X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=gdb%2Fremote-nindy.c;h=7902e0bcdf2b2888944229157a01d21f7937e188;hb=824670030be8c11c14f5d701eb2da19bd177f87f;hp=c168511be7c40613441b70083768100773629748;hpb=6ecb870e368f88cacd94e570308edcc6f8e50458;p=platform%2Fupstream%2Fbinutils.git diff --git a/gdb/remote-nindy.c b/gdb/remote-nindy.c index c168511..7902e0b 100644 --- a/gdb/remote-nindy.c +++ b/gdb/remote-nindy.c @@ -1,30 +1,30 @@ /* Memory-access and commands for remote NINDY process, for GDB. - Copyright 1990, 1991, 1992, 1993 Free Software Foundation, Inc. + Copyright 1990, 1991, 1992, 1993, 2001 Free Software Foundation, Inc. Contributed by Intel Corporation. Modified from remote.c by Chris Benenati. -GDB is distributed in the hope that it will be useful, but WITHOUT ANY -WARRANTY. No author or distributor accepts responsibility to anyone -for the consequences of using it or for whether it serves any -particular purpose or works at all, unless he says so in writing. -Refer to the GDB General Public License for full details. - -Everyone is granted permission to copy, modify and redistribute GDB, -but only under the conditions described in the GDB General Public -License. A copy of this license is supposed to have been given to you -along with GDB so you can know your rights and responsibilities. It -should be in a file named COPYING. Among other things, the copyright -notice and this notice must be preserved on all copies. - -In other words, go ahead and share GDB, but don't try to stop -anyone else from sharing it farther. Help stamp out software hoarding! -*/ + GDB is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY. No author or distributor accepts responsibility to anyone + for the consequences of using it or for whether it serves any + particular purpose or works at all, unless he says so in writing. + Refer to the GDB General Public License for full details. + + Everyone is granted permission to copy, modify and redistribute GDB, + but only under the conditions described in the GDB General Public + License. A copy of this license is supposed to have been given to you + along with GDB so you can know your rights and responsibilities. It + should be in a file named COPYING. Among other things, the copyright + notice and this notice must be preserved on all copies. + + In other words, go ahead and share GDB, but don't try to stop + anyone else from sharing it farther. Help stamp out software hoarding! + */ /* -Except for the data cache routines, this file bears little resemblence -to remote.c. A new (although similar) protocol has been specified, and -portions of the code are entirely dependent on having an i80960 with a -NINDY ROM monitor at the other end of the line. -*/ + Except for the data cache routines, this file bears little resemblence + to remote.c. A new (although similar) protocol has been specified, and + portions of the code are entirely dependent on having an i80960 with a + NINDY ROM monitor at the other end of the line. + */ /***************************************************************************** * @@ -107,33 +107,34 @@ NINDY ROM monitor at the other end of the line. #include "target.h" #include "gdbcore.h" #include "command.h" -#include "ieee-float.h" +#include "floatformat.h" -#include "wait.h" #include #include #include "serial.h" #include "nindy-share/env.h" #include "nindy-share/stop.h" +#include "remote-utils.h" -extern int unlink(); -extern char *getenv(); -extern char *mktemp(); +extern int unlink (); +extern char *getenv (); +extern char *mktemp (); extern void generic_mourn_inferior (); extern struct target_ops nindy_ops; extern FILE *instream; -extern struct ext_format ext_format_i960; /* i960-tdep.c */ extern char ninStopWhy (); +extern int ninMemGet (); +extern int ninMemPut (); -int nindy_initial_brk; /* nonzero if want to send an initial BREAK