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Diffstat (limited to 'gdb/remote-bug.c')
| -rw-r--r-- | gdb/remote-bug.c | 1099 |
1 files changed, 1099 insertions, 0 deletions
diff --git a/gdb/remote-bug.c b/gdb/remote-bug.c new file mode 100644 index 0000000..2efd710 --- /dev/null +++ b/gdb/remote-bug.c @@ -0,0 +1,1099 @@ +/* Remote debugging interface for Motorola's MVME187BUG monitor, an embedded + monitor for the m88k. + + Copyright 1992, 1993 Free Software Foundation, Inc. + Contributed by Cygnus Support. Written by K. Richard Pixley. + +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 2 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, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include "defs.h" +#include "inferior.h" +#include "wait.h" + +#include "gdb_string.h" +#include <ctype.h> +#include <fcntl.h> +#include <signal.h> +#include <setjmp.h> +#include <errno.h> + +#include "terminal.h" +#include "gdbcore.h" +#include "gdbcmd.h" + +#include "remote-utils.h" + + +extern int sleep(); + +/* External data declarations */ +extern int stop_soon_quietly; /* for wait_for_inferior */ + +/* Forward data declarations */ +extern struct target_ops bug_ops; /* Forward declaration */ + +/* Forward function declarations */ +static int bug_clear_breakpoints PARAMS((void)); + +static int bug_read_memory PARAMS((CORE_ADDR memaddr, + unsigned char *myaddr, + int len)); + +static int bug_write_memory PARAMS((CORE_ADDR memaddr, + unsigned char *myaddr, + int len)); + +/* This variable is somewhat arbitrary. It's here so that it can be + set from within a running gdb. */ + +static int srec_max_retries = 3; + +/* Each S-record download to the target consists of an S0 header + record, some number of S3 data records, and one S7 termination + record. I call this download a "frame". Srec_frame says how many + bytes will be represented in each frame. */ + +#define SREC_SIZE 160 +static int srec_frame = SREC_SIZE; + +/* This variable determines how many bytes will be represented in each + S3 s-record. */ + +static int srec_bytes = 40; + +/* At one point it appeared to me as though the bug monitor could not + really be expected to receive two sequential characters at 9600 + baud reliably. Echo-pacing is an attempt to force data across the + line even in this condition. Specifically, in echo-pace mode, each + character is sent one at a time and we look for the echo before + sending the next. This is excruciatingly slow. */ + +static int srec_echo_pace = 0; + +/* How long to wait after an srec for a possible error message. + Similar to the above, I tried sleeping after sending each S3 record + in hopes that I might actually see error messages from the bug + monitor. This might actually work if we were to use sleep + intervals smaller than 1 second. */ + +static int srec_sleep = 0; + +/* Every srec_noise records, flub the checksum. This is a debugging + feature. Set the variable to something other than 1 in order to + inject *deliberate* checksum errors. One might do this if one + wanted to test error handling and recovery. */ + +static int srec_noise = 0; + +/* Called when SIGALRM signal sent due to alarm() timeout. */ + +/* Number of SIGTRAPs we need to simulate. That is, the next + NEED_ARTIFICIAL_TRAP calls to bug_wait should just return + SIGTRAP without actually waiting for anything. */ + +static int need_artificial_trap = 0; + +/* + * Download a file specified in 'args', to the bug. + */ + +static void +bug_load (args, fromtty) + char *args; + int fromtty; +{ + bfd *abfd; + asection *s; + char buffer[1024]; + + sr_check_open (); + + dcache_flush (gr_get_dcache()); + inferior_pid = 0; + abfd = bfd_openr (args, 0); + if (!abfd) + { + printf_filtered ("Unable to open file %s\n", args); + return; + } + + if (bfd_check_format (abfd, bfd_object) == 0) + { + printf_filtered ("File is not an object file\n"); + return; + } + + s = abfd->sections; + while (s != (asection *) NULL) + { + srec_frame = SREC_SIZE; + if (s->flags & SEC_LOAD) + { + int i; + + char *buffer = xmalloc (srec_frame); + + printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma, s->vma + s->_raw_size); + gdb_flush (gdb_stdout); + for (i = 0; i < s->_raw_size; i += srec_frame) + { + if (srec_frame > s->_raw_size - i) + srec_frame = s->_raw_size - i; + + bfd_get_section_contents (abfd, s, buffer, i, srec_frame); + bug_write_memory (s->vma + i, buffer, srec_frame); + printf_filtered ("*"); + gdb_flush (gdb_stdout); + } + printf_filtered ("\n"); + free (buffer); + } + s = s->next; + } + sprintf (buffer, "rs ip %lx", (unsigned long) abfd->start_address); + sr_write_cr (buffer); + gr_expect_prompt (); +} + +#if 0 +static char * +get_word (p) + char **p; +{ + char *s = *p; + char *word; + char *copy; + size_t len; + + while (isspace (*s)) + s++; + + word = s; + + len = 0; + + while (*s && !isspace (*s)) + { + s++; + len++; + + } + copy = xmalloc (len + 1); + memcpy (copy, word, len); + copy[len] = 0; + *p = s; + return copy; +} +#endif + +static struct gr_settings bug_settings = { + NULL, /* dcache */ + "Bug>", /* prompt */ + &bug_ops, /* ops */ + bug_clear_breakpoints, /* clear_all_breakpoints */ + bug_read_memory, /* readfunc */ + bug_write_memory, /* writefunc */ + gr_generic_checkin, /* checkin */ +}; + +static char *cpu_check_strings[] = { + "=", + "Invalid Register", +}; + +static void +bug_open (args, from_tty) + char *args; + int from_tty; +{ + if (args == NULL) + args = ""; + + gr_open(args, from_tty, &bug_settings); + /* decide *now* whether we are on an 88100 or an 88110 */ + sr_write_cr("rs cr06"); + sr_expect("rs cr06"); + + switch (gr_multi_scan(cpu_check_strings, 0)) + { + case 0: /* this is an m88100 */ + target_is_m88110 = 0; + break; + case 1: /* this is an m88110 */ + target_is_m88110 = 1; + break; + default: + abort(); + } +} + +/* Tell the remote machine to resume. */ + +void +bug_resume (pid, step, sig) + int pid, step; + enum target_signal sig; +{ + dcache_flush (gr_get_dcache()); + + if (step) + { + sr_write_cr("t"); + + /* Force the next bug_wait to return a trap. Not doing anything + about I/O from the target means that the user has to type + "continue" to see any. FIXME, this should be fixed. */ + need_artificial_trap = 1; + } + else + sr_write_cr ("g"); + + return; +} + +/* Wait until the remote machine stops, then return, + storing status in STATUS just as `wait' would. */ + +static char *wait_strings[] = { + "At Breakpoint", + "Exception: Data Access Fault (Local Bus Timeout)", + "\r8??\?-Bug>", /* The '\?' avoids creating a trigraph */ + "\r197-Bug>", + NULL, +}; + +int +bug_wait (pid, status) + int pid; + struct target_waitstatus *status; +{ + int old_timeout = sr_get_timeout(); + int old_immediate_quit = immediate_quit; + + status->kind = TARGET_WAITKIND_EXITED; + status->value.integer = 0; + + /* read off leftovers from resume so that the rest can be passed + back out as stdout. */ + if (need_artificial_trap == 0) + { + sr_expect("Effective address: "); + (void) sr_get_hex_word(); + sr_expect ("\r\n"); + } + + sr_set_timeout(-1); /* Don't time out -- user program is running. */ + immediate_quit = 1; /* Helps ability to QUIT */ + + switch (gr_multi_scan(wait_strings, need_artificial_trap == 