ports gcc for powerpc64

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ports gcc for powerpc64

Mark Kettenis
I successfully built cad/magic with this.

ok?


Index: lang/gcc/8/Makefile
===================================================================
RCS file: /cvs/ports/lang/gcc/8/Makefile,v
retrieving revision 1.36
diff -u -p -r1.36 Makefile
--- lang/gcc/8/Makefile 14 Nov 2020 00:00:39 -0000 1.36
+++ lang/gcc/8/Makefile 18 Jan 2021 17:06:37 -0000
@@ -1,7 +1,7 @@
 # $OpenBSD: Makefile,v 1.36 2020/11/14 00:00:39 sthen Exp $
 
-ONLY_FOR_ARCHS = \
- aarch64 alpha amd64 arm hppa i386 mips64 mips64el powerpc sparc64
+ONLY_FOR_ARCHS = aarch64 alpha amd64 arm hppa i386 mips64 mips64el \
+ powerpc powerpc64 sparc64
 
 # XXX: sparc64
 ONLY_FOR_ARCHS-ada = amd64 hppa i386 mips64 powerpc
@@ -18,7 +18,7 @@ DPB_PROPERTIES = parallel
 V = 8.4.0
 FULL_VERSION = $V
 FULL_PKGVERSION = $V
-REVISION = 1
+REVISION = 2
 
 ADASTRAP-amd64 = adastrap-amd64-8.3.0-2.tar.xz
 ADASTRAP-arm = adastrap-arm-4.9.4-0.tar.xz
@@ -66,7 +66,8 @@ EXTRACT_ONLY = ${DISTNAME}.tar.xz
 BUILD_DEPENDS += devel/bison \
  devel/libexecinfo
 
-.if ${MACHINE_ARCH} == "aarch64" || ${MACHINE_ARCH} == "arm"
+.if ${MACHINE_ARCH} == "aarch64" || ${MACHINE_ARCH} == "arm" || \
+    ${MACHINE_ARCH} == "powerpc64"
 # would be helpful on i386/amd64 too, but some ports also need the old
 # ld.bfd in base which can't cope with new gas.
 BUILD_DEPENDS += devel/gas
@@ -174,8 +175,8 @@ PKG_ARGS += -DX86=0
 .if ${MACHINE_ARCH} == "aarch64" || ${MACHINE_ARCH} == "alpha" || \
  ${MACHINE_ARCH} == "arm" || \
  ${MACHINE_ARCH} == "amd64" || ${MACHINE_ARCH} == "i386" || \
- ${MACHINE_ARCH} == "powerpc" || ${MACHINE_ARCH} == "sh" || \
- ${MACHINE_ARCH} == "sparc64"
+ ${MACHINE_ARCH} == "powerpc" || ${MACHINE_ARCH} == "powerpc64" || \
+ ${MACHINE_ARCH} == "sh" || ${MACHINE_ARCH} == "sparc64"
 PKG_ARGS += -DITM=1
 .else
 PKG_ARGS += -DITM=0
Index: lang/gcc/8/patches/patch-gcc_config_gcc
===================================================================
RCS file: /cvs/ports/lang/gcc/8/patches/patch-gcc_config_gcc,v
retrieving revision 1.4
diff -u -p -r1.4 patch-gcc_config_gcc
--- lang/gcc/8/patches/patch-gcc_config_gcc 4 Sep 2020 09:55:34 -0000 1.4
+++ lang/gcc/8/patches/patch-gcc_config_gcc 18 Jan 2021 17:06:37 -0000
@@ -98,7 +98,7 @@ Index: gcc/config.gcc
  i[34567]86-*-linux* | i[34567]86-*-kfreebsd*-gnu | i[34567]86-*-gnu* | i[34567]86-*-kopensolaris*-gnu)
  # Intel 80386's running GNU/*
  # with ELF format using glibc 2
-@@ -2394,6 +2432,12 @@ pdp11-*-*)
