Changeset 2753 in kBuild for trunk/src

Timestamp:

Jan 23, 2015 9:46:30 PM (10 years ago)

Author:

bird

Message:

kmk: Save 20+ MB of memory for chopped receipt command lines by freeing them after we're done evaluating a target.

Location:

trunk/src/kmk

Files:

• commands.c (modified) (1 diff)
• commands.h (modified) (1 diff)
• remake.c (modified) (1 diff)

trunk/src/kmk/commands.c

@@ -633 +633 @@
 
 
+#ifdef KMK
+/* This is for saving memory in func_commands. */
+void
+free_chopped_commands (struct commands *cmds)
+{
+  if (cmds && cmds->command_lines != 0)
+    {
+      unsigned idx = cmds->ncommand_lines;
+      while (idx-- > 0)
+        free (cmds->command_lines[idx]);
+      free (cmds->command_lines);
+      free (cmds->lines_flags);
+      cmds->command_lines = NULL;
+      cmds->lines_flags = NULL;
+    }
+}
+
+
+#endif /* CONFIG_WITH_COMMANDS_FUNC */
 /* Execute the commands to remake FILE.  If they are currently executing,
    return or have already finished executing, just return.  Otherwise,

trunk/src/kmk/commands.h

@@ -57 +57 @@
 void delete_child_targets (struct child *child);
 void chop_commands (struct commands *cmds);
+#ifdef KMK
+void free_chopped_commands (struct commands *cmd);
+#endif
 #if defined(CONFIG_WITH_COMMANDS_FUNC) || defined (CONFIG_WITH_DOT_MUST_MAKE)
 void set_file_variables (struct file *file, int called_early);

trunk/src/kmk/remake.c

@@ -1329 +1329 @@
     file->update_status = 0;
 #endif
+
+#ifdef KMK
+    /* We're done with this command, so free the memory held by the chopped
+       command lines. Saves heap for the compilers & linkers. */
+    if (file->cmds && file->cmds->command_lines)
+      free_chopped_commands (file->cmds);
+#endif
 }