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gerrit.openbmc.org / stefanberger / openbmc / 353dbdaaa97d78d064f0638221f57311f21f0bb3 / . / yocto-poky / meta / recipes-devtools / elfutils / elfutils-0.163 / m68k_backend.diff
blob: f5b566f2d52095967038a16da8e6f2f152de0b01 [file] [log] [blame]
From: Kurt Roeckx <kurt@roeckx.be>
From: Thorsten Glaser <tg@mirbsd.de>
Subject: m68k support
Written by Kurt Roeckx, except for the retval support which was written
by Thorsten Glaser
Index: elfutils-0.158/backends/m68k_init.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ elfutils-0.158/backends/m68k_init.c 2014-04-21 11:14:23.813175704 +0000
@@ -0,0 +1,50 @@
+/* Initialization of m68k specific backend library.
+ Copyright (C) 2007 Kurt Roeckx <kurt@roeckx.be>
+
+ This software 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; version 2 of the License.
+
+ This softare 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 this software; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#define BACKEND m68k_
+#define RELOC_PREFIX R_68K_
+#include "libebl_CPU.h"
+
+/* This defines the common reloc hooks based on m68k_reloc.def. */
+#include "common-reloc.c"
+
+
+const char *
+m68k_init (elf, machine, eh, ehlen)
+ Elf *elf __attribute__ ((unused));
+ GElf_Half machine __attribute__ ((unused));
+ Ebl *eh;
+ size_t ehlen;
+{
+ /* Check whether the Elf_BH object has a sufficent size. */
+ if (ehlen < sizeof (Ebl))
+ return NULL;
+
+ /* We handle it. */
+ eh->name = "m68k";
+ m68k_init_reloc (eh);
+ HOOK (eh, reloc_simple_type);
+ HOOK (eh, return_value_location);
+ HOOK (eh, register_info);
+
+ return MODVERSION;
+}
Index: elfutils-0.158/backends/m68k_regs.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ elfutils-0.158/backends/m68k_regs.c 2014-04-21 11:14:23.813175704 +0000
@@ -0,0 +1,106 @@
+/* Register names and numbers for m68k DWARF.
+ Copyright (C) 2007 Kurt Roeckx <kurt@roeckx.be>
+
+ This software 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; version 2 of the License.
+
+ This software 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 this software; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
+
+ */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <string.h>
+#include <dwarf.h>
+
+#define BACKEND m68k_
+#include "libebl_CPU.h"
+
+ssize_t
+m68k_register_info (Ebl *ebl __attribute__ ((unused)),
+ int regno, char *name, size_t namelen,
+ const char **prefix, const char **setname,
+ int *bits, int *type)
+{
+ if (name == NULL)
+ return 25;
+
+ if (regno < 0 || regno > 24 || namelen < 5)
+ return -1;
+
+ *prefix = "%";
+ *bits = 32;
+ *type = (regno < 8 ? DW_ATE_signed
+ : regno < 16 ? DW_ATE_address : DW_ATE_float);
+
+ if (regno < 8)
+ {
+ *setname = "integer";
+ }
+ else if (regno < 16)
+ {
+ *setname = "address";
+ }
+ else if (regno < 24)
+ {
+ *setname = "FPU";
+ }
+ else
+ {
+ *setname = "address";
+ *type = DW_ATE_address;
+ }
+
+ switch (regno)
+ {
+ case 0 ... 7:
+ name[0] = 'd';
+ name[1] = regno + '0';
+ namelen = 2;
+ break;
+
+ case 8 ... 13:
+ name[0] = 'a';
+ name[1] = regno - 8 + '0';
+ namelen = 2;
+ break;
+
+ case 14:
+ name[0] = 'f';
+ name[1] = 'p';
+ namelen = 2;
+ break;
+
+ case 15:
+ name[0] = 's';
+ name[1] = 'p';
+ namelen = 2;
+ break;
+
+ case 16 ... 23:
+ name[0] = 'f';
+ name[1] = 'p';
+ name[2] = regno - 16 + '0';
+ namelen = 3;
+ break;
+
+ case 24:
+ name[0] = 'p';
+ name[1] = 'c';
+ namelen = 2;
+ }
+
+ name[namelen++] = '\0';
+ return namelen;
+}
+
Index: elfutils-0.158/backends/m68k_reloc.def
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ elfutils-0.158/backends/m68k_reloc.def 2014-04-21 11:14:23.813175704 +0000
@@ -0,0 +1,45 @@
+/* List the relocation types for m68k. -*- C -*-
+ Copyright (C) 2007 Kurt Roeckx <kurt@roeckx.be>
+
+ This software 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; version 2 of the License.
