As reported, libtool -export-symbols-regex doesn't work on Solaris
when using GNU ld instead of Sun ld, libtool just always assumes Sun ld.
As I'm unsure what is the maintainance status of libtool right now,
this patch solves it on the lto-plugin side instead, tests at configure time
similar way how libssp and other target libraries test for symbol versioning
(except omitting the symbol version because we just want one GLOBAL symbol
and rest of them LOCAL), and will use the current way of
-export-symbols-regex onload as fallback when this doesn't work.
2022-03-22 Jakub Jelinek <jakub@redhat.com>
PR lto/102426
lto-plugin/
* configure.ac (LTO_PLUGIN_USE_SYMVER, LTO_PLUGIN_USE_SYMVER_GNU,
LTO_PLUGIN_USE_SYMVER_SUN): New test for symbol versioning support.
* Makefile.am (version_arg, version_dep): Set conditionally based
on LTO_PLUGIN_USE_SYMVER*.
(liblto_plugin_la_LDFLAGS): Use $(version_arg) instead of
-export-symbols-regex onload.
(liblto_plugin_la_DEPENDENCIES): Depend on $(version_dep).
* lto-plugin.map: New file.
* configure: Regenerated.
* Makefile.in: Regenerated.
So right now liblto_plugin.so exports many libiberty symbols and
simple_object file symbols but really it just needs to export onload.
This fixes the problem by using "-export-symbols-regex onload" on
the libtool link line.
lto-plugin/ChangeLog:
PR lto/49664
* Makefile.am: Export only onload.
* Makefile.in: Regenerate.
This is an analogous option to --bootstrap-asan to configure. It allows
bootstrapping GCC using HWASAN.
For the same reasons as for ASAN we have to avoid using the HWASAN
sanitizer when compiling libiberty and the lto-plugin.
Also add a function to query whether -fsanitize=hwaddress has been
passed.
ChangeLog:
* configure: Regenerate.
* configure.ac: Add --bootstrap-hwasan option.
config/ChangeLog:
* bootstrap-hwasan.mk: New file.
gcc/ChangeLog:
* doc/install.texi: Document new option.
libiberty/ChangeLog:
* configure: Regenerate.
* configure.ac: Avoid using sanitizer.
lto-plugin/ChangeLog:
* Makefile.am: Avoid using sanitizer.
* Makefile.in: Regenerate.
GCC on Linux already uses liblto_plugin.so directly without
the libtool version suffix, adjust windows GCC to do the same.
gcc/ChangeLog:
* config.host: Adjust plugin name for Windows.
lto-plugin/ChangeLog:
* Makefile.am: drop versioning from libtool completely.
* Makefile.in: regenerate.
Since ld is Intel CET enabled on Intel CET enabled host, dlopen fails on
liblto_plugin.so if it isn't Intel CET enabled. Add GCC_CET_HOST_FLAGS
to cet.m4, use it in libiberty and lto-plugin to always enable Intel
CET in liblto_plugin.so on Intel CET enabled host.
On Linux/x86 host, enable Intel CET by default if assembler and compiler
support Intel CET so that the generated liblto_plugin.so can be used on
both CET and non-CET machines. It is an error to disable Intel CET in
liblto_plugin.so on Intel CET enabled host.
config/
PR bootstrap/94739
* cet.m4 (GCC_CET_HOST_FLAGS): New.
libiberty/
PR bootstrap/94739
* Makefile.in (COMPILE.c): Add @CET_HOST_FLAGS@.
(configure_deps): Add $(srcdir)/../config/cet.m4 and
$(srcdir)/../config/enable.m4.
* aclocal.m4: Include ../config/cet.m4 and ../config/enable.m4.
* configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and
AC_SUBST(CET_HOST_FLAGS).
* configure: Regenerated.
lto-plugin/
PR bootstrap/94739
* Makefile.am (AM_CFLAGS): Add $(CET_HOST_FLAGS).
