Move register_dump to regcache-dump.c
gdb: 2018-02-21 Yao Qi <yao.qi@linaro.org> * Makefile.in (COMMON_SFILES): Add regcache-dump.c * regcache-dump.c: New file. * regcache.c: Move register_dump to regcache-dump.c. (maintenance_print_registers): Likewise. (maintenance_print_raw_registers): Likewise. (maintenance_print_cooked_registers): Likewise. (maintenance_print_register_groups): Likewise. (maintenance_print_remote_registers): Likewise. (_initialize_regcache): Likewise. * regcache.h (register_dump): Moved from regcache.c.
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Yao Qi
parent
796bb02641
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4c74fe6b84
5 changed files with 462 additions and 419 deletions
335
gdb/regcache-dump.c
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335
gdb/regcache-dump.c
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/* Copyright (C) 1986-2017 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "gdbcmd.h"
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#include "regcache.h"
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#include "common/def-vector.h"
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#include "valprint.h"
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#include "remote.h"
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#include "reggroups.h"
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#include "target.h"
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/* Dump registers from regcache, used for dumping raw registers and
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cooked registers. */
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class register_dump_regcache : public register_dump
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{
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public:
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register_dump_regcache (regcache *regcache, bool dump_pseudo)
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: register_dump (regcache->arch ()), m_regcache (regcache),
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m_dump_pseudo (dump_pseudo)
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{
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}
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protected:
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void dump_reg (ui_file *file, int regnum) override
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{
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if (regnum < 0)
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{
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if (m_dump_pseudo)
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fprintf_unfiltered (file, "Cooked value");
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else
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fprintf_unfiltered (file, "Raw value");
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}
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else
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{
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if (regnum < gdbarch_num_regs (m_gdbarch) || m_dump_pseudo)
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{
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auto size = register_size (m_gdbarch, regnum);
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if (size == 0)
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return;
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gdb::def_vector<gdb_byte> buf (size);
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auto status = m_regcache->cooked_read (regnum, buf.data ());
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if (status == REG_UNKNOWN)
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fprintf_unfiltered (file, "<invalid>");
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else if (status == REG_UNAVAILABLE)
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fprintf_unfiltered (file, "<unavailable>");
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else
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{
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print_hex_chars (file, buf.data (), size,
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gdbarch_byte_order (m_gdbarch), true);
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}
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}
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else
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{
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/* Just print "<cooked>" for pseudo register when
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regcache_dump_raw. */
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fprintf_unfiltered (file, "<cooked>");
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}
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}
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}
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private:
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regcache *m_regcache;
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/* Dump pseudo registers or not. */
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const bool m_dump_pseudo;
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};
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/* Dump from reg_buffer, used when there is no thread or
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registers. */
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class register_dump_reg_buffer : public register_dump, reg_buffer
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{
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public:
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register_dump_reg_buffer (gdbarch *gdbarch, bool dump_pseudo)
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: register_dump (gdbarch), reg_buffer (gdbarch, dump_pseudo)
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{
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}
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protected:
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void dump_reg (ui_file *file, int regnum) override
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{
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if (regnum < 0)
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{
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if (m_has_pseudo)
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fprintf_unfiltered (file, "Cooked value");
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else
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fprintf_unfiltered (file, "Raw value");
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}
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else
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{
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if (regnum < gdbarch_num_regs (m_gdbarch) || m_has_pseudo)
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{
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auto size = register_size (m_gdbarch, regnum);
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if (size == 0)
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return;
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auto status = get_register_status (regnum);
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gdb_assert (status != REG_VALID);
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if (status == REG_UNKNOWN)
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fprintf_unfiltered (file, "<invalid>");
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else
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fprintf_unfiltered (file, "<unavailable>");
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}
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else
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{
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/* Just print "<cooked>" for pseudo register when
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regcache_dump_raw. */
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fprintf_unfiltered (file, "<cooked>");
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}
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}
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}
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};
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/* For "maint print registers". */
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class register_dump_none : public register_dump
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{
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public:
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register_dump_none (gdbarch *arch)
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: register_dump (arch)
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{}
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protected:
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void dump_reg (ui_file *file, int regnum) override
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{}
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};
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/* For "maint print remote-registers". */
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class register_dump_remote : public register_dump
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{
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public:
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register_dump_remote (gdbarch *arch)
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: register_dump (arch)
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{}
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protected:
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void dump_reg (ui_file *file, int regnum) override
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{
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if (regnum < 0)
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{
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fprintf_unfiltered (file, "Rmt Nr g/G Offset");
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}
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else if (regnum < gdbarch_num_regs (m_gdbarch))
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{
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int pnum, poffset;
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if (remote_register_number_and_offset (m_gdbarch, regnum,
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&pnum, &poffset))
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fprintf_unfiltered (file, "%7d %11d", pnum, poffset);
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}
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}
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};
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/* For "maint print register-groups". */
