firmware: make lc_open_from_mem() optional

commit e6e56ceb51c385530194bc25a93ecf4c33ada433
Author: Aidan MacDonald <[email protected]>
Date:   Sun Jan 4 14:21:43 2026 +0000

    firmware: make lc_open_from_mem() optional
    
    Define HAVE_LC_OPEN_FROM_MEM if the target implements
    lc_open_from_mem(). Make HAVE_CODEC_BUFFERING depend
    on this feature.
    
    Change-Id: If5f70db58963dcdc33848b860c028841ac380ab2

diff --git a/firmware/export/config.h b/firmware/export/config.h
index 65bf9c164f..f9a2ca26ea 100644
--- a/firmware/export/config.h
+++ b/firmware/export/config.h
@@ -689,8 +689,12 @@ Lyre prototype 1 */
 # endif
 #endif
 
+#if CONFIG_BINFMT == BINFMT_ROCK
+# define HAVE_LC_OPEN_FROM_MEM
+#endif
+
 /* Codec buffering requires the ability to load code from RAM */
-#if CONFIG_PLATFORM & PLATFORM_NATIVE
+#if defined(HAVE_LC_OPEN_FROM_MEM)
 # define HAVE_CODEC_BUFFERING
 #endif
 
diff --git a/firmware/export/lc-dlopen.h b/firmware/export/lc-dlopen.h
index c92ffce4ce..ef3b88d2a0 100644
--- a/firmware/export/lc-dlopen.h
+++ b/firmware/export/lc-dlopen.h
@@ -27,15 +27,4 @@ void *lc_open(const char *filename, unsigned char *buf, size_t buf_size);
 void *lc_get_header(void *handle);
 void  lc_close(void *handle);
 
-#ifdef APPLICATION
-/* App doesn't simulate code loading from a buffer */
-static inline void * lc_open_from_mem(void *addr, size_t blob_size)
-{
-    return NULL;
-    (void)addr; (void)blob_size;
-}
-#else
-void *lc_open_from_mem(void* addr, size_t blob_size);
-#endif
-
 #endif /* __LC_DLOPEN_H__ */
diff --git a/firmware/export/lc-rock.h b/firmware/export/lc-rock.h
index bd4101cb03..43fd815f3a 100644
--- a/firmware/export/lc-rock.h
+++ b/firmware/export/lc-rock.h
@@ -25,6 +25,7 @@
 
 void *lc_open(const char *filename, unsigned char *buf, size_t buf_size);
 
+#if defined(HAVE_LC_OPEN_FROM_MEM)
 /* header is always at the beginning of the blob, and handle actually points
  * to the start of the blob (the header is there) */
 static inline void *lc_open_from_mem(void* addr, size_t blob_size)
@@ -34,6 +35,7 @@ static inline void *lc_open_from_mem(void* addr, size_t blob_size)
     commit_discard_idcache();
     return addr;
 }
+#endif /* HAVE_LC_OPEN_FROM_MEM */
 
 static inline void *lc_get_header(void *handle)
 {
-- 
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