Thanks for finding this Christoph, I had this failure a while ago but it stopped happening so I thought all was good. I have a fix ready.
Sam On 29/05/2019 12:22, Christophe Lyon wrote: > On Wed, 29 May 2019 at 11:23, Sam Tebbs <sam.te...@arm.com> wrote: >> The libgcc changes have been acknowledged off-list. Committed as r271735. >> > After this commit, I'm seeing errors while building libstdc++: > 0x11c29f3 aarch64_return_address_signing_enabled() > > /tmp/8467855_6.tmpdir/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/config/aarch64/aarch64.c:4865 > 0x11c2a08 aarch64_post_cfi_startproc(_IO_FILE*, tree_node*) > > /tmp/8467855_6.tmpdir/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/config/aarch64/aarch64.c:15373 > 0xa27098 dwarf2out_do_cfi_startproc > > /tmp/8467855_6.tmpdir/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/dwarf2out.c:972 > 0xa43d6e dwarf2out_begin_prologue(unsigned int, unsigned int, char const*) > > /tmp/8467855_6.tmpdir/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/dwarf2out.c:1106 > 0xae05d5 final_start_function_1 > > /tmp/8467855_6.tmpdir/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/final.c:1735 > 0xae0c2f final_start_function(rtx_insn*, _IO_FILE*, int) > > /tmp/8467855_6.tmpdir/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/final.c:1818 > 0x11c4442 aarch64_output_mi_thunk > > /tmp/8467855_6.tmpdir/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/config/aarch64/aarch64.c:6085 > 0x9cfa4f cgraph_node::expand_thunk(bool, bool) > > /tmp/8467855_6.tmpdir/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/cgraphunit.c:1831 > 0x9d0dba cgraph_node::assemble_thunks_and_aliases() > > /tmp/8467855_6.tmpdir/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/cgraphunit.c:2122 > 0x9d0d89 cgraph_node::assemble_thunks_and_aliases() > > /tmp/8467855_6.tmpdir/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/cgraphunit.c:2140 > 0x9d1068 cgraph_node::expand() > > /tmp/8467855_6.tmpdir/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/cgraphunit.c:2259 > 0x9d23ec expand_all_functions > > /tmp/8467855_6.tmpdir/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/cgraphunit.c:2332 > 0x9d23ec symbol_table::compile() > > /tmp/8467855_6.tmpdir/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/cgraphunit.c:2683 > 0x9d5020 symbol_table::compile() > > /tmp/8467855_6.tmpdir/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/cgraphunit.c:2595 > 0x9d5020 symbol_table::finalize_compilation_unit() > > /tmp/8467855_6.tmpdir/aci-gcc-fsf/sources/gcc-fsf/gccsrc/gcc/cgraphunit.c:2861 > Please submit a full bug report, > with preprocessed source if appropriate. > Please include the complete backtrace with any bug report. > See <https://gcc.gnu.org/bugs/> for instructions. > make[5]: *** [Makefile:900: strstream.lo] Error 1 > > in aarch64-none-linux-gnu/libstdc++-v3/src/c++98 > > (same for aarch64[_be]-elf) > > Christophe > >> On 01/03/2019 14:12, Sam Tebbs wrote: >>> On 31/01/2019 14:54, Sam Tebbs wrote: >>>> <snip> >>>>> ping 3. The preceding two patches were committed a while ago but require >>>>> the minor libgcc changes in this patch, which are the only parts left to >>>>> be reviewed. >>>> ping 4 >>> Attached is a rebased patch made to work on top of Sudi Das' BTI patch >>> (by renaming UNSPEC_PACISP to UNSPEC_PACIASP and UNSPEC_PACIBSP in >>> aarch64-bti-insert.c). The updated changelog is below. >>> >>> Are the libgcc changes OK for trunk? >>> >>> gcc/ >>> 2019-03-01 Sam Tebbs<sam.te...