* configure.ac: Add GCC_CET_HOST_FLAGS(CET_HOST_FLAGS) and
AC_SUBST(CET_HOST_FLAGS).
* Makefile.in: Regenerated.
* aclocal.m4: Likewise.
* configure: Likewise.
PR other/79046
* configure: Regenerated.
config/
* acx.m4 (GCC_BASE_VER): New m4 function.
(ACX_TOOL_DIRS): Require GCC_BASE_VER, for
--with-gcc-major-version-only use just major number from BASE-VER.
gcc/
* configure.ac: Add GCC_BASE_VER.
* Makefile.in (version): Use @get_gcc_base_ver@ instead of cat to get
version from BASE-VER file.
(CFLAGS-gcc.o): Add -DBASEVER=$(BASEVER_s).
(gcc.o): Depend on $(BASEVER).
* common.opt (dumpfullversion): New option.
* gcc.c (driver_handle_option): Handle OPT_dumpfullversion.
* doc/invoke.texi: Document -dumpfullversion.
* doc/install.texi: Document --with-gcc-major-version-only.
* configure: Regenerated.
libatomic/
* configure.ac: Add GCC_BASE_VER.
* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
get version from BASE-VER file.
* testsuite/Makefile.in: Regenerated.
* configure: Regenerated.
* Makefile.in: Regenerated.
libgomp/
* configure.ac: Add GCC_BASE_VER.
* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
get version from BASE-VER file.
* testsuite/Makefile.in: Regenerated.
* configure: Regenerated.
* Makefile.in: Regenerated.
libgcc/
* configure.ac: Add GCC_BASE_VER.
* Makefile.in (version): Use @get_gcc_base_ver@ instead of cat to get
version from BASE-VER file.
* configure: Regenerated.
libssp/
* configure.ac: Add GCC_BASE_VER.
* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
get version from BASE-VER file.
* configure: Regenerated.
* Makefile.in: Regenerated.
liboffloadmic/
* configure.ac: Add GCC_BASE_VER.
* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
get version from BASE-VER file.
* aclocal.m4: Include ../config/acx.m4.
* configure: Regenerated.
* Makefile.in: Regenerated.
libquadmath/
* configure.ac: Add GCC_BASE_VER.
* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
get version from BASE-VER file.
* configure: Regenerated.
* Makefile.in: Regenerated.
libmpx/
* configure.ac: Add GCC_BASE_VER.
* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
get version from BASE-VER file.
* configure: Regenerated.
* Makefile.in: Regenerated.
libada/
* configure.ac: Add GCC_BASE_VER.
* Makefile.in (version): Use @get_gcc_base_ver@ instead of cat to get
version from BASE-VER file.
* configure: Regenerated.
lto-plugin/
* configure.ac: Add GCC_BASE_VER.
* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
get version from BASE-VER file.
* configure: Regenerated.
* Makefile.in: Regenerated.
libitm/
* configure.ac: Add GCC_BASE_VER.
* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
get version from BASE-VER file.
* testsuite/Makefile.in: Regenerated.
* configure: Regenerated.
* Makefile.in: Regenerated.
fixincludes/
* configure.ac: Add GCC_BASE_VER.
* Makefile.in (gcc_version): Use @get_gcc_base_ver@ instead of cat to
get version from BASE-VER file.
* configure: Regenerated.
libcilkrts/
* configure.ac: Add GCC_BASE_VER.
* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
get version from BASE-VER file.
* aclocal.m4: Include ../config/acx.m4.
* configure: Regenerated.
* Makefile.in: Regenerated.
libcc1/
* configure.ac: Add GCC_BASE_VER. For --with-gcc-major-version-only
use just major number from BASE-VER.
* configure: Regenerated.
* Makefile.in: Regenerated.
libobjc/
* configure.ac: Add GCC_BASE_VER.
* Makefile.in (gcc_version): Use @get_gcc_base_ver@ instead of cat to
get version from BASE-VER file.
* configure: Regenerated.
libstdc++-v3/
* configure.ac: Add GCC_BASE_VER.