+@@ -2394,6 +2432,18 @@ pdp11-*-*)
  # tmake_file="${tmake_file} rs6000/t-fprules"
  # extra_headers=
  # ;;
@@ -108,10 +108,16 @@ Index: gcc/config.gcc
 + tmake_file="${tmake_file} rs6000/t-openbsd"
 + extra_options="${extra_options} rs6000/sysv4.opt openbsd.opt"
 + ;;
++powerpc64*-*-openbsd*)
++ tm_defines="${tm_defines} DEFAULT_FLAG_PIE=2"
++ tm_file="${tm_file} dbxelf.h elfos.h openbsd.h openbsd-stdint.h openbsd-libpthread.h freebsd-spec.h rs6000/sysv4.h rs6000/default64.h rs6000/openbsd64.h"
++ tmake_file="${tmake_file} rs6000/t-openbsd64"
++ extra_options="${extra_options} rs6000/sysv4.opt rs6000/linux64.opt openbsd.opt"
++ ;;
  powerpc-*-darwin*)
  extra_options="${extra_options} ${cpu_type}/darwin.opt"
  case ${target} in
-@@ -2994,10 +3038,10 @@ sparc64-*-netbsd*)
+@@ -2994,10 +3044,10 @@ sparc64-*-netbsd*)
  tmake_file="${tmake_file} sparc/t-sparc sparc/t-netbsd64"
  ;;
  sparc64-*-openbsd*)
@@ -123,7 +129,7 @@ Index: gcc/config.gcc
  gas=yes gnu_ld=yes
  with_cpu=ultrasparc
  tmake_file="${tmake_file} sparc/t-sparc"
-@@ -3226,6 +3270,12 @@ case ${target} in
+@@ -3226,6 +3276,12 @@ case ${target} in
      else
        arch=i386
      fi
Index: lang/gcc/8/patches/patch-gcc_config_rs6000_openbsd64_h
===================================================================
RCS file: lang/gcc/8/patches/patch-gcc_config_rs6000_openbsd64_h
diff -N lang/gcc/8/patches/patch-gcc_config_rs6000_openbsd64_h
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ lang/gcc/8/patches/patch-gcc_config_rs6000_openbsd64_h 18 Jan 2021 17:06:37 -0000
@@ -0,0 +1,417 @@
+$OpenBSD$
+
+Index: gcc/config/rs6000/openbsd64.h
+--- gcc/config/rs6000/openbsd64.h.orig
++++ gcc/config/rs6000/openbsd64.h
+@@ -0,0 +1,411 @@
++/* Definitions for 64-bit PowerPC running OpenBSD using the ELF format
++   Copyright (C) 2012-2021 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/>.  */
++
++/* Override the defaults, which exist to force the proper definition.  */
++
++#ifdef IN_LIBGCC2
++#undef TARGET_64BIT
++#ifdef __powerpc64__
++#define TARGET_64BIT 1
++#else
++#define TARGET_64BIT 0
++#endif
++#endif
++
++#undef TARGET_AIX
++#define TARGET_AIX TARGET_64BIT
++
++#ifdef HAVE_LD_NO_DOT_SYMS
++/* New ABI uses a local sym for the function entry point.  */
++extern int dot_symbols;
++#undef DOT_SYMBOLS
++#define DOT_SYMBOLS dot_symbols
++#endif
++
++#define TARGET_USES_LINUX64_OPT 1
++#ifdef HAVE_LD_LARGE_TOC
++#undef TARGET_CMODEL
++#define TARGET_CMODEL rs6000_current_cmodel