0)) + { + case 0: /* breakpoint case */ + status->kind = TARGET_WAITKIND_STOPPED; + status->value.sig = TARGET_SIGNAL_TRAP; + /* user output from the target can be discarded here. (?) */ + gr_expect_prompt(); + break; + + case 1: /* bus error */ + status->kind = TARGET_WAITKIND_STOPPED; + status->value.sig = TARGET_SIGNAL_BUS; + /* user output from the target can be discarded here. (?) */ + gr_expect_prompt(); + break; + + case 2: /* normal case */ + case 3: + if (need_artificial_trap != 0) + { + /* stepping */ + status->kind = TARGET_WAITKIND_STOPPED; + status->value.sig = TARGET_SIGNAL_TRAP; + need_artificial_trap--; + break; + } + else + { + /* exit case */ + status->kind = TARGET_WAITKIND_EXITED; + status->value.integer = 0; + break; + } + + case -1: /* trouble */ + default: + fprintf_filtered (gdb_stderr, + "Trouble reading target during wait\n"); + break; + } + + sr_set_timeout(old_timeout); + immediate_quit = old_immediate_quit; + return 0; +} + +/* Return the name of register number REGNO + in the form input and output by bug. + + Returns a pointer to a static buffer containing the answer. */ +static char * +get_reg_name (regno) + int regno; +{ + static char *rn[] = { + "r00", "r01", "r02", "r03", "r04", "r05", "r06", "r07", + "r08", "r09", "r10", "r11", "r12", "r13", "r14", "r15", + "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", + "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", + + /* these get confusing because we omit a few and switch some ordering around. */ + + "cr01", /* 32 = psr */ + "fcr62", /* 33 = fpsr*/ + "fcr63", /* 34 = fpcr */ + "ip", /* this is something of a cheat. */ + /* 35 = sxip */ + "cr05", /* 36 = snip */ + "cr06", /* 37 = sfip */ + + "x00", "x01", "x02", "x03", "x04", "x05", "x06", "x07", + "x08", "x09", "x10", "x11", "x12", "x13", "x14", "x15", + "x16", "x17", "x18", "x19", "x20", "x21", "x22", "x23", + "x24", "x25", "x26", "x27", "x28", "x29", "x30", "x31", + }; + + return rn[regno]; +} + +#if 0 /* not currently used */ +/* Read from remote while the input matches STRING. Return zero on + success, -1 on failure. */ + +static int +bug_scan (s) + char *s; +{ + int c; + + while (*s) + { + c = sr_readchar(); + if (c != *s++) + { + fflush(stdout); + printf("\nNext character is '%c' - %d and s is \"%s\".\n", c, c, --s); + return(-1); + } + } + + return(0); +} +#endif /* never */ + +static int +bug_srec_write_cr (s) + char *s; +{ + char *p = s; + + if (srec_echo_pace) + for (p = s; *p; ++p) + { + if (sr_get_debug() > 0) + printf ("%c", *p); + + do + SERIAL_WRITE(sr_get_desc(), p, 1); + while (sr_pollchar() != *p); + } + else + { + sr_write_cr (s); +/* return(bug_scan (s) || bug_scan ("\n")); */ + } + + return(0); +} + +/* Store register REGNO, or all if REGNO == -1. */ + +static void +bug_fetch_register(regno) + int regno; +{ + sr_check_open(); + + if (regno == -1) + { + int i; + + for (i = 0; i < NUM_REGS; ++i) + bug_fetch_register(i); + } + else if (target_is_m88110 && regno == SFIP_REGNUM) + { + /* m88110 has no sfip. */ + long l = 0; + supply_register(regno, (char *) &l); + } + else if (regno < XFP_REGNUM) + { + char buffer[MAX_REGISTER_RAW_SIZE]; + + sr_write ("rs ", 3); + sr_write_cr (get_reg_name(regno)); + sr_expect ("="); + store_unsigned_integer (buffer, REGISTER_RAW_SIZE (regno), + sr_get_hex_word()); + gr_expect_prompt (); + supply_register (regno, buffer); + } + else + { + /* Float register so we need to parse a strange data format. */ + long p; + unsigned char fpreg_buf[10]; + + sr_write("rs ", 