* fragment.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
get version from BASE-VER file.
* po/Makefile.in: Regenerated.
* libsupc++/Makefile.in: Regenerated.
* testsuite/Makefile.in: Regenerated.
* src/Makefile.in: Regenerated.
* configure: Regenerated.
* Makefile.in: Regenerated.
* include/Makefile.in: Regenerated.
* doc/Makefile.in: Regenerated.
* python/Makefile.in: Regenerated.
* src/c++11/Makefile.in: Regenerated.
* src/c++98/Makefile.in: Regenerated.
* src/filesystem/Makefile.in: Regenerated.
libvtv/
* configure.ac: Add GCC_BASE_VER.
* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
get version from BASE-VER file.
* testsuite/Makefile.in: Regenerated.
* configure: Regenerated.
* Makefile.in: Regenerated.
libsanitizer/
* configure.ac: Add GCC_BASE_VER.
* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
get version from BASE-VER file.
* libbacktrace/Makefile.in: Regenerated.
* interception/Makefile.in: Regenerated.
* asan/Makefile.in: Regenerated.
* ubsan/Makefile.in: Regenerated.
* configure: Regenerated.
* sanitizer_common/Makefile.in: Regenerated.
* lsan/Makefile.in: Regenerated.
* Makefile.in: Regenerated.
* tsan/Makefile.in: Regenerated.
libgfortran/
* configure.ac: Add GCC_BASE_VER.
* Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
get version from BASE-VER file.
* configure: Regenerated.
* Makefile.in: Regenerated.
From-SVN: r244521
* configure: Regenerate.
* configure.ac (--enable-as-accelerator-for)
(--enable-offload-targets): New configure options.
gcc/
* Makefile.in (real_target_noncanonical, accel_dir_suffix)
(enable_as_accelerator): New variables substituted by configure.
(libsubdir, libexecsubdir, unlibsubdir): Tweak for the possibility of
being configured as an offload compiler.
(DRIVER_DEFINES): Pass new defines DEFAULT_REAL_TARGET_MACHINE and
ACCEL_DIR_SUFFIX.
(install-cpp, install-common, install_driver, install-gcc-ar): Do not
install for the offload compiler.
* config.in: Regenerate.
* configure: Regenerate.
* configure.ac (real_target_noncanonical, accel_dir_suffix)
(enable_as_accelerator): Compute new variables.
(ACCEL_COMPILER): Define if the compiler is built as the accel compiler.
(OFFLOAD_TARGETS): List of target names suitable for offloading.
(ENABLE_OFFLOADING): Define if list of offload targets is not empty.
gcc/cp/
* Make-lang.in (c++.install-common): Do not install for the offload
compiler.
gcc/doc/
* install.texi (Options specification): Document
--enable-as-accelerator-for and --enable-offload-targets.
gcc/fortran/
* Make-lang.in (fortran.install-common): Do not install for the offload
compiler.
libgcc/
* Makefile.in (crtoffloadbegin$(objext)): New rule.
(crtoffloadend$(objext)): Likewise.
* configure: Regenerate.
* configure.ac (accel_dir_suffix): Compute new variable.
(extra_parts): Add crtoffloadbegin.o and crtoffloadend.o
if enable_offload_targets is not empty.
* offloadstuff.c: New file.
libgomp/
* config.h.in: Regenerate.
* configure: Regenerate.
* configure.ac: Check for libdl, required for plugin support.
(PLUGIN_SUPPORT): Define if plugins are supported.
(enable_offload_targets): Support Intel MIC targets.
(OFFLOAD_TARGETS): List of target names suitable for offloading.
lto-plugin/
* Makefile.am (libexecsubdir): Tweak for the possibility of being
configured for offload compiler.
(accel_dir_suffix, real_target_noncanonical): New variables substituted
by configure.
* Makefile.in: Regenerate.
* configure: Regenerate.
* configure.ac (accel_dir_suffix, real_target_noncanonical): Compute new
variables.
