[patch] Add NetBSD/hppa target

coypu@sdf.org coypu@sdf.org
Fri Jun 14 15:44:00 GMT 2019


This adds netbsd/hppa support. I tested it on the shiny new QEMU-git
which can now boot NetBSD too :-)

Files are very similar to the linux code.

Please let me know if any changes need to be made.

Matt Thomas <matt@3am-software.com>
Nick Hudson <nick@nthcliff.demon.co.uk>
Matthew Green <mrg@eterna.com.au>
Maya Rashish <coypu@sdf.org>

gcc/ChangeLog:
	config.gcc (hppa*-*-netbsd*): New target.
	config/pa/pa-netbsd.h: New file.
	config/pa/pa32-netbsd.h: New file.

libgcc/ChangeLog:
	config.host (hppa*-*-netbsd*): New case.
	config/pa/t-netbsd: New file.

---
 gcc/config.gcc              |   8 +++
 gcc/config/pa/pa-netbsd.h   | 137 ++++++++++++++++++++++++++++++++++++
 gcc/config/pa/pa32-netbsd.h |  37 ++++++++++
 libgcc/config.host          |   3 +
 libgcc/config/pa/t-netbsd   |   9 +++
 5 files changed, 194 insertions(+)
 create mode 100644 gcc/config/pa/pa-netbsd.h
 create mode 100644 gcc/config/pa/pa32-netbsd.h
 create mode 100644 libgcc/config/pa/t-netbsd

diff --git a/gcc/config.gcc b/gcc/config.gcc
index 76bb316942d..ba93bb41ec8 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -1481,6 +1481,14 @@ hppa*-*-openbsd*)
 	gas=yes
 	gnu_ld=yes
 	;;
+hppa*-*-netbsd*)
+	target_cpu_default="MASK_PA_11|MASK_NO_SPACE_REGS"
+	tm_file="${tm_file} dbxelf.h elfos.h ${nbsd_tm_file} \
+		 pa/pa-netbsd.h pa/pa32-regs.h pa/pa32-netbsd.h"
+	tmake_file="${tmake_file}"
+	tm_defines="${tm_defines} CHAR_FAST8=1 SHORT_FAST16=1"
+	extra_options="${extra_options} netbsd.opt netbsd-elf.opt"
+	;;
 hppa[12]*-*-hpux10*)
 	case ${target} in
 	hppa1.1-*-* | hppa2*-*-*)
diff --git a/gcc/config/pa/pa-netbsd.h b/gcc/config/pa/pa-netbsd.h
new file mode 100644
index 00000000000..88790987561
--- /dev/null
+++ b/gcc/config/pa/pa-netbsd.h
@@ -0,0 +1,137 @@
+/* Definitions for PA_RISC with ELF format
+   Copyright (C) 1999-2019 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						\
+    {						\
+	NETBSD_OS_CPP_BUILTINS_ELF();	\
+	builtin_assert ("machine=bigendian");	\
+    }						\
+  while (0)
+
+#undef CPP_SPEC
+#define CPP_SPEC NETBSD_CPP_SPEC
+
+#undef ASM_SPEC
+#define ASM_SPEC \
+  "%{v:-V} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
+
+#undef EXTRA_SPECS
+#define EXTRA_SPECS NETBSD_SUBTARGET_EXTRA_SPECS
+#undef SUBTARGET_EXTRA_SPECS
+
+#define NETBSD_ENTRY_POINT "__start"
+
+#undef LINK_SPEC
+#define LINK_SPEC NETBSD_LINK_SPEC_ELF
+
+/* NetBSD profiling functions don't need gcc to allocate counters.  */
+#define NO_DEFERRED_PROFILE_COUNTERS 1
+
+/* Define the strings used for the special svr4 .type and .size directives.
+   These strings generally do not vary from one system running svr4 to
+   another, but if a given system (e.g. m88k running svr) needs to use
+   different pseudo-op names for these, they may be overridden in the
+   file which includes this one.  */
+
+#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"
+
+#define TARGET_ASM_FILE_START pa_linux_file_start
+
+/* 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) \
+  fprintf (FILE, "\t.word .L%d\n", VALUE)
+
+#undef ASM_OUTPUT_ADDR_DIFF_ELT
+#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
+  fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL)
+
+/* 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
+/* Globalizing directive for a label.  */
+#define GLOBAL_ASM_OP ".globl "
+
+/* 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)
+
+/* NetBSD always uses gas.  */
+#undef TARGET_GAS
+#define TARGET_GAS 1
+
+/* Use long int for these type to make hppa64 compatibility easier.  */
+#undef SIZE_TYPE
+#define SIZE_TYPE "long unsigned int"
+
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE "long int"
+
+#if 0
+#undef TARGET_SYNC_LIBCALL
+#define TARGET_SYNC_LIBCALL 1
+#endif
diff --git a/gcc/config/pa/pa32-netbsd.h b/gcc/config/pa/pa32-netbsd.h
new file mode 100644
index 00000000000..29837ce6f12
--- /dev/null
+++ b/gcc/config/pa/pa32-netbsd.h
@@ -0,0 +1,37 @@
+/* Definitions for PA_RISC with ELF-32 format
+   Copyright (C) 2000-2019 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 2, 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 COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* Turn off various SOM crap we don't want.  */
+#undef TARGET_ELF32
+#define TARGET_ELF32 1
+
+/* The libcall __canonicalize_funcptr_for_compare is referenced in
+   crtend.o and the reference isn't resolved in objects that don't
+   compare function pointers.  Thus, we need to play games to provide
+   a reference in crtbegin.o.  The rest of the define is the same
+   as that in crtstuff.c  */
+#define CTOR_LIST_BEGIN \
+  asm (".type __canonicalize_funcptr_for_compare,@function\n"		\
+"	.text\n"							\
+"	.word __canonicalize_funcptr_for_compare-$PIC_pcrel$0");	\
+  STATIC func_ptr __CTOR_LIST__[1]					\
+    __attribute__ ((__used__, section(".ctors"),			\
+		    aligned(sizeof(func_ptr))))				\
+    = { (func_ptr) (-1) }
diff --git a/libgcc/config.host b/libgcc/config.host
index 91fed5fa473..602fc97a321 100644
--- a/libgcc/config.host
+++ b/libgcc/config.host
@@ -616,6 +616,9 @@ hppa[12]*-*-hpux11*)
 hppa*-*-openbsd*)
 	tmake_file="$tmake_file pa/t-openbsd"
 	;;
+hppa*-*-netbsd*)
+	tmake_file="$tmake_file pa/t-netbsd"
+	;;
 i[34567]86-*-darwin*)
 	tmake_file="$tmake_file i386/t-crtpc t-crtfm i386/t-msabi"
 	tm_file="$tm_file i386/darwin-lib.h"
diff --git a/libgcc/config/pa/t-netbsd b/libgcc/config/pa/t-netbsd
new file mode 100644
index 00000000000..8b99068ce42
--- /dev/null
+++ b/libgcc/config/pa/t-netbsd
@@ -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
-- 
2.21.0




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