binutils-gdb/Makefile.def
Indu Bhagat cf0e0a0ba9 bfd: linker: merge .sframe sections
The linker merges all the input .sframe sections.  When merging, the
linker verifies that all the input .sframe sections have the same
abi/arch.

The linker uses libsframe library to perform key actions on the
.sframe sections - decode, read, and create output data.  This
implies buildsystem changes to make and install libsframe before
libbfd.

The linker places the output .sframe section in a new segment of its
own: PT_GNU_SFRAME.  A new segment is not added, however, if the
generated .sframe section is empty.

When a section is discarded from the final link, the corresponding
entries in the .sframe section for those functions are also deleted.

The linker sorts the SFrame FDEs on start address by default and sets
the SFRAME_F_FDE_SORTED flag in the .sframe section.

This patch also adds support for generation of SFrame unwind
information for the .plt* sections on x86_64.  SFrame unwind info is
generated for IBT enabled PLT, lazy/non-lazy PLT.

The existing linker option --no-ld-generated-unwind-info has been
adapted to include the control of whether .sframe unwind information
will be generated for the linker generated sections like PLT.

Changes to the linker script have been made as necessary.

ChangeLog:

	* Makefile.def: Add install dependency on libsframe for libbfd.
	* Makefile.in: Regenerated.
	* bfd/Makefile.am: Add elf-sframe.c
	* bfd/Makefile.in: Regenerated.
	* bfd/bfd-in2.h (SEC_INFO_TYPE_SFRAME): Regenerated.
	* bfd/configure: Regenerate.
	* bfd/configure.ac: Add elf-sframe.lo.
	* bfd/elf-bfd.h (struct sframe_func_bfdinfo): New struct.
	(struct sframe_dec_info): Likewise.
	(struct sframe_enc_info): Likewise.
	(struct elf_link_hash_table): New member for encoded .sframe
	object.
	(struct output_elf_obj_tdata): New member.
	(elf_sframe): New access macro.
	(_bfd_elf_set_section_sframe): New declaration.
	* bfd/elf.c (get_segment_type): Handle new segment
	PT_GNU_SFRAME.
	(bfd_section_from_phdr): Likewise.
	(get_program_header_size): Likewise.
	(_bfd_elf_map_sections_to_segments): Likewise.
	* bfd/elf64-x86-64.c (elf_x86_64_link_setup_gnu_properties): Add
	contents to the .sframe sections or .plt* entries.
	* bfd/elflink.c (elf_section_ignore_discarded_relocs): Handle
	SEC_INFO_TYPE_SFRAME.
	(_bfd_elf_default_action_discarded): Handle .sframe section.
	(elf_link_input_bfd): Merge .sframe section.
	(bfd_elf_final_link): Write the output .sframe section.
	(bfd_elf_discard_info): Handle discarding .sframe section.
	* bfd/elfxx-x86.c (_bfd_x86_elf_size_dynamic_sections): Create
	.sframe section for .plt and .plt.sec.
	(_bfd_x86_elf_finish_dynamic_sections): Handle .sframe from
	.plt* sections.
	* bfd/elfxx-x86.h (PLT_SFRAME_FDE_START_OFFSET): New
	definition.
	(SFRAME_PLT0_MAX_NUM_FRES): Likewise.
	(SFRAME_PLTN_MAX_NUM_FRES): Likewise.
	(struct elf_x86_sframe_plt): New structure.
	(struct elf_x86_link_hash_table): New member.
	(struct elf_x86_init_table): New members for .sframe
	creation.
	* bfd/section.c: Add new definition SEC_INFO_TYPE_SFRAME.
	* binutils/readelf.c (get_segment_type): Handle new segment
	PT_GNU_SFRAME.
	* ld/ld.texi: Update documentation for
	--no-ld-generated-unwind-info.
	* ld/scripttempl/elf.sc: Support .sframe sections.
	* ld/Makefile.am (TESTSFRAMELIB): Use it.
	(check-DEJAGNU): Likewise.
	* ld/Makefile.in: Regenerated.
	* ld/configure.ac (TESTSFRAMELIB): Set to the .so or .a like TESTBFDLIB.
	* ld/configure: Regenerated.
	* bfd/elf-sframe.c: New file.

