6d03d481a0
* Makefile.am (CCFILES): Add gc.cc. (HFILES): Add gc.h. * Makefile.in: Regenerate. * gold.cc (Gc_runner): New class. (queue_initial_tasks): Call garbage collection related tasks when corresponding options are invoked. (queue_middle_gc_tasks): New function. (queue_middle_tasks): Reorder tasks to allow relocs to be read and processed early before laying out sections during garbage collection. * gold.h (queue_middle_gc_tasks): New function. (is_prefix_of): Move from "layout.cc". * i386.cc (Target_i386::gc_process_relocs): New function. * layout.cc (is_prefix_of): Remove. Move to "gold.h" * main.cc (main): Create object of class "Garbage_collection". * object.cc (Relobj::copy_symbols_data): New function. (Relobj::is_section_name_included): New function. (Sized_relobj::do_layout): Allow this function to be called twice during garbage collection and defer layout of section during the first call. * object.h (Relobj::get_symbols_data): New function. (Relobj::is_section_name_included): New function. (Relobj::copy_symbols_data): New function. (Relobj::set_symbols_data): New function. (Relobj::get_relocs_data): New function. (Relobj::set_relocs_data): New function. (Relobj::is_output_section_offset_invalid): New pure virtual function. (Relobj::gc_process_relocs): New function. (Relobj::do_gc_process_relocs): New pure virtual function. (Relobj::sd_): New data member. (Sized_relobj::is_output_section_offset_invalid): New function. (Sized_relobj::do_gc_process_relocs): New function. * options.h (General_options::gc_sections): Modify to not be a no-op. (General_options::print_gc_sections): New option. * plugin.cc (Plugin_finish::run): Remove function call to Plugin_manager::layout_deferred_objects. Move it to "gold.cc". * powerpc.cc (Target_powerpc::gc_process_relocs): New function. * reloc.cc (Read_relocs::run): Add task to process relocs and determine unreferenced sections when doing garbage collection. (Gc_process_relocs): New class. (Sized_relobj::do_gc_process_relocs): New function. (Sized_relobj::do_scan_relocs): Don't try to scan the relocs for sections that are garbage collected. * reloc.h (Gc_process_relocs): New class. * sparc.cc (Target_sparc::gc_process_relocs): New function. * symtab.cc (Symbol::should_add_dynsym_entry): Do not add entries for symbols whose corresponding sections are garbage collected. (Symbol_table::Symbol_table): Add new parameter for the garbage collection object. (Symbol_table::gc_mark_undef_symbols): New function. (Symbol_table::gc_mark_symbol_for_shlib): New function. (Symbol_table::gc_mark_dyn_syms): New function. (Symbol_table::resolve): Do not treat symbols seen in dynamic objects as garbage. (Symbol_table::add_from_object): Likewise. (Symbol_table::add_from_relobj): When building shared objects, do not treat externally visible symbols as garbage. (Symbol_table::sized_finalize_symbol): Do not check dynamic symbol table information for static and relocatable links. * symtab.h (Symbol_table::set_gc): New function. (Symbol_table::gc): New function. (Symbol_table::gc_mark_undef_symbols): New function. (Symbol_table::gc_mark_symbol_for_shlib): New function. (Symbol_table::gc_mark_dyn_syms): New function. (Symbol_table::gc_): New data member. * target.h (Sized_target::gc_process_relocs): New pure virtual function. * x86_64.cc (Target_x86_64::gc_process_relocs): New function. * testsuite/testfile.cc (Target_test::gc_process_relocs): New function.
