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"
34 #include "genesis/simple-fun.h"
35 #include "genesis/fdefn.h"
36 #include "genesis/symbol.h"
37 #include "genesis/static-symbols.h"
39 static void skip_ws(char **ptr)
41 while (**ptr <= ' ' && **ptr != '\0')
45 static boolean string_to_long(char *token, long *value)
55 if (token[1] == 'x') {
63 else if (token[0] == '#') {
84 while (*ptr != '\0') {
85 if (*ptr >= 'a' && *ptr <= 'f')
86 digit = *ptr + 10 - 'a';
87 else if (*ptr >= 'A' && *ptr <= 'F')
88 digit = *ptr + 10 - 'A';
89 else if (*ptr >= '0' && *ptr <= '9')
93 if (digit < 0 || digit >= base)
97 num = num * base + digit;
104 static boolean lookup_variable(char *name, lispobj *result)
106 struct var *var = lookup_by_name(name);
111 *result = var_value(var);
128 char *parse_token(ptr)
152 static boolean number_p(token)
160 okay = "abcdefABCDEF987654321d0";
163 if (token[1] == 'x' || token[1] == 'X')
169 else if (token[0] == '#') {
185 while (*token != '\0')
186 if (index(okay, *token++) == NULL)
192 long parse_number(ptr)
195 char *token = parse_token(ptr);
199 printf("expected a number\n");
202 else if (string_to_long(token, &result))
205 printf("invalid number: ``%s''\n", token);
211 char *parse_addr(ptr)
214 char *token = parse_token(ptr);
218 printf("expected an address\n");
221 else if (token[0] == '$') {
222 if (!lookup_variable(token+1, (lispobj *)&result)) {
223 printf("unknown variable: ``%s''\n", token);
229 if (!string_to_long(token, &result)) {
230 printf("invalid number: ``%s''\n", token);
236 if (!is_valid_lisp_addr((os_vm_address_t)result)) {
237 printf("invalid Lisp-level address: 0x%lx\n", result);
241 return (char *)result;
244 static boolean lookup_symbol(char *name, lispobj *result)
249 /* Search static space. */
250 headerptr = (lispobj *)STATIC_SPACE_START;
252 (lispobj *)SymbolValue(STATIC_SPACE_FREE_POINTER,0) -
253 (lispobj *)STATIC_SPACE_START;
254 if (search_for_symbol(name, &headerptr, &count)) {
255 *result = make_lispobj(headerptr,OTHER_POINTER_LOWTAG);
259 /* Search dynamic space. */
260 headerptr = (lispobj *)DYNAMIC_SPACE_START;
261 #if !(defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64))
263 dynamic_space_free_pointer -
264 (lispobj *)DYNAMIC_SPACE_START;
267 (lispobj *)SymbolValue(ALLOCATION_POINTER,0) -
268 (lispobj *)DYNAMIC_SPACE_START;
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 $R part and call atoi on the number */
288 regnum = atoi(s + 2);
289 if ((regnum >= 0) && (regnum < NREGS))
296 for (i = 0; i < NREGS ; i++)
297 if (strcasecmp(s + 1, lisp_register_names[i]) == 0)
298 #ifdef LISP_FEATURE_X86
308 lispobj parse_lispobj(ptr)
311 struct thread *thread=arch_os_get_current_thread();
312 char *token = parse_token(ptr);
317 printf("expected an object\n");
319 } else if (token[0] == '$') {
320 if (isalpha(token[1])) {
323 os_context_t *context;
325 free = SymbolValue(FREE_INTERRUPT_CONTEXT_INDEX,thread)>>2;
328 printf("Variable ``%s'' is not valid -- there is no current interrupt context.\n", token);
332 context = thread->interrupt_contexts[free - 1];
334 regnum = parse_regnum(token);
336 printf("bogus register: ``%s''\n", token);
340 result = *os_context_register_addr(context, regnum);
341 } else if (!lookup_variable(token+1, &result)) {
342 printf("unknown variable: ``%s''\n", token);
345 } else if (token[0] == '@') {
346 if (string_to_long(token+1, &pointer)) {
348 if (is_valid_lisp_addr((os_vm_address_t)pointer))
349 result = *(lispobj *)pointer;
351 printf("invalid Lisp-level address: ``%s''\n", token+1);
356 printf("invalid address: ``%s''\n", token+1);
360 else if (string_to_long(token, (long *)&result))
362 else if (lookup_symbol(token, &result))
365 printf("invalid Lisp object: ``%s''\n", token);
372 #endif /* defined(LISP_FEATURE_SB_LDB) */