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Mon Aug 11 16:22:36 1997 Geoffrey Noer <noer@cygnus.com>

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* ocd.c (ocd_insert_breakpoint, ocd_remove_breakpoint): macro
        BDM_BREAKPOINT already has braces around it, remove erroneous ones.
        * ser-ocd.c (ocd_write): conditionalize on _WIN32 instead of
        __CYGWIN32__
        * config/powerpc/tm-ppc-eabi.h: remove BDM_NUM_REGS, BDM_REGMAP
        * ppc-bdm.c: move BDM_NUM_REGS, BDM_REGMAP here from tm.h file,
        fill in doc fields of bdm_ppc_ops.
        (bdm_ppc_fetch_registers): don't ask for invalid registers such
        as the MQ or floating point regs not present on ppc 8xx boards
        (bdm_ppc_store_registers): don't write those same invalid registers
        * config/i386/cygwin32.mh: stop including ocd.o ser-ocd.o
        * config/powerpc/ppc-eabi.mt:
        * config/powerpc/ppcle-eabi.mt:
        * config/powerpc/ppc-sim.mt:
        * config/powerpc/ppcle-sim.mt: include ser-ocd.o
This commit is contained in:
Geoffrey Noer 1997-08-11 23:40:26 +00:00
parent 53a9bb1a32
commit 2549d2b385
9 changed files with 123 additions and 20 deletions
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18
gdb/ChangeLog
View file

@ -1,3 +1,21 @@
Mon Aug 11 16:22:36 1997 Geoffrey Noer <noer@cygnus.com>
* ocd.c (ocd_insert_breakpoint, ocd_remove_breakpoint): macro
BDM_BREAKPOINT already has braces around it, remove erroneous ones.
* ser-ocd.c (ocd_write): conditionalize on _WIN32 instead of
__CYGWIN32__
* config/powerpc/tm-ppc-eabi.h: remove BDM_NUM_REGS, BDM_REGMAP
* ppc-bdm.c: move BDM_NUM_REGS, BDM_REGMAP here from tm.h file,
fill in doc fields of bdm_ppc_ops.
(bdm_ppc_fetch_registers): don't ask for invalid registers such
as the MQ or floating point regs not present on ppc 8xx boards
(bdm_ppc_store_registers): don't write those same invalid registers
* config/i386/cygwin32.mh: stop including ocd.o ser-ocd.o
* config/powerpc/ppc-eabi.mt:
* config/powerpc/ppcle-eabi.mt:
* config/powerpc/ppc-sim.mt:
* config/powerpc/ppcle-sim.mt: include ser-ocd.o
Mon Aug 11 16:08:52 1997 Fred Fish <fnf@cygnus.com>
* frame.h (enum lval_type): Conditionalize on __GNUC__

2
gdb/config/i386/cygwin32.mh
View file

@ -1,6 +1,6 @@
MH_CFLAGS=
XM_FILE=xm-cygwin32.h
XDEPFILES=ser-tcp.o ocd.o ser-ocd.o
XDEPFILES=ser-tcp.o
TERMCAP=
NATDEPFILES= win32-nat.o
NAT_FILE=../nm-empty.h

2
gdb/config/powerpc/ppc-eabi.mt
View file

@ -1,3 +1,3 @@
# Target: PowerPC running eabi
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o ppc-bdm.o
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o ppc-bdm.o ocd.o ser-ocd.o
TM_FILE= tm-ppc-eabi.h

2
gdb/config/powerpc/ppc-sim.mt
View file

@ -1,5 +1,5 @@
# Target: PowerPC running eabi under the simulator
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o ppc-bdm.o
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o ppc-bdm.o ocd.o ser-ocd.o
TM_FILE= tm-ppc-eabi.h
SIM_OBS = remote-sim.o

2
gdb/config/powerpc/ppcle-eabi.mt
View file

@ -1,3 +1,3 @@
# Target: PowerPC running eabi in little endian mode
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o ppc-bdm.o ocd.o
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o ppc-bdm.o ocd.o ser-ocd.o
TM_FILE= tm-ppcle-eabi.h

