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Add a few warning comments about the INIT_ATTR stuff.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25024 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2010-03-04 17:44:57 +00:00
parent 2ac962aceb
commit a62eced78a
2 changed files with 16 additions and 0 deletions
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10
firmware/export/config.h
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@ -748,6 +748,16 @@ Lyre prototype 1 */
#define STATICIRAM static
#endif
#if (defined(CPU_PP) || (CONFIG_CPU == AS3525)) && !defined(SIMULATOR) && !defined(BOOTLOADER)
/* Functions that have INIT_ATTR attached are NOT guaranteed to survive after
* root_menu() has been called. Their code may be overwritten by other data or
* code in order to save RAM, and references to them might point into
* zombie area.
*
* It is critical that you make sure these functions are only called before
* the final call to root_menu() (see apps/main.c) is called (i.e. basically
* only while main() runs), otherwise things may go wild,
* from crashes to freezes to exploding daps.
*/
#define INIT_ATTR __attribute__ ((section(".init")))
#define HAVE_INIT_ATTR
#else