diff options
Diffstat (limited to 'erts/emulator/utils/make_preload')
| -rwxr-xr-x | erts/emulator/utils/make_preload | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/erts/emulator/utils/make_preload b/erts/emulator/utils/make_preload index f489bc2a39..bcb2e42614 100755 --- a/erts/emulator/utils/make_preload +++ b/erts/emulator/utils/make_preload @@ -90,12 +90,12 @@ foreach $file (@ARGV) { open(FILE, $file) or error("failed to read $file: $!"); binmode(FILE); $_ = <FILE>; - $_ = beam_strip($_); + $_ = beam_strip($_, $file); close(FILE); push(@modules, " {\"$module\", " . length($_) . ", preloaded_$module},\n"); - print "unsigned preloaded_size_$module = ", length($_), ";\n"; - print "unsigned char preloaded_$module", "[] = {\n"; + print "const unsigned preloaded_size_$module = ", length($_), ";\n"; + print "const unsigned char preloaded_$module", "[] = {\n"; for ($i = 0; $i < length($_); $i++) { if ($i % 8 == 0 && $comment ne '') { $comment =~ s@/\*@..@g; # Comment start -- avoid warning. @@ -125,10 +125,10 @@ if ($gen_rc) { print @modules; print "END\n"; } elsif ($gen_old) { - print "struct {\n"; + print "const struct {\n"; print " char* name;\n"; print " int size;\n"; - print " unsigned char* code;\n"; + print " const unsigned char* code;\n"; print "} pre_loaded[] = {\n"; foreach (@modules) { print; @@ -147,20 +147,20 @@ sub error { } sub beam_strip { - my($beam) = @_; + my($beam,$file) = @_; my $size_left = length($beam); my %chunk; my %needed_chunk = ('Code' => 1, - 'Atom' => 1, + 'AtU8' => 1, 'ImpT' => 1, 'ExpT' => 1, 'StrT' => 1, 'FunT' => 1, 'LitT' => 1); - die "can't read Beam files for OTP R4 or earlier (sorry)" + die "$file: can't read Beam files for OTP R4 or earlier (sorry)" if $beam =~ /^\x7fBEAM!/; # @@ -177,7 +177,7 @@ sub beam_strip { die "form size $size greater than size ", $size_left, " of module" if $size > $size_left; $size_left -= 4; - die "not a BEAM file: IFF form type is not 'BEAM'" + die "$file: not a BEAM file: IFF form type is not 'BEAM'" unless $beam_id eq 'BEAM'; # @@ -197,6 +197,14 @@ sub beam_strip { } # + # Abort if there is no new-style 'AtU8' atom chunk. + # + + exists $chunk{'AtU8'} or + die "$file: no 'AtU8' chunk (re-compile with " . + "OTP 20 or later)\n"; + + # # Create a new beam file with only the useful chunk types. # |