mirror of https://github.com/openssl/openssl
Refactor linker script generation
The generation of linker scripts was badly balanced, as all sorts of platform dependent stuff went into the top build.info, when that part should really be made as simply and generic as possible. Therefore, we move a lot of the "magic" to the build files templates, since they are the place for platform dependent things. What remains is to parametrize just enough in the build.info file to generate the linker scripts correctly for each associated library. "linker script" is a term usually reserved for certain Unix linkers. However, we only use them to say what symbols should be exported, so we use the term loosely for all platforms. The internal extension is '.ld', and is changed by the build file templates as appropriate for each target platform. Note that this adds extra meaning to the value of the shared_target attribute. Reviewed-by: Tim Hudson <tjh@openssl.org> (Merged from https://github.com/openssl/openssl/pull/7333)
This commit is contained in:
Richard Levitte
parent
b44882a0bd
commit
ef2dfc9902
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@ -211,7 +211,7 @@ my %targets = (
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ex_libs => add("-lsocket -lnsl -ldl"),
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dso_scheme => "dlfcn",
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thread_scheme => "pthreads",
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shared_target => "self",
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shared_target => "solaris",
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shared_extension => ".so.\$(SHLIB_VERSION_NUMBER)",
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shared_ldflag => "-Wl,-Bsymbolic",
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shared_defflag => "-Wl,-M,",
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@ -1113,7 +1113,7 @@ my %targets = (
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lflags => "-Wl,-bsvr4",
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thread_scheme => "pthreads",
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dso_scheme => "dlfcn",
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shared_target => "self",
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shared_target => "aix",
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module_ldflags => "-Wl,-G,-bsymbolic,-bexpall",
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shared_ldflag => "-Wl,-G,-bsymbolic",
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shared_defflag => "-Wl,-bE:",
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@ -1230,6 +1230,8 @@ my %targets = (
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lib_defines => add("L_ENDIAN"),
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dso_cflags => "/Zi /Fddso.pdb",
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bin_cflags => "/Zi /Fdapp.pdb",
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# def_flag made to empty string so a .def file gets generated
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shared_defflag => '',
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shared_ldflag => "/dll",
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shared_target => "win-shared", # meaningless except it gives Configure a hint
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thread_scheme => "winthreads",
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@ -1743,6 +1745,8 @@ my %targets = (
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dso_cflags => "",
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ex_libs => add(sub { return vms_info()->{zlib} || (); }),
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shared_target => "vms-shared",
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# def_flag made to empty string so a .opt file gets generated
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shared_defflag => '',
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dso_scheme => "vms",
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thread_scheme => "pthreads",
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@ -169,7 +169,14 @@ In each table entry, the following keys are significant:
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assembler files used when compiling with
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assembler implementations.
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shared_target => The shared library building method used.
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This is a target found in Makefile.shared.
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This serves multiple purposes:
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- as index for targets found in shared_info.pl.
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- as linker script generation selector.
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To serve both purposes, the index for shared_info.pl
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should end with '-shared', and this suffix will be
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removed for use as a linker script generation
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selector. Note that the latter is only used if
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'shared_defflag' is defined.
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build_scheme => The scheme used to build up a Makefile.
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In its simplest form, the value is a string
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with the name of the build scheme.
