bootm: Export bootm_decomp_image()
Export this function for testing. Also add a parameter so that values other
than CONFIG_SYS_BOOTM_LEN can be used for the maximum uncompressed size.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/bootm.c b/common/bootm.c
index 915d537..10c15ef 100644
--- a/common/bootm.c
+++ b/common/bootm.c
@@ -289,23 +289,11 @@
}
#endif
-/**
- * decomp_image() - decompress the operating system
- *
- * @comp: Compression algorithm that is used (IH_COMP_...)
- * @load: Destination load address in U-Boot memory
- * @image_start Image start address (where we are decompressing from)
- * @type: OS type (IH_OS_...)
- * @load_bug: Place to decompress to
- * @image_buf: Address to decompress from
- * @return 0 if OK, -ve on error (BOOTM_ERR_...)
- */
-static int decomp_image(int comp, ulong load, ulong image_start, int type,
- void *load_buf, void *image_buf, ulong image_len,
- ulong *load_end)
+int bootm_decomp_image(int comp, ulong load, ulong image_start, int type,
+ void *load_buf, void *image_buf, ulong image_len,
+ uint unc_len, ulong *load_end)
{
const char *type_name = genimg_get_type_name(type);
- __attribute__((unused)) uint unc_len = CONFIG_SYS_BOOTM_LEN;
*load_end = load;
switch (comp) {
@@ -413,8 +401,9 @@
load_buf = map_sysmem(load, 0);
image_buf = map_sysmem(os.image_start, image_len);
- err = decomp_image(os.comp, load, os.image_start, os.type, load_buf,
- image_buf, image_len, load_end);
+ err = bootm_decomp_image(os.comp, load, os.image_start, os.type,
+ load_buf, image_buf, image_len,
+ CONFIG_SYS_BOOTM_LEN, load_end);
if (err) {
bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
return err;
@@ -905,9 +894,11 @@
/* Allow the image to expand by a factor of 4, should be safe */
load_buf = malloc((1 << 20) + len * 4);
- ret = decomp_image(imape_comp, 0, data, image_type, load_buf,
- (void *)data, len, &load_end);
+ ret = bootm_decomp_image(imape_comp, 0, data, image_type, load_buf,
+ (void *)data, len, CONFIG_SYS_BOOTM_LEN,
+ &load_end);
free(load_buf);
+
if (ret && ret != BOOTM_ERR_UNIMPLEMENTED)
return ret;
diff --git a/include/bootm.h b/include/bootm.h
index b3d1a62..6181488 100644
--- a/include/bootm.h
+++ b/include/bootm.h
@@ -56,4 +56,21 @@
void arch_preboot_os(void);
+/**
+ * bootm_decomp_image() - decompress the operating system
+ *
+ * @comp: Compression algorithm that is used (IH_COMP_...)
+ * @load: Destination load address in U-Boot memory
+ * @image_start Image start address (where we are decompressing from)
+ * @type: OS type (IH_OS_...)
+ * @load_bug: Place to decompress to
+ * @image_buf: Address to decompress from
+ * @image_len: Number of bytes in @image_buf to decompress
+ * @unc_len: Available space for decompression
+ * @return 0 if OK, -ve on error (BOOTM_ERR_...)
+ */
+int bootm_decomp_image(int comp, ulong load, ulong image_start, int type,
+ void *load_buf, void *image_buf, ulong image_len,
+ uint unc_len, ulong *load_end);
+
#endif