mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-01 08:59:33 +00:00
common: Move bootm_decomp_image() to image.c (as image_decomp())
Upcoming patches want to add decompression to use cases that are no longer directly related to booting. It makes sense to retain a single decompression routine, but it should no longer be in bootm.c (which is not compiled for all configurations). This patch moves bootm_decomp_image() to image.c and renames it to image_decomp() in preparation of those upcoming patches. Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> [trini: Fix warning around handle_decomp_error being unused] Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Julius Werner
Tom Rini
parent
75551c8bfc
commit
2090854cd2
5 changed files with 162 additions and 157 deletions
140
common/bootm.c
140
common/bootm.c
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@ -7,17 +7,12 @@
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#ifndef USE_HOSTCC
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#include <common.h>
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#include <bootstage.h>
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#include <bzlib.h>
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#include <errno.h>
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#include <fdt_support.h>
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#include <lmb.h>
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#include <malloc.h>
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#include <mapmem.h>
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#include <asm/io.h>
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#include <linux/lzo.h>
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#include <lzma/LzmaTypes.h>
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#include <lzma/LzmaDec.h>
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#include <lzma/LzmaTools.h>
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#if defined(CONFIG_CMD_USB)
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#include <usb.h>
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#endif
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@ -299,23 +294,7 @@ static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc,
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}
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#endif /* USE_HOSTC */
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/**
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* print_decomp_msg() - Print a suitable decompression/loading message
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*
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* @type: OS type (IH_OS_...)
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* @comp_type: Compression type being used (IH_COMP_...)
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* @is_xip: true if the load address matches the image start
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*/
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static void print_decomp_msg(int comp_type, int type, bool is_xip)
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{
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const char *name = genimg_get_type_name(type);
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if (comp_type == IH_COMP_NONE)
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printf(" %s %s ... ", is_xip ? "XIP" : "Loading", name);
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else
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printf(" Uncompressing %s ... ", name);
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}
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#if !defined(USE_HOSTCC) || defined(CONFIG_FIT_SIGNATURE)
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/**
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* handle_decomp_error() - display a decompression error
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*
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@ -325,16 +304,18 @@ static void print_decomp_msg(int comp_type, int type, bool is_xip)
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*
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* @comp_type: Compression type being used (IH_COMP_...)
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* @uncomp_size: Number of bytes uncompressed
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* @unc_len: Amount of space available for decompression
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* @ret: Error code to report
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* @return BOOTM_ERR_RESET, indicating that the board must be reset
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* @ret: errno error code received from compression library
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* @return Appropriate BOOTM_ERR_ error code
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*/
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static int handle_decomp_error(int comp_type, size_t uncomp_size,
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size_t unc_len, int ret)
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static int handle_decomp_error(int comp_type, size_t uncomp_size, int ret)
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{
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const char *name = genimg_get_comp_name(comp_type);
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if (uncomp_size >= unc_len)
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/* ENOSYS means unimplemented compression type, don't reset. */
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if (ret == -ENOSYS)
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return BOOTM_ERR_UNIMPLEMENTED;
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if (uncomp_size >= CONFIG_SYS_BOOTM_LEN)
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printf("Image too large: increase CONFIG_SYS_BOOTM_LEN\n");
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else
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printf("%s: uncompress error %d\n", name, ret);
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@ -351,93 +332,7 @@ static int handle_decomp_error(int comp_type, size_t uncomp_size,
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return BOOTM_ERR_RESET;
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}
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int bootm_decomp_image(int comp, ulong load, ulong image_start, int type,
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void *load_buf, void *image_buf, ulong image_len,
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uint unc_len, ulong *load_end)
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{
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int ret = 0;
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*load_end = load;
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print_decomp_msg(comp, type, load == image_start);
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/*
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* Load the image to the right place, decompressing if needed. After
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* this, image_len will be set to the number of uncompressed bytes
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* loaded, ret will be non-zero on error.
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*/
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switch (comp) {
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case IH_COMP_NONE:
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if (load == image_start)
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break;
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if (image_len <= unc_len)
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memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
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else
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ret = 1;
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break;
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#ifdef CONFIG_GZIP
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case IH_COMP_GZIP: {
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ret = gunzip(load_buf, unc_len, image_buf, &image_len);
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break;
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}
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#endif /* CONFIG_GZIP */
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#ifdef CONFIG_BZIP2
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case IH_COMP_BZIP2: {
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uint size = unc_len;
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/*
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* If we've got less than 4 MB of malloc() space,
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* use slower decompression algorithm which requires
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* at most 2300 KB of memory.