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@ -132,7 +132,10 @@ DEPS={- our @deps = map { (my $x = $_) =~ s|\.o$|\$(DEP_EXT)|; $x; }
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{- output_on() if $disabled{makedepend}; "" -}
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GENERATED_MANDATORY={- join(", ", map { "-\n\t".$_ } @{$unified_info{depends}->{""}} ) -}
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GENERATED={- # common0.tmpl provides @generated
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join(", ", map { (my $x = $_) =~ s|\.[sS]$|.asm|; "-\n\t".$x }
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join(", ", map { my $x = $_;
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$x =~ s|\.[sS]$|.asm|;
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$x =~ s|\.ld$|.OPT|;
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"-\n\t".$x }
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@generated) -}
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INSTALL_LIBS={- join(", ", map { "-\n\t".$_.".OLB" } @install_libs) -}
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@ -748,12 +751,19 @@ reconfigure reconf :
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sub generatesrc {
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my %args = @_;
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(my $target = $args{src}) =~ s/\.[sS]$/.asm/;
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my $generator = join(" ", @{$args{generator}});
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my $generator_incs = join("", map { ' "-I'.$_.'"' } @{$args{generator_incs}});
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my $deps = join(", -\n\t\t", @{$args{generator_deps}}, @{$args{deps}});
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if ($target !~ /\.asm$/) {
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if ($args{src} =~ /\.ld$/) {
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(my $target = $args{src}) =~ s/\.ld$/.OPT/;
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my $mkdef = sourcefile('util', 'mkdef.pl');
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return <<"EOF";
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$target : $args{generator}->[0] $deps
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\$(PERL) $mkdef $args{generator}->[1] "VMS" > $target
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EOF
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} elsif ($target !~ /\.[sS]$/) {
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my $target = $args{src};
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if ($args{generator}->[0] =~ m|^.*\.in$|) {
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my $dofile = abs2rel(rel2abs(catfile($config{sourcedir},
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"util", "dofile.pl")),
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@ -770,6 +780,7 @@ $target : $args{generator}->[0] $deps
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EOF
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}
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} else {
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(my $target = $args{src}) =~ s/\.[sS]$/.asm/;
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if ($args{generator}->[0] =~ /\.pl$/) {
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$generator = '$(PERL)'.$generator_incs.' '.$generator;
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} elsif ($args{generator}->[0] =~ /\.S$/) {
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@ -913,7 +924,9 @@ EOF
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my @objs = map { (my $x = $_) =~ s|\.o$|.OBJ|; $x }
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grep { $_ =~ m|\.o$| }
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@{$args{objs}};
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my @defs = grep { $_ =~ /\.opt$/ } @{$args{objs}};
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my @defs = map { (my $x = $_) =~ s|\.ld$|.OPT|; $x }
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grep { $_ =~ /\.ld$/ }
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@{$args{objs}};
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my @deps = compute_lib_depends(@{$args{deps}});
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die "More than one symbol vector" if scalar @defs > 1;
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my $deps = join(", -\n\t\t", @objs, @defs, @deps);
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@ -53,7 +53,7 @@ my %shared_info;
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'mingw-shared' => sub {
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return {
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%{$shared_info{'cygwin-shared'}},
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# def_flag made to empty string so it still generates
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# def_flag made to empty string so it still generates
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# something
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shared_defflag => '',
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};
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@ -4,6 +4,7 @@
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## {- join("\n## ", @autowarntext) -}
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{-
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our $objext = $target{obj_extension} || ".o";
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our $defext = $target{def_extension} || ".ld";
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our $depext = $target{dep_extension} || ".d";
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our $exeext = $target{exe_extension} || "";
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our $libext = $target{lib_extension} || ".a";
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@ -112,7 +113,10 @@ DEPS={- join(" ", map { (my $x = $_) =~ s|\.o$|$depext|; $x; }
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{- output_on() if $disabled{makedepend}; "" -}
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GENERATED_MANDATORY={- join(" ", @{$unified_info{depends}->{""}}) -}
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GENERATED={- # common0.tmpl provides @generated
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join(" ", @generated ) -}
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join(" ", map { my $x = $_;
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$x =~ s|\.ld$|$defext|;
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$x }
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@generated ) -}
