The first function is compiled only in case minios is compiled without
newlib, since newlib already provides an implementation for ffs.
On the other hand ffsl and ffsll are always compiled because newlib
misses those functions.
This patch also provides an implementation for __ffsti2 and __ffsdi2
because they are needed by gcc in order to successfully link ffsll.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
We could stub them out as unsupported, but we may as well implement
them as they are very simple.
Signed-off-by: Alex Zeffertt <alex.zeffertt@eu.citrix.com>
net/if.h is a standard header but unfortunately lwip doesn't provide
it for any target but linux. Therefore I am adding a net/if.h, with an
empty implementation of the declared functions.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Adding some missing posix function declarations, to get rid of some
qemu-remote compile time warnings.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
We can decide to make off_t 64bit instead of implementing the LFS
tricks. Name corresponding functions foo64 to permit simple caml
programs linking.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
This adds fixes to the stub domain build into compiling Ian Jackson's
qemu-xen. The most notable change is that mini-os headers now
#include each other through a mini-os/ prefix, so that we can turn all
-I into -isystem and still be sure that we include Mini-OS headers
(and not qemu's console.h or blktaplib's list.h for instance...).
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
- Move PAGE_SIZE and STACK_SIZE into __PAGE_SIZE and __STACK_SIZE in
arch_limits.h so as to permit getting them from there without
pulling all the internal Mini-OS defines.
- Setup a xen-elf cross-compilation environment in stubdom/cross-root
- Add a POSIX layer on top of Mini-OS by linking against the newlib C
library and lwIP, and implementing the Unixish part in mini-os/lib/sys.c
- Cross-compile zlib and libpci too.
- Add an xs.h-compatible layer on top of Mini-OS' xenbus.
- Cross-compile libxc with an additional xc_minios.c and a few things
disabled.
- Cross-compile ioemu with an additional block-vbd, but without sound,
tpm and other details. A few hacks are needed:
- Align ide and scsi buffers at least on sector size to permit
direct transmission to the block backend. While we are at it, just
page-align it to possibly save a segment. Also, limit the scsi
buffer size because of limitations of the block paravirtualization
protocol.
- Allocate big tables dynamically rather that letting them go to
bss: when Mini-OS gets installed in memory, bss is not lazily
allocated, and doing so during Mini-OS is unnecessarily trick while
we can simply use malloc.
- Had to change the Mini-OS compilation somehow, so as to export
Mini-OS compilation flags to the Makefiles of libxc and ioemu.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Keir Fraser