binutils-gdb/gdb/regcache.h

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/* Cache and manage the values of registers for GDB, the GNU debugger.
* regcache.h: Update copyright. (struct regcache, struct gdbarch): Add opaque declarations. (current_regcache): Declare global variable. (regcache_read, regcache_write): Add gdbarch parameter. (regcache_save, regcache_save_no_passthrough) (regcache_restore, regcache_restore_no_passthrough) (regcache_dup, regcache_dup_no_passthrough) (regcache_cpy, regcache_cpy_no_passthrough) (deprecated_grub_regcache_for_registers) (deprecated_grub_regcache_for_register_valid) (regcache_valid_p): Add function declarations. * regcache.c: Update copyright. (regcache_descr_handle): New global variable. (struct regcache_descr): Define. (init_legacy_regcache_descr, init_regcache_descr): New functions. (regcache_descr, xfree_regcache_descr): New functions. (struct regcache): Define. (regcache_xmalloc, regcache_xfree): New functions. (regcache_cpy, regcache_cpy_no_passthrough): New functions. (regcache_dup, regcache_dup_no_passthrough): New functions. (regcache_valid_p, regcache_read_as_address): New functions. (deprecated_grub_regcache_for_registers): New function. (deprecated_grub_regcache_for_register_valid): New function. (current_regcache): New global variable. (register_buffer): Add regcache parameter. Update calls. (regcache_read, regcache_write): Add regcache parameter. Rewrite. (read_register_gen, write_register_gen): Update register_buffer call. Test for legacy_p instead of gdbarch_register_read_p or gdbarch_register_write_p. (regcache_collect): Update register_buffer call. (build_regcache): Rewrite. Use deprecated grub functions. (regcache_save, regcache_save_no_passthrough): New functions. (regcache_restore, regcache_restore_no_passthrough): New functions. (_initialize_regcache): Create the regcache_data_handle. Swap current_regcache global variable. * sh-tdep.c (sh_pseudo_register_read): Add current_regcache parameter to regcache_read and regcache_write calls. (sh4_register_read): Ditto. (sh64_pseudo_register_read): Ditto. (sh64_register_read): Ditto. (sh_pseudo_register_write): Ditto. (sh4_register_write): Ditto. (sh64_pseudo_register_write): Ditto. (sh64_register_write): Ditto. * defs.h (XCALLOC): Define.
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Copyright (C) 1986, 1987, 1989, 1991, 1994, 1995, 1996, 1998, 2000, 2001,
2002, 2007, 2008 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef REGCACHE_H
#define REGCACHE_H
* regcache.h: Update copyright. (struct regcache, struct gdbarch): Add opaque declarations. (current_regcache): Declare global variable. (regcache_read, regcache_write): Add gdbarch parameter. (regcache_save, regcache_save_no_passthrough) (regcache_restore, regcache_restore_no_passthrough) (regcache_dup, regcache_dup_no_passthrough) (regcache_cpy, regcache_cpy_no_passthrough) (deprecated_grub_regcache_for_registers) (deprecated_grub_regcache_for_register_valid) (regcache_valid_p): Add function declarations. * regcache.c: Update copyright. (regcache_descr_handle): New global variable. (struct regcache_descr): Define. (init_legacy_regcache_descr, init_regcache_descr): New functions. (regcache_descr, xfree_regcache_descr): New functions. (struct regcache): Define. (regcache_xmalloc, regcache_xfree): New functions. (regcache_cpy, regcache_cpy_no_passthrough): New functions. (regcache_dup, regcache_dup_no_passthrough): New functions. (regcache_valid_p, regcache_read_as_address): New functions. (deprecated_grub_regcache_for_registers): New function. (deprecated_grub_regcache_for_register_valid): New function. (current_regcache): New global variable. (register_buffer): Add regcache parameter. Update calls. (regcache_read, regcache_write): Add regcache parameter. Rewrite. (read_register_gen, write_register_gen): Update register_buffer call. Test for legacy_p instead of gdbarch_register_read_p or gdbarch_register_write_p. (regcache_collect): Update register_buffer call. (build_regcache): Rewrite. Use deprecated grub functions. (regcache_save, regcache_save_no_passthrough): New functions. (regcache_restore, regcache_restore_no_passthrough): New functions. (_initialize_regcache): Create the regcache_data_handle. Swap current_regcache global variable. * sh-tdep.c (sh_pseudo_register_read): Add current_regcache parameter to regcache_read and regcache_write calls. (sh4_register_read): Ditto. (sh64_pseudo_register_read): Ditto. (sh64_register_read): Ditto. (sh_pseudo_register_write): Ditto. (sh4_register_write): Ditto. (sh64_pseudo_register_write): Ditto. (sh64_register_write): Ditto. * defs.h (XCALLOC): Define.