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*/
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ret = BZ2_bzBuffToBuffDecompress(load_buf, &size,
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image_buf, image_len,
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CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
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image_len = size;
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break;
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}
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#endif /* CONFIG_BZIP2 */
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#ifdef CONFIG_LZMA
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case IH_COMP_LZMA: {
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SizeT lzma_len = unc_len;
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ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
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image_buf, image_len);
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image_len = lzma_len;
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break;
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}
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#endif /* CONFIG_LZMA */
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#ifdef CONFIG_LZO
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case IH_COMP_LZO: {
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size_t size = unc_len;
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ret = lzop_decompress(image_buf, image_len, load_buf, &size);
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image_len = size;
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break;
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}
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#endif /* CONFIG_LZO */
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#ifdef CONFIG_LZ4
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case IH_COMP_LZ4: {
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size_t size = unc_len;
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ret = ulz4fn(image_buf, image_len, load_buf, &size);
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image_len = size;
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break;
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}
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#endif /* CONFIG_LZ4 */
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default:
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printf("Unimplemented compression type %d\n", comp);
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return BOOTM_ERR_UNIMPLEMENTED;
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}
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if (ret)
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return handle_decomp_error(comp, image_len, unc_len, ret);
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*load_end = load + image_len;
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puts("OK\n");
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return 0;
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}
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#endif
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#ifndef USE_HOSTCC
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static int bootm_load_os(bootm_headers_t *images, int boot_progress)
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@ -456,10 +351,11 @@ static int bootm_load_os(bootm_headers_t *images, int boot_progress)
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load_buf = map_sysmem(load, 0);
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image_buf = map_sysmem(os.image_start, image_len);
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err = bootm_decomp_image(os.comp, load, os.image_start, os.type,
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err = image_decomp(os.comp, load, os.image_start, os.type,
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load_buf, image_buf, image_len,
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CONFIG_SYS_BOOTM_LEN, &load_end);
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if (err) {
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err = handle_decomp_error(os.comp, load_end - load, err);
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bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
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return err;
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}
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@ -919,11 +815,6 @@ void __weak switch_to_non_secure_mode(void)
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#else /* USE_HOSTCC */
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void memmove_wd(void *to, void *from, size_t len, ulong chunksz)
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{
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memmove(to, from, len);
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}
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#if defined(CONFIG_FIT_SIGNATURE)
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static int bootm_host_load_image(const void *fit, int req_image_type)
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{
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@ -957,13 +848,16 @@ static int bootm_host_load_image(const void *fit, int req_image_type)
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/* Allow the image to expand by a factor of 4, should be safe */
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load_buf = malloc((1 << 20) + len * 4);
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ret = bootm_decomp_image(imape_comp, 0, data, image_type, load_buf,
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ret = image_decomp(imape_comp, 0, data, image_type, load_buf,
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(void *)data, len, CONFIG_SYS_BOOTM_LEN,
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&load_end);
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free(load_buf);
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if (ret && ret != BOOTM_ERR_UNIMPLEMENTED)
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if (ret) {
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ret = handle_decomp_error(imape_comp, load_end - 0, ret);
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if (ret != BOOTM_ERR_UNIMPLEMENTED)
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return ret;
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}
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return 0;
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}
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111
common/image.c
111
common/image.c
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@ -32,6 +32,12 @@
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#include <linux/errno.h>
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#include <asm/io.h>
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#include <bzlib.h>
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#include <linux/lzo.h>
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#include <lzma/LzmaTypes.h>
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#include <lzma/LzmaDec.h>
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#include <lzma/LzmaTools.h>
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#ifdef CONFIG_CMD_BDI
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extern int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
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#endif
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@ -375,6 +381,106 @@ void image_print_contents(const void *ptr)
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}
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}
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/**
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* print_decomp_msg() - Print a suitable decompression/loading message
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*
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* @type: OS type (IH_OS_...)
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* @comp_type: Compression type being used (IH_COMP_...)
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* @is_xip: true if the load address matches the image start
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*/
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static void print_decomp_msg(int comp_type, int type, bool is_xip)
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{
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const char *name = genimg_get_type_name(type);
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if (comp_type == IH_COMP_NONE)
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printf(" %s %s\n", is_xip ? "XIP" : "Loading", name);
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else
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printf(" Uncompressing %s\n", name);
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}
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int image_decomp(int comp, ulong load, ulong image_start, int type,
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void *load_buf, void *image_buf, ulong image_len,
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uint unc_len, ulong *load_end)
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{
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int ret = 0;
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*load_end = load;
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print_decomp_msg(comp, type, load == image_start);
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/*
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* Load the image to the right place, decompressing if needed. After
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* this, image_len will be set to the number of uncompressed bytes
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* loaded, ret will be non-zero on error.
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*/
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switch (comp) {
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case IH_COMP_NONE:
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if (load == image_start)
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break;
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if (image_len <= unc_len)
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memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
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else
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ret = -ENOSPC;
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break;
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#ifdef CONFIG_GZIP
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case IH_COMP_GZIP: {
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ret = gunzip(load_buf, unc_len, image_buf, &image_len);
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break;
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}
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#endif /* CONFIG_GZIP */
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#ifdef CONFIG_BZIP2
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case IH_COMP_BZIP2: {
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uint size = unc_len;
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/*
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* If we've got less than 4 MB of malloc() space,
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* use slower decompression algorithm which requires
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* at most 2300 KB of memory.
