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.
22 #if defined(LISP_FEATURE_SB_LDB)
28 #include "interrupt.h"
36 #include "genesis/simple-fun.h"
37 #include "genesis/fdefn.h"
38 #include "genesis/symbol.h"
39 #include "genesis/static-symbols.h"
41 static void skip_ws(char **ptr)
43 while (**ptr <= ' ' && **ptr != '\0')
47 static boolean string_to_long(char *token, long *value)
57 if (token[1] == 'x') {
65 else if (token[0] == '#') {
86 while (*ptr != '\0') {
87 if (*ptr >= 'a' && *ptr <= 'f')
88 digit = *ptr + 10 - 'a';
89 else if (*ptr >= 'A' && *ptr <= 'F')
90 digit = *ptr + 10 - 'A';
91 else if (*ptr >= '0' && *ptr <= '9')
95 if (digit < 0 || digit >= base)
99 num = num * base + digit;
106 static boolean lookup_variable(char *name, lispobj *result)
108 struct var *var = lookup_by_name(name);
113 *result = var_value(var);
130 char *parse_token(ptr)
154 static boolean number_p(token)
162 okay = "abcdefABCDEF987654321d0";
165 if (token[1] == 'x' || token[1] == 'X')
171 else if (token[0] == '#') {
187 while (*token != '\0')
188 if (index(okay, *token++) == NULL)
194 long parse_number(ptr)
197 char *token = parse_token(ptr);
201 printf("expected a number\n");
204 else if (string_to_long(token, &result))
207 printf("invalid number: ``%s''\n", token);
213 char *parse_addr(ptr)
216 char *token = parse_token(ptr);
220 printf("expected an address\n");
223 else if (token[0] == '$') {
224 if (!lookup_variable(token+1, &result)) {
225 printf("unknown variable: ``%s''\n", token);
232 if (!string_to_long(token, &value)) {
233 printf("invalid number: ``%s''\n", token);
236 result = (value & ~3);
239 if (!is_valid_lisp_addr((os_vm_address_t)result)) {
240 printf("invalid Lisp-level address: %p\n", (void *)result);
244 return (char *)result;
247 static boolean lookup_symbol(char *name, lispobj *result)
252 /* Search static space. */
253 headerptr = (lispobj *)STATIC_SPACE_START;
255 (lispobj *)SymbolValue(STATIC_SPACE_FREE_POINTER,0) -
256 (lispobj *)STATIC_SPACE_START;
257 if (search_for_symbol(name, &headerptr, &count)) {
258 *result = make_lispobj(headerptr,OTHER_POINTER_LOWTAG);
262 /* Search dynamic space. */
263 #if defined(LISP_FEATURE_GENCGC)
264 headerptr = (lispobj *)DYNAMIC_SPACE_START;
265 count = (lispobj *)get_alloc_pointer() - headerptr;
267 headerptr = (lispobj *)current_dynamic_space;
268 count = dynamic_space_free_pointer - headerptr;
271 if (search_for_symbol(name, &headerptr, &count)) {
272 *result = make_lispobj(headerptr, OTHER_POINTER_LOWTAG);
280 parse_regnum(char *s)
282 if ((s[1] == 'R') || (s[1] == 'r')) {
288 /* skip the $R part and call atoi on the number */
289 regnum = atoi(s + 2);
290 if ((regnum >= 0) && (regnum < NREGS))
297 for (i = 0; i < NREGS ; i++)
298 if (strcasecmp(s + 1, lisp_register_names[i]) == 0)
299 #ifdef LISP_FEATURE_X86
309 lispobj parse_lispobj(ptr)
312 struct thread *thread=arch_os_get_current_thread();
313 char *token = parse_token(ptr);
319 printf("expected an object\n");
321 } else if (token[0] == '$') {
322 if (isalpha(token[1])) {
325 os_context_t *context;
327 free_ici = fixnum_value(SymbolValue(FREE_INTERRUPT_CONTEXT_INDEX,thread));
330 printf("Variable ``%s'' is not valid -- there is no current interrupt context.\n", token);
334 context = thread->interrupt_contexts[free_ici - 1];
336 regnum = parse_regnum(token);
338 printf("bogus register: ``%s''\n", token);
342 result = *os_context_register_addr(context, regnum);
343 } else if (!lookup_variable(token+1, &result)) {
344 printf("unknown variable: ``%s''\n", token);
347 } else if (token[0] == '@') {
348 if (string_to_long(token+1, &pointer)) {
350 if (is_valid_lisp_addr((os_vm_address_t)pointer))
351 result = *(lispobj *)pointer;
353 printf("invalid Lisp-level address: ``%s''\n", token+1);
358 printf("invalid address: ``%s''\n", token+1);
362 else if (string_to_long(token, &value))
364 else if (lookup_symbol(token, &result))
367 printf("invalid Lisp object: ``%s''\n", token);
374 #endif /* defined(LISP_FEATURE_SB_LDB) */