mirror of
https://github.com/Rockbox/rockbox.git
synced 2025-10-14 02:27:39 -04:00
lua move constants out of binary image
Rockbox constants are auto generated by a perl script like the majority of the plugin functions. Constants are contained in rb_defines.lua, if the file exists it is auto loaded by the lua state for backwards compatibility Frees ~1k Change-Id: I237700576c748f468249e501c839d89effca3f39
This commit is contained in:
William Wilgus
parent
47639fb9ac
commit
c9aeb4284e
4 changed files with 215 additions and 7 deletions
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@ -35,11 +35,16 @@ else
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ROCKS += $(LUA_BUILDDIR)/lua.rock
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endif
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$(LUA_BUILDDIR)/lua.rock: $(LUA_OBJ) $(TLSFLIB) $(LUA_BUILDDIR)/actions.lua $(LUA_BUILDDIR)/buttons.lua $(LUA_BUILDDIR)/settings.lua $(LUA_BUILDDIR)/rocklib_aux.o $(LUA_INCLUDELIST)
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$(LUA_BUILDDIR)/lua.rock: $(LUA_OBJ) $(TLSFLIB) $(LUA_BUILDDIR)/actions.lua $(LUA_BUILDDIR)/buttons.lua $(LUA_BUILDDIR)/settings.lua $(LUA_BUILDDIR)/rocklib_aux.o $(LUA_BUILDDIR)/rb_defines.lua $(LUA_INCLUDELIST)
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$(LUA_BUILDDIR)/actions.lua: $(LUA_OBJ) $(LUA_SRCDIR)/action_helper.pl
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$(call PRINTS,GEN $(@F))$(CC) $(PLUGINFLAGS) $(INCLUDES) -E -P $(APPSDIR)/plugins/lib/pluginlib_actions.h | $(LUA_SRCDIR)/action_helper.pl > $(LUA_BUILDDIR)/actions.lua
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$(LUA_BUILDDIR)/rb_defines.lua: $(LUA_OBJ) $(LUA_SRCDIR)/rbdefines_helper.pl
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$(SILENT)$(CC) $(INCLUDES) -dD -E -P $(TARGET) $(CFLAGS) -include plugin.h - < /dev/null | $(LUA_SRCDIR)/rbdefines_helper.pl | \
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$(HOSTCC) -fno-builtin $(HOST_INCLUDES) -x c -o $(LUA_BUILDDIR)/rbdefines_helper -
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$(call PRINTS,GEN $(@F))$(LUA_BUILDDIR)/rbdefines_helper > $(LUA_BUILDDIR)/rb_defines.lua
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$(LUA_BUILDDIR)/settings.lua: $(LUA_OBJ) $(LUA_SRCDIR)/settings_helper.pl
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$(SILENT)$(CC) $(INCLUDES) -E -P $(TARGET) $(CFLAGS) -include plugin.h -include cuesheet.h - < /dev/null | $(LUA_SRCDIR)/settings_helper.pl | \
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$(CC) $(INCLUDES) $(TARGET) $(CFLAGS) -S -x c -include config.h -include plugin.h -o $(LUA_BUILDDIR)/settings_helper.s -
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199
apps/plugins/lua/rbdefines_helper.pl
Executable file
199
apps/plugins/lua/rbdefines_helper.pl
Executable file
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@ -0,0 +1,199 @@
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#!/usr/bin/env perl
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############################################################################
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# __________ __ ___.
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# Open \______ \ ____ ____ | | _\_ |__ _______ ___
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# Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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# Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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# Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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# \/ \/ \/ \/ \/
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# $Id$
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#
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# Copyright (C) 2019 by William Wilgus
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#
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# All files in this archive are subject to the GNU General Public License.
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# See the file COPYING in the source tree root for full license agreement.
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#
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# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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# KIND, either express or implied.
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#
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############################################################################
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#rockbox to lua define generator, add names of constants to the array to include
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my @rockbox_defines = (
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'^HZ$',
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'^LCD_(DEPTH|HEIGHT|WIDTH)$',
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'^MODEL_NAME$',
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'^SCREEN_MAIN$',
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'^LCD_DEFAULT_(FG|BG)$',
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'^LCD_REMOTE_(DEPTH|HEIGHT|WIDTH)$',
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'^LCD_.+(BRIGHT|DARK)COLOR',
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'^SCREEN_REMOTE$',
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'^FONT_SYSFIXED$',
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'^FONT_UI$',
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'^PLAYLIST_(INSERT|PREPEND|REPLACE)',
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'^TOUCHSCREEN_(POINT|BUTTON)$',
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'^HOME_DIR$',
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'^PLUGIN_DIR$',
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'^PLUGIN(_APPS_|_GAMES_|_)DATA_DIR$',
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'^ROCKBOX_DIR$',
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'^VIEWERS_DATA_DIR$');
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my @captured_defines;
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my @names_seen;
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my @all_defines;
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############# precompile regex for speed #############
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my $def_regex = qr/#define\s+([^\s\r\n]+)\s+([^\r\n]+)/;
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my $quot_regex = qr/.*([\"\']).*/;
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my $num_regex = qr/.*([\+\-\*\\|&\d]).*/;
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print <<EOF
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#include <stdio.h>
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#include <stdbool.h>
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#define stringify(s) #s
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/* auto generated defines */
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EOF
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;
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while(my $line = <STDIN>)
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{
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if($line =~ $def_regex) #does it begin with #define?
