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poky/meta/recipes-devtools/elfutils/files/debian/mips_backend.diff
Alexander Kanavin e2848469ad elfutils: upgrade 0.177 -> 0.178 
Remove 0007-Fix-control-path-where-we-have-str-as-uninitialized-.patch
as issue fixed upstream.

Rebase other patches.

Adjust ptests, pass rate is now 100% again:

======================
All 206 tests passed
(6 tests were not run)
======================

(From OE-Core rev: dce25738c82335f2a92b32bd52f0c63e2dbd336e)

Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2020-01-16 22:33:09 +00:00

725 lines
23 KiB
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From 7e0b036d087dfff7f5e306f52fc78745f99454c3 Mon Sep 17 00:00:00 2001
From: Hongxu Jia <hongxu.jia@windriver.com>
Date: Wed, 21 Aug 2019 15:49:52 +0800
Subject: [PATCH] mips backend
Rebase to 0.177
Upstream-Status: Pending [from debian]
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
---
backends/Makefile.am | 6 +-
backends/mips_init.c | 59 ++++++++
backends/mips_regs.c | 104 +++++++++++++
backends/mips_reloc.def | 79 ++++++++++
backends/mips_retval.c | 321 ++++++++++++++++++++++++++++++++++++++++
backends/mips_symbol.c | 53 +++++++
libebl/eblopenbackend.c | 3 +
7 files changed, 623 insertions(+), 2 deletions(-)
create mode 100644 backends/mips_init.c
create mode 100644 backends/mips_regs.c
create mode 100644 backends/mips_reloc.def
create mode 100644 backends/mips_retval.c
create mode 100644 backends/mips_symbol.c
diff --git a/backends/Makefile.am b/backends/Makefile.am
index 4755f61..07d45d7 100644
--- a/backends/Makefile.am
+++ b/backends/Makefile.am
@@ -37,7 +37,7 @@ AM_CPPFLAGS += -I$(top_srcdir)/libebl -I$(top_srcdir)/libasm \
noinst_LIBRARIES = libebl_backends.a libebl_backends_pic.a
modules = i386 sh x86_64 ia64 alpha arm aarch64 sparc ppc ppc64 s390 \
- tilegx m68k bpf riscv csky parisc
+ tilegx m68k bpf riscv csky parisc mips
parisc_SRCS = parisc_init.c parisc_symbol.c parisc_regs.c parisc_retval.c
@@ -100,12 +100,14 @@ riscv_SRCS = riscv_init.c riscv_symbol.c riscv_cfi.c riscv_regs.c \
csky_SRCS = csky_attrs.c csky_init.c csky_symbol.c csky_cfi.c \
csky_regs.c csky_initreg.c csky_corenote.c
+mips_SRCS = mips_init.c mips_symbol.c mips_regs.c mips_retval.c
+
libebl_backends_a_SOURCES = $(i386_SRCS) $(sh_SRCS) $(x86_64_SRCS) \
$(ia64_SRCS) $(alpha_SRCS) $(arm_SRCS) \
$(aarch64_SRCS) $(sparc_SRCS) $(ppc_SRCS) \
$(ppc64_SRCS) $(s390_SRCS) $(tilegx_SRCS) \
$(m68k_SRCS) $(bpf_SRCS) $(riscv_SRCS) $(csky_SRCS) \
- $(parisc_SRCS)
+ $(parisc_SRCS) $(mips_SRCS)
libebl_backends_pic_a_SOURCES =
am_libebl_backends_pic_a_OBJECTS = $(libebl_backends_a_SOURCES:.c=.os)
diff --git a/backends/mips_init.c b/backends/mips_init.c
new file mode 100644
index 0000000..975c04e
--- /dev/null
+++ b/backends/mips_init.c
@@ -0,0 +1,59 @@
+/* Initialization of mips specific backend library.
+ Copyright (C) 2006 Red Hat, Inc.
