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012be3ce DP |
1 | /* Remote target glue for the SPARC Sparclet ROM monitor. |
2 | Copyright 1995, 1996 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GDB. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
19 | ||
20 | ||
21 | #include "defs.h" | |
22 | #include "gdbcore.h" | |
23 | #include "target.h" | |
24 | #include "monitor.h" | |
25 | #include "serial.h" | |
26 | #include "srec.h" | |
27 | #include "symtab.h" | |
28 | #include "symfile.h" /* for generic_load */ | |
29 | ||
a7f6f9ed | 30 | #if 0 /* Do we really need all this Unix stuff here? */ |
012be3ce DP |
31 | #if !defined (HAVE_TERMIOS) && !defined (HAVE_TERMIO) && !defined (HAVE_SGTTY) |
32 | #define HAVE_SGTTY | |
33 | #endif | |
34 | ||
35 | #ifdef HAVE_SGTTY | |
36 | #include <sys/ioctl.h> | |
37 | #endif | |
38 | ||
39 | #include <sys/types.h> /* Needed by file.h on Sys V */ | |
40 | #include <sys/file.h> | |
41 | #include <signal.h> | |
42 | #include <sys/stat.h> | |
a7f6f9ed | 43 | #endif /* Unix stuff */ |
012be3ce DP |
44 | |
45 | #define USE_GENERIC_LOAD | |
46 | #define USE_SW_BREAKS | |
47 | ||
48 | static struct target_ops sparclet_ops; | |
49 | ||
50 | static void sparclet_open PARAMS ((char *args, int from_tty)); | |
51 | ||
52 | #ifdef USE_GENERIC_LOAD | |
53 | ||
54 | static void | |
55 | sparclet_load_gen (filename, from_tty) | |
56 | char *filename; | |
57 | int from_tty; | |
58 | { | |
59 | extern int inferior_pid; | |
60 | ||
61 | generic_load (filename, from_tty); | |
62 | /* Finally, make the PC point at the start address */ | |
63 | if (exec_bfd) | |
64 | write_pc (bfd_get_start_address (exec_bfd)); | |
65 | ||
66 | inferior_pid = 0; /* No process now */ | |
67 | } | |
68 | ||
a7f6f9ed MS |
69 | #endif |
70 | ||
71 | #ifdef USE_XMODEM_LOAD | |
012be3ce DP |
72 | |
73 | static void | |
74 | sparclet_xmodem_load (desc, file, hashmark) | |
75 | serial_t desc; | |
76 | char *file; | |
77 | int hashmark; | |
78 | { | |
79 | bfd *abfd; | |
80 | asection *s; | |
81 | char *buffer; | |
82 | int i; | |
83 | ||
84 | buffer = alloca (XMODEM_PACKETSIZE); | |
85 | abfd = bfd_openr (file, 0); | |
86 | if (!abfd) | |
87 | { | |
88 | printf_filtered ("Unable to open file %s\n", file); | |
89 | return; | |
90 | } | |
91 | if (bfd_check_format (abfd, bfd_object) == 0) | |
92 | { | |
93 | printf_filtered ("File is not an object file\n"); | |
94 | return; | |
95 | } | |
96 | for (s = abfd->sections; s; s = s->next) | |
97 | if (s->flags & SEC_LOAD) | |
98 | { | |
99 | bfd_size_type section_size; | |
100 | printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma, | |
101 | s->vma + s->_raw_size); | |
102 | gdb_flush (gdb_stdout); | |
103 | monitor_printf (current_monitor->load, s->vma); | |
104 | if (current_monitor->loadresp) | |
105 | monitor_expect (current_monitor->loadresp, NULL, 0); | |
106 | xmodem_init_xfer (desc); | |
107 | section_size = bfd_section_size (abfd, s); | |
108 | for (i = 0; i < section_size; i += XMODEM_DATASIZE) | |
109 | { | |
110 | int numbytes; | |
111 | numbytes = min (XMODEM_DATASIZE, section_size - i); | |
112 | bfd_get_section_contents (abfd, s, buffer + XMODEM_DATAOFFSET, i, | |
113 | numbytes); | |
114 | xmodem_send_packet (desc, buffer, numbytes, hashmark); | |
115 | if (hashmark) | |
116 | { | |
117 | putchar_unfiltered ('#'); | |
118 | gdb_flush (gdb_stdout); | |
119 | } | |
120 | } /* Per-packet (or S-record) loop */ | |
121 | xmodem_finish_xfer (desc); | |
122 | monitor_expect_prompt (NULL, 0); | |
123 | putchar_unfiltered ('\n'); | |
124 | } /* Loadable sections */ | |
125 | if (hashmark) | |
126 | putchar_unfiltered ('\n'); | |
127 | } | |
128 | ||
129 | static void | |
130 | sparclet_load (desc, file, hashmark) | |
131 | serial_t desc; | |