++#define SET_CMODEL(opt) rs6000_current_cmodel = opt
++#else
++#define SET_CMODEL(opt) do {} while (0)
++#endif
++
++#undef  PROCESSOR_DEFAULT
++#define PROCESSOR_DEFAULT PROCESSOR_POWER7
++#undef  PROCESSOR_DEFAULT64
++#define PROCESSOR_DEFAULT64 PROCESSOR_POWER8
++
++/* We don't need to generate entries in .fixup, except when
++   -mrelocatable or -mrelocatable-lib is given.  */
++#undef RELOCATABLE_NEEDS_FIXUP
++#define RELOCATABLE_NEEDS_FIXUP \
++  (rs6000_isa_flags & rs6000_isa_flags_explicit & OPTION_MASK_RELOCATABLE)
++
++#undef  RS6000_ABI_NAME
++#define RS6000_ABI_NAME "openbsd"
++
++#define INVALID_64BIT "%<-m%s%> not supported in this configuration"
++#define INVALID_32BIT INVALID_64BIT
++
++/* OpenBSD/powerpc64 uses the ELF v2 ABI by default.  */
++#define ELFv2_ABI_CHECK (rs6000_elf_abi != 1)
++
++#undef  SUBSUBTARGET_OVERRIDE_OPTIONS
++#define SUBSUBTARGET_OVERRIDE_OPTIONS \
++  do \
++    { \
++      if (!global_options_set.x_rs6000_alignment_flags) \
++ rs6000_alignment_flags = MASK_ALIGN_NATURAL; \
++      if (TARGET_64BIT) \
++ { \
++  if (DEFAULT_ABI != ABI_AIX) \
++    { \
++      rs6000_current_abi = ABI_AIX; \
++      error (INVALID_64BIT, "call"); \
++    } \
++  dot_symbols = !strcmp (rs6000_abi_name, "aixdesc"); \
++  if (rs6000_isa_flags & OPTION_MASK_RELOCATABLE) \
++    { \
++      rs6000_isa_flags &= ~OPTION_MASK_RELOCATABLE; \
++      error (INVALID_64BIT, "relocatable"); \
++    } \
++  if (ELFv2_ABI_CHECK) \
++    { \
++      rs6000_current_abi = ABI_ELFv2; \
++      if (dot_symbols) \
++ error ("-mcall-aixdesc incompatible with -mabi=elfv2"); \
++    } \
++  if (rs6000_isa_flags & OPTION_MASK_EABI) \
++    { \
++      rs6000_isa_flags &= ~OPTION_MASK_EABI; \
++      error (INVALID_64BIT, "eabi"); \
++    } \
++  if (TARGET_PROTOTYPE) \
++    { \
++      target_prototype = 0; \
++      error (INVALID_64BIT, "prototype"); \
++    } \
++  if ((rs6000_isa_flags & OPTION_MASK_POWERPC64) == 0) \
++    { \
++      rs6000_isa_flags |= OPTION_MASK_POWERPC64; \
++      error ("-m64 requires a PowerPC64 cpu"); \
++    } \
++   if ((rs6000_isa_flags_explicit \
++ & OPTION_MASK_MINIMAL_TOC) != 0) \
++    { \
++      if (global_options_set.x_rs6000_current_cmodel \
++  && rs6000_current_cmodel != CMODEL_SMALL) \
++ error ("-mcmodel incompatible with other toc options"); \
++      SET_CMODEL (CMODEL_SMALL); \
++    } \
++  else \
++    { \
++      if (!global_options_set.x_rs6000_current_cmodel) \
++ SET_CMODEL (CMODEL_MEDIUM); \
++      if (rs6000_current_cmodel != CMODEL_SMALL) \
