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2023-07-01Daily bump.GCC Administrator1-0/+4
2023-06-30Regenrate lto-plugin/Makefile.inMartin Jambor1-0/+1
Commit regenerated lto-plugin/Makefile.in in order to reflect changes introduction of --enable-host-pie. lto-plugin/ChangeLog: 2023-06-30 Martin Jambor <mjambor@suse.cz> * Makefile.in: Regenerate.
2023-06-23Daily bump.GCC Administrator1-0/+6
2023-06-22configure: Implement --enable-host-bind-nowMarek Polacek2-2/+29
As promised in the --enable-host-pie patch, this patch adds another configure option, --enable-host-bind-now, which adds -z now when linking the compiler executables in order to extend hardening. BIND_NOW with RELRO allows the GOT to be marked RO; this prevents GOT modification attacks. This option does not affect linking of target libraries; you can use LDFLAGS_FOR_TARGET=-Wl,-z,relro,-z,now to enable RELRO/BIND_NOW. With this patch: $ readelf -Wd cc1{,plus,obj,gm2} f951 lto1 cpp rust1 gnat1 | grep FLAGS 0x000000000000001e (FLAGS) BIND_NOW 0x000000006ffffffb (FLAGS_1) Flags: NOW PIE 0x000000000000001e (FLAGS) BIND_NOW 0x000000006ffffffb (FLAGS_1) Flags: NOW PIE 0x000000000000001e (FLAGS) BIND_NOW 0x000000006ffffffb (FLAGS_1) Flags: NOW PIE 0x000000000000001e (FLAGS) BIND_NOW 0x000000006ffffffb (FLAGS_1) Flags: NOW PIE 0x000000000000001e (FLAGS) BIND_NOW 0x000000006ffffffb (FLAGS_1) Flags: NOW PIE 0x000000000000001e (FLAGS) BIND_NOW 0x000000006ffffffb (FLAGS_1) Flags: NOW PIE 0x000000000000001e (FLAGS) BIND_NOW 0x000000006ffffffb (FLAGS_1) Flags: NOW PIE 0x000000000000001e (FLAGS) BIND_NOW 0x000000006ffffffb (FLAGS_1) Flags: NOW PIE 0x000000000000001e (FLAGS) BIND_NOW 0x000000006ffffffb (FLAGS_1) Flags: NOW PIE c++tools/ChangeLog: * configure.ac (--enable-host-bind-now): New check. * configure: Regenerate. gcc/ChangeLog: * configure.ac (--enable-host-bind-now): New check. Add -Wl,-z,now to LD_PICFLAG if --enable-host-bind-now. * configure: Regenerate. * doc/install.texi: Document --enable-host-bind-now. lto-plugin/ChangeLog: * configure.ac (--enable-host-bind-now): New check. Link with -z,now. * configure: Regenerate.
2023-05-12Daily bump.GCC Administrator1-0/+8
2023-05-11Implement LDPT_REGISTER_CLAIM_FILE_HOOK_V2 linker plugin hook [PR109128]Joseph Myers1-3/+28
This is one part of the fix for PR109128, along with a corresponding binutils's linker change. Without this patch, what happens in the linker, when an unused object in a .a file has offload data, is that elf_link_is_defined_archive_symbol calls bfd_link_plugin_object_p, which ends up calling the plugin's claim_file_handler, which then records the object as one with offload data. That is, the linker never decides to use the object in the first place, but use of this _p interface (called as part of trying to decide whether to use the object) results in the plugin deciding to use its offload data (and a consequent mismatch in the offload data present at runtime). The new hook allows the linker plugin to distinguish calls to claim_file_handler that know the object is being used by the linker (from ldmain.c:add_archive_element), from calls that don't know it's being used by the linker (from elf_link_is_defined_archive_symbol); in the latter case, the plugin should avoid recording the object as one with offload data. PR middle-end/109128 include/ * plugin-api.h (ld_plugin_claim_file_handler_v2) (ld_plugin_register_claim_file_v2) (LDPT_REGISTER_CLAIM_FILE_HOOK_V2): New. (struct ld_plugin_tv): Add tv_register_claim_file_v2. lto-plugin/ * lto-plugin.c (register_claim_file_v2): New. (claim_file_handler_v2): New. (claim_file_handler): Wrap claim_file_handler_v2. (onload): Handle LDPT_REGISTER_CLAIM_FILE_HOOK_V2.
