From 69159fad827c69748406b97a2fe78c9449a17d40 Mon Sep 17 00:00:00 2001 From: Stan Shebs Date: Fri, 19 Apr 1996 01:55:57 +0000 Subject: * monitor.c: Use int rather than LONGEST for values, since the formatting strings are not prepared to accept long longs. PR 9432 --- gdb/ChangeLog | 5 ++ gdb/monitor.c | 182 ++++++++++++++++++++++++++++++++++++++-------------------- 2 files changed, 126 insertions(+), 61 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 2ddf255..32fdc65 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,8 @@ +Thu Apr 18 18:46:57 1996 Stan Shebs + + * monitor.c: Use int rather than LONGEST for values, since + the formatting strings are not prepared to accept long longs. + Wed Apr 17 20:17:27 1996 Doug Evans * arm-tdep.c (initialize_arm_tdep): Make apcs32 a `zinteger'. diff --git a/gdb/monitor.c b/gdb/monitor.c index dd035ed..a7cece7 100644 --- a/gdb/monitor.c +++ b/gdb/monitor.c @@ -1,5 +1,5 @@ /* Remote debugging interface for boot monitors, for GDB. - Copyright 1990, 1991, 1992, 1993, 1995 + Copyright 1990, 1991, 1992, 1993, 1995, 1996 Free Software Foundation, Inc. Contributed by Cygnus Support. Written by Rob Savoye for Cygnus. Resurrected from the ashes by Stu Grossman. @@ -30,6 +30,13 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ (or possibly TELNET) stream to a terminal multiplexor, which in turn talks to the target board. */ +/* FIXME 32x64: This code assumes that registers and addresses are at + most 32 bits long. If they can be larger, you will need to declare + values as LONGEST and use %llx or some such to print values when + building commands to send to the monitor. Since we don't know of + any actual 64-bit targets with ROM monitors that use this code, + it's not an issue right now. -sts 4/18/96 */ + #include "defs.h" #include "gdbcore.h" #include "target.h" @@ -59,7 +66,6 @@ static void monitor_command PARAMS ((char *args, int fromtty)); static void monitor_fetch_register PARAMS ((int regno)); static void monitor_store_register PARAMS ((int regno)); -static void monitor_close PARAMS ((int quitting)); static void monitor_detach PARAMS ((char *args, int from_tty)); static void monitor_resume PARAMS ((int pid, int step, enum target_signal sig)); static void monitor_interrupt PARAMS ((int signo)); @@ -79,11 +85,13 @@ static void monitor_kill PARAMS ((void)); static void monitor_load PARAMS ((char *file, int from_tty)); static void monitor_mourn_inferior PARAMS ((void)); static void monitor_stop PARAMS ((void)); -static void monitor_debug PARAMS ((char *string)); +static void monitor_debug PARAMS ((char *prefix, char *string, char *suffix)); static int monitor_read_memory PARAMS ((CORE_ADDR addr, char *myaddr,int len)); static int monitor_write_memory PARAMS ((CORE_ADDR addr, char *myaddr,int len)); +static int monitor_expect_regexp PARAMS ((struct re_pattern_buffer *pat, + char *buf, int buflen)); static int from_hex PARAMS ((int a)); static unsigned long get_hex_word PARAMS ((void)); @@ -120,11 +128,22 @@ static DCACHE *remote_dcache; characters in printable fashion. */ static void -monitor_debug (string) +monitor_debug (prefix, string, suffix) + char *prefix; char *string; + char *suffix; { int ch; + /* print prefix and suffix after each line */ + static int new_line=1; + if (new_line==1) { /* print prefix if last char was a newline */ + fputs_unfiltered (prefix, gdb_stderr); + new_line=0; + } + if (strchr(string,'\n')) /* save state for next call */ + new_line=1; + while ((ch = *string++) != '\0') { switch (ch) { @@ -140,14 +159,18 @@ monitor_debug (string) case '\\': fputs_unfiltered ("\\\\", gdb_stderr); break; case '\b': fputs_unfiltered ("\\b", gdb_stderr); break; case '\f': fputs_unfiltered ("\\f", gdb_stderr); break; - case '\n': fputs_unfiltered ("\\n\n", gdb_stderr); break; - case '\r': fputs_unfiltered ("\\r\n", gdb_stderr); break; + case '\n': fputs_unfiltered ("\\n", gdb_stderr); break; + case '\r': fputs_unfiltered ("\\r", gdb_stderr); break; case '\t': fputs_unfiltered ("\\t", gdb_stderr); break; case '\v': fputs_unfiltered ("\\v", gdb_stderr); break; } } -} + if (new_line==1) { /* print suffix if last char was a newline */ + fputs_unfiltered (suffix, gdb_stderr); + fputs_unfiltered ("\n", gdb_stderr); + } +} /* monitor_printf_noecho -- Send data to monitor, but don't expect an echo. Works just like printf. */ @@ -175,7 +198,7 @@ monitor_printf_noecho (va_alist) vsprintf (sndbuf, pattern, args); if (remote_debug > 0) - monitor_debug (sndbuf); + monitor_debug ("sent -->", sndbuf, "<--"); len = strlen (sndbuf); @@ -200,7 +223,6 @@ monitor_printf (va_alist) va_list args; char sndbuf[2000]; int len; - int i, c; #ifdef ANSI_PROTOTYPES va_start (args, pattern); @@ -213,7 +235,7 @@ monitor_printf (va_alist) vsprintf (sndbuf, pattern, args); if (remote_debug > 0) - monitor_debug (sndbuf); + monitor_debug ("sent -->", sndbuf, "<--"); len = strlen (sndbuf); @@ -223,25 +245,11 @@ monitor_printf (va_alist) if (SERIAL_WRITE(monitor_desc, sndbuf, len)) fprintf_unfiltered (stderr, "SERIAL_WRITE failed: %s\n", safe_strerror (errno)); - for (i = 0; i < len; i++) - { - trycr: - c = readchar (timeout); - - if (c != sndbuf[i]) - { - /* Don't fail if we sent a ^C, they're never echoed */ - if (sndbuf[i] == '\003') - continue; -#if 0 - if (sndbuf[i] == '\r' - && c == '\n') - goto trycr; -#endif - warning ("monitor_printf: Bad echo. Sent: \"%s\", Got: \"%.*s%c\".", - sndbuf, i, sndbuf, c); - } - } + /* We used to expect that the next immediate output was the characters we + just output, but sometimes some extra junk appeared before the characters + we expected, like an extra prompt, or a portmaster sending telnet negotiations. + So, just start searching for what we sent, and skip anything unknown. */ + monitor_expect (sndbuf, (char *)0, 0); } /* Read a character from the remote system, doing all the fancy @@ -252,14 +260,50 @@ readchar (timeout) int timeout; { int c; + static enum { last_random, last_nl, last_cr, last_crnl } state = last_random; + int looping; - c = SERIAL_READCHAR (monitor_desc, timeout); + do + { + looping = 0; + c = SERIAL_READCHAR (monitor_desc, timeout); - if (remote_debug > 0) - fputc_unfiltered (c, gdb_stderr); + if (c >= 0) + { + c &= 0x7f; + if (remote_debug > 0) + { + char buf[2]; + buf[0] = c; + buf[1] = '\0'; + monitor_debug ("read -->", buf, "<--"); + } + } + + /* Canonicialize \n\r combinations into one \r */ + if ((current_monitor->flags & MO_HANDLE_NL) != 0) + { + if ((c == '\r' && state == last_nl) + || (c == '\n' && state == last_cr)) + { + state = last_crnl; + looping = 1; + } + else if (c == '\r') + state = last_cr; + else if (c != '\n') + state = last_random; + else + { + state = last_nl; + c = '\r'; + } + } + } + while (looping); if (c >= 0) - return c & 0x7f; + return c; if (c == SERIAL_TIMEOUT) #ifdef MAINTENANCE_CMDS @@ -313,8 +357,11 @@ monitor_expect (string, buf, buflen) else c = readchar (timeout); - if (c == *p++) + /* Don't expect any ^C sent to be echoed */ + + if (*p == '\003' || c == *p) { + p++; if (*p == '\0') { immediate_quit = 0; @@ -339,7 +386,7 @@ monitor_expect (string, buf, buflen) /* Search for a regexp. */ -int +static int monitor_expect_regexp (pat, buf, buflen) struct re_pattern_buffer *pat; char *buf; @@ -527,13 +574,22 @@ monitor_open (args, mon_ops, from_tty) if (current_monitor->stop) { monitor_stop (); - monitor_expect_prompt (NULL, 0); + if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) + { + monitor_expect_prompt (NULL, 0); + } } /* wake up the monitor and see if it's alive */ for (p = mon_ops->init; *p != NULL; p++) { - monitor_printf (*p); + /* Some of the characters we send may not be echoed, + but we hope to get a prompt at the end of it all. */ + + if ((current_monitor->flags & MO_NO_ECHO_ON_OPEN) == 0) + monitor_printf(*p); + else + monitor_printf_noecho (*p); monitor_expect_prompt (NULL, 0); } @@ -566,7 +622,7 @@ monitor_open (args, mon_ops, from_tty) /* Close out all files and local state before this target loses control. */ -static void +void monitor_close (quitting) int quitting; { @@ -595,7 +651,7 @@ monitor_supply_register (regno, valstr) int regno; char *valstr; { - unsigned LONGEST val; + unsigned int val; unsigned char regbuf[MAX_REGISTER_RAW_SIZE]; char *p; @@ -632,10 +688,10 @@ monitor_resume (pid, step, sig) } } -/* Parse the output of a register dump command. A monitor specific regexp is - used to extract individual register descriptions of the form