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author | Kumar Gala <galak@kernel.crashing.org> | 2007-11-28 10:21:12 -0600 |
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committer | Jon Loeliger <jdl@freescale.com> | 2007-12-04 07:26:47 -0600 |
commit | 2b7dc8dce549ad72ad437b254bf756d7ba4c2a5a (patch) | |
tree | 283f79de68c8ce5d2ee125780372eea046e7bcd2 /flattree.c | |
parent | 7c44c2f9cb1cc2df7aacd13decfc4e64b73d1730 (diff) | |
download | dtc-2b7dc8dce549ad72ad437b254bf756d7ba4c2a5a.zip dtc-2b7dc8dce549ad72ad437b254bf756d7ba4c2a5a.tar.gz dtc-2b7dc8dce549ad72ad437b254bf756d7ba4c2a5a.tar.bz2 |
Add an option to pad the blob that is generated
There are times when we need extra space in the blob and just want
to have it added on w/o know the exact size to make it.
The padding and min size options are mutually exclusive.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'flattree.c')
-rw-r--r-- | flattree.c | 20 |
1 files changed, 13 insertions, 7 deletions
@@ -367,7 +367,7 @@ void dt_to_blob(FILE *f, struct boot_info *bi, int version, struct data dtbuf = empty_data; struct data strbuf = empty_data; struct fdt_header fdt; - int padlen; + int padlen = 0; for (i = 0; i < ARRAY_SIZE(version_table); i++) { if (version_table[i].version == version) @@ -388,16 +388,17 @@ void dt_to_blob(FILE *f, struct boot_info *bi, int version, /* * If the user asked for more space than is used, adjust the totalsize. */ - padlen = minsize - be32_to_cpu(fdt.totalsize); - if (padlen > 0) { - fdt.totalsize = cpu_to_be32(minsize); - } else { - if ((minsize > 0) && (quiet < 1)) + if (minsize > 0) { + padlen = minsize - be32_to_cpu(fdt.totalsize); + if ((padlen < 0) && (quiet < 1)) fprintf(stderr, "Warning: blob size %d >= minimum size %d\n", be32_to_cpu(fdt.totalsize), minsize); } + if (padsize > 0) + padlen = padsize; + /* * Assemble the blob: start with the header, add with alignment * the reserve buffer, add the reserve map terminating zeroes, @@ -414,8 +415,10 @@ void dt_to_blob(FILE *f, struct boot_info *bi, int version, * If the user asked for more space than is used, pad out the blob. */ if (padlen > 0) { + int tsize = be32_to_cpu(fdt.totalsize); + tsize += padlen; blob = data_append_zeroes(blob, padlen); - fdt.totalsize = cpu_to_be32(minsize); + fdt.totalsize = cpu_to_be32(tsize); } fwrite(blob.val, blob.len, 1, f); @@ -545,6 +548,9 @@ void dt_to_asm(FILE *f, struct boot_info *bi, int version, int boot_cpuid_phys) fprintf(f, "\t.space\t%d - (_%s_blob_end - _%s_blob_start), 0\n", minsize, symprefix, symprefix); } + if (padsize > 0) { + fprintf(f, "\t.space\t%d, 0\n", padsize); + } emit_label(f, symprefix, "blob_abs_end"); data_free(strbuf); |