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From: Thomas Schwinge <tschwinge@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r14-9857] aarch64: Add support for aarch64-gnu (GNU/Hurd on AArch64) Date: Tue, 9 Apr 2024 07:24:27 +0000 (GMT) [thread overview] Message-ID: <20240409072428.6340D3858CDA@sourceware.org> (raw) https://gcc.gnu.org/g:9670a2326333caa8482377c00beb65723b7b4b26 commit r14-9857-g9670a2326333caa8482377c00beb65723b7b4b26 Author: Sergey Bugaev <bugaevc@gmail.com> Date: Sat Mar 23 17:35:12 2024 +0300 aarch64: Add support for aarch64-gnu (GNU/Hurd on AArch64) Coupled with a corresponding binutils patch, this produces a toolchain that can sucessfully build working binaries targeting aarch64-gnu. gcc/Changelog: * config.gcc: Recognize aarch64*-*-gnu* targets. * config/aarch64/aarch64-gnu.h: New file. Signed-off-by: Sergey Bugaev <bugaevc@gmail.com> Diff: --- gcc/config.gcc | 6 ++++ gcc/config/aarch64/aarch64-gnu.h | 68 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 74 insertions(+) diff --git a/gcc/config.gcc b/gcc/config.gcc index 63a88bce484..5df3c52f8e9 100644 --- a/gcc/config.gcc +++ b/gcc/config.gcc @@ -1265,6 +1265,12 @@ aarch64*-*-linux*) done TM_MULTILIB_CONFIG=`echo $TM_MULTILIB_CONFIG | sed 's/^,//'` ;; +aarch64*-*-gnu*) + tm_file="${tm_file} elfos.h gnu-user.h gnu.h glibc-stdint.h" + tm_file="${tm_file} aarch64/aarch64-elf.h aarch64/aarch64-errata.h aarch64/aarch64-gnu.h" + tmake_file="${tmake_file} aarch64/t-aarch64" + tm_defines="${tm_defines} TARGET_DEFAULT_ASYNC_UNWIND_TABLES=1" + ;; aarch64*-wrs-vxworks*) tm_file="${tm_file} elfos.h aarch64/aarch64-elf.h" tm_file="${tm_file} vx-common.h vxworks.h aarch64/aarch64-vxworks.h" diff --git a/gcc/config/aarch64/aarch64-gnu.h b/gcc/config/aarch64/aarch64-gnu.h new file mode 100644 index 00000000000..ee54940342d --- /dev/null +++ b/gcc/config/aarch64/aarch64-gnu.h @@ -0,0 +1,68 @@ +/* Definitions for AArch64 running GNU/Hurd. + Copyright (C) 2009-2024 Free Software Foundation, Inc. + + This file is part of GCC. + + GCC 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, or (at your option) + any later version. + + GCC 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 GCC; see the file COPYING3. If not see + <http://www.gnu.org/licenses/>. */ + +#ifndef GCC_AARCH64_GNU_H +#define GCC_AARCH64_GNU_H + +#define GNU_USER_DYNAMIC_LINKER "/lib/ld-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1" + +#define CPP_SPEC "%{pthread:-D_REENTRANT}" + +#define GNU_TARGET_LINK_SPEC "%{h*} \ + %{static:-Bstatic} \ + %{shared:-shared} \ + %{symbolic:-Bsymbolic} \ + %{!static:%{!static-pie: \ + %{rdynamic:-export-dynamic} \ + %{!shared:-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}} \ + %{static-pie:-Bstatic -pie --no-dynamic-linker -z text} \ + -X \ + %{mbig-endian:-EB} %{mlittle-endian:-EL} \ + -maarch64gnu%{mabi=ilp32:32}%{mbig-endian:b}" + + +#define LINK_SPEC GNU_TARGET_LINK_SPEC AARCH64_ERRATA_LINK_SPEC + +#define GNU_USER_TARGET_MATHFILE_SPEC \ + "%{Ofast|ffast-math|funsafe-math-optimizations:%{!shared:crtfastmath.o%s}}" + +#undef ENDFILE_SPEC +#define ENDFILE_SPEC \ + GNU_USER_TARGET_MATHFILE_SPEC " " \ + GNU_USER_TARGET_ENDFILE_SPEC + +#define TARGET_OS_CPP_BUILTINS() \ + do \ + { \ + GNU_USER_TARGET_OS_CPP_BUILTINS(); \ + } \ + while (0) + +#define TARGET_ASM_FILE_END aarch64_file_end_indicate_exec_stack + +/* Uninitialized common symbols in non-PIE executables, even with + strong definitions in dependent shared libraries, will resolve + to COPY relocated symbol in the executable. See PR65780. */ +#undef TARGET_BINDS_LOCAL_P +#define TARGET_BINDS_LOCAL_P default_binds_local_p_2 + +/* Define this to be nonzero if static stack checking is supported. */ +#define STACK_CHECK_STATIC_BUILTIN 1 + +#endif /* GCC_AARCH64_GNU_H */
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