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binutils-gdb/gdb/m32r-rom.c

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/* Remote debugging interface to m32r and mon2000 ROM monitors for GDB,
the GNU debugger.
Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2004, 2005, 2007, 2008,
2009 Free Software Foundation, Inc.
Adapted by Michael Snyder of Cygnus Support.
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/>. */
/* This module defines communication with the Renesas m32r monitor */
#include "defs.h"
#include "gdbcore.h"
#include "target.h"
#include "exceptions.h"
#include "monitor.h"
#include "serial.h"
#include "symtab.h"
#include "command.h"
#include "gdbcmd.h"
#include "symfile.h" /* for generic load */
#include <sys/time.h>
#include <time.h> /* for time_t */
#include "gdb_string.h"
#include "objfiles.h" /* for ALL_OBJFILES etc. */
#include "inferior.h"
#include <ctype.h>
#include "regcache.h"
/*
* All this stuff just to get my host computer's IP address!
*/
#ifdef __MINGW32__
#include <winsock.h>
#else
#include <sys/types.h>
#include <netdb.h> /* for hostent */
#include <netinet/in.h> /* for struct in_addr */
#if 1
#include <arpa/inet.h> /* for inet_ntoa */
#endif
#endif
static char *board_addr; /* user-settable IP address for M32R-EVA */
static char *server_addr; /* user-settable IP address for gdb host */
static char *download_path; /* user-settable path for SREC files */
/* REGNUM */
#define PSW_REGNUM 16
#define SPI_REGNUM 18
#define SPU_REGNUM 19
#define ACCL_REGNUM 22
#define ACCH_REGNUM 23
/*
* Function: m32r_load_1 (helper function)
*/
static void
m32r_load_section (bfd *abfd, asection *s, void *obj)
{
unsigned int *data_count = obj;
if (s->flags & SEC_LOAD)
{
int addr_size = gdbarch_addr_bit (target_gdbarch) / 8;
bfd_size_type section_size = bfd_section_size (abfd, s);
bfd_vma section_base = bfd_section_lma (abfd, s);
unsigned int buffer, i;
*data_count += section_size;
printf_filtered ("Loading section %s, size 0x%lx lma ",
bfd_section_name (abfd, s),
(unsigned long) section_size);
fputs_filtered (paddress (target_gdbarch, section_base), gdb_stdout);
printf_filtered ("\n");
gdb_flush (gdb_stdout);
monitor_printf ("%s mw\r", phex_nz (section_base, addr_size));
for (i = 0; i < section_size; i += 4)
{
QUIT;
monitor_expect (" -> ", NULL, 0);
bfd_get_section_contents (abfd, s, (char *) &buffer, i, 4);
monitor_printf ("%x\n", buffer);
}
monitor_expect (" -> ", NULL, 0);
monitor_printf ("q\n");
monitor_expect_prompt (NULL, 0);
}
}
static int
m32r_load_1 (void *dummy)
{
int data_count = 0;
bfd_map_over_sections ((bfd *) dummy, m32r_load_section, &data_count);
return data_count;
}
/*
* Function: m32r_load (an alternate way to load)
*/
static void
m32r_load (char *filename, int from_tty)
{
bfd *abfd;
asection *s;
unsigned int i, data_count = 0;
struct timeval start_time, end_time;
if (filename == NULL || filename[0] == 0)
filename = get_exec_file (1);
abfd = bfd_openr (filename, 0);
if (!abfd)
error (_("Unable to open file %s."), filename);
if (bfd_check_format (abfd, bfd_object) == 0)
error (_("File is not an object file."));
gettimeofday (&start_time, NULL);
#if 0
for (s = abfd->sections; s; s = s->next)
if (s->flags & SEC_LOAD)
{
bfd_size_type section_size = bfd_section_size (abfd, s);
bfd_vma section_base = bfd_section_vma (abfd, s);