include/ChangeLog:

	* elf/common.h (PT_GNU_SFRAME): New definition.
	* elf/internal.h (struct elf_segment_map): Handle new segment
	type PT_GNU_SFRAME.

ld/testsuite/ChangeLog:

	* ld/testsuite/ld-bootstrap/bootstrap.exp: Add SFRAMELIB.
	* ld/testsuite/ld-aarch64/aarch64-elf.exp: Add new test
	  sframe-simple-1.
	* ld/testsuite/ld-aarch64/sframe-bar.s: New file.
	* ld/testsuite/ld-aarch64/sframe-foo.s: Likewise.
	* ld/testsuite/ld-aarch64/sframe-simple-1.d: Likewise.
	* ld/testsuite/ld-sframe/sframe-empty.d: New test.
	* ld/testsuite/ld-sframe/sframe-empty.s: New file.
	* ld/testsuite/ld-sframe/sframe.exp: New testsuite.
	* ld/testsuite/ld-x86-64/sframe-bar.s: New file.
	* ld/testsuite/ld-x86-64/sframe-foo.s: Likewise.
	* ld/testsuite/ld-x86-64/sframe-simple-1.d: Likewise.
	* ld/testsuite/ld-x86-64/sframe-plt-1.d: Likewise.
	* ld/testsuite/ld-x86-64/sframe-simple-1.d: Likewise.
	* ld/testsuite/ld-x86-64/x86-64.exp: Add new tests -
	  sframe-simple-1, sframe-plt-1.
	* ld/testsuite/lib/ld-lib.exp: Add new proc to check if
	  assembler supports SFrame section.
	* ld/testsuite/ld-sframe/discard.d: New file.
	* ld/testsuite/ld-sframe/discard.ld: Likewise.
	* ld/testsuite/ld-sframe/discard.s: Likewise.
2022-11-15 15:49:47 -08:00