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INSTALL_LIBS={- join(" ", map { lib($_) } @{$unified_info{install}->{libraries}}) -}
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INSTALL_SHLIBS={- join(" ", map { shlib($_) } @{$unified_info{install}->{libraries}}) -}
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@ -408,7 +412,7 @@ libclean:
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fi; \
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done
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$(RM) $(LIBS)
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$(RM) *.map
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$(RM) *.{- $defext -}
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clean: libclean
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$(RM) $(PROGRAMS) $(TESTPROGS) $(ENGINES) $(SCRIPTS)
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@ -956,7 +960,14 @@ reconfigure reconf:
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my $incs = join("", map { " -I".$_ } @{$args{incs}});
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my $deps = join(" ", @{$args{generator_deps}}, @{$args{deps}});
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if ($args{src} !~ /\.[sS]$/) {
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if ($args{src} =~ /\.ld$/) {
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(my $target = $args{src}) =~ s/\.ld$/${defext}/;
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(my $mkdef_os = $target{shared_target}) =~ s|-shared$||;
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return <<"EOF";
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$target: $args{generator}->[0] $deps
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\$(PERL) \$(SRCDIR)/util/mkdef.pl $args{generator}->[1] $mkdef_os > $target
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EOF
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} elsif ($args{src} !~ /\.[sS]$/) {
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if ($args{generator}->[0] =~ m|^.*\.in$|) {
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my $dofile = abs2rel(rel2abs(catfile($config{sourcedir},
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"util", "dofile.pl")),
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@ -1102,9 +1113,11 @@ EOF
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(my $l = $f) =~ s/^lib//;
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" -l$l" } @{$args{deps}});
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my @objs = map { (my $x = $_) =~ s|\.o$||; "$x$objext" }
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grep { $_ !~ m/\.(?:def|map)$/ }
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grep { $_ !~ m/\.ld$/ }
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@{$args{objs}};
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my @defs = map { (my $x = $_) =~ s|\.ld$||; "$x$defext" }
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grep { $_ =~ /\.ld$/ }
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@{$args{objs}};
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my @defs = grep { $_ =~ /\.(?:def|map)$/ } @{$args{objs}};
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my @deps = compute_lib_depends(@{$args{deps}});
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die "More than one exported symbol map" if scalar @defs > 1;
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my $objs = join(" ", @objs);
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@ -1169,7 +1182,7 @@ EOF
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(my $l = $f) =~ s/^lib//;
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" -l$l" } @{$args{deps}});
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my @objs = map { (my $x = $_) =~ s|\.o$||; "$x$objext" }
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grep { $_ !~ m/\.(?:def|map)$/ }
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grep { $_ !~ m/\.ld$/ }
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@{$args{objs}};
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my @deps = compute_lib_depends(@{$args{deps}});
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my $objs = join(" ", @objs);
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@ -6,6 +6,7 @@
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our $objext = $target{obj_extension} || ".obj";
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our $resext = $target{res_extension} || ".res";
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our $depext = $target{dep_extension} || ".d";
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our $defext = $target{dep_extension} || ".def";
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our $exeext = $target{exe_extension} || ".exe";
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our $libext = $target{lib_extension} || ".lib";
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our $shlibext = $target{shared_extension} || ".dll";
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@ -89,7 +90,10 @@ DEPS={- join(" ", map { (my $x = $_) =~ s|\.o$|$depext|; $x; }
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{- output_on() if $disabled{makedepend}; "" -}
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GENERATED_MANDATORY={- join(" ", @{$unified_info{depends}->{""}} ) -}
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GENERATED={- # common0.tmpl provides @generated
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join(" ", map { (my $x = $_) =~ s|\.[sS]$|.asm|; $x }
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join(" ", map { my $x = $_;
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$x =~ s|\.[sS]$|.asm|;
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$x =~ s|\.ld$|$defext|;
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$x }
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@generated) -}
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INSTALL_LIBS={- join(" ", map { quotify1(lib($_)) } @{$unified_info{install}->{libraries}}) -}
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@ -496,7 +500,6 @@ reconfigure reconf:
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sub generatesrc {
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my %args = @_;
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(my $target = $args{src}) =~ s/\.[sS]$/.asm/;
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my ($gen0, @gens) = @{$args{generator}};
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my $generator = '"'.$gen0.'"'.join('', map { " $_" } @gens);
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my $generator_incs = join("", map { " -I \"$_\"" } @{$args{generator_incs}});
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@ -504,7 +507,17 @@ reconfigure reconf:
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my $deps = @{$args{deps}} ?