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struct regcache;
struct gdbarch;
* regcache.c (struct regcache): Add ptid_t member. (regcache_xmalloc): Initialize it. (regcache_cpy_no_passthrough): Do not refer to current_regcache. (regcache_dup): Likewise. (regcache_dup_no_passthrough): Likewise. (current_regcache): Make static. (registers_ptid): Remove variable. (get_thread_regcache): New function. (get_current_regcache): New function. (registers_changed): Implement by freeing current regcache. (regcache_raw_read): Do not refer to current_regcache. Set inferior_ptid to regcache->ptid while calling target routines. (regcache_raw_write): Likewise. (regcache_raw_supply): Do not refer to current_regcache. (read_pc_pid): Use thread regcache. Do not modify inferior_ptid. (write_pc_pid): Likewise. (build_regcache): Remove. (_initialize_regcache): Do not call DEPRECATED_REGISTER_GDBARCH_SWAP or deprecated_register_gdbarch_swap. Do not initialize registers_ptid. * regcache.h (get_current_regcache): Add prototype. (get_thread_regcache): Likewise. (current_regcache): Remove declaration. * corelow.c (core_open): Replace current_regcache by get_current_regcache (). * frame.c (frame_pop): Likewise. (put_frame_register): Likewise. (get_current_frame, create_new_frame): Likewise. * mi/mi-main.c (mi_cmd_data_write_register_values): Likewise. * stack.c (return_command): Likewise. * infcall.c (call_function_by_hand): Likewise. * infrun.c (resume): Likewise. (save_inferior_status, restore_inferior_status): Likewise. * linux-fork.c (fork_load_infrun_state): Likewise. (fork_save_infrun_state): Likewise. * win32-nat.c (win32_resume): Likewise. * i386fbsd-nat.c (i386fbsd_resume): Likewise. * monitor.c (monitor_wait): Likewise. * remote.c (remote_wait): Likewise. * remote-mips.c (mips_wait): Likewise. * bsd-kvm.c (bsd_kvm_open): Likewise (bsd_kvm_proc_cmd, bsd_kvm_pcb_cmd): Likewise. * fbsd-nat.c (fbsd_make_corefile_notes): Likewise. * i386-linux-nat.c (i386_linux_resume): Likewise. * ia64-linux-nat.c (ia64_linux_insert_watchpoint): Likewise. (ia64_linux_stopped_data_address): Likewise. * frv-tdep.c (frv_fdpic_loadmap_addresses): Likewise. * m32c-tdep.c (m32c_virtual_frame_pointer): Likewise. * mep-tdep.c (current_me_module, current_options): Likewise. * mips-tdep.c (deprecated_mips_set_processor_regs_hack): Likewise. * linux-nat.c (linux_nat_do_thread_registers): Use thread regcache instead of current_regcache. Call target_fetch_registers. (linux_nat_corefile_thread_callback): Update call site. (linux_nat_do_registers): Likewise. * procfs.c (procfs_do_thread_registers): Use thread regcache instead of current_regcache. (procfs_make_note_section): Likewise. * proc-service.c (ps_lgetregs, ps_lsetregs): Likewise. (ps_lgetfpregs, ps_lsetfpregs): Likewise. * sol-thread.c (ps_lgetregs, ps_lsetregs): Likewise. (ps_lgetfpregs, ps_lsetfpregs): Likewise.
