mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-15 04:31:49 +08:00
5af949e350
(paddress): Add GDBARCH parameter. * utils.c (strlen_paddr, paddr, paddr_nz): Remove. (paddress): Add GDBARCH parameter, use it instead of current_gdbarch. * ui-out.h (ui_out_field_core_addr): Add GDBARCH parameter. * ui-out.c (ui_out_field_core_addr): Add GDBARCH parameter, use it instead of current_gdbarch. Update calls to ui_out_field_core_addr to pass architecture: * ada-lang.c (print_one_exception): Update. * breakpoint.c (print_one_breakpoint_location, print_one_exception_catchpoint): Update. * disasm.c (dump_insns): Update. * darwin-nat-info.c (darwin_debug_regions_recurse): Update. * mi/mi-main.c (mi_cmd_data_read_memory): Update. * mi/mi-symbol-cmds.c: Include "objfiles.h". (mi_cmd_symbol_list_lines): Update. * stack.c (print_frame_info, print_frame): Update. Update callers of paddress to pass architecture: * ada-tasks.c (info_task): Update. * ada-valprint.c (ada_val_print_1): Update. * annotate.c (annotate_source, annotate_frame_begin): Update. * breakpoint.c (insert_bp_location, describe_other_breakpoints, mention): Update. * cli/cli-cmds.c (edit_command, list_command, print_disassembly): Update. * corefile.c (memory_error): Update. * c-valprint.c (print_function_pointer_address, c_val_print): Update. * disasm.c (dis_asm_print_address): Update. * exec.c (print_section_info): Update. * f-valprint.c (f_val_print): Update. * infcmd.c: Include "arch-utils.h". (jump_command, program_info): Update. * linux-fork.c: Include "arch-utils.h". (info_forks_command): Update. * m2-valprint.c (print_function_pointer_address, print_unpacked_pointer, print_variable_at_address, m2_val_print): Update. * m32r-rom.c (m32r_load_section, m32r_load, m32r_upload_command): Update. * printcmd.c (print_address, print_address_demangle, address_info): Update. * p-valprint.c (pascal_val_print): Update. * source.c: Include "arch-utils.h". (line_info): Update. * stack.c (frame_info, print_block_frame_labels): Update. * symfile.c (add_symbol_file_command, list_overlays_command): Update. * symmisc.c (dump_msymbols, dump_psymtab, dump_symtab_1, print_symbol, print_partial_symbols, maintenance_info_psymtabs, maintenance_check_symtabs): Update. * symtab.c (find_pc_sect_symtab): Update. * target.c (deprecated_debug_xfer_memory): Update. * tracepoint.c (scope_info): Update. * tui/tui-stack.c (tui_make_status_line): Update. * valprint.c (val_print_string): Update. Update callers of paddr_nz to use paddress instead (keeping user-visible output identical): * alpha-tdep.c (alpha_heuristic_proc_start): Update. * amd64-tdep.c (fixup_riprel, amd64_displaced_step_copy_insn, amd64_displaced_step_fixup): Update. * arch-utils.c (simple_displaced_step_copy_insn): Update. * auxv.c (fprint_target_auxv): Update. * breakpoint.c (insert_single_step_breakpoint): Update. * buildsym.c (finish_block): Update. * cli/cli-dump.c (restore_section_callback): Update. * fbsd-nat.c (fbsd_find_memory_regions): Update. * frame.c (frame_unwind_register_value): Update. * gcore.c (gcore_create_callback): Update. * hppa-tdep.c (hppa_frame_cache, hppa_skip_trampoline_code): Update. * i386-tdep.c (i386_displaced_step_fixup, i386_record_modrm, i386_record_lea_modrm_addr, i386_record_lea_modrm, i386_process_record): Update. * ia64-tdep.c (ia64_frame_this_id, ia64_sigtramp_frame_this_id, ia64_libunwind_frame_this_id, ia64_libunwind_sigtramp_frame_this_id, ia64_dummy_id, ia64_access_reg, ia64_access_rse_reg): Update. * infrun.c (displaced_step_prepare, displaced_step_fixup, handle_inferior_event, insert_step_resume_breakpoint_at_sal, insert_longjmp_resume_breakpoint): Update. * linux-nat.c (linux_nat_find_memory_regions): Update. * linux-record.c (record_linux_system_call): Update. * mips-tdep.c (heuristic_proc_start, mips_eabi_push_dummy_call, mips_n32n64_push_dummy_call, mips_o32_push_dummy_call, mips_o64_push_dummy_call): Update. * monitor.c (monitor_error, monitor_remove_breakpoint): Update. * record.c (record_arch_list_add_mem, record_wait, record_xfer_partial): Update. * remote-mips.c (mips_fetch_word, mips_check_lsi_error, mips_common_breakpoint): Update. * remote-sim.c (gdbsim_xfer_inferior_memory): Update. * rs6000-tdep.c (ppc_displaced_step_fixup): Update. * solib-som.c (som_current_sos): Update. * symfile.c (load_progress, generic_load): Update. * symfile-mem.c (add_vsyscall_page): Update. * valops.c (value_fetch_lazy): Update. * windows-tdep.c (windows_xfer_shared_library): Update. Update callers of paddr_nz to use paddress instead (changing user-visible output to make it more correct): * dwarf2loc.c (locexpr_describe_location): Update. * ia64-tdep.c (ia64_memory_insert_breakpoint, ia64_memory_remove_breakpoint): Update. * jv-valprint.c (java_value_print): Update. * m32c-tdep.c (m32c_m16c_address_to_pointer): Update. * monitor.c (monitor_read_memory): Update. Update callers of