++ { \
++  TARGET_NO_FP_IN_TOC = 0; \
++  TARGET_NO_SUM_IN_TOC = 0; \
++ } \
++    } \
++ } \
++    } \
++  while (0)
++
++#undef ASM_DEFAULT_SPEC
++#undef ASM_SPEC
++
++#define ASM_DEFAULT_SPEC "-mppc%{!m32:64}"
++#define ASM_SPEC "%{m32:%(asm_spec32)}%{!m32:%(asm_spec64)} %(asm_spec_common)"
++
++#define ASM_SPEC32 "-a32 \
++%{mrelocatable} %{mrelocatable-lib} %{" FPIE_OR_FPIC_SPEC ":-K PIC} \
++%{memb} %{!memb: %{msdata=eabi: -memb}} \
++%{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
++    %{mcall-freebsd: -mbig} \
++    %{mcall-i960-old: -mlittle} \
++    %{mcall-linux: -mbig} \
++    %{mcall-gnu: -mbig} \
++    %{mcall-netbsd: -mbig} \
++}}}}"
++
++#define ASM_SPEC64 "-a64"
++
++#define ASM_SPEC_COMMON "%(asm_cpu) \
++%{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}} \
++%{mlittle} %{mlittle-endian} %{mbig} %{mbig-endian}"
++
++#undef SUBSUBTARGET_EXTRA_SPECS
++#define SUBSUBTARGET_EXTRA_SPECS \
++  { "asm_spec_common", ASM_SPEC_COMMON }, \
++  { "asm_spec32", ASM_SPEC32 }, \
++  { "asm_spec64", ASM_SPEC64 },
++
++#undef MULTILIB_DEFAULTS
++#define MULTILIB_DEFAULTS { "m64" }
++
++/* OpenBSD/powerpc64 increases natural record alignment to doubleword if
++   the first field is an FP double, only if in power alignment mode.  */
++#undef  ROUND_TYPE_ALIGN
++#define ROUND_TYPE_ALIGN(STRUCT, COMPUTED, SPECIFIED) \
++  ((TARGET_64BIT \
++    && (TREE_CODE (STRUCT) == RECORD_TYPE \
++ || TREE_CODE (STRUCT) == UNION_TYPE \
++ || TREE_CODE (STRUCT) == QUAL_UNION_TYPE) \
++    && TARGET_ALIGN_NATURAL == 0) \
++   ? rs6000_special_round_type_align (STRUCT, COMPUTED, SPECIFIED) \
++   : MAX ((COMPUTED), (SPECIFIED)))
++
++/* Use the default for compiling target libs.  */
++#ifdef IN_TARGET_LIBS
++#undef TARGET_ALIGN_NATURAL
++#define TARGET_ALIGN_NATURAL 1
++#endif
++
++/* Indicate that jump tables go in the text section.  */
++#undef  JUMP_TABLES_IN_TEXT_SECTION
++#define JUMP_TABLES_IN_TEXT_SECTION TARGET_64BIT
++
++/* The linux ppc64 ABI isn't explicit on whether aggregates smaller
++   than a doubleword should be padded upward or downward.  You could
++   reasonably assume that they follow the normal rules for structure
++   layout treating the parameter area as any other block of memory,
++   then map the reg param area to registers.  i.e. pad upward.
++   Setting both of the following defines results in this behavior.
++   Setting just the first one will result in aggregates that fit in a
++   doubleword being padded downward, and others being padded upward.