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extern struct regcache *get_current_regcache (void);
extern struct regcache *get_thread_regcache (ptid_t ptid);
* regcache.h: Update copyright. (struct regcache, struct gdbarch): Add opaque declarations. (current_regcache): Declare global variable. (regcache_read, regcache_write): Add gdbarch parameter. (regcache_save, regcache_save_no_passthrough) (regcache_restore, regcache_restore_no_passthrough) (regcache_dup, regcache_dup_no_passthrough) (regcache_cpy, regcache_cpy_no_passthrough) (deprecated_grub_regcache_for_registers) (deprecated_grub_regcache_for_register_valid) (regcache_valid_p): Add function declarations. * regcache.c: Update copyright. (regcache_descr_handle): New global variable. (struct regcache_descr): Define. (init_legacy_regcache_descr, init_regcache_descr): New functions. (regcache_descr, xfree_regcache_descr): New functions. (struct regcache): Define. (regcache_xmalloc, regcache_xfree): New functions. (regcache_cpy, regcache_cpy_no_passthrough): New functions. (regcache_dup, regcache_dup_no_passthrough): New functions. (regcache_valid_p, regcache_read_as_address): New functions. (deprecated_grub_regcache_for_registers): New function. (deprecated_grub_regcache_for_register_valid): New function. (current_regcache): New global variable. (register_buffer): Add regcache parameter. Update calls. (regcache_read, regcache_write): Add regcache parameter. Rewrite. (read_register_gen, write_register_gen): Update register_buffer call. Test for legacy_p instead of gdbarch_register_read_p or gdbarch_register_write_p. (regcache_collect): Update register_buffer call. (build_regcache): Rewrite. Use deprecated grub functions. (regcache_save, regcache_save_no_passthrough): New functions. (regcache_restore, regcache_restore_no_passthrough): New functions. (_initialize_regcache): Create the regcache_data_handle. Swap current_regcache global variable. * sh-tdep.c (sh_pseudo_register_read): Add current_regcache parameter to regcache_read and regcache_write calls. (sh4_register_read): Ditto. (sh64_pseudo_register_read): Ditto. (sh64_register_read): Ditto. (sh_pseudo_register_write): Ditto. (sh4_register_write): Ditto. (sh64_pseudo_register_write): Ditto. (sh64_register_write): Ditto. * defs.h (XCALLOC): Define.
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void regcache_xfree (struct regcache *regcache);
struct cleanup *make_cleanup_regcache_xfree (struct regcache *regcache);
* regcache.h: Update copyright. (struct regcache, struct gdbarch): Add opaque declarations. (current_regcache): Declare global variable. (regcache_read, regcache_write): Add gdbarch parameter. (regcache_save, regcache_save_no_passthrough) (regcache_restore, regcache_restore_no_passthrough) (regcache_dup, regcache_dup_no_passthrough) (regcache_cpy, regcache_cpy_no_passthrough) (deprecated_grub_regcache_for_registers) (deprecated_grub_regcache_for_register_valid) (regcache_valid_p): Add function declarations. * regcache.c: Update copyright. (regcache_descr_handle): New global variable. (struct regcache_descr): Define. (init_legacy_regcache_descr, init_regcache_descr): New functions. (regcache_descr, xfree_regcache_descr): New functions. (struct regcache): Define. (regcache_xmalloc, regcache_xfree): New functions. (regcache_cpy, regcache_cpy_no_passthrough): New functions. (regcache_dup, regcache_dup_no_passthrough): New functions. (regcache_valid_p, regcache_read_as_address): New functions. (deprecated_grub_regcache_for_registers): New function. (deprecated_grub_regcache_for_register_valid): New function. (current_regcache): New global variable. (register_buffer): Add regcache parameter. Update calls. (regcache_read, regcache_write): Add regcache parameter. Rewrite. (read_register_gen, write_register_gen): Update register_buffer call. Test for legacy_p instead of gdbarch_register_read_p or gdbarch_register_write_p. (regcache_collect): Update register_buffer call. (build_regcache): Rewrite. Use deprecated grub functions. (regcache_save, regcache_save_no_passthrough): New functions. (regcache_restore, regcache_restore_no_passthrough): New functions. (_initialize_regcache): Create the regcache_data_handle. Swap current_regcache global variable. * sh-tdep.c (sh_pseudo_register_read): Add current_regcache parameter to regcache_read and regcache_write calls. (sh4_register_read): Ditto. (sh64_pseudo_register_read): Ditto. (sh64_register_read): Ditto. (sh_pseudo_register_write): Ditto. (sh4_register_write): Ditto. (sh64_pseudo_register_write): Ditto. (sh64_register_write): Ditto. * defs.h (XCALLOC): Define.