2
gdb/config/powerpc/ppcle-sim.mt
View file

@ -1,5 +1,5 @@
# Target: PowerPC running eabi in little endian mode under the simulator
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o ppc-bdm.o ocd.o
TDEPFILES= rs6000-tdep.o monitor.o dsrec.o ppcbug-rom.o ppc-bdm.o ocd.o ser-ocd.o
TM_FILE= tm-ppcle-eabi.h
SIM_OBS = remote-sim.o

9
gdb/ocd.c
View file

@ -1278,13 +1278,12 @@ ocd_load (args, from_tty)
clear_symtab_users ();
}
/* This should be defined in each targets tm.h file */
/* This should be defined for each target */
/* But we want to be able to compile this file for some configurations
not yet supported fully */
#ifndef BDM_BREAKPOINT
#define BDM_BREAKPOINT {0x0,0x0,0x0,0x0} /* For ppc 8xx */
#endif
/* #define BDM_BREAKPOINT {0x4a,0xfa} /* BGND insn used for CPU32 */
/* BDM (at least on CPU32) uses a different breakpoint */
@ -1293,7 +1292,7 @@ ocd_insert_breakpoint (addr, contents_cache)
CORE_ADDR addr;
char *contents_cache;
{
static char break_insn[] = {BDM_BREAKPOINT};
static char break_insn[] = BDM_BREAKPOINT;
int val;
val = target_read_memory (addr, contents_cache, sizeof (break_insn));
@ -1309,7 +1308,7 @@ ocd_remove_breakpoint (addr, contents_cache)
CORE_ADDR addr;
char *contents_cache;
{
static char break_insn[] = {BDM_BREAKPOINT};
static char break_insn[] = BDM_BREAKPOINT;
int val;
val = target_write_memory (addr, contents_cache, sizeof (break_insn));