unsigned int buffer;
data_count += section_size;
printf_filtered ("Loading section %s, size 0x%lx vma ",
bfd_section_name (abfd, s), section_size);
fputs_filtered (paddress (target_gdbarch, section_base), gdb_stdout);
printf_filtered ("\n");
gdb_flush (gdb_stdout);
monitor_printf ("%x mw\r", section_base);
for (i = 0; i < section_size; i += 4)
{
monitor_expect (" -> ", NULL, 0);
bfd_get_section_contents (abfd, s, (char *) &buffer, i, 4);
monitor_printf ("%x\n", buffer);
}
monitor_expect (" -> ", NULL, 0);
monitor_printf ("q\n");
monitor_expect_prompt (NULL, 0);
}
#else
if (!(catch_errors (m32r_load_1, abfd, "Load aborted!\n", RETURN_MASK_ALL)))
{
monitor_printf ("q\n");
return;
}
#endif
gettimeofday (&end_time, NULL);
printf_filtered ("Start address 0x%lx\n",
(unsigned long) bfd_get_start_address (abfd));
print_transfer_performance (gdb_stdout, data_count, 0, &start_time,
&end_time);
/* Finally, make the PC point at the start address */
if (exec_bfd)
regcache_write_pc (get_current_regcache (),
bfd_get_start_address (exec_bfd));
inferior_ptid = null_ptid; /* No process now */
/* This is necessary because many things were based on the PC at the
time that we attached to the monitor, which is no longer valid
now that we have loaded new code (and just changed the PC).
Another way to do this might be to call normal_stop, except that
the stack may not be valid, and things would get horribly
confused... */
clear_symtab_users ();
}
static void
m32r_load_gen (char *filename, int from_tty)
{
generic_load (filename, from_tty);
}
static void m32r_open (char *args, int from_tty);
static void mon2000_open (char *args, int from_tty);
/* This array of registers needs to match the indexes used by GDB. The
whole reason this exists is because the various ROM monitors use
different names than GDB does, and don't support all the registers
either. So, typing "info reg sp" becomes an "A7". */
static char *m32r_regnames[] =
{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
"psw", "cbr", "spi", "spu", "bpc", "pc", "accl", "acch",
};
static void
m32r_supply_register (struct regcache *regcache, char *regname,
int regnamelen, char *val, int vallen)
{
int regno;
int num_regs = sizeof (m32r_regnames) / sizeof (m32r_regnames[0]);
struct gdbarch *gdbarch = get_regcache_arch (regcache);
for (regno = 0; regno < num_regs; regno++)
if (strncmp (regname, m32r_regnames[regno], regnamelen) == 0)
break;
if (regno >= num_regs)
return; /* no match */
if (regno == ACCL_REGNUM)
{ /* special handling for 64-bit acc reg */
monitor_supply_register (regcache, ACCH_REGNUM, val);
val = strchr (val, ':'); /* skip past ':' to get 2nd word */
if (val != NULL)
monitor_supply_register (regcache, ACCL_REGNUM, val + 1);
}
else
{
monitor_supply_register (regcache, regno, val);
if (regno == PSW_REGNUM)
{
unsigned long psw = strtoul (val, NULL, 16);
char *zero = "00000000", *one = "00000001";
#ifdef SM_REGNUM
/* Stack mode bit */
monitor_supply_register (regcache, SM_REGNUM, (psw & 0x80) ? one : zero);
#endif
#ifdef BSM_REGNUM
/* Backup stack mode bit */
monitor_supply_register (regcache, BSM_REGNUM, (psw & 0x8000) ? one : zero);
#endif
#ifdef IE_REGNUM
/* Interrupt enable bit */
monitor_supply_register (regcache, IE_REGNUM, (psw & 0x40) ? one : zero);
#endif
#ifdef BIE_REGNUM
/* Backup interrupt enable bit */
