extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_ extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch); -typedef VEC (CORE_ADDR) * (gdbarch_software_single_step_ftype) (struct regcache *regcache); -extern VEC (CORE_ADDR) * gdbarch_software_single_step (struct gdbarch *gdbarch, struct regcache *regcache); +typedef std::vector (gdbarch_software_single_step_ftype) (struct regcache *regcache); +extern std::vector gdbarch_software_single_step (struct gdbarch *gdbarch, struct regcache *regcache); extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step); /* Return non-zero if the processor is executing a delay slot and a @@ -738,6 +736,12 @@ typedef int (gdbarch_in_solib_return_trampoline_ftype) (struct gdbarch *gdbarch, extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, const char *name); extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline); +/* Return true if PC lies inside an indirect branch thunk. */ + +typedef bool (gdbarch_in_indirect_branch_thunk_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc); +extern bool gdbarch_in_indirect_branch_thunk (struct gdbarch *gdbarch, CORE_ADDR pc); +extern void set_gdbarch_in_indirect_branch_thunk (struct gdbarch *gdbarch, gdbarch_in_indirect_branch_thunk_ftype *in_indirect_branch_thunk); + /* A target might have problems with watchpoints as soon as the stack frame of the current function has been destroyed. This mostly happens as the first action in a function's epilogue. stack_frame_destroyed_p() @@ -879,18 +883,6 @@ typedef char * (gdbarch_make_corefile_notes_ftype) (struct gdbarch *gdbarch, bfd extern char * gdbarch_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size); extern void set_gdbarch_make_corefile_notes (struct gdbarch *gdbarch, gdbarch_make_corefile_notes_ftype *make_corefile_notes); -/* The elfcore writer hook to use to write Linux prpsinfo notes to core - files. Most Linux architectures use the same prpsinfo32 or - prpsinfo64 layouts, and so won't need to provide this hook, as we - call the Linux generic routines in bfd to write prpsinfo notes by - default. */ - -extern int gdbarch_elfcore_write_linux_prpsinfo_p (struct gdbarch *gdbarch); - -typedef char * (gdbarch_elfcore_write_linux_prpsinfo_ftype) (bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info); -extern char * gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch *gdbarch, bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info); -extern void set_gdbarch_elfcore_write_linux_prpsinfo (struct gdbarch *gdbarch, gdbarch_elfcore_write_linux_prpsinfo_ftype *elfcore_write_linux_prpsinfo); - /* Find core file memory regions */ extern int gdbarch_find_memory_regions_p (struct gdbarch *gdbarch); @@ -936,6 +928,16 @@ typedef const char * (gdbarch_core_thread_name_ftype) (struct gdbarch *gdbarch, extern const char * gdbarch_core_thread_name (struct gdbarch *gdbarch, struct thread_info *thr); extern void set_gdbarch_core_thread_name (struct gdbarch *gdbarch, gdbarch_core_thread_name_ftype *core_thread_name); +/* Read offset OFFSET of TARGET_OBJECT_SIGNAL_INFO signal information + from core file into buffer READBUF with length LEN. Return the number + of bytes read (zero indicates EOF, a negative value indicates failure). */ + +extern int gdbarch_core_xfer_siginfo_p (struct gdbarch *gdbarch); + +typedef LONGEST (gdbarch_core_xfer_siginfo_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len); +extern LONGEST gdbarch_core_xfer_siginfo (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, ULONGEST len); +extern void set_gdbarch_core_xfer_siginfo (struct gdbarch *gdbarch, gdbarch_core_xfer_siginfo_ftype *core_xfer_siginfo); + /* BFD target to use when generating a core file. */ extern int gdbarch_gcore_bfd_target_p (struct gdbarch *gdbarch); @@ -991,10 +993,6 @@ extern void set_gdbarch_max_insn_length (struct gdbarch *gdbarch, ULONGEST max_i If you do not provide this function, GDB assumes that the architecture does not support displaced stepping. - If your architecture doesn't need to adjust instructions before - single-stepping them, consider using simple_displaced_step_copy_insn - here. - If the instruction cannot execute out of line, return NULL. The core falls back to stepping past the instruction in-line instead in that case. */ @@ -1042,21 +1040,6 @@ typedef void (gdbarch_displaced_step_fixup_ftype) (struct gdbarch *gdbarch, stru extern void gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs); extern void set_gdbarch_displaced_step_fixup (struct gdbarch *gdbarch, gdbarch_displaced_step_fixup_ftype *displaced_step_fixup); -/* Free a closure returned by gdbarch_displaced_step_copy_insn. - - If you provide gdbarch_displaced_step_copy_insn, you must provide - this function as well. - - If your