3); + sr_write(get_reg_name(regno), strlen(get_reg_name(regno))); + sr_write_cr(";d"); + sr_expect("rs"); + sr_expect(get_reg_name(regno)); + sr_expect(";d"); + sr_expect("="); + + /* sign */ + p = sr_get_hex_digit(1); + fpreg_buf[0] = p << 7; + + /* exponent */ + sr_expect("_"); + p = sr_get_hex_digit(1); + fpreg_buf[0] += (p << 4); + fpreg_buf[0] += sr_get_hex_digit(1); + + fpreg_buf[1] = sr_get_hex_digit(1) << 4; + + /* fraction */ + sr_expect("_"); + fpreg_buf[1] += sr_get_hex_digit(1); + + fpreg_buf[2] = (sr_get_hex_digit(1) << 4) + sr_get_hex_digit(1); + fpreg_buf[3] = (sr_get_hex_digit(1) << 4) + sr_get_hex_digit(1); + fpreg_buf[4] = (sr_get_hex_digit(1) << 4) + sr_get_hex_digit(1); + fpreg_buf[5] = (sr_get_hex_digit(1) << 4) + sr_get_hex_digit(1); + fpreg_buf[6] = (sr_get_hex_digit(1) << 4) + sr_get_hex_digit(1); + fpreg_buf[7] = (sr_get_hex_digit(1) << 4) + sr_get_hex_digit(1); + fpreg_buf[8] = 0; + fpreg_buf[9] = 0; + + gr_expect_prompt(); + supply_register(regno, fpreg_buf); + } + + return; +} + +/* Store register REGNO, or all if REGNO == -1. */ + +static void +bug_store_register (regno) + int regno; +{ + char buffer[1024]; + sr_check_open(); + + if (regno == -1) + { + int i; + + for (i = 0; i < NUM_REGS; ++i) + bug_store_register(i); + } + else + { + char *regname; + + regname = get_reg_name(regno); + + if (target_is_m88110 && regno == SFIP_REGNUM) + return; + else if (regno < XFP_REGNUM) + sprintf(buffer, "rs %s %08x", + regname, + read_register(regno)); + else + { + unsigned char *fpreg_buf = + (unsigned char *)®isters[REGISTER_BYTE(regno)]; + + sprintf(buffer, "rs %s %1x_%02x%1x_%1x%02x%02x%02x%02x%02x%02x;d", + regname, + /* sign */ + (fpreg_buf[0] >> 7) & 0xf, + /* exponent */ + fpreg_buf[0] & 0x7f, + (fpreg_buf[1] >> 8) & 0xf, + /* fraction */ + fpreg_buf[1] & 0xf, + fpreg_buf[2], + fpreg_buf[3], + fpreg_buf[4], + fpreg_buf[5], + fpreg_buf[6], + fpreg_buf[7]); + } + + sr_write_cr(buffer); + gr_expect_prompt(); + } + + return; +} + +int +bug_xfer_memory (memaddr, myaddr, len, write, target) + CORE_ADDR memaddr; + char *myaddr; + int len; + int write; + struct target_ops *target; /* ignored */ +{ + register int i; + + /* Round starting address down to longword boundary. */ + register CORE_ADDR addr; + + /* Round ending address up; get number of longwords that makes. */ + register int count; + + /* Allocate buffer of that many longwords. */ + register int *buffer; + + addr = memaddr & -sizeof (int); + count = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); + + buffer = (int *) alloca (count * sizeof (int)); + + if (write) + { + /* Fill start and end extra bytes of buffer with existing memory data. */ + + if (addr != memaddr || len < (int) sizeof (int)) + { + /* Need part of initial word -- fetch it. */ + buffer[0] = gr_fetch_word (addr); + } + + if (count > 1) /* FIXME, avoid if even boundary */ + { + buffer[count - 1] + = gr_fetch_word (addr + (count - 1) * sizeof (int)); + } + + /* Copy data to be written over corresponding part of buffer */ + + memcpy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); + + /* Write the entire buffer. */ + + for (i = 0; i < count; i++, addr += sizeof (int)) + { + errno = 0; + gr_store_word (addr, buffer[i]); + if (errno) + { + + return 0; + } + + } + } + else + { + /* Read all the longwords */ + for (i = 0; i < count; i++, addr += sizeof (int)) + { + errno = 0; + buffer[i] = gr_fetch_word (addr); + if (errno) + { + return 0; + } + QUIT; + } + + /* Copy appropriate bytes out of the buffer. */ + memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); + } + + return len; +} + +static void +start_load() +{ + char *command; + + command = (srec_echo_pace ? "lo 0 ;x" : "lo 