Introduce the notion of a 'sample comment'.

- presence of the sample's reported.by file is now mandatory.
- when saving a sample, reporter name & URL are queried, to avoid operator forget about creating the reported.by file.
- when saving a sample, one can store a few-liner comment.
- when recalling a sample, the reporter name, URL and comment (if present) are printed.
- update the powerpc-e500v2-linux-gnuspe sample to include Nate's comment (from his original mail).
- update all samples that were missing the reported.by file.

/trunk/scripts/saveSample.sh | 46 35 11 0 ++++++++++++++++++------
/trunk/scripts/showSamples.sh | 12 6 6 0 +++---
/trunk/samples/powerpc-e500v2-linux-gnuspe/reported.by | 15 15 0 0 ++++++++
/trunk/samples/samples.mk | 22 17 5 0 +++++++++--
4 files changed, 73 insertions(+), 22 deletions(-)

 --- glibc-2.5/sysdeps/unix/sysv/linux/alpha/sigsuspend.S.orig	2006-10-22 22:17:01.000000000 +0200

 +++ glibc-2.5/sysdeps/unix/sysv/linux/alpha/sigsuspend.S	2006-10-22 22:18:05.000000000 +0200

 @@ -31,3 +31,21 @@

  libc_hidden_def (__sigsuspend)

  weak_alias (__sigsuspend, sigsuspend)

  strong_alias (__sigsuspend, __libc_sigsuspend)

 +

 +#ifndef NO_CANCELLATION

 +	.globl __sigsuspend_nocancel;

 +	.align 4;

 +	.type __sigsuspend_nocancel, @function;

 +	.usepv __sigsuspend_nocancel, std;

 +	cfi_startproc;

 +__LABEL(__sigsuspend_nocancel)

 +	ldgp    gp, 0(pv);

 +	PSEUDO_PROF;

 +	PSEUDO_PREPARE_ARGS

 +	lda     v0, SYS_ify(sigsuspend);

 +	call_pal PAL_callsys;

 +	bne     a3, SYSCALL_ERROR_LABEL;

 +	ret;

 +	cfi_endproc;

 +	.size __sigsuspend_nocancel, .-__sigsuspend_nocancel

 +#endif