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Re: [Xen-devel] [PATCH VTPM v8 0/8] Vtpm patch set



On 10/01/13 15:30, Ian Campbell wrote:
On Thu, 2013-01-03 at 15:37 +0000, Matthew Fioravante wrote:
The following are the final set of patches for vtpm in xen.
They are derived from the previous v7 and Ian's xen
vtpm respository with the various minor bug fixes we
have discussed and fixed along the way. The bug fixes
are baked into their respective patches.
Thanks.

Unfortunately I'm afraid this fails to build for me when cmake is
installed. I get:

ld -nostdlib 
-L/local/scratch/ianc/devel/committer.git/stubdom/cross-root-x86_64/x86_64-xen-elf/lib
  -m elf_x86_64 -T arch/x86/minios-x86_64.lds \
        
/local/scratch/ianc/devel/committer.git/stubdom/mini-os-x86_64-vtpm/mini-os.o  \
        -o 
/local/scratch/ianc/devel/committer.git/stubdom/mini-os-x86_64-vtpm/mini-os
ld: warning: section `.bss' type changed to PROGBITS
/local/scratch/ianc/devel/committer.git/stubdom/mini-os-x86_64-vtpm/mini-os.o: 
In function `mkdirs':
tpm_emulator_extern.c:(.text+0xbd95): undefined reference to `__errno_location'
tpm_emulator_extern.c:(.text+0xbdad): undefined reference to `__errno_location'
/local/scratch/ianc/devel/committer.git/stubdom/mini-os-x86_64-vtpm/mini-os.o: 
In function `_tpm_extern_init':
tpm_emulator_extern.c:(.text+0xbe7f): undefined reference to `open'
tpm_emulator_extern.c:(.text+0xbe9b): undefined reference to `__errno_location'
/local/scratch/ianc/devel/committer.git/stubdom/mini-os-x86_64-vtpm/mini-os.o: 
In function `_tpm_write_to_storage':
tpm_emulator_extern.c:(.text+0xc1e9): undefined reference to `open'
/local/scratch/ianc/devel/committer.git/stubdom/mini-os-x86_64-vtpm/mini-os.o: 
In function `_tpm_read_from_storage':
tpm_emulator_extern.c:(.text+0xc27b): undefined reference to `open'
tpm_emulator_extern.c:(.text+0xc2a2): undefined reference to `lseek'
tpm_emulator_extern.c:(.text+0xc2ba): undefined reference to `lseek'
make[2]: *** 
[/local/scratch/ianc/devel/committer.git/stubdom/mini-os-x86_64-vtpm/mini-os] 
Error 1
make[2]: Leaving directory 
`/local/scratch/ianc/devel/committer.git/extras/mini-os'

lseek and open are defined in extras/mini-os/lib/sys.c but:
$ nm stubdom/mini-os-x86_64-vtpm/lib/sys.o | egrep T.\(open\|lseek\)
0000000000002456 T lseek64
0000000000002a4e T open64

Perhaps some sort of -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE mismatch
between the libc and the app libraries?

Not sure about the __errno_location one other than:

$ grep -B2 __errno_location stubdom/caml/main-caml.c
/* Ugly binary compatibility with Linux */
FILE *_stderr asm("stderr");
int *__errno_location;

__errno_location is what the lvalue "errno" expands to under GCC headers. See /usr/include/bits/errno.h

Not that I can help with the actual build failure

~Andrew


Everything else seems to build ok. so without cmake installed it works
fine.

Matthew Fioravante (8):
   add vtpm-stubdom code
   add stubdom/vtpmmgr code
   vtpm/vtpmmgr and required libs to stubdom/Makefile
   Add vtpm documentation
   README: Add cmake dependency
   stubdom: Add autoconf
   Add a top level configure script
   Add conditional build of subsystems to configure.ac
Ian.


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