2023-01-16Update copyright years.Jakub Jelinek1-1/+1
2022-11-24Daily bump.GCC Administrator1-0/+15
2022-11-22Revert "configure: Implement --enable-host-bind-now"Marek Polacek2-29/+2
This reverts commit 258d7149f92f19380c9f7763618d62408c064e60.
2022-11-22configure: Implement --enable-host-bind-nowMarek Polacek2-2/+29
As promised in the --enable-host-pie patch, this patch adds another configure option, --enable-host-bind-now, which adds -z now when linking the compiler executables in order to extend hardening. BIND_NOW with RELRO allows the GOT to be marked RO; this prevents GOT modification attacks. This option does not affect linking of target libraries; you can use LDFLAGS_FOR_TARGET=-Wl,-z,relro,-z,now to enable RELRO/BIND_NOW. c++tools/ChangeLog: * configure.ac (--enable-host-bind-now): New check. * configure: Regenerate. gcc/ChangeLog: * configure.ac (--enable-host-bind-now): New check. Add -Wl,-z,now to LD_PICFLAG if --enable-host-bind-now. * configure: Regenerate. * doc/install.texi: Document --enable-host-bind-now. lto-plugin/ChangeLog: * configure.ac (--enable-host-bind-now): New check. Link with -z,now. * configure: Regenerate.
2022-10-13Daily bump.GCC Administrator1-0/+4
2022-10-12regenerate configure filesMartin Liska1-2/+2
Needed after a recent change. gcc/ChangeLog: * configure: Regenerate. libatomic/ChangeLog: * configure: Regenerate. libbacktrace/ChangeLog: * configure: Regenerate. libcc1/ChangeLog: * configure: Regenerate. libffi/ChangeLog: * configure: Regenerate. libgfortran/ChangeLog: * configure: Regenerate. libgomp/ChangeLog: * configure: Regenerate. libitm/ChangeLog: * configure: Regenerate. libobjc/ChangeLog: * configure: Regenerate. liboffloadmic/ChangeLog: * configure: Regenerate. * plugin/configure: Regenerate. libphobos/ChangeLog: * configure: Regenerate. libquadmath/ChangeLog: * configure: Regenerate. libsanitizer/ChangeLog: * configure: Regenerate. libssp/ChangeLog: * configure: Regenerate. libstdc++-v3/ChangeLog: * configure: Regenerate. libvtv/ChangeLog: * configure: Regenerate. lto-plugin/ChangeLog: * configure: Regenerate. zlib/ChangeLog: * configure: Regenerate.
2022-10-12Daily bump.GCC Administrator1-0/+5
2022-10-11Generic configury support for shared libs on VxWorksOlivier Hainque1-0/+24
This change adds the configury bits to activate the build of shared libs on VxWorks ports configured with --enable-shared, for libraries variants where this is generally supported (rtp, code model !large - currently not compatible with -fPIC). Set lt_cv_deplibs_check_method in libtool.m4, so the build of libraries know how to establish dependencies. This is useful in configurations such as aarch64 where proper support of LSE relies on accurate dependency information between libstdc++ and libgcc_s to begin with. Regenerate configure scripts to reflect libtool.m4 change. 2022-10-09 Olivier Hainque <hainque@adacore.com> * libtool.m4 (*vxworks*): When enable_shared, set dynamic_linker and friends for rtp !large. Assume the linker has the required abilities and set lt_cv_deplibs_check_method. gcc/ * config.gcc (*vxworks*): Add t-slibgcc fragment if enable_shared. libgcc/ * config.host (*vxworks*): When enable_shared, add libgcc and crtstuff "shared" fragments for rtp except large code model. (aarch64*-wrs-vxworks7*): Remove t-slibgcc-libgcc from the list of fragments. 2022-10-09 Olivier Hainque <hainque@adacore.com> gcc/ * configure: Regenerate. libatomic/ * configure: Regenerate. libbacktrace/ * configure: Regenerate. libcc1/ * configure: Regenerate. libffi/ * configure: Regenerate. libgfortran/ * configure: Regenerate. libgomp/ * configure: Regenerate. libitm/ * configure: Regenerate. libobjc/ * configure: Regenerate. liboffloadmic/ * configure: Regenerate. liboffloadmic/ * plugin/configure: Regenerate. libphobos/ * configure: Regenerate. libquadmath/ * configure: Regenerate. libsanitizer/ * configure: Regenerate. libssp/ * configure: Regenerate. libstdc++-v3/ * configure: Regenerate. libvtv/ * configure: Regenerate. lto-plugin/ * configure: Regenerate. zlib/ * configure: Regenerate.
