diff options
Diffstat (limited to 'gdb/ocd.c')
| -rw-r--r-- | gdb/ocd.c | 77 |
1 files changed, 56 insertions, 21 deletions
diff --git a/gdb/ocd.c b/gdb/ocd.c index fdcd6476ca0..ad575bc6bdc 100644 --- a/gdb/ocd.c +++ b/gdb/ocd.c @@ -1,4 +1,4 @@ -/* Remote target communications for the Macraigor Systems BDM Wiggler +/* Target communications support for Macraigor Systems' On-Chip Debugging Copyright 1996, 1997 Free Software Foundation, Inc. This file is part of GDB. @@ -38,9 +38,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Prototypes for local functions */ -static int ocd_write_bytes PARAMS ((CORE_ADDR memaddr, - char *myaddr, int len)); - static int ocd_read_bytes PARAMS ((CORE_ADDR memaddr, char *myaddr, int len)); @@ -101,16 +98,17 @@ ocd_error (s, error_code) case 0x1: s = "Unknown fault"; break; case 0x2: s = "Power failed"; break; case 0x3: s = "Cable disconnected"; break; - case 0x4: s = "Couldn't enter BDM"; break; + case 0x4: s = "Couldn't enter OCD mode"; break; case 0x5: s = "Target stuck in reset"; break; - case 0x6: s = "Port not configured"; break; + case 0x6: s = "OCD hasn't been initialized"; break; case 0x7: s = "Write verify failed"; break; + case 0x8: s = "Reg buff error (during MPC5xx fp reg read/write)"; break; + case 0x9: s = "Invalid CPU register access attempt failed"; break; case 0x11: s = "Bus error"; break; case 0x12: s = "Checksum error"; break; case 0x13: s = "Illegal command"; break; case 0x14: s = "Parameter error"; break; case 0x15: s = "Internal error"; break; - case 0x16: s = "Register buffer error"; break; case 0x80: s = "Flash erase error"; break; default: sprintf (buf, "Unknown error code %d", error_code); @@ -160,15 +158,7 @@ ocd_start_remote (dummy) SERIAL_SEND_BREAK (ocd_desc); /* Wake up the wiggler */ - ocd_do_command (OCD_AYT, &status, &pktlen); - - p = ocd_do_command (OCD_GET_VERSION, &status, &pktlen); - - printf_unfiltered ("[Wiggler version %x.%x, capability 0x%x]\n", - p[0], p[1], (p[2] << 16) | p[3]); - -#if 1 - speed = 0; /* 80; /* Divide clock by 4000 */ + speed = 0; /* 80; /* Divide clock by 4000 */ buf[0] = OCD_INIT; buf[1] = speed >> 8; @@ -185,7 +175,13 @@ ocd_start_remote (dummy) if (error_code != 0) ocd_error ("OCD_INIT:", error_code); -#endif + + ocd_do_command (OCD_AYT, &status, &pktlen); + + p = ocd_do_command (OCD_GET_VERSION, &status, &pktlen); + + printf_unfiltered ("[Wiggler version %x.%x, capability 0x%x]\n", + p[0], p[1], (p[2] << 16) | p[3]); #if 0 /* Reset the target */ @@ -236,6 +232,11 @@ ocd_start_remote (dummy) ocd_put_packet (buf, 2); p = ocd_get_packet (buf[0], &pktlen, remote_timeout); + buf[0] = OCD_LOG_FILE; + buf[1] = 2; /* append to existing WIGGLERS.LOG */ + ocd_put_packet (buf, 2); + p = ocd_get_packet (buf[0], &pktlen, remote_timeout); + return 1; } @@ -606,7 +607,7 @@ ocd_prepare_to_store () static int write_mem_command = OCD_WRITE_MEM; -static int +int ocd_write_bytes (memaddr, myaddr, len) CORE_ADDR memaddr; char *myaddr; @@ -1180,6 +1181,9 @@ ocd_do_command (cmd, statusp, lenp) int status, error_code; char errbuf[100]; + unsigned char logbuf[100]; + int logpktlen; + buf[0] = cmd; ocd_put_packet (buf, 1); /* Send command */ p = ocd_get_packet (*buf, lenp, remote_timeout); @@ -1203,6 +1207,16 @@ ocd_do_command (cmd, statusp, lenp) *statusp = status; + logbuf[0] = OCD_LOG_FILE; + logbuf[1] = 3; /* close existing WIGGLERS.LOG */ + ocd_put_packet (logbuf, 2); + ocd_get_packet (logbuf[0], &logpktlen, remote_timeout); + + logbuf[0] = OCD_LOG_FILE; + logbuf[1] = 2; /* append to existing WIGGLERS.LOG */ + ocd_put_packet (logbuf, 2); + ocd_get_packet (logbuf[0], &logpktlen, remote_timeout); + return p + 3; } @@ -1264,9 +1278,17 @@ ocd_load (args, from_tty) clear_symtab_users (); } +/* This should be defined in each targets tm.h file */ +/* But we want to be able to compile this file for some configurations + not yet supported fully */ + +#ifndef BDM_BREAKPOINT +#define BDM_BREAKPOINT 0x4a, 0xfa /* BGND insn on CPU32*/ +#endif + /* BDM (at least on CPU32) uses a different breakpoint */ -static int +int ocd_insert_breakpoint (addr, contents_cache) CORE_ADDR addr; char *contents_cache; @@ -1274,10 +1296,23 @@ ocd_insert_breakpoint (addr, contents_cache) static char break_insn[] = {BDM_BREAKPOINT}; int val; - val = target_read_memory (addr, contents_cache, sizeof break_insn); + val = target_read_memory (addr, contents_cache, sizeof (break_insn)); if (val == 0) - val = target_write_memory (addr, break_insn, sizeof break_insn); + val = target_write_memory (addr, break_insn, sizeof (break_insn)); + + return val; +} + +int +ocd_remove_breakpoint (addr, contents_cache) + CORE_ADDR addr; + char *contents_cache; +{ + static char break_insn[] = {BDM_BREAKPOINT}; + int val; + + val = target_write_memory (addr, contents_cache, sizeof (break_insn)); return val; } |