monitor_supply_register (regcache, BIE_REGNUM, (psw & 0x4000) ? one : zero);
#endif
#ifdef COND_REGNUM
/* Condition bit (carry etc.) */
monitor_supply_register (regcache, COND_REGNUM, (psw & 0x1) ? one : zero);
#endif
#ifdef CBR_REGNUM
monitor_supply_register (regcache, CBR_REGNUM, (psw & 0x1) ? one : zero);
#endif
#ifdef BPC_REGNUM
monitor_supply_register (regcache, BPC_REGNUM, zero); /* KLUDGE: (???????) */
#endif
#ifdef BCARRY_REGNUM
monitor_supply_register (regcache, BCARRY_REGNUM, zero); /* KLUDGE: (??????) */
#endif
}
if (regno == SPI_REGNUM || regno == SPU_REGNUM)
{ /* special handling for stack pointer (spu or spi) */
ULONGEST stackmode, psw;
regcache_cooked_read_unsigned (regcache, PSW_REGNUM, &psw);
stackmode = psw & 0x80;
if (regno == SPI_REGNUM && !stackmode) /* SP == SPI */
monitor_supply_register (regcache,
gdbarch_sp_regnum (gdbarch), val);
else if (regno == SPU_REGNUM && stackmode) /* SP == SPU */
monitor_supply_register (regcache,
gdbarch_sp_regnum (gdbarch), val);
}
}
}
/* m32r RevC board monitor */
static struct target_ops m32r_ops;
static char *m32r_inits[] = { "\r", NULL };
static struct monitor_ops m32r_cmds;
static void
init_m32r_cmds (void)
{
m32r_cmds.flags = MO_CLR_BREAK_USES_ADDR | MO_REGISTER_VALUE_FIRST;
m32r_cmds.init = m32r_inits; /* Init strings */
m32r_cmds.cont = "go\r"; /* continue command */
m32r_cmds.step = "step\r"; /* single step */
m32r_cmds.stop = NULL; /* interrupt command */
m32r_cmds.set_break = "%x +bp\r"; /* set a breakpoint */
m32r_cmds.clr_break = "%x -bp\r"; /* clear a breakpoint */
m32r_cmds.clr_all_break = "bpoff\r"; /* clear all breakpoints */
m32r_cmds.fill = "%x %x %x fill\r"; /* fill (start length val) */
m32r_cmds.setmem.cmdb = "%x 1 %x fill\r"; /* setmem.cmdb (addr, value) */
m32r_cmds.setmem.cmdw = "%x 1 %x fillh\r"; /* setmem.cmdw (addr, value) */
m32r_cmds.setmem.cmdl = "%x 1 %x fillw\r"; /* setmem.cmdl (addr, value) */
m32r_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */
m32r_cmds.setmem.resp_delim = NULL; /* setmem.resp_delim */
m32r_cmds.setmem.term = NULL; /* setmem.term */
m32r_cmds.setmem.term_cmd = NULL; /* setmem.term_cmd */
m32r_cmds.getmem.cmdb = "%x %x dump\r"; /* getmem.cmdb (addr, len) */
m32r_cmds.getmem.cmdw = NULL; /* getmem.cmdw (addr, len) */
m32r_cmds.getmem.cmdl = NULL; /* getmem.cmdl (addr, len) */
m32r_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, len) */
m32r_cmds.getmem.resp_delim = ": "; /* getmem.resp_delim */
m32r_cmds.getmem.term = NULL; /* getmem.term */
m32r_cmds.getmem.term_cmd = NULL; /* getmem.term_cmd */
m32r_cmds.setreg.cmd = "%x to %%%s\r"; /* setreg.cmd (name, value) */
m32r_cmds.setreg.resp_delim = NULL; /* setreg.resp_delim */
m32r_cmds.setreg.term = NULL; /* setreg.term */
m32r_cmds.setreg.term_cmd = NULL; /* setreg.term_cmd */
m32r_cmds.getreg.cmd = NULL; /* getreg.cmd (name) */
m32r_cmds.getreg.resp_delim = NULL; /* getreg.resp_delim */
m32r_cmds.getreg.term = NULL; /* getreg.term */
m32r_cmds.getreg.term_cmd = NULL; /* getreg.term_cmd */
m32r_cmds.dump_registers = ".reg\r"; /* dump_registers */
m32r_cmds.register_pattern = "\\(\\w+\\) += \\([0-9a-fA-F]+\\b\\)"; /* register_pattern */
m32r_cmds.supply_register = m32r_supply_register;
m32r_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */
m32r_cmds.load = NULL; /* download command */
