libpayload: Add a new "die" function to fatally signal programming errors.

If a programming error is detected, die can be used to print a message and
stop execution similar to failing an assert. There's also a "die_if" function
which is conditional.

die functions, like asserts, should be used to trap programming errors and not
when the hardware does something wrong. If all code was written perfectly, no
die function would ever be called. In other words, it would be appropriate to
use die if a function was called with a value that was out of bounds or if
malloc failed. It wouldn't be appropriate if an external device doesn't
respond.

In the future, the die family of functions might print a stack trace or show
other debugging info.

Old-Change-Id: I653fc8cb0b4e459522f1b86f7fac280836d57916
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://chromium-review.googlesource.com/178000
Reviewed-by: Gabe Black <gabeblack@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
(cherry picked from commit 59df109d56a0f5346562de9b3124666a4443adf0)

libpayload: Fix the license in some files which were accidentally made GPL.

Some files were accidentally made GPL when they were added to libpayload. This
change changes them over to a BSD license to be in line with the intended
license of libpayload.

Old-Change-Id: Ia95ac4951b173dcb93cb489705680e7313df3c92
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: https://chromium-review.googlesource.com/182202
Reviewed-by: Ronald Minnich <rminnich@chromium.org>
Commit-Queue: Gabe Black <gabeblack@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
(cherry picked from commit 5f47600e50e82de226f2fa6ea81d4a3d1c56277b)

Squashed the initial patch for "die" functions and a later update to
the license header.

Change-Id: I3a62cd820e676f4458e61808733d81edd3d76e87
Signed-off-by: Isaac Christensen <isaac.christensen@se-eng.com>
Reviewed-on: http://review.coreboot.org/6889
Tested-by: build bot (Jenkins)
Reviewed-by: David Hendricks <dhendrix@chromium.org>

0 files changed, 0 insertions, 0 deletions