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Tiny Bootblock, step 1/n.

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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
This commit is contained in:
Patrick Georgi
2009-12-23 12:52:56 +00:00
parent 336daa76fa
commit 9341acda13
12 changed files with 306 additions and 40 deletions
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17
util/cbfstool/cbfs-mkstage.c
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@@ -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 */