++   Not a bad idea as this results in struct { int x; } being passed
++   the same way as an int.  */
++#define AGGREGATE_PADDING_FIXED TARGET_64BIT
++#define AGGREGATES_PAD_UPWARD_ALWAYS 0
++
++/* Specify padding for the last element of a block move between
++   registers and memory.  FIRST is nonzero if this is the only
++   element.  */
++#define BLOCK_REG_PADDING(MODE, TYPE, FIRST) \
++  (!(FIRST) ? PAD_UPWARD : targetm.calls.function_arg_padding (MODE, TYPE))
++
++/* OpenBSD doesn't support saving and restoring 64-bit regs with a 32-bit
++   kernel.  */
++#define OS_MISSING_POWERPC64 !TARGET_64BIT
++
++#undef  TARGET_OS_CPP_BUILTINS
++#define TARGET_OS_CPP_BUILTINS() \
++  do \
++    { \
++      OPENBSD_OS_CPP_BUILTINS_ELF(); \
++      builtin_define ("__PPC__"); \
++      builtin_define ("__ppc__"); \
++      builtin_define ("__powerpc__"); \
++      if (TARGET_64BIT) \
++ { \
++  builtin_define ("__arch64__"); \
++  builtin_define ("__LP64__"); \
++  builtin_define ("__PPC64__"); \
++  builtin_define ("__powerpc64__"); \
++  builtin_assert ("cpu=powerpc64"); \
++  builtin_assert ("machine=powerpc64"); \
++ } \
++      else \
++ { \
++  builtin_define_std ("PPC"); \
++  builtin_define_std ("powerpc"); \
++  builtin_assert ("cpu=powerpc"); \
++  builtin_assert ("machine=powerpc"); \
++  TARGET_OS_SYSV_CPP_BUILTINS (); \
++ } \
++    } \
++  while (0)
++
++#undef CPP_OS_DEFAULT_SPEC
++#define CPP_OS_DEFAULT_SPEC "%(cpp_os_openbsd)"
++
++#undef LINK_SPEC
++#define LINK_SPEC "%{shared:-shared} \
++  %{!shared: \
++    %{!static: \
++      %{rdynamic:-export-dynamic} \
++      %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.so}} \
++    %{static:-static}} \
++  -L/usr/lib"
++
++#undef LIB_DEFAULT_SPEC
++#define LIB_DEFAULT_SPEC "%(lib_openbsd)"
++
++#undef STARTFILE_DEFAULT_SPEC
++#define STARTFILE_DEFAULT_SPEC "%(startfile_openbsd)"
++
++#undef ENDFILE_DEFAULT_SPEC
++#define ENDFILE_DEFAULT_SPEC "%(endfile_openbsd)"
++
++#undef LINK_START_DEFAULT_SPEC
++#define LINK_START_DEFAULT_SPEC "%(link_start_openbsd)"
++
++#undef LINK_OS_DEFAULT_SPEC
++#define LINK_OS_DEFAULT_SPEC "%(link_os_openbsd)"
++
++/************************[  Target stuff  ]***********************************/
++
++/* Define the actual types of some ANSI-mandated types.  
++   Needs to agree with <machine/ansi.h>.  GCC defaults come from c-decl.c,
++   c-common.c, and config/<arch>/<arch>.h.  */
++
++
++#undef  SIZE_TYPE
++#define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int")
++
++#undef  PTRDIFF_TYPE
++#define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int")
++
++/* This must agree with <machine/_types.h> */
++#undef SIZE_TYPE
++#define SIZE_TYPE "long unsigned int"
++
++#undef PTRDIFF_TYPE
++#define PTRDIFF_TYPE "long int"
++
++#undef WCHAR_TYPE
++#define WCHAR_TYPE "int"
++
++#undef WCHAR_TYPE_SIZE
++#define WCHAR_TYPE_SIZE 32
++
++/* Override rs6000.h definition.  */
++#undef  ASM_APP_ON
++#define ASM_APP_ON "#APP\n"
++
++/* Override rs6000.h definition.  */
++#undef  ASM_APP_OFF
++#define ASM_APP_OFF "#NO_APP\n"
++
++/* Function profiling bits */
++#undef  RS6000_MCOUNT
++#define RS6000_MCOUNT "_mcount"
++
++#define PROFILE_HOOK(LABEL) \
++  do { if (TARGET_64BIT) output_profile_hook (LABEL); } while (0)
++
++/* _init and _fini functions are built from bits spread across many
++   object files, each potentially with a different TOC pointer.  For
