SIRF : The Simple Immutable Record Format
SIRF is a format I created so that I could easily package multiple files
together in a way that would make it easy to wrap them in some metadata and
link the raw data into a kernel boot image. It's similar to a key-value store
in that "records" have a name and contents. There is no file hierarchy and no
file permissions, but it serves a similar purpose to initrd and the records
are supposed to be named with POSIX paths.
mksirf.py
mksirf.py is a small script that converts a file directory into a SIRF
archive. It is named the same as the directory name, but with the .sird
extension atteched onto the end.
embedbin.sh
A shell script to turn arbitrary files (in this case, sirf data) into object files that can be referenced by C code. It's a little bit strange, but it's actually rather simple.
Let's say you have a file called "foo.sird". This generates an ELF object that exports the following symbols:
foo- Beginning of foo data.foo_end- 0 byte appended to foo data.foo_size- Length of foo data in an unsigned 32-bit integer.
You can reference these symbols from C code by putting these statements somewhere in your C code, probably in a header somewhere.
extern uint8_t foo; // char or unsigned char also work, depending on your data
extern uint8_t foo_end; // Should always be 0, but here for reasons.
extern uint32_t foo_size;