+
+ This software 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 this software; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
+*/
+
+/* NAME, REL|EXEC|DYN */
+
+RELOC_TYPE (NONE, 0)
+RELOC_TYPE (32, REL|EXEC|DYN)
+RELOC_TYPE (16, REL)
+RELOC_TYPE (8, REL)
+RELOC_TYPE (PC32, REL|EXEC|DYN)
+RELOC_TYPE (PC16, REL)
+RELOC_TYPE (PC8, REL)
+RELOC_TYPE (GOT32, REL)
+RELOC_TYPE (GOT16, REL)
+RELOC_TYPE (GOT8, REL)
+RELOC_TYPE (GOT32O, REL)
+RELOC_TYPE (GOT16O, REL)
+RELOC_TYPE (GOT8O, REL)
+RELOC_TYPE (PLT32, REL)
+RELOC_TYPE (PLT16, REL)
+RELOC_TYPE (PLT8, REL)
+RELOC_TYPE (PLT32O, REL)
+RELOC_TYPE (PLT16O, REL)
+RELOC_TYPE (PLT8O, REL)
+RELOC_TYPE (COPY, EXEC)
+RELOC_TYPE (GLOB_DAT, EXEC|DYN)
+RELOC_TYPE (JMP_SLOT, EXEC|DYN)
+RELOC_TYPE (RELATIVE, EXEC|DYN)
+RELOC_TYPE (GNU_VTINHERIT, REL)
+RELOC_TYPE (GNU_VTENTRY, REL)
+
Index: elfutils-0.158/libelf/elf.h
===================================================================
--- elfutils-0.158.orig/libelf/elf.h 2014-04-21 11:14:23.813175704 +0000
+++ elfutils-0.158/libelf/elf.h 2014-04-21 11:14:23.813175704 +0000
@@ -1157,6 +1157,9 @@
#define R_68K_GLOB_DAT 20 /* Create GOT entry */
#define R_68K_JMP_SLOT 21 /* Create PLT entry */
#define R_68K_RELATIVE 22 /* Adjust by program base */
+/* The next 2 are GNU extensions to enable C++ vtable garbage collection. */
+#define R_68K_GNU_VTINHERIT 23
+#define R_68K_GNU_VTENTRY 24
#define R_68K_TLS_GD32 25 /* 32 bit GOT offset for GD */
#define R_68K_TLS_GD16 26 /* 16 bit GOT offset for GD */
#define R_68K_TLS_GD8 27 /* 8 bit GOT offset for GD */
Index: elfutils-0.158/backends/Makefile.am
===================================================================
--- elfutils-0.158.orig/backends/Makefile.am 2014-04-21 11:14:23.813175704 +0000
+++ elfutils-0.158/backends/Makefile.am 2014-04-21 11:14:48.344621167 +0000
@@ -33,12 +33,12 @@
modules = i386 sh x86_64 ia64 alpha arm aarch64 sparc ppc ppc64 s390 \
- tilegx parisc mips
+ tilegx parisc mips m68k
libebl_pic = libebl_i386_pic.a libebl_sh_pic.a libebl_x86_64_pic.a \
libebl_ia64_pic.a libebl_alpha_pic.a libebl_arm_pic.a \
libebl_aarch64_pic.a libebl_sparc_pic.a libebl_ppc_pic.a \
libebl_ppc64_pic.a libebl_s390_pic.a libebl_tilegx_pic.a \