+ 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
+
+#define BACKEND mips_
+#define RELOC_PREFIX R_MIPS_
+#include "libebl_CPU.h"
+
+/* This defines the common reloc hooks based on mips_reloc.def. */
+#include "common-reloc.c"
+
+const char *
+mips_init (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. */
+ if (machine == EM_MIPS)
+ eh->name = "MIPS R3000 big-endian";
+ else if (machine == EM_MIPS_RS3_LE)
+ eh->name = "MIPS R3000 little-endian";
+
+ mips_init_reloc (eh);
+ HOOK (eh, reloc_simple_type);
+ HOOK (eh, return_value_location);
+ HOOK (eh, register_info);
+
+ return MODVERSION;
+}
diff --git a/backends/mips_regs.c b/backends/mips_regs.c
new file mode 100644
index 0000000..44f86cb
--- /dev/null
+++ b/backends/mips_regs.c
@@ -0,0 +1,104 @@
+/* Register names and numbers for MIPS DWARF.
+ Copyright (C) 2006 Red Hat, Inc.
+ 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 <string.h>
+#include <dwarf.h>
+
+#define BACKEND mips_
+#include "libebl_CPU.h"
+
+ssize_t
+mips_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 66;
+
+ if (regno < 0 || regno > 65 || namelen < 4)
+ return -1;
+
+ *prefix = "$";
+
+ if (regno < 32)
+ {
+ *setname = "integer";
+ *type = DW_ATE_signed;
+ *bits = 32;
+ if (regno < 32 + 10)
+ {
+ name[0] = regno + '0';
+ namelen = 1;
+ }
+ else
+ {
+ name[0] = (regno / 10) + '0';
+ name[1] = (regno % 10) + '0';
+ namelen = 2;
+ }
+ }
+ else if (regno < 64)
+ {
+ *setname = "FPU";
+ *type = DW_ATE_float;
+ *bits = 32;
+ name[0] = 'f';
+ if (regno < 32 + 10)
+ {
+ name[1] = (regno - 32) + '0';
+ namelen = 2;
+ }
+ else
+ {
+ name[1] = (regno - 32) / 10 + '0';
+ name[2] = (regno - 32) % 10 + '0';
+ namelen = 3;
+ }
+ }
+ else if (regno == 64)
+ {
+ *type = DW_ATE_signed;
+ *bits = 32;
+ name[0] = 'h';
+ name[1] = 'i';
+ namelen = 2;
+ }
+ else
+ {
+ *type = DW_ATE_signed;
+ *bits = 32;
+ name[0] = 'l';
+ name[1] = 'o';
+ namelen = 2;
+ }
+
+ name[namelen++] = '\0';
+ return namelen;
+}
diff --git a/backends/mips_reloc.def b/backends/mips_reloc.def
new file mode 100644
index 0000000..4579970
--- /dev/null
+++ b/backends/mips_reloc.def
@@ -0,0 +1,79 @@
+/* List the relocation types for mips. -*- C -*-
+ Copyright (C) 2006 Red Hat, Inc.
+ 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>. */
+
+/* NAME, REL|EXEC|DYN */
+
+RELOC_TYPE (NONE, 0)
+RELOC_TYPE (16, 0)
+RELOC_TYPE (32, 0)
+RELOC_TYPE (REL32, 0)
+RELOC_TYPE (26, 0)
+RELOC_TYPE (HI16, 0)
+RELOC_TYPE (LO16, 0)
+RELOC_TYPE (GPREL16, 0)
+RELOC_TYPE (LITERAL, 0)
+RELOC_TYPE (GOT16, 0)
+RELOC_TYPE (PC16, 0)
+RELOC_TYPE (CALL16, 0)
+RELOC_TYPE (GPREL32, 0)
+
+RELOC_TYPE (SHIFT5, 0)
+RELOC_TYPE (SHIFT6, 0)
+RELOC_TYPE (64, 0)
+RELOC_TYPE (GOT_DISP, 0)
+RELOC_TYPE (GOT_PAGE, 0)
+RELOC_TYPE (GOT_OFST, 0)
+RELOC_TYPE (GOT_HI16, 0)
+RELOC_TYPE (GOT_LO16, 0)
+RELOC_TYPE (SUB, 0)
+RELOC_TYPE (INSERT_A, 0)
+RELOC_TYPE (INSERT_B, 0)
+RELOC_TYPE (DELETE, 0)
+RELOC_TYPE (HIGHER, 0)
+RELOC_TYPE (HIGHEST, 0)
