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



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;

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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