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class register_dump_groups : public register_dump
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{
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public:
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register_dump_groups (gdbarch *arch)
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: register_dump (arch)
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{}
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protected:
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void dump_reg (ui_file *file, int regnum) override
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{
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if (regnum < 0)
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fprintf_unfiltered (file, "Groups");
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else
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{
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const char *sep = "";
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struct reggroup *group;
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for (group = reggroup_next (m_gdbarch, NULL);
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group != NULL;
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group = reggroup_next (m_gdbarch, group))
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{
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if (gdbarch_register_reggroup_p (m_gdbarch, regnum, group))
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{
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fprintf_unfiltered (file,
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"%s%s", sep, reggroup_name (group));
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sep = ",";
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}
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}
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}
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}
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};
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enum regcache_dump_what
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{
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regcache_dump_none, regcache_dump_raw,
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regcache_dump_cooked, regcache_dump_groups,
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regcache_dump_remote
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};
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static void
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regcache_print (const char *args, enum regcache_dump_what what_to_dump)
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{
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/* Where to send output. */
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stdio_file file;
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ui_file *out;
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if (args == NULL)
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out = gdb_stdout;
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else
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{
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if (!file.open (args, "w"))
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perror_with_name (_("maintenance print architecture"));
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out = &file;
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}
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std::unique_ptr<register_dump> dump;
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std::unique_ptr<regcache> regs;
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gdbarch *gdbarch;
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if (target_has_registers)
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gdbarch = get_current_regcache ()->arch ();
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else
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gdbarch = target_gdbarch ();
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switch (what_to_dump)
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{
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case regcache_dump_none:
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dump.reset (new register_dump_none (gdbarch));
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break;
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case regcache_dump_remote:
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dump.reset (new register_dump_remote (gdbarch));
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break;
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case regcache_dump_groups:
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dump.reset (new register_dump_groups (gdbarch));
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break;
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case regcache_dump_raw:
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case regcache_dump_cooked:
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{
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auto dump_pseudo = (what_to_dump == regcache_dump_cooked);
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if (target_has_registers)
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dump.reset (new register_dump_regcache (get_current_regcache (),
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dump_pseudo));
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else
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{
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/* For the benefit of "maint print registers" & co when
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debugging an executable, allow dumping a regcache even when
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there is no thread selected / no registers. */
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dump.reset (new register_dump_reg_buffer (target_gdbarch (),
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dump_pseudo));
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}
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}
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break;
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}
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dump->dump (out);
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}
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static void
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maintenance_print_registers (const char *args, int from_tty)
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{
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regcache_print (args, regcache_dump_none);
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}
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static void
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maintenance_print_raw_registers (const char *args, int from_tty)
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{
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regcache_print (args, regcache_dump_raw);
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}
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static void
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maintenance_print_cooked_registers (const char *args, int from_tty)
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{
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regcache_print (args, regcache_dump_cooked);
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}
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static void
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maintenance_print_register_groups (const char *args, int from_tty)
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{
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regcache_print (args, regcache_dump_groups);
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}
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static void
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maintenance_print_remote_registers (const char *args, int from_tty)
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{
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regcache_print (args, regcache_dump_remote);
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}
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void
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_initialize_regcache_dump (void)
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{
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add_cmd ("registers", class_maintenance, maintenance_print_registers,
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_("Print the internal register configuration.\n"
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"Takes an optional file parameter."), &maintenanceprintlist);
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add_cmd ("raw-registers", class_maintenance,
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maintenance_print_raw_registers,
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_("Print the internal register configuration "
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"including raw values.\n"
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"Takes an optional file parameter."), &maintenanceprintlist);
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add_cmd ("cooked-registers", class_maintenance,
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maintenance_print_cooked_registers,
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_("Print the internal register configuration "
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"including cooked values.\n"
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"Takes an optional file parameter."), &maintenanceprintlist);
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add_cmd ("register-groups", class_maintenance,
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maintenance_print_register_groups,
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_("Print the internal register configuration "
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"including each register's group.\n"
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"Takes an optional file parameter."),
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&maintenanceprintlist);
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add_cmd ("remote-registers", class_maintenance,
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maintenance_print_remote_registers, _("\
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Print the internal register configuration including each register's\n\
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remote register number and buffer offset in the g/G packets.\n\
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Takes an optional file parameter."),
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&maintenanceprintlist);
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}
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