2022-08-02Daily bump.GCC Administrator1-0/+6
2022-08-01lto: replace $target with $host in configure.ac [PR106170]Martin Liska2-2/+2
PR lto/106170 lto-plugin/ChangeLog: * configure.ac: Replace $target with $host. * configure: Regenerate.
2022-07-15Daily bump.GCC Administrator1-0/+8
2022-07-14lto-plugin: use -pthread only for detected targetsMartin Liska4-6/+16
Use -pthread only if we are going to use pthread functionality. PR bootstrap/106156 lto-plugin/ChangeLog: * Makefile.am: Use ac_lto_plugin_extra_ldflags for AM_LDFLAGS. * configure.ac: Use AC_SUBST(ac_lto_plugin_extra_ldflags). * Makefile.in: Regenerate. * configure: Regenerate.
2022-07-13Daily bump.GCC Administrator1-0/+7
2022-07-12lto-plugin: implement LDPT_GET_API_VERSIONMartin Liska3-2/+49
include/ChangeLog: * plugin-api.h (enum linker_api_version): New enum. (ld_plugin_get_api_version): New. (enum ld_plugin_tag): Add LDPT_GET_API_VERSION. (struct ld_plugin_tv): Add tv_get_api_version. lto-plugin/ChangeLog: * lto-plugin.c (negotiate_api_version): New. (onload): Negotiate API version. * Makefile.am: Add -DBASE_VERSION. * Makefile.in: Regenerate.
2022-07-08Daily bump.GCC Administrator1-0/+11
2022-07-07lto-plugin: use locking only for selected targetsMartin Liska4-18/+53
For now, support locking only for linux targets that are different from riscv* where the target depends on libatomic (and fails during bootstrap). PR lto/106170 lto-plugin/ChangeLog: * configure.ac: Configure HAVE_PTHREAD_LOCKING. * lto-plugin.c (LOCK_SECTION): New. (UNLOCK_SECTION): New. (claim_file_handler): Use the newly added macros. (onload): Likewise. * config.h.in: Regenerate. * configure: Regenerate.
2022-07-02Daily bump.GCC Administrator1-0/+8
2022-07-01lto: pass -pthread to AM_LDFLAGS [PR 106118]Pekka Seppänen4-10/+6
Move -pthread from configure.ac to Makefile.in so that it is passed to AM_LDFLAGS. PR lto/106118 lto-plugin/ChangeLog: * configure.ac: Move -pthread from here... * Makefile.am: ...to here. * configure: Regenerate. * Makefile.in: Likewise.
2022-06-28Daily bump.GCC Administrator1-0/+9
2022-06-27lto-plugin: make claim_file_handler thread-safeMartin Liska4-2/+45
lto-plugin/ChangeLog: * lto-plugin.c (plugin_lock): New lock. (claim_file_handler): Use mutex for critical section. (onload): Initialize mutex. * configure.ac: Check for pthread.h. * configure: Regenerate. * config.h.in: Regenerate.
2022-06-21Daily bump.GCC Administrator1-0/+7
2022-06-20lto-plugin: support LDPT_GET_SYMBOLS_V3Martin Liska1-7/+35
That supports skipping of an object file (LDPS_NO_SYMS). lto-plugin/ChangeLog: * lto-plugin.c (struct plugin_file_info): Add skip_file flag. (write_resolution): Write resolution only if get_symbols != LDPS_NO_SYMS. (all_symbols_read_handler): Ignore file if skip_file is true. (onload): Handle LDPT_GET_SYMBOLS_V3.
2022-05-05Daily bump.GCC Administrator1-0/+9
2022-05-04LTO plugin: modernize a bit.Martin Liska1-9/+10
include/ChangeLog: * plugin-api.h (enum ld_plugin_tag): Do not set implicit enum values. lto-plugin/ChangeLog: * lto-plugin.c (struct plugin_objfile): Use bool for offset field. (exec_lto_wrapper): Assign true/false to bool variables. (process_offload_section): Likewise. (claim_file_handler): Likewise. (onload): Likewise.
2022-03-23Daily bump.GCC Administrator1-0/+14
2022-03-22lto-plugin: Use GNU ld or Solaris ld version script in preference to ↵Jakub Jelinek5-8/+179
-export-symbols-regex [PR102426] 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.
2022-03-12Daily bump.GCC Administrator1-0/+5
2022-03-11lto-plugin: Honor link_output_name for -foffload-objects file nameTobias Burnus1-1/+8
lto-plugin/ChangeLog: * lto-plugin.c (all_symbols_read_handler): With -save-temps, use link_output_name for -foffload-objects's file name, if available.
