From 000a002072d04d70bcd1d4be0daf8838035afa23 Mon Sep 17 00:00:00 2001 From: Iain Sandoe Date: Tue, 23 Jul 2019 20:31:26 +0000 Subject: [PATCH] [Darwin] Fix PR87030 and tidy config fragments. This is about 32/64b host and multilib support across the range of Darwin systems. Prior to Darwin8 (OS X 10.4), the toolchains support only PowerPC and only 32b. On Darwin8 it is possible to target a 64b multilib, but with support limited to a few of the main libraries on the system (not a recommended configuration). From Darwin9 to Darwin17 (OSX 10.5 to 10.13) it is possible to have either 32 or 64b hosted toolchains, with support for a 64 or 32b multilib respectively. On Darwin9 the kernel is 32b, but with support for 64b executables, so it's conventional to build a 32b host toolchain supporting a 64b multilib. However this is not enforced (merely a convention). There is also some platform hardware supporting Darwin10/11 which is only 32b and for which the same situation applies. However, from Darwin10 to Darwin17, the majority of platform hardware supports a 64b kernel and it's conventional to build a 64b host toolchain with support for a 32b multilib. On/from Darwin18 (OS X 10.14), the development headers (in the SDK) no longer expose the interfaces for the 32b multilib support (although sufficient runtime support remains installed that the testsuite can be run for a 32b multilib). The PR is raised against this latter situation since the absence of exposed interfaces causes a 'default' bootstrap fail regardless of the availability of the runtimes. Given the number of permutations, I felt it warranted a general solution, especially since the current scheme of target headers and t-make fragments has become somewhat messy. The changes here enforce the single 32b PowerPC multilib for Darwin < 8 and the single X86 64b multilib for Darwin >= 18. This means that there is no longer any need to configure Darwin18+ '--disable-multilib', but also that if you want to use the ability to continue to test the compiler's 32b multilib there, you need to make a configuration targeting an earlier OS version (and using the SDK from that). gcc/ PR bootstrap/87030 * config.gcc (*-*-darwin*): Don't include CPU t-darwin here. (i[34567]86-*-darwin*): Adjust to use biarch files. Produce an error message if i686-darwin configuration is attempted for Darwin >= 18. (x86_64-*-darwin*): Switch to single multilib for Darwin >= 18. (powerpc-*-darwin*): Use biarch files where needed. (powerpc64-*-darwin*): Likewise. * config/i386/darwin.h (REAL_LIBGCC_SPEC): Move to new biarch file. (DARWIN_ARCH_SPEC, DARWIN_SUBARCH_SPEC): Revise for default single arch case. * config/i386/darwin32-biarch.h: New. * config/i386/darwin64.h: Rename. * gcc/config/i386/darwin64-biarch.h: To this. * config/i386/t-darwin: Rename. * gcc/config/i386/t-darwin32-biarch: To this. * config/i386/t-darwin64: Rename. * gcc/config/i386/t-darwin64-biarch: To this. * config/rs6000/darwin32-biarch.h: New. * config/rs6000/darwin64.h: Rename. * config/rs6000/darwin64-biarch.h: To this. (DARWIN_ARCH_SPEC, DARWIN_SUBARCH_SPEC): Revise for default single arch case. * config/rs6000/t-darwin8: Rename. * config/rs6000/t-darwin32-biarch: To this. * config/rs6000/t-darwin64 Rename. * config/rs6000/t-darwin64-biarch: To this. From-SVN: r273746 --- gcc/ChangeLog | 30 +++++++++++++ gcc/config/i386/darwin.h | 10 ++--- gcc/config/i386/darwin32-biarch.h | 32 ++++++++++++++ gcc/config/i386/{darwin64.h => darwin64-biarch.h} | 0 gcc/config/i386/{t-darwin => t-darwin32-biarch} | 0 gcc/config/i386/{t-darwin64 => t-darwin64-biarch} | 0 gcc/config/rs6000/darwin.h | 7 ++-- gcc/config/rs6000/darwin32-biarch.h | 49 ++++++++++++++++++++++ .../rs6000/{darwin64.h => darwin64-biarch.h} | 11 +++-- gcc/config/rs6000/{t-darwin8 => t-darwin32-biarch} | 0 .../rs6000/{t-darwin64 => t-darwin64-biarch} | 0 11 files changed, 127 insertions(+), 12 deletions(-) create mode 100644 gcc/config/i386/darwin32-biarch.h rename gcc/config/i386/{darwin64.h => darwin64-biarch.h} (100%) rename gcc/config/i386/{t-darwin => t-darwin32-biarch} (100%) rename gcc/config/i386/{t-darwin64 => t-darwin64-biarch} (100%) create mode 100644 gcc/config/rs6000/darwin32-biarch.h rename gcc/config/rs6000/{darwin64.h => darwin64-biarch.h} (74%) rename gcc/config/rs6000/{t-darwin8 => t-darwin32-biarch} (100%) rename gcc/config/rs6000/{t-darwin64 => t-darwin64-biarch} (100%) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c6c0f4a..16dda55 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,33 @@ +2019-07-23 Iain Sandoe + + PR bootstrap/87030 + * config.gcc (*-*-darwin*): Don't include CPU t-darwin here. + (i[34567]86-*-darwin*): Adjust to use biarch files. Produce + an error message if i686-darwin configuration is attempted for + Darwin >= 18. + (x86_64-*-darwin*): Switch to single multilib for Darwin >= 18. + (powerpc-*-darwin*): Use biarch files where needed. + (powerpc64-*-darwin*): Likewise. + * config/i386/darwin.h (REAL_LIBGCC_SPEC): Move to new biarch file. + (DARWIN_ARCH_SPEC, DARWIN_SUBARCH_SPEC): Revise for default single + arch case. + * config/i386/darwin32-biarch.h: New. + * config/i386/darwin64.h: Rename. + * gcc/config/i386/darwin64-biarch.h: To this. + * config/i386/t-darwin: Rename. + * gcc/config/i386/t-darwin32-biarch: To this. + * config/i386/t-darwin64: Rename. + * gcc/config/i386/t-darwin64-biarch: To this. + * config/rs6000/darwin32-biarch.h: New. + * config/rs6000/darwin64.h: Rename. + * config/rs6000/darwin64-biarch.h: To this. + (DARWIN_ARCH_SPEC, DARWIN_SUBARCH_SPEC): Revise for default single + arch case. + * config/rs6000/t-darwin8: Rename. + * config/rs6000/t-darwin32-biarch: To this. + * config/rs6000/t-darwin64 Rename. + * config/rs6000/t-darwin64-biarch: To this. + 2019-07-23 Martin Sebor * configure.ac (ACX_PROG_CXX_WARNING_OPTS): Revert r273311. diff --git a/gcc/config/i386/darwin.h b/gcc/config/i386/darwin.h index 93bd558..fea3f73 100644 --- a/gcc/config/i386/darwin.h +++ b/gcc/config/i386/darwin.h @@ -139,9 +139,6 @@ along with GCC; see the file COPYING3. If not see " ASM_OPTIONS " -force_cpusubtype_ALL \ %{static}" ASM_MMACOSX_VERSION_MIN_SPEC -#define DARWIN_ARCH_SPEC "%{m64:x86_64;:i386}" -#define DARWIN_SUBARCH_SPEC DARWIN_ARCH_SPEC - #undef ENDFILE_SPEC #define ENDFILE_SPEC \ "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \ @@ -149,12 +146,15 @@ along with GCC; see the file COPYING3. If not see %{mpc64:crtprec64.o%s} \ %{mpc80:crtprec80.o%s}" TM_DESTRUCTOR +#define DARWIN_ARCH_SPEC "x86_64" + +/* We default to x86_64 for single-arch builds, bi-arch overrides. */ #undef SUBTARGET_EXTRA_SPECS #define SUBTARGET_EXTRA_SPECS \ DARWIN_EXTRA_SPECS \ - { "darwin_arch", DARWIN_ARCH_SPEC }, \ + { "darwin_arch", DARWIN_ARCH_SPEC }, \ { "darwin_crt2", "" }, \ - { "darwin_subarch", DARWIN_SUBARCH_SPEC }, + { "darwin_subarch", DARWIN_ARCH_SPEC }, /* The Darwin assembler mostly follows AT&T syntax. */ #undef ASSEMBLER_DIALECT diff --git a/gcc/config/i386/darwin32-biarch.h b/gcc/config/i386/darwin32-biarch.h