architecture uses closures that don't need to be freed, then - you can use simple_displaced_step_free_closure here. - - For a general explanation of displaced stepping and how GDB uses it, - see the comments in infrun.c. */ - -typedef void (gdbarch_displaced_step_free_closure_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure); -extern void gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, struct displaced_step_closure *closure); -extern void set_gdbarch_displaced_step_free_closure (struct gdbarch *gdbarch, gdbarch_displaced_step_free_closure_ftype *displaced_step_free_closure); - /* Return the address of an appropriate place to put displaced instructions while we step over them. There need only be one such place, since we're only stepping one thread over a breakpoint at a @@ -1185,8 +1168,8 @@ extern void set_gdbarch_record_special_symbol (struct gdbarch *gdbarch, gdbarch_ extern int gdbarch_get_syscall_number_p (struct gdbarch *gdbarch); -typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, ptid_t ptid); -extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, ptid_t ptid); +typedef LONGEST (gdbarch_get_syscall_number_ftype) (struct gdbarch *gdbarch, thread_info *thread); +extern LONGEST gdbarch_get_syscall_number (struct gdbarch *gdbarch, thread_info *thread); extern void set_gdbarch_get_syscall_number (struct gdbarch *gdbarch, gdbarch_get_syscall_number_ftype *get_syscall_number); /* The filename of the XML syscall for this architecture. */ @@ -1384,8 +1367,8 @@ extern void set_gdbarch_has_shared_address_space (struct gdbarch *gdbarch, gdbar /* True if a fast tracepoint can be set at an address. */ -typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, char **msg); -extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, char **msg); +typedef int (gdbarch_fast_tracepoint_valid_at_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, std::string *msg); +extern int gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, CORE_ADDR addr, std::string *msg); extern void set_gdbarch_fast_tracepoint_valid_at (struct gdbarch *gdbarch, gdbarch_fast_tracepoint_valid_at_ftype *fast_tracepoint_valid_at); /* Guess register state based on tracepoint location. Used for tracepoints @@ -1566,11 +1549,20 @@ extern void set_gdbarch_addressable_memory_unit_size (struct gdbarch *gdbarch, g /* Functions for allowing a target to modify its disassembler options. */ +extern const char * gdbarch_disassembler_options_implicit (struct gdbarch *gdbarch); +extern void set_gdbarch_disassembler_options_implicit (struct gdbarch *gdbarch, const char * disassembler_options_implicit); + extern char ** gdbarch_disassembler_options (struct gdbarch *gdbarch); extern void set_gdbarch_disassembler_options (struct gdbarch *gdbarch, char ** disassembler_options); -extern const disasm_options_t * gdbarch_valid_disassembler_options (struct gdbarch *gdbarch); -extern void set_gdbarch_valid_disassembler_options (struct gdbarch *gdbarch, const disasm_options_t * valid_disassembler_options); +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. */ + +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) @@ -1655,7 +1647,21 @@ struct gdbarch_info bfd *abfd; /* Use default: NULL (ZERO). */ - void *tdep_info; + union + { + /* Architecture-specific information. The generic form for targets + that have extra requirements. */ + struct gdbarch_tdep_info *tdep_info; + + /* Architecture-specific target description data. Numerous targets + need only this, so give them an easy way to hold it. */ + struct tdesc_arch_data *tdesc_data; + + /* SPU file system ID. This is a single integer, so using the + generic form would only complicate code. Other targets may + reuse this member if suitable. */ + int *id; + }; /* Use default: GDB_OSABI_UNINITIALIZED (-1). */ enum gdb_osabi osabi; @@ -1703,14 +1709,17 @@ extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gd extern void gdbarch_free (struct gdbarch *); +/* Get the obstack owned by ARCH. */ + +extern obstack *gdbarch_obstack (gdbarch *arch); /* Helper function. Allocate memory from the ``struct gdbarch'' obstack. The memory is freed when the corresponding architecture is also freed. */ -extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size); -#define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE))) -#define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE))) +#define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) obstack_calloc (gdbarch_obstack ((GDBARCH)), (NR)) + +#define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) obstack_zalloc (gdbarch_obstack ((GDBARCH))) /* Duplicate STRING, returning an equivalent string that's allocated on the obstack associated with GDBARCH. The string is freed when the corresponding