fast replace if src outside

1 files changed, 21 insertions, 29 deletions

diff --git a/scripts/bb_mkdep.c b/scripts/bb_mkdep.c
index 0a2054c03..76db960fd 100644
--- a/scripts/bb_mkdep.c
+++ b/scripts/bb_mkdep.c
@@ -1,5 +1,5 @@
 /*
- * Another fast dependencies generator for Makefiles, Version 2.4
+ * Another fast dependencies generator for Makefiles, Version 2.5
  *
  * Copyright (C) 2005 by Vladimir Oleynik <dzo@simtreas.ru>
  * mmaping file may be originally by Linus Torvalds.
@@ -97,7 +97,11 @@ static void parse_conf_opt(const char *opt, const char *val,
 static char first_chars[257];  /* + L_EOF */
 static char isalnums[257];     /* + L_EOF */
 /* trick for fast find "define", "include", "undef" */
-static char first_chars_diu[256];
+static char first_chars_diu[256] = {
+        [(int)'d'] = (char)5,           /* strlen("define") - 1;  */
+        [(int)'i'] = (char)6,           /* strlen("include") - 1; */
+        [(int)'u'] = (char)4,           /* strlen("undef") - 1;   */
+};
 
 static int pagesizem1;
 static size_t mema_id = 128;   /* first allocated for id */
@@ -136,7 +140,6 @@ static char *id_s;
                             id[id_len++] = c; } while(0)
 
 
-
 /* stupid C lexical analyser */
 static void c_lex(const char *fname, long fsize)
 {
@@ -605,14 +608,19 @@ static void parse_conf_opt(const char *opt, const char *val,
         }
 }
 
-static int show_dep(int first, bb_key_t *k, const char *name)
+static char *pwd;
+
+static int show_dep(int first, bb_key_t *k, const char *name, const char *f)
 {
     bb_key_t *cur;
 
     for(cur = k; cur; cur = cur->next) {
         if(cur->checked) {
             if(first) {
-                printf("\n%s:", name);
+                if(f == NULL)
+                        printf("\n%s:", name);
+                else
+                        printf("\n%s/%s:", pwd, name);
                 first = 0;
             } else {
                 printf(" \\\n  ");
@@ -624,8 +632,7 @@ static int show_dep(int first, bb_key_t *k, const char *name)
     return first;
 }
 
-static char *pwd;
-static char *replace;
+static size_t replace;
 
 static struct stat st_kp;
 static int dontgenerate_dep;
@@ -673,23 +680,17 @@ parse_chd(const char *fe, const char *p, size_t dirlen)
             if(*e == 'c') {
                 /* *.c -> *.o */
                 *e = 'o';
-                if(replace) {
-                        /* /src_dir/path/file.o to path/file.o */
-                        e = fp + strlen(replace);
-                        while(*e == '/')
-                                e++;
-                        /* path/file.o to pwd/path/file.o */
-                        e = fp = bb_asprint("%s/%s", pwd, e);
-                }
+                /* /src_dir/path/file.o to path/file.o */
+                fp += replace;
+                if(*fp == '/')
+                        fp++;
             } else {
                 e = NULL;
             }
-            first = show_dep(1, Ifound, fp);
-            first = show_dep(first, key_top, fp);
+            first = show_dep(1, Ifound, fp, e);
+            first = show_dep(first, key_top, fp, e);
             if(first == 0)
                 putchar('\n');
-            if(replace && e)
-                free(e);
         }
         return NULL;
     } else if(S_ISDIR(st.st_mode)) {
@@ -726,10 +727,7 @@ static void scan_dir_find_ch_files(const char *p)
     size_t dirlen;
 
     dirs = llist_add_to(NULL, bb_simplify_path(p));
-    if(strcmp(dirs->data, pwd))
-        replace = bb_xstrdup(dirs->data);
-    else
-        replace = NULL;
+    replace = strlen(dirs->data);
     /* emulate recursive */
     while(dirs) {
         d_add = NULL;
@@ -755,8 +753,6 @@ static void scan_dir_find_ch_files(const char *p)
         }
         dirs = d_add;
     }
-    free(replace);
-    replace = NULL;
 }
 
 
@@ -832,10 +828,6 @@ int main(int argc, char **argv)
                 first_chars[i] = ANY;
         }
         first_chars[i] = '-';   /* L_EOF */
-        /* trick for fast find "define", "include", "undef" */
-        first_chars_diu[(int)'d'] = (char)5;    /* strlen("define") - 1;  */
-        first_chars_diu[(int)'i'] = (char)6;    /* strlen("include") - 1; */
-        first_chars_diu[(int)'u'] = (char)4;    /* strlen("undef") - 1;   */
 
         /* parse configs */
         for(fl = configs; fl; fl = fl->link) {