237 lines
5.1 KiB
Makefile
237 lines
5.1 KiB
Makefile
# Process this file with automake to generate Makefile.in
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AUTOMAKE_OPTIONS =
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SUBDIRS = po testsuite
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tooldir = $(exec_prefix)/$(target_alias)
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ACLOCAL_AMFLAGS = -I ../bfd -I ../config
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AM_CFLAGS = $(WARN_CFLAGS) $(LFS_CFLAGS) $(RANDOM_SEED_CFLAGS)
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AM_CXXFLAGS = $(WARN_CXXFLAGS) $(LFS_CFLAGS) $(RANDOM_SEED_CFLAGS)
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INCLUDES = \
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-I$(srcdir) -I$(srcdir)/../include -I$(srcdir)/../elfcpp \
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-DLOCALEDIR="\"$(datadir)/locale\"" \
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-DBINDIR="\"$(bindir)\"" -DTOOLBINDIR="\"$(tooldir)/bin\"" \
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@INCINTL@
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LIBIBERTY = ../libiberty/libiberty.a
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if PLUGINS
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LIBDL = -ldl
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endif
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if THREADS
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THREADSLIB = -lpthread
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endif
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AM_YFLAGS = -d
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noinst_PROGRAMS = ld-new
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noinst_LIBRARIES = libgold.a
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CCFILES = \
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archive.cc \
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binary.cc \
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common.cc \
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compressed_output.cc \
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copy-relocs.cc \
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cref.cc \
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defstd.cc \
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descriptors.cc \
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dirsearch.cc \
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dynobj.cc \
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dwarf_reader.cc \
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ehframe.cc \
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errors.cc \
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expression.cc \
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fileread.cc \
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gc.cc \
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gold.cc \
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gold-threads.cc \
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layout.cc \
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mapfile.cc \
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merge.cc \
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object.cc \
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options.cc \
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output.cc \
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parameters.cc \
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plugin.cc \
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readsyms.cc \
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reduced_debug_output.cc \
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reloc.cc \
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resolve.cc \
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script-sections.cc \
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script.cc \
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stringpool.cc \
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symtab.cc \
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target-select.cc \
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version.cc \
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workqueue.cc \
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workqueue-threads.cc
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HFILES = \
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archive.h \
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binary.h \
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common.h \
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compressed_output.h \
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copy-relocs.h \
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cref.h \
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defstd.h \
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dirsearch.h \
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descriptors.h \
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dynobj.h \
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dwarf_reader.h \
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ehframe.h \
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errors.h \
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fileread.h \
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gc.h \
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gold.h \
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gold-threads.h \
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layout.h \
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mapfile.h \
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merge.h \
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object.h \
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options.h \
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output.h \
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parameters.h \
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plugin.h \
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readsyms.h \
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reduced_debug_output.h \
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reloc.h \
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reloc-types.h \
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script-c.h \
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script-sections.h \
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script.h \
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stringpool.h \
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symtab.h \
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target.h \
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target-reloc.h \
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target-select.h \
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tls.h \
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token.h \
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workqueue.h \
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workqueue-internal.h
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YFILES = \
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yyscript.y
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EXTRA_DIST = yyscript.c yyscript.h
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TARGETSOURCES = \
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i386.cc x86_64.cc sparc.cc powerpc.cc
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ALL_TARGETOBJS = \
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i386.$(OBJEXT) x86_64.$(OBJEXT) sparc.$(OBJEXT) powerpc.$(OBJEXT)
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libgold_a_SOURCES = $(CCFILES) $(HFILES) $(YFILES)
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sources_var = main.cc
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deps_var = $(TARGETOBJS) libgold.a $(LIBIBERTY) $(LIBINTL_DEP)
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ldadd_var = $(TARGETOBJS) libgold.a $(LIBIBERTY) $(LIBINTL) \
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$(THREADSLIB) $(LIBDL)
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ld_new_SOURCES = $(sources_var)
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ld_new_DEPENDENCIES = $(deps_var) $(LIBOBJS)
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ld_new_LDADD = $(ldadd_var) $(LIBOBJS)
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EXTRA_ld_new_SOURCES = $(TARGETSOURCES)
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# Use an explicit dependency for the bison generated header file.
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expression.$(OBJEXT): yyscript.h
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script-sections.$(OBJEXT): yyscript.h
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script.$(OBJEXT): yyscript.h
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# We have to build libgold.a before we run the tests.
