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.
21 #if defined(LISP_FEATURE_SB_LDB)
27 #include "interrupt.h"
35 #include "genesis/simple-fun.h"
36 #include "genesis/fdefn.h"
37 #include "genesis/symbol.h"
38 #include "genesis/static-symbols.h"
40 static void skip_ws(char **ptr)
42 while (**ptr <= ' ' && **ptr != '\0')
46 static boolean string_to_long(char *token, long *value)
56 if (token[1] == 'x') {
64 else if (token[0] == '#') {
85 while (*ptr != '\0') {
86 if (*ptr >= 'a' && *ptr <= 'f')
87 digit = *ptr + 10 - 'a';
88 else if (*ptr >= 'A' && *ptr <= 'F')
89 digit = *ptr + 10 - 'A';
90 else if (*ptr >= '0' && *ptr <= '9')
94 if (digit < 0 || digit >= base)
98 num = num * base + digit;
105 static boolean lookup_variable(char *name, lispobj *result)
107 struct var *var = lookup_by_name(name);
112 *result = var_value(var);
129 char *parse_token(ptr)
153 static boolean number_p(token)
161 okay = "abcdefABCDEF987654321d0";
164 if (token[1] == 'x' || token[1] == 'X')
170 else if (token[0] == '#') {
186 while (*token != '\0')
187 if (index(okay, *token++) == NULL)
193 long parse_number(ptr)
196 char *token = parse_token(ptr);
200 printf("expected a number\n");
203 else if (string_to_long(token, &result))
206 printf("invalid number: ``%s''\n", token);
212 char *parse_addr(ptr)
215 char *token = parse_token(ptr);
219 printf("expected an address\n");
222 else if (token[0] == '$') {
223 if (!lookup_variable(token+1, &result)) {
224 printf("unknown variable: ``%s''\n", token);
231 if (!string_to_long(token, &value)) {
232 printf("invalid number: ``%s''\n", token);
235 result = (value & ~3);
238 if (!is_valid_lisp_addr((os_vm_address_t)result)) {
239 printf("invalid Lisp-level address: %p\n", (void *)result);
243 return (char *)result;
246 static boolean lookup_symbol(char *name, lispobj *result)
251 /* Search static space. */
252 headerptr = (lispobj *)STATIC_SPACE_START;
254 (lispobj *)SymbolValue(STATIC_SPACE_FREE_POINTER,0) -
255 (lispobj *)STATIC_SPACE_START;
256 if (search_for_symbol(name, &headerptr, &count)) {
257 *result = make_lispobj(headerptr,OTHER_POINTER_LOWTAG);
261 /* Search dynamic space. */
262 #if defined(LISP_FEATURE_GENCGC)
263 headerptr = (lispobj *)DYNAMIC_SPACE_START;
264 count = (lispobj *)get_alloc_pointer() - headerptr;
266 headerptr = (lispobj *)current_dynamic_space;
267 count = dynamic_space_free_pointer - headerptr;
270 if (search_for_symbol(name, &headerptr, &count)) {
271 *result = make_lispobj(headerptr, OTHER_POINTER_LOWTAG);
279 parse_regnum(char *s)
281 if ((s[1] == 'R') || (s[1] == 'r')) {
287 /* skip the $R part and call atoi on the number */
288 regnum = atoi(s + 2);
289 if ((regnum >= 0) && (regnum < NREGS))
296 for (i = 0; i < NREGS ; i++)
297 if (strcasecmp(s + 1, lisp_register_names[i]) == 0)
298 #ifdef LISP_FEATURE_X86
308 lispobj parse_lispobj(ptr)
311 struct thread *thread=arch_os_get_current_thread();
312 char *token = parse_token(ptr);
318 printf("expected an object\n");
320 } else if (token[0] == '$') {
321 if (isalpha(token[1])) {
324 os_context_t *context;
326 free_ici = fixnum_value(SymbolValue(FREE_INTERRUPT_CONTEXT_INDEX,thread));
329 printf("Variable ``%s'' is not valid -- there is no current interrupt context.\n", token);
333 context = thread->interrupt_contexts[free_ici - 1];
335 regnum = parse_regnum(token);
337 printf("bogus register: ``%s''\n", token);
341 result = *os_context_register_addr(context, regnum);
342 } else if (!lookup_variable(token+1, &result)) {
343 printf("unknown variable: ``%s''\n", token);
346 } else if (token[0] == '@') {
347 if (string_to_long(token+1, &pointer)) {
349 if (is_valid_lisp_addr((os_vm_address_t)pointer))
350 result = *(lispobj *)pointer;
352 printf("invalid Lisp-level address: ``%s''\n", token+1);
357 printf("invalid address: ``%s''\n", token+1);
361 else if (string_to_long(token, &value))
363 else if (lookup_symbol(token, &result))
366 printf("invalid Lisp object: ``%s''\n", token);
373 #endif /* defined(LISP_FEATURE_SB_LDB) */