paddr to use paddress instead (changing user-visible output to make it more correct): * arm-tdep.c (arm_push_dummy_call): Update. * breakpoint.c (insert_bp_location, create_thread_event_breakpoint, create_breakpoint): Update. * darwin-nat-info.c (darwin_debug_regions): Update. * dcache.c (dcache_info): Update. * dsrec.c (load_srec, make_srec): Update. * dwarf2-frame.c (dwarf2_restore_rule, execute_cfa_program, dwarf2_frame_cache): Update. * gcore.c (gcore_copy_callback): Update. * gnu-nat.c (gnu_xfer_memory): Update. * mips-linux-nat.c (mips_show_dr): Update. * monitor.c (monitor_write_memory, monitor_insert_breakpoint, monitor_remove_breakpoint): Update. * remote.c (compare_sections_command): Update. * remote-m32r-sdi.c (m32r_xfer_memory, m32r_insert_breakpoint, m32r_remove_breakpoint, m32r_insert_watchpoint, m32r_remove_watchpoint): Update. * sol-thread.c (info_cb): Update. * symfile.c (load_progress): Update. Update callers of paddress or paddr_nz to use hex_string instead (changes output of internal/error/debug messages only): * dwarf2read.c (dump_die_shallow): Update. * frame.c (fprint_field, fprint_frame, frame_pc_unwind, get_frame_func, create_new_frame): Update. * hppa-tdep.c (find_unwind_entry, unwind_command): Update. * ia64-tdep.c (get_kernel_table, ia64_find_proc_info_x, ia64_get_dyn_info_list): Update. * maint.c (maintenance_translate_address): Update. * mi/mi-cmd-var.c (mi_cmd_var_create): Update. * target.c (target_flash_erase): Update. Update callers of paddr/paddr_nz to use phex/phex_nz instead, using an appropriate address size. Remove use of strlen_paddr. * exec.c (exec_files_info): Update. * i386-nat.c (i386_show_dr): Update. * remote.c (remote_flash_erase): Update. * m32r-rom.c (m32r_load_section): Update. * monitor.c (monitor_vsprintf, monitor_store_register): Update. * remote.c (remote_check_symbols, remote_search_memory): Update. * remote-mips.c (mips_request, mips_common_breakpoint): Update. * scm-valprint.c (scm_ipruk, scm_scmval_print): Update. * sh64-tdep.c (sh64_show_media_regs, sh64_show_compact_regs): Update. * sh-tdep.c (sh_generic_show_regs, sh3_show_regs, sh2e_show_regs, sh2a_show_regs, sh2a_nofpu_show_regs, sh3e_show_regs, sh3_dsp_show_regs, sh4_show_regs, sh4_nofpu_show_regs, sh_dsp_show_regs): Update. * xcoffsolib.c (sharedlibrary_command): Update. * maint.c (maint_print_section_info): Add ADDR_SIZE parameter. Use hex_string_custom instead of paddr. (print_bfd_section_info): Pass address size. (print_objfile_section_info): Likewise. * annotate.h (annotate_source): Add GDBARCH parameter. (annotate_frame_begin): Likewise. * annotate.c (annotate_source): Add GDBARCH parameter. (annotate_frame_begin): Likewise. * source.c (identify_source_line): Update call to annotate_source. * stack.c (print_frame_info, print_frame): Update call to annotate_frame_begin. * breakpoint.c (describe_other_breakpoints): Add GDBARCH parameter. (create_breakpoint, create_ada_exception_breakpoint): Update call. * stack.c (print_block_frame_labels): Add GDBARCH parameter. (print_frame_label_vars): Update call. * symmisc.c (print_partial_symbols): Add GDBARCH parameter. (dump_psymtab): Update call to print_partial_symbols. (struct print_symbol_args): Add GDBARCH member. (dump_symtab_1): Set print_symbol_args architecture member. (print_symbol): Use it. * windows-tdep.h (windows_xfer_shared_library): Add GDBARCH parameter. * windows-tdep.c (windows_xfer_shared_library): Likewise. * i386-cygwin-tdep.c (struct cpms_data): Add GDBARCH member. (core_process_module_section): Pass architecture from cpms_data to windows_xfer_shared_library. (windows_core_xfer_shared_libraries): Initialize cmps_data architecture member. * windows-nat.c (windows_xfer_shared_libraries): Pass architecture to windows_xfer_shared_library. * defs.h (print_address): Add GDBARCH parameter. * printcmd.c (print_address): Add GDBARCH parameter. (print_scalar_formatted, do_examine): Update call. * findcmd.c (find_command): Update call. * tracepoint.c: Include "arch-utils.h". (trace_find_line_command): Update call. * tui/tui-disasm.c (tui_disassemble): Update call. * value.h (print_address_demangle): Add GDBARCH parameter. * printcmd.c (print_address_demangle): Add GDBARCH parameter. * c-valprint.c (print_function_pointer_address, c_val_print): Update call. * f-valprint.c (f_val_print): Update call. * gnu-v3-abi.c (gnuv3_print_method_ptr): Update call. * jv-valprint.c (java_val_print): Update call. * m2-valprint.c (print_function_pointer_address, m2_val_print): Update call. * p-valprint.c (pascal_val_print): Update call. * disasm.c (gdb_disassemble_info): Install architecture into di.application_data field. testsuite/ChangeLog: * gdb.threads/tls-shared.exp: Update to locexpr_describe_location change to prefix TLS offset in hex with 0x. doc/ChangeLog: * gdbint.texinfo (Item Output Functions): Update signature for ui_out_field_core_addr.
