arch/tile/include/asm/linkage.h

   1 /*
   2  * Copyright 2010 Tilera Corporation. All Rights Reserved.
   3  *
   4  *   This program is free software; you can redistribute it and/or
   5  *   modify it under the terms of the GNU General Public License
   6  *   as published by the Free Software Foundation, version 2.
   7  *
   8  *   This program is distributed in the hope that it will be useful, but
   9  *   WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  11  *   NON INFRINGEMENT.  See the GNU General Public License for
  12  *   more details.
  13  */
  14
  15 #ifndef _ASM_TILE_LINKAGE_H
  16 #define _ASM_TILE_LINKAGE_H
  17
  18 #include <feedback.h>
  19
  20 #define __ALIGN .align 8
  21
  22 /*
  23  * The STD_ENTRY and STD_ENDPROC macros put the function in a
  24  * self-named .text.foo section, and if linker feedback collection
  25  * is enabled, add a suitable call to the feedback collection code.
  26  * STD_ENTRY_SECTION lets you specify a non-standard section name.
  27  */
  28
  29 #define STD_ENTRY(name) \
  30   .pushsection .text.##name, "ax"; \
  31   ENTRY(name); \
  32   FEEDBACK_ENTER(name)
  33
  34 #define STD_ENTRY_SECTION(name, section) \
  35   .pushsection section, "ax"; \
  36   ENTRY(name); \
  37   FEEDBACK_ENTER_EXPLICIT(name, section, .Lend_##name - name)
  38
  39 #define STD_ENDPROC(name) \
  40   ENDPROC(name); \
  41   .Lend_##name:; \
  42   .popsection
  43
  44 /* Create a file-static function entry set up for feedback gathering. */
  45 #define STD_ENTRY_LOCAL(name) \
  46   .pushsection .text.##name, "ax"; \
  47   ALIGN; \
  48   name:; \
  49   FEEDBACK_ENTER(name)
  50
  51 #endif /* _ASM_TILE_LINKAGE_H */