Most bits are stolen from Linux, but there are a few subtle
differences since our assembler is configured to be slightly more
HP-UX-ish.
libgcc/:
2012-09-06 Mark Kettenis <kette...@openbsd.org>
* config.host (hppa-*-openbsd*): New target.
* config/pa/t-openbsd: New file.
gcc/:
2012-09-06 Mark Kettenis <kette...@openbsd.org>
* config.gcc (hppa*-*-openbsd*): New target.
* config/pa/pa-openbsd.h: New file.
* config/pa/pa32-openbsd.h: New file.
* config/host-openbsd.c (TRY_EXCEPT_VM_SPACE): Define for
OpenBSD/hppa.
Index: libgcc/config/pa/t-openbsd
===================================================================
--- libgcc/config/pa/t-openbsd (revision 0)
+++ libgcc/config/pa/t-openbsd (working copy)
@@ -0,0 +1,9 @@
+#Plug millicode routines into libgcc.a We want these on both native and
+#cross compiles. We use the "64-bit" routines because the "32-bit" code
+#is broken for certain corner cases.
+LIB1ASMSRC = pa/milli64.S
+LIB1ASMFUNCS = _divI _divU _remI _remU _div_const _mulI _dyncall
+
+HOST_LIBGCC2_CFLAGS += -DELF=1 -DLINUX=1
+
+LIB2ADD = $(srcdir)/config/pa/fptr.c
Index: libgcc/config.host
===================================================================
--- libgcc/config.host (revision 190881)
+++ libgcc/config.host (working copy)
@@ -496,6 +496,9 @@
extra_parts="libgcc_stub.a"
md_unwind_header=pa/hpux-unwind.h
;;
+hppa*-*-openbsd*)
+ tmake_file="$tmake_file pa/t-openbsd"
+ ;;
i[34567]86-*-darwin*)
tmake_file="$tmake_file i386/t-crtpc i386/t-crtfm"
tm_file="$tm_file i386/darwin-lib.h"
Index: gcc/config/pa/pa-openbsd.h
===================================================================
--- gcc/config/pa/pa-openbsd.h (revision 0)
+++ gcc/config/pa/pa-openbsd.h (working copy)
@@ -0,0 +1,162 @@
+/* Definitions for PA_RISC with ELF format
+ Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010,
+ 2011
+ 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/>. */
+
+
+#undef TARGET_OS_CPP_BUILTINS
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ OPENBSD_OS_CPP_BUILTINS(); \
+ builtin_assert ("machine=bigendian"); \
+ } \
+ while (0)
+
+/* Our profiling scheme doesn't LP labels and counter words. */
+#define NO_DEFERRED_PROFILE_COUNTERS 1
+
+#undef STRING_ASM_OP
+#define STRING_ASM_OP "\t.stringz\t"
+
+#define TEXT_SECTION_ASM_OP "\t.text"
+#define DATA_SECTION_ASM_OP "\t.data"
+#define BSS_SECTION_ASM_OP "\t.section\t.bss"
+
+/* We want local labels to start with period if made with asm_fprintf. */
+#undef LOCAL_LABEL_PREFIX
+#define LOCAL_LABEL_PREFIX "."
+
+/* Define these to generate the Linux/ELF/SysV style of internal
+ labels all the time - i.e. to be compatible with
+ ASM_GENERATE_INTERNAL_LABEL in <elfos.h>. Compare these with the
+ ones in pa.h and note the lack of dollar signs in these. FIXME:
+ shouldn't we fix pa.h to use ASM_GENERATE_INTERNAL_LABEL instead? */
+
+#undef ASM_OUTPUT_ADDR_VEC_ELT
+#define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
+ if (TARGET_BIG_SWITCH) \
+ fprintf (FILE, "\t.word .L%d\n", VALUE); \
+ else \
+ fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
+
+#undef ASM_OUTPUT_ADDR_DIFF_ELT
+#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
+ if (TARGET_BIG_SWITCH) \
+ fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL); \
+ else \
+ fprintf (FILE, "\tb .L%d\n\tnop\n", VALUE)
+
+/* Use the default. */
+#undef ASM_OUTPUT_LABEL
+
+/* NOTE: (*targetm.asm_out.internal_label)() is defined for us by elfos.h, and
+ does what we want (i.e. uses colons). It must be compatible with
+ ASM_GENERATE_INTERNAL_LABEL(), so do not define it here. */
+
+/* Use the default. */
+#undef ASM_OUTPUT_INTERNAL_LABEL
+
+/* Use the default. */
+#undef TARGET_ASM_GLOBALIZE_LABEL
+
+/* FIXME: Hacked from the <elfos.h> one so that we avoid multiple
+ labels in a function declaration (since pa.c seems determined to do