Co-Authored-By: Andrey Turetskiy <andrey.turetskiy@intel.com>
Co-Authored-By: Ilya Verbin <ilya.verbin@intel.com>
Co-Authored-By: Thomas Schwinge <thomas@codesourcery.com>
From-SVN: r217485
PR bootstrap/62260
* Makefile.am (gcc_build_dir): Set to @gcc_build_dir@.
* configure.ac (gcc_build_dir): Set and AC_SUBST according to
$host_subdir.
* Makefile.in: Regenerated.
* configure: Likewise.
From-SVN: r214524
* configure.ac (ac_lto_plugin_ldflags): Set to -Wc,-static-libgcc
for gcc.
* configure: Regenerate.
* Makefile.am (AM_LDFLAGS): New variable.
(liblto_plugin_la_LDFLAGS): Add it.
* Makefile.in: Regenerate.
From-SVN: r208614
2011-02-07 Kai Tietz <kai.tietz@onevision.com>
PR lto/47225
* Makefile.am (Wc): New helper for encoding -Wc,.
(liblto_plugin_la_LIBADD): Use Wc for libiberty library.
(liblto_plugin_la_DEPENDENCIES): Special case pic libiberty.
* Makefile.in: Regenerated.
From-SVN: r169900
2011-02-07 Kai Tietz <kai.tietz@onevision.com>
PR lto/47225
* Makefile.am (Wl): New helper for encoding -Wl,.
(liblto_plugin_la_LIBADD): Use -Wl for libiberty library.
* Makefile.in: Regenerated.
From-SVN: r169877
ChangeLog:
2010-11-03 Ian Lance Taylor <iant@google.com>
Dave Korn <dave.korn.cygwin@gmail.com>
PR lto/46273
* configure.ac: Remove libelf tests. Build lto-plugin on ELF always
and on other supported platforms whenever LTO is enabled.
* configure: Rebuild.
gcc/ChangeLog:
2010-11-03 Ian Lance Taylor <iant@google.com>
PR lto/46273
* gcc/config.gcc: Don't set lto_binary_reader.
* doc/install.texi (Prerequisites): Remove libelf paragraphs.
(Configuration): Mention --disable-lto. Remove --with-libelf
paragraph.
lto-plugin/ChangeLog:
2010-11-03 Dave Korn <dave.korn.cygwin@gmail.com>
PR lto/46273
* lto-plugin.h: Delete.
* lto-plugin-elf.c: Likewise.
* lto-plugin-coff.c: Likewise.
* configure.ac: Don't use libelf, don't source config.gcc.
(LIBELFLIBS): Delete.
(LIBELFINC): Delete.
(LTO_FORMAT): Delete.
(SYM_STYLE): Add AC_DEFINE var, set based on $target.
(config.h): Add AC_CONFIG_HEADERS directive.
* Makefile.am (LIBELFLIBS): Delete.
(LIBELFINC): Delete.
(LTO_FORMAT): Delete.
(DEFS): Import.
(AM_CPPFLAGS): Use it. Don't use LIBELFINC.
(liblto_plugin_la_SOURCES): Don't use LTO_FORMAT, don't include
any object-format-specific source file in the link.
(liblto_plugin_la_LIBADD): Don't use LIBELFLIBS.
* config.h.in: Generate.
* configure: Regenerate.
* Makefile.in: Likewise.
* lto-plugin.c (O_BINARY): Definition moved here from lto-plugin.h.
(LTO_SEGMENT_NAME): New definition.
(LTO_SECTION_PREFIX): Definition moved here from lto-plugin.h.
(LTO_SECTION_PREFIX_LEN): New definition.
(struct sym_aux): Struct definition moved here from lto-plugin.h.
(struct plugin_symtab): Likewise.
(struct plugin_objfile): Likewise.
(struct plugin_objfile): New struct def.
(enum symbol_style): New enum type.
(add_symbols): Make static.
(claimed_files): Likewise.
(num_claimed_files): Likewise.