734 lines
33 KiB
Makefile

#! /usr/bin/autogen
AutoGen definitions Makefile.tpl;
// Makefile.in is generated from Makefile.tpl by 'autogen Makefile.def'.
// This file was originally written by Nathanael Nerode.
//
// Copyright 2002-2021 Free Software Foundation
//
// This file is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
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dependencies = { module=configure-gdb; on=all-intl; };
dependencies = { module=configure-gdb; on=configure-sim; };
dependencies = { module=configure-gdb; on=all-bfd; };
dependencies = { module=configure-gdb; on=all-gnulib; };
dependencies = { module=configure-gdb; on=all-gdbsupport; };
// Depend on all-libiconv so that configure checks for iconv
// functions will work.
dependencies = { module=configure-gdb; on=all-libiconv; };
dependencies = { module=all-gdb; on=all-libiberty; };
dependencies = { module=all-gdb; on=all-libiconv; };
dependencies = { module=all-gdb; on=all-gnulib; };
dependencies = { module=all-gdb; on=all-gdbsupport; };
dependencies = { module=all-gdb; on=all-opcodes; };
dependencies = { module=all-gdb; on=all-readline; };
dependencies = { module=all-gdb; on=all-build-bison; };
dependencies = { module=all-gdb; on=all-sim; };
dependencies = { module=all-gdb; on=all-libdecnumber; };
dependencies = { module=all-gdb; on=all-libtermcap; };
dependencies = { module=all-gdb; on=all-libctf; };
dependencies = { module=all-gdb; on=all-libbacktrace; };
// Host modules specific to gdbserver.
dependencies = { module=configure-gdbserver; on=all-gnulib; };
dependencies = { module=all-gdbserver; on=all-gdbsupport; };
dependencies = { module=all-gdbserver; on=all-gnulib; };
dependencies = { module=all-gdbserver; on=all-libiberty; };
dependencies = { module=configure-libgui; on=configure-tcl; };
dependencies = { module=configure-libgui; on=configure-tk; };
dependencies = { module=all-libgui; on=all-tcl; };
dependencies = { module=all-libgui; on=all-tk; };
dependencies = { module=all-libgui; on=all-itcl; };
dependencies = { module=configure-gdbsupport; on=configure-gnulib; };
dependencies = { module=configure-gdbsupport; on=configure-intl; };
dependencies = { module=all-gdbsupport; on=all-gnulib; };
dependencies = { module=all-gdbsupport; on=all-intl; };
// Host modules specific to binutils.
// build libsframe before bfd for encoder/decoder support for linking
// SFrame sections
dependencies = { module=configure-bfd; on=configure-libiberty; hard=true; };
dependencies = { module=configure-bfd; on=configure-intl; };
dependencies = { module=all-bfd; on=all-libiberty; };
dependencies = { module=all-bfd; on=all-intl; };
dependencies = { module=all-bfd; on=all-zlib; };
dependencies = { module=all-bfd; on=all-libsframe; };
dependencies = { module=configure-opcodes; on=configure-libiberty; hard=true; };
dependencies = { module=all-opcodes; on=all-libiberty; };
// We must build gas before binutils, gprof, ld and gold to avoid race
// condition in the prev-gcc/as script during bootstrap of combined tree
// with GCC and binutils. See PR gas/14899 for details.
dependencies = { module=configure-binutils; on=configure-intl; };
dependencies = { module=all-binutils; on=all-libiberty; };
dependencies = { module=all-binutils; on=all-opcodes; };
dependencies = { module=all-binutils; on=all-bfd; };
dependencies = { module=all-binutils; on=all-build-flex; };
dependencies = { module=all-binutils; on=all-build-bison; };
dependencies = { module=all-binutils; on=all-intl; };
dependencies = { module=all-binutils; on=all-gas; };
dependencies = { module=all-binutils; on=all-libctf; };
dependencies = { module=all-ld; on=all-libctf; };
dependencies = { module=all-binutils; on=all-libsframe; };
// We put install-opcodes before install-binutils because the installed
// binutils might be on PATH, and they might need the shared opcodes
// library.
dependencies = { module=install-binutils; on=install-opcodes; };
dependencies = { module=install-strip-binutils; on=install-strip-opcodes; };
// Likewise for ld, libctf, and bfd.