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'"'.join('" "', @{$args{generator_deps}}, @{$args{deps}}).'"' : '';
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if ($target !~ /\.asm$/) {
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if ($args{src} =~ /\.ld$/) {
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(my $target = $args{src}) =~ s/\.ld$/$defext/;
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my $mkdef = abs2rel(rel2abs(catfile($config{sourcedir},
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"util", "mkdef.pl")),
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rel2abs($config{builddir}));
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return <<"EOF";
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$target: $args{generator}->[0] $deps
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\$(PERL) $mkdef $args{generator}->[1] 32 > $target
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EOF
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} elsif ($args{src} !~ /\.[sS]$/) {
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my $target = $args{src};
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if ($args{generator}->[0] =~ m|^.*\.in$|) {
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my $dofile = abs2rel(rel2abs(catfile($config{sourcedir},
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"util", "dofile.pl")),
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@ -521,6 +534,7 @@ $target: "$args{generator}->[0]" $deps
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EOF
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}
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} else {
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(my $target = $args{src}) =~ s/\.[sS]$/.asm/;
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if ($args{generator}->[0] =~ /\.pl$/) {
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$generator = '"$(PERL)"'.$generator_incs.' '.$generator;
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} elsif ($args{generator}->[0] =~ /\.S$/) {
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@ -623,7 +637,9 @@ EOF
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my @objs = map { (my $x = $_) =~ s|\.o$|$objext|; $x }
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grep { $_ =~ m/\.(?:o|res)$/ }
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@{$args{objs}};
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my @defs = grep { $_ =~ /\.def$/ } @{$args{objs}};
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my @defs = map { (my $x = $_) =~ s|\.ld$||; "$x$defext" }
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grep { $_ =~ /\.ld$/ }
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@{$args{objs}};
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my @deps = compute_lib_depends(@{$args{deps}});
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die "More than one exported symbols list" if scalar @defs > 1;
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my $linklibs = join("", map { "$_\n" } @deps);
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19
Configure
19
Configure
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@ -1121,7 +1121,9 @@ $target{exe_extension}="";
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$target{exe_extension}=".exe" if ($config{target} eq "DJGPP"
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|| $config{target} =~ /^(?:Cygwin|mingw)/);
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$target{exe_extension}=".pm" if ($config{target} =~ /vos/);
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$target{def_extension}=".ld";
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$target{def_extension}=".def" if $config{target} =~ /^mingw|VC-/;
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$target{def_extension}=".opt" if $config{target} =~ /^vms/;
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($target{shared_extension_simple}=$target{shared_extension})
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=~ s|\.\$\(SHLIB_VERSION_NUMBER\)||
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unless defined($target{shared_extension_simple});
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@ -2074,11 +2076,11 @@ EOF
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my $o = cleanfile($buildd, $o, $blddir);
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$unified_info{shared_sources}->{$ddest}->{$o} = -1;
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$unified_info{sources}->{$o}->{$s} = -1;
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} elsif ($s =~ /\.(def|map|opt)$/) {
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# We also recognise .def / .map / .opt files
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} elsif ($s =~ /\.ld$/) {
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# We also recognise linker scripts (or corresponding)
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# We know they are generated files
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my $def = cleanfile($buildd, $s, $blddir);
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$unified_info{shared_sources}->{$ddest}->{$def} = 1;
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my $ld = cleanfile($buildd, $s, $blddir);
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$unified_info{shared_sources}->{$ddest}->{$ld} = 1;
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} else {
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die "unrecognised source file type for shared library: $s\n";
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}
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@ -2189,7 +2191,7 @@ EOF
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}
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}
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# Go through all object files and change their names to something that
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# Go through all intermediary files and change their names to something that
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# reflects what they will be built for. Note that for some source files,
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# this leads to duplicate object files because they are used multiple times.