132 | char *file; | |
133 | int hashmark; | |
134 | { | |
135 | ??? | |
136 | } | |
a7f6f9ed | 137 | #endif /* USE_XMODEM_LOAD */ |
012be3ce DP |
138 | |
139 | /* This array of registers need to match the indexes used by GDB. | |
140 | This exists because the various ROM monitors use different strings | |
141 | than does GDB, and don't necessarily support all the registers | |
142 | either. So, typing "info reg sp" becomes a "r30". */ | |
143 | ||
144 | /*PSR 0x00000080 impl ver icc AW LE EE EC EF PIL S PS ET CWP WIM | |
145 | 0x0 0x0 0x0 0 0 0 0 0 0x0 1 0 0 0x00 0x2 | |
146 | 0000010 | |
147 | INS LOCALS OUTS GLOBALS | |
148 | 0 0x00000000 0x00000000 0x00000000 0x00000000 | |
149 | 1 0x00000000 0x00000000 0x00000000 0x00000000 | |
150 | 2 0x00000000 0x00000000 0x00000000 0x00000000 | |
151 | 3 0x00000000 0x00000000 0x00000000 0x00000000 | |
152 | 4 0x00000000 0x00000000 0x00000000 0x00000000 | |
153 | 5 0x00000000 0x00001000 0x00000000 0x00000000 | |
154 | 6 0x00000000 0x00000000 0x123f0000 0x00000000 | |
155 | 7 0x00000000 0x00000000 0x00000000 0x00000000 | |
156 | pc: 0x12010000 0x00000000 unimp | |
157 | npc: 0x12010004 0x00001000 unimp 0x1000 | |
158 | tbr: 0x00000000 | |
159 | y: 0x00000000 | |
160 | */ | |
161 | /* these correspond to the offsets from tm-* files from config directories */ | |
162 | ||
163 | /* is wim part of psr?? */ | |
164 | /* monitor wants lower case */ | |
165 | static char *sparclet_regnames[NUM_REGS] = REGISTER_NAMES; | |
166 | ||
a7f6f9ed MS |
167 | |
168 | /* Function: sparclet_supply_register | |
169 | Just returns with no action. | |
170 | This function is required, because parse_register_dump (monitor.c) | |
171 | expects to be able to call it. If we don't supply something, it will | |
172 | call a null pointer and core-dump. Since this function does not | |
173 | actually do anything, GDB will request the registers individually. */ | |
174 | ||
175 | static void | |
176 | sparclet_supply_register (regname, regnamelen, val, vallen) | |
177 | char *regname; | |
178 | int regnamelen; | |
179 | char *val; | |
180 | int vallen; | |
181 | { | |
182 | return; | |
183 | } | |
184 | ||
185 | ||
186 | ||
012be3ce DP |
187 | /* Define the monitor command strings. Since these are passed directly |
188 | through to a printf style function, we may include formatting | |
189 | strings. We also need a CR or LF on the end. */ | |
190 | ||
191 | /* need to pause the monitor for timing reasons, so slow it down */ | |
192 | ||
193 | static char *sparclet_inits[] = {"\n\r\r\n", NULL}; | |
194 | ||
195 | static struct monitor_ops sparclet_cmds = | |
196 | { | |
a7f6f9ed MS |
197 | MO_CLR_BREAK_USES_ADDR | |
198 | MO_HEX_PREFIX | | |
199 | MO_NO_ECHO_ON_OPEN | | |
200 | MO_NO_ECHO_ON_SETMEM | | |
201 | MO_RUN_FIRST_TIME | | |
202 | MO_GETMEM_READ_SINGLE, /* flags */ | |
203 | sparclet_inits, /* Init strings */ | |
012be3ce DP |
204 | "cont\r", /* continue command */ |
205 | "step\r", /* single step */ | |
a7f6f9ed MS |
206 | "\r", /* break interrupts the program */ |
207 | "+bp %x\r", /* set a breakpoint */ | |
012be3ce | 208 | /* can't use "br" because only 2 hw bps are supported */ |
a7f6f9ed MS |
209 | "-bp %x\r", /* clear a breakpoint */ |
210 | "-bp\r", /* clear all breakpoints */ | |
211 | "fill %x -n %x -v %x -b\r", /* fill (start length val) */ | |
012be3ce DP |
212 | /* can't use "fi" because it takes words, not bytes */ |
213 | { | |
214 | /* ex [addr] [-n count] [-b|-s|-l] default: ex cur -n 1 -b */ | |
a7f6f9ed MS |
215 | "ex %x -b\r%x\rq\r", /* setmem.cmdb (addr, value) */ |
216 | "ex %x -s\r%x\rq\r", /* setmem.cmdw (addr, value) */ | |
217 | "ex %x -l\r%x\rq\r", /* setmem.cmdl (addr, value) */ | |
012be3ce | 218 | NULL, /* setmem.cmdll (addr, value) */ |
a7f6f9ed MS |
219 | NULL, /*": " */ /* setmem.resp_delim */ |