934 lines
26 KiB
C
934 lines
26 KiB
C
/* Generic remote debugging interface for simulators.
|
|
|
|
Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
|
|
2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
|
|
|
|
Contributed by Cygnus Support.
|
|
Steve Chamberlain (sac@cygnus.com).
|
|
|
|
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/>. */
|
|
|
|
#include "defs.h"
|
|
#include "inferior.h"
|
|
#include "value.h"
|
|
#include "gdb_string.h"
|
|
#include <ctype.h>
|
|
#include <fcntl.h>
|
|
#include <signal.h>
|
|
#include <setjmp.h>
|
|
#include <errno.h>
|
|
#include "terminal.h"
|
|
#include "target.h"
|
|
#include "gdbcore.h"
|
|
#include "gdb/callback.h"
|
|
#include "gdb/remote-sim.h"
|
|
#include "command.h"
|
|
#include "regcache.h"
|
|
#include "gdb_assert.h"
|
|
#include "sim-regno.h"
|
|
#include "arch-utils.h"
|
|
#include "readline/readline.h"
|
|
#include "gdbthread.h"
|
|
|
|
/* Prototypes */
|
|
|
|
extern void _initialize_remote_sim (void);
|
|
|
|
static void dump_mem (char *buf, int len);
|
|
|
|
static void init_callbacks (void);
|
|
|
|
static void end_callbacks (void);
|
|
|
|
static int gdb_os_write_stdout (host_callback *, const char *, int);
|
|
|
|
static void gdb_os_flush_stdout (host_callback *);
|
|
|
|
static int gdb_os_write_stderr (host_callback *, const char *, int);
|
|
|
|
static void gdb_os_flush_stderr (host_callback *);
|
|
|
|
static int gdb_os_poll_quit (host_callback *);
|
|
|
|
/* printf_filtered is depreciated */
|
|
static void gdb_os_printf_filtered (host_callback *, const char *, ...);
|
|
|
|
static void gdb_os_vprintf_filtered (host_callback *, const char *, va_list);
|
|
|
|
static void gdb_os_evprintf_filtered (host_callback *, const char *, va_list);
|
|
|
|
static void gdb_os_error (host_callback *, const char *, ...) ATTR_NORETURN;
|
|
|
|
static void gdbsim_kill (struct target_ops *);
|
|
|
|
static void gdbsim_load (char *prog, int fromtty);
|
|
|
|
static void gdbsim_open (char *args, int from_tty);
|
|
|
|
static void gdbsim_close (int quitting);
|
|
|
|
static void gdbsim_detach (struct target_ops *ops, char *args, int from_tty);
|
|
|
|
static void gdbsim_prepare_to_store (struct regcache *regcache);
|
|
|
|
static void gdbsim_files_info (struct target_ops *target);
|
|
|
|
static void gdbsim_mourn_inferior (struct target_ops *target);
|
|
|
|
static void gdbsim_stop (ptid_t ptid);
|
|
|
|
void simulator_command (char *args, int from_tty);
|
|
|
|
/* Naming convention:
|
|
|
|
sim_* are the interface to the simulator (see remote-sim.h).
|
|
gdbsim_* are stuff which is internal to gdb. */
|
|
|
|
/* Forward data declarations */
|
|
extern struct target_ops gdbsim_ops;
|
|
|
|
static int program_loaded = 0;
|
|
|
|
/* We must keep track of whether the simulator has been opened or not because
|
|
GDB can call a target's close routine twice, but sim_close doesn't allow
|
|
this. We also need to record the result of sim_open so we can pass it
|
|
back to the other sim_foo routines. */
|
|
static SIM_DESC gdbsim_desc = 0;
|
|
|
|
/* This is the ptid we use while we're connected to the simulator.
|
|
Its value is arbitrary, as the simulator target don't have a notion
|
|
or processes or threads, but we need something non-null to place in
|
|
inferior_ptid. */
|
|
static ptid_t remote_sim_ptid;
|
|
|
|
static void
|
|
dump_mem (char *buf, int len)
|
|
{
|
|
if (len <= 8)
|
|
{
|
|
if (len == 8 || len == 4)
|
|
{
|
|
long l[2];
|
|
memcpy (l, buf, len);
|
|
printf_filtered ("\t0x%lx", l[0]);
|
|
if (len == 8)
|
|
printf_filtered (" 0x%lx", l[1]);
|
|
printf_filtered ("\n");
|
|
}
|
|
else
|
|
{
|
|
int i;
|
|
printf_filtered ("\t");
|
|
for (i = 0; i < len; i++)
|
|
printf_filtered ("0x%x ", buf[i]);
|
|
printf_filtered ("\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
static host_callback gdb_callback;
|
|
static int callbacks_initialized = 0;
|
|
|
|
/* Initialize gdb_callback. */
|
|
|
|
static void
|
|
init_callbacks (void)
|
|
{
|
|
if (!callbacks_initialized)
|
|
{
|
|
gdb_callback = default_callback;
|
|
gdb_callback.init (&gdb_callback);
|
|
gdb_callback.write_stdout = gdb_os_write_stdout;
|
|
gdb_callback.flush_stdout = gdb_os_flush_stdout;
|
|
gdb_callback.write_stderr = gdb_os_write_stderr;
|
|
gdb_callback.flush_stderr = gdb_os_flush_stderr;
|
|
gdb_callback.printf_filtered = gdb_os_printf_filtered;
|
|
gdb_callback.vprintf_filtered = gdb_os_vprintf_filtered;
|
|
gdb_callback.evprintf_filtered = gdb_os_evprintf_filtered;
|
|
gdb_callback.error = gdb_os_error;
|
|
gdb_callback.poll_quit = gdb_os_poll_quit;
|
|
gdb_callback.magic = HOST_CALLBACK_MAGIC;
|
|
callbacks_initialized = 1;
|
|
}
|
|
}
|
|
|
|
/* Release callbacks (free resources used by them). */
|
|
|
|
static void
|
|
end_callbacks (void)
|
|
{
|
|
if (callbacks_initialized)
|
|
{
|
|
gdb_callback.shutdown (&gdb_callback);
|
|
callbacks_initialized = 0;
|
|
}
|
|
}
|
|
|
|
/* GDB version of os_write_stdout callback. */
|
|
|
|
static int
|
|
gdb_os_write_stdout (host_callback *p, const char *buf, int len)
|
|
{
|
|
int i;
|
|
char b[2];
|
|
|
|
ui_file_write (gdb_stdtarg, buf, len);
|
|
return len;
|
|
}
|
|
|
|
/* GDB version of os_flush_stdout callback. */
|
|
|
|
static void
|
|
gdb_os_flush_stdout (host_callback *p)
|
|
{
|
|
gdb_flush (gdb_stdtarg);
|
|
}
|
|
|
|
/* GDB version of os_write_stderr callback. */
|
|
|
|
static int
|
|
gdb_os_write_stderr (host_callback *p, const char *buf, int len)
|
|
{
|
|
int i;
|
|
char b[2];
|
|
|
|
for (i = 0; i < len; i++)
|
|
{
|
|
b[0] = buf[i];
|
|
b[1] = 0;
|
|
fputs_unfiltered (b, gdb_stdtargerr);
|
|
}
|
|
return len;
|
|
}
|
|
|
|
/* GDB version of os_flush_stderr callback. */
|
|
|
|
static void
|
|
gdb_os_flush_stderr (host_callback *p)
|
|
{
|
|
gdb_flush (gdb_stdtargerr);
|
|
}
|
|
|
|
/* GDB version of printf_filtered callback. */
|
|
|
|
static void
|
|
gdb_os_printf_filtered (host_callback * p, const char *format,...)
