Enable removing most of mathoms.c and stub functions #22691
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Good idea to trim the mathoms section. I wouldnt remove all of the mathoms, if lets say the modern API has 5 args, most of which are 0 or NULL, but the old one has 1 or 2 args. But for this branch, good idea. Nobody uses |
Prior to this commit these were illegal. This causes embed.fnc to generate macro 'Perl_foo' #defined to be macro 'foo'. If the macro name is all upper case, we instead get macro 'PERL_FOO' for 'FOO'. This could be used to easily convert existing macros into having long names should some become a name space pollution problem. This also documents in embed.fnc, under the 'm' flag discussion, how to use this instead of placing things in mathoms.c, or creating stub functions.
This uses the new mechanism introduced in the previous commit.
This is now implemented entirely via macros
This is now entirely implemented by macros
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It turns out to be pretty simple to extend embed.pl to allow macros to be easily created to replace stub functions that clutter up various of our source files. This commit does that and then uses it to replace half a dozen-ish functions of various forms.
Usually these functions are called only by someone using the long name, and for those people, it's slower. By making them macros, there's no overhead, and the binary is simplified.