(sym_style): New global.
(check): Make static.
(parse_table_entry): Likewise. Respect sym_style when extracting
symbol from symtab entry.
(translate): Make static.
(resolve_conflicts): Likewise.
(process_symtab): New function, per-section callback version of
old object-format-specific handling from deleted lto-plugin-elf.c.
(claim_file_handler): Convert ELF-specific version from deleted
lto-plugin-elf.c to simple_object interface and move here.
(process_options): Allow new '-sym-style=' option.
(onload): Don't call deleted onload_format_checks hook.
From-SVN: r166233
ChangeLog:
2010-10-07 Dave Korn <dave.korn.cygwin@gmail.com>
* configure.ac (build_lto_plugin): New shell variable.
(--enable-lto): Turn on by default for all non-ELF platforms that
have had LTO support added so far. Set build_lto_plugin appropriately
for both ELF and non-ELF.
(configdirs): Add lto-plugin or not based on build_lto_plugin.
* configure: Regenerate.
gcc/ChangeLog:
2010-10-07 Dave Korn <dave.korn.cygwin@gmail.com>
* config.host (host_lto_plugin_soname): New shell variable.
* configure.ac (LTOPLUGINSONAME): Add an AC_DEFINE for the above.
* config.in: Regenerate.
* configure: Regenerate.
* gcc.c (main): Use LTOPLUGINSONAME instead of hard-coding name of
LTO plugin shared library.
lto-plugin/ChangeLog:
2010-10-07 Dave Korn <dave.korn.cygwin@gmail.com>
* configure.ac: Source config.gcc to determine lto_binary_reader.
(LTO_FORMAT): New AC_SUBST variable inferred from lto_binary_reader.
* Makefile.am (LTO_FORMAT): Import.
(liblto_plugin_la_SOURCES): Add object format dependent module
defined by LTO_FORMAT.
(liblto_plugin_la_LIBADD): Allow for both PIC and non-PIC libiberty,
and work around libtool warning.
* configure: Regenerate.
* Makefile.in: Likewise.
* lto-plugin.c (struct sym_aux): Move to new lto-plugin.h.
(struct sym_aux): Likewise.
(struct plugin_symtab): Likewise.
(struct plugin_file_info): Likewise.
(LTO_SECTION_PREFIX): Likewise.
(add_symbols): Make non-static.
(claimed_files): Likewise.
(num_claimed_files): Likewise.
(check): Likewise.
(parse_table_entry): Likewise.
(translate): Likewise.
(resolve_conflicts): Likewise.
(process_symtab): Move to new lto-plugin-elf.c object format dependent
source file.
(claim_file_handler): Likewise, and make non-static.
(onload): Call new onload_format_checks function.
* lto-plugin.h: New file.
(LTO_SECTION_PREFIX): Move here.
(struct sym_aux): Likewise.
(struct plugin_symtab): Likewise.
(struct plugin_file_info): Likewise.
(claim_file_handler): Add new function prototype.
(onload_format_checks): Likewise.
(check): Declare extern.
(translate): Likewise.
(parse_table_entry): Likewise.
(resolve_conflicts): Likewise.
(add_symbols): Likewise.
(claimed_files): Likewise.
(num_claimed_files): Likewise.
* lto-plugin-elf.c (process_symtab): Move here.
(claim_file_handler): Likewise, and make non-static.
(onload_format_checks): New function factored out from onload.
* lto-plugin-coff.c (claim_file_handler): New function stub.
(onload_format_checks): Likewise.
From-SVN: r165133
2010-07-22 Richard Guenther <rguenther@suse.de>
lto-plugin/
* Makefile.am: New copy_lto_plugin rule to install the plugin
into ../gcc.
* Makefile.in: Regenerated.
From-SVN: r162412
2009-10-13 Richard Guenther <rguenther@suse.de>
* Makefile.am (liblto_plugin_la_LIBADD): Link against the
correct libiberty.
* Makefile.in: Regenerated.
From-SVN: r152698