to nindy */ -int nindy_old_protocol; /* nonzero if want to use old protocol */ -char *nindy_ttyname; /* name of tty to talk to nindy on, or null */ +int nindy_initial_brk; /* nonzero if want to send an initial BREAK to nindy */ +int nindy_old_protocol; /* nonzero if want to use old protocol */ +char *nindy_ttyname; /* name of tty to talk to nindy on, or null */ -#define DLE '\020' /* Character NINDY sends to indicate user program has - * halted. */ +#define DLE '\020' /* Character NINDY sends to indicate user program has + * halted. */ #define TRUE 1 #define FALSE 0 @@ -143,60 +144,54 @@ extern serial_t nindy_serial; static int have_regs = 0; /* 1 iff regs read since i960 last halted */ static int regs_changed = 0; /* 1 iff regs were modified since last read */ -extern char *exists(); +extern char *exists (); -static void -dcache_flush (), dcache_poke (), dcache_init(); +static void nindy_fetch_registers (int); -static int -dcache_fetch (); - -static void -nindy_fetch_registers PARAMS ((int)); - -static void -nindy_store_registers PARAMS ((int)); +static void nindy_store_registers (int); static char *savename; static void -nindy_close (quitting) - int quitting; +nindy_close (int quitting) { if (nindy_serial != NULL) SERIAL_CLOSE (nindy_serial); nindy_serial = NULL; if (savename) - free (savename); + xfree (savename); savename = 0; } /* Open a connection to a remote debugger. - FIXME, there should be a way to specify the various options that are - now specified with gdb command-line options. (baud_rate, old_protocol, - and initial_brk) */ + FIXME, there should be "set" commands for the options that are + now specified with gdb command-line options (old_protocol, + and initial_brk). */ void -nindy_open (name, from_tty) - char *name; /* "/dev/ttyXX", "ttyXX", or "XX": tty to be opened */ - int from_tty; +nindy_open (char *name, /* "/dev/ttyXX", "ttyXX", or "XX": tty to be opened */ + int from_tty) { + char baudrate[1024]; if (!name) error_no_arg ("serial port device name"); target_preopen (from_tty); - + nindy_close (0); have_regs = regs_changed = 0; - dcache_init(); /* Allow user to interrupt the following -- we could hang if there's no NINDY at the other end of the remote tty. */ immediate_quit++; - ninConnect(name, baud_rate ? baud_rate : "9600", - nindy_initial_brk, !from_tty, nindy_old_protocol); + /* If baud_rate is -1, then ninConnect will not recognize the baud rate + and will deal with the situation in a (more or less) reasonable + fashion. */ + sprintf (baudrate, "%d", baud_rate); + ninConnect (name, baudrate, + nindy_initial_brk, !from_tty, nindy_old_protocol); immediate_quit--; if (nindy_serial == NULL) @@ -206,15 +201,19 @@ nindy_open (name, from_tty) savename = savestring (name, strlen (name)); push_target (&nindy_ops); - target_fetch_registers(-1); + + target_fetch_registers (-1); + + init_thread_list (); + init_wait_for_inferior (); + clear_proceed_status (); + normal_stop (); } /* User-initiated quit of nindy operations. */ static void -nindy_detach (name, from_tty) - char *name; - int from_tty; +nindy_detach (char *name, int from_tty) { if (name) error ("Too many arguments"); @@ -222,49 +221,50 @@ nindy_detach (name, from_tty) } static void -nindy_files_info () +nindy_files_info (void) { - printf("\tAttached to %s at %s bps%s%s.\n", savename, - baud_rate? baud_rate: "9600", - nindy_old_protocol? " in old protocol": "", - nindy_initial_brk? " with initial break": ""); + /* FIXME: this lies about the baud rate if we autobauded. */ + printf_unfiltered ("\tAttached to %s at %d bits per second%s%s.