0"); + + sr_write_cr (command); + sr_expect (command); + sr_expect ("\r\n"); + bug_srec_write_cr ("S0030000FC"); + return; +} + +/* This is an extremely vulnerable and fragile function. I've made + considerable attempts to make this deterministic, but I've + certainly forgotten something. The trouble is that S-records are + only a partial file format, not a protocol. Worse, apparently the + m88k bug monitor does not run in real time while receiving + S-records. Hence, we must pay excruciating attention to when and + where error messages are returned, and what has actually been sent. + + Each call represents a chunk of memory to be sent to the target. + We break that chunk into an S0 header record, some number of S3 + data records each containing srec_bytes, and an S7 termination + record. */ + +static char *srecord_strings[] = { + "S-RECORD", + "-Bug>", + NULL, +}; + +static int +bug_write_memory (memaddr, myaddr, len) + CORE_ADDR memaddr; + unsigned char *myaddr; + int len; +{ + int done; + int checksum; + int x; + int retries; + char *buffer = alloca ((srec_bytes + 8) << 1); + + retries = 0; + + do + { + done = 0; + + if (retries > srec_max_retries) + return(-1); + + if (retries > 0) + { + if (sr_get_debug() > 0) + printf("\n<retrying...>\n"); + + /* This gr_expect_prompt call is extremely important. Without + it, we will tend to resend our packet so fast that it + will arrive before the bug monitor is ready to receive + it. This would lead to a very ugly resend loop. */ + + gr_expect_prompt(); + } + + start_load(); + + while (done < len) + { + int thisgo; + int idx; + char *buf = buffer; + CORE_ADDR address; + + checksum = 0; + thisgo = len - done; + if (thisgo > srec_bytes) + thisgo = srec_bytes; + + address = memaddr + done; + sprintf (buf, "S3%02X%08X", thisgo + 4 + 1, address); + buf += 12; + + checksum += (thisgo + 4 + 1 + + (address & 0xff) + + ((address >> 8) & 0xff) + + ((address >> 16) & 0xff) + + ((address >> 24) & 0xff)); + + for (idx = 0; idx < thisgo; idx++) + { + sprintf (buf, "%02X", myaddr[idx + done]); + checksum += myaddr[idx + done]; + buf += 2; + } + + if (srec_noise > 0) + { + /* FIXME-NOW: insert a deliberate error every now and then. + This is intended for testing/debugging the error handling + stuff. */ + static int counter = 0; + if (++counter > srec_noise) + { + counter = 0; + ++checksum; + } + } + + sprintf(buf, "%02X", ~checksum & 0xff); + bug_srec_write_cr (buffer); + + if (srec_sleep != 0) + sleep(srec_sleep); + + /* This pollchar is probably redundant to the gr_multi_scan + below. Trouble is, we can't be sure when or where an + error message will appear. Apparently, when running at + full speed from a typical sun4, error messages tend to + appear to arrive only *after* the s7 record. */ + + if ((x = sr_pollchar()) != 0) + { + if (sr_get_debug() > 0) + printf("\n<retrying...>\n"); + + ++retries; + + /* flush any remaining input and verify that we are back + at the prompt level. */ + gr_expect_prompt(); + /* start all over again. */ + start_load(); + done = 0; + continue; + } + + done += thisgo; + } + + bug_srec_write_cr("S7060000000000F9"); + ++retries; + + /* Having finished the load, we need to figure out whether we + had any errors. */ + } while (gr_multi_scan(srecord_strings, 0) == 0);; + + return(0); +} + +/* Copy LEN bytes of data from debugger memory at MYADDR + to inferior's memory at MEMADDR. Returns errno value. + * sb/sh instructions don't work on unaligned addresses, when TU=1. + */ + +/* Read LEN bytes from inferior memory at MEMADDR. Put the result + at debugger address MYADDR. Returns errno value. */ +static int +bug_read_memory (memaddr, myaddr, len) + CORE_ADDR memaddr; + unsigned char *myaddr; + int len; +{ + char request[100]; + char *buffer; + char *p; + char type; + char size; + unsigned char c; + unsigned int inaddr; + unsigned int checksum; + + sprintf(request, "du 0 %x:&%d", memaddr, len); + sr_write_cr(request); + + p = buffer = alloca(len); + + /* scan up through the header */ + sr_expect("S0030000FC"); + + while (p < buffer + len) + { + /* scan off any white space. */ + while (sr_readchar() != 'S') ;; + + /* what kind of s-rec? */ + type = sr_readchar(); + + /* scan record size */ + sr_get_hex_byte(&size); + checksum = size; + --size; + inaddr = 0; + + switch (type) + { + case '7': + case '8': + case '9': + goto done; + + case '3': + sr_get_hex_byte(&c); + inaddr = (inaddr << 8) + c; + checksum += c; + --size; + /* intentional fall through */ + case '2': + sr_get_hex_byte(&c); + inaddr = (inaddr << 8) + c; + checksum += c; + --size; + /* intentional fall through */ + case '1': + sr_get_hex_byte(&c); + inaddr = (inaddr << 8) + c; + checksum += c; + --size; + sr_get_hex_byte(&c); + inaddr = (inaddr << 8) + c; + checksum += c; + --size; + break; + + default: + /* bonk */ + error("reading s-records."); + } + + if (inaddr < memaddr + || (memaddr + len) < (inaddr + size)) + error("srec out of memory range."); + + if (p != buffer + inaddr - memaddr) + error("srec out of sequence."); + + for (; size; --size, ++p) + { + sr_get_hex_byte(p); + checksum += *p; + } + + sr_get_hex_byte(&c); + if (c != (~checksum & 0xff)) + error("bad s-rec checksum"); + } + + done: + gr_expect_prompt(); + if (p != buffer + len) + return(1); + + memcpy(myaddr, buffer, len); + return(0); +} + +#define MAX_BREAKS 16 +static int num_brkpts = 0; +static int +bug_insert_breakpoint (addr, save) + CORE_ADDR addr; + char *save; /* Throw away, let bug save instructions */ +{ + sr_check_open (); + + if (num_brkpts < MAX_BREAKS) + { + char buffer[100]; + + num_brkpts++; + sprintf (buffer, "br %x", addr); + sr_write_cr (buffer); + gr_expect_prompt (); + return(0); + } + else + { + fprintf_filtered (gdb_stderr, + "Too many break points, break point not installed\n"); + return(1); + } + +} +static int +bug_remove_breakpoint (addr, save) + CORE_ADDR addr; + char *save; /* Throw away, let bug save instructions */ +{ + if (num_brkpts > 0) + { + char buffer[100]; + + num_brkpts--; + sprintf (buffer, "nobr %x", addr); + sr_write_cr (buffer); + gr_expect_prompt (); + + } + return (0); +} + +/* Clear the bugs notion of what the break points are */ +static int +bug_clear_breakpoints () +{ + + if (sr_is_open()) + { + sr_write_cr ("nobr"); + sr_expect("nobr"); + gr_expect_prompt (); + } + num_brkpts = 0; + return(0); +} + +struct target_ops bug_ops ; + +static void +init_bug_ops(void) +{ + bug_ops.to_shortname = "bug"; "Remote BUG monitor", + bug_ops.to_longname = "Use the mvme187 board running the BUG monitor connected by a serial line."; + bug_ops.to_doc = " "; + bug_ops.to_open = bug_open; + bug_ops.to_close = gr_close; + bug_ops.to_attach = 0; + bug_ops.to_post_attach = NULL; + bug_ops.to_require_attach = NULL; + bug_ops.to_detach = gr_detach; + bug_ops.to_require_detach = NULL; + bug_ops.to_resume = bug_resume; + bug_ops.to_wait = bug_wait; + bug_ops.to_post_wait = NULL; + bug_ops.to_fetch_registers = bug_fetch_register; + bug_ops.to_store_registers = bug_store_register; + bug_ops.to_prepare_to_store = gr_prepare_to_store; + bug_ops.to_xfer_memory = bug_xfer_memory; + bug_ops.to_files_info = gr_files_info; + bug_ops.to_insert_breakpoint = bug_insert_breakpoint; + bug_ops.to_remove_breakpoint = bug_remove_breakpoint; + bug_ops.to_terminal_init = 0; + bug_ops.to_terminal_inferior = 0; + bug_ops.to_terminal_ours_for_output = 0; + bug_ops.to_terminal_ours = 0; + bug_ops.to_terminal_info = 0; + bug_ops.to_kill = gr_kill; + bug_ops.to_load = bug_load; + bug_ops.to_lookup_symbol = 0; + bug_ops.to_create_inferior = gr_create_inferior; + bug_ops.to_post_startup_inferior = NULL; + bug_ops.to_acknowledge_created_inferior = NULL; + bug_ops.to_clone_and_follow_inferior = NULL; + bug_ops.to_post_follow_inferior_by_clone = NULL; + bug_ops.to_insert_fork_catchpoint = NULL; + bug_ops.to_remove_fork_catchpoint = NULL; + bug_ops.to_insert_vfork_catchpoint = NULL; + bug_ops.to_remove_vfork_catchpoint = NULL; + bug_ops.to_has_forked = NULL; + bug_ops.to_has_vforked = NULL; + bug_ops.to_can_follow_vfork_prior_to_exec = NULL; + bug_ops.to_post_follow_vfork = NULL; + bug_ops.to_insert_exec_catchpoint = NULL; + bug_ops.to_remove_exec_catchpoint = NULL; + bug_ops.to_has_execd = NULL; + bug_ops.to_reported_exec_events_per_exec_call = NULL; + bug_ops.to_has_exited = NULL; + bug_ops.to_mourn_inferior = gr_mourn; + bug_ops.to_can_run = 0; + bug_ops.to_notice_signals = 0; + bug_ops.to_thread_alive = 0 ; + bug_ops.to_stop = 0; + bug_ops.to_pid_to_exec_file = NULL; + bug_ops.to_core_file_to_sym_file = NULL; + bug_ops.to_stratum = process_stratum ; + bug_ops.DONT_USE = 0; + bug_ops.to_has_all_memory = 1; + bug_ops.to_has_memory = 1; + bug_ops.to_has_stack = 1; + bug_ops.to_has_registers = 0; + bug_ops.to_has_execution = 0; + bug_ops.to_sections = 0 ; + bug_ops.to_sections_end = 0 ; + bug_ops.to_magic = OPS_MAGIC; /* Always the last thing */ +} /* init_bug_ops */ + +void +_initialize_remote_bug () +{ + init_bug_ops() ; + add_target (&bug_ops); + + add_show_from_set + (add_set_cmd ("srec-bytes", class_support, var_uinteger, + (char *) &srec_bytes, + "\ +Set the number of bytes represented in each S-record.\n\ +This affects the communication protocol with the remote target.", + &setlist), + &showlist); + + add_show_from_set + (add_set_cmd ("srec-max-retries", class_support, var_uinteger, + (char *) &srec_max_retries, + "\ +Set the number of retries for shipping S-records.\n\ +This affects the communication protocol with the remote target.", + &setlist), + &showlist); + +#if 0 + /* This needs to set SREC_SIZE, not srec_frame which gets changed at the + end of a download. But do we need the option at all? */ + add_show_from_set + (add_set_cmd ("srec-frame", class_support, var_uinteger, + (char *) &srec_frame, + "\ +Set the number of bytes in an S-record frame.\n\ +This affects the communication protocol with the remote target.", + &setlist), + &showlist); +#endif /* 0 */ + + add_show_from_set + (add_set_cmd ("srec-noise", class_support, var_zinteger, + (char *) &srec_noise, + "\ +Set number of S-record to send before deliberately flubbing a checksum.\n\ +Zero means flub none at all. This affects the communication protocol\n\ +with the remote target.", + &setlist), + &showlist); + + add_show_from_set + (add_set_cmd ("srec-sleep", class_support, var_zinteger, + (char *) &srec_sleep, + "\ +Set number of seconds to sleep after an S-record for a possible error message to arrive.\n\ +This affects the communication protocol with the remote target.", + &setlist), + &showlist); + + add_show_from_set + (add_set_cmd ("srec-echo-pace", class_support, var_boolean, + (char *) &srec_echo_pace, + "\ +Set echo-verification.\n\ +When on, use verification by echo when downloading S-records. This is\n\ +much slower, but generally more reliable.", + &setlist), + &showlist); +} |