|
|
{
|
|
va_list args;
|
|
va_start (args, format);
|
|
|
|
vfprintf_filtered (gdb_stdout, format, args);
|
|
|
|
va_end (args);
|
|
}
|
|
|
|
/* GDB version of error vprintf_filtered. */
|
|
|
|
static void
|
|
gdb_os_vprintf_filtered (host_callback * p, const char *format, va_list ap)
|
|
{
|
|
vfprintf_filtered (gdb_stdout, format, ap);
|
|
}
|
|
|
|
/* GDB version of error evprintf_filtered. */
|
|
|
|
static void
|
|
gdb_os_evprintf_filtered (host_callback * p, const char *format, va_list ap)
|
|
{
|
|
vfprintf_filtered (gdb_stderr, format, ap);
|
|
}
|
|
|
|
/* GDB version of error callback. */
|
|
|
|
static void
|
|
gdb_os_error (host_callback * p, const char *format, ...)
|
|
{
|
|
va_list args;
|
|
va_start (args, format);
|
|
verror (format, args);
|
|
va_end (args);
|
|
}
|
|
|
|
int
|
|
one2one_register_sim_regno (struct gdbarch *gdbarch, int regnum)
|
|
{
|
|
/* Only makes sense to supply raw registers. */
|
|
gdb_assert (regnum >= 0 && regnum < gdbarch_num_regs (gdbarch));
|
|
return regnum;
|
|
}
|
|
|
|
static void
|
|
gdbsim_fetch_register (struct target_ops *ops,
|
|
struct regcache *regcache, int regno)
|
|
{
|
|
struct gdbarch *gdbarch = get_regcache_arch (regcache);
|
|
if (regno == -1)
|
|
{
|
|
for (regno = 0; regno < gdbarch_num_regs (gdbarch); regno++)
|
|
gdbsim_fetch_register (ops, regcache, regno);
|
|
return;
|
|
}
|
|
|
|
switch (gdbarch_register_sim_regno (gdbarch, regno))
|
|
{
|
|
case LEGACY_SIM_REGNO_IGNORE:
|
|
break;
|
|
case SIM_REGNO_DOES_NOT_EXIST:
|
|
{
|
|
/* For moment treat a `does not exist' register the same way
|
|
as an ``unavailable'' register. */
|
|
char buf[MAX_REGISTER_SIZE];
|
|
int nr_bytes;
|
|
memset (buf, 0, MAX_REGISTER_SIZE);
|
|
regcache_raw_supply (regcache, regno, buf);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
static int warn_user = 1;
|
|
char buf[MAX_REGISTER_SIZE];
|
|
int nr_bytes;
|
|
gdb_assert (regno >= 0 && regno < gdbarch_num_regs (gdbarch));
|
|
memset (buf, 0, MAX_REGISTER_SIZE);
|
|
nr_bytes = sim_fetch_register (gdbsim_desc,
|
|
gdbarch_register_sim_regno
|
|
(gdbarch, regno),
|
|
buf,
|
|
register_size (gdbarch, regno));
|
|
if (nr_bytes > 0
|
|
&& nr_bytes != register_size (gdbarch, regno) && warn_user)
|
|
{
|
|
fprintf_unfiltered (gdb_stderr,
|
|
"Size of register %s (%d/%d) incorrect (%d instead of %d))",
|
|
gdbarch_register_name (gdbarch, regno),
|
|
regno,
|
|
gdbarch_register_sim_regno
|
|
(gdbarch, regno),
|
|
nr_bytes, register_size (gdbarch, regno));
|
|
warn_user = 0;
|
|
}
|
|
/* FIXME: cagney/2002-05-27: Should check `nr_bytes == 0'
|
|
indicating that GDB and the SIM have different ideas about
|
|
which registers are fetchable. */
|
|
/* Else if (nr_bytes < 0): an old simulator, that doesn't
|
|
think to return the register size. Just assume all is ok. */
|
|
regcache_raw_supply (regcache, regno, buf);
|
|
if (remote_debug)
|
|
{
|
|
printf_filtered ("gdbsim_fetch_register: %d", regno);
|
|
/* FIXME: We could print something more intelligible. */
|
|
dump_mem (buf, register_size (gdbarch, regno));
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
gdbsim_store_register (struct target_ops *ops,
|
|
struct regcache *regcache, int regno)
|
|
{
|
|
struct gdbarch *gdbarch = get_regcache_arch (regcache);
|
|
if (regno == -1)
|
|
{
|
|
for (regno = 0; regno < gdbarch_num_regs (gdbarch); regno++)
|
|
gdbsim_store_register (ops, regcache, regno);
|
|
return;
|
|
}
|
|
else if (gdbarch_register_sim_regno (gdbarch, regno) >= 0)
|
|
{
|
|
char tmp[MAX_REGISTER_SIZE];
|
|
int nr_bytes;
|
|
regcache_cooked_read (regcache, regno, tmp);
|
|
nr_bytes = sim_store_register (gdbsim_desc,
|
|
gdbarch_register_sim_regno
|
|
(gdbarch, regno),
|
|
tmp, register_size (gdbarch, regno));
|
|
if (nr_bytes > 0 && nr_bytes != register_size (gdbarch, regno))
|
|
internal_error (__FILE__, __LINE__,
|
|
_("Register size different to expected"));
|
|
/* FIXME: cagney/2002-05-27: Should check `nr_bytes == 0'
|
|
indicating that GDB and the SIM have different ideas about
|
|
which registers are fetchable. */
|
|
if (remote_debug)
|
|
{
|
|