- libebl_parisc_pic.a libebl_mips_pic.a
+ libebl_parisc_pic.a libebl_mips_pic.a libebl_m68k_pic.a
noinst_LIBRARIES = $(libebl_pic)
noinst_DATA = $(libebl_pic:_pic.a=.so)
@@ -125,6 +125,10 @@
libebl_mips_pic_a_SOURCES = $(mips_SRCS)
am_libebl_mips_pic_a_OBJECTS = $(mips_SRCS:.c=.os)
+m68k_SRCS = m68k_init.c m68k_symbol.c m68k_regs.c m68k_retval.c
+libebl_m68k_pic_a_SOURCES = $(m68k_SRCS)
+am_libebl_m68k_pic_a_OBJECTS = $(m68k_SRCS:.c=.os)
+
libebl_%.so libebl_%.map: libebl_%_pic.a $(libelf) $(libdw)
@rm -f $(@:.so=.map)
echo 'ELFUTILS_$(PACKAGE_VERSION) { global: $*_init; local: *; };' \
Index: elfutils-0.158/backends/m68k_symbol.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ elfutils-0.158/backends/m68k_symbol.c 2014-04-21 11:14:23.813175704 +0000
@@ -0,0 +1,43 @@
+/* m68k specific symbolic name handling.
+ Copyright (C) 2007 Kurt Roeckx <kurt@roeckx.be>
+
+ This software 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; version 2 of the License.
+
+ This software 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 this software; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
+*/
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <elf.h>
+#include <stddef.h>
+
+#define BACKEND m68k_
+#include "libebl_CPU.h"
+
+/* Check for the simple reloc types. */
+Elf_Type
+m68k_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type)
+{
+ switch (type)
+ {
+ case R_68K_32:
+ return ELF_T_SWORD;
+ case R_68K_16:
+ return ELF_T_HALF;
+ case R_68K_8:
+ return ELF_T_BYTE;
+ default:
+ return ELF_T_NUM;
+ }
+}
Index: elfutils-0.158/backends/m68k_retval.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ elfutils-0.158/backends/m68k_retval.c 2014-04-21 11:14:23.813175704 +0000
@@ -0,0 +1,172 @@
+/* Function return value location for Linux/m68k ABI.
+ Copyright (C) 2005-2010 Red Hat, Inc.
+ Copyright (c) 2011 Thorsten Glaser, Debian.
+ This file is part of Red Hat elfutils.
+
+ Red Hat elfutils 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; version 2 of the License.
+
+ Red Hat elfutils 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 Red Hat elfutils; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
+
+ Red Hat elfutils is an included package of the Open Invention Network.
