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| author | Thomas Martitz <kugel@rockbox.org> | 2010-08-27 00:29:50 +0000 |
|---|---|---|
| committer | Thomas Martitz <kugel@rockbox.org> | 2010-08-27 00:29:50 +0000 |
| commit | 194174a371b16dfc24960d1e33371c0a7ef1c2c2 (patch) | |
| tree | b924bf74a96bb7dedcaebb45319569c003d81e8b /apps/plugins | |
| parent | 97d2a6ec5ca8ace8daed29c8c69aab9595147b3a (diff) | |
| download | rockbox-194174a371b16dfc24960d1e33371c0a7ef1c2c2.zip rockbox-194174a371b16dfc24960d1e33371c0a7ef1c2c2.tar.gz rockbox-194174a371b16dfc24960d1e33371c0a7ef1c2c2.tar.bz2 rockbox-194174a371b16dfc24960d1e33371c0a7ef1c2c2.tar.xz | |
2nd try: Introduce a small api for loading code (codecs,plugins) from disk/memory.
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.
Apparently sh needs linker symbols prefixed with _ even if they're referenced without from C code.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27902 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/plugins')
| -rw-r--r-- | apps/plugins/plugin.lds | 1 | ||||
| -rw-r--r-- | apps/plugins/plugin_crt0.c | 6 |
2 files changed, 7 insertions, 0 deletions
diff --git a/apps/plugins/plugin.lds b/apps/plugins/plugin.lds index f150b9d..653b8ba 100644 --- a/apps/plugins/plugin.lds +++ b/apps/plugins/plugin.lds @@ -278,6 +278,7 @@ SECTIONS .bss (NOLOAD) : { plugin_bss_start = .; + _plugin_bss_start = .; *(.bss*) #if defined(IRAMSIZE) && IRAMSIZE == 0 *(.ibss) diff --git a/apps/plugins/plugin_crt0.c b/apps/plugins/plugin_crt0.c index 536ecca..e34124c 100644 --- a/apps/plugins/plugin_crt0.c +++ b/apps/plugins/plugin_crt0.c @@ -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) |