printf_filtered ("gdbsim_store_register: %d", regno);
|
|
/* FIXME: We could print something more intelligible. */
|
|
dump_mem (tmp, register_size (gdbarch, regno));
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Kill the running program. This may involve closing any open files
|
|
and releasing other resources acquired by the simulated program. */
|
|
|
|
static void
|
|
gdbsim_kill (struct target_ops *ops)
|
|
{
|
|
if (remote_debug)
|
|
printf_filtered ("gdbsim_kill\n");
|
|
|
|
/* There is no need to `kill' running simulator - the simulator is
|
|
not running. Mourning it is enough. */
|
|
target_mourn_inferior ();
|
|
}
|
|
|
|
/* Load an executable file into the target process. This is expected to
|
|
not only bring new code into the target process, but also to update
|
|
GDB's symbol tables to match. */
|
|
|
|
static void
|
|
gdbsim_load (char *args, int fromtty)
|
|
{
|
|
char **argv;
|
|
char *prog;
|
|
|
|
if (args == NULL)
|
|
error_no_arg (_("program to load"));
|
|
|
|
argv = gdb_buildargv (args);
|
|
make_cleanup_freeargv (argv);
|
|
|
|
prog = tilde_expand (argv[0]);
|
|
|
|
if (argv[1] != NULL)
|
|
error (_("GDB sim does not yet support a load offset."));
|
|
|
|
if (remote_debug)
|
|
printf_filtered ("gdbsim_load: prog \"%s\"\n", prog);
|
|
|
|
/* FIXME: We will print two messages on error.
|
|
Need error to either not print anything if passed NULL or need
|
|
another routine that doesn't take any arguments. */
|
|
if (sim_load (gdbsim_desc, prog, NULL, fromtty) == SIM_RC_FAIL)
|
|
error (_("unable to load program"));
|
|
|
|
/* FIXME: If a load command should reset the targets registers then
|
|
a call to sim_create_inferior() should go here. */
|
|
|
|
program_loaded = 1;
|
|
}
|
|
|
|
|
|
/* Start an inferior process and set inferior_ptid to its pid.
|
|
EXEC_FILE is the file to run.
|
|
ARGS is a string containing the arguments to the program.
|
|
ENV is the environment vector to pass. Errors reported with error().
|
|
On VxWorks and various standalone systems, we ignore exec_file. */
|
|
/* This is called not only when we first attach, but also when the
|
|
user types "run" after having attached. */
|
|
|
|
static void
|
|
gdbsim_create_inferior (struct target_ops *target, char *exec_file, char *args,
|
|
char **env, int from_tty)
|
|
{
|
|
int len;
|
|
char *arg_buf, **argv;
|
|
|
|
if (exec_file == 0 || exec_bfd == 0)
|
|
warning (_("No executable file specified."));
|
|
if (!program_loaded)
|
|
warning (_("No program loaded."));
|
|
|
|
if (remote_debug)
|
|
printf_filtered ("gdbsim_create_inferior: exec_file \"%s\", args \"%s\"\n",
|
|
(exec_file ? exec_file : "(NULL)"),
|
|
args);
|
|
|
|
if (ptid_equal (inferior_ptid, remote_sim_ptid))
|
|
gdbsim_kill (target);
|
|
remove_breakpoints ();
|
|
init_wait_for_inferior ();
|
|
|
|
if (exec_file != NULL)
|
|
{
|
|
len = strlen (exec_file) + 1 + strlen (args) + 1 + /*slop */ 10;
|
|
arg_buf = (char *) alloca (len);
|
|
arg_buf[0] = '\0';
|
|
strcat (arg_buf, exec_file);
|
|
strcat (arg_buf, " ");
|
|
strcat (arg_buf, args);
|
|
argv = gdb_buildargv (arg_buf);
|
|
make_cleanup_freeargv (argv);
|
|
}
|
|
else
|
|
argv = NULL;
|
|
sim_create_inferior (gdbsim_desc, exec_bfd, argv, env);
|
|
|
|
inferior_ptid = remote_sim_ptid;
|
|
add_inferior_silent (ptid_get_pid (inferior_ptid));
|
|
add_thread_silent (inferior_ptid);
|
|
|
|
insert_breakpoints (); /* Needed to get correct instruction in cache */
|
|
|
|
clear_proceed_status ();
|
|
}
|
|
|
|
/* The open routine takes the rest of the parameters from the command,
|
|
and (if successful) pushes a new target onto the stack.
|
|
Targets should supply this routine, if only to provide an error message. */
|
|
/* Called when selecting the simulator. EG: (gdb) target sim name. */
|
|
|
|
static void
|
|
gdbsim_open (char *args, int from_tty)
|
|
{
|
|
int len;
|
|
char *arg_buf;
|
|
char **argv;
|
|
|
|
if (remote_debug)
|
|
printf_filtered ("gdbsim_open: args \"%s\"\n", args ? args : "(null)");
|
|
|
|
/* Remove current simulator if one exists. Only do this if the simulator
|
|
has been opened because sim_close requires it.