dependencies = { module=install-bfd; on=install-libsframe; };
dependencies = { module=install-libctf; on=install-bfd; };
dependencies = { module=install-ld; on=install-bfd; };
dependencies = { module=install-ld; on=install-libctf; };
dependencies = { module=install-strip-libctf; on=install-strip-bfd; };
dependencies = { module=install-strip-ld; on=install-strip-bfd; };
dependencies = { module=install-strip-ld; on=install-strip-libctf; };
// libopcodes depends on libbfd
dependencies = { module=configure-opcodes; on=configure-bfd; hard=true; };
dependencies = { module=install-opcodes; on=install-bfd; };
dependencies = { module=install-strip-opcodes; on=install-strip-bfd; };
dependencies = { module=configure-gas; on=configure-intl; };
dependencies = { module=all-gas; on=all-libiberty; };
dependencies = { module=all-gas; on=all-opcodes; };
dependencies = { module=all-gas; on=all-bfd; };
dependencies = { module=all-gas; on=all-intl; };
dependencies = { module=configure-gprof; on=configure-intl; };
dependencies = { module=all-gprof; on=all-libiberty; };
dependencies = { module=all-gprof; on=all-bfd; };
dependencies = { module=all-gprof; on=all-opcodes; };
dependencies = { module=all-gprof; on=all-intl; };
dependencies = { module=all-gprof; on=all-gas; };
dependencies = { module=configure-gprofng; on=configure-intl; };
dependencies = { module=all-gprofng; on=all-libiberty; };
dependencies = { module=all-gprofng; on=all-bfd; };
dependencies = { module=all-gprofng; on=all-opcodes; };
dependencies = { module=all-gprofng; on=all-intl; };
dependencies = { module=all-gprofng; on=all-gas; };
dependencies = { module=install-gprofng; on=install-opcodes; };
dependencies = { module=install-gprofng; on=install-bfd; };
dependencies = { module=configure-ld; on=configure-intl; };
dependencies = { module=all-ld; on=all-libiberty; };
dependencies = { module=all-ld; on=all-bfd; };
dependencies = { module=all-ld; on=all-opcodes; };
dependencies = { module=all-ld; on=all-build-bison; };
dependencies = { module=all-ld; on=all-build-flex; };
dependencies = { module=all-ld; on=all-intl; };
dependencies = { module=all-ld; on=all-gas; };
dependencies = { module=all-ld; on=all-binutils; };
dependencies = { module=install-ld; on=install-gold; };
dependencies = { module=install-strip-ld; on=install-strip-gold; };
dependencies = { module=configure-gold; on=configure-intl; };
dependencies = { module=all-gold; on=all-libiberty; };
dependencies = { module=all-gold; on=all-intl; };
dependencies = { module=all-gold; on=all-bfd; };
dependencies = { module=all-gold; on=all-build-bison; };
dependencies = { module=all-gold; on=all-gas; };
dependencies = { module=check-gold; on=all-binutils; };
dependencies = { module=check-gold; on=all-gas; };
dependencies = { module=configure-opcodes; on=configure-intl; };
dependencies = { module=all-opcodes; on=all-bfd; };
dependencies = { module=all-opcodes; on=all-libiberty; };
dependencies = { module=all-opcodes; on=all-intl; };
// Other host modules in the 'src' repository.
dependencies = { module=all-dejagnu; on=all-tcl; };
dependencies = { module=all-dejagnu; on=all-expect; };
dependencies = { module=all-dejagnu; on=all-tk; };
dependencies = { module=configure-expect; on=configure-tcl; };
dependencies = { module=configure-expect; on=configure-tk; };
dependencies = { module=all-expect; on=all-tcl; };
dependencies = { module=all-expect; on=all-tk; };
// We put install-tcl before install-itcl because itcl wants to run a
// program on installation which uses the Tcl libraries.
dependencies = { module=configure-itcl; on=configure-tcl; };
dependencies = { module=configure-itcl; on=configure-tk; };
dependencies = { module=all-itcl; on=all-tcl; };
dependencies = { module=all-itcl; on=all-tk; };
dependencies = { module=install-itcl; on=install-tcl; };
dependencies = { module=install-strip-itcl; on=install-strip-tcl; };
dependencies = { module=configure-tk; on=configure-tcl; };
dependencies = { module=all-tk; on=all-tcl; };
dependencies = { module=all-sid; on=all-libiberty; };
dependencies = { module=all-sid; on=all-bfd; };