\n", savename, + baud_rate, + nindy_old_protocol ? " in old protocol" : "", + nindy_initial_brk ? " with initial break" : ""); } -/* Return the number of characters in the buffer before - the first DLE character. */ +/* Return the number of characters in the buffer BUF before + the first DLE character. N is maximum number of characters to + consider. */ static int -non_dle( buf, n ) - char *buf; /* Character buffer; NOT '\0'-terminated */ - int n; /* Number of characters in buffer */ +non_dle (char *buf, int n) { - int i; + int i; - for ( i = 0; i < n; i++ ){ - if ( buf[i] == DLE ){ - break; - } + for (i = 0; i < n; i++) + { + if (buf[i] == DLE) + { + break; } - return i; + } + return i; } /* Tell the remote machine to resume. */ void -nindy_resume (pid, step, siggnal) - int pid, step, siggnal; +nindy_resume (int pid, int step, enum target_signal siggnal) { - if (siggnal != 0 && siggnal != stop_signal) - error ("Can't send signals to remote NINDY targets."); + if (siggnal != TARGET_SIGNAL_0 && siggnal != stop_signal) + warning ("Can't send signals to remote NINDY targets."); - dcache_flush(); - if ( regs_changed ){ - nindy_store_registers (-1); - regs_changed = 0; - } - have_regs = 0; - ninGo( step ); + if (regs_changed) + { + nindy_store_registers (-1); + regs_changed = 0; + } + have_regs = 0; + ninGo (step); } /* FIXME, we can probably use the normal terminal_inferior stuff here. @@ -272,49 +272,73 @@ nindy_resume (pid, step, siggnal) settings initially. Thereafter, terminal_ours and terminal_inferior will automatically swap the settings around for us. */ -struct clean_up_tty_args { +struct clean_up_tty_args +{ serial_ttystate state; serial_t serial; }; +static struct clean_up_tty_args tty_args; static void -clean_up_tty (ptrarg) - PTR ptrarg; +clean_up_tty (PTR ptrarg) { struct clean_up_tty_args *args = (struct clean_up_tty_args *) ptrarg; SERIAL_SET_TTY_STATE (args->serial, args->state); - free (args->state); - warning ("\n\n\ -You may need to reset the 80960 and/or reload your program.\n"); + xfree (args->state); + warning ("\n\nYou may need to reset the 80960 and/or reload your program.\n"); +} + +/* Recover from ^Z or ^C while remote process is running */ +static void (*old_ctrlc) (); +#ifdef SIGTSTP +static void (*old_ctrlz) (); +#endif + +static void +clean_up_int (void) +{ + SERIAL_SET_TTY_STATE (tty_args.serial, tty_args.state); + xfree (tty_args.state); + + signal (SIGINT, old_ctrlc); +#ifdef SIGTSTP + signal (SIGTSTP, old_ctrlz); +#endif + error ("\n\nYou may need to reset the 80960 and/or reload your program.\n"); } /* Wait until the remote machine stops. While waiting, operate in passthrough - * mode; i.e., pass everything NINDY sends to stdout, and everything from + * mode; i.e., pass everything NINDY sends to gdb_stdout, and everything from * stdin to NINDY. * * Return to caller, storing status in 'status' just as `wait' would. */ static int -nindy_wait( status ) - WAITTYPE *status; +nindy_wait (int pid, struct target_waitstatus *status) { fd_set fds; - char buf[500]; /* FIXME, what is "500" here? */ + int c; + char buf[2]; int i, n; unsigned char stop_exit; unsigned char stop_code; - struct clean_up_tty_args tty_args; struct cleanup *old_cleanups; long ip_value, fp_value, sp_value; /* Reg values from stop */ - WSETEXIT( (*status), 0 ); + status->kind = TARGET_WAITKIND_EXITED; + status->value.integer = 0; /* OPERATE IN PASSTHROUGH MODE UNTIL NINDY SENDS A DLE CHARACTER */ /* Save current tty attributes, and restore them when done. */ tty_args.serial = SERIAL_FDOPEN (0); tty_args.state = SERIAL_GET_TTY_STATE (tty_args.serial); + old_ctrlc = signal (SIGINT, clean_up_int); +#ifdef SIGTSTP + old_ctrlz = signal (SIGTSTP, clean_up_int); +#endif + old_cleanups = make_cleanup (clean_up_tty, &tty_args); /* Pass input from keyboard to NINDY as it arrives. NINDY will interpret @@ -325,92 +349,63 @@ nindy_wait( status ) while (1) { - /* Wait for input on either the remote port or stdin. */ - FD_ZERO (&fds); - FD_SET (0, &fds); - FD_SET (nindy_serial->fd, &fds); - if (select (nindy_serial->fd + 1, &fds, 0, 0, 0) <= 0) - continue; - - /* Pass input through to correct place */ - if (FD_ISSET (0, &fds)) + /* Input on remote */ + c = SERIAL_READCHAR (nindy_serial, -1); + if (c == SERIAL_ERROR) { - /* Input on stdin */ - n = read (0, buf, sizeof (buf)); - if (n) - { - SERIAL_WRITE (nindy_serial, buf, n ); - } + error ("Cannot read from serial line"); } - - if (FD_ISSET (nindy_serial->fd, &fds)) + else if (c == 0x1b) /* ESC */ + { + c = SERIAL_READCHAR (nindy_serial, -1); + c &= ~0x40; + } + else if (c != 0x10) /* DLE */ + /* Write out any characters preceding DLE */ + { + buf[0] = (char) c; + write (1, buf, 1); + } + else { - /* Input on remote */ - n = read (nindy_serial->fd, buf, sizeof (buf)); - if (n) + stop_exit = ninStopWhy (&stop_code, + &ip_value, &fp_value, &sp_value); + if (!stop_exit && (stop_code == STOP_SRQ)) { - /* Write out any characters in buffer preceding DLE */ - i = non_dle( buf, n ); - if ( i > 0 ) - { - write (1, buf, i); - } - - if (i != n) - { - /* There *was* a DLE in the buffer */ - stop_exit = ninStopWhy(&stop_code, - &ip_value, &fp_value, &sp_value); - if (!stop_exit && (stop_code == STOP_SRQ)) - { - immediate_quit++; - ninSrq(); - immediate_quit--; - } - else - { - /* Get out of loop */ - supply_register (IP_REGNUM, - (char *)&ip_value); - supply_register (FP_REGNUM, - (char *)&fp_value); - supply_register (SP_REGNUM, - (char *)&sp_value); - break; - } - } + immediate_quit++; + ninSrq (); + immediate_quit--; + } + else + { + /* Get out of loop */ + supply_register (IP_REGNUM, + (char *) &ip_value); + supply_register (FP_REGNUM, + (char *) &fp_value); + supply_register (SP_REGNUM, + (char *) &sp_value); + break; } } } - do_cleanups (old_cleanups); + SERIAL_SET_TTY_STATE (tty_args.serial, tty_args.state); + xfree (tty_args.state); + discard_cleanups (old_cleanups); if (stop_exit) { - /* User program exited */ - WSETEXIT ((*status), stop_code); + status->kind = TARGET_WAITKIND_EXITED; + status->value.integer = stop_code; } else { - /* Fault or trace */ - switch (stop_code) - { - case STOP_GDB_BPT: - case TRACE_STEP: - /* Breakpoint or single stepping. */ - stop_code = SIGTRAP; - break; - default: - /* The target is not running Unix, and its faults/traces do - not map nicely into Unix signals. Make sure they do not - get confused with Unix signals by numbering them with - values higher than the highest legal Unix signal. code - in i960_print_fault(), called via PRINT_RANDOM_SIGNAL, - will interpret the value. */ - stop_code += NSIG; - break; - } - WSETSTOP ((*status), stop_code); + /* nindy has some special stop code need to be handled */ + if (stop_code == STOP_GDB_BPT) + stop_code = TRACE_STEP; + status->kind = TARGET_WAITKIND_STOPPED; + status->value.sig = i960_fault_to_signal (stop_code); } return inferior_pid; } @@ -418,344 +413,87 @@ nindy_wait( status ) /* Read the remote registers into the block REGS. */ /* This is the block that ninRegsGet and ninRegsPut handles. */ -struct nindy_regs { - char local_regs[16 * 4]; - char global_regs[16 * 4]; - char pcw_acw[2 * 4]; - char ip[4]; - char tcw[4]; - char fp_as_double[4 * 8]; +struct nindy_regs +{ + char local_regs[16 * 4]; + char global_regs[16 * 4]; + char pcw_acw[2 * 4]; + char ip[4]; + char tcw[4]; + char fp_as_double[4 * 8]; }; static void -nindy_fetch_registers(regno) - int regno; +nindy_fetch_registers (int regno) { struct nindy_regs nindy_regs; - int regnum, inv; - double dub; + int regnum; immediate_quit++; - ninRegsGet( (char *) &nindy_regs ); + ninRegsGet ((char *) &nindy_regs); immediate_quit--; - memcpy (®isters[REGISTER_BYTE (R0_REGNUM)], nindy_regs.local_regs, 16*4); - memcpy (®isters[REGISTER_BYTE (G0_REGNUM)], nindy_regs.global_regs, 16*4); - memcpy (®isters[REGISTER_BYTE (PCW_REGNUM)], nindy_regs.pcw_acw, 2*4); - memcpy (®isters[REGISTER_BYTE (IP_REGNUM)], nindy_regs.ip, 1*4); - memcpy (®isters[REGISTER_BYTE (TCW_REGNUM)], nindy_regs.tcw, 1*4); - for (regnum = FP0_REGNUM; regnum < FP0_REGNUM + 4; regnum++) { - dub = unpack_double (builtin_type_double, - &nindy_regs.fp_as_double[8 * (regnum - FP0_REGNUM)], - &inv); - /* dub now in host byte order */ - double_to_ieee_extended (&ext_format_i960, &dub, - ®isters[REGISTER_BYTE (regnum)]); - } + memcpy (®isters[REGISTER_BYTE (R0_REGNUM)], nindy_regs.local_regs, 16 * 4); + memcpy (®isters[REGISTER_BYTE (G0_REGNUM)], nindy_regs.global_regs, 16 * 4); + memcpy (®isters[REGISTER_BYTE (PCW_REGNUM)], nindy_regs.pcw_acw, 2 * 4); + memcpy (®isters[REGISTER_BYTE (IP_REGNUM)], nindy_regs.ip, 1 * 4); + memcpy (®isters[REGISTER_BYTE (TCW_REGNUM)], nindy_regs.tcw, 1 * 4); + memcpy (®isters[REGISTER_BYTE (FP0_REGNUM)], nindy_regs.fp_as_double, 4 * 8); registers_fetched (); } static void -nindy_prepare_to_store() +nindy_prepare_to_store (void) { /* Fetch all regs if they aren't already here. */ read_register_bytes (0, NULL, REGISTER_BYTES); } static void -nindy_store_registers(regno) - int regno; +nindy_store_registers (int regno) { struct nindy_regs nindy_regs; - int regnum, inv; - double dub; - - memcpy (nindy_regs.local_regs, ®isters[REGISTER_BYTE (R0_REGNUM)], 16*4); - memcpy (nindy_regs.global_regs, ®isters[REGISTER_BYTE (G0_REGNUM)], 16*4); - memcpy (nindy_regs.pcw_acw, ®isters[REGISTER_BYTE (PCW_REGNUM)], 2*4); - memcpy (nindy_regs.ip, ®isters[REGISTER_BYTE (IP_REGNUM)], 1*4); - memcpy (nindy_regs.tcw, ®isters[REGISTER_BYTE (TCW_REGNUM)], 1*4); - /* Float regs. Only works on IEEE_FLOAT hosts. FIXME! */ - for (regnum = FP0_REGNUM; regnum < FP0_REGNUM + 4; regnum++) { - ieee_extended_to_double (&ext_format_i960, - ®isters[REGISTER_BYTE (regnum)], &dub); - /* dub now in host byte order */ - /* FIXME-someday, the arguments to unpack_double are backward. - It expects a target double and returns a host; we pass the opposite. - This mostly works but not quite. */ - dub = unpack_double (builtin_type_double, (char *)&dub, &inv); - /* dub now in target byte order */ - memcpy (&nindy_regs.fp_as_double[8 * (regnum - FP0_REGNUM)], &dub, 8); - } + int regnum; + + memcpy (nindy_regs.local_regs, ®isters[REGISTER_BYTE (R0_REGNUM)], 16 * 4); + memcpy (nindy_regs.global_regs, ®isters[REGISTER_BYTE (G0_REGNUM)], 16 * 4); + memcpy (nindy_regs.pcw_acw, ®isters[REGISTER_BYTE (PCW_REGNUM)], 2 * 4); + memcpy (nindy_regs.ip, ®isters[REGISTER_BYTE (IP_REGNUM)], 1 * 4); + memcpy (nindy_regs.tcw, ®isters[REGISTER_BYTE (TCW_REGNUM)], 1 * 4); + memcpy (nindy_regs.fp_as_double, ®isters[REGISTER_BYTE (FP0_REGNUM)], 8 * 4); immediate_quit++; - ninRegsPut( (char *) &nindy_regs ); + ninRegsPut ((char *) &nindy_regs); immediate_quit--; } -/* Read a word from remote address ADDR and return it. - * This goes through the data cache. - */ -int -nindy_fetch_word (addr) - CORE_ADDR addr; -{ - return dcache_fetch (addr); -} - -/* Write a word WORD into remote address ADDR. - This goes through the data cache. */ - -void -nindy_store_word (addr, word) - CORE_ADDR addr; - int word; -{ - dcache_poke (addr, word); -} - /* Copy LEN bytes to or from inferior's memory starting at MEMADDR to debugger memory starting at MYADDR. Copy to inferior if - WRITE is nonzero. Returns the length copied. - - This is stolen almost directly from infptrace.c's child_xfer_memory, - which also deals with a word-oriented memory interface. Sometime, - FIXME, rewrite this to not use the word-oriented routines. */ + SHOULD_WRITE is nonzero. Returns the length copied. TARGET is + unused. */ int -nindy_xfer_inferior_memory(memaddr, myaddr, len, write, target) - CORE_ADDR memaddr; - char *myaddr; - int len; - int write; - struct target_ops *target; /* ignored */ +nindy_xfer_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len, + int should_write, + struct mem_attrib *attrib ATTRIBUTE_UNUSED, + struct target_ops *target ATTRIBUTE_UNUSED) { - register int i; - /* Round starting address down to longword boundary. */ - register CORE_ADDR addr = memaddr & - sizeof (int); - /* Round ending address up; get number of longwords that makes. */ - register int count - = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int); - /* Allocate buffer of that many longwords. */ - register 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] = nindy_fetch_word (addr); - } - - if (count > 1) /* FIXME, avoid if even boundary */ - { - buffer[count - 1] - = nindy_fetch_word (addr + (count - 1) * sizeof (int)); - } - - /* Copy data to be written over corresponding part of buffer */ + int res; - memcpy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len); + if (len <= 0) + return 0; - /* Write the entire buffer. */ - - for (i = 0; i < count; i++, addr += sizeof (int)) - { - errno = 0; - nindy_store_word (addr, buffer[i]); - if (errno) - return 0; - } - } + if (should_write) + res = ninMemPut (memaddr, myaddr, len); else - { - /* Read all the longwords */ - for (i = 0; i < count; i++, addr += sizeof (int)) - { - errno = 0; - buffer[i] = nindy_fetch_word (addr); - if (errno) - return 0; - QUIT; - } + res = ninMemGet (memaddr, myaddr, len); - /* Copy appropriate bytes out of the buffer. */ - memcpy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len); - } - return len; + return res; } -/* The data cache records all the data read from the remote machine - since the last time it stopped. - - Each cache block holds 16 bytes of data - starting at a multiple-of-16 address. */ - -#define DCACHE_SIZE 64 /* Number of cache blocks */ - -struct dcache_block { - struct dcache_block *next, *last; - unsigned int addr; /* Address for which data is recorded. */ - int data[4]; -}; - -struct dcache_block dcache_free, dcache_valid; - -/* Free all the data cache blocks, thus discarding all cached data. */ -static -void -dcache_flush () -{ - register struct dcache_block *db; - - while ((db = dcache_valid.next) != &dcache_valid) - { - remque (db); - insque (db, &dcache_free); - } -} - -/* - * If addr is present in the dcache, return the address of the block - * containing it. - */ -static -struct dcache_block * -dcache_hit (addr) - unsigned int addr; -{ - register struct dcache_block *db; - - if (addr & 3) - abort (); - - /* Search all cache blocks for one that is at this address. */ - db = dcache_valid.next; - while (db != &dcache_valid) - { - if ((addr & 0xfffffff0) == db->addr) - return db; - db = db->next; - } - return NULL; -} - -/* Return the int data at address ADDR in dcache block DC. */ -static -int -dcache_value (db, addr) - struct dcache_block *db; - unsigned int addr; -{ - if (addr & 3) - abort (); - return (db->data[(addr>>2)&3]); -} - -/* Get a free cache block, put or keep it on the valid list, - and return its address. The caller should store into the block - the address and data that it describes, then remque it from the - free list and insert it into the valid list. This procedure - prevents errors from creeping in if a ninMemGet is interrupted - (which used to put garbage blocks in the valid list...). */ -static -struct dcache_block * -dcache_alloc () -{ - register struct dcache_block *db; - - if ((db = dcache_free.next) == &dcache_free) - { - /* If we can't get one from the free list, take last valid and put - it on the free list. */ - db = dcache_valid.last; - remque (db); - insque (db, &dcache_free); - } - - remque (db); - insque (db, &dcache_valid); - return (db); -} - -/* Return the contents of the word at address ADDR in the remote machine, - using the data cache. */ -static -int -dcache_fetch (addr) - CORE_ADDR addr; -{ - register struct dcache_block *db; - - db = dcache_hit (addr); - if (db == 0) - { - db = dcache_alloc (); - immediate_quit++; - ninMemGet(addr & ~0xf, (unsigned char *)db->data, 16); - immediate_quit--; - db->addr = addr & ~0xf; - remque (db); /* Off the free list */ - insque (db, &dcache_valid); /* On