Virgile Prevosto authored 2 years ago and Andre Maroneze committed 1 year ago

- fix various typos and inconsistencies
- add an option in make_machdep.py to validate an existing yaml file,
  and use it to validate manually written machdeps
- add macro with the name of the machdep (used in tests/syntax/assembly_gmp.c)
- add option to Frama-C to print the content of __fc_machdep.h on stdout
  and use that to compile our libc with gcc outside of Frama-C
  (as in tests/libc/runtime.c)

There are still many missing specifications, but at least parsing should
succeed for strictly POSIX-compliant code.

Fixes #877.

Nowadays, Metrics has option -metrics-no-libc to exclude definitions from
the Frama-C standard library, which was the purpose of the __FRAMA_C_MODEL__.
Also, several libc variables were lacking the attribute, leading to
inconsistent results.

Does not work on macOS ; probably implicit path lookup is different than linux ?