dependencies = { module=all-sid; on=all-opcodes; };
dependencies = { module=all-sid; on=all-tcl; };
dependencies = { module=all-sid; on=all-tk; };
dependencies = { module=install-sid; on=install-tcl; };
dependencies = { module=install-strip-sid; on=install-strip-tcl; };
dependencies = { module=install-sid; on=install-tk; };
dependencies = { module=install-strip-sid; on=install-strip-tk; };
dependencies = { module=configure-sim; on=all-gnulib; };
dependencies = { module=configure-sim; on=configure-intl; };
dependencies = { module=all-sim; on=all-intl; };
dependencies = { module=all-sim; on=all-libiberty; };
dependencies = { module=all-sim; on=all-bfd; };
dependencies = { module=all-sim; on=all-opcodes; };
dependencies = { module=configure-sim; on=all-readline; };
// Other host modules.
dependencies = { module=all-fastjar; on=all-zlib; };
dependencies = { module=all-fastjar; on=all-build-texinfo; };
dependencies = { module=all-fastjar; on=all-libiberty; };
dependencies = { module=all-libctf; on=all-libiberty; hard=true; };
dependencies = { module=all-libctf; on=all-bfd; };
dependencies = { module=all-libctf; on=all-zlib; };
// So that checking for ELF support in BFD from libctf configure is possible.
dependencies = { module=configure-libctf; on=all-bfd; };
dependencies = { module=configure-libctf; on=all-intl; };
dependencies = { module=configure-libctf; on=all-zlib; };
dependencies = { module=configure-libctf; on=all-libiconv; };
dependencies = { module=check-libctf; on=all-ld; };
// The Makefiles in gdb and gdbserver pull in a file that configure
// generates in the gnulib directory, so distclean gnulib only after
// gdb and gdbserver.
dependencies = { module=distclean-gnulib; on=distclean-gdb; };
dependencies = { module=distclean-gnulib; on=distclean-gdbserver; };
// Warning, these are not well tested.
dependencies = { module=all-bison; on=all-intl; };
dependencies = { module=all-bison; on=all-build-texinfo; };
dependencies = { module=all-flex; on=all-build-bison; };
dependencies = { module=all-flex; on=all-intl; };
dependencies = { module=all-flex; on=all-m4; };
dependencies = { module=all-flex; on=all-build-texinfo; };
dependencies = { module=all-m4; on=all-intl; };
dependencies = { module=all-m4; on=all-build-texinfo; };
// Target modules. These can also have dependencies on the language
// environment (e.g. on libstdc++). By default target modules depend
// on libgcc and newlib/libgloss.
lang_env_dependencies = { module=libitm; cxx=true; };
lang_env_dependencies = { module=libffi; cxx=true; };
lang_env_dependencies = { module=liboffloadmic; cxx=true; };
lang_env_dependencies = { module=newlib; no_c=true; };
lang_env_dependencies = { module=libgloss; no_c=true; };
lang_env_dependencies = { module=libgcc; no_gcc=true; no_c=true; };
// libiberty does not depend on newlib or libgloss because it must be
// built newlib on some targets (e.g. Cygwin). It still needs
// a dependency on libgcc for native targets to configure.
lang_env_dependencies = { module=libiberty; no_c=true; };
dependencies = { module=configure-target-fastjar; on=configure-target-zlib; };
dependencies = { module=all-target-fastjar; on=all-target-zlib; };
dependencies = { module=configure-target-libgo; on=configure-target-libffi; };
dependencies = { module=configure-target-libgo; on=all-target-libstdc++-v3; };
dependencies = { module=configure-target-libffi; on=all-target-libstdc++-v3; };
dependencies = { module=all-target-libgo; on=all-target-libbacktrace; };
dependencies = { module=all-target-libgo; on=all-target-libffi; };
dependencies = { module=all-target-libgo; on=all-target-libatomic; };
dependencies = { module=configure-target-libphobos; on=configure-target-libbacktrace; };
dependencies = { module=configure-target-libphobos; on=configure-target-zlib; };
dependencies = { module=all-target-libphobos; on=all-target-libbacktrace; };
dependencies = { module=all-target-libphobos; on=all-target-zlib; };
dependencies = { module=all-target-libphobos; on=all-target-libatomic; };
dependencies = { module=configure-target-libstdc++-v3; on=configure-target-libgomp; };