the valid list */ - } - return (dcache_value (db, addr)); -} - -/* Write the word at ADDR both in the data cache and in the remote machine. */ static void -dcache_poke (addr, data) - CORE_ADDR addr; - int data; -{ - register struct dcache_block *db; - - /* First make sure the word is IN the cache. DB is its cache block. */ - db = dcache_hit (addr); - if (db == 0) - { - db = dcache_alloc (); - immediate_quit++; - ninMemGet(addr & ~0xf, (unsigned char *)db->data, 16); - immediate_quit--; - db->addr = addr & ~0xf; - remque (db); /* Off the free list */ - insque (db, &dcache_valid); /* On the valid list */ - } - - /* Modify the word in the cache. */ - db->data[(addr>>2)&3] = data; - - /* Send the changed word. */ - immediate_quit++; - ninMemPut(addr, (unsigned char *)&data, 4); - immediate_quit--; -} - -/* The cache itself. */ -struct dcache_block the_cache[DCACHE_SIZE]; - -/* Initialize the data cache. */ -static void -dcache_init () -{ - register i; - register struct dcache_block *db; - - db = the_cache; - dcache_free.next = dcache_free.last = &dcache_free; - dcache_valid.next = dcache_valid.last = &dcache_valid; - for (i=0;isections; s; s = s->next) + { + if (s->flags & SEC_LOAD) + { + char *buffer = xmalloc (s->_raw_size); + bfd_get_section_contents (file, s, buffer, 0, s->_raw_size); + printf ("Loading section %s, size %x vma %x\n", + s->name, + s->_raw_size, + s->vma); + ninMemPut (s->vma, buffer, s->_raw_size); + xfree (buffer); + } + } + bfd_close (file); +} + static int -load_stub (arg) - char *arg; +load_stub (char *arg) { target_load (arg, 1); return 1; @@ -859,81 +626,133 @@ load_stub (arg) an i960 object file on the host system. */ void -nindy_before_main_loop () +nindy_before_main_loop (void) { char ttyname[100]; char *p, *p2; - while (current_target != &nindy_ops) { /* remote tty not specified yet */ - if ( instream == stdin ){ - printf("\nAttach /dev/ttyNN -- specify NN, or \"quit\" to quit: "); - fflush( stdout ); + while (target_stack->target_ops != &nindy_ops) /* What is this crap??? */ + { /* remote tty not specified yet */ + if (instream == stdin) + { + printf_unfiltered ("\nAttach /dev/ttyNN -- specify NN, or \"quit\" to quit: "); + gdb_flush (gdb_stdout); } - fgets( ttyname, sizeof(ttyname)-1, stdin ); + fgets (ttyname, sizeof (ttyname) - 1, stdin); - /* Strip leading and trailing whitespace */ - for ( p = ttyname; isspace(*p); p++ ){ - ; + /* Strip leading and trailing whitespace */ + for (p = ttyname; isspace (*p); p++) + { + ; } - if ( *p == '\0' ){ - return; /* User just hit spaces or return, wants out */ + if (*p == '\0') + { + return; /* User just hit spaces or return, wants out */ } - for ( p2= p; !isspace(*p2) && (*p2 != '\0'); p2++ ){ - ; + for (p2 = p; !isspace (*p2) && (*p2 != '\0'); p2++) + { + ; } - *p2= '\0'; - if ( STREQ("quit",p) ){ - exit(1); + *p2 = '\0'; + if (STREQ ("quit", p)) + { + exit (1); } - if (catch_errors (nindy_open_stub, p, "", RETURN_MASK_ALL)) - { - /* Now that we have a tty open for talking to the remote machine, - download the executable file if one was specified. */ - if (exec_bfd) - { - catch_errors (load_stub, bfd_get_filename (exec_bfd), "", - RETURN_MASK_ALL); - } - } - } + if (catch_errors (nindy_open_stub, p, "", RETURN_MASK_ALL)) + { + /* Now that we have a tty open for talking to the remote machine, + download the executable file if one was specified. */ + if (exec_bfd) + { + catch_errors (load_stub, bfd_get_filename (exec_bfd), "", + RETURN_MASK_ALL); + } + } + } } /* Define the target subroutine names */ -struct target_ops nindy_ops = { - "nindy", "Remote serial target in i960 NINDY-specific protocol", - "Use a remote i960 system running NINDY connected by a serial line.\n\ +struct target_ops nindy_ops; + +static void +init_nindy_ops (void) +{ + nindy_ops.to_shortname = "nindy"; + "Remote serial target in i960 NINDY-specific protocol", + nindy_ops.to_longname = "Use a remote i960 system running NINDY connected by a serial line.