+ An included package of the Open Invention Network is a package for which
+ Open Invention Network licensees cross-license their patents. No patent
+ license is granted, either expressly or impliedly, by designation as an
+ included package. Should you wish to participate in the Open Invention
+ Network licensing program, please visit www.openinventionnetwork.com
+ <http://www.openinventionnetwork.com>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <assert.h>
+#include <dwarf.h>
+
+#define BACKEND m68k_
+#include "libebl_CPU.h"
+
+
+/* %d0, or pair %d0, %d1, or %a0 */
+static const Dwarf_Op loc_intreg[] =
+ {
+ { .atom = DW_OP_reg0 }, { .atom = DW_OP_piece, .number = 4 },
+ { .atom = DW_OP_reg1 }, { .atom = DW_OP_piece, .number = 4 },
+ };
+static const Dwarf_Op loc_ptrreg[] =
+ {
+ { .atom = DW_OP_reg8 },
+ };
+#define nloc_intreg 1
+#define nloc_intregpair 4
+#define nloc_ptrreg 1
+
+/* %f0 */
+static const Dwarf_Op loc_fpreg[] =
+ {
+ { .atom = DW_OP_reg16 }
+ };
+#define nloc_fpreg 1
+
+/* Structures are a bit more complicated - small structures are returned
+ in %d0 / %d1 (-freg-struct-return which is enabled by default), large
+ structures use %a1 (in constrast to the SYSV psABI which says %a0) as
+ reentrant storage space indicator. */
+static const Dwarf_Op loc_aggregate[] =
+ {
+ { .atom = DW_OP_breg9, .number = 0 }
+ };
+#define nloc_aggregate 1
+
+int
+m68k_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
+{
+ Dwarf_Word size;
+
+ /* Start with the function's type, and get the DW_AT_type attribute,
+ which is the type of the return value. */
+
+ Dwarf_Attribute attr_mem;
+ Dwarf_Attribute *attr = dwarf_attr_integrate (functypedie, DW_AT_type,
+ &attr_mem);
+ if (attr == NULL)
+ /* The function has no return value, like a `void' function in C. */
+ return 0;
+
+ Dwarf_Die die_mem;
+ Dwarf_Die *typedie = dwarf_formref_die (attr, &die_mem);
+ int tag = dwarf_tag (typedie);
+
+ /* Follow typedefs and qualifiers to get to the actual type. */
+ while (tag == DW_TAG_typedef
+ || tag == DW_TAG_const_type || tag == DW_TAG_volatile_type
+ || tag == DW_TAG_restrict_type)
+ {
+ attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem);
+ typedie = dwarf_formref_die (attr, &die_mem);
+ tag = dwarf_tag (typedie);
+ }
+
+ switch (tag)
+ {
+ case -1:
+ return -1;
+
+ case DW_TAG_subrange_type:
+ if (! dwarf_hasattr_integrate (typedie, DW_AT_byte_size))
+ {
+ attr = dwarf_attr_integrate (typedie, DW_AT_type, &attr_mem);
+ typedie = dwarf_formref_die (attr, &die_mem);
+ tag = dwarf_tag (typedie);
+ }
+ /* Fall through. */
+
+ case DW_TAG_base_type:
+ case DW_TAG_enumeration_type:
+ case DW_TAG_pointer_type:
+ case DW_TAG_ptr_to_member_type:
+ if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_byte_size,
+ &attr_mem), &size) != 0)
+ {
+ if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
+ size = 4;
+ else
+ return -1;
+ }
+ if (tag == DW_TAG_pointer_type || tag == DW_TAG_ptr_to_member_type)
+ {
+ *locp = loc_ptrreg;
+ return nloc_ptrreg;
+ }
+ if (tag == DW_TAG_base_type)
+ {
+ Dwarf_Word encoding;
+ if (dwarf_formudata (dwarf_attr_integrate (typedie, DW_AT_encoding,
+ &attr_mem),
+ &encoding) != 0)
+ return -1;
+ if (encoding == DW_ATE_float)
+ {
+ /* XXX really 10? */
+ if (size > 10)
+ return -2;
+ *locp = loc_fpreg;
+ return nloc_fpreg;
+ }
+ }
+ if (size <= 8)
+ {
+ intreg:
+ /* XXX check endianness of dword pair, int64 vs aggregate */
+ *locp = loc_intreg;
+ return size <= 4 ? nloc_intreg : nloc_intregpair;
+ }
+
+ aggregate:
+ *locp = loc_aggregate;
+ return nloc_aggregate;
+
+ case DW_TAG_structure_type:
+ case DW_TAG_class_type:
+ case DW_TAG_union_type:
+ case DW_TAG_array_type:
+ if (dwarf_aggregate_size (typedie, &size) == 0
+ && size > 0 && size <= 8)
+ /* not accurate for a struct whose only member is a float */
+ goto intreg;
+ goto aggregate;
+ }
+
+ /* XXX We don't have a good way to return specific errors from ebl calls.
+ This value means we do not understand the type, but it is well-formed
+ DWARF and might be valid. */
+ return -2;
+}