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# the goal is to rename all object files according to this scheme:
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@ -2246,8 +2248,9 @@ EOF
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map { keys %{$unified_copy{$_}->{$prod}} }
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@src;
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foreach (keys %prod_sources) {
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# Only affect object or resource files, the others
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# simply get a new value (+1 instead of -1)
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# Only affect object files and resource files,
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# the others simply get a new value
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# (+1 instead of -1)
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if ($_ =~ /\.(o|res)$/) {
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(my $prodname = $prod) =~ s|\.a$||;
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my $newobj =
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|
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47
build.info
47
build.info
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@ -25,50 +25,11 @@ DEPEND[crypto/include/internal/dso_conf.h]=configdata.pm
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GENERATE[crypto/include/internal/dso_conf.h]=crypto/include/internal/dso_conf.h.in
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IF[{- defined $target{shared_defflag} -}]
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IF[{- $config{target} =~ /^mingw/ -}]
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GENERATE[libcrypto.def]=util/mkdef.pl crypto 32
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DEPEND[libcrypto.def]=util/libcrypto.num
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GENERATE[libssl.def]=util/mkdef.pl ssl 32
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DEPEND[libssl.def]=util/libssl.num
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SHARED_SOURCE[libcrypto]=libcrypto.ld
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SHARED_SOURCE[libssl]=libssl.ld
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SHARED_SOURCE[libcrypto]=libcrypto.def
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SHARED_SOURCE[libssl]=libssl.def
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ELSIF[{- $config{target} =~ /^aix/ -}]
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GENERATE[libcrypto.map]=util/mkdef.pl crypto aix
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DEPEND[libcrypto.map]=util/libcrypto.num
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GENERATE[libssl.map]=util/mkdef.pl ssl aix
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DEPEND[libssl.map]=util/libssl.num
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SHARED_SOURCE[libcrypto]=libcrypto.map
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SHARED_SOURCE[libssl]=libssl.map
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ELSE
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GENERATE[libcrypto.map]=util/mkdef.pl crypto linux
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DEPEND[libcrypto.map]=util/libcrypto.num
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GENERATE[libssl.map]=util/mkdef.pl ssl linux
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DEPEND[libssl.map]=util/libssl.num
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SHARED_SOURCE[libcrypto]=libcrypto.map
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SHARED_SOURCE[libssl]=libssl.map
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ENDIF
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ENDIF
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# VMS and VC don't have parametrised .def / .symvec generation, so they get
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# special treatment, since we know they do use these files
|
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IF[{- $config{target} =~ /^VC-/ -}]
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GENERATE[libcrypto.def]=util/mkdef.pl crypto 32
|
||||
DEPEND[libcrypto.def]=util/libcrypto.num
|
||||
GENERATE[libssl.def]=util/mkdef.pl ssl 32
|
||||
DEPEND[libssl.def]=util/libssl.num
|
||||
|
||||
SHARED_SOURCE[libcrypto]=libcrypto.def
|
||||
SHARED_SOURCE[libssl]=libssl.def
|
||||
ELSIF[{- $config{target} =~ /^vms/ -}]
|
||||
GENERATE[libcrypto.opt]=util/mkdef.pl crypto "VMS"
|
||||
DEPEND[libcrypto.opt]=util/libcrypto.num
|
||||
GENERATE[libssl.opt]=util/mkdef.pl ssl "VMS"
|
||||
DEPEND[libssl.opt]=util/libssl.num
|
||||
|
||||
SHARED_SOURCE[libcrypto]=libcrypto.opt
|
||||
SHARED_SOURCE[libssl]=libssl.opt
|
||||
GENERATE[libcrypto.ld]=util/libcrypto.num crypto
|
||||
GENERATE[libssl.ld]=util/libssl.num ssl
|
||||
ENDIF
|
||||
|
||||
IF[{- $config{target} =~ /^(?:Cygwin|mingw|VC-)/ -}]
|
||||
|
|
|
|||
|
|
@ -167,12 +167,13 @@ foreach (@ARGV, split(/ /, $config{options}))
|
|||
$debug=1 if $_ eq "debug";
|
||||
$trace=1 if $_ eq "trace";
|
||||
$verbose=1 if $_ eq "verbose";
|
||||
$W32=1 if $_ eq "32";
|
||||
die "win16 not supported" if $_ eq "16";
|
||||
if($_ eq "NT") {
|
||||
if ($_ eq "32" || $_ eq "mingw") {
|
||||
$W32=1;
|
||||
} elsif ($_ eq "NT") {
|
||||
$W32 = 1;
|
||||
$NT = 1;
|
||||
} elsif ($_ eq "linux") {
|
||||
} elsif ($_ eq "linux" || $_ eq "solaris") {
|
||||
$linux=1;
|
||||
$UNIX=1;
|
||||
} elsif ($_ eq "aix") {
|
||||
|
|
|
|||
Loading…
Reference in New Issue