\n\ Specify the name of the device the serial line is connected to.\n\ The speed (baud rate), whether to use the old NINDY protocol,\n\ and whether to send a break on startup, are controlled by options\n\ -specified when you started GDB.", - nindy_open, nindy_close, - 0, - nindy_detach, - nindy_resume, - nindy_wait, - nindy_fetch_registers, nindy_store_registers, - nindy_prepare_to_store, - nindy_xfer_inferior_memory, nindy_files_info, - 0, 0, /* insert_breakpoint, remove_breakpoint, */ - 0, 0, 0, 0, 0, /* Terminal crud */ - nindy_kill, - generic_load, - 0, /* lookup_symbol */ - nindy_create_inferior, - nindy_mourn_inferior, - 0, /* can_run */ - 0, /* notice_signals */ - process_stratum, 0, /* next */ - 1, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */ - 0, 0, /* Section pointers */ - OPS_MAGIC, /* Always the last thing */ -}; +specified when you started GDB."; + nindy_ops.to_doc = ""; + nindy_ops.to_open = nindy_open; + nindy_ops.to_close = nindy_close; + nindy_ops.to_attach = 0; + nindy_ops.to_post_attach = NULL; + nindy_ops.to_require_attach = NULL; + nindy_ops.to_detach = nindy_detach; + nindy_ops.to_require_detach = NULL; + nindy_ops.to_resume = nindy_resume; + nindy_ops.to_wait = nindy_wait; + nindy_ops.to_post_wait = NULL; + nindy_ops.to_fetch_registers = nindy_fetch_registers; + nindy_ops.to_store_registers = nindy_store_registers; + nindy_ops.to_prepare_to_store = nindy_prepare_to_store; + nindy_ops.to_xfer_memory = nindy_xfer_inferior_memory; + nindy_ops.to_files_info = nindy_files_info; + nindy_ops.to_insert_breakpoint = memory_insert_breakpoint; + nindy_ops.to_remove_breakpoint = memory_remove_breakpoint; + nindy_ops.to_terminal_init = 0; + nindy_ops.to_terminal_inferior = 0; + nindy_ops.to_terminal_ours_for_output = 0; + nindy_ops.to_terminal_ours = 0; + nindy_ops.to_terminal_info = 0; /* Terminal crud */ + nindy_ops.to_kill = nindy_kill; + nindy_ops.to_load = nindy_load; + nindy_ops.to_lookup_symbol = 0; /* lookup_symbol */ + nindy_ops.to_create_inferior = nindy_create_inferior; + nindy_ops.to_post_startup_inferior = NULL; + nindy_ops.to_acknowledge_created_inferior = NULL; + nindy_ops.to_clone_and_follow_inferior = NULL; + nindy_ops.to_post_follow_inferior_by_clone = NULL; + nindy_ops.to_insert_fork_catchpoint = NULL; + nindy_ops.to_remove_fork_catchpoint = NULL; + nindy_ops.to_insert_vfork_catchpoint = NULL; + nindy_ops.to_remove_vfork_catchpoint = NULL; + nindy_ops.to_has_forked = NULL; + nindy_ops.to_has_vforked = NULL; + nindy_ops.to_can_follow_vfork_prior_to_exec = NULL; + nindy_ops.to_post_follow_vfork = NULL; + nindy_ops.to_insert_exec_catchpoint = NULL; + nindy_ops.to_remove_exec_catchpoint = NULL; + nindy_ops.to_has_execd = NULL; + nindy_ops.to_reported_exec_events_per_exec_call = NULL; + nindy_ops.to_has_exited = NULL; + nindy_ops.to_mourn_inferior = nindy_mourn_inferior; + nindy_ops.to_can_run = 0; /* can_run */ + nindy_ops.to_notice_signals = 0; /* notice_signals */ + nindy_ops.to_thread_alive = 0; /* to_thread_alive */ + nindy_ops.to_stop = 0; /* to_stop */ + nindy_ops.to_pid_to_exec_file = NULL; + nindy_ops.to_core_file_to_sym_file = NULL; + nindy_ops.to_stratum = process_stratum; + nindy_ops.DONT_USE = 0; /* next */ + nindy_ops.to_has_all_memory = 1; + nindy_ops.to_has_memory = 1; + nindy_ops.to_has_stack = 1; + nindy_ops.to_has_registers = 1; + nindy_ops.to_has_execution = 1; /* all mem, mem, stack, regs, exec */ + nindy_ops.to_sections = 0; + nindy_ops.to_sections_end = 0; /* Section pointers */ + nindy_ops.to_magic = OPS_MAGIC; /* Always the last thing */ +} void -_initialize_nindy () +_initialize_nindy (void) { + init_nindy_ops (); add_target (&nindy_ops); add_com ("reset", class_obscure, reset_command, "Send a 'break' to the remote target system.\n\