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FS#10756 - Free unused init code

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Introduce a new .init section for initialisation code, so that it can be copied to an area which is later overwritten before calling. The stack/bss can then overwrite that code, effectively freeing the code size that the initialisation routines need. Gives a few kB ram usage back.
Only implemented for PP and as3525 so far. More targets could be added, as well as more functions.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25013 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2010-03-03 23:20:32 +00:00
parent e479853f15
commit f8edc32589
33 changed files with 98 additions and 37 deletions
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5
apps/main.c
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@ -127,7 +127,7 @@ static void init(void);
#ifdef SIMULATOR
void app_main(void)
#else
int main(void) __attribute__((noreturn));
int main(void) INIT_ATTR __attribute__((noreturn));
int main(void)
#endif
{
@ -164,6 +164,7 @@ int main(void)
root_menu();
}
static int init_dircache(bool preinit) INIT_ATTR;
static int init_dircache(bool preinit)
{
#ifdef HAVE_DIRCACHE
@ -239,6 +240,7 @@ static int init_dircache(bool preinit)
}
#ifdef HAVE_TAGCACHE
static void init_tagcache(void) INIT_ATTR;
static void init_tagcache(void)
{
bool clear = false;
@ -372,6 +374,7 @@ static void init(void)
#else
static void init(void) INIT_ATTR;
static void init(void)
{
int rc;