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check: libgold.a
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.PHONY: install-exec-local
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install-exec-local: ld-new$(EXEEXT)
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$(mkinstalldirs) $(DESTDIR)$(bindir) $(DESTDIR)$(tooldir)/bin
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n=`echo ld | sed '$(transform)'`; \
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$(INSTALL_PROGRAM) ld-new$(EXEEXT) $(DESTDIR)$(bindir)/$${n}$(EXEEXT); \
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if test "$(bindir)" != "$(tooldir)/bin"; then \
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rm -f $(DESTDIR)$(tooldir)/bin/ld$(EXEEXT); \
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ln $(DESTDIR)$(bindir)/$${n}$(EXEEXT) $(DESTDIR)$(tooldir)/bin/ld$(EXEEXT) >/dev/null 2>/dev/null \
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|| $(INSTALL_PROGRAM) ld-new$(EXEEXT) $(DESTDIR)$(tooldir)/bin/ld$(EXEEXT); \
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fi
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# We want install to imply install-info as per GNU standards, despite
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# the cygnus option.
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install-data-local: install-info
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POTFILES= $(CCFILES) $(HFILES) $(TARGETSOURCES)
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po/POTFILES.in: @MAINT@ Makefile
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for f in $(POTFILES); do echo $$f; done | LC_ALL=C sort > tmp \
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&& mv tmp $(srcdir)/po/POTFILES.in
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# Bootstrap test support. We use ld-new to build ld1, then use ld1 to
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# build ld2. ld1 and ld2 should be identical. ld-new need not be
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# identical to ld1, since it was linked with the host linker.
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if GCC
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if NATIVE_LINKER
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gcctestdir1/ld: ld-new
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test -d gcctestdir1 || mkdir -p gcctestdir1
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rm -f gcctestdir1/ld
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(cd gcctestdir1 && $(LN_S) ../ld-new ld)
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ld1_SOURCES = $(sources_var)
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ld1_DEPENDENCIES = $(deps_var) gcctestdir1/ld
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ld1_LDADD = $(ldadd_var)
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ld1_LDFLAGS = -Bgcctestdir1/
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gcctestdir2/ld: ld1
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test -d gcctestdir2 || mkdir -p gcctestdir2
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rm -f gcctestdir2/ld
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(cd gcctestdir2 && $(LN_S) ../ld1 ld)
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ld2_SOURCES = $(sources_var)
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ld2_DEPENDENCIES = $(deps_var) gcctestdir2/ld
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ld2_LDADD = $(ldadd_var)
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ld2_LDFLAGS = -Bgcctestdir2/
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bootstrap-test: ld2
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rm -f $@
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echo "#!/bin/sh" > $@
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echo "cmp ld1 ld2" > $@
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chmod +x $@
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libgold-1-r.o: gcctestdir1/ld libgold.a
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gcctestdir1/ld -o $@ -r --whole-archive libgold.a
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ld1_r_SOURCES = $(sources_var)
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ld1_r_DEPENDENCIES = libgold-1-r.o $(deps_var) gcctestdir1/ld
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ld1_r_LDADD = libgold-1-r.o $(ldadd_var)
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ld1_r_LDFLAGS = -Bgcctestdir1/
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gcctestdir2-r/ld: ld1-r
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test -d gcctestdir2-r || mkdir -p gcctestdir2-r
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rm -f gcctestdir2-r/ld
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(cd gcctestdir2-r && $(LN_S) ../ld1-r ld)
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libgold-2-r.o: gcctestdir2-r/ld libgold.a
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gcctestdir2-r/ld -o $@ -r --whole-archive libgold.a
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ld2_r_SOURCES = $(sources_var)
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ld2_r_DEPENDENCIES = libgold-2-r.o $(deps_var) gcctestdir2-r/ld
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ld2_r_LDADD = libgold-2-r.o $(ldadd_var)
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ld2_r_LDFLAGS = -Bgcctestdir2-r/
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bootstrap-test-r: ld2-r
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rm -f $@
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echo "#!/bin/sh" > $@
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echo "cmp ld1-r ld2-r" > $@
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chmod +x $@
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check_PROGRAMS = ld1 ld2 ld1-r ld2-r
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TESTS = bootstrap-test bootstrap-test-r
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endif
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endif
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