Changeset a363016 in mainline

Timestamp:

2016-03-08T09:40:48Z (8 years ago)

Author:

Aurelio Colosimo <aurelio@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

e8d48d2

Parents:

6a75c134

Message:

kconsole tab completion: call* argument hints restored by using proper callback

Location:

kernel/generic

Files:

• include/symtab.h (modified) (1 diff)
• src/console/cmd.c (modified) (5 diffs)
• src/debug/symtab.c (modified) (1 diff)

kernel/generic/include/symtab.h

@@ -40 +40 @@
 
 extern void symtab_print_search(const char *);
-extern int symtab_compl(char *, size_t, indev_t *);
+extern const char* symtab_hints_enum(const char *, const char **, void **);
 
 #endif

kernel/generic/src/console/cmd.c

@@ -303 +303 @@
         .func = cmd_call0,
         .argc = 1,
-        .argv = &call0_argv
+        .argv = &call0_argv,
+        .hints_enum = symtab_hints_enum
 };
 
@@ -318 +319 @@
         .func = cmd_mcall0,
         .argc = 1,
-        .argv = &mcall0_argv
+        .argv = &mcall0_argv,
+        .hints_enum = symtab_hints_enum
 };
 
@@ -340 +342 @@
         .func = cmd_call1,
         .argc = 2,
-        .argv = call1_argv
+        .argv = call1_argv,
+        .hints_enum = symtab_hints_enum
 };
 
@@ -367 +370 @@
         .func = cmd_call2,
         .argc = 3,
-        .argv = call2_argv
+        .argv = call2_argv,
+        .hints_enum = symtab_hints_enum
 };
 
@@ -400 +404 @@
         .func = cmd_call3,
         .argc = 4,
-        .argv = call3_argv
+        .argv = call3_argv,
+        .hints_enum = symtab_hints_enum
 };
 

kernel/generic/src/debug/symtab.c

@@ -202 +202 @@
 }
 
-/** Symtab completion
- *
- * @param input Search string, completes to symbol name
- * @param size  Input buffer size
- *
- * @return 0 - nothing found, 1 - success, >1 print duplicates
- *
- */
-int symtab_compl(char *input, size_t size, indev_t *indev)
-{
-#ifdef CONFIG_SYMTAB
-        const char *name = input;
-        
-        /* Allow completion of pointers */
-        if ((name[0] == '*') || (name[0] == '&'))
-                name++;
-        
-        /* Do not print all symbols */
-        if (str_length(name) == 0)
-                return 0;
-        
-        size_t found = 0;
-        size_t pos = 0;
-        const char *hint;
-        char output[MAX_SYMBOL_NAME];
-        
-        /*
-         * Maximum Match Length: Length of longest matching common substring in
-         * case more than one match is found.
-         */
-        size_t max_match_len = size;
-        size_t max_match_len_tmp = size;
-        size_t input_len = str_length(input);
-        char *sym_name;
-        size_t hints_to_show = MAX_TAB_HINTS - 1;
-        size_t total_hints_shown = 0;
-        bool continue_showing_hints = true;
-        
-        output[0] = 0;
-        
-        while ((hint = symtab_search_one(name, &pos)))
-                pos++;
-        
-        pos = 0;
-        
-        while ((hint = symtab_search_one(name, &pos))) {
-                if ((found == 0) || (str_length(output) > str_length(hint)))
-                        str_cpy(output, MAX_SYMBOL_NAME, hint);
-                
-                pos++;
-                found++;
-        }
-        
-        /*
-         * If the number of possible completions is more than MAX_TAB_HINTS,
-         * ask the user whether to display them or not.
-         */
-        if (found > MAX_TAB_HINTS) {
-                printf("\n");
-                continue_showing_hints =
-                    console_prompt_display_all_hints(indev, found);
-        }
-        
-        if ((found > 1) && (str_length(output) != 0)) {
-                printf("\n");
-                pos = 0;
-                while (symtab_search_one(name, &pos)) {
-                        sym_name = symbol_table[pos].symbol_name;
-                        pos++;
-                        
-                        if (continue_showing_hints) {
-                                /* We are still showing hints */
-                                printf("%s\n", sym_name);
-                                --hints_to_show;
-                                ++total_hints_shown;
-                                
-                                if ((hints_to_show == 0) && (total_hints_shown != found)) {
-                                        /* Ask the user to continue */
-                                        continue_showing_hints =
-                                            console_prompt_more_hints(indev, &hints_to_show);
-                                }
-                        }
-                        
-                        for (max_match_len_tmp = 0;
-                            (output[max_match_len_tmp] ==
-                            sym_name[input_len + max_match_len_tmp]) &&
-                            (max_match_len_tmp < max_match_len); ++max_match_len_tmp);
-                        
-                        max_match_len = max_match_len_tmp;
+/** Symtab completion enum, see kernel/generic/include/kconsole.h */
+const char* symtab_hints_enum(const char *input, const char **help,
+    void **ctx)
+{
+#ifdef CONFIG_SYMTAB
+        size_t len = str_length(input);
+        struct symtab_entry **entry = (struct symtab_entry**)ctx;
+        
+        if (*entry == NULL)
+                *entry = symbol_table;
+        
+        for (; (*entry)->address_le; (*entry)++) {
+                const char *curname = (*entry)->symbol_name;
+                
+                /* Find a ':' in curname */
+                const char *colon = str_chr(curname, ':');
+                if (colon == NULL)
+                        continue;
+                
+                if (str_length(curname) < len)
+                        continue;
+                
+                if (str_lcmp(input, curname, len) == 0) {
+                        (*entry)++;
+                        if (help)
+                                *help = NULL;
+                        return (curname + str_lsize(curname, len));
                 }
-                
-                /* Keep only the characters common in all completions */
-                output[max_match_len] = 0;
-        }
-        
-        if (found > 0)
-                str_cpy(input, size, output);
-        
-        return found;
-        
-#else
-        return 0;
+        }
+        
+        return NULL;
+        
+#else
+        return NULL;
 #endif
 }