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*/
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ret = BZ2_bzBuffToBuffDecompress(load_buf, &size,
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image_buf, image_len,
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CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
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image_len = size;
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break;
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}
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#endif /* CONFIG_BZIP2 */
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#ifdef CONFIG_LZMA
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case IH_COMP_LZMA: {
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SizeT lzma_len = unc_len;
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ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
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image_buf, image_len);
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image_len = lzma_len;
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break;
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}
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#endif /* CONFIG_LZMA */
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#ifdef CONFIG_LZO
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case IH_COMP_LZO: {
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size_t size = unc_len;
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ret = lzop_decompress(image_buf, image_len, load_buf, &size);
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image_len = size;
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break;
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}
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#endif /* CONFIG_LZO */
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#ifdef CONFIG_LZ4
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case IH_COMP_LZ4: {
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size_t size = unc_len;
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ret = ulz4fn(image_buf, image_len, load_buf, &size);
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image_len = size;
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break;
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}
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#endif /* CONFIG_LZ4 */
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default:
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printf("Unimplemented compression type %d\n", comp);
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return -ENOSYS;
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}
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*load_end = load + image_len;
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return ret;
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}
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#ifndef USE_HOSTCC
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#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
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@ -551,6 +657,11 @@ void memmove_wd(void *to, void *from, size_t len, ulong chunksz)
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memmove(to, from, len);
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#endif /* CONFIG_HW_WATCHDOG || CONFIG_WATCHDOG */
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}
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#else /* USE_HOSTCC */
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void memmove_wd(void *to, void *from, size_t len, ulong chunksz)
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{
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memmove(to, from, len);
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}
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#endif /* !USE_HOSTCC */
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void genimg_print_size(uint32_t size)
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@ -59,23 +59,6 @@ int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
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void arch_preboot_os(void);
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/**
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* bootm_decomp_image() - decompress the operating system
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*
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* @comp: Compression algorithm that is used (IH_COMP_...)
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* @load: Destination load address in U-Boot memory
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* @image_start Image start address (where we are decompressing from)
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* @type: OS type (IH_OS_...)
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* @load_bug: Place to decompress to
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* @image_buf: Address to decompress from
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* @image_len: Number of bytes in @image_buf to decompress
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* @unc_len: Available space for decompression
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* @return 0 if OK, -ve on error (BOOTM_ERR_...)
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*/
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int bootm_decomp_image(int comp, ulong load, ulong image_start, int type,
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void *load_buf, void *image_buf, ulong image_len,
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uint unc_len, ulong *load_end);
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/*
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* boards should define this to disable devices when EFI exits from boot
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* services.
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@ -849,6 +849,23 @@ static inline int image_check_target_arch(const image_header_t *hdr)
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}
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#endif /* USE_HOSTCC */
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/**
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* image_decomp() - decompress an image
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*
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* @comp: Compression algorithm that is used (IH_COMP_...)
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* @load: Destination load address in U-Boot memory
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* @image_start Image start address (where we are decompressing from)
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* @type: OS type (IH_OS_...)
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* @load_bug: Place to decompress to
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* @image_buf: Address to decompress from
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* @image_len: Number of bytes in @image_buf to decompress
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* @unc_len: Available space for decompression
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* @return 0 if OK, -ve on error (BOOTM_ERR_...)
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*/
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int image_decomp(int comp, ulong load, ulong image_start, int type,
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void *load_buf, void *image_buf, ulong image_len,
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uint unc_len, ulong *load_end);
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/**
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* Set up properties in the FDT
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*
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@ -471,12 +471,12 @@ static int run_bootm_test(struct unit_test_state *uts, int comp_type,
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unc_len = strlen(plain);
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compress(uts, (void *)plain, unc_len, compress_buff, compress_size,
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&compress_size);
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err = bootm_decomp_image(comp_type, load_addr, image_start,
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err = image_decomp(comp_type, load_addr, image_start,
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IH_TYPE_KERNEL, map_sysmem(load_addr, 0),
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compress_buff, compress_size, unc_len,
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&load_end);
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ut_assertok(err);
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err = bootm_decomp_image(comp_type, load_addr, image_start,
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err = image_decomp(comp_type, load_addr, image_start,
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IH_TYPE_KERNEL, map_sysmem(load_addr, 0),
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compress_buff, compress_size, unc_len - 1,
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&load_end);
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@ -487,7 +487,7 @@ static int run_bootm_test(struct unit_test_state *uts, int comp_type,
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return 0;
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memset(compress_buff + compress_size / 2, '\x49',
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compress_size / 2);
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err = bootm_decomp_image(comp_type, load_addr, image_start,
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err = image_decomp(comp_type, load_addr, image_start,
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IH_TYPE_KERNEL, map_sysmem(load_addr, 0),
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compress_buff, compress_size, 0x10000,
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&load_end);
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