diff options
Diffstat (limited to 'contrib/gdb/gdb/remote-rdp.c')
-rw-r--r-- | contrib/gdb/gdb/remote-rdp.c | 417 |
1 files changed, 341 insertions, 76 deletions
diff --git a/contrib/gdb/gdb/remote-rdp.c b/contrib/gdb/gdb/remote-rdp.c index 3cc4c4e..1d596a4 100644 --- a/contrib/gdb/gdb/remote-rdp.c +++ b/contrib/gdb/gdb/remote-rdp.c @@ -54,6 +54,7 @@ #ifdef HAVE_UNISTD_H #include <unistd.h> #endif +#include "gdbcore.h" extern struct target_ops remote_rdp_ops; @@ -138,6 +139,16 @@ ds; #define RDP_INFO_ABOUT_BREAK_THREAD_BREAK (1<<9) #define RDP_INFO_ABOUT_BREAK_THREAD_WATCH (1<<10) #define RDP_INFO_ABOUT_BREAK_COND (1<<11) +#define RDP_INFO_VECTOR_CATCH (0x180) +#define RDP_INFO_ICEBREAKER (7) +#define RDP_INFO_SET_CMDLINE (0x300) + +#define RDP_SELECT_CONFIG (0x16) +#define RDI_ConfigCPU 0 +#define RDI_ConfigSystem 1 +#define RDI_MatchAny 0 +#define RDI_MatchExactly 1 +#define RDI_MatchNoEarlier 2 #define RDP_RESET 0x7f @@ -157,6 +168,8 @@ ds; static int timeout = 2; +static char * commandline = NULL; + static int remote_rdp_xfer_inferior_memory PARAMS ((CORE_ADDR memaddr, char *myaddr, @@ -263,9 +276,39 @@ rdp_init (cold, tty) if (tty) printf_unfiltered ("Trying to connect at %d baud.\n", baudtry); + + /* + ** It seems necessary to reset an EmbeddedICE to get it going. + ** This has the side benefit of displaying the startup banner. + */ + if (cold) + { + put_byte (RDP_RESET); + while ((restype = SERIAL_READCHAR (io, 1)) > 0) + { + switch (restype) + { + case SERIAL_TIMEOUT: + break; + case RDP_RESET: + /* Sent at start of reset process: ignore */ + break; + default: + printf_unfiltered ("%c", isgraph (restype) ? restype : ' '); + break; + } + } + + if (restype == 0) + { + /* Got end-of-banner mark */ + printf_filtered ("\n"); + } + } + put_byte (RDP_OPEN); - put_byte (type | RDP_OPEN_TYPE_RETURN_SEX); + put_byte (type | RDP_OPEN_TYPE_RETURN_SEX ); put_word (0); while (!sync && (restype = SERIAL_READCHAR (io, 1)) > 0) @@ -277,15 +320,16 @@ rdp_init (cold, tty) { case SERIAL_TIMEOUT: break; + case RDP_RESET: while ((restype = SERIAL_READCHAR (io, 1)) == RDP_RESET) ; - while ((restype = SERIAL_READCHAR (io, 1)) > 0) + do { printf_unfiltered ("%c", isgraph (restype) ? restype : ' '); } - while ((restype = SERIAL_READCHAR (io, 1)) > 0) - ; + while ((restype = SERIAL_READCHAR (io, 1)) > 0); + if (tty) { printf_unfiltered ("\nThe board has sent notification that it was reset.\n"); @@ -294,12 +338,19 @@ rdp_init (cold, tty) sleep (3); if (tty) printf_unfiltered ("\nTrying again.\n"); + cold = 0; break; + default: break; + case RDP_RES_VALUE: { int resval = SERIAL_READCHAR (io, 1); + + if (remote_debug) + printf_unfiltered ("[%02x]\n", resval); + switch (resval) { case SERIAL_TIMEOUT: @@ -384,9 +435,27 @@ send_rdp (char *template, va_alist) } break; case 'Z': - /* Check the result code, error if not zero */ - if (get_byte ()) - error ("Command garbled"); + /* Check the result code */ + switch (get_byte ()) + { + case 0: + /* Success */ + break; + case 253: + /* Target can't do it; never mind */ + printf_unfiltered ("RDP: Insufficient privilege\n"); + return; + case 254: + /* Target can't do it; never mind */ + printf_unfiltered ("RDP: Unimplemented message\n"); + return; + case 255: + error ("Command garbled"); + break; + default: + error ("Corrupt reply from target"); + break; + } break; case 'W': /* Read a word from the target */ @@ -652,6 +721,50 @@ rdp_execute_start () } +static void +rdp_set_command_line (command, args) + char * command; + char * args; +{ + /* + ** We could use RDP_INFO_SET_CMDLINE to send this, but EmbeddedICE systems + ** don't implement that, and get all confused at the unexpected text. + ** Instead, just keep a copy, and