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Introduce a small api for loading code (codecs,plugins) from disk/memory.

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It's a used by codec/plugin loading and vastly reduces code duplication. It's also a step forward in getting rid of libuisimulator in the application ports.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27900 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2010-08-26 23:20:02 +00:00
parent 55dc25fe72
commit 73f057be6f
7 changed files with 312 additions and 239 deletions
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6
apps/plugins/plugin_crt0.c
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@ -32,6 +32,8 @@ PLUGIN_HEADER
#define EXIT_MAGIC 0x0CDEBABE
extern enum plugin_status plugin_start(const void*);
extern unsigned char plugin_bss_start[];
extern unsigned char plugin_end_addr[];
static jmp_buf __exit_env;
/* only 1 atexit handler for now, chain in the exit handler if you need more */
@ -61,6 +63,10 @@ enum plugin_status plugin__start(const void *param)
int exit_ret;
enum plugin_status ret;
/* zero out the bss section */
#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
rb->memset(plugin_bss_start, 0, plugin_end_addr - plugin_bss_start);
#endif
/* we come back here if exit() was called or the plugin returned normally */
exit_ret = setjmp(__exit_env);
if (exit_ret == 0)