+ it differently) */
+
+#undef ASM_DECLARE_FUNCTION_NAME
+#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
+ do \
+ { \
+ ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \
+ ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
+ } \
+ while (0)
+
+/* As well as globalizing the label, we need to encode the label
+ to ensure a plabel is generated in an indirect call. */
+
+#undef ASM_OUTPUT_EXTERNAL_LIBCALL
+#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
+ do \
+ { \
+ if (!FUNCTION_NAME_P (XSTR (FUN, 0))) \
+ pa_encode_label (FUN); \
+ (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \
+ } \
+ while (0)
+
+/* This says how to output an assembler line to define a global common symbol
+ with size SIZE (in bytes) and alignment ALIGN (in bits). */
+
+#undef ASM_OUTPUT_ALIGNED_COMMON
+#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
+ pa_asm_output_aligned_common (FILE, NAME, SIZE, ALIGN)
+
+/* This says how to output an assembler line to define a local common symbol
+ with size SIZE (in bytes) and alignment ALIGN (in bits). This macro
+ controls how the assembler definitions of uninitialized static variables
+ are output. */
+
+#undef ASM_OUTPUT_ALIGNED_LOCAL
+#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
+ pa_asm_output_aligned_local (FILE, NAME, SIZE, ALIGN)
+
+/* OpenBSD always uses gas. */
+#undef TARGET_GAS
+#define TARGET_GAS 1
+
+/* Layout of source language data types. */
+
+/* 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
+
+#undef WINT_TYPE
+#define WINT_TYPE "int"
+
+#undef LINK_SPEC
+#define LINK_SPEC \
+ "%{!shared:%{!nostdlib:%{!r:%{!e*:-e __start}}}} \
+ %{shared:-shared} %{R*} \
+ %{static:-Bstatic} \
+ %{!static:-Bdynamic} \
+ %{assert*} \
+ -dynamic-linker /usr/libexec/ld.so"
+
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC "\
+ %{!shared: %{pg:gcrt0%O%s} %{!pg:%{p:gcrt0%O%s} %{!p:crt0%O%s}} \
+ crtbegin%O%s} %{shared:crtbeginS%O%s}"
+
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC "%{!shared:crtend%O%s} %{shared:crtendS%O%s}"
+
+#define OBSD_HAS_CORRECT_SPECS
+
+#define HAVE_ENABLE_EXECUTE_STACK
Index: gcc/config/pa/pa32-openbsd.h
===================================================================
--- gcc/config/pa/pa32-openbsd.h (revision 0)
+++ gcc/config/pa/pa32-openbsd.h (working copy)
@@ -0,0 +1,23 @@
+/* Definitions for PA_RISC with ELF-32 format
+ Copyright (C) 2000, 2002, 2004, 2006, 2007, 2010, 2011
+ 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/>. */
+
+/* Turn off various SOM crap we don't want. */
+#undef TARGET_ELF32
+#define TARGET_ELF32 1
Index: gcc/config/host-openbsd.c
===================================================================
--- gcc/config/host-openbsd.c (revision 190881)
+++ gcc/config/host-openbsd.c (working copy)
@@ -33,6 +33,8 @@
that's probably free. */
#if defined(__amd64__)
# define TRY_EMPTY_VM_SPACE 0x400000000000
+#elif defined(__hppa__)
+# define TRY_EMPTY_VM_SPACE 0xb0000000
#elif defined(__i386__)
# define TRY_EMPTY_VM_SPACE 0xb0000000
#else
Index: gcc/config.gcc
===================================================================
--- gcc/config.gcc (revision 190881)
+++ gcc/config.gcc (working copy)
@@ -1012,10 +1012,15 @@
tm_file="${tm_file} dbxelf.h elfos.h gnu-user.h linux.h glibc-stdint.h
pa/pa-linux.h \
pa/pa32-regs.h pa/pa32-linux.h"
;;
-# port not yet contributed.
-#hppa*-*-openbsd*)
-# target_cpu_default="MASK_PA_11"
-# ;;
+hppa*-*-openbsd*)
+ target_cpu_default="MASK_PA_11"
+ tm_file="${tm_file} dbxelf.h elfos.h openbsd.h openbsd-stdint.h
openbsd-libpthread.h \
+ pa/pa-openbsd.h pa/pa32-regs.h pa/pa32-openbsd.h"
+ tmake_file="${tmake_file} pa/t-openbsd"
+ extra_options="${extra_options} openbsd.opt"
+ gas=yes
+ gnu_ld=yes
+ ;;
hppa[12]*-*-hpux10*)
case ${target} in
hppa1.1-*-* | hppa2*-*-*)