@arm.com> >>> >>> * config/aarch64/aarch64-builtins.c (aarch64_builtins): Add >>> AARCH64_PAUTH_BUILTIN_AUTIB1716 and AARCH64_PAUTH_BUILTIN_PACIB1716. >>> * config/aarch64/aarch64-builtins.c >>> (aarch64_init_pauth_hint_builtins): >>> Add autib1716 and pacib1716 initialisation. >>> * config/aarch64/aarch64-builtins.c (aarch64_expand_builtin): Add >>> checks >>> for autib1716 and pacib1716. >>> * config/aarch64/aarch64-protos.h (aarch64_key_type, >>> aarch64_post_cfi_startproc): Define. >>> * config/aarch64/aarch64-protos.h (aarch64_ra_sign_key): Define >>> extern. >>> * config/aarch64/aarch64.c >>> (aarch64_handle_standard_branch_protection, >>> aarch64_handle_pac_ret_protection): Set default sign key to A. >>> * config/aarch64/aarch64.c (aarch64_expand_epilogue, >>> aarch64_expand_prologue): Add check for b-key. >>> * config/aarch64/aarch64.c (aarch64_ra_sign_key, >>> aarch64_post_cfi_startproc, aarch64_handle_pac_ret_b_key): Define. >>> * config/aarch64/aarch64.h (TARGET_ASM_POST_CFI_STARTPROC): Define. >>> * config/aarch64/aarch64.c (aarch64_pac_ret_subtypes): Add "b-key". >>> * config/aarch64/aarch64.md (unspec): Add UNSPEC_AUTIA1716, >>> UNSPEC_AUTIB1716, UNSPEC_AUTIASP, UNSPEC_AUTIBSP, UNSPEC_PACIA1716, >>> UNSPEC_PACIB1716, UNSPEC_PACIASP, UNSPEC_PACIBSP. >>> * config/aarch64/aarch64.md (do_return): Add check for b-key. >>> * config/aarch64/aarch64.md (<pauth_mnem_prefix>sp): Replace >>> pauth_hint_num_a with pauth_hint_num. >>> * config/aarch64/aarch64.md (<pauth_mnem_prefix>1716): Replace >>> pauth_hint_num_a with pauth_hint_num. >>> * config/aarch64/aarch64.opt (msign-return-address=): Deprecate. >>> * config/aarch64/iterators.md (PAUTH_LR_SP): Add UNSPEC_AUTIASP, >>> UNSPEC_AUTIBSP, UNSPEC_PACIASP, UNSPEC_PACIBSP. >>> * config/aarch64/iterators.md (PAUTH_17_16): Add UNSPEC_AUTIA1716, >>> UNSPEC_AUTIB1716, UNSPEC_PACIA1716, UNSPEC_PACIB1716. >>> * config/aarch64/iterators.md (pauth_mnem_prefix): Add >>> UNSPEC_AUTIA1716, >>> UNSPEC_AUTIB1716, UNSPEC_PACIA1716, UNSPEC_PACIB1716, UNSPEC_AUTIASP, >>> UNSPEC_AUTIBSP, UNSPEC_PACIASP, UNSPEC_PACIBSP. >>> * config/aarch64/iterators.md (pauth_hint_num_a): Replace >>> UNSPEC_PACI1716 and UNSPEC_AUTI1716 with UNSPEC_PACIA1716 and >>> UNSPEC_AUTIA1716 respectively. >>> * config/aarch64/iterators.md (pauth_hint_num_a): Rename to >>> pauth_hint_num >>> and add UNSPEC_PACIBSP, UNSPEC_AUTIBSP, UNSPEC_PACIB1716, >>> UNSPEC_AUTIB1716. >>> * doc/invoke.texi (-mbranch-protection): Add b-key type. >>> * config/aarch64/aarch64-bti-insert.c (aarch64_pac_insn_p): Rename >>> UNSPEC_PACISP to UNSPEC_PACIASP and UNSPEC_PACIBSP. >>> >>> gcc/testsuite >>> 2019-03-01 Sam Tebbs<sam.te...@arm.com> >>> >>> * gcc.target/aarch64/return_address_sign_b_1.c: New file. >>> * gcc.target/aarch64/return_address_sign_b_2.c: New file. >>> * gcc.target/aarch64/return_address_sign_b_3.c: New file. >>> * gcc.target/aarch64/return_address_sign_b_exception.c: New file. >>> * gcc.target/aarch64/return_address_sign_ab_exception.c: New file. >>> * gcc.target/aarch64/return_address_sign_builtin.c: New file >>> >>> libgcc/ >>> 2019-03-01 Sam Tebbs<sam.te...@arm.com> >>> >>> * config/aarch64/aarch64-unwind.h (aarch64_cie_signed_with_b_key): >>> New >>> function. >>> * config/aarch64/aarch64-unwind.h (aarch64_post_extract_frame_addr, >>> aarch64_post_frob_eh_handler_addr): Add check for b-key. >>> * config/aarch64/aarch64-unwind-h (aarch64_post_extract_frame_addr, >>> aarch64_post_frob_eh_handler_addr, aarch64_post_frob_update_context): >>> Rename RA_A_SIGNED_BIT to RA_SIGNED_BIT. >>> * unwind-dw2-fde.c (get_cie_encoding): Add check for 'B' in >>> augmentation >>> string. >>> * unwind-dw2.c (extract_cie_info): Add check for 'B' in augmentation >>> string. >>> (RA_A_SIGNED_BIT): Rename to RA_SIGNED_BIT. >>>
