1 /* parsing for LDB monitor */
4 * This software is part of the SBCL system. See the README file for
7 * This software is derived from the CMU CL system, which was
8 * written at Carnegie Mellon University and released into the
9 * public domain. The software is in the public domain and is
10 * provided with absolutely no warranty. See the COPYING and CREDITS
11 * files for more information.
19 #if defined(LISP_FEATURE_WIN32) && defined(LISP_FEATURE_SB_THREAD)
20 #include "pthreads_win32.h"
26 #if defined(LISP_FEATURE_SB_LDB)
32 #include "interrupt.h"
39 #include "pseudo-atomic.h"
41 #include "genesis/simple-fun.h"
42 #include "genesis/fdefn.h"
43 #include "genesis/symbol.h"
44 #include "genesis/static-symbols.h"
46 static void skip_ws(char **ptr)
48 while (**ptr <= ' ' && **ptr != '\0')
52 static boolean string_to_long(char *token, uword_t *value)
62 if (token[1] == 'x') {
70 else if (token[0] == '#') {
91 while (*ptr != '\0') {
92 if (*ptr >= 'a' && *ptr <= 'f')
93 digit = *ptr + 10 - 'a';
94 else if (*ptr >= 'A' && *ptr <= 'F')
95 digit = *ptr + 10 - 'A';
96 else if (*ptr >= '0' && *ptr <= '9')
100 if (digit < 0 || digit >= base)
104 num = num * base + digit;
111 static boolean lookup_variable(char *name, lispobj *result)
113 struct var *var = lookup_by_name(name);
118 *result = var_value(var);
135 char *parse_token(ptr)
159 static boolean number_p(token)
167 okay = "abcdefABCDEF987654321d0";
170 if (token[1] == 'x' || token[1] == 'X')
176 else if (token[0] == '#') {
192 while (*token != '\0')
193 if (index(okay, *token++) == NULL)
199 uword_t parse_number(ptr)
202 char *token = parse_token(ptr);
206 printf("expected a number\n");
209 else if (string_to_long(token, &result))
212 printf("invalid number: ``%s''\n", token);
218 char *parse_addr(ptr)
221 char *token = parse_token(ptr);
225 printf("expected an address\n");
228 else if (token[0] == '$') {
229 if (!lookup_variable(token+1, &result)) {
230 printf("unknown variable: ``%s''\n", token);
237 if (!string_to_long(token, &value)) {
238 printf("invalid number: ``%s''\n", token);
241 result = (value & ~3);
244 if (!is_valid_lisp_addr((os_vm_address_t)result)) {
245 printf("invalid Lisp-level address: %p\n", (void *)result);
249 return (char *)result;
252 static boolean lookup_symbol(char *name, lispobj *result)
257 /* Search static space. */
258 headerptr = (lispobj *)STATIC_SPACE_START;
260 (lispobj *)SymbolValue(STATIC_SPACE_FREE_POINTER,0) -
261 (lispobj *)STATIC_SPACE_START;
262 if (search_for_symbol(name, &headerptr, &count)) {
263 *result = make_lispobj(headerptr,OTHER_POINTER_LOWTAG);
267 /* Search dynamic space. */
268 #if defined(LISP_FEATURE_GENCGC)
269 headerptr = (lispobj *)DYNAMIC_SPACE_START;
270 count = (lispobj *)get_alloc_pointer() - headerptr;
272 headerptr = (lispobj *)current_dynamic_space;
273 count = dynamic_space_free_pointer - headerptr;
276 if (search_for_symbol(name, &headerptr, &count)) {
277 *result = make_lispobj(headerptr, OTHER_POINTER_LOWTAG);
285 parse_regnum(char *s)
287 if ((s[1] == 'R') || (s[1] == 'r')) {
293 /* skip the $R part and call atoi on the number */
294 regnum = atoi(s + 2);
295 if ((regnum >= 0) && (regnum < NREGS))
302 for (i = 0; i < NREGS ; i++)
303 if (strcasecmp(s + 1, lisp_register_names[i]) == 0)
304 #ifdef LISP_FEATURE_X86
314 lispobj parse_lispobj(ptr)
317 struct thread *thread=arch_os_get_current_thread();
318 char *token = parse_token(ptr);
324 printf("expected an object\n");
326 } else if (token[0] == '$') {
327 if (isalpha(token[1])) {
330 os_context_t *context;
332 free_ici = fixnum_value(SymbolValue(FREE_INTERRUPT_CONTEXT_INDEX,thread));
335 printf("Variable ``%s'' is not valid -- there is no current interrupt context.\n", token);
339 context = thread->interrupt_contexts[free_ici - 1];
341 regnum = parse_regnum(token);
343 printf("bogus register: ``%s''\n", token);
347 result = *os_context_register_addr(context, regnum);
348 } else if (!lookup_variable(token+1, &result)) {
349 printf("unknown variable: ``%s''\n", token);
352 } else if (token[0] == '@') {
353 if (string_to_long(token+1, &pointer)) {
355 if (is_valid_lisp_addr((os_vm_address_t)pointer))
356 result = *(lispobj *)pointer;
358 printf("invalid Lisp-level address: ``%s''\n", token+1);
363 printf("invalid address: ``%s''\n", token+1);
367 else if (string_to_long(token, &value))
369 else if (lookup_symbol(token, &result))
372 printf("invalid Lisp object: ``%s''\n", token);
379 #endif /* defined(LISP_FEATURE_SB_LDB) */