util/cbfstool: Revise lex/yacc (bison) generation

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Revise the Makefile.inc rules for generating FMD parser files.

- lex:  If --header-file is supported then the lex (usually flex) should
        also support '-o' so we don't need to do redirection (-t).

- yacc: Bison is already required by bincfg and sconfig so we
        can change the default parser compiler to Bison. That also
	allows us to use -o and --defines to override the output files.

- both: Line directives are only helpful when debugging the scanner and
        the parser, so we should remove them to get better git diff
	results  (-L for lex, -l for bison).

Also regenerated the shipped files with latest version of flex (2.6.4)
and bison (3.8.2).

Change-Id: I15b58ff65dcd9f3f3a6095aa004091ff733ffec3
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75851
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>

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This commit is contained in:

Hung-Te Lin

2023-06-15 15:26:40 +08:00

committed by Martin L Roth

parent a421ae99fb

commit 8cb45aadf7

5 changed files with 772 additions and 913 deletions

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