220 | NULL, /*"? " */ /* setmem.term */ | |
221 | NULL, /*"q\r" */ /* setmem.term_cmd */ | |
012be3ce DP |
222 | }, |
223 | { | |
224 | /* since the parsing of multiple bytes is difficult due to | |
225 | interspersed addresses, we'll only read 1 value at a time, | |
226 | even tho these can handle a count */ | |
227 | /* we can use -n to set count to read, but may have to parse? */ | |
228 | "ex %x -n 1 -b\r", /* getmem.cmdb (addr, #bytes) */ | |
229 | "ex %x -n 1 -s\r", /* getmem.cmdw (addr, #swords) */ | |
230 | "ex %x -n 1 -l\r", /* getmem.cmdl (addr, #words) */ | |
a7f6f9ed | 231 | NULL, /* getmem.cmdll (addr, #dwords) */ |
012be3ce DP |
232 | ": ", /* getmem.resp_delim */ |
233 | NULL, /* getmem.term */ | |
234 | NULL, /* getmem.term_cmd */ | |
235 | }, | |
236 | { | |
237 | "reg %s 0x%x\r", /* setreg.cmd (name, value) */ | |
238 | NULL, /* setreg.resp_delim */ | |
239 | NULL, /* setreg.term */ | |
240 | NULL /* setreg.term_cmd */ | |
241 | }, | |
242 | { | |
a7f6f9ed MS |
243 | "reg %s\r", /* getreg.cmd (name) */ |
244 | " ", /* getreg.resp_delim */ | |
012be3ce DP |
245 | NULL, /* getreg.term */ |
246 | NULL, /* getreg.term_cmd */ | |
247 | }, | |
248 | "reg\r", /* dump_registers */ | |
249 | "\\(\\w+\\)=\\([0-9a-fA-F]+\\)", /* register_pattern */ | |
a7f6f9ed | 250 | sparclet_supply_register, /* supply_register */ |
012be3ce DP |
251 | #ifdef USE_GENERIC_LOAD |
252 | NULL, /* load_routine (defaults to SRECs) */ | |
253 | NULL, /* download command */ | |
254 | NULL, /* load response */ | |
255 | #else | |
a7f6f9ed MS |
256 | NULL, /* load_routine (defaults to SRECs) */ |
257 | /* load [c|a] [s | f | r [addr count]] */ | |
258 | "load c s\r", /* download command (srecs on console) */ | |
259 | "load: ", /* load response */ | |
012be3ce | 260 | #endif |
a7f6f9ed | 261 | "monitor>", /* monitor command prompt */ |
012be3ce | 262 | /* yikes! gdb core dumps without this delimitor!! */ |
a7f6f9ed | 263 | "\r", /* end-of-command delimitor */ |
012be3ce | 264 | NULL, /* optional command terminator */ |
a7f6f9ed | 265 | &sparclet_ops, /* target operations */ |
012be3ce DP |
266 | SERIAL_1_STOPBITS, /* number of stop bits */ |
267 | sparclet_regnames, /* registers names */ | |
268 | MONITOR_OPS_MAGIC /* magic */ | |
269 | }; | |
270 | ||
271 | static void | |
272 | sparclet_open (args, from_tty) | |
273 | char *args; | |
274 | int from_tty; | |
275 | { | |
276 | monitor_open (args, &sparclet_cmds, from_tty); | |
277 | } | |
278 | ||
279 | void | |
280 | _initialize_sparclet () | |
281 | { | |
a7f6f9ed MS |
282 | int i; |
283 | ||
284 | for (i = 0; i < NUM_REGS; i++) | |
285 | if (sparclet_regnames[i][0] == 'c' || | |
286 | sparclet_regnames[i][0] == 'a') | |
287 | sparclet_regnames[i] = 0; /* mon can't report c* or a* regs */ | |
012be3ce | 288 | |
a7f6f9ed MS |
289 | sparclet_regnames[0] = 0; /* mon won't report %G0 */ |
290 | ||
291 | init_monitor_ops (&sparclet_ops); | |
012be3ce DP |
292 | sparclet_ops.to_shortname = "sparclet"; /* for the target command */ |
293 | sparclet_ops.to_longname = "SPARC Sparclet monitor"; | |
294 | #ifdef USE_GENERIC_LOAD | |
295 | sparclet_ops.to_load = sparclet_load_gen; /* FIXME - should go back and try "do" */ | |
296 | #endif | |
297 | #ifdef USE_SW_BREAKS | |
298 | /* use SW breaks; target only supports 2 HW breakpoints */ | |
299 | sparclet_ops.to_insert_breakpoint = memory_insert_breakpoint; | |
300 | sparclet_ops.to_remove_breakpoint = memory_remove_breakpoint; | |
301 | #endif | |
302 | ||
303 | sparclet_ops.to_doc = | |
304 | "Use a board running the Sparclet debug monitor.\n\ | |
305 | Specify the serial device it is connected to (e.g. /dev/ttya)."; | |
306 | ||
307 | sparclet_ops.to_open = sparclet_open; | |
308 | add_target (&sparclet_ops); | |
309 | } | |
310 |