++   that reason, place a nop after the call so that the linker can
++   restore the TOC pointer if a TOC adjusting call stub is needed.  */
++#ifdef __powerpc64__
++#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
++  asm (SECTION_OP "\n" \
++" bl " #FUNC "\n" \
++" nop\n" \
++" .previous");
++#endif
++
++/* FP save and restore routines.  */
++#undef  SAVE_FP_PREFIX
++#define SAVE_FP_PREFIX (TARGET_64BIT ? "._savef" : "_savefpr_")
++#undef  SAVE_FP_SUFFIX
++#define SAVE_FP_SUFFIX ""
++#undef  RESTORE_FP_PREFIX
++#define RESTORE_FP_PREFIX (TARGET_64BIT ? "._restf" : "_restfpr_")
++#undef  RESTORE_FP_SUFFIX
++#define RESTORE_FP_SUFFIX ""
++
++/* Select a format to encode pointers in exception handling data.  CODE
++   is 0 for data, 1 for code labels, 2 for function pointers.  GLOBAL is
++   true if the symbol may be affected by dynamic relocations.  */
++#undef ASM_PREFERRED_EH_DATA_FORMAT
++#define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \
++  (TARGET_64BIT || flag_pic \
++   ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel \
++      | (TARGET_64BIT ? DW_EH_PE_udata8 : DW_EH_PE_sdata4)) \
++   : DW_EH_PE_absptr)
++
++/* Static stack checking is supported by means of probes.  */
++#define STACK_CHECK_STATIC_BUILTIN 1
++
++/* The default value isn't sufficient in 64-bit mode.  */
++#define STACK_CHECK_PROTECT (TARGET_64BIT ? 16 * 1024 : 12 * 1024)
++
++/* Use standard DWARF numbering for DWARF debugging information.  */
++#define RS6000_USE_DWARF_NUMBERING
++
++/* PowerPC64 Linux word-aligns FP doubles when -malign-power is given.  */
++#undef  ADJUST_FIELD_ALIGN
++#define ADJUST_FIELD_ALIGN(FIELD, TYPE, COMPUTED) \
++  (rs6000_special_adjust_field_align_p ((TYPE), (COMPUTED)) \
++   ? 128                                                                \
++   : (TARGET_64BIT                                                      \
++      && TARGET_ALIGN_NATURAL == 0                                      \
++      && TYPE_MODE (strip_array_types (TYPE)) == DFmode)   \
++   ? MIN ((COMPUTED), 32)                                               \
++   : (COMPUTED))
++
++#undef  TOC_SECTION_ASM_OP
++#define TOC_SECTION_ASM_OP \
++  (TARGET_64BIT                                         \
++   ? "\t.section\t\".toc\",\"aw\""                      \
++   : "\t.section\t\".got\",\"aw\"")
++
++#undef  MINIMAL_TOC_SECTION_ASM_OP
++#define MINIMAL_TOC_SECTION_ASM_OP \
++  (TARGET_64BIT                                         \
++   ? "\t.section\t\".toc1\",\"aw\""                     \
++   : (flag_pic \
++      ? "\t.section\t\".got2\",\"aw\""                  \
++      : "\t.section\t\".got1\",\"aw\""))
++
++/* This is how to declare the size of a function.  */
++#undef  ASM_DECLARE_FUNCTION_SIZE
++#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)                    \
++  do                                                                    \
++    {                                                                   \
++      if (!flag_inhibit_size_directive)                                 \
++        {                                                               \
++          fputs ("\t.size\t", (FILE));                                  \
++          if (TARGET_64BIT && DOT_SYMBOLS)                              \
++            putc ('.', (FILE));                                         \
++          assemble_name ((FILE), (FNAME));                              \