new file mode 100644 index 0000000..b7f53bf --- /dev/null +++ b/gcc/config/i386/darwin32-biarch.h @@ -0,0 +1,32 @@ +/* Target definitions for i386 running Darwin. + Copyright (C) 2019 Free Software Foundation, Inc. + Contributed by Apple Computer 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 +. */ + +#undef DARWIN_ARCH_SPEC +#define DARWIN_ARCH_SPEC "%{m64:x86_64;:i386}" + +#undef DARWIN_SUBARCH_SPEC +#define DARWIN_SUBARCH_SPEC DARWIN_ARCH_SPEC + +#undef SUBTARGET_EXTRA_SPECS +#define SUBTARGET_EXTRA_SPECS \ + DARWIN_EXTRA_SPECS \ + { "darwin_arch", DARWIN_ARCH_SPEC }, \ + { "darwin_crt2", "" }, \ + { "darwin_subarch", DARWIN_SUBARCH_SPEC }, diff --git a/gcc/config/i386/darwin64.h b/gcc/config/i386/darwin64-biarch.h similarity index 100% rename from gcc/config/i386/darwin64.h rename to gcc/config/i386/darwin64-biarch.h diff --git a/gcc/config/i386/t-darwin b/gcc/config/i386/t-darwin32-biarch similarity index 100% rename from gcc/config/i386/t-darwin rename to gcc/config/i386/t-darwin32-biarch diff --git a/gcc/config/i386/t-darwin64 b/gcc/config/i386/t-darwin64-biarch similarity index 100% rename from gcc/config/i386/t-darwin64 rename to gcc/config/i386/t-darwin64-biarch diff --git a/gcc/config/rs6000/darwin.h b/gcc/config/rs6000/darwin.h index 1bfb577..ee44236 100644 --- a/gcc/config/rs6000/darwin.h +++ b/gcc/config/rs6000/darwin.h @@ -117,11 +117,10 @@ extern int darwin_emit_picsym_stub; %. */ + +#undef DARWIN_ARCH_SPEC +#define DARWIN_ARCH_SPEC "%{m64:ppc64;:ppc}" + +#undef DARWIN_SUBARCH_SPEC +#define DARWIN_SUBARCH_SPEC " \ + %{m64: ppc64} \ + %{!m64: \ + %{mcpu=601:ppc601; \ + mcpu=603:ppc603; \ + mcpu=603e:ppc603; \ + mcpu=604:ppc604; \ + mcpu=604e:ppc604e; \ + mcpu=740:ppc750; \ + mcpu=750:ppc750; \ + mcpu=G3:ppc750; \ + mcpu=7400:ppc7400; \ + mcpu=G4:ppc7400; \ + mcpu=7450:ppc7450; \ + mcpu=970:ppc970; \ + mcpu=power4:ppc970; \ + mcpu=G5:ppc970; \ + :ppc}}" + +#undef SUBTARGET_EXTRA_SPECS +#define SUBTARGET_EXTRA_SPECS \ + DARWIN_EXTRA_SPECS \ + { "darwin_arch", DARWIN_ARCH_SPEC }, \ + { "darwin_crt2", DARWIN_CRT2_SPEC }, \ + { "darwin_subarch", DARWIN_SUBARCH_SPEC }, diff --git a/gcc/config/rs6000/darwin64.h b/gcc/config/rs6000/darwin64-biarch.h similarity index 74% rename from gcc/config/rs6000/darwin64.h rename to gcc/config/rs6000/darwin64-biarch.h index a131ff2..9f72524 100644 --- a/gcc/config/rs6000/darwin64.h +++ b/gcc/config/rs6000/darwin64-biarch.h @@ -1,4 +1,4 @@ -/* Target definitions for PowerPC running Darwin (Mac OS X). +/* Target definitions for PowerPC64 running Darwin (Mac OS X). Copyright (C) 2006-2019 Free Software Foundation, Inc. Contributed by Apple Computer Inc. @@ -25,8 +25,13 @@ #undef DARWIN_ARCH_SPEC #define DARWIN_ARCH_SPEC "%{m32:ppc;:ppc64}" +/* Actually, there's really only 970 as an active option. */ #undef DARWIN_SUBARCH_SPEC #define DARWIN_SUBARCH_SPEC DARWIN_ARCH_SPEC -#undef DARWIN_CRT2_SPEC -#define DARWIN_CRT2_SPEC "" +#undef SUBTARGET_EXTRA_SPECS +#define SUBTARGET_EXTRA_SPECS \ + DARWIN_EXTRA_SPECS \ + { "darwin_arch", DARWIN_ARCH_SPEC }, \ + { "darwin_crt2", "" }, \ + { "darwin_subarch", DARWIN_SUBARCH_SPEC }, diff --git a/gcc/config/rs6000/t-darwin8 b/gcc/config/rs6000/t-darwin32-biarch similarity index 100% rename from gcc/config/rs6000/t-darwin8 rename to gcc/config/rs6000/t-darwin32-biarch diff --git a/gcc/config/rs6000/t-darwin64 b/gcc/config/rs6000/t-darwin64-biarch similarity index 100% rename from gcc/config/rs6000/t-darwin64 rename to gcc/config/rs6000/t-darwin64-biarch -- 2.7.4