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struct regcache *regcache_xmalloc (struct gdbarch *gdbarch);
/* Return REGCACHE's architecture. */
extern struct gdbarch *get_regcache_arch (const struct regcache *regcache);
/* Transfer a raw register [0..NUM_REGS) between core-gdb and the
regcache. */
void regcache_raw_read (struct regcache *regcache, int rawnum, gdb_byte *buf);
void regcache_raw_write (struct regcache *regcache, int rawnum,
const gdb_byte *buf);
extern void regcache_raw_read_signed (struct regcache *regcache,
int regnum, LONGEST *val);
extern void regcache_raw_read_unsigned (struct regcache *regcache,
int regnum, ULONGEST *val);
extern void regcache_raw_write_signed (struct regcache *regcache,
int regnum, LONGEST val);
extern void regcache_raw_write_unsigned (struct regcache *regcache,
int regnum, ULONGEST val);
/* Partial transfer of a raw registers. These perform read, modify,
write style operations. */
void regcache_raw_read_part (struct regcache *regcache, int regnum,
int offset, int len, gdb_byte *buf);
void regcache_raw_write_part (struct regcache *regcache, int regnum,
int offset, int len, const gdb_byte *buf);
int regcache_valid_p (const struct regcache *regcache, int regnum);
void regcache_invalidate (struct regcache *regcache, int regnum);
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/* Transfer a cooked register [0..NUM_REGS+NUM_PSEUDO_REGS). */
void regcache_cooked_read (struct regcache *regcache, int rawnum,
gdb_byte *buf);
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void regcache_cooked_write (struct regcache *regcache, int rawnum,
const gdb_byte *buf);
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/* NOTE: cagney/2002-08-13: At present GDB has no reliable mechanism
for indicating when a ``cooked'' register was constructed from
invalid or unavailable ``raw'' registers. One fairly easy way of
adding such a mechanism would be for the cooked functions to return
a register valid indication. Given the possibility of such a
change, the extract functions below use a reference parameter,
rather than a function result. */
/* Read a register as a signed/unsigned quantity. */
extern void regcache_cooked_read_signed (struct regcache *regcache,
int regnum, LONGEST *val);
extern void regcache_cooked_read_unsigned (struct regcache *regcache,
int regnum, ULONGEST *val);
extern void regcache_cooked_write_signed (struct regcache *regcache,
int regnum, LONGEST val);
extern void regcache_cooked_write_unsigned (struct regcache *regcache,
int regnum, ULONGEST val);
/* Partial transfer of a cooked register. These perform read, modify,
write style operations. */
void regcache_cooked_read_part (struct regcache *regcache, int regnum,
int offset, int len, gdb_byte *buf);
void regcache_cooked_write_part (struct regcache *regcache, int regnum,
int offset, int len, const gdb_byte *buf);
/* Transfer a raw register [0..NUM_REGS) between the regcache and the
target. These functions are called by the target in response to a
target_fetch_registers() or target_store_registers(). */
extern void regcache_raw_supply (struct regcache *regcache,
int regnum, const void *buf);
extern void regcache_raw_collect (const struct regcache *regcache,
int regnum, void *buf);
/* The type of a register. This function is slightly more efficient
then its gdbarch vector counterpart since it returns a precomputed
value stored in a table. */
extern struct type *register_type (struct gdbarch *gdbarch, int regnum);
/* Return the size of register REGNUM. All registers should have only
one size. */
extern int register_size (struct gdbarch *gdbarch, int regnum);
/* Save/restore a register cache. The set of registers saved /
restored into the DST regcache determined by the save_reggroup /
restore_reggroup respectively. COOKED_READ returns zero iff the
register's value can't be returned. */
typedef int (regcache_cooked_read_ftype) (void *src, int regnum,
gdb_byte *buf);
extern void regcache_save (struct regcache *dst,
regcache_cooked_read_ftype *cooked_read,
void *cooked_read_context);
extern void regcache_restore (struct regcache *dst,
regcache_cooked_read_ftype *cooked_read,
void *cooked_read_context);
/* Copy/duplicate the contents of a register cache. By default, the
operation is pass-through. Writes to DST and reads from SRC will
go through to the target.
The ``cpy'' functions can not have overlapping SRC and DST buffers.