+RELOC_TYPE (CALL_HI16, 0)
+RELOC_TYPE (CALL_LO16, 0)
+RELOC_TYPE (SCN_DISP, 0)
+RELOC_TYPE (REL16, 0)
+RELOC_TYPE (ADD_IMMEDIATE, 0)
+RELOC_TYPE (PJUMP, 0)
+RELOC_TYPE (RELGOT, 0)
+RELOC_TYPE (JALR, 0)
+RELOC_TYPE (TLS_DTPMOD32, 0)
+RELOC_TYPE (TLS_DTPREL32, 0)
+RELOC_TYPE (TLS_DTPMOD64, 0)
+RELOC_TYPE (TLS_DTPREL64, 0)
+RELOC_TYPE (TLS_GD, 0)
+RELOC_TYPE (TLS_LDM, 0)
+RELOC_TYPE (TLS_DTPREL_HI16, 0)
+RELOC_TYPE (TLS_DTPREL_LO16, 0)
+RELOC_TYPE (TLS_GOTTPREL, 0)
+RELOC_TYPE (TLS_TPREL32, 0)
+RELOC_TYPE (TLS_TPREL64, 0)
+RELOC_TYPE (TLS_TPREL_HI16, 0)
+RELOC_TYPE (TLS_TPREL_LO16, 0)
+
+#define NO_COPY_RELOC 1
+#define NO_RELATIVE_RELOC 1
diff --git a/backends/mips_retval.c b/backends/mips_retval.c
new file mode 100644
index 0000000..656cd1f
--- /dev/null
+++ b/backends/mips_retval.c
@@ -0,0 +1,321 @@
+/* Function return value location for Linux/mips ABI.
+ Copyright (C) 2005 Red Hat, Inc.
+ 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 <string.h>
+#include <assert.h>
+#include <dwarf.h>
+#include <elf.h>
+
+#include "../libebl/libeblP.h"
+#include "../libdw/libdwP.h"
+
+#define BACKEND mips_
+#include "libebl_CPU.h"
+
+/* The ABI of the file. Also see EF_MIPS_ABI2 above. */
+#define EF_MIPS_ABI 0x0000F000
+
+/* The original o32 abi. */
+#define E_MIPS_ABI_O32 0x00001000
+
+/* O32 extended to work on 64 bit architectures */
+#define E_MIPS_ABI_O64 0x00002000
+
+/* EABI in 32 bit mode */
+#define E_MIPS_ABI_EABI32 0x00003000
+
+/* EABI in 64 bit mode */
+#define E_MIPS_ABI_EABI64 0x00004000
+
+/* All the possible MIPS ABIs. */
+enum mips_abi
+ {
+ MIPS_ABI_UNKNOWN = 0,
+ MIPS_ABI_N32,
+ MIPS_ABI_O32,
+ MIPS_ABI_N64,
+ MIPS_ABI_O64,
+ MIPS_ABI_EABI32,
+ MIPS_ABI_EABI64,
+ MIPS_ABI_LAST
+ };
+
+/* Find the mips ABI of the current file */
+enum mips_abi find_mips_abi(Elf *elf)
+{
+ GElf_Ehdr ehdr_mem;
+ GElf_Ehdr *ehdr = gelf_getehdr (elf, &ehdr_mem);
+
+ if (ehdr == NULL)
+ return MIPS_ABI_LAST;
+
+ GElf_Word elf_flags = ehdr->e_flags;
+
+ /* Check elf_flags to see if it specifies the ABI being used. */
+ switch ((elf_flags & EF_MIPS_ABI))
+ {
+ case E_MIPS_ABI_O32:
+ return MIPS_ABI_O32;
+ case E_MIPS_ABI_O64:
+ return MIPS_ABI_O64;
+ case E_MIPS_ABI_EABI32:
+ return MIPS_ABI_EABI32;
+ case E_MIPS_ABI_EABI64:
+ return MIPS_ABI_EABI64;
+ default:
+ if ((elf_flags & EF_MIPS_ABI2))
+ return MIPS_ABI_N32;
+ }
+
+ /* GCC creates a pseudo-section whose name describes the ABI. */
+ size_t shstrndx;
+ if (elf_getshdrstrndx (elf, &shstrndx) < 0)
+ return MIPS_ABI_LAST;
+
+ const char *name;
+ Elf_Scn *scn = NULL;
+ while ((scn = elf_nextscn (elf, scn)) != NULL)
+ {
+ GElf_Shdr shdr_mem;
+ GElf_Shdr *shdr = gelf_getshdr (scn, &shdr_mem);
+ if (shdr == NULL)
+ return MIPS_ABI_LAST;
+
+ name = elf_strptr (elf, shstrndx, shdr->sh_name) ?: "";
+ if (strncmp (name, ".mdebug.", 8) != 0)
+ continue;
+
+ if (strcmp (name, ".mdebug.abi32") == 0)
+ return MIPS_ABI_O32;
+ else if (strcmp (name, ".mdebug.abiN32") == 0)