send it when the target does a SWI_GetEnv + */ + + if (commandline != NULL) + free (commandline); + + commandline = malloc (strlen (command) + strlen (args) + 2); + if (commandline != NULL) + { + strcpy (commandline, command); + strcat (commandline, " "); + strcat (commandline, args); + } +} + +static void +rdp_catch_vectors () +{ + /* + ** We want the target monitor to intercept the abort vectors + ** i.e. stop the program if any of these are used. + */ + send_rdp ("bww-SZ", RDP_INFO, RDP_INFO_VECTOR_CATCH, + /* + ** Specify a bitmask including + ** the reset vector + ** the undefined instruction vector + ** the prefetch abort vector + ** the data abort vector + ** the address exception vector + */ + (1<<0)|(1<<1)|(1<<3)|(1<<4)|(1<<5) + ); +} + + #define a_byte 1 #define a_word 2 @@ -698,6 +811,26 @@ argsin; #define SWI_GenerateError 0x71 +#ifndef O_BINARY +#define O_BINARY 0 +#endif + +static int translate_open_mode[] = +{ + O_RDONLY, /* "r" */ + O_RDONLY+O_BINARY, /* "rb" */ + O_RDWR, /* "r+" */ + O_RDWR +O_BINARY, /* "r+b" */ + O_WRONLY +O_CREAT+O_TRUNC, /* "w" */ + O_WRONLY+O_BINARY+O_CREAT+O_TRUNC, /* "wb" */ + O_RDWR +O_CREAT+O_TRUNC, /* "w+" */ + O_RDWR +O_BINARY+O_CREAT+O_TRUNC, /* "w+b" */ + O_WRONLY +O_APPEND+O_CREAT,/* "a" */ + O_WRONLY+O_BINARY+O_APPEND+O_CREAT,/* "ab" */ + O_RDWR +O_APPEND+O_CREAT,/* "a+" */ + O_RDWR +O_BINARY+O_APPEND+O_CREAT /* "a+b" */ +}; + static int exec_swi (swi, args) int swi; @@ -727,31 +860,41 @@ exec_swi (swi, args) case SWI_Time: args->n = callback->time (callback, NULL); return 1; + + case SWI_Clock : + /* return number of centi-seconds... */ + args->n = +#ifdef CLOCKS_PER_SEC + (CLOCKS_PER_SEC >= 100) + ? (clock() / (CLOCKS_PER_SEC / 100)) + : ((clock() * 100) / CLOCKS_PER_SEC) ; +#else + /* presume unix... clock() returns microseconds */ + clock() / 10000 ; +#endif + return 1 ; + case SWI_Remove: args->n = callback->unlink (callback, args->s); return 1; case SWI_Rename: args->n = callback->rename (callback, args[0].s, args[1].s); return 1; - case SWI_Open: - i = 0; - -#ifdef O_BINARY - if (args[1].n & 1) - i |= O_BINARY; -#endif - if (args[1].n & 2) - i |= O_RDWR; - - if (args[1].n & 4) - { - i |= O_CREAT; - } - - if (args[1].n & 8) - i |= O_APPEND; - args->n = callback->open (callback, args->s, i); + case SWI_Open: + /* Now we need to decode the Demon open mode */ + i = translate_open_mode[args[1].n]; + + /* Filename ":tt" is special: it denotes stdin/out */ + if (strcmp(args->s,":tt")==0) + { + if (i == O_RDONLY ) /* opening tty "r" */ + args->n = 0 /* stdin */ ; + else + args->n = 1 /* stdout */ ; + } + else + args->n = callback->open (callback, args->s, i); return 1; case SWI_Close: @@ -759,25 +902,30 @@ exec_swi (swi, args) return 1; case SWI_Write: - args->n = callback->write (callback, args[0].n, args[1].s, args[1].n); + /* Return the number of bytes *not* written */ + args->n = args[1].n - + callback->write (callback, args[0].n, args[1].s, args[1].n); return 1; + case SWI_Read: { char *copy = alloca (args[2].n); int done = callback->read (callback, args[0].n, copy, args[2].n); if (done > 0) - remote_rdp_xfer_inferior_memory (args[0].n, copy, done, 1, 0); - args->n -= done; + remote_rdp_xfer_inferior_memory (args[1].n, copy, done, 1, 0); + args->n = args[2].n-done; return 1; } case SWI_Seek: - args->n = callback->lseek (callback, args[0].n, args[1].n, 0) >= 0; + /* Return non-zero on failure */ + args->n = callback->lseek (callback, args[0].n, args[1].n, 0) < 0; return 1; + case SWI_Flen: { - long old = callback->lseek (callback, args->n, 1, 1); - args->n = callback->lseek (callback, args->n, 2, 0); + long old = callback->lseek (callback, args->n, 0, SEEK_CUR); + args->n = callback->lseek (callback, args->n, 0, SEEK_END); callback->lseek (callback, args->n, old, 0); return 1; } @@ -786,6 +934,22 @@ exec_swi (swi, args) args->n = callback->isatty (callback, args->n); return 1; + case SWI_GetEnv: + if (commandline != NULL) + { + int len = strlen (commandline); + if (len > 255) + { + len = 255; + commandline [255]='\0'; + } + remote_rdp_xfer_inferior_memory (args[0].n, + commandline, len+1, 1, 0); + } + else + remote_rdp_xfer_inferior_memory (args[0].n, "", 1, 1, 0); + return 1; + default: return 0; } @@ -986,6 +1150,8 @@ remote_rdp_open (args, from_tty) char *args; int from_tty; { + int not_icebreaker; + if (!args) error_no_arg ("serial port device name"); @@ -1010,7 +1176,33 @@ remote_rdp_open (args, from_tty) rdp_info (); - push_target (&remote_rdp_ops); + /* Need to set up the vector interception state */ + rdp_catch_vectors(); + + /* + ** If it's an EmbeddedICE, we need to set the processor config. + ** Assume we can always have ARM7TDI... + */ + send_rdp ("bw-SB", RDP_INFO, RDP_INFO_ICEBREAKER, & not_icebreaker); + if (!not_icebreaker) + { + const char * CPU = "ARM7TDI"; + int ICEversion; + int len = strlen (CPU); + + send_rdp ("bbbbw-p-SWZ", + RDP_SELECT_CONFIG, + RDI_ConfigCPU, /* Aspect: set the CPU */ + len, /* The number of bytes in the name */ + RDI_MatchAny, /* We'll take whatever we get */ + 0, /* We'll take whatever version's there */ + CPU,len, + & ICEversion); + } + + /* command line initialised on 'run'*/ + + push_target (& remote_rdp_ops); callback->init (callback); flush_cached_frames (); @@ -1192,56 +1384,129 @@ remote_rdp_files_info (target) } +static void +remote_rdp_create_inferior (exec_file, allargs, env) + char * exec_file; + char * allargs; + char ** env; +{ + CORE_ADDR entry_point; + + if (exec_file == 0 || exec_bfd == 0) + error ("No executable file specified."); + + entry_point = (CORE_ADDR) bfd_get_start_address (exec_bfd); + + remote_rdp_kill (); + remove_breakpoints (); + init_wait_for_inferior (); + + /* This gives us a chance to set up the command line */ + rdp_set_command_line (exec_file, allargs); + + inferior_pid = 42; + insert_breakpoints (); /* Needed to get correct instruction in cache */ + + /* + ** RDP targets don't provide any facility to set the top of memory, + ** so we don't bother to look for MEMSIZE in the environment. + */ + + /* Let's go! */ + proceed (entry_point, TARGET_SIGNAL_DEFAULT, 0); +} + +/* Accept any stray run/attach commands */ +static int +remote_rdp_can_run() +{ + return 1; +} + +/* Attach doesn't need to do anything */ +static void +remote_rdp_attach(args, from_tty) + char * args; + int from_tty; +{ + return; +} + /* Define the target subroutine names */ -struct target_ops remote_rdp_ops = +struct target_ops remote_rdp_ops ; + +static void +init_remote_rdp_ops(void) { - "rdp", /* to_shortname */ - /* to_longname */ - "Remote Target using the RDProtocol", - /* to_doc */ - "Use a remote ARM system which uses the ARM Remote Debugging Protocol", - remote_rdp_open, /* to_open */ - remote_rdp_close, /* to_close */ - NULL, /* to_attach */ - NULL, /* to_detach */ - remote_rdp_resume, /* to_resume */ - remote_rdp_wait, /* to_wait */ - remote_rdp_fetch_register, /* to_fetch_registers */ - remote_rdp_store_register, /* to_store_registers */ - remote_rdp_prepare_to_store, /* to_prepare_to_store */ - remote_rdp_xfer_inferior_memory, /* to_xfer_memory */ - remote_rdp_files_info, /* to_files_info */ - remote_rdp_insert_breakpoint, /* to_insert_breakpoint */ - remote_rdp_remove_breakpoint, /* to_remove_breakpoint */ - NULL, /* to_terminal_init */ - NULL, /* to_terminal_inferior */ - NULL, /* to_terminal_ours_for_output */ - NULL, /* to_terminal_ours */ - NULL, /* to_terminal_info */ - remote_rdp_kill, /* to_kill */ - generic_load, /* to_load */ - NULL, /* to_lookup_symbol */ - NULL, /* to_create_inferior */ - generic_mourn_inferior, /* to_mourn_inferior */ - 0, /* to_can_run */ - 0, /* to_notice_signals */ - 0, /* to_thread_alive */ - 0, /* to_stop */ - process_stratum, /* to_stratum */ - NULL, /* to_next */ - 1, /* to_has_all_memory */ - 1, /* to_has_memory */ - 1, /* to_has_stack */ - 1, /* to_has_registers */ - 1, /* to_has_execution */ - NULL, /* sections */ - NULL, /* sections_end */ - OPS_MAGIC, /* to_magic */ -}; + remote_rdp_ops.to_shortname = "rdp"; + remote_rdp_ops.to_longname = "Remote Target using the RDProtocol"; + remote_rdp_ops.to_doc = "Use a remote ARM system which uses the ARM Remote Debugging Protocol"; + remote_rdp_ops.to_open = remote_rdp_open; + remote_rdp_ops.to_close = remote_rdp_close; + remote_rdp_ops.to_attach = remote_rdp_attach; + remote_rdp_ops.to_post_attach = NULL; + remote_rdp_ops.to_require_attach = NULL; + remote_rdp_ops.to_detach = NULL; + remote_rdp_ops.to_require_detach = NULL; + remote_rdp_ops.to_resume = remote_rdp_resume; + remote_rdp_ops.to_wait = remote_rdp_wait; + remote_rdp_ops.to_post_wait = NULL; + remote_rdp_ops.to_fetch_registers = remote_rdp_fetch_register; + remote_rdp_ops.to_store_registers = remote_rdp_store_register; + remote_rdp_ops.to_prepare_to_store = remote_rdp_prepare_to_store; + remote_rdp_ops.to_xfer_memory = remote_rdp_xfer_inferior_memory; + remote_rdp_ops.to_files_info = remote_rdp_files_info; + remote_rdp_ops.to_insert_breakpoint = remote_rdp_insert_breakpoint; + remote_rdp_ops.to_remove_breakpoint = remote_rdp_remove_breakpoint; + remote_rdp_ops.to_terminal_init = NULL; + remote_rdp_ops.to_terminal_inferior = NULL; + remote_rdp_ops.to_terminal_ours_for_output = NULL; + remote_rdp_ops.to_terminal_ours = NULL; + remote_rdp_ops.to_terminal_info = NULL; + remote_rdp_ops.to_kill = remote_rdp_kill; + remote_rdp_ops.to_load = generic_load; + remote_rdp_ops.to_lookup_symbol = NULL; + remote_rdp_ops.to_create_inferior = remote_rdp_create_inferior; + remote_rdp_ops.to_post_startup_inferior = NULL; + remote_rdp_ops.to_acknowledge_created_inferior = NULL; + remote_rdp_ops.to_clone_and_follow_inferior = NULL; + remote_rdp_ops.to_post_follow_inferior_by_clone = NULL; + remote_rdp_ops.to_insert_fork_catchpoint = NULL; + remote_rdp_ops.to_remove_fork_catchpoint = NULL; + remote_rdp_ops.to_insert_vfork_catchpoint = NULL; + remote_rdp_ops.to_remove_vfork_catchpoint = NULL; + remote_rdp_ops.to_has_forked = NULL; + remote_rdp_ops.to_has_vforked = NULL; + remote_rdp_ops.to_can_follow_vfork_prior_to_exec = NULL; + remote_rdp_ops.to_post_follow_vfork = NULL; + remote_rdp_ops.to_insert_exec_catchpoint = NULL; + remote_rdp_ops.to_remove_exec_catchpoint = NULL; + remote_rdp_ops.to_has_execd = NULL; + remote_rdp_ops.to_reported_exec_events_per_exec_call = NULL; + remote_rdp_ops.to_has_exited = NULL; + remote_rdp_ops.to_mourn_inferior = generic_mourn_inferior; + remote_rdp_ops.to_can_run = remote_rdp_can_run; + remote_rdp_ops.to_notice_signals = 0; + remote_rdp_ops.to_thread_alive = 0; + remote_rdp_ops.to_stop = 0; + remote_rdp_ops.to_pid_to_exec_file = NULL; + remote_rdp_ops.to_core_file_to_sym_file = NULL; + remote_rdp_ops.to_stratum = process_stratum; + remote_rdp_ops.DONT_USE = NULL; + remote_rdp_ops.to_has_all_memory = 1; + remote_rdp_ops.to_has_memory = 1; + remote_rdp_ops.to_has_stack = 1; + remote_rdp_ops.to_has_registers = 1; + remote_rdp_ops.to_has_execution = 1; + remote_rdp_ops.to_sections = NULL; + remote_rdp_ops.to_sections_end = NULL; + remote_rdp_ops.to_magic = OPS_MAGIC; +} void _initialize_remote_rdp () { + init_remote_rdp_ops() ; add_target (&remote_rdp_ops); } |