* regcache.h: Update copyright. (struct regcache, struct gdbarch): Add opaque declarations. (current_regcache): Declare global variable. (regcache_read, regcache_write): Add gdbarch parameter. (regcache_save, regcache_save_no_passthrough) (regcache_restore, regcache_restore_no_passthrough) (regcache_dup, regcache_dup_no_passthrough) (regcache_cpy, regcache_cpy_no_passthrough) (deprecated_grub_regcache_for_registers) (deprecated_grub_regcache_for_register_valid) (regcache_valid_p): Add function declarations. * regcache.c: Update copyright. (regcache_descr_handle): New global variable. (struct regcache_descr): Define. (init_legacy_regcache_descr, init_regcache_descr): New functions. (regcache_descr, xfree_regcache_descr): New functions. (struct regcache): Define. (regcache_xmalloc, regcache_xfree): New functions. (regcache_cpy, regcache_cpy_no_passthrough): New functions. (regcache_dup, regcache_dup_no_passthrough): New functions. (regcache_valid_p, regcache_read_as_address): New functions. (deprecated_grub_regcache_for_registers): New function. (deprecated_grub_regcache_for_register_valid): New function. (current_regcache): New global variable. (register_buffer): Add regcache parameter. Update calls. (regcache_read, regcache_write): Add regcache parameter. Rewrite. (read_register_gen, write_register_gen): Update register_buffer call. Test for legacy_p instead of gdbarch_register_read_p or gdbarch_register_write_p. (regcache_collect): Update register_buffer call. (build_regcache): Rewrite. Use deprecated grub functions. (regcache_save, regcache_save_no_passthrough): New functions. (regcache_restore, regcache_restore_no_passthrough): New functions. (_initialize_regcache): Create the regcache_data_handle. Swap current_regcache global variable. * sh-tdep.c (sh_pseudo_register_read): Add current_regcache parameter to regcache_read and regcache_write calls. (sh4_register_read): Ditto. (sh64_pseudo_register_read): Ditto. (sh64_register_read): Ditto. (sh_pseudo_register_write): Ditto. (sh4_register_write): Ditto. (sh64_pseudo_register_write): Ditto. (sh64_register_write): Ditto. * defs.h (XCALLOC): Define.
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``no passthrough'' versions do not go through to the target. They
only transfer values already in the cache. */
* regcache.h: Update copyright. (struct regcache, struct gdbarch): Add opaque declarations. (current_regcache): Declare global variable. (regcache_read, regcache_write): Add gdbarch parameter. (regcache_save, regcache_save_no_passthrough) (regcache_restore, regcache_restore_no_passthrough) (regcache_dup, regcache_dup_no_passthrough) (regcache_cpy, regcache_cpy_no_passthrough) (deprecated_grub_regcache_for_registers) (deprecated_grub_regcache_for_register_valid) (regcache_valid_p): Add function declarations. * regcache.c: Update copyright. (regcache_descr_handle): New global variable. (struct regcache_descr): Define. (init_legacy_regcache_descr, init_regcache_descr): New functions. (regcache_descr, xfree_regcache_descr): New functions. (struct regcache): Define. (regcache_xmalloc, regcache_xfree): New functions. (regcache_cpy, regcache_cpy_no_passthrough): New functions. (regcache_dup, regcache_dup_no_passthrough): New functions. (regcache_valid_p, regcache_read_as_address): New functions. (deprecated_grub_regcache_for_registers): New function. (deprecated_grub_regcache_for_register_valid): New function. (current_regcache): New global variable. (register_buffer): Add regcache parameter. Update calls. (regcache_read, regcache_write): Add regcache parameter. Rewrite. (read_register_gen, write_register_gen): Update register_buffer call. Test for legacy_p instead of gdbarch_register_read_p or gdbarch_register_write_p. (regcache_collect): Update register_buffer call. (build_regcache): Rewrite. Use deprecated grub functions. (regcache_save, regcache_save_no_passthrough): New functions. (regcache_restore, regcache_restore_no_passthrough): New functions. (_initialize_regcache): Create the regcache_data_handle. Swap current_regcache global variable. * sh-tdep.c (sh_pseudo_register_read): Add current_regcache parameter to regcache_read and regcache_write calls. (sh4_register_read): Ditto. (sh64_pseudo_register_read): Ditto. (sh64_register_read): Ditto. (sh_pseudo_register_write): Ditto. (sh4_register_write): Ditto. (sh64_pseudo_register_write): Ditto. (sh64_register_write): Ditto. * defs.h (XCALLOC): Define.
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extern struct regcache *regcache_dup (struct regcache *regcache);
extern struct regcache *regcache_dup_no_passthrough (struct regcache *regcache);
extern void regcache_cpy (struct regcache *dest, struct regcache *src);
extern void regcache_cpy_no_passthrough (struct regcache *dest, struct regcache *src);
extern void registers_changed (void);
#endif /* REGCACHE_H */