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authorPatrick Georgi <patrick.georgi@coresystems.de>2009-12-23 12:52:56 +0000
committerPatrick Georgi <patrick.georgi@coresystems.de>2009-12-23 12:52:56 +0000
commit9341acda13aa2e8d8df4f04f80c14ace52f9aa27 (patch)
tree5b65f3604728fcc7a3b0ce061290af9bae0ff14f /util
parent336daa76faa6255cf487100a9741c740802bb32f (diff)
downloadcoreboot-9341acda13aa2e8d8df4f04f80c14ace52f9aa27.tar.xz
Tiny Bootblock, step 1/n.
Introduce the tiny bootblock infrastructure and use it on QEmu. Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de> Acked-by: Myles Watson <mylesgw@gmail.com> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4989 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'util')
-rw-r--r--util/cbfstool/cbfs-mkstage.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/util/cbfstool/cbfs-mkstage.c b/util/cbfstool/cbfs-mkstage.c
index 693d7cc099..6e8daef508 100644
--- a/util/cbfstool/cbfs-mkstage.c
+++ b/util/cbfstool/cbfs-mkstage.c
@@ -122,6 +122,10 @@ int parse_elf_to_stage(unsigned char *input, unsigned char **output,
mem_end = mend;
}
+ if (data_start < *location) {
+ data_start = *location;
+ }
+
/* allocate an intermediate buffer for the data */
buffer = calloc(data_end - data_start, 1);
@@ -133,6 +137,7 @@ int parse_elf_to_stage(unsigned char *input, unsigned char **output,
/* Copy the file data into the buffer */
for (i = 0; i < headers; i++) {
+ unsigned int l_start, l_offset = 0;
if (elf32_to_native(phdr[i].p_type) != PT_LOAD)
continue;
@@ -140,9 +145,15 @@ int parse_elf_to_stage(unsigned char *input, unsigned char **output,
if (elf32_to_native(phdr[i].p_memsz) == 0)
continue;
- memcpy(buffer + (elf32_to_native(phdr[i].p_paddr) - data_start),
- &header[elf32_to_native(phdr[i].p_offset)],
- elf32_to_native(phdr[i].p_filesz));
+ l_start = elf32_to_native(phdr[i].p_paddr);
+ if (l_start < *location) {
+ l_offset = *location - l_start;
+ l_start = *location;
+ }
+
+ memcpy(buffer + (l_start - data_start),
+ &header[elf32_to_native(phdr[i].p_offset)+l_offset],
+ elf32_to_native(phdr[i].p_filesz)-l_offset);
}
/* Now make the output buffer */