REG=VAL. Each - description is split up into a name and a value string which are passed down - to monitor specific code. */ +/* Parse the output of a register dump command. A monitor specific + regexp is used to extract individual register descriptions of the + form REG=VAL. Each description is split up into a name and a value + string which are passed down to monitor specific code. */ static char * parse_register_dump (buf, len) @@ -646,8 +702,8 @@ parse_register_dump (buf, len) { int regnamelen, vallen; char *regname, *val; -/* Element 0 points to start of register name, and element 1 points to the - start of the register value. */ + /* Element 0 points to start of register name, and element 1 + points to the start of the register value. */ struct re_registers register_strings; if (re_search (®ister_pattern, buf, len, 0, len, @@ -806,9 +862,9 @@ monitor_fetch_register (regno) monitor_printf (current_monitor->getreg.cmd, name); - /* If RESP_DELIM is specified, we search for that as a leading delimiter for - the register value. Otherwise, we just start searching from the start of - the buf. */ + /* If RESP_DELIM is specified, we search for that as a leading + delimiter for the register value. Otherwise, we just start + searching from the start of the buf. */ if (current_monitor->getreg.resp_delim) monitor_expect (current_monitor->getreg.resp_delim, NULL, 0); @@ -832,9 +888,10 @@ monitor_fetch_register (regno) regbuf[i] = '\000'; /* terminate the number */ - /* If TERM is present, we wait for that to show up. Also, (if TERM is - present), we will send TERM_CMD if that is present. In any case, we collect - all of the output into buf, and then wait for the normal prompt. */ + /* If TERM is present, we wait for that to show up. Also, (if TERM + is present), we will send TERM_CMD if that is present. In any + case, we collect all of the output into buf, and then wait for + the normal prompt. */ if (current_monitor->getreg.term) { @@ -860,6 +917,7 @@ static void monitor_dump_regs () { char buf[200]; int resp_len; + monitor_printf (current_monitor->dump_registers); resp_len = monitor_expect_prompt (buf, sizeof (buf)); parse_register_dump (buf, resp_len); @@ -895,7 +953,7 @@ monitor_store_register (regno) int regno; { char *name; - unsigned LONGEST val; + unsigned int val; name = REGNAMES (regno); if (!name) @@ -907,10 +965,10 @@ monitor_store_register (regno) monitor_printf (current_monitor->setreg.cmd, name, val); -/* It's possible that there are actually some monitors out there that will - prompt you when you set a register. In that case, you may need to add some - code here to deal with TERM and TERM_CMD (see monitor_fetch_register to get - an idea of what's needed...) */ +/* It's possible that there are actually some monitors out there that + will prompt you when you set a register. In that case, you may + need to add some code here to deal with TERM and TERM_CMD (see + monitor_fetch_register to get an idea of what's needed...) */ monitor_expect_prompt (NULL, 0); } @@ -956,7 +1014,7 @@ monitor_write_memory (memaddr, myaddr, len) char *myaddr; int len; { - unsigned LONGEST val; + unsigned int val; char *cmd; int i; @@ -1020,8 +1078,8 @@ monitor_read_memory_single (memaddr, myaddr, len) char *myaddr; int len; { - unsigned LONGEST val; - char membuf[sizeof(LONGEST) * 2 + 1]; + unsigned int val; + char membuf[sizeof(int) * 2 + 1]; char *p; char *cmd; int i; @@ -1056,7 +1114,7 @@ monitor_read_memory_single (memaddr, myaddr, len) the buf. */ if (current_monitor->getmem.resp_delim) - monitor_expect_regexp (getmem_resp_delim_pattern, NULL, 0); + monitor_expect_regexp (&getmem_resp_delim_pattern, NULL, 0); /* Now, read the appropriate number of hex digits for this loc, skipping spaces. */ @@ -1123,7 +1181,7 @@ monitor_read_memory (memaddr, myaddr, len) char *myaddr; int len; { - unsigned LONGEST val; + unsigned int val; unsigned char regbuf[MAX_REGISTER_RAW_SIZE]; char buf[512]; char *p, *p1; @@ -1370,6 +1428,8 @@ monitor_load (file, from_tty) static void monitor_stop () { + if ((current_monitor->flags & MO_SEND_BREAK_ON_STOP) != 0) + SERIAL_SEND_BREAK (monitor_desc); if (current_monitor->stop) monitor_printf_noecho (current_monitor->stop); } -- cgit v1.1