m32r_cmds.loadresp = NULL; /* load response */
m32r_cmds.prompt = "ok "; /* monitor command prompt */
m32r_cmds.line_term = "\r"; /* end-of-line terminator */
m32r_cmds.cmd_end = NULL; /* optional command terminator */
m32r_cmds.target = &m32r_ops; /* target operations */
m32r_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */
m32r_cmds.regnames = m32r_regnames; /* registers names */
m32r_cmds.magic = MONITOR_OPS_MAGIC; /* magic */
} /* init_m32r_cmds */
static void
m32r_open (char *args, int from_tty)
{
monitor_open (args, &m32r_cmds, from_tty);
}
/* Mon2000 monitor (MSA2000 board) */
static struct target_ops mon2000_ops;
static struct monitor_ops mon2000_cmds;
static void
init_mon2000_cmds (void)
{
mon2000_cmds.flags = MO_CLR_BREAK_USES_ADDR | MO_REGISTER_VALUE_FIRST;
mon2000_cmds.init = m32r_inits; /* Init strings */
mon2000_cmds.cont = "go\r"; /* continue command */
mon2000_cmds.step = "step\r"; /* single step */
mon2000_cmds.stop = NULL; /* interrupt command */
mon2000_cmds.set_break = "%x +bp\r"; /* set a breakpoint */
mon2000_cmds.clr_break = "%x -bp\r"; /* clear a breakpoint */
mon2000_cmds.clr_all_break = "bpoff\r"; /* clear all breakpoints */
mon2000_cmds.fill = "%x %x %x fill\r"; /* fill (start length val) */
mon2000_cmds.setmem.cmdb = "%x 1 %x fill\r"; /* setmem.cmdb (addr, value) */
mon2000_cmds.setmem.cmdw = "%x 1 %x fillh\r"; /* setmem.cmdw (addr, value) */
mon2000_cmds.setmem.cmdl = "%x 1 %x fillw\r"; /* setmem.cmdl (addr, value) */
mon2000_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */
mon2000_cmds.setmem.resp_delim = NULL; /* setmem.resp_delim */
mon2000_cmds.setmem.term = NULL; /* setmem.term */
mon2000_cmds.setmem.term_cmd = NULL; /* setmem.term_cmd */
mon2000_cmds.getmem.cmdb = "%x %x dump\r"; /* getmem.cmdb (addr, len) */
mon2000_cmds.getmem.cmdw = NULL; /* getmem.cmdw (addr, len) */
mon2000_cmds.getmem.cmdl = NULL; /* getmem.cmdl (addr, len) */
mon2000_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, len) */
mon2000_cmds.getmem.resp_delim = ": "; /* getmem.resp_delim */
mon2000_cmds.getmem.term = NULL; /* getmem.term */
mon2000_cmds.getmem.term_cmd = NULL; /* getmem.term_cmd */
mon2000_cmds.setreg.cmd = "%x to %%%s\r"; /* setreg.cmd (name, value) */
mon2000_cmds.setreg.resp_delim = NULL; /* setreg.resp_delim */
mon2000_cmds.setreg.term = NULL; /* setreg.term */
mon2000_cmds.setreg.term_cmd = NULL; /* setreg.term_cmd */
mon2000_cmds.getreg.cmd = NULL; /* getreg.cmd (name) */
mon2000_cmds.getreg.resp_delim = NULL; /* getreg.resp_delim */
mon2000_cmds.getreg.term = NULL; /* getreg.term */
mon2000_cmds.getreg.term_cmd = NULL; /* getreg.term_cmd */
mon2000_cmds.dump_registers = ".reg\r"; /* dump_registers */
mon2000_cmds.register_pattern = "\\(\\w+\\) += \\([0-9a-fA-F]+\\b\\)"; /* register_pattern */
mon2000_cmds.supply_register = m32r_supply_register;
mon2000_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */
mon2000_cmds.load = NULL; /* download command */
mon2000_cmds.loadresp = NULL; /* load response */
mon2000_cmds.prompt = "Mon2000>"; /* monitor command prompt */
mon2000_cmds.line_term = "\r"; /* end-of-line terminator */
mon2000_cmds.cmd_end = NULL; /* optional command terminator */
mon2000_cmds.target = &mon2000_ops; /* target operations */
mon2000_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */
mon2000_cmds.regnames = m32r_regnames; /* registers names */
mon2000_cmds.magic = MONITOR_OPS_MAGIC; /* magic */
} /* init_mon2000_cmds */
static void
mon2000_open (char *args, int from_tty)
{
monitor_open (args, &mon2000_cmds, from_tty);
}
static void
m32r_upload_command (char *args, int from_tty)
{
bfd *abfd;
asection *s;
struct timeval start_time, end_time;
int resp_len, data_count = 0;
char buf[1024];
struct hostent *hostent;
struct in_addr inet_addr;
/* first check to see if there's an ethernet port! */
monitor_printf ("ust\r");
resp_len = monitor_expect_prompt (buf, sizeof (buf));
if (!strchr (buf, ':'))
error (_("No ethernet connection!"));
if (board_addr == 0)
{
/* scan second colon in the output from the "ust" command */
char *myIPaddress = strchr (strchr (buf, ':') + 1, ':') + 1;
while (isspace (*myIPaddress))
myIPaddress++;
if (!strncmp (myIPaddress, "0.0.", 4)) /* empty */
error
("Please use 'set board-address' to set the M32R-EVA board's IP address.");
if (strchr (myIPaddress, '('))
*(strchr (myIPaddress, '(')) = '\0'; /* delete trailing junk */
board_addr = xstrdup (myIPaddress);
}
if (server_addr == 0)
{
#ifdef __MINGW32__
WSADATA wd;
/* Winsock initialization. */
if (WSAStartup (MAKEWORD (1, 1), &wd))
error (_("Couldn't initialize WINSOCK."));
#endif
buf[0] = 0;
gethostname (buf, sizeof (buf));
if (buf[0] != 0)
{
hostent = gethostbyname (buf);
if (hostent != 0)
{
#if 1
memcpy (&inet_addr.s_addr, hostent->h_addr,
sizeof (inet_addr.s_addr));
server_addr = (char *) inet_ntoa (inet_addr);
#else
server_addr = (char *) inet_ntoa (hostent->h_addr);
#endif
}
}
if (server_addr == 0) /* failed? */
error
("Need to know gdb host computer's IP address (use 'set server-address')");
}
if (args == 0 || args[0] == 0) /* no args: upload the current file */
args = get_exec_file (1);
if (args[0] != '/' && download_path == 0)
{
if (current_directory)
download_path = xstrdup (current_directory);
else
error
("Need to know default download path (use 'set download-path')");
}
gettimeofday (&start_time, NULL);
monitor_printf ("uhip %s\r", server_addr);
resp_len = monitor_expect_prompt (buf, sizeof (buf)); /* parse result? */
monitor_printf ("ulip %s\r", board_addr);
resp_len = monitor_expect_prompt (buf, sizeof (buf)); /* parse result? */
if (args[0] != '/')
monitor_printf ("up %s\r", download_path); /* use default path */
else
monitor_printf ("up\r"); /* rooted filename/path */
resp_len = monitor_expect_prompt (buf, sizeof (buf)); /* parse result? */
if (strrchr (args, '.') && !strcmp (strrchr (args, '.'), ".srec"))
monitor_printf ("ul %s\r", args);
else /* add ".srec" suffix */
monitor_printf ("ul %s.srec\r", args);
resp_len = monitor_expect_prompt (buf, sizeof (buf)); /* parse result? */
if (buf[0] == 0 || strstr (buf, "complete") == 0)
error
("Upload file not found: %s.srec\nCheck IP addresses and download path.",
args);
else
printf_filtered (" -- Ethernet load complete.\n");
gettimeofday (&end_time, NULL);
abfd = bfd_openr (args, 0);
if (abfd != NULL)
{ /* Download is done -- print section statistics */
if (bfd_check_format (abfd, bfd_object) == 0)
{
printf_filtered ("File is not an object file\n");
}
for (s = abfd->sections; s; s = s->next)
if (s->flags & SEC_LOAD)
{
bfd_size_type section_size = bfd_section_size (abfd, s);
bfd_vma section_base = bfd_section_lma (abfd, s);