2022-03-02Daily bump.GCC Administrator1-0/+6
2022-03-01lto-plugin: update comments - remove hardwired goldMartin Liska1-7/+7
lto-plugin/ChangeLog: * lto-plugin.c (process_offload_section): Use a linker as many comments are connected to gold linker. (process_option): Likewise.
2022-01-03Update copyright years.Jakub Jelinek1-1/+1
2021-12-03Daily bump.GCC Administrator1-0/+7
2021-12-02fix spelling of -linker-output-auto-nolto-relRasmus Villemoes1-2/+4
The transposition nolto -> notlo is confusing and it makes the long name even harder to read than it already is - I kept reading it as "not lo" until I realized it was a simple typo. Fixes: 5269b24605b1 (Silence warning in LTO mode on VxWorks) lto-plugin/ * lto-plugin.c: Fix -linker-output-auto-notlo-rel -> -linker-output-auto-nolto-rel typo. (process_option): Adjust accordingly, accepting both old and new spelling. gcc/ * config/vxworks.h (LTO_PLUGIN_SPEC): Adapt to corrected spelling of -linker-output-auto-nolto-rel.
2021-09-14Daily bump.GCC Administrator1-0/+6
2021-09-13Fix PR lto/49664: liblto_plugin.so exports too many symbolsAndrew Pinski2-4/+6
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.
2021-06-26Daily bump.GCC Administrator1-0/+7
2021-06-25add -ltrans-objects lto-plugin debug optionRichard Biener1-0/+12
This adds a -ltrans-objects option to lto-plugin that by-passes lto-wrapper invocation and instead feeds LD the final LTRANS objects directly from the response file given as argument to the option. This allows LD issues involving the linker-plugin path to be debugged in an easier way with just the IR objects (their symtab) and the LTRANS objects as testcase. I've tested the path re-building stage2 build/genmatch from an LTO bootstrap and got a bit-identical executable by adding -plugin-opt=-ltrans-objects=y to the original collect2 invocation, seeding y with the final objects as printed by building genmatch with -save-temps -v. 2021-06-22 Richard Biener <rguenther@suse.de> lto-plugin/ * lto-plugin.c (ltrans_objects): New global. (all_symbols_read_handler): If -ltrans-objects was specified, add the output files from the specified file directly. (process_option): Handle -ltrans-objects.
2021-05-11Daily bump.GCC Administrator1-0/+18
2021-05-10LTO plugin: use startswith function.Martin Liska1-16/+13
lto-plugin/ChangeLog: * lto-plugin.c (LTO_SEGMENT_NAME): Remove. (LTO_SYMTAB_PREFIX): Likewise. (LTO_SYMTAB_PREFIX_LEN): Likewise. (LTO_SYMTAB_EXT_PREFIX): Likewise. (LTO_SYMTAB_EXT_PREFIX_LEN): Likewise. (LTO_LTO_PREFIX): Likewise. (LTO_LTO_PREFIX_LEN): Likewise. (OFFLOAD_SECTION): Likewise. (OFFLOAD_SECTION_LEN): Likewise. (startswith): New function. (all_symbols_read_handler): Use it. (process_symtab): Likewise. (process_symtab_extension): Likewise. (process_offload_section): Likewise. (process_option): Likewise.
2021-05-04Daily bump.GCC Administrator1-0/+5
2021-05-03GCC_CET_HOST_FLAGS: Check if host supports multi-byte NOPsH.J. Lu1-16/+47
Check if host supports multi-byte NOPs before enabling CET on host. gcc/ PR bootstrap/99703 * configure: Regenerated. libbacktrace/ PR bootstrap/99703 * configure: Regenerated. libcc1/ PR bootstrap/99703 * configure: Regenerated. libcpp/ PR bootstrap/99703 * configure: Regenerated. libdecnumber/ PR bootstrap/99703 * configure: Regenerated. lto-plugin/ PR bootstrap/99703 * configure: Regenerated.
2021-04-22Daily bump.GCC Administrator1-0/+4
2021-04-21Fix clang warning (-Wstring-plus-int)Martin Liska1-3/+3
This fixes: lto-plugin.c:642:7: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int] lto-plugin/ChangeLog: * lto-plugin.c (exec_lto_wrapper): Make a temp variable.
2021-01-06Daily bump.GCC Administrator1-0/+4
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