++          fputs (",.-", (FILE));                                        \
++          rs6000_output_function_entry (FILE, FNAME);                   \
++          putc ('\n', (FILE));                                          \
++        }                                                               \
++    }                                                                   \
++  while (0)
++
++#undef  ASM_OUTPUT_SPECIAL_POOL_ENTRY_P
++#define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE)                        \
++  (TARGET_TOC                                                           \
++   && (GET_CODE (X) == SYMBOL_REF                                       \
++       || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS      \
++           && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF)           \
++       || GET_CODE (X) == LABEL_REF                                     \
++       || (GET_CODE (X) == CONST_INT                                    \
++           && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode))      \
++       || (GET_CODE (X) == CONST_DOUBLE                                 \
++           && ((TARGET_64BIT                                            \
++                && (TARGET_MINIMAL_TOC                                  \
++                    || (SCALAR_FLOAT_MODE_P (GET_MODE (X))              \
++                        && ! TARGET_NO_FP_IN_TOC)))                     \
++               || (!TARGET_64BIT                                        \
++                   && !TARGET_NO_FP_IN_TOC                              \
++                   && SCALAR_FLOAT_MODE_P (GET_MODE (X))                \
++                   && BITS_PER_WORD == HOST_BITS_PER_INT)))))
++
++/* Use --as-needed -lgcc_s for eh support.  */
++#ifdef HAVE_LD_AS_NEEDED
++#define USE_LD_AS_NEEDED 1
++#endif
Index: lang/gcc/8/patches/patch-gcc_config_rs6000_sysv4_h
===================================================================
RCS file: /cvs/ports/lang/gcc/8/patches/patch-gcc_config_rs6000_sysv4_h,v
retrieving revision 1.1.1.1
diff -u -p -r1.1.1.1 patch-gcc_config_rs6000_sysv4_h
--- lang/gcc/8/patches/patch-gcc_config_rs6000_sysv4_h 4 Jan 2019 15:50:39 -0000 1.1.1.1
+++ lang/gcc/8/patches/patch-gcc_config_rs6000_sysv4_h 18 Jan 2021 17:06:37 -0000
@@ -2,7 +2,26 @@ $OpenBSD: patch-gcc_config_rs6000_sysv4_
 Index: gcc/config/rs6000/sysv4.h
 --- gcc/config/rs6000/sysv4.h.orig
 +++ gcc/config/rs6000/sysv4.h
-@@ -387,6 +387,7 @@ do { \
+@@ -87,7 +87,8 @@ do { \
+   else if (!strcmp (rs6000_abi_name, "aixdesc")) \
+     rs6000_current_abi = ABI_AIX; \
+   else if (!strcmp (rs6000_abi_name, "freebsd") \
+-   || !strcmp (rs6000_abi_name, "linux")) \
++   || !strcmp (rs6000_abi_name, "linux") \
++   || !strcmp (rs6000_abi_name, "openbsd")) \
+     { \
+       if (TARGET_64BIT) \
+ rs6000_current_abi = ABI_AIX; \
+@@ -96,8 +97,6 @@ do { \
+     } \
+   else if (!strcmp (rs6000_abi_name, "netbsd")) \
+     rs6000_current_abi = ABI_V4; \
+-  else if (!strcmp (rs6000_abi_name, "openbsd")) \
+-    rs6000_current_abi = ABI_V4; \
+   else if (!strcmp (rs6000_abi_name, "i960-old")) \
+     { \
+       rs6000_current_abi = ABI_V4; \
+@@ -387,6 +386,7 @@ do { \
    asm_fprintf (FILE, "%L%s", PREFIX)
 
  /* Globalizing directive for a label.  */
@@ -10,7 +29,7 @@ Index: gcc/config/rs6000/sysv4.h
  #define GLOBAL_ASM_OP "\t.globl "
 
  /* This says how to output assembler code to declare an