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{
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push(@all_defines, $line); #save all defines for possible ambiguous macros
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$name = $1;
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next if $name =~ /^(ATTRIBUTE_|print|__).*/; #don't add reserved
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$value = $2;
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if(grep($name =~ $_, @rockbox_defines))
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{
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push(@names_seen, $name);
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push(@captured_defines, {'name' => $name, 'value' => $value});
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print $line
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}
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else
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{
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$name =~ s{(\(.*\))}{}gx; #remove (...) on function type macros
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#ifndef guard so we don't clash with the host
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printf "#ifndef %s\n%s#endif\n\n", $name, $line;
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}
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}
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elsif($line =~ /^(?!.*;)enum.*{/) #enum {
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{
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print $line;
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next if($line =~ /.*};.*/);
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do_enum($line)
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}
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elsif($line =~ /^(?!.*[;\(\)])enum.*/) #enum
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{
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#need to be careful might be a function returning enum
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my $lastline = $line;
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next if($line =~ /.*};.*/);
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($line = <STDIN>);
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if($line =~ /.*{.*/)
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{
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print $lastline;
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print $line;
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}
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else { next; }
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do_enum($line)
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}
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}
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#Sort the functions
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my @sorted_defines = sort { @$a{'name'} cmp @$b{'name'} } @captured_defines;
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printf "int main(void)\n{\n";
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printf "\tprintf(\"--[[Autogenerated rockbox constants]]\\n\\n\");";
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# Print the C array
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foreach my $define (@sorted_defines)
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{
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if(@$define{'value'} =~ /^0[xX][0-9a-fA-F]+$/) #hex number
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{
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printf "\tprintf(\"rb[\\\"%%s\\\"] = 0x%%x\\n\", stringify(%s), %s);\n", @$define{'name'}, @$define{'name'};
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}
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elsif(@$define{'value'} =~ /^[0-9]+$/) #number
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{
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printf "\tprintf(\"rb[\\\"%%s\\\"] = %%d\\n\", stringify(%s), %s);\n", @$define{'name'}, @$define{'name'};
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}
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else #might be a string but we don't know since the macro isn't expanded far enough
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{
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my $max_depth = 10;
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my $var = @$define{'value'};
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while($max_depth > 0) #follow the chain of #defines until we can see what type
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{
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$max_depth--;
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$var = "\\\s*#define\\s+$var\\s+.*";
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#warn $var;
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if(my ($x) = grep($_ =~ /($var)/, @all_defines)) #check all the defines
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{
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#warn $x;
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if($x =~ $def_regex)
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{
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$var = $2;
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#warn $var;
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last if ($var =~ $quot_regex);
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last if ($var =~ $num_regex);
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next
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}
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#warn "end ".$var;
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last
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}
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else
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{
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$var = @$define{'value'};
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last
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}
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}
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if ($var =~$quot_regex) #has a quote it is a string
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{
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#guard with empty literals "" so gcc throws an error if it isn't a string
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printf "\tprintf(\"rb[\\\"%%s\\\"] = \\\"%%s\\\"\\n\", stringify(%s), \"\" %s \"\");\n", @$define{'name'}, @$define{'name'};
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}
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elsif ($var =~$num_regex) #it must be a number
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{
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printf "\tprintf(\"rb[\\\"%%s\\\"] = %%d\\n\", stringify(%s), %s);\n", @$define{'name'}, @$define{'name'};
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}
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else { warn "Skipping ".@$define{'name'}." indeterminate macro type\n"; }
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}
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}
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print <<EOF
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return 0;
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}
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EOF
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;
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sub do_enum {
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my ($line) = @_;
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while($line = <STDIN>)
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{
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if($line =~ /.*};.*/)
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{
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print $line;
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last
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}
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elsif($line =~ /([^\s,\t]+)\s*=?.*,?/)
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{
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$name = $1;
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#printf "%s WHATTT?", $name;
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$value = "0"; #enums are always integers
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}
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print $line;
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if(grep($name =~ $_, @rockbox_defines))
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{
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push(@names_seen, $name);
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push(@captured_defines, {'name' => $name, 'value' => $value});
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}
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}
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}
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@ -793,7 +793,11 @@ LUALIB_API int luaopen_rock(lua_State *L)
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{
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luaL_register(L, LUA_ROCKLIBNAME, rocklib);
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luaL_register(L, LUA_ROCKLIBNAME, rocklib_aux);
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lua_getglobal(L, "require");
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lua_pushstring(L, "rb_defines");
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if (lua_pcall (L, 1, 0, 0))
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lua_pop(L, 1);
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#if 0
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static const struct lua_int_reg rlib_const_int[] =
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{
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/* useful integer constants */
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@ -860,7 +864,7 @@ LUALIB_API int luaopen_rock(lua_State *L)
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luaS_newlloc(L, rlcs->name, TSTR_INBIN);
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lua_setfield(L, -2, rlcs->name);
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}
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#endif
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return 1;
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}
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@ -31,15 +31,15 @@
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static const luaL_Reg lualibs[] = {
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{"", luaopen_base},
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{LUA_LOADLIBNAME, luaopen_package},
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{LUA_TABLIBNAME, luaopen_table},
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{LUA_STRLIBNAME, luaopen_string},
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{LUA_BITLIBNAME, luaopen_bit},
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{LUA_IOLIBNAME, luaopen_io},
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{LUA_MATHLIBNAME, luaopen_math},
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{LUA_OSLIBNAME, luaopen_os},
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{LUA_ROCKLIBNAME, luaopen_rock},
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{LUA_ROCKLIBNAME, luaopen_rock_img},
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{LUA_BITLIBNAME, luaopen_bit},
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{LUA_IOLIBNAME, luaopen_io},
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{LUA_LOADLIBNAME, luaopen_package},
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{LUA_MATHLIBNAME, luaopen_math},
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{LUA_DIRLIBNAME, luaopen_luadir},
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{NULL, NULL}
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};
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