SPDX is an international standard for documenting software license
requirements. Remove the existing headers and replace with a brief
SPDX preamble.
See: https://spdx.dev/use/specifications/
The script used to convert the files is added to "tools", and the
file header templates in headers/ are updated.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Along with C and other languages, the current trend is to be able to
probe for features rather than relying on version numbers. This is
motivated in part by the intent of bumping the major version number to
3.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
The use of pass0, pass1, pass2, and "pass" passed as an argument is
really confusing and already caused a severe bug in the 2.14.01
release cycle. Clean them up and be far more explicit about what
various passes mean.
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
Make the source code easier to understand and keep track of by
organizing it into subdirectories depending on the function.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>