|
|
This is important because the call to push_target below will cause
|
|
sim_close to be called if the simulator is already open, but push_target
|
|
is called after sim_open! We can't move the call to push_target before
|
|
the call to sim_open because sim_open may invoke `error'. */
|
|
if (gdbsim_desc != NULL)
|
|
unpush_target (&gdbsim_ops);
|
|
|
|
len = (7 + 1 /* gdbsim */
|
|
+ strlen (" -E little")
|
|
+ strlen (" --architecture=xxxxxxxxxx")
|
|
+ (args ? strlen (args) : 0)
|
|
+ 50) /* slack */ ;
|
|
arg_buf = (char *) alloca (len);
|
|
strcpy (arg_buf, "gdbsim"); /* 7 */
|
|
/* Specify the byte order for the target when it is explicitly
|
|
specified by the user (not auto detected). */
|
|
switch (selected_byte_order ())
|
|
{
|
|
case BFD_ENDIAN_BIG:
|
|
strcat (arg_buf, " -E big");
|
|
break;
|
|
case BFD_ENDIAN_LITTLE:
|
|
strcat (arg_buf, " -E little");
|
|
break;
|
|
case BFD_ENDIAN_UNKNOWN:
|
|
break;
|
|
}
|
|
/* Specify the architecture of the target when it has been
|
|
explicitly specified */
|
|
if (selected_architecture_name () != NULL)
|
|
{
|
|
strcat (arg_buf, " --architecture=");
|
|
strcat (arg_buf, selected_architecture_name ());
|
|
}
|
|
/* finally, any explicit args */
|
|
if (args)
|
|
{
|
|
strcat (arg_buf, " "); /* 1 */
|
|
strcat (arg_buf, args);
|
|
}
|
|
argv = gdb_buildargv (arg_buf);
|
|
make_cleanup_freeargv (argv);
|
|
|
|
init_callbacks ();
|
|
gdbsim_desc = sim_open (SIM_OPEN_DEBUG, &gdb_callback, exec_bfd, argv);
|
|
|
|
if (gdbsim_desc == 0)
|
|
error (_("unable to create simulator instance"));
|
|
|
|
push_target (&gdbsim_ops);
|
|
printf_filtered ("Connected to the simulator.\n");
|
|
|
|
/* There's nothing running after "target sim" or "load"; not until
|
|
"run". */
|
|
inferior_ptid = null_ptid;
|
|
}
|
|
|
|
/* Does whatever cleanup is required for a target that we are no longer
|
|
going to be calling. Argument says whether we are quitting gdb and
|
|
should not get hung in case of errors, or whether we want a clean
|
|
termination even if it takes a while. This routine is automatically
|
|
always called just before a routine is popped off the target stack.
|
|
Closing file descriptors and freeing memory are typical things it should
|
|
do. */
|
|
/* Close out all files and local state before this target loses control. */
|
|
|
|
static void
|
|
gdbsim_close (int quitting)
|
|
{
|
|
if (remote_debug)
|
|
printf_filtered ("gdbsim_close: quitting %d\n", quitting);
|
|
|
|
program_loaded = 0;
|
|
|
|
if (gdbsim_desc != NULL)
|
|
{
|
|
sim_close (gdbsim_desc, quitting);
|
|
gdbsim_desc = NULL;
|
|
}
|
|
|
|
end_callbacks ();
|
|
generic_mourn_inferior ();
|
|
delete_thread_silent (remote_sim_ptid);
|
|
delete_inferior_silent (ptid_get_pid (remote_sim_ptid));
|
|
}
|
|
|
|
/* Takes a program previously attached to and detaches it.
|
|
The program may resume execution (some targets do, some don't) and will
|
|
no longer stop on signals, etc. We better not have left any breakpoints
|
|
in the program or it'll die when it hits one. ARGS is arguments
|
|
typed by the user (e.g. a signal to send the process). FROM_TTY
|
|
says whether to be verbose or not. */
|
|
/* Terminate the open connection to the remote debugger.
|
|
Use this when you want to detach and do something else with your gdb. */
|
|
|
|
static void
|
|
gdbsim_detach (struct target_ops *ops, char *args, int from_tty)
|
|
{
|
|
if (remote_debug)
|
|
printf_filtered ("gdbsim_detach: args \"%s\"\n", args);
|
|
|
|
pop_target (); /* calls gdbsim_close to do the real work */
|
|
if (from_tty)
|
|
printf_filtered ("Ending simulator %s debugging\n", target_shortname);
|
|
}
|
|
|
|
/* Resume execution of the target process. STEP says whether to single-step
|
|
or to run free; SIGGNAL is the signal value (e.g. SIGINT) to be given
|
|
to the target, or zero for no signal. */
|
|
|
|
static enum target_signal resume_siggnal;
|
|
static int resume_step;
|
|
|
|
static void
|
|
gdbsim_resume (struct target_ops *ops,
|
|
ptid_t ptid, int step, enum target_signal siggnal)
|
|
{
|
|
if (!ptid_equal (inferior_ptid, remote_sim_ptid))
|
|
error (_("The program is not being run."));
|
|
|
|
if (remote_debug)
|
|
printf_filtered ("gdbsim_resume: step %d, signal %d\n", step, siggnal);
|
|
|
|
resume_siggnal = siggnal;
|
|
resume_step = step;
|
|
}
|
|
|
|
/* Notify the simulator of an asynchronous request to stop.
|
|
|
|
The simulator shall ensure that the stop request is eventually
|
|
delivered to the simulator. If the call is made while the
|
|
simulator is not running then the stop request is processed when
|
|
the simulator is next resumed.