+ return MIPS_ABI_N32;
+ else if (strcmp (name, ".mdebug.abi64") == 0)
+ return MIPS_ABI_N64;
+ else if (strcmp (name, ".mdebug.abiO64") == 0)
+ return MIPS_ABI_O64;
+ else if (strcmp (name, ".mdebug.eabi32") == 0)
+ return MIPS_ABI_EABI32;
+ else if (strcmp (name, ".mdebug.eabi64") == 0)
+ return MIPS_ABI_EABI64;
+ else
+ return MIPS_ABI_UNKNOWN;
+ }
+
+ return MIPS_ABI_UNKNOWN;
+}
+
+unsigned int
+mips_abi_regsize (enum mips_abi abi)
+{
+ switch (abi)
+ {
+ case MIPS_ABI_EABI32:
+ case MIPS_ABI_O32:
+ return 4;
+ case MIPS_ABI_N32:
+ case MIPS_ABI_N64:
+ case MIPS_ABI_O64:
+ case MIPS_ABI_EABI64:
+ return 8;
+ case MIPS_ABI_UNKNOWN:
+ case MIPS_ABI_LAST:
+ default:
+ return 0;
+ }
+}
+
+
+/* $v0 or pair $v0, $v1 */
+static const Dwarf_Op loc_intreg_o32[] =
+ {
+ { .atom = DW_OP_reg2 }, { .atom = DW_OP_piece, .number = 4 },
+ { .atom = DW_OP_reg3 }, { .atom = DW_OP_piece, .number = 4 },
+ };
+
+static const Dwarf_Op loc_intreg[] =
+ {
+ { .atom = DW_OP_reg2 }, { .atom = DW_OP_piece, .number = 8 },
+ { .atom = DW_OP_reg3 }, { .atom = DW_OP_piece, .number = 8 },
+ };
+#define nloc_intreg 1
+#define nloc_intregpair 4
+
+/* $f0 (float), or pair $f0, $f1 (double).
+ * f2/f3 are used for COMPLEX (= 2 doubles) returns in Fortran */
+static const Dwarf_Op loc_fpreg_o32[] =
+ {
+ { .atom = DW_OP_regx, .number = 32 }, { .atom = DW_OP_piece, .number = 4 },
+ { .atom = DW_OP_regx, .number = 33 }, { .atom = DW_OP_piece, .number = 4 },
+ { .atom = DW_OP_regx, .number = 34 }, { .atom = DW_OP_piece, .number = 4 },
+ { .atom = DW_OP_regx, .number = 35 }, { .atom = DW_OP_piece, .number = 4 },
+ };
+
+/* $f0, or pair $f0, $f2. */
+static const Dwarf_Op loc_fpreg[] =
+ {
+ { .atom = DW_OP_regx, .number = 32 }, { .atom = DW_OP_piece, .number = 8 },
+ { .atom = DW_OP_regx, .number = 34 }, { .atom = DW_OP_piece, .number = 8 },
+ };
+#define nloc_fpreg 1
+#define nloc_fpregpair 4
+#define nloc_fpregquad 8
+
+/* The return value is a structure and is actually stored in stack space
+ passed in a hidden argument by the caller. But, the compiler
+ helpfully returns the address of that space in $v0. */
+static const Dwarf_Op loc_aggregate[] =
+ {
+ { .atom = DW_OP_breg2, .number = 0 }
+ };
+#define nloc_aggregate 1
+
+int
+mips_return_value_location (Dwarf_Die *functypedie, const Dwarf_Op **locp)
+{
+ /* First find the ABI used by the elf object */
+ enum mips_abi abi = find_mips_abi(functypedie->cu->dbg->elf);
+
+ /* Something went seriously wrong while trying to figure out the ABI */
+ if (abi == MIPS_ABI_LAST)
+ return -1;
+
+ /* We couldn't identify the ABI, but the file seems valid */
+ if (abi == MIPS_ABI_UNKNOWN)
+ return -2;
+
+ /* Can't handle EABI variants */
+ if ((abi == MIPS_ABI_EABI32) || (abi == MIPS_ABI_EABI64))
+ return -2;
+
+ unsigned int regsize = mips_abi_regsize (abi);
+ if (!regsize)
+ return -2;
+
+ /* 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:
+ {
+ Dwarf_Word size;