-@@ -851,13 +852,14 @@ ncrtn.o%s"
+@@ -851,13 +851,14 @@ ncrtn.o%s"
 
  /* OpenBSD support.  */
  #ifndef LIB_OPENBSD_SPEC
@@ -28,7 +47,7 @@ Index: gcc/config/rs6000/sysv4.h
  #endif
 
  #ifndef ENDFILE_OPENBSD_SPEC
-@@ -874,7 +876,7 @@ ncrtn.o%s"
+@@ -874,7 +875,7 @@ ncrtn.o%s"
  #endif
 
  #ifndef CPP_OS_OPENBSD_SPEC
Index: lang/gcc/8/patches/patch-gcc_configure
===================================================================
RCS file: /cvs/ports/lang/gcc/8/patches/patch-gcc_configure,v
retrieving revision 1.2
diff -u -p -r1.2 patch-gcc_configure
--- lang/gcc/8/patches/patch-gcc_configure 4 Sep 2020 09:55:34 -0000 1.2
+++ lang/gcc/8/patches/patch-gcc_configure 18 Jan 2021 17:06:37 -0000
@@ -20,7 +20,26 @@ Index: gcc/configure
    shlibpath_var=LD_LIBRARY_PATH
    if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
      case $host_os in
-@@ -29242,6 +29242,7 @@ else
+@@ -28864,7 +28864,7 @@ $as_echo "#define HAVE_LD_PPC_GNU_ATTR_LONG_DOUBLE 1"
+ esac
+
+ case "$target:$tm_file" in
+-  powerpc64-*-freebsd* | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h*)
++  powerpc64-*-freebsd* | powerpc64*-*-linux* | powerpc*-*-linux*rs6000/biarch64.h* | powerpc64*-openbsd*)
+   case "$target" in
+      *le-*-linux*)
+      emul_name="-melf64lppc"
+@@ -28875,6 +28875,9 @@ case "$target:$tm_file" in
+      *-*-freebsd*)
+      emul_name="-melf64ppc_fbsd"
+       ;;
++     *-*-openbsd*)
++     gcc_cv_ld_large_toc=yes
++      ;;
+   esac
+     { $as_echo "$as_me:${as_lineno-$LINENO}: checking linker support for omitting dot symbols" >&5
+ $as_echo_n "checking linker support for omitting dot symbols... " >&6; }
+@@ -29242,6 +29245,7 @@ else
  fi
 
          ;;
@@ -28,7 +47,7 @@ Index: gcc/configure
         *) gcc_cv_libc_provides_ssp=no ;;
      esac
    fi
-@@ -29262,6 +29263,7 @@ if test "${enable_default_ssp+set}" = set; then :
+@@ -29262,6 +29266,7 @@ if test "${enable_default_ssp+set}" = set; then :
  if test x$gcc_cv_libc_provides_ssp = xyes; then
    case "$target" in
      ia64*-*-*) enable_default_ssp=no ;;
Index: lang/gcc/8/patches/patch-gcc_tree-vect-loop_c
===================================================================
RCS file: lang/gcc/8/patches/patch-gcc_tree-vect-loop_c
diff -N lang/gcc/8/patches/patch-gcc_tree-vect-loop_c
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ lang/gcc/8/patches/patch-gcc_tree-vect-loop_c 18 Jan 2021 17:06:37 -0000
@@ -0,0 +1,14 @@
+$OpenBSD$
+
+Index: gcc/tree-vect-loop.c
+--- gcc/tree-vect-loop.c.orig
++++ gcc/tree-vect-loop.c
+@@ -55,6 +55,8 @@ along with GCC; see the file COPYING3.  If not see
+ #include "vec-perm-indices.h"
+ #include "tree-eh.h"
+
++#define vec_step vec_step_
++
+ /* Loop Vectorization Pass.
+
+    This pass tries to vectorize loops.
Index: lang/gcc/8/patches/patch-libgcc_config_host
===================================================================
RCS file: /cvs/ports/lang/gcc/8/patches/patch-libgcc_config_host,v
retrieving revision 1.2
diff -u -p -r1.2 patch-libgcc_config_host
--- lang/gcc/8/patches/patch-libgcc_config_host 11 Aug 2019 20:53:07 -0000 1.2
+++ lang/gcc/8/patches/patch-libgcc_config_host 18 Jan 2021 17:06:37 -0000
@@ -44,7 +44,7 @@ Index: libgcc/config.host
  powerpc-*-netbsd*)
  tmake_file="$tmake_file rs6000/t-netbsd rs6000/t-crtstuff"
 + ;;
-+powerpc-*-openbsd*)
++powerpc*-*-openbsd*)
 + tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-crtstuff rs6000/t-openbsd"
  ;;
  powerpc-*-eabispe*)