|
|
|
|
For simulators that do not support this operation, just abort */
|
|
|
|
static void
|
|
gdbsim_stop (ptid_t ptid)
|
|
{
|
|
if (!sim_stop (gdbsim_desc))
|
|
{
|
|
quit ();
|
|
}
|
|
}
|
|
|
|
/* GDB version of os_poll_quit callback.
|
|
Taken from gdb/util.c - should be in a library. */
|
|
|
|
static int
|
|
gdb_os_poll_quit (host_callback *p)
|
|
{
|
|
if (deprecated_ui_loop_hook != NULL)
|
|
deprecated_ui_loop_hook (0);
|
|
|
|
if (quit_flag) /* gdb's idea of quit */
|
|
{
|
|
quit_flag = 0; /* we've stolen it */
|
|
return 1;
|
|
}
|
|
else if (immediate_quit)
|
|
{
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Wait for inferior process to do something. Return pid of child,
|
|
or -1 in case of error; store status through argument pointer STATUS,
|
|
just as `wait' would. */
|
|
|
|
static void
|
|
gdbsim_cntrl_c (int signo)
|
|
{
|
|
gdbsim_stop (remote_sim_ptid);
|
|
}
|
|
|
|
static ptid_t
|
|
gdbsim_wait (struct target_ops *ops,
|
|
ptid_t ptid, struct target_waitstatus *status, int options)
|
|
{
|
|
static RETSIGTYPE (*prev_sigint) ();
|
|
int sigrc = 0;
|
|
enum sim_stop reason = sim_running;
|
|
|
|
if (remote_debug)
|
|
printf_filtered ("gdbsim_wait\n");
|
|
|
|
#if defined (HAVE_SIGACTION) && defined (SA_RESTART)
|
|
{
|
|
struct sigaction sa, osa;
|
|
sa.sa_handler = gdbsim_cntrl_c;
|
|
sigemptyset (&sa.sa_mask);
|
|
sa.sa_flags = 0;
|
|
sigaction (SIGINT, &sa, &osa);
|
|
prev_sigint = osa.sa_handler;
|
|
}
|
|
#else
|
|
prev_sigint = signal (SIGINT, gdbsim_cntrl_c);
|
|
#endif
|
|
sim_resume (gdbsim_desc, resume_step, resume_siggnal);
|
|
signal (SIGINT, prev_sigint);
|
|
resume_step = 0;
|
|
|
|
sim_stop_reason (gdbsim_desc, &reason, &sigrc);
|
|
|
|
switch (reason)
|
|
{
|
|
case sim_exited:
|
|
status->kind = TARGET_WAITKIND_EXITED;
|
|
status->value.integer = sigrc;
|
|
break;
|
|
case sim_stopped:
|
|
switch (sigrc)
|
|
{
|
|
case TARGET_SIGNAL_ABRT:
|
|
quit ();
|
|
break;
|
|
case TARGET_SIGNAL_INT:
|
|
case TARGET_SIGNAL_TRAP:
|
|
default:
|
|
status->kind = TARGET_WAITKIND_STOPPED;
|
|
status->value.sig = sigrc;
|
|
break;
|
|
}
|
|
break;
|
|
case sim_signalled:
|
|
status->kind = TARGET_WAITKIND_SIGNALLED;
|
|
status->value.sig = sigrc;
|
|
break;
|
|
case sim_running:
|
|
case sim_polling:
|
|
/* FIXME: Is this correct? */
|
|
break;
|
|
}
|
|
|
|
return inferior_ptid;
|
|
}
|
|
|
|
/* Get ready to modify the registers array. On machines which store
|
|
individual registers, this doesn't need to do anything. On machines
|
|
which store all the registers in one fell swoop, this makes sure
|
|
that registers contains all the registers from the program being
|
|
debugged. */
|
|
|
|
static void
|
|
gdbsim_prepare_to_store (struct regcache *regcache)
|
|
{
|
|
/* Do nothing, since we can store individual regs */
|
|
}
|
|
|
|
/* Transfer LEN bytes between GDB address MYADDR and target address
|
|
MEMADDR. If WRITE is non-zero, transfer them to the target,
|
|
otherwise transfer them from the target. TARGET is unused.
|
|
|
|
Returns the number of bytes transferred. */
|
|
|
|
static int
|
|
gdbsim_xfer_inferior_memory (CORE_ADDR memaddr, gdb_byte *myaddr, int len,
|
|
int write, struct mem_attrib *attrib,
|
|
struct target_ops *target)
|
|
{
|
|
/* If no program is running yet, then ignore the simulator for
|
|
memory. Pass the request down to the next target, hopefully
|
|
an exec file. */
|
|
if (!target_has_execution)
|
|
return 0;
|
|
|
|
if (!program_loaded)
|
|
error (_("No program loaded."));
|
|
|
|
if (remote_debug)
|
|
{
|
|
/* FIXME: Send to something other than STDOUT? */
|
|
printf_filtered ("gdbsim_xfer_inferior_memory: myaddr 0x");
|
|
gdb_print_host_address (myaddr, gdb_stdout);
|
|
printf_filtered (", memaddr %s, len %d, write %d\n",
|
|
paddress (target_gdbarch, memaddr), len, write);
|
|
if (remote_debug && write)
|
|
dump_mem (myaddr, len);
|
|
}
|
|
|
|
if (write)
|
|
{
|
|
len = sim_write (gdbsim_desc, memaddr, myaddr, len);
|
|
}
|
|
else
|
|
{
|
|
len = sim_read (gdbsim_desc, memaddr, myaddr, len);
|
|
if (remote_debug && len > 0)
|
|
dump_mem (myaddr, len);
|
|
}
|
|
return len;
|
|
}
|
|
|
|
static void
|
|
gdbsim_files_info (struct target_ops *target)
|
|
{
|
|
char *file = "nothing";
|
|
|
|
if (exec_bfd)
|
|
file = bfd_get_filename (exec_bfd);
|
|
|
|
if (remote_debug)
|
|
printf_filtered ("gdbsim_files_info: file \"%s\"\n", file);
|
|
|
|
if (exec_bfd)
|
|
{
|
|
printf_filtered ("\tAttached to %s running program %s\n",
|
|
target_shortname, file);
|
|
sim_info (gdbsim_desc, 0);
|
|
}
|
|
}
|
|
|
|
/* Clear the simulator's notion of what the break points are. */
|
|
|
|
static void
|
|
gdbsim_mourn_inferior (struct target_ops *target)
|
|
{
|
|
if (remote_debug)
|
|
printf_filtered ("gdbsim_mourn_inferior:\n");
|
|
|
|
remove_breakpoints ();
|
|
generic_mourn_inferior ();
|
|
delete_thread_silent (remote_sim_ptid);
|
|
}
|
|
|
|
/* Pass the command argument through to the simulator verbatim. The
|
|
simulator must do any command interpretation work. */
|
|
|
|
void
|
|
simulator_command (char *args, int from_tty)
|
|
{
|
|
if (gdbsim_desc == NULL)
|
|
{
|
|
|
|
/* PREVIOUSLY: The user may give a command before the simulator
|
|
is opened. [...] (??? assuming of course one wishes to
|
|
continue to allow commands to be sent to unopened simulators,
|
|
which isn't entirely unreasonable). */
|
|
|
|
/* The simulator is a builtin abstraction of a remote target.