unsigned int buffer;
data_count += section_size;
printf_filtered ("Loading section %s, size 0x%lx lma ",
bfd_section_name (abfd, s),
(unsigned long) section_size);
fputs_filtered (paddress (target_gdbarch, section_base),
gdb_stdout);
printf_filtered ("\n");
gdb_flush (gdb_stdout);
}
/* Finally, make the PC point at the start address */
regcache_write_pc (get_current_regcache (),
bfd_get_start_address (abfd));
printf_filtered ("Start address 0x%lx\n",
(unsigned long) bfd_get_start_address (abfd));
print_transfer_performance (gdb_stdout, data_count, 0, &start_time,
&end_time);
}
inferior_ptid = null_ptid; /* No process now */
/* This is necessary because many things were based on the PC at the
time that we attached to the monitor, which is no longer valid
now that we have loaded new code (and just changed the PC).
Another way to do this might be to call normal_stop, except that
the stack may not be valid, and things would get horribly
confused... */
clear_symtab_users ();
}
/* Provide a prototype to silence -Wmissing-prototypes. */
extern initialize_file_ftype _initialize_m32r_rom;
void
_initialize_m32r_rom (void)
{
/* Initialize m32r RevC monitor target */
init_m32r_cmds ();
init_monitor_ops (&m32r_ops);
m32r_ops.to_shortname = "m32r";
m32r_ops.to_longname = "m32r monitor";
m32r_ops.to_load = m32r_load_gen; /* monitor lacks a download command */
m32r_ops.to_doc = "Debug via the m32r monitor.\n\
Specify the serial device it is connected to (e.g. /dev/ttya).";
m32r_ops.to_open = m32r_open;
add_target (&m32r_ops);
/* Initialize mon2000 monitor target */
init_mon2000_cmds ();
init_monitor_ops (&mon2000_ops);
mon2000_ops.to_shortname = "mon2000";
mon2000_ops.to_longname = "Mon2000 monitor";
mon2000_ops.to_load = m32r_load_gen; /* monitor lacks a download command */
mon2000_ops.to_doc = "Debug via the Mon2000 monitor.\n\
Specify the serial device it is connected to (e.g. /dev/ttya).";
mon2000_ops.to_open = mon2000_open;
add_target (&mon2000_ops);
add_setshow_string_cmd ("download-path", class_obscure, &download_path, _("\
Set the default path for downloadable SREC files."), _("\
Show the default path for downloadable SREC files."), _("\
Determines the default path for downloadable SREC files."),
NULL,
NULL, /* FIXME: i18n: The default path for downloadable SREC files is %s. */
&setlist, &showlist);
add_setshow_string_cmd ("board-address", class_obscure, &board_addr, _("\
Set IP address for M32R-EVA target board."), _("\
Show IP address for M32R-EVA target board."), _("\
Determine the IP address for M32R-EVA target board."),
NULL,
NULL, /* FIXME: i18n: IP address for M32R-EVA target board is %s. */
&setlist, &showlist);
add_setshow_string_cmd ("server-address", class_obscure, &server_addr, _("\
Set IP address for download server (GDB's host computer)."), _("\
Show IP address for download server (GDB's host computer)."), _("\
Determine the IP address for download server (GDB's host computer)."),
NULL,
NULL, /* FIXME: i18n: IP address for download server (GDB's host computer) is %s. */
&setlist, &showlist);
add_com ("upload", class_obscure, m32r_upload_command, _("\
Upload the srec file via the monitor's Ethernet upload capability."));
add_com ("tload", class_obscure, m32r_load, _("test upload command."));
}
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