102
gdb/ppc-bdm.c
View file

@ -1,5 +1,5 @@
/* Remote target communications for the Macraigor Systems BDM Wiggler
talking to a Motorola PPC 505.
talking to a Motorola PPC 8xx ADS board
Copyright 1996, 1997 Free Software Foundation, Inc.
This file is part of GDB.
@ -47,11 +47,34 @@ static void bdm_ppc_store_registers PARAMS ((int regno));
extern struct target_ops bdm_ppc_ops; /* Forward decl */
/*#define BDM_NUM_REGS 71*/
#define BDM_NUM_REGS 24
#define BDM_REGMAP \
2048, 2049, 2050, 2051, 2052, 2053, 2054, 2055, /* r0-r7 */ \
2056, 2057, 2058, 2059, 2060, 2061, 2062, 2063, /* r8-r15 */ \
2064, 2065, 2066, 2067, 2068, 2069, 2070, 2071, /* r16-r23 */ \
2072, 2073, 2074, 2075, 2076, 2077, 2078, 2079, /* r24-r31 */ \
\
2080, 2082, 2084, 2086, 2088, 2090, 2092, 2094, /* fp0->fp8 */ \
2096, 2098, 2100, 2102, 2104, 2106, 2108, 2110, /* fp0->fp8 */ \
2112, 2114, 2116, 2118, 2120, 2122, 2124, 2126, /* fp0->fp8 */ \
2128, 2130, 2132, 2134, 2136, 2138, 2140, 2142, /* fp0->fp8 */ \
\
26, /* pc (SRR0 (SPR 26)) */ \
2146, /* ps (MSR) */ \
2144, /* cnd (CR) */ \
8, /* lr (SPR 8) */ \
9, /* cnt (CTR (SPR 9)) */ \
1, /* xer (SPR 1) */ \
0, /* mq (SPR 0) */
char nowatchdog[4] = {0xff,0xff,0xff,0x88};
/* Open a connection to a remote debugger.
NAME is the filename used for communication. */
char nowatchdog[4] = {0xff,0xff,0xff,0x88};
static void
bdm_ppc_open (name, from_tty)
char *name;
@ -107,6 +130,7 @@ bdm_ppc_wait (pid, target_status)
static int bdm_regmap[] = {BDM_REGMAP};
/* Read the remote registers into regs.
Fetch register REGNO, or all registers if REGNO == -1
The Wiggler uses the following codes to access the registers:
@ -118,7 +142,7 @@ static int bdm_regmap[] = {BDM_REGMAP};
26 - SPR 26 - SRR0 - pc
1024 -> 2047 DCR 0 -> DCR 1023 (IBM PPC 4xx only)
2048 -> 2079 R0 -> R31
2080 -> 2143 FP0 -> FP31 (64 bit regs)
2080 -> 2143 FP0 -> FP31 (64 bit regs) (IBM PPC 5xx only)
2144 CR (known as cnd in GDB)
2145 FPCSR
2146 MSR (known as ps in GDB)
@ -129,10 +153,20 @@ bdm_ppc_fetch_registers (regno)
int regno;
{
int i;
unsigned char *regs;
unsigned char *regs, *beginregs, *endregs, *almostregs;
unsigned char midregs[32];
unsigned char mqreg[1];
int first_regno, last_regno;
int first_bdm_regno, last_bdm_regno;
int reglen;
int reglen, beginreglen, endreglen;
#if 1
for (i = 0; i < (FPLAST_REGNUM - FP0_REGNUM + 1); i++)
{
midregs[i] = -1;
}
mqreg[0] = -1;
#endif
if (regno == -1)
{
@ -157,7 +191,44 @@ bdm_ppc_fetch_registers (regno)
return; /* Unsupported register */
}
#if 1
/* Can't ask for floating point regs on ppc 8xx, also need to
avoid asking for the mq register. */
if (first_regno == last_regno) /* only want one reg */
{
/* printf("Asking for register %d\n", first_regno); */
/* if asking for an invalid register */
if ((first_regno == MQ_REGNUM) ||
((first_regno >= FP0_REGNUM) && (first_regno <= FPLAST_REGNUM)))
{
/* printf("invalid reg request!\n"); */
supply_register (first_regno, NULL);
return; /* Unsupported register */
}
else
{
regs = ocd_read_bdm_registers (first_bdm_regno,
last_bdm_regno, &reglen);
}
}
else /* want all regs */
{
/* printf("Asking for registers %d to %d\n", first_regno, last_regno); */
beginregs = ocd_read_bdm_registers (first_bdm_regno,
FP0_REGNUM - 1, &beginreglen);
endregs = (strcat (midregs,
ocd_read_bdm_registers (FPLAST_REGNUM + 1,
last_bdm_regno - 1, &endreglen)));
almostregs = (strcat (beginregs, endregs));
regs = (strcat (almostregs, mqreg));
reglen = beginreglen + 32 + endreglen + 1;
}
#endif
#if 0
regs = ocd_read_bdm_registers (first_bdm_regno, last_bdm_regno, &reglen);
#endif
for (i = first_regno; i <= last_regno; i++)
{
@ -215,16 +286,31 @@ bdm_ppc_store_registers (regno)
bdm_regno = bdm_regmap [i];
/* only attempt to write if it's a valid ppc 8xx register */
/* (need to avoid FP regs and MQ reg) */
if ((i != MQ_REGNUM) && ((i < FP0_REGNUM) || (i > FPLAST_REGNUM)))
{
/* printf("write valid reg %d\n", bdm_regno); */
ocd_write_bdm_registers (bdm_regno, registers + REGISTER_BYTE (i), 4);
}
/*
else if (i == MQ_REGNUM)
printf("don't write invalid reg %d (MQ_REGNUM)\n", bdm_regno);
else
printf("don't write invalid reg %d\n", bdm_regno);
*/
}
}
/* Define the target subroutine names */
struct target_ops bdm_ppc_ops = {
"ocd", /* to_shortname */
"", /* to_longname */
"", /* to_doc */
"Remote target with On-Chip Debugging", /* to_longname */
"Use a remote target with On-Chip Debugging. To use a target box,\n\
specify the serial device it is connected to (e.g. /dev/ttya). To use\n\
a wiggler, specify wiggler and then the port it is connected to\n\
(e.g. wiggler lpt1).", /* to_doc */
bdm_ppc_open, /* to_open */
ocd_close, /* to_close */
NULL, /* to_attach */

2
gdb/ser-ocd.c
View file

@ -159,7 +159,7 @@ ocd_write (scb, str, len)
{
char c;
#ifdef __CYGWIN32__
#ifdef _WIN32
/* send packet to Wigglers.dll and store response so we can give it to
remote-wiggler.c when get_packet is run */
dll_do_command (str, from_wiggler_buffer);