|
|
Consistent with that model, access to the simulator, via sim
|
|
commands, is restricted to the period when the channel to the
|
|
simulator is open. */
|
|
|
|
error (_("Not connected to the simulator target"));
|
|
}
|
|
|
|
sim_do_command (gdbsim_desc, args);
|
|
|
|
/* Invalidate the register cache, in case the simulator command does
|
|
something funny. */
|
|
registers_changed ();
|
|
}
|
|
|
|
/* Check to see if a thread is still alive. */
|
|
|
|
static int
|
|
gdbsim_thread_alive (struct target_ops *ops, ptid_t ptid)
|
|
{
|
|
if (ptid_equal (ptid, remote_sim_ptid))
|
|
/* The simulators' task is always alive. */
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Convert a thread ID to a string. Returns the string in a static
|
|
buffer. */
|
|
|
|
static char *
|
|
gdbsim_pid_to_str (struct target_ops *ops, ptid_t ptid)
|
|
{
|
|
static char buf[64];
|
|
|
|
if (ptid_equal (remote_sim_ptid, ptid))
|
|
{
|
|
xsnprintf (buf, sizeof buf, "Thread <main>");
|
|
return buf;
|
|
}
|
|
|
|
return normal_pid_to_str (ptid);
|
|
}
|
|
|
|
/* Define the target subroutine names */
|
|
|
|
struct target_ops gdbsim_ops;
|
|
|
|
static void
|
|
init_gdbsim_ops (void)
|
|
{
|
|
gdbsim_ops.to_shortname = "sim";
|
|
gdbsim_ops.to_longname = "simulator";
|
|
gdbsim_ops.to_doc = "Use the compiled-in simulator.";
|
|
gdbsim_ops.to_open = gdbsim_open;
|
|
gdbsim_ops.to_close = gdbsim_close;
|
|
gdbsim_ops.to_detach = gdbsim_detach;
|
|
gdbsim_ops.to_resume = gdbsim_resume;
|
|
gdbsim_ops.to_wait = gdbsim_wait;
|
|
gdbsim_ops.to_fetch_registers = gdbsim_fetch_register;
|
|
gdbsim_ops.to_store_registers = gdbsim_store_register;
|
|
gdbsim_ops.to_prepare_to_store = gdbsim_prepare_to_store;
|
|
gdbsim_ops.deprecated_xfer_memory = gdbsim_xfer_inferior_memory;
|
|
gdbsim_ops.to_files_info = gdbsim_files_info;
|
|
gdbsim_ops.to_insert_breakpoint = memory_insert_breakpoint;
|
|
gdbsim_ops.to_remove_breakpoint = memory_remove_breakpoint;
|
|
gdbsim_ops.to_kill = gdbsim_kill;
|
|
gdbsim_ops.to_load = gdbsim_load;
|
|
gdbsim_ops.to_create_inferior = gdbsim_create_inferior;
|
|
gdbsim_ops.to_mourn_inferior = gdbsim_mourn_inferior;
|
|
gdbsim_ops.to_stop = gdbsim_stop;
|
|
gdbsim_ops.to_thread_alive = gdbsim_thread_alive;
|
|
gdbsim_ops.to_pid_to_str = gdbsim_pid_to_str;
|
|
gdbsim_ops.to_stratum = process_stratum;
|
|
gdbsim_ops.to_has_all_memory = default_child_has_all_memory;
|
|
gdbsim_ops.to_has_memory = default_child_has_memory;
|
|
gdbsim_ops.to_has_stack = default_child_has_stack;
|
|
gdbsim_ops.to_has_registers = default_child_has_registers;
|
|
gdbsim_ops.to_has_execution = default_child_has_execution;
|
|
gdbsim_ops.to_magic = OPS_MAGIC;
|
|
}
|
|
|
|
void
|
|
_initialize_remote_sim (void)
|
|
{
|
|
init_gdbsim_ops ();
|
|
add_target (&gdbsim_ops);
|
|
|
|
add_com ("sim", class_obscure, simulator_command,
|
|
_("Send a command to the simulator."));
|
|
|
|
/* Yes, 42000 is arbitrary. The only sense out of it, is that it
|
|
isn't 0. */
|
|
remote_sim_ptid = ptid_build (42000, 0, 42000);
|
|
}
|