+ 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 = regsize;
+ else
+ return -1;
+ }
+ 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;
+
+#define ABI_LOC(loc, regsize) ((regsize) == 4 ? (loc ## _o32) : (loc))
+
+ if (encoding == DW_ATE_float)
+ {
+ *locp = ABI_LOC(loc_fpreg, regsize);
+ if (size <= regsize)
+ return nloc_fpreg;
+
+ if (size <= 2*regsize)
+ return nloc_fpregpair;
+
+ if (size <= 4*regsize && abi == MIPS_ABI_O32)
+ return nloc_fpregquad;
+
+ goto aggregate;
+ }
+ }
+ *locp = ABI_LOC(loc_intreg, regsize);
+ if (size <= regsize)
+ return nloc_intreg;
+ if (size <= 2*regsize)
+ return nloc_intregpair;
+
+ /* Else fall through. Shouldn't happen though (at least with gcc) */
+ }
+
+ case DW_TAG_structure_type:
+ case DW_TAG_class_type:
+ case DW_TAG_union_type:
+ case DW_TAG_array_type:
+ aggregate:
+ /* XXX TODO: Can't handle structure return with other ABI's yet :-/ */
+ if ((abi != MIPS_ABI_O32) && (abi != MIPS_ABI_O64))
+ return -2;
+
+ *locp = loc_aggregate;
+ return nloc_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;
+}
diff --git a/backends/mips_symbol.c b/backends/mips_symbol.c
new file mode 100644
index 0000000..261b05d
--- /dev/null
+++ b/backends/mips_symbol.c
@@ -0,0 +1,53 @@
+/* MIPS specific symbolic name handling.
+ Copyright (C) 2002, 2003, 2005 Red Hat, Inc.
+ This file is part of Red Hat elfutils.
+ Written by Jakub Jelinek <jakub@redhat.com>, 2002.
+
+ 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 <elf.h>
+#include <stddef.h>
+
+#define BACKEND mips_
+#include "libebl_CPU.h"
+
+/* Check for the simple reloc types. */
+Elf_Type
+mips_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type,
+ int *addsub __attribute__ ((unused)))
+{
+ switch (type)
+ {
+ case R_MIPS_16:
+ return ELF_T_HALF;
+ case R_MIPS_32:
+ return ELF_T_WORD;
+ case R_MIPS_64:
+ return ELF_T_XWORD;
+ default:
+ return ELF_T_NUM;
+ }
+}
diff --git a/libebl/eblopenbackend.c b/libebl/eblopenbackend.c
index 210b47e..1feac13 100644
--- a/libebl/eblopenbackend.c
+++ b/libebl/eblopenbackend.c
@@ -57,6 +57,7 @@ const char *m68k_init (Elf *, GElf_Half, Ebl *, size_t);
const char *bpf_init (Elf *, GElf_Half, Ebl *, size_t);
const char *riscv_init (Elf *, GElf_Half, Ebl *, size_t);
const char *csky_init (Elf *, GElf_Half, Ebl *, size_t);
+const char *mips_init (Elf *, GElf_Half, Ebl *, size_t);
/* This table should contain the complete list of architectures as far
as the ELF specification is concerned. */
@@ -87,6 +88,8 @@ static const struct
{ sparc_init, "elf_sparc", "sparc", 5, EM_SPARC, 0, 0 },
{ sparc_init, "elf_sparcv8plus", "sparc", 5, EM_SPARC32PLUS, 0, 0 },
{ s390_init, "ebl_s390", "s390", 4, EM_S390, 0, 0 },
+ { mips_init, "elf_mips", "mips", 4, EM_MIPS, 0, 0 },
+ { mips_init, "elf_mipsel", "mipsel", 4, EM_MIPS_RS3_LE, 0, 0 },
{ NULL, "elf_m32", "m32", 3, EM_M32, 0, 0 },
{ m68k_init, "elf_m68k", "m68k", 4, EM_68K, ELFCLASS32, ELFDATA2MSB },
--
2.17.1
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