| Commit message (Collapse) | Author | Age | Files | Lines |
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I'm seeing pvgrub crashing when running CTORs. It appears its because
the magic in the linker script is generating junk. If I get ld to
output a map, I see:
.ctors 0x0000000000097000 0x18
0x0000000000097000 __CTOR_LIST__ = .
0x0000000000097000 0x4 LONG 0x25c04
(((__CTOR_END__ - __CTOR_LIST__) / 0x4) - 0x2)
*(.ctors)
.ctors 0x0000000000097004 0x10
/home/jeremy/hg/xen/unstable/stubdom/mini-os-x86_32-grub/mini-os.o
0x0000000000097014 0x4 LONG 0x0
0x0000000000097018 __CTOR_END__ = .
In other words, somehow ((0x97018-0x97000) / 4) - 2 = 0x25c04
The specific crash is that the ctor loop tries to call the NULL
sentinel. I'm seeing the same with the DTOR list.
Avoid this by terminating the loop with the NULL sentinel, and get rid
of the CTOR count entirely.
From: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Keir Fraser <keir@xen.org>
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Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
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Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
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Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
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markers at its beginning and end, and then link with mini-os.
That permits to stick a bit more to upstream qemu.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
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- 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>
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Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
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linker script.
Signed-off-by: Keir Fraser <keir@xensource.com>
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Signed-off-by: Dietmar Hahn <dietmar.hahn@fujitsu-siemens.com>
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