dependencies = { module=configure-target-liboffloadmic; on=configure-target-libgomp; };
dependencies = { module=configure-target-libsanitizer; on=all-target-libstdc++-v3; };
dependencies = { module=configure-target-libvtv; on=all-target-libstdc++-v3; };
// parallel_list.o and parallel_settings.o depend on omp.h, which is
// generated by the libgomp configure. Unfortunately, due to the use of
// recursive make, we can't be that specific.
dependencies = { module=all-target-libstdc++-v3; on=configure-target-libgomp; };
dependencies = { module=all-target-liboffloadmic; on=all-target-libgomp; };
dependencies = { module=install-target-libgo; on=install-target-libatomic; };
dependencies = { module=install-target-libgfortran; on=install-target-libquadmath; };
dependencies = { module=install-target-libgfortran; on=install-target-libgcc; };
dependencies = { module=install-target-libphobos; on=install-target-libatomic; };
dependencies = { module=install-target-libsanitizer; on=install-target-libstdc++-v3; };
dependencies = { module=install-target-libsanitizer; on=install-target-libgcc; };
dependencies = { module=install-target-libvtv; on=install-target-libstdc++-v3; };
dependencies = { module=install-target-libvtv; on=install-target-libgcc; };
dependencies = { module=install-target-liboffloadmic; on=install-target-libstdc++-v3; };
dependencies = { module=install-target-liboffloadmic; on=install-target-libgcc; };
dependencies = { module=install-target-libitm; on=install-target-libgcc; };
dependencies = { module=install-target-libobjc; on=install-target-libgcc; };
dependencies = { module=install-target-libstdc++-v3; on=install-target-libgcc; };
// Target modules in the 'src' repository.
lang_env_dependencies = { module=libtermcap; };
lang_env_dependencies = { module=rda; };
lang_env_dependencies = { module=winsup; };
dependencies = { module=all-target-libgloss; on=all-target-newlib; };
dependencies = { module=all-target-winsup; on=all-target-libtermcap; };
dependencies = { module=configure-target-newlib; on=all-binutils; };
dependencies = { module=configure-target-newlib; on=all-ld; };
dependencies = { module=configure-target-libgfortran; on=all-target-libquadmath; };
dependencies = { module=configure-target-libgfortran; on=all-target-libbacktrace; };
languages = { language=c; gcc-check-target=check-gcc; };
languages = { language=c++; gcc-check-target=check-c++;
lib-check-target=check-target-libstdc++-v3;
lib-check-target=check-target-libitm-c++;
lib-check-target=check-target-libgomp-c++; };
languages = { language=fortran; gcc-check-target=check-fortran;
lib-check-target=check-target-libquadmath;
lib-check-target=check-target-libgfortran;
lib-check-target=check-target-libgomp-fortran; };
languages = { language=ada; gcc-check-target=check-ada;
lib-check-target=check-target-libada; };
languages = { language=objc; gcc-check-target=check-objc;
lib-check-target=check-target-libobjc; };
languages = { language=obj-c++; gcc-check-target=check-obj-c++; };
languages = { language=go; gcc-check-target=check-go;
lib-check-target=check-target-libgo;
lib-check-target=check-gotools; };
languages = { language=d; gcc-check-target=check-d;
lib-check-target=check-target-libphobos; };
languages = { language=jit; gcc-check-target=check-jit; };
// Toplevel bootstrap
bootstrap_stage = { id=1 ; };
bootstrap_stage = {
id=2 ; prev=1 ;
bootstrap_target=bootstrap2 ; };
bootstrap_stage = {
id=3 ; prev=2 ; lean=1 ;
compare_target=compare ;
bootstrap_target=bootstrap ;
cleanstrap_target=cleanstrap ; };
bootstrap_stage = {
id=4 ; prev=3 ; lean=2 ;
compare_target=compare3 ;
bootstrap_target=bootstrap4 ; };
bootstrap_stage = {
id=profile ; prev=1 ; };
bootstrap_stage = {
id=train; prev=profile ; } ;
bootstrap_stage = {
id=feedback ; prev=train;
bootstrap_target=profiledbootstrap ; };
bootstrap_stage = {
id=autoprofile ; prev=1 ;
autoprofile="$$s/gcc/config/i386/$(AUTO_PROFILE)" ; };
bootstrap_stage = {
id=autofeedback ; prev=autoprofile ;
bootstrap_target=autoprofiledbootstrap ;
profile_data="PERF_DATA=perf.data" ; };