mirror of
https://github.com/ctm/syn68k.git
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37 lines
989 B
Perl
37 lines
989 B
Perl
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#!/usr/bin/perl -ni
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# This perl script strips out the extra cruft created as a side effect of
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# splitting syn68k.c into many functions. This will make the resulting
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# syn68k.o file smaller and also force the real branch targets to be
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# aligned optimally.
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# Delete the header for each function
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if (/^\.globl _s68k_handle_opcode_0x/ .. /^[#\/]APP$/)
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{
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print if (/^[#\/]APP/ || /^L/);
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}
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# Delete the trailer for each function
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elsif (/^_S68K_DONE_WITH/ .. /^\s*ret$/)
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{
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print if (!/\s*movl %ebp,%esp$/
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&& !/\s*leal\s*(-?\d+)?\(%ebp\),%esp$/
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&& !/\s*movl\s*(-?\d+)?\(%ebp\),%edi$/
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&& !/\s*popl/
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&& !/\s*ret$/
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&& !/^_S68K_DONE_WITH/
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&& !/s68k_handle_opcode/);
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}
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elsif (/^\s*lods/)
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{
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die "lods not allowed; we're punting cld's these days.";
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}
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# elsif (/^\s*call/ && !/s68k_handle_opcode/)
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# { # no longer necessary since we punted lodsl
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# print "$_\tcld\n";
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# }
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elsif (!/s68k_handle_opcode/)
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{
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print;
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}
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